:root{--primary-color: #2563eb;--primary-dark: #1e40af;--secondary-color: #0ea5e9;--success-color: #10b981;--warning-color: #f59e0b;--danger-color: #ef4444;--bg-color: #f8fafc;--card-bg: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--border-color: #e2e8f0;--shadow: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background-color:var(--bg-color);color:var(--text-primary);line-height:1.6}#root{min-height:100vh}.nav{background:var(--card-bg);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow);position:sticky;top:0;z-index:100}.nav-content{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}.nav-brand{font-size:1.5rem;font-weight:700;color:var(--primary-color);text-decoration:none}.nav-links{display:flex;gap:1rem;list-style:none}.nav-link{padding:.5rem 1rem;border-radius:.5rem;text-decoration:none;color:var(--text-secondary);font-weight:500;transition:all .2s}.nav-link:hover{background:var(--bg-color);color:var(--primary-color)}.nav-link.active{background:var(--primary-color);color:#fff}.container{max-width:1200px;margin:0 auto;padding:2rem}.container-wide{max-width:1400px;margin:0 auto;padding:2rem}.card{background:var(--card-bg);border-radius:1rem;box-shadow:var(--shadow-md);padding:2rem;margin-bottom:1.5rem}.card-header{border-bottom:1px solid var(--border-color);padding-bottom:1rem;margin-bottom:1.5rem}.card-title{font-size:1.5rem;font-weight:600;color:var(--text-primary)}.card-subtitle{font-size:.875rem;color:var(--text-secondary);margin-top:.25rem}.btn{padding:.75rem 1.5rem;border-radius:.5rem;border:none;font-weight:500;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;gap:.5rem;font-size:1rem}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-lg)}.btn-secondary{background:var(--secondary-color);color:#fff}.btn-secondary:hover{background:#0284c7;transform:translateY(-1px)}.btn-success{background:var(--success-color);color:#fff}.btn-danger{background:var(--danger-color);color:#fff}.btn-outline{background:transparent;border:2px solid var(--primary-color);color:var(--primary-color)}.btn-outline:hover{background:var(--primary-color);color:#fff}.btn:disabled{opacity:.5;cursor:not-allowed}.grid{display:grid;gap:1.5rem}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}@media (max-width: 768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}.stat-card{background:var(--card-bg);border-radius:1rem;box-shadow:var(--shadow);padding:1.5rem;border-left:4px solid var(--primary-color)}.stat-label{font-size:.875rem;color:var(--text-secondary);text-transform:uppercase;font-weight:500;letter-spacing:.05em}.stat-value{font-size:2rem;font-weight:700;color:var(--text-primary);margin-top:.5rem}.stat-description{font-size:.875rem;color:var(--text-secondary);margin-top:.5rem}.table-container{overflow-x:auto;border-radius:.5rem;border:1px solid var(--border-color)}table{width:100%;border-collapse:collapse}thead{background:var(--bg-color);border-bottom:2px solid var(--border-color)}th{padding:1rem;text-align:left;font-weight:600;color:var(--text-primary);font-size:.875rem;text-transform:uppercase;letter-spacing:.05em}td{padding:1rem;border-bottom:1px solid var(--border-color)}tbody tr:hover{background:var(--bg-color)}tbody tr:last-child td{border-bottom:none}.badge{display:inline-block;padding:.25rem .75rem;border-radius:9999px;font-size:.75rem;font-weight:600}.badge-primary{background:#dbeafe;color:#1e40af}.badge-success{background:#d1fae5;color:#065f46}.badge-warning{background:#fed7aa;color:#92400e}.badge-danger{background:#fee2e2;color:#991b1b}.alert{padding:1rem 1.5rem;border-radius:.5rem;margin-bottom:1rem;border-left:4px solid}.alert-success{background:#d1fae5;border-color:var(--success-color);color:#065f46}.alert-warning{background:#fed7aa;border-color:var(--warning-color);color:#92400e}.alert-danger{background:#fee2e2;border-color:var(--danger-color);color:#991b1b}.form-group{margin-bottom:1.5rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--text-primary)}.form-input,.form-select{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:.5rem;font-size:1rem;transition:border-color .2s}.form-input:focus,.form-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem;color:var(--text-secondary)}.spinner{width:48px;height:48px;border:4px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.text-center{text-align:center}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}.flex{display:flex}.flex-center{display:flex;align-items:center;justify-content:center}.flex-between{display:flex;align-items:center;justify-content:space-between}.gap-1{gap:.5rem}.gap-2{gap:1rem}.gap-3{gap:1.5rem}.text-primary{color:var(--primary-color)}.text-secondary{color:var(--text-secondary)}.text-success{color:var(--success-color)}.text-danger{color:var(--danger-color)}.font-bold{font-weight:700}.font-semibold{font-weight:600}.page-header{margin-bottom:2rem}.page-title{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:.5rem}.page-subtitle{font-size:1rem;color:var(--text-secondary)}@media (max-width: 768px){.container,.container-wide{padding:1rem}.card{padding:1.5rem}.nav-content{flex-direction:column;gap:1rem}.nav-links{flex-direction:column;width:100%}.nav-link{text-align:center}}