:root{--bg-color:#0f172a;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent-color:#10b981;--accent-hover:#059669;--danger-color:#ef4444;--warning-color:#f59e0b;--glass-bg:#1e293bb3;--glass-border:#ffffff1a;--glass-shadow:0 4px 30px #0000001a;--glass-blur:blur(12px)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);flex-direction:column;min-height:100vh;font-family:Inter,system-ui,-apple-system,sans-serif;display:flex}#root{flex-direction:column;flex-grow:1;display:flex}.glass-panel{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);border-radius:16px;padding:24px}h1{background:linear-gradient(90deg,#fff,#94a3b8);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:1rem;font-size:2.5rem;font-weight:700}h2{margin-bottom:1rem;font-size:1.5rem;font-weight:600}.btn{background-color:var(--accent-color);color:#fff;cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:1rem;font-weight:600;transition:all .2s;display:inline-flex}.btn:hover{background-color:var(--accent-hover);transform:translateY(-2px)}.btn:active{transform:translateY(0)}.btn-secondary{border:1px solid var(--glass-border);color:var(--text-primary);background-color:#0000}.btn-secondary:hover{background-color:#ffffff0d}.btn-danger{background-color:var(--danger-color)}.btn-danger:hover{background-color:#dc2626}.input{border:1px solid var(--glass-border);width:100%;color:var(--text-primary);background-color:#0003;border-radius:8px;padding:12px 16px;font-family:inherit;font-size:1rem;transition:border-color .2s}.input:focus{border-color:var(--accent-color);outline:none}.container{width:100%;max-width:1200px;margin:0 auto;padding:24px}.timer-display{font-variant-numeric:tabular-nums;font-family:JetBrains Mono,Roboto Mono,monospace;font-weight:700;line-height:1}.flash-animation{animation:1s infinite alternate flash}@keyframes flash{0%{background-color:#ef44441a}to{background-color:#ef4444cc}}@keyframes severe-flash-overlay{0%{opacity:0}50%{opacity:.85}to{opacity:0}}.flash-screen-active:after{content:"";background-color:var(--flash-color,#ef4444);z-index:9999;pointer-events:none;animation:.5s infinite severe-flash-overlay;position:absolute;inset:0}:root{--mod-bg-app:#0b1120;--mod-bg-sidebar:#111827;--mod-bg-panel:#172033;--mod-bg-input:#1f2937;--mod-border:#ffffff0d;--mod-border-panel:#ffffff08;--mod-text-primary:#f3f4f6;--mod-text-secondary:#9ca3af;--mod-btn-bg:#374151;--mod-accent:#3b82f6}[data-theme=light]{--mod-bg-app:#f9fafb;--mod-bg-sidebar:#fff;--mod-bg-panel:#fff;--mod-bg-input:#f3f4f6;--mod-border:#0000001a;--mod-border-panel:#0000000d;--mod-text-primary:#111827;--mod-text-secondary:#4b5563;--mod-btn-bg:#e5e7eb;--mod-accent:#2563eb}