:root{
  --brand:#4f46e5; --brand-2:#7c3aed; --brand-soft:#eef0ff;
  --bg:#f3f5fb; --card:#ffffff; --ink:#1e2433; --muted:#6b7385; --line:#e6e9f2;
  --side-bg:#12172b; --side-ink:#aab1c8; --side-active:rgba(124,92,255,.18);
  --radius:16px; --shadow:0 1px 2px rgba(20,24,50,.04),0 8px 24px -12px rgba(20,24,50,.12);
  --sidebar-w:268px;
}
[data-bs-theme=dark]{
  --bg:#0d1020; --card:#171b30; --ink:#e8ebf7; --muted:#8e97b3; --line:#262b45; --brand-soft:#232852;
  --side-bg:#0a0d1a; --shadow:0 8px 24px -12px rgba(0,0,0,.6);
}
html,body{font-family:'Prompt',system-ui,-apple-system,'Segoe UI',sans-serif;background:var(--bg);color:var(--ink);font-size:.95rem}
body{min-height:100vh}
a{text-decoration:none}
.text-muted{color:var(--muted)!important}
.btn-primary{--bs-btn-bg:var(--brand);--bs-btn-border-color:var(--brand);--bs-btn-hover-bg:#4338ca;--bs-btn-hover-border-color:#4338ca;--bs-btn-active-bg:#3730a3;background-image:linear-gradient(135deg,var(--brand),var(--brand-2));border:0;box-shadow:0 6px 16px -6px rgba(79,70,229,.6)}
.btn-primary:hover{filter:brightness(1.07)}
.btn{border-radius:10px;font-weight:500}
.btn-icon{width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);background:var(--card);color:var(--ink)}
.btn-icon:hover{background:var(--brand-soft)}
.form-control,.form-select{border-radius:10px;border-color:var(--line);background-color:var(--card)}
.form-control:focus,.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 .2rem rgba(79,70,229,.15)}
.form-label{font-weight:500;font-size:.85rem;color:var(--muted);margin-bottom:.25rem}
.form-label .req{color:#e11d48}

/* ---------- shell ---------- */
.app-shell{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar-w);background:var(--side-bg);color:var(--side-ink);position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;z-index:1040;transition:transform .25s}
.brand{display:flex;gap:12px;align-items:center;padding:20px 20px 14px;color:#fff}
.brand-mark{width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center;font-size:1.3rem;box-shadow:0 8px 20px -6px rgba(124,92,255,.7)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-weight:600;font-size:1.02rem}
.brand-text small{color:var(--side-ink);font-size:.72rem;margin-top:2px}
.side-nav{flex:1;overflow-y:auto;padding:6px 14px 14px}
.side-nav::-webkit-scrollbar{width:6px}.side-nav::-webkit-scrollbar-thumb{background:#2a3150;border-radius:6px}
.nav-group{font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:#5d6686;margin:18px 10px 6px}
.nav-link-x{display:flex;align-items:center;gap:12px;color:var(--side-ink);padding:10px 12px;border-radius:12px;margin-bottom:2px;font-weight:400;transition:.15s}
.nav-link-x i{font-size:1.1rem;width:22px;text-align:center}
.nav-link-x:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link-x.active{background:var(--side-active);color:#fff;box-shadow:inset 3px 0 0 #8b7bff}
.nav-link-x.active i{color:#a99bff}
.side-foot{padding:10px 14px 16px;border-top:1px solid rgba(255,255,255,.07)}
.main-col{margin-left:var(--sidebar-w);flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:1020;display:flex;align-items:center;gap:12px;padding:14px 28px;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar-title h1{font-size:1.25rem;font-weight:600;margin:0}
.topbar-title .sub{font-size:.8rem;color:var(--muted)}
.user-chip{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:5px 12px 5px 6px;color:var(--ink)}
.user-chip::after{margin-left:4px}
.user-chip b{display:block;font-weight:500;font-size:.85rem;line-height:1.1}
.user-chip small{color:var(--muted);font-size:.7rem}
.avatar{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;display:grid;place-items:center;font-weight:600}
.content{padding:26px 28px 40px;flex:1}
.foot{padding:14px 28px;color:var(--muted);font-size:.78rem;text-align:center}
.sidebar-backdrop{display:none}
@media(max-width:991.98px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:none}
  .sidebar-backdrop.show{display:block;position:fixed;inset:0;background:rgba(10,12,30,.5);z-index:1035}
  .main-col{margin-left:0}
  .topbar,.content{padding-left:16px;padding-right:16px}
}

