:root{--bg: #f4f6f9;--panel: #ffffff;--border: #e3e8ef;--text: #1c2430;--muted: #6b7686;--accent: #d8232a;--accent-dark: #b51d23;--radius: 14px;--shadow: 0 6px 24px rgba(20, 30, 45, .06)}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,Segoe UI,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}#app{max-width:960px;margin:0 auto;padding:32px 20px 64px}.header{display:flex;align-items:center;gap:12px;margin-bottom:6px}.logo{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:9px;background:var(--accent);color:#fff;font-weight:800;font-size:20px}h1{font-size:1.5rem;margin:0;letter-spacing:-.01em}.subtitle{color:var(--muted);margin:4px 0 24px;font-size:.95rem}.controls{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-bottom:16px}.control{display:flex;align-items:center;gap:8px;font-size:.9rem;color:var(--muted)}select{font:inherit;padding:7px 10px;border:1px solid var(--border);border-radius:9px;background:var(--panel);color:var(--text)}.switch{display:inline-flex;align-items:center;gap:8px;cursor:pointer;-webkit-user-select:none;user-select:none}.panes{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media (max-width: 720px){.panes{grid-template-columns:1fr}}.pane{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);display:flex;flex-direction:column;min-height:260px}.pane-label{font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);padding:14px 16px 0}textarea{flex:1;border:none;outline:none;resize:none;font:inherit;font-size:1.15rem;line-height:1.5;padding:12px 16px 16px;background:transparent;color:var(--text)}.output{flex:1;padding:12px 16px 16px;font-size:1.15rem;line-height:1.5;white-space:pre-wrap;overflow-wrap:anywhere}.output.placeholder{color:#aab2bf}.phonetics{border-top:1px dashed var(--border);padding:12px 16px;color:var(--muted);font-size:.98rem}.phonetics .tag{display:inline-block;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--accent);margin-right:8px}.phonetics .value{color:var(--text)}.footer-row{display:flex;justify-content:space-between;align-items:center;padding:10px 16px 14px;border-top:1px solid var(--border);font-size:.8rem;color:var(--muted);min-height:44px}.badge{display:inline-block;padding:2px 8px;border-radius:999px;background:#eef1f6;font-size:.72rem}.warn{color:var(--accent-dark)}.error{margin-top:14px;padding:10px 14px;border-radius:10px;background:#fdecec;color:var(--accent-dark);font-size:.9rem}.spinner{width:14px;height:14px;border:2px solid #cfd6e0;border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}