*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
:root{
  --bg0:#09090f;--bg1:#0e1018;--bg2:#14161f;--bg3:#1b1e29;
  --border:#252836;--border2:#333748;
  --text1:#eaedf5;--text2:#8b90a8;--text3:#60657a;
  --accent:#a78bfa;--accent2:#6d28d9;
  --green:#3fb950;--green-bg:#0d2a14;
  --yellow:#d29922;--yellow-bg:#2a1f0a;
  --red:#f85149;--red-bg:#2a0d0d;
  --purple:#bc8cff;--purple-bg:#1a0d2e;
  --orange:#e3b341;
  --radius:6px;--radius2:12px;
  --shadow:0 8px 24px rgba(0,0,0,.4);
  --transition:.15s ease;
}
html{scroll-behavior:smooth;overflow-x:hidden}
body{background:var(--bg0);color:var(--text1);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;font-size:14px;line-height:1.6;min-height:100vh;overflow-x:hidden;padding-top:56px}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
button{cursor:pointer;font:inherit;border:none;outline:none}
input,select,textarea{font:inherit;background:var(--bg2);border:1px solid var(--border);color:var(--text1);border-radius:var(--radius);padding:8px 12px;outline:none;transition:border-color var(--transition)}
input:focus,select:focus,textarea:focus{border-color:var(--accent)}
select option{background:var(--bg2)}
textarea{resize:vertical;min-height:80px}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--bg1)}
::-webkit-scrollbar-thumb{background:var(--bg3);border-radius:3px}

/* ─── Layout ─────────────────────────────────────────────── */
#app{display:flex;flex-direction:column;min-height:100vh}
.nav{background:var(--bg1);border-bottom:1px solid var(--border);padding:0 24px;display:flex;align-items:center;gap:8px;height:56px;position:fixed;top:0;left:0;right:0;z-index:100}
.nav-logo{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:18px;color:var(--text1);margin-right:12px;letter-spacing:-.5px;white-space:nowrap;cursor:pointer}
.nav-logo-icon{width:26px;height:26px;border-radius:7px;flex-shrink:0}
.nav-logo span{background:linear-gradient(135deg,#a78bfa,#e879f9);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-links{display:flex;align-items:center;gap:2px;flex:1}
.nav-link{padding:6px 12px;background:none;border:none;color:#fff;font-size:13px;font-weight:500;transition:color var(--transition);white-space:nowrap;text-decoration:none;text-underline-offset:5px;text-decoration-thickness:2px}
.nav-link:hover,.nav-link.active{color:#fff;background:none;text-decoration:underline}
.nav-right{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-search{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:6px 12px;width:200px;font-size:13px}
.nav-menu-wrap{position:relative}
.nav-menu-btn{background:none;border:none;color:var(--text2);font-size:22px;cursor:pointer;padding:4px 8px;border-radius:var(--radius1);line-height:1;display:flex;align-items:center;justify-content:center;width:34px;height:34px;letter-spacing:1px}
.nav-menu-btn:hover{background:var(--bg2);color:var(--text1)}
.nav-dropdown{display:none;position:absolute;top:calc(100% + 6px);right:0;background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);min-width:190px;box-shadow:0 8px 24px rgba(0,0,0,.25);z-index:300;overflow:hidden}
.nav-dropdown.open{display:block}
.nav-dropdown-item{display:block;width:100%;text-align:left;background:none;border:none;padding:11px 16px;font-size:13px;color:var(--text1);cursor:pointer;font-family:inherit;transition:background var(--transition)}
.nav-dropdown-item:hover{background:var(--bg2)}
.nav-dropdown-divider{height:1px;background:var(--border);margin:4px 0}
.nav-dropdown-danger{color:var(--red)!important}
.nav-dropdown-danger:hover{background:rgba(239,68,68,.08)!important}
.settings-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border)}
.settings-row:last-child{border-bottom:none}
.settings-row-label{font-size:14px;color:var(--text1);font-weight:500}
.settings-row-sub{font-size:12px;color:var(--text3);margin-top:2px}
.toggle-switch{position:relative;display:inline-block;width:40px;height:22px;flex-shrink:0}
.toggle-switch input{opacity:0;width:0;height:0}
.toggle-slider{position:absolute;cursor:pointer;inset:0;background:var(--bg3);border-radius:22px;transition:background .2s}
.toggle-slider:before{content:'';position:absolute;height:16px;width:16px;left:3px;bottom:3px;background:#fff;border-radius:50%;transition:transform .2s}
.toggle-switch input:checked+.toggle-slider{background:var(--accent2)}
.toggle-switch input:checked+.toggle-slider:before{transform:translateX(18px)}
.main{flex:1;padding:24px;max-width:1280px;margin:0 auto;width:100%}
.page{display:none}.page.active{display:block}

/* ─── Buttons ─────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius);font-size:13px;font-weight:500;transition:all var(--transition);white-space:nowrap}
.btn-primary{background:var(--accent2);color:#fff}.btn-primary:hover{background:var(--accent);color:#09090f}
.btn-sm{padding:4px 10px;font-size:12px}
.btn-ghost{background:transparent;color:var(--text2);border:1px solid var(--border)}.btn-ghost:hover{color:var(--text1);border-color:var(--border2)}
.btn-danger{background:#b91c1c;color:#fff}.btn-danger:hover{background:var(--red)}
.btn-success{background:#166534;color:#fff}.btn-success:hover{background:var(--green)}
.btn-icon{background:transparent;color:var(--text2);padding:6px;border-radius:var(--radius)}.btn-icon:hover{color:var(--text1);background:var(--bg2)}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ─── Cards ─────────────────────────────────────────────── */
.card{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:20px}
.card-sm{padding:14px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}

/* ─── Interview Planner ──────────────────────────────────────────────────── */
/* Create form */
.plan-create-wrap{max-width:520px;margin:0 auto}
.plan-create-hero{text-align:center;padding:32px 0 24px}
.plan-create-icon{font-size:56px;margin-bottom:14px}
.plan-create-title{font-size:22px;font-weight:800;margin-bottom:10px}
.plan-create-sub{font-size:14px;color:var(--text2);line-height:1.65;max-width:400px;margin:0 auto}
.plan-create-form{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:24px}
.plan-preview-badge{background:rgba(167,139,250,.1);border:1px solid rgba(167,139,250,.25);border-radius:var(--radius);padding:10px 14px;font-size:13px;color:var(--text2);margin-bottom:4px}

/* Plans list (overview of all saved plans) */
.plan-loading{text-align:center;color:var(--text3);font-size:13px;padding:40px 0}
.plan-list-hdr{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.plan-list-title{font-size:16px;font-weight:800;color:var(--text1);display:flex;align-items:center;gap:8px}
.plan-list-count{font-size:12px;font-weight:700;color:var(--text2);background:var(--bg3);border-radius:20px;padding:2px 9px}
.plan-list-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.plan-summary-card{position:relative;background:var(--bg1);border:1px solid var(--border);border-left:3px solid var(--sc,var(--border));border-radius:var(--radius2);padding:16px;cursor:pointer;transition:border-color var(--transition),transform var(--transition)}
.plan-summary-card:hover{border-color:var(--border2);transform:translateY(-2px)}
.plan-summary-card.is-past{opacity:.7}
.plan-summary-del{position:absolute;top:10px;right:10px;width:24px;height:24px;border:none;background:var(--bg3);color:var(--text3);border-radius:6px;cursor:pointer;font-size:12px;line-height:1;display:flex;align-items:center;justify-content:center;transition:all var(--transition);opacity:0}
.plan-summary-card:hover .plan-summary-del{opacity:1}
.plan-summary-del:hover{background:var(--red-bg);color:var(--red)}
.plan-summary-top{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.plan-summary-emoji{font-size:20px;width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.plan-summary-name{font-weight:700;font-size:14px;color:var(--text1)}
.plan-summary-role{font-size:12px;color:var(--text3)}
.plan-summary-status{font-size:13px;font-weight:700;margin-bottom:4px}
.plan-summary-date{font-size:12px;color:var(--text3);margin-bottom:10px}
.plan-summary-bar-wrap{height:6px;background:var(--bg3);border-radius:3px;overflow:hidden;margin-bottom:6px}
.plan-summary-bar{height:100%;background:linear-gradient(90deg,#a78bfa,#3fb950);border-radius:3px;transition:width .4s}
.plan-summary-pct{font-size:11px;color:var(--text2);font-weight:600}

/* Plan header */
.plan-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.plan-header-actions{display:flex;align-items:center;gap:8px}
.plan-header-del:hover{color:var(--red)}
.plan-company-badge{display:flex;align-items:center;gap:12px;padding:12px 16px;border:1px solid;border-radius:var(--radius2)}
.plan-progress-row{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.plan-progress-bar-wrap{flex:1;height:8px;background:var(--bg3);border-radius:4px;overflow:hidden}
.plan-progress-bar{height:100%;background:linear-gradient(90deg,#a78bfa,#3fb950);border-radius:4px;transition:width .4s ease}
.plan-pct-label{font-size:12px;font-weight:600;color:var(--text2);white-space:nowrap}

/* Phases */
.plan-phases{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.plan-phase-pill{display:flex;flex-direction:column;gap:2px;padding:8px 14px;border-radius:var(--radius2);border:1px solid var(--border);background:rgba(var(--pc-r,167),var(--pc-g,139),var(--pc-b,250),.08);font-size:12px;font-weight:600;color:var(--text1);border-color:rgba(167,139,250,.2)}

/* Today card */
.plan-today-card{background:linear-gradient(135deg,rgba(167,139,250,.08),rgba(96,165,250,.06));border:1px solid rgba(167,139,250,.25);border-radius:var(--radius2);padding:18px 20px;margin-bottom:20px}
.plan-today-interview{border-color:rgba(63,185,80,.3);background:linear-gradient(135deg,rgba(63,185,80,.08),rgba(63,185,80,.04))}
.plan-today-hdr{display:flex;align-items:center;justify-content:space-between;gap:12px;font-weight:600;font-size:14px;margin-bottom:14px;flex-wrap:wrap}
.plan-phase-tag{font-size:11px;padding:3px 10px;border-radius:20px;font-weight:600}
.plan-today-tasks{display:flex;flex-direction:column;gap:8px}

/* Tips row */
.plan-tips-row{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}
.plan-tip{font-size:12.5px;color:var(--text2);background:var(--bg2);border-left:3px solid var(--accent);border-radius:0 var(--radius) var(--radius) 0;padding:8px 12px}

/* Timeline */
.plan-timeline-hdr{font-size:13px;font-weight:700;color:var(--text2);text-transform:uppercase;letter-spacing:.6px;margin-bottom:10px}
.plan-timeline{display:flex;flex-direction:column;gap:6px}
.plan-day-card{background:var(--bg1);border:1px solid var(--border);border-left:3px solid var(--border);border-radius:var(--radius2);overflow:hidden;transition:border-color var(--transition)}
/* Date-status colours: past = grey, today = green, upcoming = yellow */
.plan-day-card.is-past{border-left-color:var(--text3);opacity:.6}
.plan-day-card.is-past .plan-day-date{color:var(--text3)}
.plan-day-card.is-today{border-left-color:var(--green);box-shadow:0 0 0 1px rgba(63,185,80,.35);background:linear-gradient(90deg,rgba(63,185,80,.07),transparent 60%)}
.plan-day-card.is-today .plan-day-date{color:var(--green);font-weight:600}
.plan-day-card.is-future{border-left-color:var(--yellow)}
.plan-day-card.is-future .plan-day-date{color:var(--yellow)}
.plan-day-hdr{display:flex;align-items:center;gap:12px;padding:12px 16px;cursor:pointer;user-select:none}
.plan-day-hdr:hover{background:var(--bg2)}
.plan-day-num{font-size:11px;font-weight:700;padding:3px 8px;border-radius:20px;white-space:nowrap}
.plan-day-info{flex:1;min-width:0}
.plan-day-theme{font-weight:600;font-size:13.5px;display:block}
.plan-day-date{font-size:11px;color:var(--text3)}
.plan-day-meta{display:flex;align-items:center;gap:8px}
.plan-day-progress{font-size:11px;color:var(--text3)}
.plan-day-chev{font-size:10px;color:var(--text3);transition:transform .2s}
.plan-day-card.expanded .plan-day-chev{transform:rotate(90deg)}
.plan-day-body{display:none;padding:4px 16px 14px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:6px}
.plan-day-card:not(.expanded) .plan-day-body{display:none}
.plan-day-card.expanded .plan-day-body{display:flex}
.plan-day-card.is-today .plan-day-body{display:flex}