/* ---------- cards ---------- */
.card-soft{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow);margin-bottom:22px}
.card-header-x{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:16px 20px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.card-header-x .ttl{font-weight:600;display:flex;align-items:center;gap:10px}
.card-header-x .ttl i{color:var(--brand);font-size:1.15rem}
.card-body{padding:20px}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin-bottom:22px}
.stat-card{display:flex;gap:14px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.stat-card .ic{width:50px;height:50px;border-radius:15px;display:grid;place-items:center;font-size:1.5rem;color:#fff;flex:none}
.stat-card .lbl{color:var(--muted);font-size:.8rem}
.stat-card .val{font-size:1.65rem;font-weight:600;line-height:1.15}
.stat-card .hint{font-size:.74rem;color:var(--muted);margin-top:2px}
.tone-indigo .ic{background:linear-gradient(135deg,#6366f1,#8b5cf6)}
.tone-emerald .ic{background:linear-gradient(135deg,#10b981,#34d399)}
.tone-amber .ic{background:linear-gradient(135deg,#f59e0b,#fbbf24)}
.tone-rose .ic{background:linear-gradient(135deg,#f43f5e,#fb7185)}
.tone-sky .ic{background:linear-gradient(135deg,#0ea5e9,#38bdf8)}
.tone-slate .ic{background:linear-gradient(135deg,#475569,#64748b)}

/* ---------- tables ---------- */
.table-modern{--bs-table-bg:transparent;margin:0}
.table-modern thead th{font-size:.76rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:500;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--brand-soft) 45%,transparent);white-space:nowrap}
.table-modern td,.table-modern th{padding:.8rem 1rem;vertical-align:middle;border-color:var(--line)}
.table-modern tbody tr:hover{background:color-mix(in srgb,var(--brand-soft) 40%,transparent)}
.badge-soft{font-weight:500;padding:.4em .7em;border-radius:8px}
.row-actions .btn{padding:.25rem .55rem;border-radius:8px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.toolbar .search{position:relative;flex:1;min-width:200px;max-width:380px}
.toolbar .search i{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted)}
.toolbar .search input{padding-left:36px}
.empty-state{text-align:center;padding:60px 20px;color:var(--muted)}
.empty-state>i{font-size:3.4rem;color:var(--brand);opacity:.65}
.empty-state h4{color:var(--ink);margin-top:12px}
.confirm-icon{width:64px;height:64px;border-radius:50%;background:#fee2e2;color:#dc2626;display:grid;place-items:center;font-size:1.8rem;margin:auto}

/* ---------- permission matrix ---------- */
.perm-wrap{max-height:560px;overflow:auto;border:1px solid var(--line);border-radius:12px}
.perm-table thead th{position:sticky;top:0;background:var(--card);z-index:2;border-bottom:1px solid var(--line);font-weight:500}
.perm-table td,.perm-table th{padding:.5rem .6rem;border-color:var(--line)}
.perm-group td{background:var(--brand-soft);color:var(--brand);font-weight:600;font-size:.8rem;letter-spacing:.05em}
.perm-table .form-check-input{width:1.15rem;height:1.15rem;cursor:pointer}
.perm-table .form-check-input:checked{background-color:var(--brand);border-color:var(--brand)}

