:root{color-scheme:light;--teal: #0b4f4a;--teal-dark: #083c38;--ink: #1c1b1a;--ink-muted: #6b6862;--paper: #f7f5f0;--card-bg: #ffffff;--divider: #e8e4db;--error: #8a2e2e}*{box-sizing:border-box}body{margin:0;min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 20px;background:radial-gradient(720px 420px at 50% -10%,rgba(11,79,74,.08),transparent),var(--paper);color:var(--ink);font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.screen{width:100%;max-width:420px}.brand{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:20px}.brand img{height:28px;width:auto}.brand span{font-family:Fraunces,Georgia,serif;font-weight:700;font-size:19px;color:var(--ink);letter-spacing:-.01em}.brand span em{font-style:normal;color:var(--teal)}.card{background:var(--card-bg);border:1px solid var(--divider);border-radius:16px;padding:28px 24px;box-shadow:0 20px 40px -24px #1c1b1a40;animation:rise .35s ease-out}@keyframes rise{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion: reduce){.card{animation:none}}h1{font-family:Fraunces,Georgia,serif;font-weight:700;font-size:21px;margin:0 0 10px;color:var(--ink);letter-spacing:-.01em}p{line-height:1.5;color:var(--ink);margin:0 0 16px}.hint{font-size:13px;color:var(--ink-muted);margin:14px 0 0}.error{color:var(--error)}.file-picker{display:block;margin:4px 0 18px;padding:20px 16px;border:2px dashed var(--divider);border-radius:12px;text-align:center;cursor:pointer;color:var(--ink-muted);font-size:14px;font-weight:600;transition:border-color .15s ease,background .15s ease}.file-picker:hover{border-color:var(--teal);background:#0b4f4a08}.file-picker input[type=file]{display:none}button{width:100%;padding:15px;border:none;border-radius:10px;background:var(--teal);color:#fff;font-family:inherit;font-size:16px;font-weight:600;cursor:pointer;transition:background .15s ease,transform .15s ease}button:hover:not(:disabled){background:var(--teal-dark);transform:translateY(-1px)}button:disabled{background:#c9c5ba;cursor:not-allowed}.progress-track{width:100%;height:10px;border-radius:6px;background:var(--divider);overflow:hidden;margin:18px 0 8px}.progress-fill{height:100%;background:var(--teal);transition:width .2s ease}