:root{--color-bg: #f4f7fb;--color-surface: #ffffff;--color-border: #dbe4f0;--color-text: #16233a;--color-text-muted: #5b6b85;--color-accent: #1d4ed8;--color-accent-dark: #14326b;--color-accent-soft: #e8eefc;--color-success: #1a7a4c;--color-success-soft: #e3f5ea;--color-warning: #b0680a;--color-warning-soft: #fbedd9;--color-error: #c23a3a;--color-error-soft: #fbe7e7;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--radius: 6px;--shadow-card: 0 1px 2px rgba(20, 50, 107, .06)}*{box-sizing:border-box}body{margin:0;font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased}h1,h2,h3{font-weight:600;letter-spacing:-.01em;margin:0 0 12px}h1{font-size:1.5rem}h2{font-size:1.25rem}h3{font-size:1.05rem}p{line-height:1.5}.muted{color:var(--color-text-muted);font-size:.92rem}.hint{color:var(--color-text-muted);font-size:.8rem;margin-top:2px}.app-shell{display:flex;min-height:100vh}.sidebar{width:240px;flex-shrink:0;background:var(--color-accent-dark);color:#eef1f0;display:flex;flex-direction:column;padding:20px 0}.sidebar-brand{font-weight:700;font-size:1.1rem;padding:0 20px 20px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:12px}.sidebar nav{display:flex;flex-direction:column;gap:2px;flex:1}.sidebar-link{color:#cfd8d6;text-decoration:none;padding:10px 20px;font-size:.92rem;border-left:3px solid transparent}.sidebar-link:hover{background:#ffffff0f;color:#fff}.sidebar-link.active{background:#ffffff17;border-left-color:#7fa7a0;color:#fff}.sidebar-footer{padding:16px 20px 0;border-top:1px solid 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900px){.profile-grid{grid-template-columns:1fr}.app-content{padding:20px}.app-shell{flex-direction:column}.sidebar{width:100%}}.profile-photo-card{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px}.profile-photo{width:140px;height:140px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--color-border);margin-bottom:8px}.profile-photo.placeholder{display:flex;align-items:center;justify-content:center;color:var(--color-text-muted);background:var(--color-bg);font-size:.8rem}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-top:16px}.stat-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:18px}.stat-value{font-size:1.8rem;font-weight:700;color:var(--color-accent-dark)}.stat-label{font-size:.82rem;color:var(--color-text-muted);margin-top:4px}.data-table{width:100%;border-collapse:collapse;background:var(--color-surface);border:1px solid 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