/* Task rows */
.plan-task-row{display:flex;align-items:center;gap:10px;padding:6px 0;font-size:13px}
.plan-task-row.done .plan-task-title{text-decoration:line-through;opacity:.5}
.plan-task-check-wrap{display:flex;align-items:center;cursor:pointer;flex-shrink:0}
.plan-task-check-wrap input{display:none}
.plan-task-check-box{width:16px;height:16px;border-radius:4px;border:2px solid var(--border2);background:var(--bg2);transition:all .15s;flex-shrink:0}
.plan-task-check-wrap input:checked ~ .plan-task-check-box{background:var(--accent2);border-color:var(--accent2)}
.plan-task-check-box::after{content:'✓';display:none;color:#fff;font-size:10px;font-weight:700;text-align:center;line-height:12px}
.plan-task-check-wrap input:checked ~ .plan-task-check-box::after{display:block}
.plan-task-icon{flex-shrink:0;font-size:14px;width:20px;text-align:center}
.plan-task-title{flex:1;color:var(--text1);line-height:1.4}
.plan-task-link{cursor:pointer;color:var(--accent)}
.plan-task-link:hover{text-decoration:underline}
.plan-task-dur{font-size:11px;white-space:nowrap;font-weight:600}

/* Dashboard widget */
.plan-widget{background:linear-gradient(135deg,rgba(167,139,250,.1),rgba(96,165,250,.07));border:1px solid rgba(167,139,250,.25);border-radius:var(--radius2);padding:14px 18px;cursor:pointer;transition:border-color var(--transition)}
.plan-widget:hover{border-color:rgba(167,139,250,.5)}
.plan-widget-hdr{display:flex;align-items:center;justify-content:space-between;font-weight:700;font-size:14px;margin-bottom:8px}
.plan-widget-days{font-size:13px;font-weight:700}
.plan-widget-bar-wrap{height:5px;background:var(--bg3);border-radius:3px;overflow:hidden;margin-bottom:8px}
.plan-widget-bar{height:100%;background:linear-gradient(90deg,#a78bfa,#3fb950);border-radius:3px;transition:width .4s}
.plan-widget-focus{font-size:12.5px;color:var(--text2)}

@media(max-width:640px){
  .plan-header{flex-direction:column;align-items:flex-start}
  .plan-phases{gap:6px}
  .plan-phase-pill{padding:6px 10px}
  .plan-today-hdr{flex-direction:column;align-items:flex-start}
}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}

/* ─── Badges ─────────────────────────────────────────────── */
.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;letter-spacing:.3px}
.badge-easy{background:var(--green-bg);color:var(--green)}
.badge-medium{background:var(--yellow-bg);color:var(--yellow)}
.badge-hard{background:var(--red-bg);color:var(--red)}
.badge-tag{background:var(--bg3);color:var(--text2);font-size:11px;border-radius:var(--radius)}
.badge-solved{background:var(--green-bg);color:var(--green)}
.badge-attempted{background:var(--yellow-bg);color:var(--yellow)}
.badge-revision{background:var(--purple-bg);color:var(--purple)}
.badge-notstarted{background:var(--bg3);color:var(--text3)}
.badge-premium{background:#78350f;color:#fde68a}
.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:4px}
.dot-green{background:var(--green)}.dot-yellow{background:var(--yellow)}.dot-red{background:var(--red)}.dot-gray{background:var(--text3)}

/* ─── Tables ─────────────────────────────────────────────── */
/* Base table-wrap — overridden below with scroll fix */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius2)}
table{width:100%;border-collapse:collapse}
th{background:var(--bg2);color:var(--text2);font-size:12px;font-weight:600;padding:10px 14px;text-align:left;border-bottom:1px solid var(--border);text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}
td{padding:10px 14px;border-bottom:1px solid var(--border);vertical-align:middle;max-width:0;overflow-wrap:break-word;word-break:break-word}
@media(max-width:768px){
  th,td{padding:8px 10px}
  td{max-width:none}
}
tr:last-child td{border-bottom:none}
tr:hover td{background:rgba(255,255,255,.02)}
.clickable-row{cursor:pointer}

/* ─── Filters / Sidebar ─────────────────────────────────── */
.page-layout{display:grid;grid-template-columns:240px 1fr;gap:20px;align-items:start}
.sidebar{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:16px;position:sticky;top:76px}
.filter-section{margin-bottom:16px}
.filter-label{font-size:11px;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;display:block}
.filter-chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{padding:4px 10px;border-radius:999px;font-size:12px;border:1px solid var(--border);color:var(--text2);background:transparent;cursor:pointer;transition:all var(--transition)}
.chip:hover{border-color:var(--accent);color:var(--accent)}
.chip.active{background:var(--accent2);border-color:var(--accent2);color:#fff}
.chip[data-val="Easy"]{border-color:var(--green);color:var(--green)}
.chip[data-val="Easy"]:hover,.chip[data-val="Easy"].active{background:var(--green-bg);border-color:var(--green);color:var(--green)}
.chip[data-val="Medium"]{border-color:var(--yellow);color:var(--yellow)}
.chip[data-val="Medium"]:hover,.chip[data-val="Medium"].active{background:var(--yellow-bg);border-color:var(--yellow);color:var(--yellow)}
.chip[data-val="Hard"]{border-color:var(--red);color:var(--red)}
.chip[data-val="Hard"]:hover,.chip[data-val="Hard"].active{background:var(--red-bg);border-color:var(--red);color:var(--red)}
.filter-input{width:100%;margin-bottom:8px}

/* ─── Pagination ─────────────────────────────────────────── */
.pagination{display:flex;align-items:center;gap:6px;justify-content:center;margin-top:20px}
.page-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius);font-size:13px;background:var(--bg2);color:var(--text2);border:1px solid var(--border);cursor:pointer;transition:all var(--transition)}
.page-btn:hover,.page-btn.active{background:var(--accent2);color:#fff;border-color:var(--accent2)}
.page-info{color:var(--text2);font-size:13px}
.page-jump{width:56px;height:32px;padding:0 6px;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg2);color:var(--text1);font-size:13px;text-align:center;-moz-appearance:textfield}
.page-jump::-webkit-outer-spin-button,.page-jump::-webkit-inner-spin-button{-webkit-appearance:none}
.page-jump:focus{outline:none;border-color:var(--accent2)}

/* ─── DSA Study Guide ───────────────────────────────────── */
.helper-bubble{position:fixed;bottom:28px;right:28px;display:none;flex-direction:column;align-items:flex-end;gap:10px;z-index:99}
.helper-bubble.visible{display:flex}
.guide-fab{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,#a78bfa,#6d28d9);color:#fff;font-size:22px;display:flex;align-items:center;justify-content:center;cursor:pointer;border:none;box-shadow:0 4px 20px rgba(109,40,217,.5);transition:transform .2s,box-shadow .2s}
.guide-fab:hover{transform:scale(1.1);box-shadow:0 6px 28px rgba(109,40,217,.7)}
.helper-bubble:not(.is-minimized) .guide-fab{display:none}
.helper-bubble.is-minimized .helper-card{display:none}
.helper-card{background:var(--bg1);border:1px solid rgba(167,139,250,.4);border-radius:16px;padding:14px 36px 14px 14px;display:flex;align-items:center;gap:12px;cursor:pointer;box-shadow:0 8px 32px rgba(109,40,217,.35),0 2px 8px rgba(0,0,0,.45);transition:transform .15s,box-shadow .15s;position:relative;max-width:min(220px,calc(100vw - 60px));animation:helper-pop .3s ease}
@keyframes helper-pop{from{opacity:0;transform:scale(.85) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}
.helper-card:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(109,40,217,.45),0 2px 8px rgba(0,0,0,.4)}
.helper-avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,#a78bfa,#6d28d9);display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}
.helper-texts{flex:1;min-width:0}
.helper-greeting{display:block;font-size:13px;font-weight:700;color:var(--text1);white-space:nowrap}
.helper-sub{display:block;font-size:11px;color:var(--accent);margin-top:2px;white-space:nowrap}
.helper-min-btn{width:22px;height:22px;border-radius:50%;background:var(--bg3);border:1px solid var(--border);color:var(--text3);font-size:16px;line-height:1;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s,color .15s;position:absolute;top:7px;right:8px;padding:0;font:inherit}
.helper-min-btn:hover{background:var(--bg2);color:var(--text1)}
.guide-overlay{position:fixed;inset:0;background:rgba(0,0,0,.72);z-index:500;display:none;align-items:flex-start;justify-content:center;padding:20px 16px;overflow-y:auto;backdrop-filter:blur(3px)}
.guide-overlay.open{display:flex}
.guide-modal{background:var(--bg1);border-radius:var(--radius2);width:100%;max-width:min(920px,calc(100% - 32px));border:1px solid var(--border2);position:relative;margin:auto;padding:28px 32px}
.guide-modal-hdr{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}
.guide-modal-title{font-size:20px;font-weight:700;color:var(--text1)}
.guide-modal-sub{font-size:13px;color:var(--text2);margin-bottom:20px;min-height:18px}
.guide-close-btn{background:none;border:none;color:var(--text3);font-size:26px;cursor:pointer;line-height:1;padding:2px 6px;border-radius:var(--radius)}
.guide-close-btn:hover{color:var(--text1);background:var(--bg3)}
.guide-back-btn{display:inline-flex;align-items:center;gap:5px;font-size:13px;color:var(--text2);cursor:pointer;background:none;border:none;padding:0;margin-bottom:16px;font:inherit}
.guide-back-btn:hover{color:var(--text1)}
.guide-levels{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.level-card{background:var(--bg2);border:2px solid var(--border);border-radius:var(--radius2);padding:22px 16px;cursor:pointer;transition:all .2s;text-align:center;display:flex;flex-direction:column;align-items:center;gap:8px;font:inherit;color:var(--text1)}
.level-card:hover{border-color:#a78bfa;transform:translateY(-3px);box-shadow:0 8px 24px rgba(109,40,217,.25)}
.level-card strong{font-size:16px;font-weight:700;color:var(--text1)}
.level-emoji{font-size:38px;display:block;line-height:1}
.level-name{font-size:16px;font-weight:700;color:var(--text1)}
.level-desc{font-size:12px;color:var(--text2);line-height:1.55}
.level-badge{font-size:11px;font-weight:600;background:rgba(167,139,250,.15);color:#a78bfa;padding:3px 10px;border-radius:20px;display:inline-block}
.roadmap-hero{background:linear-gradient(135deg,rgba(167,139,250,.1),rgba(109,40,217,.06));border:1px solid rgba(167,139,250,.2);border-radius:var(--radius2);padding:18px 20px;margin-bottom:18px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.roadmap-hero-box h5{font-size:10px;text-transform:uppercase;letter-spacing:.8px;color:#a78bfa;margin-bottom:6px;font-weight:700}
.roadmap-hero-box p{font-size:13px;color:var(--text2);line-height:1.55}
.roadmap-hero-box ul{padding-left:14px;font-size:13px;color:var(--text2);line-height:1.9}
.roadmap-weeks{display:flex;flex-direction:column;gap:8px}
.week-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);overflow:hidden}
.week-hdr{display:flex;align-items:center;gap:12px;padding:13px 16px;cursor:pointer;transition:background .15s;user-select:none}
.week-hdr:hover{background:var(--bg3)}
.week-num-badge{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,#a78bfa,#6d28d9);color:#fff;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.week-title-col{flex:1;min-width:0}
.week-card-title{font-size:14px;font-weight:600;color:var(--text1)}
.week-card-sub{font-size:11px;color:var(--text3);margin-top:2px}
.week-chev{font-size:11px;color:var(--text3);transition:transform .2s;flex-shrink:0}
.week-card.wk-open .week-chev{transform:rotate(180deg)}
.week-body{padding:4px 16px 18px;display:none}
.week-card.wk-open .week-body{display:block}
.wk-section-lbl{font-size:10px;text-transform:uppercase;letter-spacing:.8px;color:var(--text3);font-weight:700;margin:16px 0 8px;display:block}
.wk-section-lbl:first-child{margin-top:8px}
.topic-chips{display:flex;flex-wrap:wrap;gap:6px}
.topic-chip{background:rgba(167,139,250,.1);color:#c4b5fd;border:1px solid rgba(167,139,250,.2);padding:3px 10px;border-radius:20px;font-size:12px}
.topic-chip-btn{cursor:pointer;transition:background var(--transition),border-color var(--transition),transform var(--transition);font:inherit}
.topic-chip-btn:hover{background:rgba(167,139,250,.22);border-color:rgba(167,139,250,.5);transform:translateY(-1px)}
.topic-chip-btn::after{content:' ↗';opacity:.5;font-size:10px}
/* Topic definition card inside modal */
.topic-def-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:18px}
.topic-def-title{font-size:16px;font-weight:700;color:var(--text1);line-height:1.3}
.topic-def-close{width:28px;height:28px;border-radius:50%;background:var(--bg3);border:none;color:var(--text2);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background var(--transition)}
.topic-def-close:hover{background:var(--border2);color:var(--text1)}
.topic-def-section{margin-bottom:16px}
.topic-def-label{font-size:10px;font-weight:700;letter-spacing:.7px;text-transform:uppercase;color:var(--text3);margin-bottom:6px}
.topic-def-text{font-size:13.5px;color:var(--text2);line-height:1.65}
.topic-def-code{background:var(--bg0);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;font-family:'JetBrains Mono','Fira Code',monospace;font-size:12px;line-height:1.7;color:var(--text1);overflow-x:auto;white-space:pre;margin:0}
.topic-def-rules{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}
.topic-def-rules li{font-size:13px;color:var(--text2);line-height:1.55;padding-left:16px;position:relative}
.topic-def-rules li::before{content:'▸';position:absolute;left:0;color:var(--accent);font-size:11px;top:2px}
.topic-def-gotcha{background:rgba(248,81,73,.08);border:1px solid rgba(248,81,73,.2);border-radius:var(--radius);padding:10px 12px;font-size:12.5px;color:var(--text2);line-height:1.55}
.topic-def-gotcha strong{color:#f85149}
.guide-q-list{display:flex;flex-direction:column;gap:5px}
.guide-q-item{display:flex;align-items:center;gap:8px;padding:8px 10px;background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:border-color .15s;min-width:0}
.guide-q-item:hover{border-color:#a78bfa}
.guide-q-title{font-size:13px;color:var(--text1);flex:1;text-align:left;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.guide-q-diff{font-size:10px;font-weight:700;padding:2px 7px;border-radius:10px;white-space:nowrap;font-style:normal;flex-shrink:0}
.guide-q-diff.Easy{background:var(--green-bg);color:var(--green)}
.guide-q-diff.Medium{background:var(--yellow-bg);color:var(--yellow)}
.guide-q-diff.Hard{background:var(--red-bg);color:var(--red)}
.guide-resources{display:flex;flex-direction:column;gap:6px}
.guide-resource{display:flex;align-items:center;gap:7px;font-size:13px;color:#a78bfa;text-decoration:none}
.guide-resource:hover{text-decoration:underline}
.guide-tip{margin-top:12px;background:rgba(210,153,34,.07);border:1px solid rgba(210,153,34,.2);border-radius:var(--radius);padding:10px 12px;font-size:12px;color:var(--text2);line-height:1.55}
.guide-theory-toggle{display:flex;align-items:center;gap:8px;margin-top:12px;padding:8px 10px;background:rgba(167,139,250,.07);border:1px solid rgba(167,139,250,.18);border-radius:var(--radius);cursor:pointer;font-size:12px;font-weight:600;color:#a78bfa;user-select:none;transition:background var(--transition)}
.guide-theory-toggle:hover{background:rgba(167,139,250,.13)}
.guide-theory-toggle .theory-chev{margin-left:auto;font-size:11px;transition:transform .2s}
.guide-theory-toggle.open .theory-chev{transform:rotate(90deg)}
.guide-theory-body{display:none;padding:10px 12px;font-size:13px;color:var(--text2);line-height:1.7;border:1px solid rgba(167,139,250,.15);border-top:none;border-radius:0 0 var(--radius) var(--radius);background:rgba(167,139,250,.04)}
.guide-theory-body.open{display:block}
.guide-notes{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:5px}
.guide-notes li{font-size:12px;color:var(--text2);line-height:1.55;padding:5px 8px 5px 26px;position:relative;background:var(--bg3);border-radius:var(--radius)}
.guide-notes li::before{content:"→";position:absolute;left:8px;color:var(--accent2);font-size:11px}
.guide-template{font-family:'JetBrains Mono','Fira Code',monospace;font-size:11px;line-height:1.6;background:var(--bg0);color:var(--text1);padding:12px 14px;border-radius:var(--radius);overflow-x:auto;white-space:pre;margin:0}
@media(hover:none){.level-card:hover{transform:none;box-shadow:none}.topic-card:hover{transform:none}.guide-q-item:hover{border-color:var(--border)}}

