:root{--bg: #f6f7f9;--panel: #ffffff;--border: #e2e5ea;--ink: #1f2430;--muted: #6b7280;--accent: #2563eb;--danger: #dc2626;--ok: #16a34a;--warn: #d97706}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);font-size:14px}h1,h2,h3{margin:0 0 .5rem}button{font:inherit;cursor:pointer;border:1px solid var(--border);background:#fff;border-radius:6px;padding:.35rem .7rem}button:hover{background:#f0f2f5}button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}button.primary:hover{filter:brightness(1.05)}button.danger{color:var(--danger);border-color:#f3c2c2}button.small{padding:.15rem .4rem;font-size:12px}input,select{font:inherit;padding:.3rem .45rem;border:1px solid var(--border);border-radius:6px;background:#fff}table{border-collapse:collapse;width:100%}th,td{text-align:left;padding:.4rem .55rem;border-bottom:1px solid 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