:root {
    --bg: #0d1117;
    --panel: #161b22;
    --border: #30363d;
    --text: #e6edf3;
    --muted: #8b949e;
    --accent: #4493f8;
    --danger: #f85149;
    --ok: #3fb950;
    --warn: #d29922;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; font-size: 15px; line-height: 1.5; }
code, pre, textarea, input, button { font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace; font-size: 14px; }

header { display: flex; justify-content: space-between; align-items: baseline; padding: 1rem 2rem; border-bottom: 1px solid var(--border); }
header h1 { margin: 0; font-size: 1.1rem; font-weight: 600; letter-spacing: 0.02em; }
.user-info { color: var(--muted); font-size: 0.85rem; }

main { max-width: 960px; margin: 0 auto; padding: 1.5rem 2rem 4rem; display: flex; flex-direction: column; gap: 1.5rem; }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 1rem 1.25rem; }
.panel h2 { margin: 0 0 0.75rem; font-size: 0.95rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.hint { color: var(--muted); font-size: 0.85rem; margin: 0 0 0.5rem; }

form { display: flex; flex-direction: column; gap: 0.5rem; }
.row { display: flex; gap: 0.5rem; align-items: center; }
input[type=text], textarea { background: #0d1117; color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 0.5rem 0.75rem; width: 100%; }
input[type=text]:focus, textarea:focus { border-color: var(--accent); outline: none; }
textarea { resize: vertical; min-height: 140px; }
button { background: var(--accent); color: #0d1117; border: 0; border-radius: 6px; padding: 0.5rem 1rem; font-weight: 600; cursor: pointer; }
button:disabled { background: var(--border); color: var(--muted); cursor: not-allowed; }
button.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
button.secondary:hover { border-color: var(--accent); }

.result { margin-top: 0.75rem; }
.result pre { background: #0d1117; border: 1px solid var(--border); border-radius: 6px; padding: 0.75rem; overflow-x: auto; margin: 0; white-space: pre-wrap; word-break: break-word; }
.result table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.result th, .result td { text-align: left; padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.result th { color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.7rem; font-weight: 600; }
.result .empty { color: var(--muted); font-style: italic; }

.state-ok { color: var(--ok); }
.state-warn { color: var(--warn); }
.state-error { color: var(--danger); }
.state-info { color: var(--muted); }
.badge { display: inline-block; padding: 0.1rem 0.4rem; border: 1px solid var(--border); border-radius: 4px; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.badge.admin { color: var(--warn); border-color: var(--warn); }
.badge.rule { color: var(--accent); border-color: var(--accent); }
.badge.llm { color: var(--ok); border-color: var(--ok); }

.diff { display: flex; gap: 0.5rem; align-items: center; }
.diff .arrow { color: var(--muted); }