/* ─── Tabs ─────────────────────────────────────────────── */
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--border);margin-bottom:20px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.tabs::-webkit-scrollbar{display:none}
.tab{padding:10px 16px;font-size:13px;font-weight:500;color:var(--text2);background:transparent;border:none;border-bottom:2px solid transparent;margin-bottom:-1px;cursor:pointer;white-space:nowrap;transition:all var(--transition)}
.tab:hover{color:var(--text1)}
.tab.active{color:var(--accent);border-bottom-color:var(--accent)}

/* ─── Auth ─────────────────────────────────────────────── */
#page-auth{align-items:center;justify-content:center;min-height:calc(100vh - 56px);background:radial-gradient(ellipse at 50% 0%,rgba(109,40,217,.12) 0%,transparent 65%)}
#page-auth.active{display:flex}

/* When a guest hits a login-required page, show the auth box as a modal
   overlay on top of the (blurred, inert) page they were trying to reach —
   instead of replacing it with a blank/black auth screen. */
#page-auth.overlay-mode{position:fixed;inset:0;z-index:450;min-height:0;background:rgba(6,7,14,.6);backdrop-filter:blur(3px);animation:fadeIn .25s ease;cursor:pointer}
#page-auth.overlay-mode .auth-wrap{cursor:auto}
body.auth-gate-open #main-nav,
body.auth-gate-open .page.active:not(#page-auth){
  filter:blur(11px) brightness(.55) saturate(.75);
  pointer-events:none;
  user-select:none;
  transition:filter .4s ease;
}
@media (prefers-reduced-motion:reduce){
  #page-auth.overlay-mode{animation:none}
  body.auth-gate-open #main-nav,
  body.auth-gate-open .page.active:not(#page-auth){transition:none}
}
.auth-wrap{display:flex;flex-direction:column;align-items:center;gap:20px;width:100%;max-width:400px;padding:0 16px}
.auth-brand{text-align:center}
.auth-brand-logo{font-size:36px;font-weight:800;letter-spacing:-.5px;color:var(--text1);cursor:pointer}
.auth-brand-logo span{background:linear-gradient(135deg,#a78bfa,#e879f9);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.auth-tagline{color:var(--text2);font-size:13px;margin-top:6px;line-height:1.5}
.auth-box{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:32px;width:100%;animation:authBoxIn .35s ease;box-shadow:0 8px 40px rgba(0,0,0,.3)}
@keyframes authBoxIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.auth-title{font-size:22px;font-weight:700;margin-bottom:4px}
.auth-sub{color:var(--text2);font-size:13px;margin-bottom:24px}
.auth-context-msg{background:rgba(167,139,250,.12);border:1px solid rgba(167,139,250,.3);color:var(--accent);font-size:13px;line-height:1.4;padding:10px 14px;border-radius:var(--radius);margin-bottom:20px}

/* ─── Home page: generous breathing room + visual hierarchy ─────────────── */

/* ─── Jobs page ────────────────────────────────────────────────────────────── */
.jobs-toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:18px}
.jobs-toolbar #jobs-search{flex:1;min-width:200px}
.jobs-toolbar #jobs-count{margin-left:auto;white-space:nowrap}
.jobs-grid{display:flex;flex-direction:column;gap:10px}
.job-card{display:flex;align-items:center;gap:16px;background:var(--bg1);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:var(--radius2);padding:16px 18px;cursor:pointer;transition:border-color var(--transition),transform var(--transition),box-shadow var(--transition)}
.job-card:hover{border-color:var(--border2);border-left-color:var(--accent);transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,.35)}
.job-card-main{flex:1;min-width:0}
.job-card-title{font-size:15px;font-weight:700;color:var(--text1);margin-bottom:3px}
.job-card-company{font-size:13px;color:var(--accent);font-weight:600;margin-bottom:8px}
.job-card-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--text3)}
.job-card-meta .job-remote{background:rgba(63,185,80,.15);color:var(--green);border:1px solid rgba(63,185,80,.3)}
.job-card-desc{font-size:12.5px;color:var(--text2);line-height:1.55;margin-top:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.job-loc,.job-posted,.job-src{white-space:nowrap}
.job-src{color:var(--text3);opacity:.8}
.job-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.job-apply{flex-shrink:0;white-space:nowrap}
/* Job detail modal */
.job-detail-modal{max-width:620px}
.job-detail-title{font-size:20px;font-weight:800;color:var(--text1);padding-right:28px;line-height:1.3}
.job-detail-company{font-size:14px;font-weight:600;color:var(--accent);margin-top:4px}
.job-detail-desc{font-size:13.5px;color:var(--text2);line-height:1.7;white-space:pre-wrap;max-height:46vh;overflow-y:auto;padding:14px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin-bottom:16px}
.job-detail-desc.empty{color:var(--text3);border:none;font-style:italic}
.job-detail-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.pagination{display:flex;align-items:center;justify-content:center;gap:6px;flex-wrap:wrap;margin-top:20px}
@media (max-width:640px){
  .job-card{flex-direction:column;align-items:flex-start;gap:12px}
  .job-apply{width:100%;justify-content:center}
  .jobs-toolbar #jobs-count{margin-left:0}
}
.home-fx{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:0;transition:opacity 1s ease;contain:layout paint}
.home-fx.is-active{opacity:1}
.home-fx-canvas{position:absolute;inset:0;width:100%;height:100%}
/* Floating neon aurora orbs — layered depth via mouse parallax (--px/--py set by JS) */
.home-fx-orb{position:absolute;border-radius:50%;filter:blur(70px);mix-blend-mode:screen;will-change:transform;opacity:.5}
.home-fx-orb-1{width:46vw;height:46vw;left:-8vw;top:-6vh;background:radial-gradient(circle,rgba(167,139,250,.9),transparent 70%);animation:orbFloat 26s ease-in-out infinite alternate;transform:translate(calc(var(--px,0)*-60px),calc(var(--py,0)*-60px))}
.home-fx-orb-2{width:40vw;height:40vw;right:-6vw;top:8vh;background:radial-gradient(circle,rgba(232,121,249,.8),transparent 70%);animation:orbFloat 32s ease-in-out infinite alternate-reverse;transform:translate(calc(var(--px,0)*45px),calc(var(--py,0)*45px))}
.home-fx-orb-3{width:50vw;height:50vw;left:20vw;bottom:-18vh;background:radial-gradient(circle,rgba(56,189,248,.7),transparent 70%);animation:orbFloat 38s ease-in-out infinite alternate;transform:translate(calc(var(--px,0)*30px),calc(var(--py,0)*30px))}
/* Subtle "tron" horizon grid sweeping along the floor */
.home-fx-grid{position:absolute;left:-25%;right:-25%;bottom:-10%;height:60vh;background-image:linear-gradient(rgba(129,180,255,.18) 1px,transparent 1px),linear-gradient(90deg,rgba(129,180,255,.18) 1px,transparent 1px);background-size:46px 46px;transform:perspective(420px) rotateX(68deg);-webkit-mask-image:linear-gradient(to top,#000,transparent 72%);mask-image:linear-gradient(to top,#000,transparent 72%);animation:gridFlow 9s linear infinite;opacity:.35}
@keyframes orbFloat{0%{translate:0 0}100%{translate:3vw 4vh}}
@keyframes gridFlow{0%{background-position:0 0,0 0}100%{background-position:0 46px,46px 0}}

/* Floating holographic feature tokens (DSA / SQL / System Design / … + data fragments) */
/* Own fixed layer ABOVE content so feature chips are clickable; layer ignores
   pointer events, only the chips capture them. Transform/drift driven by JS. */
.home-fx-tokens{position:fixed;inset:0;z-index:2;pointer-events:none;opacity:0;transition:opacity 1s ease}
.home-fx-tokens.is-active{opacity:1}
.home-fx-token{position:absolute;font-size:12px;font-weight:600;color:var(--c);white-space:nowrap;padding:6px 12px;border-radius:999px;border:1px solid var(--c);background:rgba(14,16,24,.5);backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px);box-shadow:0 0 20px -6px var(--c),0 0 0 1px rgba(255,255,255,.03) inset;opacity:.5;will-change:transform}
.home-fx-token.is-code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-weight:500;border-radius:6px;letter-spacing:.5px;opacity:.38;border-style:dashed}
.home-fx-token[data-page]{pointer-events:auto;cursor:pointer;transition:opacity .2s ease,box-shadow .2s ease}
.home-fx-token[data-page]:hover,.home-fx-token[data-page]:focus-visible{opacity:1;box-shadow:0 0 28px -3px var(--c),0 0 0 1px var(--c) inset;outline:none}
@media (max-width:640px){ .home-fx-token{display:none} }

