:root{--bg: #f1f5f9;--fg: #0f172a;--panel: #fff;--border: #e2e8f0;--muted: #64748b;--tab-bg: #fff;--tab-br: #cbd5e1;--th-bg: #f8fafc}[data-theme=dark]{--bg: #0f172a;--fg: #e2e8f0;--panel: #1e293b;--border: #334155;--muted: #94a3b8;--tab-bg: #1e293b;--tab-br: #475569;--th-bg: #334155}:root{font-family:system-ui,Segoe UI,Noto Sans,DejaVu Sans,sans-serif;line-height:1.5;color:var(--fg);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--fg)}.app-header{margin-bottom:.75rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}#root{max-width:1200px;margin:0 auto;padding:1.25rem}h1{margin:0 0 1rem;font-size:1.35rem;font-weight:650}.tabs{display:flex;gap:.35rem;flex-wrap:wrap;margin-bottom:1rem}.tab{border:1px solid var(--tab-br);background:var(--tab-bg);color:var(--fg);padding:.45rem 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