:root{color-scheme:light;--bg: #f5f5f5;--panel: #ffffff;--panel-muted: #fafafa;--line: #dddddd;--line-strong: #c8c8c8;--text: #171717;--muted: #666666;--accent: #1f5aa6;--accent-soft: #eef4fb;--inspector-gap: 12px;font-family:Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--text)}button,input,code,pre{font:inherit}code,pre{font-family:Cascadia Code,Consolas,monospace}#app{width:100%}.page-shell{width:min(1280px,calc(100% - 32px));margin:0 auto;padding:24px 0 32px}.site-header,.filters-panel,.spec-card,.detail-panel,.empty-state{background:var(--panel);border:1px solid var(--line-strong)}.site-header{display:flex;justify-content:space-between;gap:20px;align-items:start;padding:18px 20px;border-radius:8px}.site-header h1,.spec-card h2,.detail-panel h2{margin:0;font-size:1rem;font-weight:600;letter-spacing:0}.site-header__copy{display:grid;gap:4px}.site-header__copy p,.spec-card p,.detail-panel 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