/* ARP EduCloud — design system */
:root{
  --brand:#4f46e5; --brand-2:#0ea5e9; --brand-soft:#eef2ff;
  --bg:#f5f6fa; --card:#ffffff; --ink:#0f172a; --ink-2:#334155; --muted:#64748b; --line:#e5e7eb; --line-2:#f1f5f9;
  --green:#16a34a; --green-soft:#dcfce7; --red:#dc2626; --red-soft:#fee2e2; --amber:#d97706; --amber-soft:#fef3c7; --blue:#2563eb; --blue-soft:#dbeafe;
  --side:#0f172a; --side-ink:#cbd5e1; --side-hi:#ffffff;
  --r:12px; --r-sm:8px; --shadow:0 1px 2px rgba(15,23,42,.05),0 4px 16px rgba(15,23,42,.05);
  --font:'Inter','Noto Sans Devanagari',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--font);font-size:14px;line-height:1.55;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.25;color:var(--ink)}
h1{font-size:22px;font-weight:700}h2{font-size:18px;font-weight:650}h3{font-size:15px;font-weight:650}
p{margin:0 0 .8em}
img{max-width:100%}
.muted{color:var(--muted)} .small{font-size:12px} .right{text-align:right} .center{text-align:center} .nowrap{white-space:nowrap}
.ic{width:18px;height:18px;stroke-width:2;vertical-align:-4px;flex-shrink:0}
.hidden{display:none!important}
hr{border:0;border-top:1px solid var(--line);margin:16px 0}

/* ---------- Shell ---------- */
.shell{display:flex;min-height:100vh}
.sidebar{width:260px;background:var(--side);color:var(--side-ink);position:fixed;inset:0 auto 0 0;overflow-y:auto;z-index:40;transition:transform .2s}
.sidebar .brand{display:flex;align-items:center;gap:10px;padding:18px 18px 14px;color:#fff;font-weight:700;font-size:16px;border-bottom:1px solid rgba(255,255,255,.06)}
.sidebar .brand img{height:34px;width:34px;object-fit:contain;border-radius:8px;background:#fff}
.sidebar .brand .logo-dot{height:34px;width:34px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center;color:#fff;font-weight:800}
.sidebar .brand small{display:block;font-weight:500;font-size:11px;color:#94a3b8}
.nav{padding:10px 10px 40px}
.nav .sec{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:#64748b;padding:14px 10px 6px;font-weight:600}
.nav a{display:flex;align-items:center;gap:10px;color:var(--side-ink);padding:8px 10px;border-radius:8px;font-size:13.5px}
.nav a:hover{background:rgba(255,255,255,.06);color:#fff;text-decoration:none}
.nav a.active{background:var(--brand);color:#fff}
.nav a .ic{width:17px;height:17px;opacity:.9}
.nav a .lock{margin-left:auto;opacity:.5;width:14px;height:14px}
.main{flex:1;margin-left:260px;min-width:0;display:flex;flex-direction:column}
.topbar{height:60px;background:var(--card);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px;padding:0 22px;position:sticky;top:0;z-index:30}
.topbar .search{flex:1;max-width:420px;position:relative}
.topbar .search input{width:100%;padding:8px 12px 8px 36px;border:1px solid var(--line);border-radius:10px;background:var(--bg)}
.topbar .search .ic{position:absolute;left:11px;top:9px;color:var(--muted)}
.topbar .spacer{flex:1}
.topbar .tb-btn{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:8px;color:var(--ink-2);position:relative;background:none;border:0;cursor:pointer;font:inherit}
.topbar .tb-btn:hover{background:var(--line-2);text-decoration:none}
.topbar .dot{position:absolute;top:3px;right:3px;background:var(--red);color:#fff;font-size:10px;border-radius:10px;padding:0 5px;line-height:16px}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-weight:700;font-size:13px;overflow:hidden}
.avatar img{width:100%;height:100%;object-fit:cover}
.menu-toggle{display:none}
.content{padding:22px;max-width:1400px;width:100%}
.page-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.page-head h1{margin:0}
.page-head .sub{color:var(--muted);font-size:13px;margin-top:2px}
.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.dropdown{position:relative}
.dropdown-menu{position:absolute;right:0;top:110%;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);min-width:200px;padding:6px;display:none;z-index:50}
.dropdown.open .dropdown-menu{display:block}
.dropdown-menu a,.dropdown-menu button{display:flex;gap:8px;align-items:center;padding:8px 10px;border-radius:6px;color:var(--ink-2);width:100%;background:none;border:0;font:inherit;cursor:pointer;text-align:left}
.dropdown-menu a:hover,.dropdown-menu button:hover{background:var(--line-2);text-decoration:none}

