:root,:root[data-theme=light]{color-scheme:light;--bg: #eef1f8;--surface: #ffffff;--surface-2: #f6f8fc;--fg: #16202c;--muted: #5d6b7e;--border: #e3e8f1;--accent: #146bff;--accent-2: #11b9a6;--accent-fg: #ffffff;--error: #c0362c;--shadow-sm: 0 1px 2px rgb(16 24 40 / .05);--shadow-md: 0 6px 22px rgb(20 107 255 / .1)}:root[data-theme=dark]{color-scheme:dark;--bg: #0e131b;--surface: #161d27;--surface-2: #1c2530;--fg: #e8edf4;--muted: #9aa7b8;--border: #27313f;--accent: #4f93ff;--accent-2: #2ed4bf;--accent-fg: #0a0d12;--error: #f2b8b5;--shadow-sm: 0 1px 2px rgb(0 0 0 / .3);--shadow-md: 0 10px 30px rgb(0 0 0 / .38)}*{box-sizing:border-box}body{margin:0;background:radial-gradient(1200px 500px at 50% -200px,color-mix(in srgb,var(--accent) 12%,transparent),transparent),var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Apple SD Gothic Neo,Noto Sans KR,sans-serif;-webkit-font-smoothing:antialiased}.app{max-width:840px;margin:0 auto;padding:1.5rem 1.25rem 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.15s ease,transform .1s ease}.dropzone:hover{border-color:color-mix(in srgb,var(--accent) 55%,var(--border))}.dropzone--active{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,var(--surface));transform:scale(1.005)}.dropzone[aria-disabled=true]{opacity:.6;cursor:progress}.dropzone__icon{display:grid;place-items:center;width:72px;height:72px;margin-bottom:.3rem;border-radius:50%;color:var(--accent-fg);background:linear-gradient(135deg,var(--accent),var(--accent-2));padding:14px;box-shadow:0 8px 20px color-mix(in srgb,var(--accent) 35%,transparent)}.dropzone__title{margin:0;font-weight:700;font-size:1.2rem}.dropzone__hint{margin:0;color:var(--muted);font-size:.9rem}.app__notice{margin:1rem 0 0;color:var(--muted);font-size:.9rem}.app__failures{list-style:none;padding:.9rem 1.1rem;margin:1.25rem 0 0;color:var(--error);background:color-mix(in srgb,var(--error) 8%,var(--surface));border:1px solid color-mix(in srgb,var(--error) 25%,var(--border));border-radius:12px}.cards{display:grid;gap:1.5rem}.group{display:grid;gap:.6rem}.group__title{margin:0;padding-left:.15rem;font-size:1.1rem;font-weight:700;letter-spacing:-.01em}.settings,.preview,.batch{border:1px solid var(--border);border-radius:16px;background:var(--surface);box-shadow:var(--shadow-sm)}.settings{margin:0;padding:1.25rem 1.4rem 1.5rem;display:grid;gap:.85rem}.settings__row{display:flex;align-items:center;gap:.6rem;cursor:pointer}.settings__field{display:grid;gap:.35rem}.settings__input{font:inherit;padding:.55rem .7rem;border:1px solid var(--border);border-radius:10px;background:var(--surface-2);color:var(--fg);letter-spacing:.06em}.reflow-example{margin-top:.4rem;padding:.9rem 1rem;border-radius:12px;background:var(--surface-2);border:1px solid var(--border)}.reflow-example__title{display:block;margin:0 0 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var(--border);border-radius:9px;background:var(--surface)}.book-row__actions{display:flex;align-items:center;justify-content:flex-end;gap:.6rem}.book-row__remove{display:grid;place-items:center;width:38px;height:38px;border:none;border-radius:9px;background:transparent;color:var(--error);cursor:pointer}.book-row__remove:hover:not(:disabled){background:color-mix(in srgb,var(--error) 12%,transparent)}.book-row__remove:disabled{opacity:.45;cursor:not-allowed}.book-row__cover{display:flex;flex-direction:column;align-items:center;gap:.4rem}.cover-thumb{width:86px;height:122px;padding:0;border:1px solid var(--border);border-radius:9px;overflow:hidden;background:var(--surface);cursor:pointer;display:grid;place-items:center}.cover-thumb img{width:100%;height:100%;object-fit:cover}.cover-thumb__auto{font-size:.72rem;color:var(--muted)}.cover-thumb__reset{border:none;background:none;color:var(--accent);font:inherit;font-size:.74rem;cursor:pointer;padding:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}