/* Lift all home content above the fixed atmosphere layer */
#page-home{position:relative;z-index:1}
#page-home > *{position:relative;z-index:1}

/* Sci-fi motto — "Anything is possible" */
.home-hero-motto{font-size:13px;font-weight:700;letter-spacing:3px;text-transform:uppercase;margin-bottom:18px;color:var(--text2)}
.home-hero-motto span{background:linear-gradient(90deg,#38bdf8,#a78bfa,#e879f9,#38bdf8);background-size:300% 100%;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;animation:mottoShimmer 6s linear infinite;text-shadow:0 0 22px rgba(167,139,250,.35)}
@keyframes mottoShimmer{0%{background-position:0% 50%}100%{background-position:300% 50%}}

/* Cinematic staggered intro for the hero */
#page-home.active .home-hero-badge{animation:heroRise .7s cubic-bezier(.2,.7,.2,1) both}
#page-home.active .home-hero-motto{animation:heroRise .7s cubic-bezier(.2,.7,.2,1) .05s both}
#page-home.active .home-hero-logo{animation:heroRise .7s cubic-bezier(.2,.7,.2,1) .12s both}
#page-home.active .home-hero-title{animation:heroRise .8s cubic-bezier(.2,.7,.2,1) .2s both}
#page-home.active .home-hero-sub{animation:heroRise .8s cubic-bezier(.2,.7,.2,1) .3s both}
#page-home.active .home-hero-actions{animation:heroRise .8s cubic-bezier(.2,.7,.2,1) .4s both}
@keyframes heroRise{0%{opacity:0;transform:translateY(22px);filter:blur(8px)}100%{opacity:1;transform:translateY(0);filter:blur(0)}}

/* Glassmorphism + 3D tilt on the preview window (tilt vars set by JS) */
.home-preview-window{backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);background:linear-gradient(160deg,rgba(20,22,31,.72),rgba(14,16,24,.55))!important;border:1px solid rgba(167,139,250,.28)!important;box-shadow:0 30px 80px -20px rgba(0,0,0,.7),0 0 0 1px rgba(255,255,255,.04) inset,0 0 60px -20px rgba(167,139,250,.5);transform:perspective(1100px) rotateX(var(--home-tiltx,0deg)) rotateY(var(--home-tilty,0deg));transition:transform .25s ease;animation:floatY 7s ease-in-out infinite}
.home-hero-badge{box-shadow:0 0 24px -6px rgba(167,139,250,.5)}
@keyframes floatY{0%,100%{translate:0 0}50%{translate:0 -10px}}
@media (prefers-reduced-motion:reduce){
  .home-fx-orb,.home-fx-grid,.home-fx-token,.home-preview-window,.home-hero-motto span{animation:none}
  .home-preview-window{transform:none}
  #page-home.active .home-hero-badge,#page-home.active .home-hero-motto,#page-home.active .home-hero-logo,#page-home.active .home-hero-title,#page-home.active .home-hero-sub,#page-home.active .home-hero-actions{animation:none}
}

/* Hero — taller, wider, more impactful */
.home-hero{position:relative;isolation:isolate;text-align:center;padding:96px 20px 64px;max-width:820px;margin:0 auto;animation:fadeIn .5s ease}
.home-hero::before{content:'';position:absolute;inset:-130px -60px auto;height:520px;z-index:-2;pointer-events:none;background:radial-gradient(circle at 22% 28%,rgba(167,139,250,.22),transparent 52%),radial-gradient(circle at 78% 18%,rgba(232,121,249,.16),transparent 50%),radial-gradient(circle at 50% 85%,rgba(56,189,248,.10),transparent 55%);filter:blur(46px);animation:auroraDrift 18s ease-in-out infinite alternate}
.home-hero::after{content:'';position:absolute;inset:-40px -20px auto;height:420px;z-index:-1;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:24px 24px;-webkit-mask-image:radial-gradient(ellipse 60% 65% at 50% 28%,#000 35%,transparent 78%);mask-image:radial-gradient(ellipse 60% 65% at 50% 28%,#000 35%,transparent 78%)}
@keyframes auroraDrift{0%{transform:translate3d(0,0,0) scale(1)}100%{transform:translate3d(22px,-16px,0) scale(1.06)}}
@media (prefers-reduced-motion:reduce){ .home-hero::before{animation:none} }
.home-hero-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(167,139,250,.12);backdrop-filter:blur(6px);border:1px solid rgba(167,139,250,.3);color:var(--accent);font-size:12px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:22px}
.home-hero-logo{font-size:30px;font-weight:800;letter-spacing:-.5px;color:var(--text1);margin-bottom:20px;text-shadow:0 0 28px rgba(167,139,250,.25)}
.home-hero-logo span{background:linear-gradient(135deg,#a78bfa,#e879f9);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.home-hero-title{font-size:40px;font-weight:800;margin-bottom:18px;letter-spacing:-.5px;line-height:1.22}
.home-hero-title span{background:linear-gradient(135deg,#a78bfa,#e879f9);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.home-hero-sub{color:var(--text2);font-size:15px;line-height:1.72;margin-bottom:32px;max-width:580px;margin-left:auto;margin-right:auto}
.home-hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.home-hero-actions .btn-primary{box-shadow:0 10px 30px rgba(109,40,217,.4);transition:all var(--transition);padding:12px 28px;font-size:15px}
.home-hero-actions .btn-primary:hover{box-shadow:0 12px 36px rgba(167,139,250,.5);transform:translateY(-1px)}
.home-hero-actions .btn-ghost{padding:12px 28px;font-size:15px}
.home-hero-actions .btn-ghost:hover{transform:translateY(-1px)}

/* Stats — unified scorecard strip */
.home-stats{display:flex;align-items:stretch;max-width:720px;margin:0 auto 64px;background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);overflow:hidden}
.home-stat{flex:1;background:transparent;border:none;border-radius:0;border-right:1px solid var(--border);padding:28px 16px;text-align:center;transition:background var(--transition)}
.home-stat:last-child{border-right:none}
.home-stat:hover{background:var(--bg2);transform:none}
.home-stat-num{font-size:28px;font-weight:800;background:linear-gradient(135deg,#a78bfa,#e879f9);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.home-stat-label{font-size:12px;color:var(--text2);margin-top:6px}

/* Preview */
.home-preview{max-width:660px;margin:0 auto 64px}

/* Vision card */
.home-vision-card{position:relative;overflow:hidden;padding:36px 40px}
.home-vision-card::after{content:'';position:absolute;top:-50%;right:-8%;width:240px;height:240px;background:radial-gradient(circle,rgba(232,121,249,.08),transparent 70%);pointer-events:none}

/* Section headers: centred with accent underline, generous top margin */
#page-home .section-header{display:block;text-align:center;margin:80px 0 40px;justify-content:unset}
#page-home .section-title{font-size:26px;font-weight:800;letter-spacing:-.3px;display:inline-block;position:relative}
#page-home .section-title::after{content:'';display:block;width:40px;height:3px;border-radius:2px;background:linear-gradient(90deg,#a78bfa,#e879f9);margin:10px auto 0}

/* Feature cards */
.home-features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.home-feature{position:relative;overflow:hidden;background:var(--bg1);border:1px solid var(--border);border-left:3px solid var(--feat-c,var(--accent));border-radius:var(--radius2);padding:26px 22px 22px;transition:border-color var(--transition),transform var(--transition),box-shadow var(--transition)}
.home-feature::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--feat-c,var(--accent)) 0%,var(--feat-c,var(--accent)) 45%,transparent 100%);opacity:.7;box-shadow:0 0 14px -2px var(--feat-c,var(--accent));transition:opacity .25s ease,box-shadow .25s ease}
.home-feature:hover{border-color:var(--border2);border-left-color:var(--feat-c,var(--accent));transform:translateY(-3px);box-shadow:0 16px 40px rgba(0,0,0,.4)}
.home-feature:hover::before{opacity:1;box-shadow:0 0 22px -1px var(--feat-c,var(--accent))}
.home-feature-icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:var(--radius2);font-size:22px;margin-bottom:16px;background:var(--feat-bg,rgba(167,139,250,.16));border:1px solid var(--feat-c,rgba(167,139,250,.35));transition:border-color var(--transition),transform var(--transition),box-shadow var(--transition)}
.home-feature:hover .home-feature-icon{transform:scale(1.06);box-shadow:0 6px 18px var(--feat-bg,rgba(167,139,250,.3))}
.home-feature-title{font-weight:700;font-size:15px;margin-bottom:8px;color:var(--text1);display:flex;align-items:center;justify-content:space-between;gap:8px}
.home-feature-go{color:var(--text3);font-size:13px;opacity:0;transform:translateX(-4px);transition:all var(--transition)}
.home-feature:hover .home-feature-go{opacity:1;transform:translateX(0);color:var(--accent)}
.home-feature-desc{color:var(--text2);font-size:13px;line-height:1.65;padding-top:10px;border-top:1px solid var(--border)}

/* CTA banner */
.home-cta-banner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;background:linear-gradient(135deg,rgba(167,139,250,.14),rgba(232,121,249,.08));border:1px solid rgba(167,139,250,.3);border-radius:var(--radius2);padding:40px;margin-top:80px;margin-bottom:24px}
.home-cta-banner-title{font-size:20px;font-weight:700;margin-bottom:6px}
.home-cta-banner-sub{font-size:14px;color:var(--text2)}

/* ─── Steps: centered process flow ──────────────────────────────────────── */
.home-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;padding-top:8px}
/* Gradient connecting line — adjusted for 52px badge (26px half-width) */
.home-steps::before{content:'';position:absolute;top:34px;left:calc(12.5% + 26px);right:calc(12.5% + 26px);height:2px;background:linear-gradient(90deg,#a78bfa 0%,#e879f9 33%,#60a5fa 66%,#3fb950 100%);opacity:.22}
/* No overflow:hidden — it was causing the counter-based numbers to jitter */
.home-step{position:relative;background:none;border:none;border-radius:0;padding:0 16px 24px;display:flex;flex-direction:column;align-items:center;text-align:center;transition:none}
.home-step:hover{transform:none;box-shadow:none}
/* Icon ring — glowing bordered circle */
.home-step-num{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:50%;background:var(--step-bg,rgba(167,139,250,.12));border:2px solid var(--step-c,var(--accent));box-shadow:0 0 0 5px var(--bg0),0 0 22px var(--step-bg,rgba(167,139,250,.25));font-size:22px;margin-bottom:18px;position:relative;z-index:1;flex-shrink:0}
.home-step:nth-child(1){--step-c:#a78bfa;--step-bg:rgba(167,139,250,.18)}
.home-step:nth-child(2){--step-c:#e879f9;--step-bg:rgba(232,121,249,.16)}
.home-step:nth-child(3){--step-c:#60a5fa;--step-bg:rgba(96,165,250,.16)}
.home-step:nth-child(4){--step-c:#3fb950;--step-bg:rgba(63,185,80,.15)}
.home-step-body{padding-top:0}
.home-step-title{font-weight:700;font-size:14.5px;margin-bottom:8px;color:var(--text1)}
.home-step-desc{color:var(--text2);font-size:12px;line-height:1.65}

/* Scroll-reveal: sections fade/slide into view as the user scrolls the Home page */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){ .reveal{opacity:1;transform:none;transition:none} }

/* "Practice session" product preview mockup */
.home-preview{max-width:620px;margin:0 auto 28px}
.home-preview-window{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);overflow:hidden;box-shadow:0 24px 64px rgba(0,0,0,.45);transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition)}
.home-preview-window:hover{transform:translateY(-3px);border-color:var(--border2);box-shadow:0 30px 76px rgba(109,40,217,.22)}
.home-preview-bar{display:flex;align-items:center;gap:6px;padding:12px 16px;background:var(--bg2);border-bottom:1px solid var(--border)}
.home-preview-bar span{width:10px;height:10px;border-radius:50%;background:var(--border2)}
.home-preview-bar span:nth-child(1){background:#f85149}
.home-preview-bar span:nth-child(2){background:#d29922}
.home-preview-bar span:nth-child(3){background:#3fb950}
.home-preview-bar-label{margin-left:8px;font-size:11px;color:var(--text3);letter-spacing:.3px}
.home-preview-body{padding:20px 22px;transition:opacity .35s ease,transform .35s ease}
.home-preview-body.is-swapping{opacity:0;transform:translateY(6px)}
@media (prefers-reduced-motion:reduce){ .home-preview-body{transition:none} .home-preview-body.is-swapping{opacity:1;transform:none} }
.home-preview-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:16px}
.home-preview-q-title{font-weight:700;font-size:16px;margin-bottom:8px;color:var(--text1)}
.home-preview-q-tags{display:flex;gap:6px;flex-wrap:wrap}
.home-preview-hint{font-size:12.5px;color:var(--text2);line-height:1.6;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;margin-bottom:8px}
.home-preview-hint strong{color:var(--text1)}
.home-preview-hint.dim{color:var(--text3);position:relative;overflow:hidden}
.home-preview-hint.dim strong{color:var(--text2)}
.home-preview-hint.dim::after{content:'';position:absolute;inset:0;background:linear-gradient(100deg,transparent 30%,rgba(167,139,250,.06) 50%,transparent 70%)}
.home-preview-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:14px;padding-top:14px;border-top:1px solid var(--border);font-size:12px;color:var(--text2)}
.home-preview-foot strong{color:var(--text1)}

