/* ========== RESET & BASE ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --secondary: #64748B;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;
    --light: #F8FAFC;
    --dark: #1E293B;
    --border: #E2E8F0;
    --shadow: rgba(0, 0, 0, 0.1);
}

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

/* ========== LOGIN PAGE ========== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header .logo {
    display: inline-flex;
    margin-bottom: 16px;
}

.login-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.login-header p {
    font-size: 14px;
    color: var(--secondary);
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--dark);
    margin-bottom: 8px;
}

.login-form input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* ========== NAVBAR ========== */
.navbar {
    background: white;
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px var(--shadow);
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
}

.navbar-menu {
    display: flex;
    gap: 24px;
}

.navbar-menu a {
    color: var(--secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    color: var(--primary);
}

/* ========== CONTAINER ========== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px 24px;
}

/* ========== PAGE HEADER ========== */
.page-header {
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
}

.page-header p {
    font-size: 14px;
    color: var(--secondary);
}

/* ========== STATS GRID ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 1px 3px var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon.blue {
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
}

.stat-icon.green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.stat-icon.yellow {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.stat-icon.red {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.stat-info {
    flex: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--secondary);
    margin-bottom: 4px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark);
}

.stat-value.green {
    color: var(--success);
}

.stat-value.yellow {
    color: var(--warning);
}

.stat-value.red {
    color: var(--danger);
}

/* ========== CARD ========== */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 1px 3px var(--shadow);
    margin-bottom: 24px;
}

.card-header {
    padding: 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.card-header h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--dark);
}

.card-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* ========== INPUTS ========== */
.search-input,
.select-input,
.date-input {
    padding: 10px 16px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
}

.search-input {
    min-width: 250px;
}

.search-input:focus,
.select-input:focus,
.date-input:focus {
    outline: none;
    border-color: var(--primary);
}

/* ========== BUTTONS ========== */
.btn-primary,
.btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: var(--primary);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--light);
    color: var(--dark);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    background: var(--border);
}

.btn-small {
    padding: 8px 16px;
    font-size: 13px;
}

/* ========== TABLE ========== */
.table-responsive {
    overflow-x: auto;
}

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

.data-table thead {
    background: var(--light);
}

.data-table th {
    padding: 16px;
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 16px;
    border-top: 1px solid var(--border);
    font-size: 14px;
}

.data-table tbody tr:hover {
    background: var(--light);
}

/* ========== BADGES ========== */
.badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    text-transform: capitalize;
}

.badge.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.badge.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.badge.danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.badge.info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info);
}

.badge.secondary {
    background: rgba(100, 116, 139, 0.1);
    color: var(--secondary);
}

/* ========== LOADING ========== */
.loading {
    padding: 60px 24px;
    text-align: center;
}

.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading p {
    margin-top: 16px;
    color: var(--secondary);
}

/* ========== ERROR ========== */
.error-message {
    padding: 16px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    border-radius: 8px;
    color: var(--danger);
    font-size: 14px;
    margin: 16px 0;
}

/* ========== TABS ========== */
.tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--border);
}

.tab-btn {
    padding: 12px 24px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    font-size: 14px;
    font-weight: 600;
    color: var(--secondary);
    cursor: pointer;
    transition: all 0.2s;
}

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

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ========== STATS MINI ========== */
.stats-mini {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: var(--light);
    border-radius: 8px;
    margin-bottom: 16px;
}

.stat-mini {
    flex: 1;
    text-align: center;
    padding: 16px;
    background: white;
    border-radius: 8px;
    border: 2px solid var(--border);
}

.stat-mini.green {
    border-color: var(--success);
}

.stat-mini.red {
    border-color: var(--danger);
}

.stat-mini.yellow {
    border-color: var(--warning);
}

.stat-mini-label {
    display: block;
    font-size: 12px;
    color: var(--secondary);
    margin-bottom: 4px;
}

.stat-mini-value {
    display: block;
    font-size: 24px;
    font-weight: 700;
}

.stat-mini.green .stat-mini-value {
    color: var(--success);
}

.stat-mini.red .stat-mini-value {
    color: var(--danger);
}

.stat-mini.yellow .stat-mini-value {
    color: var(--warning);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .navbar-container {
        flex-direction: column;
        gap: 16px;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .card-actions {
        width: 100%;
    }

    .search-input {
        width: 100%;
        min-width: auto;
    }

    .tabs {
        overflow-x: auto;
    }

    .stats-mini {
        flex-direction: column;
    }
}