:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;--bg: #f7f4ee;--surface: #ffffff;--surface-alt: #efe9dd;--text: #1b1b1a;--text-muted: #6b6457;--primary: #1b1b1a;--primary-contrast: #f7f4ee;--accent: #b6912f;--border: #e4ddcd;--danger: #b3261e;--glow: rgba(182, 145, 47, .1);color-scheme:light}body{margin:0;padding:2.5rem 1.5rem;min-height:100vh;box-sizing:border-box;color:var(--text);background-color:var(--bg);background-image:radial-gradient(900px circle at 50% -10%,var(--glow),transparent 70%)}textarea{width:100%;box-sizing:border-box;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.95rem;color:var(--text);background:var(--surface-alt);border:1px solid var(--border);border-radius:10px;padding:.75rem;resize:vertical}textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--glow)}textarea::placeholder{color:var(--text-muted);opacity:.8}button{font:inherit;font-weight:600;cursor:pointer;color:var(--primary-contrast);background:var(--primary);border:1px solid transparent;border-radius:10px;padding:.6rem 1.1rem;transition:filter .15s ease,opacity .15s ease}button:hover:not(:disabled){filter:brightness(1.08)}button:disabled{opacity:.5;cursor:not-allowed}.interim{display:block;margin:.5rem 0;color:var(--text-muted);opacity:.8}.error{color:var(--danger);font-weight:600}