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.nav-mobile-bottom.student-bottom-nav{background:var(--student-nav-bg);border-top-color:var(--student-border);box-shadow:0 -6px 18px #00000059}html[data-theme=dark] .student-bottom-nav a,html[data-theme=dark] .nav-mobile-bottom.student-bottom-nav a,html[data-theme=dark] .student-bottom-nav button,html[data-theme=dark] .nav-mobile-bottom.student-bottom-nav button{background:transparent;color:var(--student-muted)}html[data-theme=dark] .student-bottom-nav a.active,html[data-theme=dark] .nav-mobile-bottom.student-bottom-nav a.active{color:#e0e7ff;background:#6366f147}html[data-theme=dark] .lang-flag-dropdown--default .lang-flag-trigger{background:var(--student-card, #121a2b);border-color:var(--student-border, #243044);color:var(--student-text, #e8eef9)}html[data-theme=dark] .lang-flag-dropdown--default .lang-flag-trigger:hover{background:#1e293b;border-color:#475569}html[data-theme=dark] .lang-flag-dropdown--default .lang-flag-caret{color:var(--student-muted, #94a3b8)}html[data-theme=dark] .lang-flag-menu{background:var(--student-card, #121a2b);border-color:var(--student-border, #243044);color:var(--student-text, #e8eef9);box-shadow:0 10px 28px #00000073}html[data-theme=dark] .lang-flag-item,html[data-theme=dark] .lang-flag-item-name{color:var(--student-text, #e8eef9)}html[data-theme=dark] .lang-flag-item:hover,html[data-theme=dark] .lang-flag-item.selected{background:#6366f138;color:#e0e7ff}html[data-theme=dark] .lang-flag-item:hover .lang-flag-item-name,html[data-theme=dark] .lang-flag-item.selected .lang-flag-item-name{color:#e0e7ff}html[data-theme=dark] .admin-mobile-shell{background:var(--student-bg, #0b1220)}html[data-theme=dark] .admin-mobile-topbar{background:#0f172af5;border-bottom-color:var(--student-border, #243044)}html[data-theme=dark] .admin-mobile-topbar-title,html[data-theme=dark] .admin-mobile-drawer-head strong{color:var(--student-text, #e8eef9)}html[data-theme=dark] .admin-mobile-menu-btn,html[data-theme=dark] .admin-mobile-drawer-close{background:var(--student-card, #121a2b);border-color:var(--student-border, #243044);color:var(--student-text, #e8eef9)}html[data-theme=dark] .admin-mobile-drawer{background:var(--student-card, #121a2b);border-right-color:var(--student-border, #243044)}html[data-theme=dark] .admin-mobile-drawer-head,html[data-theme=dark] .admin-mobile-drawer-foot{border-color:var(--student-border, #243044)}html[data-theme=dark] .admin-mobile-drawer-nav a{color:var(--student-muted, #94a3b8)}html[data-theme=dark] .admin-mobile-drawer-nav a:hover{background:#1e293b;color:var(--student-text, #e8eef9)}html[data-theme=dark] .admin-mobile-drawer-nav a.active{background:#6366f159;color:#e0e7ff}html[data-theme=dark] .student-tab-row{background:#0a101c;border:1px solid #1e293b;box-shadow:inset 0 1px #ffffff05}html[data-theme=dark] .student-tab{color:#94a3b8;background:transparent}html[data-theme=dark] .student-tab:hover{color:#e2e8f0;background:#94a3b814}html[data-theme=dark] 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.qr-fullscreen-content{background:#121a2b;color:var(--student-text)}.admin-dashboard{display:flex;flex-direction:column;gap:1rem}.admin-dashboard-loading{margin:0}.admin-dashboard-hero{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;flex-wrap:wrap;padding:1.25rem 1.35rem;border-radius:16px;background:linear-gradient(135deg,#1e3a5f,#2563eb 52%,#6366f1);color:#fff;box-shadow:0 10px 30px #2563eb38}.admin-dashboard-eyebrow{margin:0 0 .25rem;font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;opacity:.82}.admin-dashboard-title{margin:0;font-size:1.45rem;font-weight:800;letter-spacing:-.03em}.admin-dashboard-subtitle{margin:.35rem 0 0;font-size:.88rem;opacity:.9;max-width:36rem}.admin-dashboard-hero-meta{display:flex;flex-direction:column;align-items:flex-end;gap:.55rem}.admin-dashboard-date{font-size:.78rem;opacity:.88;white-space:nowrap}.admin-dashboard-stats-link{background:#ffffff29;border:1px solid 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