:root{--bg: #0b1020;--bg-tint: #101934;--surface: #141b33;--surface-2: #1b2444;--fg: #eef1fb;--muted: #9fb0d0;--accent: #5b8cff;--accent-ink: #ffffff;--accent-soft: rgba(91, 140, 255, .14);--ok: #41d19b;--warn: #ffcf6b;--line: #273458;--shadow: 0 18px 50px -24px rgba(0, 0, 0, .75);--radius: 16px;color-scheme:dark}@media (prefers-color-scheme: light){:root{--bg: #eef2fb;--bg-tint: #e3ebfb;--surface: #ffffff;--surface-2: #f5f8ff;--fg: #0c1430;--muted: #4b5a7c;--accent: #2c5bd6;--accent-ink: #ffffff;--accent-soft: rgba(44, 91, 214, .1);--ok: #157a56;--warn: #8a5a00;--line: #d7deef;--shadow: 0 18px 44px -26px rgba(16, 32, 80, .5);color-scheme:light}}*{box-sizing:border-box}body{margin:0;min-height:100dvh;background:radial-gradient(1100px 620px at 78% -8%,var(--bg-tint),transparent 60%),radial-gradient(900px 520px at 0% 0%,var(--accent-soft),transparent 55%),var(--bg);color:var(--fg);font:17px/1.55 system-ui,-apple-system,Segoe UI,sans-serif;padding:0 0 calc(24px + env(safe-area-inset-bottom,0));-webkit-font-smoothing:antialiased}#app{width:100%;max-width:1060px;margin:0 auto;padding:clamp(24px,5vw,56px) 20px 40px}h1,h2,h3{letter-spacing:-.02em;line-height:1.12}a{color:var(--accent)}.textlink{color:var(--accent);font-weight:600;text-decoration:none}.textlink:hover{text-decoration:underline}.muted{color:var(--muted)}.hero{display:grid;grid-template-columns:1fr;gap:clamp(28px,4vw,48px);align-items:center}@media (min-width: 880px){.hero{grid-template-columns:1.04fr .96fr}}.hero-copy{display:grid;gap:18px}.eyebrow{justify-self:start;font-size:.8rem;font-weight:700;letter-spacing:.04em;color:var(--accent);background:var(--accent-soft);padding:6px 12px;border-radius:999px}.hero h1{margin:0;font-size:clamp(2rem,5.2vw,3.1rem);font-weight:800}.lede{margin:0;font-size:clamp(1.05rem,2.3vw,1.2rem);color:var(--muted);max-width:34ch}.lede strong{color:var(--fg);font-weight:700}.badges{list-style:none;margin:4px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px}.badges li{font-size:.9rem;font-weight:600;border:1px solid var(--line);border-radius:999px;padding:6px 13px;background:var(--surface)}.badges li:before{content:"✓ ";color:var(--accent);font-weight:800}.hero-tool{display:grid}.tool,.card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:clamp(22px,3vw,30px);display:grid;gap:16px;box-shadow:var(--shadow)}.card{max-width:480px;margin:0 auto}.tool{justify-items:center;text-align:center}h1{margin:0;font-size:1.5rem}.card h1{font-size:1.4rem;text-align:center}.status{margin:0;font-weight:600;font-size:1.05rem}.hint{margin:0;color:var(--muted);font-size:.95rem}.save-note{font-size:.88rem}code{background:#7f7f7f2e;padding:.1em .35em;border-radius:6px;font-size:.95em}.pair{display:grid;gap:14px;justify-items:center;text-align:center}.pair[hidden]{display:none}.pair-hint strong{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--fg);font-weight:700}.qr img{width:210px;height:210px;display:block;background:#fff;padding:12px;border-radius:14px}.save-row:empty{display:none}button{font:inherit;font-weight:600;background:var(--accent);color:var(--accent-ink);border:0;border-radius:10px;padding:10px 16px;cursor:pointer}button:disabled{opacity:.6;cursor:default}button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.pick{display:grid;gap:10px;justify-items:center;border:2px dashed var(--line);border-radius:14px;padding:24px;text-align:center;width:100%}.pick span{font-weight:600}input[type=file]{font:inherit}.err{margin:0;color:var(--warn);font-weight:600;min-height:1.2em}.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:12px;width:100%}.thumbs:empty{display:none}.thumb{margin:0;display:grid;gap:6px}.thumb img,.file-tile{width:100%;aspect-ratio:1;object-fit:cover;border-radius:10px;border:1px solid var(--line);background:#7f7f7f1f}.file-tile{display:grid;place-items:center;font-weight:700;color:var(--muted)}.thumb figcaption{font-size:.8rem;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.steps{margin-top:clamp(52px,8vw,92px)}.steps h2,.privacy-section h2{margin:0 0 6px;font-size:clamp(1.5rem,3.4vw,2rem);text-align:center}.step-list{list-style:none;margin:clamp(24px,4vw,36px) 0 0;padding:0;display:grid;gap:18px;grid-template-columns:1fr}@media (min-width: 720px){.step-list{grid-template-columns:repeat(3,1fr)}}.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:grid;gap:10px;align-content:start}.step-n{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:var(--accent-soft);color:var(--accent);font-weight:800;font-size:1.1rem}.step h3{margin:0;font-size:1.12rem}.step p{margin:0;color:var(--muted);font-size:.96rem}.privacy-section{margin-top:clamp(52px,8vw,92px)}.privacy-card{background:var(--surface-2);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:var(--radius);padding:clamp(24px,4vw,36px);display:grid;gap:14px;max-width:760px;margin:clamp(20px,3vw,28px) auto 0}.privacy-card h2{text-align:left}.privacy-card p{margin:0}.privacy-card strong{color:var(--fg)}.site-footer{margin-top:clamp(44px,7vw,72px);padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:center;color:var(--muted);font-size:.9rem;text-align:center}.footer{display:grid;gap:6px;margin-top:4px;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:.85rem}.footer a{color:var(--accent);width:max-content}.prose{max-width:720px;text-align:left;gap:12px}.prose h1{text-align:left;font-size:1.8rem}.prose h2{margin:14px 0 0;font-size:1.15rem}.prose p{margin:0;color:var(--muted)}.prose ul{margin:0;padding-left:1.2em;display:grid;gap:6px;color:var(--muted)}.prose abbr{text-decoration-color:var(--line)}