:root{--bg: #0f1115;--surface: #171a21;--surface-2: #1f232c;--border: #2a2f3a;--text: #e7e9ee;--text-dim: #9aa3b2;--accent: #6366f1;--danger: #f87171;--action: #fbbf24;--client: #38bdf8;--schedule: #c084fc;--ok: #34d399;--radius: 12px;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,system-ui,sans-serif;font-size:14px;-webkit-font-smoothing:antialiased}.app{display:flex;flex-direction:column;min-height:100%}.topbar{display:flex;align-items:center;gap:16px;padding:10px 16px;border-bottom:1px solid var(--border);background:var(--surface);position:sticky;top:0;z-index:10;padding-top:max(10px,env(safe-area-inset-top))}.brand{display:flex;align-items:center;gap:8px;font-weight:700}.brand-sub{color:var(--text-dim);font-weight:500;font-size:12px}.topnav{display:flex;gap:4px;margin-left:8px}.topnav button,.viewer-switch 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