:root{--bg:#f5f6f8;--surface:#fff;--border:#d9dce1;--text:#1c1f24;--text-muted:#6b7280;--accent:#2f6feb;--accent-contrast:#fff;--error-bg:#fdeceb;--error-border:#e5534b;--error-text:#8a1f16;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--bg:#14161a;--surface:#1b1e24;--border:#2e333c;--text:#e6e8eb;--text-muted:#9aa1ac;--accent:#5b9dff;--accent-contrast:#0b1220;--error-bg:#3a1c1c;--error-border:#e5534b;--error-text:#ffb4ac;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:system-ui,Segoe UI,Roboto,sans-serif}#root{max-width:1000px;margin:0 auto;padding:20px}h1{margin:0 0 4px;font-size:26px}.app-description{color:var(--text-muted);margin:0 0 20px;font-size:14px}.site-header{align-items:center;gap:10px;margin-bottom:12px;display:flex}.site-header__brand{color:var(--accent);white-space:nowrap;font-size:15px;font-weight:700;text-decoration:none}.site-header__brand:hover{text-decoration:underline}.site-header__divider{color:var(--text-muted);font-weight:400}.site-header__title{color:var(--text-muted);white-space:nowrap;font-size:15px;font-weight:600}.toolbar-spacer{flex:1}.btn,.toggle-btn{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:6px;padding:6px 12px;font-size:13px}.btn:hover,.toggle-btn:hover{border-color:var(--accent)}.toggle-btn.active{background:var(--accent);color:var(--accent-contrast);border-color:var(--accent)}.icon-btn{padding:6px 10px}.toolbar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;display:flex}.toolbar select{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:6px;padding:6px 10px;font-size:13px}.mode-group{gap:4px;display:inline-flex}.panels{grid-template-columns:1fr 1fr;gap:16px;display:grid}@media (width<=720px){.panels{grid-template-columns:1fr}}.panel{flex-direction:column;gap:6px;display:flex}.panel__label{color:var(--text-muted);justify-content:space-between;align-items:center;font-size:13px;font-weight:600;display:flex}.panel textarea{resize:vertical;background:var(--surface);width:100%;min-height:320px;color:var(--text);border:1px solid var(--border);border-radius:8px;padding:12px;font-family:ui-monospace,Consolas,monospace;font-size:13px;line-height:1.5}.panel textarea:focus{border-color:var(--accent);outline:none}