/* ---------- Banners ---------- */
.banner{padding:10px 22px;font-size:13px;display:flex;gap:10px;align-items:center}
.banner.warn{background:var(--amber-soft);color:#92400e}
.banner.danger{background:var(--red-soft);color:#991b1b}
.banner.info{background:var(--blue-soft);color:#1e40af}
.banner a{font-weight:600;color:inherit;text-decoration:underline}

/* ---------- Cards / grid ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);margin-bottom:18px}
.card-h{padding:14px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.card-h h2,.card-h h3{margin:0}
.card-b{padding:18px}
.card-b.tight{padding:0}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g-2-1{grid-template-columns:2fr 1fr}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;box-shadow:var(--shadow);display:flex;gap:14px;align-items:center}
.stat .si{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);flex-shrink:0}
.stat .si.green{background:var(--green-soft);color:var(--green)}.stat .si.amber{background:var(--amber-soft);color:var(--amber)}.stat .si.red{background:var(--red-soft);color:var(--red)}.stat .si.blue{background:var(--blue-soft);color:var(--blue)}
.stat .v{font-size:22px;font-weight:700;line-height:1.1}
.stat .l{color:var(--muted);font-size:12.5px}
.kv{display:grid;grid-template-columns:150px 1fr;gap:8px 14px;font-size:13.5px}
.kv dt{color:var(--muted)} .kv dd{margin:0;font-weight:500}
.progress{height:8px;border-radius:8px;background:var(--line-2);overflow:hidden}
.progress span{display:block;height:100%;background:var(--brand);border-radius:8px}
.progress.warn span{background:var(--amber)} .progress.danger span{background:var(--red)}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto}
table.t{width:100%;border-collapse:collapse;font-size:13.5px}
table.t th{text-align:left;font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.03em;padding:10px 14px;background:#fafbfc;border-bottom:1px solid var(--line);white-space:nowrap}
table.t td{padding:10px 14px;border-bottom:1px solid var(--line-2);vertical-align:middle}
table.t tr:hover td{background:#fafbff}
table.t td.act{white-space:nowrap;text-align:right}
table.t .thumb{width:38px;height:38px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
table.t tfoot td{font-weight:700;background:#fafbfc}
.empty{padding:40px;text-align:center;color:var(--muted)}
.empty .ic{width:36px;height:36px;opacity:.4;display:block;margin:0 auto 8px}
.swatch{display:inline-block;width:14px;height:14px;border-radius:4px;vertical-align:-2px;border:1px solid var(--line)}

/* ---------- Toolbar / filters ---------- */
.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line)}
.toolbar input,.toolbar select{padding:7px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;font:inherit;font-size:13px}
.toolbar input[type=search]{min-width:220px}
.pager{display:flex;gap:4px;align-items:center;padding:12px 14px;flex-wrap:wrap}
.pager a,.pager span.cur{padding:5px 10px;border:1px solid var(--line);border-radius:6px;color:var(--ink-2);font-size:13px}
.pager span.cur{background:var(--brand);color:#fff;border-color:var(--brand)}
.pager .muted{margin-left:10px;font-size:12px}

