:root{color-scheme:light dark;--bg-a: #eef2ff;--bg-b: #ecfeff;--bg-c: #faf5ff;--surface: rgba(255, 255, 255, .72);--surface-solid: #ffffff;--border: rgba(99, 102, 241, .22);--border-strong: rgba(99, 102, 241, .55);--text: #1e2130;--text-muted: #5b607a;--accent: #6366f1;--accent-2: #14b8a6;--danger: #dc2626;--warn: #b45309;--shadow: 0 20px 50px -20px rgba(49, 46, 129, .35);--ring: rgba(99, 102, 241, .35)}@media(prefers-color-scheme:dark){:root{--bg-a: #0b1020;--bg-b: #0a1622;--bg-c: #120c22;--surface: rgba(23, 27, 43, .62);--surface-solid: #171b2b;--border: rgba(129, 140, 248, .2);--border-strong: rgba(129, 140, 248, .6);--text: #e7e9f3;--text-muted: #9aa0bd;--accent: #818cf8;--accent-2: #2dd4bf;--danger: #f87171;--warn: #fbbf24;--shadow: 0 24px 60px -24px rgba(0, 0, 0, .7);--ring: rgba(129, 140, 248, .45)}}*{box-sizing:border-box}html,body{height:100%}body{margin:0;min-height:100dvh;color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:radial-gradient(1100px 700px at 12% -8%,var(--bg-a),transparent 60%),radial-gradient(1000px 800px at 108% 10%,var(--bg-b),transparent 55%),radial-gradient(900px 900px at 50% 120%,var(--bg-c),transparent 60%),var(--surface-solid);background-attachment:fixed;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}#app{min-height:100dvh;display:grid;place-items:center;padding:24px}.shell{width:min(640px,100%);max-width:100%;min-width:0;display:flex;flex-direction:column;align-items:center;gap:22px}.masthead{text-align:center}.wordmark{margin:0;font-size:clamp(2.2rem,6vw,3rem);font-weight:800;letter-spacing:-.03em;background:linear-gradient(120deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}.tagline{margin:6px 0 0;color:var(--text-muted);font-size:.95rem}.dropzone{width:100%;min-height:220px;padding:40px 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.dropzone__icon{transform:translateY(-4px)}.dropzone__title{margin:0;font-size:1.15rem;font-weight:650}.dropzone__hint{margin:0;font-size:.9rem;color:var(--text-muted)}.dropzone__browse{padding:0;border:0;background:none;font:inherit;color:var(--accent);font-weight:600;cursor:pointer;text-decoration:underline;text-underline-offset:2px}.content{width:100%;min-width:0;display:flex;justify-content:center;position:relative}.content.is-busy{pointer-events:none}.content.is-busy:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:20px;background:color-mix(in srgb,var(--surface-solid) 55%,transparent);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:5}.content.is-busy:before{content:"";position:absolute;top:calc(50% - 21px);left:calc(50% - 21px);width:42px;height:42px;border:4px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear 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var(--border);border-radius:10px;background:var(--surface-solid);color:var(--text);font:inherit;font-size:.88rem;resize:vertical}.feedback__send{padding:8px 16px}.status{margin:0;min-height:1.4em;font-size:.92rem;color:var(--text-muted);text-align:center}.status--error{color:var(--danger)}.status--ok{color:var(--accent-2)}.status--busy:before{content:"";display:inline-block;width:.85em;height:.85em;margin-right:8px;vertical-align:-.1em;border:2px solid var(--border-strong);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.footnote{margin-top:4px;font-size:.8rem;color:var(--text-muted);text-align:center;opacity:.85}@media(max-width:480px){.dropzone{min-height:190px;padding:32px 18px}}