:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#0d0f2b;color:#fff;--surface: rgba(20, 24, 54, .9);--surface-strong: rgba(10, 14, 44, .96);--border: rgba(255, 255, 255, .1);--accent: #6d8bff;--accent-strong: #8fa7ff;--text: #e7ebff;--muted: #9aa5ca;--highlight: #4fceff;--shadow: rgba(0, 0, 0, .5);--glass: rgba(255, 255, 255, .05);--glass-border: rgba(255, 255, 255, .1);--cloud-color: rgba(255, 255, 255, .08);--transition-speed: .5s}html{transition:background-color var(--transition-speed) ease,color var(--transition-speed) ease}html.theme-transitioning{animation:theme-pulse .6s ease-in-out}@keyframes theme-pulse{0%{filter:brightness(1)}50%{filter:brightness(1.3)}to{filter:brightness(1)}}[data-theme=light]{--surface: rgba(255, 255, 255, .9);--surface-strong: rgba(255, 255, 255, .96);--border: rgba(0, 0, 0, .1);--text: #1a1a2e;--muted: #666680;--accent: #4f5bf7;--accent-strong: #6d7bff;--highlight: 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#0003}.form-panel{display:flex;flex-direction:column;gap:0;margin-top:18px}.file-card{background:#23253a;border-radius:12px;padding:18px 18px 12px;margin-bottom:14px;box-shadow:0 1px 8px #0001;display:flex;flex-direction:column;gap:6px}.file-card header{display:flex;align-items:center;justify-content:space-between;gap:12px}.file-name{font-weight:600;color:#6c63ff;font-size:1.1rem}.file-meta{color:#b2b6c8;font-size:.95rem}.topbar{width:100%;background:#23253a;padding:18px 32px;display:flex;align-items:center;justify-content:space-between;border-radius:0 0 18px 18px;box-shadow:0 2px 16px #0002;margin-bottom:24px}@media (max-width: 900px){.card-grid{flex-direction:column;gap:12px}.screen-header{padding:18px 0 10px}}