/* ---------- login ---------- */
.login-wrap{min-height:100vh;display:grid;grid-template-columns:1.05fr 1fr}
.login-hero{background:radial-gradient(circle at 20% 15%,#7c3aed 0,transparent 45%),radial-gradient(circle at 85% 80%,#2563eb 0,transparent 40%),#1b1f45;color:#fff;padding:60px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.login-hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.12) 1.4px,transparent 1.4px);background-size:26px 26px;opacity:.5;pointer-events:none}
.login-hero>*{position:relative;z-index:1}
.login-hero h2{font-weight:600;font-size:2.1rem;line-height:1.3;max-width:520px}
.feature{display:flex;gap:14px;margin-top:20px;align-items:flex-start}
.feature .ic{width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.14);display:grid;place-items:center;font-size:1.2rem;flex:none}
.feature b{display:block;font-weight:500}.feature span{color:#c3c8ee;font-size:.85rem}
.login-form{display:grid;place-items:center;padding:30px;background:var(--bg)}
.login-card{width:100%;max-width:410px}
@media(max-width:900px){.login-wrap{grid-template-columns:1fr}.login-hero{display:none}}

/* ---------- exam builder / misc ---------- */
.q-card{border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:var(--card)}
.q-card+.q-card{margin-top:8px}
.q-text{font-size:.92rem}
.choice-line{font-size:.82rem;color:var(--muted)}
.choice-line .ok{color:#059669;font-weight:600}
.chip{display:inline-flex;align-items:center;gap:6px;padding:.25rem .65rem;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:.78rem;font-weight:500}
.step-bar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.step-bar a{display:flex;align-items:center;gap:8px;padding:9px 16px;border-radius:12px;background:var(--card);border:1px solid var(--line);color:var(--ink);font-weight:500;font-size:.88rem}
.step-bar a.active{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;border-color:transparent;box-shadow:0 8px 18px -8px rgba(79,70,229,.7)}
.step-bar a .n{width:22px;height:22px;border-radius:50%;background:rgba(127,127,160,.2);display:grid;place-items:center;font-size:.72rem}
.step-bar a.active .n{background:rgba(255,255,255,.25)}
.dropzone{border:2px dashed #a8b0d6;border-radius:18px;padding:44px 20px;text-align:center;background:var(--brand-soft);transition:.2s;cursor:pointer}
.dropzone.drag{border-color:var(--brand);background:color-mix(in srgb,var(--brand) 12%,var(--card));transform:scale(1.01)}
.dropzone i{font-size:3rem;color:var(--brand)}
.scan-item{display:flex;align-items:center;gap:12px;padding:10px 14px;border:1px solid var(--line);border-radius:12px;background:var(--card);margin-bottom:8px}
.scan-item .nm{flex:1;min-width:0}.scan-item .nm b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bubble-row{display:flex;gap:6px;flex-wrap:wrap}
.bubble-row label{cursor:pointer;margin:0}
.bubble-row input{position:absolute;opacity:0}
.bubble-row span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;border:2px solid var(--line);font-weight:600;font-size:.82rem;transition:.12s;color:var(--muted)}
.bubble-row input:checked+span{background:var(--brand);border-color:var(--brand);color:#fff;transform:scale(1.08)}
.bubble-row input:focus-visible+span{outline:3px solid rgba(79,70,229,.35)}
.bubble-row.blank input:checked+span{background:#94a3b8;border-color:#94a3b8}
.ans-row{display:flex;align-items:center;gap:12px;padding:8px 12px;border-radius:12px;border:1px solid transparent}
.ans-row:nth-child(odd){background:color-mix(in srgb,var(--brand-soft) 35%,transparent)}
.ans-row.flag{background:#fff7ed;border-color:#fdba74}
[data-bs-theme=dark] .ans-row.flag{background:#3a2a14}
.ans-row .no{width:36px;font-weight:600;color:var(--muted);text-align:right}
.ans-row .key{margin-left:auto;font-size:.78rem;color:var(--muted)}
.scan-preview{position:sticky;top:90px}
.scan-preview img{width:100%;border-radius:12px;border:1px solid var(--line)}
.progress{height:.55rem;border-radius:10px}
.hist-bar{display:flex;align-items:flex-end;gap:6px;height:140px}
@media print{
  .sidebar,.topbar,.foot,.no-print{display:none!important}
  .main-col{margin:0}.content{padding:0}
  .card-soft{box-shadow:none;border:1px solid #ccc}
}