:root{--bg: #0f172a;--panel: #1e293b;--panel-2: #334155;--text: #e2e8f0;--muted: #94a3b8;--accent: #38bdf8;--danger: #f87171;--ok: #4ade80;color-scheme:dark}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text)}.app{max-width:820px;margin:0 auto;padding:2.5rem 1.25rem 4rem}.app__header{text-align:center;margin-bottom:2rem}.app__brand{display:inline-flex;align-items:center;gap:.6rem;margin:0 auto 1.25rem;padding:.5rem .9rem;background:#fff;border-radius:8px}.app__logo{height:32px;width:auto;display:block}.app__brand-name{color:#1a1a1a;font-weight:600;font-size:.95rem}.app__header h1{margin:0 0 .5rem;font-size:2rem}.app__subtitle{color:var(--muted);margin:0}.dropzone{border:2px dashed var(--panel-2);border-radius:12px;padding:2.5rem 1.5rem;text-align:center;cursor:pointer;background:var(--panel);transition:border-color .15s,background .15s}.dropzone:hover,.dropzone--active{border-color:var(--accent);background:#1b2a41}.dropzone--disabled{opacity:.6;cursor:not-allowed}.dropzone__title{margin:0 0 .25rem;font-size:1.15rem;font-weight:600}.dropzone__hint{margin:0;color:var(--muted)}.warning{color:#fbbf24;font-size:.9rem;margin:.75rem 0 0}.status{margin:1.25rem 0 0;color:var(--muted)}.status--error{color:var(--danger)}.status--done{color:var(--ok)}.result-header{display:flex;align-items:center;justify-content:space-between;margin-top:1.5rem}.output{margin-top:.75rem;background:var(--panel);border-radius:12px;overflow:hidden;border:1px solid var(--panel-2)}.output__toolbar{display:flex;align-items:center;justify-content:space-between;padding:.6rem .9rem;background:var(--panel-2)}.output__label{font-size:.85rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}.output__actions{display:flex;gap:.5rem}.output__text{width:100%;min-height:360px;border:0;padding:1rem;resize:vertical;background:transparent;color:var(--text);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.85rem;line-height:1.5}.output__text:focus{outline:none}button{background:var(--accent);color:#0b1220;border:0;border-radius:8px;padding:.45rem .9rem;font-weight:600;cursor:pointer}button:hover{filter:brightness(1.05)}.link-button{background:transparent;color:var(--muted);padding:.25rem .5rem;font-weight:500}.app__footer{margin-top:2.5rem;color:var(--muted);font-size:.85rem;text-align:center}.app__footer a{color:var(--accent)}