*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:#0f172a;color:#e5e7eb}a{color:inherit;text-decoration:none}button,input,select{font:inherit}
.container{width:min(1100px,calc(100% - 32px));margin:0 auto}.topbar{position:sticky;top:0;background:rgba(15,23,42,.9);backdrop-filter:blur(12px);border-bottom:1px solid rgba(148,163,184,.15);z-index:50}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;padding:14px 0;gap:16px;flex-wrap:wrap}.brand{display:flex;align-items:center;gap:12px}.brand-badge{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#06b6d4,#3b82f6);display:grid;place-items:center;font-weight:700;color:#fff}
.nav{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.page{padding:24px 0 40px}.card{background:#111827;border:1px solid rgba(148,163,184,.16);border-radius:20px;padding:20px;box-shadow:0 10px 30px rgba(2,6,23,.2)}
.page-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.stack>*+*{margin-top:18px}.stack-sm>*+*{margin-top:12px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}.stat strong{font-size:2rem;display:block;margin-top:6px}
.form-grid{display:grid;gap:14px}label span{display:block;margin-bottom:6px;color:#cbd5e1;font-size:.92rem}input,select{width:100%;padding:12px 14px;border-radius:12px;border:1px solid #334155;background:#0b1220;color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 16px;border-radius:12px;border:none;background:#2563eb;color:#fff;cursor:pointer;font-weight:600}.btn:hover{filter:brightness(1.05)}
.btn-outline{background:transparent;border:1px solid #475569}.btn-danger{background:#dc2626}.btn-sm{padding:9px 12px;font-size:.9rem}.inline{display:inline}.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse}th,td{padding:12px 10px;border-bottom:1px solid rgba(148,163,184,.12);text-align:left;vertical-align:top}.small{font-size:.88rem}.muted{color:#94a3b8}.center{text-align:center}
.alert,.info-box{padding:14px 16px;border-radius:14px;border:1px solid transparent}.alert-success,.info-box.success{background:rgba(34,197,94,.1);border-color:rgba(34,197,94,.3);color:#dcfce7}.alert-danger{background:rgba(239,68,68,.1);border-color:rgba(239,68,68,.3);color:#fee2e2}
.auth-wrapper{display:grid;place-items:center;min-height:70vh}.auth-card{width:min(480px,100%)}.auth-card-wide{width:min(760px,100%)}.auth-links{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.info-box{background:rgba(59,130,246,.09);border-color:rgba(59,130,246,.3)}.mt-8{margin-top:8px}.mt-16{margin-top:16px}
.checkbox-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}.check-card{display:flex;gap:12px;align-items:flex-start;padding:14px;border:1px solid rgba(148,163,184,.18);border-radius:16px;background:#0b1220}
.qr-card{display:grid;place-items:center;padding:30px}.qr-wrapper{margin-top:18px;min-height:300px;display:grid;place-items:center;background:#fff;border-radius:24px;padding:18px;max-width:320px;width:100%}.scanner-box{min-height:320px;border-radius:18px;overflow:hidden;background:#020617}
.log-item{padding:12px 14px;border:1px solid rgba(148,163,184,.14);border-radius:14px;background:#0b1220}.footer{padding:0 0 30px}
.badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;font-size:.82rem;font-weight:600}.badge-success{background:rgba(34,197,94,.12);color:#dcfce7;border:1px solid rgba(34,197,94,.28)}.badge-warning{background:rgba(245,158,11,.12);color:#fde68a;border:1px solid rgba(245,158,11,.28)}
.toast-container{position:fixed;right:18px;top:82px;display:grid;gap:10px;z-index:1000;pointer-events:none}.toast{min-width:260px;max-width:min(92vw,360px);padding:14px 16px;border-radius:16px;border:1px solid rgba(148,163,184,.18);background:rgba(15,23,42,.96);box-shadow:0 12px 30px rgba(2,6,23,.35);opacity:0;transform:translateY(-8px);transition:all .25s ease}.toast.is-visible{opacity:1;transform:translateY(0)}.toast-success{border-color:rgba(34,197,94,.28);color:#dcfce7}.toast-error{border-color:rgba(239,68,68,.28);color:#fee2e2}.toast-warning{border-color:rgba(245,158,11,.28);color:#fde68a}
.center-notice{position:fixed;inset:0;display:grid;place-items:center;background:rgba(2,6,23,.42);backdrop-filter:blur(6px);z-index:1001;opacity:0;transition:opacity .25s ease;pointer-events:none}.center-notice.is-visible{opacity:1}.center-notice-card{min-width:min(90vw,380px);padding:26px 28px;border-radius:24px;background:#111827;border:1px solid rgba(34,197,94,.25);box-shadow:0 16px 40px rgba(2,6,23,.45);text-align:center}.center-notice-icon{font-size:2.4rem;margin-bottom:10px}.center-notice-text{font-size:1.05rem;font-weight:700}.success-mark{color:#166534;padding:24px 10px}.success-mark strong{font-size:1.05rem}

.action-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.action-strip{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.filter-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;align-items:end}.filter-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:end}
.session-report-page .table-wrap{max-height:none}.session-report-page h2{margin-top:0}
@media print{.topbar,.footer,.btn,.alert,.toast-container,.center-notice{display:none!important}body{background:#fff;color:#111827}.card{box-shadow:none;border:1px solid #ddd;background:#fff}th,td{color:#111827;border-color:#ddd}.muted{color:#475569}}
@media (max-width: 840px){.grid-2{grid-template-columns:1fr}.topbar-inner{align-items:flex-start}.nav{width:100%}.toast-container{left:16px;right:16px;top:auto;bottom:20px}.toast{min-width:0;max-width:none}.auth-links{align-items:stretch}}