@media (max-width:760px){
  .home-stats{grid-template-columns:repeat(2,1fr)}
  .home-steps{grid-template-columns:repeat(2,1fr);gap:0}
  .home-steps::before{display:none}
  .home-features{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:520px){
  .home-features{grid-template-columns:1fr}
}
@media (max-width:640px){
  .home-hero-title{font-size:22px}
  .home-cta-banner{flex-direction:column;align-items:flex-start}

  /* Stats → unified "scoreboard" strip with internal divider lines */
  .home-stats{grid-template-columns:repeat(2,1fr);gap:0;max-width:380px;background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);overflow:hidden}
  .home-stat{background:transparent;border:none;border-radius:0;padding:16px 8px}
  .home-stat:hover{transform:none;border-color:transparent}
  .home-stat:nth-child(odd){border-right:1px solid var(--border)}
  .home-stat:nth-child(-n+2){border-bottom:1px solid var(--border)}

  /* Steps → vertical timeline: icon badges linked by a gradient line */
  .home-steps{grid-template-columns:1fr;gap:0;position:relative;padding-top:0}
  .home-steps::before{content:'';position:absolute;left:20px;top:8px;bottom:8px;width:2px;height:auto;background:linear-gradient(180deg,#a78bfa,#e879f9,#60a5fa,#3fb950);opacity:.3}
  .home-step{display:flex;align-items:flex-start;gap:14px;background:transparent;border:none;border-radius:0;padding:14px 4px;flex-direction:row;text-align:left}
  .home-step:hover{transform:none;box-shadow:none}
  /* Reset badge to compact size for the timeline */
  .home-step-num{width:28px;height:28px;font-size:15px;margin-bottom:0;border:none;box-shadow:0 0 0 4px var(--bg0);flex-shrink:0}
  .home-step-body{padding-top:2px}

  /* Features → horizontal list rows: icon left, title & description right */
  .home-features{grid-template-columns:1fr;gap:10px}
  .home-feature{display:flex;align-items:flex-start;gap:14px;padding:16px}
  .home-feature::before{display:none}
  .home-feature:hover{transform:none}
  .home-feature-icon{flex-shrink:0;width:42px;height:42px;font-size:19px;margin-bottom:0}
  .home-feature:hover .home-feature-icon{transform:none;box-shadow:none}
  .home-feature-body{flex:1;min-width:0}
  .home-feature-desc{border-top:none;padding-top:4px}
}

.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:500;color:var(--text2);margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-error{color:var(--red);font-size:12px;margin-top:4px;display:flex;align-items:center;gap:4px}

/* ─── Field info button + rules panel ───────────────────────────────────── */
.field-info-btn{width:16px;height:16px;border-radius:50%;background:var(--bg3);border:1px solid var(--border2);color:var(--text3);font-size:10px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all var(--transition);padding:0;line-height:1;flex-shrink:0}
.field-info-btn:hover,.field-info-btn.active{background:var(--accent2);border-color:var(--accent);color:#fff}
.field-rules{display:none;flex-direction:column;gap:5px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;margin-bottom:8px}
.field-rules.visible{display:flex}
.field-rule{font-size:12px;color:var(--text2);display:flex;align-items:center;gap:7px;transition:color .2s}
.field-rule::before{content:'○';font-size:9px;color:var(--text3);flex-shrink:0;transition:color .2s}
.field-rule.valid{color:var(--green)}
.field-rule.valid::before{content:'✓';color:var(--green)}
.field-rule.invalid{color:var(--red)}
.field-rule.invalid::before{content:'✗';color:var(--red)}
.auth-switch{text-align:center;margin-top:16px;font-size:13px;color:var(--text2)}
.btn-loading{position:relative;pointer-events:none;opacity:.8}
.btn-loading::after{content:'';position:absolute;right:14px;top:50%;transform:translateY(-50%);width:14px;height:14px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}

/* ─── Dashboard ─────────────────────────────────────────── */
.stat-card{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:20px;display:flex;flex-direction:column;gap:4px}
.stat-value{font-size:32px;font-weight:700;line-height:1}
.stat-label{color:var(--text2);font-size:13px;margin-top:4px}
.stat-sub{font-size:12px;color:var(--text3);margin-top:2px}
.progress-ring{display:inline-block;position:relative}
.progress-bar{height:8px;background:var(--bg3);border-radius:4px;overflow:hidden;margin-top:8px}
.progress-fill{height:100%;border-radius:4px;transition:width .5s ease}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.section-title{font-size:16px;font-weight:600}
.section-sub{color:var(--text2);font-size:12px}

/* ─── DSA ─────────────────────────────────────────────── */
.q-title{font-weight:500;color:var(--text1);font-size:13px}
.q-title:hover{color:var(--accent)}
.tag-list{display:flex;flex-wrap:wrap;gap:4px}
.company-tag{display:inline-block;background:var(--bg3);color:var(--text2);border-radius:var(--radius);padding:2px 6px;font-size:11px}
.bookmark-btn{background:none;border:none;font-size:16px;cursor:pointer;color:var(--text3);transition:color var(--transition),transform var(--transition);padding:2px}
.bookmark-btn.active{color:var(--yellow)}
.bookmark-btn:hover{color:var(--yellow);transform:scale(1.2)}
@keyframes bookmarkPop{0%,100%{transform:scale(1)}40%{transform:scale(1.5)}70%{transform:scale(.9)}}
.bookmark-btn.pop{animation:bookmarkPop .3s ease}
.solved-check{color:var(--green);font-size:14px}
.topic-source{font-size:11px;color:var(--text3)}

/* ─── Skeleton loader ─────────────────────────────────────── */
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
.skel{background:linear-gradient(90deg,var(--bg2) 25%,var(--bg3) 50%,var(--bg2) 75%);background-size:200% 100%;animation:shimmer 1.4s infinite;border-radius:3px;display:inline-block;height:11px;vertical-align:middle}

/* ─── Row fade-in ─────────────────────────────────────────── */
@keyframes rowFadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
.clickable-row{opacity:1}
.clickable-row.animate-in{opacity:0;animation:rowFadeIn .18s ease forwards}
.clickable-row:hover td{background:rgba(167,139,250,.05)!important;transition:background .12s}
.q-title{cursor:pointer;overflow-wrap:break-word;word-break:break-word}

/* ─── Responsive table columns ───────────────────────────── */
@media(max-width:768px){.col-hide-md{display:none}}
@media(max-width:480px){.col-hide-sm{display:none}}

/* ─── Table wrap — hide scrollbar, keep scroll ────────────── */
.table-wrap{scrollbar-width:none;-ms-overflow-style:none}
.table-wrap::-webkit-scrollbar{display:none}
@media(prefers-reduced-motion:reduce){.clickable-row.animate-in{opacity:1;animation:none}}

/* ─── SQL Playground ────────────────────────────────────── */
.sql-editor{width:100%;min-height:110px;font-family:'JetBrains Mono','Fira Code',Consolas,monospace;font-size:13px;line-height:1.6;resize:vertical;background:var(--bg0);border:1px solid var(--border);color:var(--text1);border-radius:var(--radius);padding:10px 12px;tab-size:2}
.sql-editor:focus{border-color:var(--accent)}
.sql-run-output{margin-top:12px;overflow-x:auto}
.sql-verdict{padding:10px 14px;border-radius:var(--radius);font-size:13px;font-weight:600;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.sql-verdict-pass{background:rgba(34,197,94,.1);color:var(--green);border:1px solid rgba(34,197,94,.25)}
.sql-verdict-fail{background:rgba(248,113,113,.1);color:var(--red);border:1px solid rgba(248,113,113,.25)}
.sql-verdict-unknown{background:var(--bg2);color:var(--text2);border:1px solid var(--border);font-weight:400}
.sql-run-output table{width:100%;border-collapse:collapse;font-size:12px;min-width:0}
.sql-run-output th{background:var(--bg2);color:var(--text2);padding:7px 12px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap;font-size:11px;text-transform:uppercase;letter-spacing:.4px}
.sql-run-output td{padding:7px 12px;border-bottom:1px solid var(--border);color:var(--text1);font-family:'JetBrains Mono','Fira Code',monospace;font-size:12px}
.sql-run-output tr:last-child td{border-bottom:none}
.sql-run-output tr:hover td{background:var(--bg2)}
.sql-error{color:var(--red);font-size:13px;padding:10px 12px;background:rgba(248,113,113,.08);border-radius:var(--radius);border:1px solid rgba(248,113,113,.2);font-family:'JetBrains Mono','Fira Code',monospace}
.sql-success-empty{color:var(--green);font-size:13px;padding:8px 0}
.sql-row-count{font-size:11px;color:var(--text3);margin-top:6px}

/* ─── System Design ─────────────────────────────────────── */
.topic-card{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:16px;cursor:pointer;transition:all var(--transition)}
.topic-card:hover{border-color:var(--accent2);transform:translateY(-1px)}
.topic-card-title{font-weight:600;font-size:14px;margin-bottom:6px}
.topic-card-desc{color:var(--text2);font-size:12px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.topic-meta{display:flex;align-items:center;gap:8px;margin-top:10px}
.est-time{color:var(--text3);font-size:11px}

/* ─── Company ─────────────────────────────────────────── */
.company-card{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:20px;cursor:pointer;transition:all var(--transition);display:flex;flex-direction:column;gap:12px;min-height:160px}
.company-card:hover{border-color:var(--accent2);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.25)}
.company-card-top{display:flex;align-items:flex-start;gap:12px}
.company-initial{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:800;color:#fff;flex-shrink:0;letter-spacing:-.5px}
.company-name{font-size:15px;font-weight:700;line-height:1.3;word-break:break-word}
.company-meta{color:var(--text2);font-size:11px;margin-top:3px;line-height:1.5}
.company-card-badges{display:flex;flex-wrap:wrap;gap:5px;min-height:22px}
.company-card-stats{margin-top:auto;display:flex;gap:16px;font-size:12px;color:var(--text3);padding-top:10px;border-top:1px solid var(--border)}
.company-card-stats span{display:flex;align-items:center;gap:4px}
.round-badge{display:inline-flex;align-items:center;gap:4px;background:var(--bg3);border-radius:var(--radius);padding:4px 10px;font-size:12px;color:var(--text2)}
.roadmap-step{display:flex;gap:12px;margin-bottom:16px}
.step-num{width:28px;height:28px;border-radius:50%;background:var(--accent2);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0}
.step-content{flex:1}
.step-title{font-weight:600;font-size:13px}
.step-desc{color:var(--text2);font-size:12px;margin-top:2px}
.step-days{color:var(--text3);font-size:11px;margin-top:2px}

