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.auth-hero{background:linear-gradient(150deg,rgba(248,250,252,.08),transparent 42%),radial-gradient(circle at 78% 22%,rgba(255,90,118,.14),transparent 18rem),linear-gradient(145deg,#111a2e,#070b16 62%)}:root[data-theme=dark] .auth-hero:before{border-color:#f8fafc1f}:root[data-theme=dark] .auth-panel,:root[data-theme=dark] .status-panel,:root[data-theme=dark] .sidebar,:root[data-theme=dark] .metric-card,:root[data-theme=dark] .book-card,:root[data-theme=dark] .settings-card,:root[data-theme=dark] .admin-card,:root[data-theme=dark] .unit-row,:root[data-theme=dark] .lesson-panel,:root[data-theme=dark] .examples-panel,:root[data-theme=dark] .exercise-block,:root[data-theme=dark] .author-milestone,:root[data-theme=dark] .author-story{background:#0e1628eb;box-shadow:0 18px 55px #0000003d}:root[data-theme=dark] .dashboard-hero,:root[data-theme=dark] .author-hero{background:linear-gradient(135deg,rgba(255,90,118,.1),transparent 38%),linear-gradient(145deg,#111a2e,#09111f)}:root[data-theme=dark] .theme-switcher{background:#f8fafc0a;box-shadow:inset 0 1px #f8fafc14}:root[data-theme=dark] .theme-switcher button.active{background:#f8fafc1a;box-shadow:0 8px 20px #00000047}:root[data-theme=dark] .shell-nav a.active,:root[data-theme=dark] .shell-nav a:hover{background:#2563eb1a}:root[data-theme=dark] .shell-user button,:root[data-theme=dark] .secondary-action{background:#f8fafc0f}:root[data-theme=dark] .input-wrap,:root[data-theme=dark] .voice-select select,:root[data-theme=dark] .google-voice-select select,:root[data-theme=dark] .admin-form input,:root[data-theme=dark] .answer-input{background:#070b16b8}:root[data-theme=dark] .table-action{background:#f8fafc0f}:root[data-theme=dark] .notice,:root[data-theme=dark] .status-icon,:root[data-theme=dark] .metric-icon,:root[data-theme=dark] .audio-mode,:root[data-theme=dark] .exercise-title,:root[data-theme=dark] 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