:root{--bg: #f8fafc;--bg-card: #ffffff;--bg-card-hover: #f1f5f9;--border: #e2e8f0;--text: #0f172a;--text-muted: #64748b;--green: #16a34a;--red: #dc2626;--blue: #2563eb;--blue-light: #eff6ff;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--radius: 12px;--font: "Inter", system-ui, sans-serif}[data-theme=dark]{--bg: #0f172a;--bg-card: #1e293b;--bg-card-hover: #263347;--border: #334155;--text: #f1f5f9;--text-muted: #94a3b8;--green: #22c55e;--red: #ef4444;--blue: #3b82f6;--blue-light: rgba(59,130,246,.1);--shadow: 0 1px 3px rgba(0,0,0,.4)}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font);min-height:100vh;line-height:1.6;transition:background .2s,color .2s}.container{max-width:1100px;margin:0 auto;padding:0 1.5rem 4rem}header{padding:1.5rem 0 1rem;border-bottom:1px solid var(--border);margin-bottom:2rem;display:flex;align-items:flex-start;justify-content:space-between;gap:1rem}header .header-text 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