:root{--bg: #f5f5fa;--card: #ffffff;--text: #0f172a;--muted: #64748b;--border: #e2e4eb;--ring: rgba(139,92,246,.2);--accent: linear-gradient(135deg, #8b5cf6, #ec4899)}[data-theme=dark]{--bg: #0a0a14;--card: #12122a;--text: #f1f1f6;--muted: rgba(255,255,255,.35);--border: rgba(255,255,255,.06);--ring: rgba(139,92,246,.3)}*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;color:var(--text);transition:background .3s,color .3s}.container{max-width:900px;margin:0 auto;padding:24px 18px 40px}.header{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:20px;flex-wrap:wrap}.brand{display:flex;flex-direction:column;gap:2px}.h1{margin:0;font-size:22px;font-weight:900;letter-spacing:-.3px}.sub{margin:0;color:var(--muted);font-size:12px}.header-actions{display:flex;align-items:center;gap:8px}.theme-btn{width:36px;height:36px;border-radius:10px;border:1px solid var(--border);background:var(--card);color:var(--muted);display:grid;place-items:center;cursor:pointer;font-size:16px;transition:all .15s}.theme-btn:hover{border-color:#8b5cf64d}.grid{display:grid;gap:14px}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px;transition:all .15s}.cardHeader{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.cardTitle{display:flex;align-items:center;gap:10px;font-weight:800;font-size:14px}.icon{width:30px;height:30px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:16px}.hint{color:var(--muted);font-size:11px}.textarea{width:100%;min-height:120px;resize:vertical;border-radius:12px;border:1px solid var(--border);padding:12px;font-size:14px;line-height:1.5;outline:none;background:var(--card);color:var(--text);font-family:inherit;transition:all .15s}.textarea::placeholder{color:var(--muted)}.textarea:focus{border-color:#8b5cf666;box-shadow:0 0 0 4px var(--ring)}.actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.btn{border-radius:10px;padding:10px 16px;border:1px solid var(--border);background:var(--card);color:var(--text);font-weight:700;font-size:12px;cursor:pointer;transition:all .15s}.btn:hover{border-color:#8b5cf64d}.btn:disabled{opacity:.4;cursor:not-allowed}.btnPrimary{background:var(--accent);color:#fff;border:none;font-weight:800}.btnPrimary:hover{box-shadow:0 6px 20px #8b5cf64d;transform:translateY(-1px)}.btnPrimary:disabled{opacity:.4;transform:none;box-shadow:none}.spacer{flex:1}.toast{color:var(--muted);font-size:11px;font-weight:600}.footer{margin-top:28px;padding-top:12px;border-top:1px solid var(--border);text-align:center;font-size:9px;color:var(--muted)}