:root{--ink: #212121;--muted: #737373;--line: #dbdbdb;--panel-fill: #f4f4f4;--canvas: #fafafa;--surface: #ffffff;--warn: #b86600;--warn-line: #edb34d;--warn-bg: #fff7e6;--tag-stroke: #8c8c8c;--bg: var(--canvas);--panel: var(--surface);--radius: 8px;--radius-ctl: 6px;--radius-tag: 4px;--gap: 24px;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:13px;line-height:1.4;color:var(--ink)}*{box-sizing:border-box}body{margin:0;background:var(--canvas)}.hacs-app{max-width:1280px;margin:0 auto;padding:24px 32px 48px}.hacs-topbar{display:flex;align-items:center;gap:12px;padding:12px 16px;margin-bottom:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}.hacs-topbar h1{font-size:15px;margin:0;font-weight:600;letter-spacing:.01em}.hacs-seatchip{font-size:11px;font-weight:500;padding:2px 8px;border-radius:999px;background:var(--panel-fill);border:1px solid 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