/* ─── Detail views ─────────────────────────────────────── */
.detail-header{display:flex;align-items:flex-start;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.detail-title{font-size:22px;font-weight:700;line-height:1.3}
.detail-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:8px}
.detail-body{color:var(--text1);line-height:1.8;font-size:14px;overflow-wrap:break-word;word-break:break-word}
.detail-body h2,.detail-body h3{margin:16px 0 8px}
.detail-body p{margin-bottom:12px;overflow-wrap:break-word;word-break:break-word}
.hints-card{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);overflow:hidden;margin-top:16px}
.hints-header{display:flex;align-items:center;gap:10px;padding:14px 18px;cursor:pointer;user-select:none;transition:background var(--transition)}
.hints-header:hover{background:var(--bg2)}
.hints-chevron{margin-left:auto;font-size:12px;color:var(--text3)}
.hints-body{padding:0 18px 16px;display:flex;flex-direction:column;gap:10px}
.hint-tier{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.hint-reveal-btn{width:100%;display:flex;align-items:center;gap:8px;padding:10px 14px;background:var(--bg2);border:none;color:var(--text1);font:inherit;font-size:13px;font-weight:500;cursor:pointer;text-align:left;transition:background var(--transition)}
.hint-reveal-btn:hover{background:var(--bg3)}
.hint-tier-label{margin-left:auto;font-size:11px;color:var(--text3);font-weight:400;background:var(--bg3);padding:2px 8px;border-radius:10px}
.hint-content{padding:14px;border-top:1px solid var(--border);background:var(--bg0)}
.detail-body ul,.detail-body ol{padding-left:20px;margin-bottom:12px}
.detail-body li{overflow-wrap:break-word;word-break:break-word}
.detail-body code{background:var(--bg2);padding:2px 6px;border-radius:4px;font-family:'JetBrains Mono','Fira Code',monospace;font-size:12px;word-break:break-all}
.detail-body pre{background:transparent;padding:0;margin:4px 0;overflow-x:auto;white-space:pre-wrap;font-family:inherit;font-size:inherit;border:none;max-width:100%}
.detail-body pre code{background:none;padding:0;font-family:inherit;font-size:inherit;word-break:normal}
.detail-body table{width:100%;border-collapse:collapse;display:block;overflow-x:auto;margin-bottom:12px;max-width:100%}
.detail-body table th,.detail-body table td{border:1px solid var(--border);padding:8px 12px;font-size:13px;white-space:nowrap}
.detail-body table th{background:var(--bg2);font-weight:600}
.sidebar-box{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:16px;margin-bottom:16px}
.sidebar-box h4{font-size:13px;font-weight:600;color:var(--text2);margin-bottom:10px;text-transform:uppercase;letter-spacing:.5px}
.detail-layout{display:grid;grid-template-columns:1fr 280px;gap:20px;align-items:start}
.detail-layout>div{min-width:0;overflow-wrap:break-word;word-break:break-word}
.resource-item{display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid var(--border)}
.resource-item:last-child{border-bottom:none}

/* ─── Admin ─────────────────────────────────────────────── */
.admin-stat{background:var(--bg2);border-radius:var(--radius);padding:16px;text-align:center}
.admin-stat-val{font-size:28px;font-weight:700;color:var(--accent)}
.admin-stat-label{color:var(--text2);font-size:12px;margin-top:2px}

/* ─── Modals ─────────────────────────────────────────────── */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:200;align-items:center;justify-content:center;padding:20px}
.modal-overlay.open{display:flex}
.modal{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:24px;width:calc(100% - 32px);max-width:540px;max-height:90vh;overflow-y:auto;position:relative}
.modal-title{font-size:18px;font-weight:600;margin-bottom:16px}
.modal-close{position:absolute;top:16px;right:16px;background:none;border:none;color:var(--text2);font-size:20px;cursor:pointer;line-height:1}
.modal-close:hover{color:var(--text1)}

/* ─── Toast ─────────────────────────────────────────────── */
#toast-container{position:fixed;bottom:24px;right:24px;z-index:999;display:flex;flex-direction:column;gap:8px}
.toast{background:var(--bg3);border:1px solid var(--border2);color:var(--text1);padding:10px 16px;border-radius:var(--radius);font-size:13px;box-shadow:var(--shadow);animation:slideIn .2s ease;max-width:320px}
.toast.success{border-left:3px solid var(--green)}
.toast.error{border-left:3px solid var(--red)}
.toast.info{border-left:3px solid var(--accent)}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* ─── Empty state ─────────────────────────────────────────── */
.empty{text-align:center;padding:60px 20px;color:var(--text2)}
.empty-icon{font-size:48px;margin-bottom:12px}
.empty-title{font-size:16px;font-weight:600;color:var(--text1);margin-bottom:6px}
.empty-sub{font-size:13px}

/* ─── Loading ─────────────────────────────────────────────── */
.loading{display:flex;align-items:center;justify-content:center;padding:60px;color:var(--text2)}
.spinner{width:24px;height:24px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite;margin-right:10px}
@keyframes spin{to{transform:rotate(360deg)}}
.skeleton{background:linear-gradient(90deg,var(--bg2) 25%,var(--bg3) 50%,var(--bg2) 75%);background-size:200% 100%;animation:shimmer 1.4s infinite;border-radius:var(--radius);height:16px;margin-bottom:8px}

/* ─── Search hero ─────────────────────────────────────────── */
.search-hero{background:linear-gradient(135deg,#0d1b2e 0%,#0d1117 100%);border:1px solid var(--border);border-radius:var(--radius2);padding:40px;text-align:center;margin-bottom:24px;display:flex;flex-direction:column;align-items:center}
.search-hero h1{font-size:28px;font-weight:700;margin-bottom:8px}
.search-hero p{color:var(--text2);margin-bottom:20px}
.search-big{display:flex;gap:8px;max-width:600px;width:100%;margin:0 auto}
.search-big input{flex:1;font-size:15px;padding:12px 16px}
/* ─── Password toggle ────────────────────────────────────── */
.pw-wrap{position:relative;display:flex;align-items:center}
.pw-wrap input{width:100%;padding-right:40px}
.pw-toggle{position:absolute;right:10px;background:none;border:none;color:var(--text3);cursor:pointer;font-size:16px;padding:4px;line-height:1;transition:color var(--transition)}
.pw-toggle:hover{color:var(--text1)}
.search-big button{padding:12px 20px;justify-content:center}

/* ─── Experience ─────────────────────────────────────────── */
.exp-card{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:16px;margin-bottom:12px}
.exp-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.exp-outcome{font-size:12px;font-weight:600}
.outcome-Offered{color:var(--green)}
.outcome-Rejected{color:var(--red)}
.outcome-Pending{color:var(--yellow)}
.outcome-Declined{color:var(--text2)}
.round-timeline{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.round-chip{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:4px 10px;font-size:11px;color:var(--text2)}

/* ─── Profile ─────────────────────────────────────────────── */
.profile-hero{display:flex;align-items:center;gap:20px;padding:24px;background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);margin-bottom:20px}
.avatar{width:72px;height:72px;border-radius:50%;background:var(--accent2);display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:700;color:#fff;flex-shrink:0}
.heatmap{display:flex;flex-wrap:wrap;gap:2px;margin-top:8px}
.heat-cell{width:12px;height:12px;border-radius:2px;background:var(--bg3)}
.heat-1{background:#0d2a14}.heat-2{background:#196127}.heat-3{background:#239a3b}.heat-4{background:var(--green)}

/* ─── Hamburger ──────────────────────────────────────────── */
.nav-hamburger{display:none;background:none;color:var(--text1);font-size:22px;line-height:1;padding:4px 8px;border-radius:var(--radius);flex-shrink:0}
.nav-hamburger:hover{background:var(--bg2)}
/* ─── View toggle (list ↔ card) ─────────────────────────────── */
.view-toggle{display:flex;gap:2px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:2px;flex-shrink:0}
.view-toggle-btn{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:3px;font-size:15px;background:none;border:none;color:var(--text3);cursor:pointer;transition:all var(--transition)}
.view-toggle-btn:hover{color:var(--text1)}
.view-toggle-btn.active{background:var(--accent2);color:#fff;box-shadow:0 1px 4px rgba(0,0,0,.3)}

/* ─── Question card grid ─────────────────────────────────────── */
.q-cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.q-card{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:16px;cursor:pointer;transition:border-color var(--transition),transform var(--transition),box-shadow var(--transition);display:flex;flex-direction:column;gap:10px}
.q-card:hover{border-color:var(--border2);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.35)}
.q-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}
.q-card-title{font-weight:600;font-size:13.5px;color:var(--text1);line-height:1.45;flex:1}
.q-card-tags{display:flex;flex-wrap:wrap;gap:4px;min-height:18px}
.q-card-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:auto;padding-top:10px;border-top:1px solid var(--border);font-size:11px;color:var(--text3)}
@media(max-width:640px){.q-cards-grid{grid-template-columns:1fr}}
@media(max-width:960px) and (min-width:641px){.q-cards-grid{grid-template-columns:repeat(2,1fr)}}

/* ─── Filter Toggle ──────────────────────────────────────── */
.filter-toggle-btn{display:none;margin-bottom:12px}
/* ─── Responsive ─────────────────────────────────────────── */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .page-layout{grid-template-columns:200px 1fr}
  .nav-search{width:150px}
  .guide-modal{max-width:700px}
}
@media(max-width:768px){
  .nav{padding:0 16px}
  .nav-hamburger{display:flex;align-items:center;justify-content:center}
  .nav-links{display:none;flex-direction:column;gap:2px;position:fixed;top:56px;left:0;right:0;background:var(--bg1);border-bottom:1px solid var(--border);padding:8px 12px 14px;z-index:99;box-shadow:0 8px 24px rgba(0,0,0,.5)}
  .nav-links.open{display:flex}
  .nav-links .nav-link{padding:10px 12px;font-size:14px;text-align:left;width:100%;display:block;border-radius:var(--radius)}
  .nav-search{display:none;width:120px}
  .nav-right{gap:6px}
  #sd-tabs{display:none}
  .sd-cat-select-mobile{display:block!important}
  .main{padding:16px}
  .page-layout{grid-template-columns:1fr}
  .sidebar{display:none;position:static;top:0;margin-bottom:16px}
  .sidebar.open{display:block}
  .filter-toggle-btn{display:inline-flex}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
  .detail-layout{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .profile-hero{flex-direction:column;text-align:center;padding:16px}
  .avatar{margin:0 auto}
  .search-hero{padding:24px 16px}
  .search-hero h1{font-size:20px}
  .search-big{flex-direction:column}
  .search-big button{width:100%;justify-content:center}
  .section-header{flex-wrap:wrap;gap:8px}
  .modal-overlay{padding:0;align-items:flex-end}
  .modal{border-radius:var(--radius2) var(--radius2) 0 0;max-height:88vh;width:100%}
  #toast-container{left:12px;right:12px;bottom:12px}
  .toast{max-width:100%}
  th{font-size:11px;padding:8px 10px}
  td{padding:8px 10px;font-size:13px}
  .guide-overlay{padding:0;align-items:flex-end}
  .guide-modal{border-radius:var(--radius2) var(--radius2) 0 0;max-height:88vh;overflow-y:auto;padding:22px 18px;width:100%;max-width:100%}
  .guide-levels{grid-template-columns:repeat(2,1fr)}
  .roadmap-hero{grid-template-columns:1fr;gap:12px}
  .level-card{padding:16px 12px}
  .level-emoji{font-size:30px}
  .week-card-title{font-size:13px}
  .helper-bubble{bottom:20px;right:16px}
}
@media(max-width:480px){
  .nav{padding:0 12px}
  .nav-logo{font-size:15px}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
  .main{padding:12px}
  input,select,textarea{font-size:16px}
  .card{padding:14px}
  .auth-box{max-width:100%;padding:20px 16px}
  .search-hero{padding:20px 12px}
  .search-hero h1{font-size:18px}
  .stat-value{font-size:24px}
  .detail-title{font-size:18px}
  .modal{max-height:92vh;max-width:100%;padding:16px}
  input,select,textarea{min-height:44px}
  .btn{min-height:44px}
  .page-btn{width:28px;height:28px;font-size:12px}
  .btn-sm{padding:5px 10px;min-height:32px}
  .tab{padding:8px 12px;font-size:12px}
  th,td{padding:8px;font-size:12px}
  .guide-levels{grid-template-columns:1fr}
  .guide-modal{padding:16px 12px;max-height:92vh}
  .guide-modal-title{font-size:17px}
  .guide-modal-hdr{margin-bottom:2px}
  .level-card{flex-direction:row;text-align:left;padding:12px 14px;gap:12px}
  .level-emoji{font-size:26px;flex-shrink:0}
  .level-card strong{font-size:14px}
  .level-badge{font-size:10px;padding:2px 8px}
  .week-hdr{padding:11px 12px;gap:10px}
  .week-num-badge{width:26px;height:26px;font-size:10px}
  .week-card-title{font-size:12px}
  .week-body{padding:4px 12px 14px}
  .roadmap-hero{padding:14px}
  .guide-tip{font-size:11px}
  .wk-section-lbl{margin:12px 0 6px}
  .helper-bubble{bottom:16px;right:12px}
  .guide-fab{width:46px;height:46px;font-size:19px}
  .guide-close-btn{font-size:22px}
}
/* ─── System Design Detail ───────────────────────────────── */
.sd-section{margin-bottom:16px;max-width:100%;overflow:hidden}
.sd-section-hdr{display:flex;align-items:center;gap:10px;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.sd-section-hdr .sd-icon{font-size:20px;line-height:1;flex-shrink:0}
.sd-section-hdr h3{font-size:14px;font-weight:700;color:var(--text1);text-transform:uppercase;letter-spacing:.5px;overflow-wrap:break-word;word-break:break-word}
.sd-req-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:6px}
.sd-req-list li{padding:8px 12px;background:var(--bg2);border-radius:var(--radius);font-size:13px;color:var(--text1);display:flex;gap:10px;align-items:flex-start;overflow-wrap:break-word;word-break:break-word}
.sd-req-list li .req-bullet{flex-shrink:0;font-size:12px;margin-top:1px}
.sd-req-list li span:last-child{min-width:0;overflow-wrap:break-word;word-break:break-word;flex:1}
.sd-req-list.nfr li .req-bullet{color:var(--yellow)}
.sd-req-list.fr li .req-bullet{color:var(--green)}
.sd-req-list.fq li .req-bullet{color:var(--accent)}