/* ---------- Forms ---------- */
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 18px}
.form-grid.g3f{grid-template-columns:repeat(3,minmax(0,1fr))}
.fg{display:flex;flex-direction:column;gap:5px}
.fg.full{grid-column:1/-1}
.fg label{font-weight:600;font-size:13px;color:var(--ink-2)}
.fg label .req{color:var(--red)}
.fg .help{font-size:12px;color:var(--muted)}
.fg .err{font-size:12px;color:var(--red)}
.fg.has-err input,.fg.has-err select,.fg.has-err textarea{border-color:var(--red)}
input[type=text],input[type=email],input[type=tel],input[type=number],input[type=password],input[type=date],input[type=datetime-local],input[type=time],input[type=search],input[type=url],select,textarea{
  width:100%;padding:9px 11px;border:1px solid #d6dae1;border-radius:var(--r-sm);font:inherit;font-size:14px;background:#fff;color:var(--ink);transition:border .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 18%,transparent)}
textarea{min-height:90px;resize:vertical}
textarea.html{min-height:220px;font-family:ui-monospace,Menlo,monospace;font-size:13px}
input[type=color]{width:56px;height:38px;padding:2px;border:1px solid #d6dae1;border-radius:8px;background:#fff}
input[type=file]{font-size:13px}
.check{display:flex;gap:8px;align-items:center;font-weight:500}
.check input{width:16px;height:16px;accent-color:var(--brand)}
.checks{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px;padding:10px;border:1px solid var(--line);border-radius:8px;max-height:260px;overflow:auto}
.multi{min-height:110px}
.form-actions{display:flex;gap:10px;justify-content:flex-end;padding-top:6px;flex-wrap:wrap}
.input-group{display:flex;gap:6px}
.input-group>*{flex:1}
.input-group>.btn{flex:0 0 auto}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;border-radius:8px;border:1px solid transparent;font:inherit;font-weight:600;font-size:13.5px;cursor:pointer;background:var(--brand);color:#fff;white-space:nowrap;transition:filter .15s,background .15s;line-height:1.3}
.btn:hover{filter:brightness(.94);text-decoration:none}
.btn .ic{width:16px;height:16px}
.btn-light{background:#fff;color:var(--ink-2);border-color:var(--line)}
.btn-light:hover{background:var(--line-2);filter:none}
.btn-green{background:var(--green)} .btn-red{background:var(--red)} .btn-amber{background:var(--amber)}
.btn-ghost{background:transparent;color:var(--ink-2);border-color:transparent}
.btn-ghost:hover{background:var(--line-2);filter:none}
.btn-sm{padding:5px 9px;font-size:12.5px;border-radius:7px}
.btn-lg{padding:12px 20px;font-size:15px;border-radius:10px}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.icon-btn{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:7px;color:var(--muted);background:none;border:0;cursor:pointer}
.icon-btn:hover{background:var(--line-2);color:var(--ink);text-decoration:none}
.icon-btn.danger:hover{background:var(--red-soft);color:var(--red)}
form.inline{display:inline}

/* ---------- Badges / alerts ---------- */
.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:11.5px;font-weight:600;white-space:nowrap}
.badge-green{background:var(--green-soft);color:#15803d}.badge-red{background:var(--red-soft);color:#b91c1c}.badge-amber{background:var(--amber-soft);color:#b45309}
.badge-blue{background:var(--blue-soft);color:#1d4ed8}.badge-gray{background:#f1f5f9;color:#475569}.badge-brand{background:var(--brand-soft);color:var(--brand)}
.alert{padding:11px 14px;border-radius:10px;margin-bottom:14px;display:flex;gap:10px;align-items:flex-start;font-size:13.5px}
.alert-success{background:var(--green-soft);color:#14532d}.alert-error{background:var(--red-soft);color:#7f1d1d}.alert-warning{background:var(--amber-soft);color:#78350f}.alert-info{background:var(--blue-soft);color:#1e3a8a}
.alert .x{margin-left:auto;cursor:pointer;opacity:.6;background:none;border:0;font-size:18px;line-height:1;color:inherit}

/* ---------- Tabs ---------- */
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:16px;overflow-x:auto}
.tabs a,.tabs button{padding:10px 14px;color:var(--muted);font-weight:600;border:0;background:none;border-bottom:2px solid transparent;cursor:pointer;font:inherit;white-space:nowrap}
.tabs a.active,.tabs button.active{color:var(--brand);border-bottom-color:var(--brand)}
.tab-pane{display:none}.tab-pane.active{display:block}

/* ---------- Lists / timeline ---------- */
.list{list-style:none;margin:0;padding:0}
.list li{padding:11px 18px;border-bottom:1px solid var(--line-2);display:flex;gap:10px;align-items:center}
.list li:last-child{border-bottom:0}
.timeline{list-style:none;margin:0;padding:0 0 0 18px;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 16px 14px}
.timeline li:before{content:"";position:absolute;left:-25px;top:4px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--brand)}
.chart-box{position:relative;height:260px}
.bars{display:flex;align-items:flex-end;gap:10px;height:180px;padding-top:10px}
.bars .bar{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;height:100%;justify-content:flex-end}
.bars .bar span{display:block;width:100%;max-width:46px;background:linear-gradient(180deg,var(--brand),var(--brand-2));border-radius:6px 6px 2px 2px;min-height:2px}
.bars .bar small{font-size:11px;color:var(--muted)}

/* ---------- Auth pages ---------- */
.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1.1fr 1fr}
.auth-art{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;padding:48px;display:flex;flex-direction:column;justify-content:space-between}
.auth-art h1{color:#fff;font-size:34px;line-height:1.2}
.auth-art ul{padding-left:18px;opacity:.95}
.auth-form{display:flex;align-items:center;justify-content:center;padding:32px;background:#fff}
.auth-form .box{width:100%;max-width:400px}
.auth-form .box h2{font-size:24px}
.otp{letter-spacing:.5em;text-align:center;font-size:22px!important}

