:root {
    --primary: #002AF5;
    --primary-dark: #001FBF;
    --primary-light: #E8EEFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F4F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0B1A33;
    --shadow: 0 4px 20px rgba(0, 42, 245, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 42, 245, 0.12);
    --radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #F5F7FC;
    color: var(--gray-900);
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    color: var(--primary-dark);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 42, 245, 0.3);
}

.btn-secondary {
    background: var(--primary-light);
    color: var(--primary);
}

.btn-secondary:hover {
    background: #D1DDFF;
}

.btn-success {
    background: #059669;
    color: white;
}

.btn-success:hover {
    background: #047857;
}

.btn-danger {
    background: #DC2626;
    color: white;
}

.btn-danger:hover {
    background: #B91C1C;
}

.btn-warning {
    background: #FEF3C7;
    color: #D97706;
}

.btn-warning:hover {
    background: #FDE68A;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--gray-200);
    color: var(--gray-600);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-sm {
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 0.8rem 2rem;
    font-size: 1.1rem;
}

/* Cards */
.card {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.card:hover {
    box-shadow: var(--shadow-hover);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.7rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: 0.15s;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 42, 245, 0.1);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

/* Tables */
.table-container {
    overflow-x: auto;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th {
    background: var(--gray-50);
    text-align: left;
    padding: 0.8rem 1rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--gray-500);
    font-weight: 600;
    border-bottom: 2px solid var(--gray-200);
}

table td {
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--gray-100);
}

table tr:last-child td {
    border-bottom: none;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background: #D1FAE5;
    color: #059669;
}

.badge-warning {
    background: #FEF3C7;
    color: #D97706;
}

.badge-danger {
    background: #FEE2E2;
    color: #DC2626;
}

.badge-info {
    background: #E8EEFF;
    color: #002AF5;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
}

.alert-success {
    background: #D1FAE5;
    color: #059669;
    border: 1px solid #A7F3D0;
}

.alert-danger {
    background: #FEE2E2;
    color: #DC2626;
    border: 1px solid #FECACA;
}

.alert-warning {
    background: #FEF3C7;
    color: #D97706;
    border: 1px solid #FDE68A;
}

.alert-info {
    background: #E8EEFF;
    color: #002AF5;
    border: 1px solid #D1DDFF;
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }

.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* Responsive */
@media (max-width: 768px) {
    .hide-mobile { display: none; }
    .flex-column-mobile { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }
}