/* ─── Forgot-password slap animation ─────────────────────────────────────── */
@keyframes slapIn{0%{transform:translateX(-80px) rotate(-30deg);opacity:0}60%{transform:translateX(8px) rotate(4deg);opacity:1}80%{transform:translateX(-4px) rotate(-2deg)}100%{transform:translateX(0) rotate(0);opacity:1}}
@keyframes slapBounce{0%,100%{transform:translateY(0)}30%{transform:translateY(-14px)}55%{transform:translateY(-6px)}75%{transform:translateY(-10px)}90%{transform:translateY(-4px)}}
#auth-slap.visible #slap-emoji{animation:slapIn .45s cubic-bezier(.22,.68,0,1.2) forwards,slapBounce .7s ease .45s forwards}

/* ─── Responsive fixes for new features ──────────────────────────────────── */

/* Dashboard — Continue Your Journey grid */
.continue-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.continue-grid>button{min-width:0;overflow:hidden}

/* SQL Playground keyboard hint */
.sql-kbd-hint{font-size:11px;color:var(--text3);margin-left:auto;white-space:nowrap}

/* SQL verdict — wrap long messages */
.sql-verdict{flex-wrap:wrap}

@media(max-width:768px){
  /* Dashboard continue grid: 1 col on mobile */
  .continue-grid{grid-template-columns:1fr}
  /* Helper card: use viewport width so both text lines fit on one line each */
  .helper-card{max-width:min(230px,calc(100vw - 28px))}
  /* Hide Ctrl+Enter hint on touch devices */
  .sql-kbd-hint{display:none}
}

@media(max-width:480px){
  /* Helper card: compact on small phones — still wide enough for 2 clean lines */
  .helper-card{max-width:min(210px,calc(100vw - 24px));padding:10px 30px 10px 10px;gap:8px}
  .helper-avatar{width:36px;height:36px;font-size:18px}
  .helper-greeting{font-size:12px}
  .helper-sub{font-size:11px}
  /* Auth OTP input: tighter letter-spacing on small screens */
  #otp-code,#reset-otp{letter-spacing:0.3em;font-size:1.3rem}
  /* SQL playground: smaller editor on phones */
  .sql-editor{min-height:80px;font-size:12px}
  .sql-run-output th,.sql-run-output td{padding:5px 8px;font-size:11px}
}

/* ─── Profile redesign ────────────────────────────────────────────────────── */
.profile-banner{background:linear-gradient(135deg,#1e1040 0%,#0e1018 60%);border:1px solid rgba(167,139,250,.25);border-radius:var(--radius2);padding:32px 28px;display:flex;align-items:center;gap:24px;margin-bottom:20px;position:relative;overflow:hidden}
.profile-banner::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 0% 50%,rgba(109,40,217,.25) 0%,transparent 60%);pointer-events:none}
.profile-avatar-xl{width:84px;height:84px;border-radius:50%;background:linear-gradient(135deg,#a78bfa,#6d28d9);border:3px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:36px;font-weight:700;color:#fff;flex-shrink:0;position:relative;z-index:1;box-shadow:0 0 32px rgba(109,40,217,.5)}
.profile-banner-info{flex:1;min-width:0;position:relative;z-index:1}
.profile-banner-name{font-size:22px;font-weight:800;color:#fff;letter-spacing:-.3px}
.profile-banner-email{font-size:13px;color:rgba(255,255,255,.6);margin-top:2px}
.profile-banner-meta{display:flex;align-items:center;gap:8px;margin-top:10px;flex-wrap:wrap}
.profile-since{font-size:12px;color:rgba(255,255,255,.5)}

.profile-details-card{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);overflow:hidden}
.profile-details-hdr{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border)}
.profile-details-hdr h3{font-size:15px;font-weight:700;color:var(--text1)}
.profile-fields-grid{display:grid;grid-template-columns:1fr 1fr;gap:0}
.profile-field-row{display:flex;align-items:flex-start;gap:14px;padding:16px 24px;border-bottom:1px solid var(--border)}
.profile-field-row:last-child{border-bottom:none}
/* Profile certifications list */
.profile-cert-list{display:flex;flex-direction:column}
.profile-cert-item{display:flex;align-items:center;gap:14px;padding:16px 24px;border-bottom:1px solid var(--border)}
.profile-cert-item:last-child{border-bottom:none}
.profile-cert-medal{font-size:22px;flex-shrink:0}
.profile-cert-body{flex:1;min-width:0}
.profile-cert-name{font-size:14px;font-weight:700;color:var(--text1)}
.profile-cert-meta{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-size:12px;margin-top:4px}
.profile-field-icon{font-size:18px;flex-shrink:0;margin-top:1px;width:24px;text-align:center}
.profile-field-body{flex:1;min-width:0}
.profile-field-label{font-size:10px;font-weight:700;color:var(--text3);text-transform:uppercase;letter-spacing:.6px;margin-bottom:3px}
.profile-field-val{font-size:14px;color:var(--text1);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.profile-field-val.empty{color:var(--text3);font-weight:400;font-style:italic}
.profile-field-input{width:100%;background:var(--bg2);border:1px solid var(--border);color:var(--text1);border-radius:var(--radius);padding:7px 10px;font-size:13px;font:inherit}
.profile-field-input:focus{border-color:var(--accent);outline:none}
.phone-field{display:flex;gap:8px;align-items:stretch;width:100%}
.phone-field .phone-code-sel{flex:0 0 160px;width:160px;min-width:0;margin-bottom:0}
.phone-field .phone-num-inp{flex:1 1 auto;width:auto;min-width:0;margin-bottom:0}
@media(max-width:400px){
  .phone-field{flex-direction:column;gap:6px}
  .phone-field .phone-code-sel{flex:none;width:100%}
}
.profile-save-bar{display:flex;gap:8px;padding:16px 24px;border-top:1px solid var(--border);background:var(--bg2)}

@media(max-width:768px){
  .profile-banner{flex-direction:column;text-align:center;padding:24px 16px}
  .profile-banner::before{display:none}
  .profile-banner-meta{justify-content:center}
  .profile-fields-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .profile-avatar-xl{width:68px;height:68px;font-size:28px}
  .profile-banner-name{font-size:18px}
  .profile-field-row{padding:12px 16px}
  .profile-details-hdr{padding:16px}
  .profile-save-bar{padding:12px 16px}
}

/* ─── Profile section navigation ─────────────────────────────────────────── */
.profile-nav{display:flex;gap:3px;border-bottom:1px solid var(--border);margin-bottom:20px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.profile-nav::-webkit-scrollbar{display:none}
.profile-nav-tab{padding:9px 16px;font-size:13px;font-weight:500;color:var(--text2);background:transparent;border:none;border-bottom:2px solid transparent;margin-bottom:-1px;cursor:pointer;white-space:nowrap;transition:all var(--transition);font:inherit}
.profile-nav-tab:hover{color:var(--text1)}
.profile-nav-tab.active{color:var(--accent);border-bottom-color:var(--accent)}
.profile-nav-select{display:none;width:100%;margin-bottom:16px;font-size:13px}
.profile-section{display:none}.profile-section.active{display:block}

/* Profile completeness bar */
.profile-strength-bar{height:6px;background:var(--bg3);border-radius:3px;overflow:hidden;margin-top:6px}
.profile-strength-fill{height:100%;border-radius:3px;transition:width .5s ease}

/* ─── Profile Overview Compact Grid ──────────────────────────────────────── */
/* Base: 3 columns on large screens */
.pov-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--border);border-radius:var(--radius2);overflow:hidden;background:var(--bg1)}
.pov-row{display:flex;align-items:center;gap:10px;padding:11px 16px;border-bottom:1px solid var(--border);border-right:1px solid var(--border);transition:background .12s}
.pov-row:hover{background:var(--bg2)}
.pov-row:nth-child(3n){border-right:none}          /* last col: no right border */
.pov-row:nth-last-child(-n+3){border-bottom:none}  /* last row: no bottom border */
.pov-icon{font-size:15px;width:20px;text-align:center;flex-shrink:0;line-height:1}
.pov-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}
.pov-label{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text3);white-space:nowrap}
.pov-val{font-size:13px;font-weight:500;color:var(--text1);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pov-val.empty{color:var(--text3);font-style:italic;font-weight:400}
a.pov-val{color:var(--accent);text-decoration:none}
a.pov-val:hover{text-decoration:underline}

/* Tablet: 2 columns */
@media(max-width:1024px){
  .pov-grid{grid-template-columns:repeat(2,1fr)}
  .pov-row{border-right:1px solid var(--border);border-bottom:1px solid var(--border)}
  .pov-row:nth-child(3n){border-right:1px solid var(--border)}   /* reset 3-col */
  .pov-row:nth-child(2n){border-right:none}                       /* col 2: no right */
  .pov-row:nth-last-child(-n+3){border-bottom:1px solid var(--border)} /* reset 3-col */
  .pov-row:nth-last-child(-n+2){border-bottom:none}               /* last row */
}

/* Mobile: 1 column */
@media(max-width:768px){
  .profile-nav{display:none}
  .profile-nav-select{display:block}
  .pov-grid{grid-template-columns:1fr}
  .pov-row{border-right:none;border-bottom:1px solid var(--border)}
  .pov-row:nth-child(2n){border-right:none}
  .pov-row:nth-last-child(-n+3),.pov-row:nth-last-child(-n+2){border-bottom:1px solid var(--border)}
  .pov-row:last-child{border-bottom:none}
}

/* ─── Cloud Certifications ────────────────────────────────────────────── */
.cloud-cert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-top:20px}
.cloud-cert-card{background:var(--bg1);border:1px solid var(--border);border-top:3px solid var(--cert-color,var(--accent));border-radius:var(--radius2);padding:20px;cursor:pointer;transition:all .2s;position:relative}

.cloud-cert-card:hover{border-color:var(--cert-color,var(--accent));border-top-color:var(--cert-color,var(--accent));transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.25)}
.cert-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.cert-level-badge{font-size:10px;font-weight:700;text-transform:uppercase;padding:3px 8px;border-radius:20px;letter-spacing:.5px}
.cert-level-fundamentals{background:rgba(52,211,153,.15);color:#34d399}
.cert-level-associate{background:rgba(56,189,248,.15);color:#38bdf8}
.cert-level-professional,.cert-level-expert{background:rgba(167,139,250,.15);color:#a78bfa}
.cert-level-foundational,.cert-level-foundation{background:rgba(52,211,153,.15);color:#34d399}
.cert-level-intermediate{background:rgba(251,146,60,.15);color:#fb923c}
.cert-level-advanced{background:rgba(239,68,68,.15);color:#ef4444}
.cert-level-entry{background:rgba(148,163,184,.15);color:#94a3b8}
/* Cert provider tabs — scrollable on all screen sizes */
.cloud-provider-tabs{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;flex-wrap:nowrap}
.cloud-provider-tabs::-webkit-scrollbar{display:none}
.cloud-provider-tabs .tab{flex-shrink:0;white-space:nowrap}
.cert-q-badge{font-size:11px;color:var(--text3);background:var(--bg2);padding:2px 7px;border-radius:10px;border:1px solid var(--border)}
.cert-q-badge.coming{color:var(--text3);font-style:italic}
.cert-code{font-size:22px;font-weight:800;color:var(--cert-color,var(--accent));margin-bottom:4px}
.cert-name{font-size:13px;font-weight:600;color:var(--text1);margin-bottom:6px;line-height:1.4}
.cert-badge{font-size:11px;color:var(--text2)}
.cloud-provider-tabs{margin-bottom:0}