/* ---------- Modal ---------- */
.modal{position:fixed;inset:0;background:rgba(15,23,42,.55);display:none;align-items:center;justify-content:center;z-index:100;padding:16px}
.modal.open{display:flex}
.modal .mbox{background:#fff;border-radius:14px;max-width:520px;width:100%;max-height:90vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal .mbox .mh{padding:14px 18px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}
.modal .mbox .mb{padding:18px}
.popup-card{max-width:440px;text-align:center}
.popup-card img{width:100%;max-height:240px;object-fit:cover;border-radius:14px 14px 0 0}
.popup-card .pb{padding:20px}

/* ---------- Print docs ---------- */
.doc{background:#fff;max-width:820px;margin:20px auto;padding:36px;border:1px solid var(--line);border-radius:6px}
.doc .doc-head{display:flex;justify-content:space-between;align-items:flex-start;border-bottom:3px solid var(--brand);padding-bottom:14px;margin-bottom:18px;gap:16px}
.doc .doc-head img{max-height:64px}
.doc table{width:100%;border-collapse:collapse}
.doc table td,.doc table th{border:1px solid #d1d5db;padding:8px 10px;text-align:left}
.doc table th{background:#f8fafc}
.no-print{}
@media print{.no-print{display:none!important}body{background:#fff}.doc{border:0;margin:0;max-width:none}}

/* ---------- Exam taking ---------- */
.exam-top{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px;display:flex;justify-content:space-between;align-items:center;z-index:20}
.timer{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--brand)}
.timer.low{color:var(--red)}
.q{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:14px}
.q .qn{font-weight:700;color:var(--brand);margin-bottom:6px}
.q label.opt{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border:1px solid var(--line);border-radius:8px;margin:6px 0;cursor:pointer}
.q label.opt:hover{background:var(--brand-soft)}
.q label.opt input{margin-top:3px;accent-color:var(--brand)}

/* ---------- Pricing ---------- */
.pricing{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.plan{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;display:flex;flex-direction:column;gap:12px;position:relative}
.plan.featured{border:2px solid var(--brand);box-shadow:0 10px 30px color-mix(in srgb,var(--brand) 20%,transparent)}
.plan .tag{position:absolute;top:-12px;left:24px;background:var(--brand);color:#fff;font-size:11px;font-weight:700;padding:3px 10px;border-radius:20px}
.plan .price{font-size:32px;font-weight:800}
.plan .price small{font-size:14px;color:var(--muted);font-weight:500}
.plan ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:7px;font-size:13.5px}
.plan ul li{display:flex;gap:8px;align-items:flex-start}
.plan ul li .ic{color:var(--green);width:16px;height:16px;margin-top:2px}
.cycle-switch{display:inline-flex;background:#fff;border:1px solid var(--line);border-radius:30px;padding:4px;gap:4px}
.cycle-switch button{border:0;background:none;padding:7px 14px;border-radius:30px;font:inherit;font-weight:600;color:var(--muted);cursor:pointer}
.cycle-switch button.on{background:var(--brand);color:#fff}

/* ---------- Tree ---------- */
.tree ul{list-style:none;padding-left:22px;margin:0;border-left:1px dashed #cbd5e1}
.tree>ul{border-left:0;padding-left:0}
.tree li{padding:6px 0}
.tree .node{display:inline-flex;gap:8px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 10px}

/* ---------- Responsive ---------- */
@media (max-width:1100px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.g-2-1{grid-template-columns:1fr}}
@media (max-width:860px){
  .sidebar{transform:translateX(-100%)} body.nav-open .sidebar{transform:none}
  body.nav-open:after{content:"";position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:35}
  .main{margin-left:0}.menu-toggle{display:inline-flex}
  .g2,.g3,.form-grid,.form-grid.g3f{grid-template-columns:1fr}
  .auth-wrap{grid-template-columns:1fr}.auth-art{display:none}
  .content{padding:16px}.topbar{padding:0 12px}.topbar .search{display:none}
  .kv{grid-template-columns:1fr}
}
@media (max-width:520px){.g4{grid-template-columns:1fr}.hide-sm{display:none!important}}
@media print{.sidebar,.topbar,.banner,.alert{display:none!important}.main{margin-left:0!important}.content{padding:0!important}}