:root{
    --sidebar-bg:#111827;
    --sidebar-soft:#1f2937;
    --panel-bg:#f5f7fb;
    --card-bg:#ffffff;
    --primary:#5b5bd6;
    --success:#10b981;
    --warning:#f59e0b;
    --danger:#ef4444;
    --text:#111827;
    --muted:#6b7280;
    --shadow:0 10px 30px rgba(15,23,42,.08);
}
*{box-sizing:border-box}
body.app-body{margin:0;background:var(--panel-bg);color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{text-decoration:none}
.app-shell{display:flex;min-height:100vh}
.sidebar{width:280px;background:linear-gradient(180deg,var(--sidebar-bg),#0f172a);color:#fff;padding:24px 18px;display:flex;flex-direction:column;gap:20px;position:sticky;top:0;height:100vh}
.sidebar-brand{display:flex;gap:14px;align-items:center;padding:8px 10px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.06);border-radius:18px}
.brand-icon{width:52px;height:52px;border-radius:16px;background:linear-gradient(135deg,var(--primary),#7c3aed);display:grid;place-items:center;font-size:1.4rem;box-shadow:var(--shadow)}
.sidebar-nav{display:grid;gap:8px}
.sidebar-link{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:14px;color:#d1d5db;font-weight:600;transition:.2s}
.sidebar-link:hover,.sidebar-link.active{background:rgba(255,255,255,.10);color:#fff}
.sidebar-footer{margin-top:auto;background:rgba(255,255,255,.05);padding:16px;border-radius:18px;border:1px solid rgba(255,255,255,.08)}
.app-main{flex:1;min-width:0}
.topbar{background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border-bottom:1px solid rgba(17,24,39,.06);position:sticky;top:0;z-index:20}
.notifications-menu{width:320px}
.notification-item{padding:10px 12px;border-radius:12px}
.notification-item:hover{background:#f8fafc}
.tiny{font-size:.72rem}
.avatar-sm{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#818cf8,#a78bfa);color:#fff;font-weight:700}
.glass-card,.stat-card,.table-card,.login-card,.showcase-card,.timeline-card{background:var(--card-bg);border-radius:22px;border:1px solid rgba(17,24,39,.05);box-shadow:var(--shadow)}
.stat-card{padding:22px;position:relative;overflow:hidden}
.stat-card::after{content:"";position:absolute;right:-30px;top:-30px;width:120px;height:120px;border-radius:50%;background:rgba(91,91,214,.08)}
.stat-label{color:var(--muted);font-weight:600;font-size:.92rem}
.stat-value{font-size:1.8rem;font-weight:800;margin:.2rem 0}
.stat-change{font-size:.84rem}
.icon-badge{width:52px;height:52px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(135deg,#eef2ff,#ede9fe);color:var(--primary);font-size:1.25rem}
.table-card{padding:20px}
.login-wrap{min-height:100vh;background:radial-gradient(circle at top left,#1e293b 0,#0f172a 45%,#111827 100%);display:grid;place-items:center;padding:30px}
.login-card{max-width:980px;width:100%;overflow:hidden;display:grid;grid-template-columns:1.1fr .9fr}
.login-showcase{padding:40px;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;display:flex;flex-direction:column;justify-content:space-between}
.login-form{padding:42px;background:#fff}
.metric-chip{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;background:rgba(255,255,255,.12);margin:.25rem .35rem .25rem 0}
.seal-grid,.reward-grid,.task-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.seal-card,.reward-card,.task-card{background:#fff;border:1px solid rgba(17,24,39,.06);border-radius:20px;box-shadow:var(--shadow);overflow:hidden}
.seal-thumb,.reward-thumb{height:170px;background:linear-gradient(135deg,#ede9fe,#e0e7ff);display:grid;place-items:center}
.seal-thumb img,.reward-thumb img{width:100%;height:100%;object-fit:cover}
.seal-body,.reward-body,.task-body{padding:18px}
.progress-thick{height:12px;border-radius:999px}
.rank-list{display:grid;gap:14px}
.rank-item{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:#fff;border-radius:18px;border:1px solid rgba(17,24,39,.05)}
.rank-medal{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#f8fafc;font-weight:800}
.chart-bars{display:flex;align-items:flex-end;gap:10px;height:230px;padding-top:15px}
.chart-bar{flex:1;background:linear-gradient(180deg,#818cf8,#4f46e5);border-radius:18px 18px 6px 6px;position:relative;min-height:10px}
.chart-bar span{position:absolute;left:50%;bottom:calc(100% + 8px);transform:translateX(-50%);font-size:.8rem;color:var(--muted);white-space:nowrap}
.chart-bar strong{position:absolute;left:50%;top:calc(100% + 8px);transform:translateX(-50%);font-size:.78rem;color:var(--muted)}
.reveal-stage{position:relative;min-height:360px;border-radius:30px;background:linear-gradient(135deg,#312e81,#6d28d9);display:grid;place-items:center;overflow:hidden;color:#fff}
.reveal-cover{position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.22),rgba(255,255,255,.08));backdrop-filter:blur(16px);display:grid;place-items:center;transition:.9s ease}
.reveal-stage.revealed .reveal-cover{transform:translateY(-110%);opacity:0}
.reveal-prize{opacity:.2;transform:scale(.92);transition:.8s ease;text-align:center;padding:24px}
.reveal-stage.revealed .reveal-prize{opacity:1;transform:scale(1)}
.timeline{border-left:3px solid #e5e7eb;padding-left:20px}
.timeline-item{position:relative;margin-bottom:20px}
.timeline-item::before{content:"";position:absolute;left:-29px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--primary)}
.object-fit-cover{object-fit:cover}
@media (max-width: 991px){
    .sidebar{position:fixed;left:-320px;z-index:1030;transition:.3s}
    .sidebar.show{left:0}
    .app-main{width:100%}
    .login-card{grid-template-columns:1fr}
}