.quiz-option{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg2);border:2px solid var(--border);border-radius:var(--radius2);cursor:pointer;text-align:left;width:100%;font:inherit;color:var(--text1);transition:all .15s;font-size:14px}
.quiz-option:hover:not(:disabled){border-color:var(--accent);background:var(--bg3)}
.quiz-option.quiz-selected{border-color:var(--accent);background:rgba(167,139,250,.1)}
.quiz-option.quiz-correct{border-color:var(--green)!important;background:rgba(52,211,153,.1)!important;color:var(--green)}
.quiz-option.quiz-wrong{border-color:var(--red)!important;background:rgba(239,68,68,.1)!important;color:var(--red)}
.quiz-option:disabled{cursor:default}
.quiz-opt-letter{width:26px;height:26px;border-radius:50%;background:var(--bg3);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex-shrink:0}
.quiz-result{padding:12px 16px;border-radius:var(--radius);font-size:14px;font-weight:500}
.quiz-result-correct{background:rgba(52,211,153,.12);color:var(--green);border:1px solid rgba(52,211,153,.3)}
.quiz-result-wrong{background:rgba(239,68,68,.1);color:var(--red);border:1px solid rgba(239,68,68,.25)}

.cert-detail-header{}
@media(max-width:640px){.cloud-cert-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}.cloud-cert-card{padding:14px}.cert-code{font-size:18px}}@media(max-width:420px){.cloud-cert-grid{grid-template-columns:1fr}.cloud-cert-card{display:flex;align-items:flex-start;gap:12px;padding:12px 14px;height:auto}.cert-card-header{flex-direction:column;align-items:flex-start;gap:4px;flex-shrink:0}.cert-code{font-size:16px;margin-bottom:2px}.cert-name{white-space:normal;word-break:break-word}.cert-badge{white-space:normal;word-break:break-word}.cert-duration{white-space:normal}}

/* ─── Work Experience ─────────────────────────────────────────────────────── */
.exp-timeline-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--border);position:relative}
.exp-timeline-item:last-child{border-bottom:none}
.exp-timeline-dot{width:10px;height:10px;border-radius:50%;background:var(--accent);flex-shrink:0;margin-top:5px;box-shadow:0 0 0 3px rgba(167,139,250,.2)}
.exp-timeline-body{flex:1;min-width:0}
.exp-role{font-size:14px;font-weight:700;color:var(--text1);margin-bottom:2px}
.exp-company{font-size:13px;color:var(--accent);font-weight:500;margin-bottom:4px;display:flex;align-items:center;gap:6px}
.exp-duration{font-size:12px;color:var(--text3);margin-bottom:6px}
.exp-details{font-size:13px;color:var(--text2);line-height:1.6;margin:6px 0 0;white-space:pre-wrap}
.exp-edit-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:16px;margin-bottom:12px}
.exp-edit-card:last-child{margin-bottom:0}

/* ─── Admin User Profile Modal ───────────────────────────────────────────── */
.admin-user-name-btn{background:none;border:none;color:var(--accent);cursor:pointer;font-weight:600;font-size:13px;padding:0;text-decoration:underline;text-underline-offset:2px;font-family:inherit}
.admin-user-name-btn:hover{color:var(--text1)}
.aup-hero{display:flex;gap:16px;align-items:flex-start;padding-bottom:20px;border-bottom:1px solid var(--border);margin-bottom:20px}
.aup-avatar{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,#a78bfa,#6d28d9);color:#fff;font-size:22px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.aup-hero-info{flex:1;min-width:0}
.aup-section{margin-bottom:20px}
.aup-section-title{font-size:12px;text-transform:uppercase;letter-spacing:.6px;color:var(--text3);font-weight:600;margin-bottom:10px}
.aup-fields{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.aup-field{display:flex;align-items:flex-start;gap:8px;background:var(--bg2);border-radius:var(--radius);padding:8px 10px;border:1px solid var(--border)}
.aup-icon{font-size:14px;flex-shrink:0;margin-top:1px}
.aup-label{font-size:10px;color:var(--text3);text-transform:uppercase;letter-spacing:.4px;margin-bottom:2px}
.aup-val{font-size:13px;color:var(--text1);font-weight:500}
@media(max-width:540px){.aup-fields{grid-template-columns:1fr}.aup-hero{flex-direction:column}}

/* ─── Responsiveness Fixes ────────────────────────────────────────────────── */

/* Dashboard "Continue Your Journey" grid — single col on tiny screens */
@media(max-width:480px){
  .continue-grid{grid-template-columns:1fr!important}
}

/* Cert detail tabs — scroll on mobile, no wrap */
.cert-detail-tabs-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.cert-detail-tabs-wrap::-webkit-scrollbar{display:none}

/* Quiz options — full width on mobile */
@media(max-width:480px){
  .quiz-option{font-size:13px;padding:10px 12px}
  .quiz-opt-letter{width:22px;height:22px;font-size:10px}
}

/* Profile experience edit cards — stack fields on mobile */
@media(max-width:480px){
  .exp-edit-card .profile-fields-grid{grid-template-columns:1fr!important}
  .exp-edit-card .profile-field-row{grid-column:1/-1}
}

/* Admin user profile modal — full screen on mobile */
@media(max-width:640px){
  #admin-user-modal .modal{width:100%!important;max-width:100%!important;border-radius:var(--radius2) var(--radius2) 0 0;max-height:92vh;margin-top:auto}
  #admin-user-modal{align-items:flex-end}
  .aup-fields{grid-template-columns:1fr}
}

/* Auth box — no horizontal overflow on very small phones */
@media(max-width:360px){
  .auth-box{padding:16px 12px}
  .auth-brand-logo{font-size:22px}
}

/* Page layout — grid children must not expand beyond their track on mobile */
.page-layout > *{min-width:0}

/* Table — horizontal scroll within the wrap */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;width:100%;max-width:100%}
/* On desktop keep a comfortable min width; on mobile let the table shrink
   to fit — col-hide-md already removes Source, Companies & Rate at ≤768px */
@media(min-width:769px){
  .table-wrap table{min-width:520px}
}

/* Profile nav select — visible on mobile */
@media(max-width:480px){
  .profile-nav{display:none}
  .profile-nav-select{display:block}
}

/* System design tabs — scroll on tablet */
@media(max-width:1024px){
  #sd-tabs{display:flex;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  #sd-tabs .tab{flex-shrink:0}
}

/* ─── Demo Exam ───────────────────────────────────────────────────────────── */
#exam-overlay{font-family:inherit}
.exam-palette{display:block}
@media(max-width:640px){
  .exam-palette{display:none}
  #exam-overlay .quiz-option{font-size:13px;padding:10px 12px}
}
@media(max-width:480px){
  #exam-overlay > div > div:first-child{flex-wrap:nowrap;gap:6px}
  #exam-overlay #exam-timer{font-size:12px;min-width:52px;padding:2px 6px}
}

/* ─── Skill Tracks Dropdown ──────────────────────────────────────────────── */
.nav-group{position:relative;display:flex;align-items:center}
.nav-group-trigger{display:flex;align-items:center;gap:4px;white-space:nowrap}
.nav-group-arrow{font-size:10px;transition:transform .2s;display:inline-block}
.nav-group-trigger.active .nav-group-arrow{transform:rotate(180deg)}
.nav-group-menu{position:absolute;top:calc(100% + 8px);left:0;background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:6px;min-width:180px;box-shadow:0 8px 24px rgba(0,0,0,.35);z-index:200;display:none;flex-direction:column;gap:2px}
.nav-group-menu.open{display:flex}
.nav-group-item{display:flex;align-items:center;gap:8px;padding:8px 12px;font-size:13px;font-weight:500;color:var(--text2);background:none;border:none;border-radius:var(--radius);cursor:pointer;text-align:left;width:100%;font-family:inherit;transition:background .12s,color .12s}
.nav-group-item:hover{background:var(--bg3);color:var(--text1)}

@media(max-width:768px){
  /* In mobile hamburger: Skill Tracks occupies full width like other items */
  .nav-group{width:100%;flex-direction:column;align-items:stretch}
  .nav-group-trigger{width:100%;justify-content:space-between;padding:10px 12px;font-size:14px}
  /* Sub-menu sits below trigger, indented */
  .nav-group-menu{position:static;box-shadow:none;border:none;border-left:2px solid var(--accent);margin-left:12px;padding:4px 0;background:transparent;display:none;gap:0;min-width:0}
  .nav-group-menu.open{display:flex}
  .nav-group-item{padding:9px 14px;font-size:14px;color:var(--text2)}
  .nav-group-item:hover{background:var(--bg3)}
}

/* ─── Cert List Cards (DSA-style) ────────────────────────────────────────── */
.cert-list{display:flex;flex-direction:column;gap:8px;margin-top:16px}
.cert-list-card{display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--bg1);border:1px solid var(--border);border-left:3px solid var(--cert-color,var(--accent));border-radius:var(--radius2);padding:14px 16px;cursor:pointer;transition:border-color .15s,background .15s;animation:fadeIn .2s ease}
.cert-list-card:hover{background:var(--bg2);border-color:var(--cert-color,var(--accent))}
@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.cert-list-left{flex:1;min-width:0}
.cert-list-code{font-size:15px;font-weight:800;margin-bottom:3px}
.cert-list-name{font-size:13px;font-weight:500;color:var(--text1);margin-bottom:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cert-list-meta{font-size:11px;color:var(--text3)}
.cert-list-right{display:flex;flex-direction:column;align-items:flex-end;gap:5px;flex-shrink:0}

/* Mobile: stack right section below left */
@media(max-width:480px){
  .cert-list-card{flex-direction:column;align-items:flex-start;gap:10px}
  .cert-list-right{flex-direction:row;align-items:center;flex-wrap:wrap;gap:6px}
  .cert-list-name{white-space:normal}
}

/* Cert detail page — ensure scroll on mobile */
#page-cloud-detail{overflow-y:auto}
#cloud-detail-content{overflow-x:hidden}
#cert-detail-tabs{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;flex-wrap:nowrap}
#cert-detail-tabs::-webkit-scrollbar{display:none}
#cert-detail-tabs .tab{flex-shrink:0}


/* ─── Progress Carousel ──────────────────────────────────────────────────── */
.prog-car{background:var(--bg1);border:1px solid var(--border);border-radius:var(--radius2);padding:20px;border-top:3px solid var(--car-color,var(--accent))}
.prog-car-hdr{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.prog-nav-btn{width:28px;height:28px;border-radius:50%;background:var(--bg2);border:1px solid var(--border);color:var(--text2);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .12s,color .12s;line-height:1}
.prog-nav-btn:hover{background:var(--bg3);color:var(--text1)}
.prog-nav-btn:disabled{opacity:.3;cursor:default}
.prog-car-body{user-select:none}
.prog-status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:14px}
.prog-stat{background:var(--bg2);border-radius:var(--radius);padding:10px 8px;text-align:center;border:1px solid var(--border)}
.prog-stat-val{font-size:20px;font-weight:800;line-height:1;margin-bottom:4px}
.prog-stat-lbl{font-size:10px;color:var(--text3);text-transform:uppercase;letter-spacing:.4px}
.prog-car-dots{display:flex;justify-content:center;gap:7px;margin-top:16px}
.prog-dot{width:8px;height:8px;border-radius:50%;background:var(--bg3);border:1px solid var(--border);cursor:pointer;transition:all .2s;padding:0}
.prog-dot.active{width:20px;border-radius:4px}
@media(max-width:480px){
  .prog-status-grid{grid-template-columns:repeat(2,1fr)}
  .prog-stat-val{font-size:18px}
}

/* ─── Skill Tracks mobile back button ────────────────────────────────────── */
.skill-back-mobile{display:none}
@media(max-width:768px){
  .skill-back-mobile{display:inline-flex}
}

/* ─── Cert card mobile expand ────────────────────────────────────────────── */
/* Desktop: show all content, hide chevron */
.cert-card-chevron{display:none}
.cert-card-extra{display:block}

/* Mobile: hide extra content + show chevron */
@media(max-width:640px){
  .cert-card-chevron{display:block;font-size:16px;color:var(--text3);text-align:center;margin-top:6px;transition:transform .2s}
  .cert-card-extra{display:none}
  .cloud-cert-card.expanded .cert-card-extra{display:block;animation:fadeIn .2s ease}
  .cloud-cert-card.expanded .cert-card-chevron{transform:rotate(180deg);color:var(--cert-color,var(--accent))}
  .cert-show-more-btn{display:flex!important}
}
/* Hide the show-more button on desktop (desktop navigates directly on click) */
@media(min-width:641px){
  .cert-show-more-btn{display:none!important}
  .cert-badge,.cert-duration{display:block}
}

/* ─── Cert card info lines ───────────────────────────────────────────────── */
.cert-info-line{font-size:12px;color:var(--text2);padding:4px 0;border-bottom:1px solid var(--border);line-height:1.4;word-break:break-word}
.cert-info-line:last-of-type{border-bottom:none}

/* ─── Cert card coming soon (no questions) ───────────────────────────────── */
.cert-no-questions{cursor:default;opacity:.7}
.cert-no-questions:hover{transform:none!important;box-shadow:none!important;border-color:var(--border)!important;border-top-color:var(--cert-color,var(--accent))!important}