:root{--color-primary: #1e3a5f;--color-primary-light: #2c4c7a;--color-background: #ffffff;--color-surface: #f4f6f8;--color-surface-hover: #e9ecef;--color-border: #d1d5db;--color-text-main: #1f2937;--color-text-muted: #6b7280;--color-success: #10b981;--color-danger: #ef4444;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--color-background);color:var(--color-text-main);line-height:1.5;-webkit-font-smoothing:antialiased}button{font-family:var(--font-family);cursor:pointer;border:none;background:none}ul{list-style:none}a{text-decoration:none;color:inherit}.container{max-width:1400px;margin:0 auto;padding:0 2rem}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:.5rem}.gap-4{gap:1rem}.gap-6{gap:1.5rem}.gap-8{gap:2rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:var(--radius-md);font-weight:500;transition:all .2s ease;font-size:.95rem}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-light)}.btn-success{background-color:var(--color-success);color:#fff}.btn-danger{background-color:var(--color-danger);color:#fff}.btn-outline{border:1px solid var(--color-border);background-color:#fff;color:var(--color-text-main)}.btn-outline:hover{background-color:var(--color-surface)}.text-h1{font-size:2rem;font-weight:700;color:var(--color-primary)}.text-h2{font-size:1.5rem;font-weight:600;color:var(--color-primary)}.text-h3{font-size:1.25rem;font-weight:600;color:var(--color-primary)}.text-muted{color:var(--color-text-muted)}.text-sm{font-size:.875rem}.font-medium{font-weight:500}.font-semibold{font-weight:600}.card{background-color:#fff;border-radius:var(--radius-lg);border:1px solid var(--color-border);padding:1.5rem;box-shadow:var(--shadow-sm)}.card-hover:hover{box-shadow:var(--shadow-md);border-color:var(--color-primary-light)}@keyframes pulse{0%{transform:scale(1);opacity:1}50%{transform:scale(1.1);opacity:.8}to{transform:scale(1);opacity:1}}.animate-pulse{animation:pulse 2s infinite}.app-header{background-color:#fff;border-bottom:1px solid var(--color-border);padding:2rem 0}.app-main{padding:2rem 0}.three-column-grid{display:grid;grid-template-columns:350px 1fr 400px;gap:1.5rem;height:calc(100vh - 250px);min-height:600px}@media (max-width: 1200px){.three-column-grid{grid-template-columns:1fr;height:auto}}