:root{--bg: #f8fafc;--panel: #ffffff;--panel-2: #f1f5f9;--border: #e2e8f0;--text: #1e293b;--muted: #64748b;--accent: #2563eb;--danger: #dc2626}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,sans-serif}body{display:flex;flex-direction:column;height:100vh}.topbar{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:10px 16px;background:var(--panel);border-bottom:1px solid var(--border)}.topbar h1{font-size:16px;margin:0;white-space:nowrap}#plan-select{max-width:240px;font-weight:600}.topbar button.icon{padding:6px 9px;font-size:14px;line-height:1}.menu{position:relative}.menu-list{position:absolute;right:0;top:calc(100% + 4px);background:var(--panel);border:1px solid var(--border);border-radius:8px;box-shadow:0 8px 24px #0000002e;padding:4px;display:flex;flex-direction:column;gap:2px;min-width:220px;z-index:40}.menu-list[hidden]{display:none}.menu-list 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