/* CSS Reset and Variables */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-light: #94a3b8;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --border: #e2e8f0;
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header & Navigation */
header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
}

.logo-icon {
    background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
    color: white;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.25rem;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.2);
}

.logo-text {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.925rem;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary);
    background-color: var(--bg-primary);
}

.nav-link.active {
    color: var(--primary);
    font-weight: 600;
    background-color: var(--primary-light);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
}

/* Page Layout */
.app-container {
    flex: 1;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.page-title-area {
    margin-bottom: 2rem;
}

.page-title {
    font-size: 1.875rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 0.975rem;
    margin-top: 0.25rem;
}

/* Grid & Dashboard Metrics */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.metric-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--primary);
    opacity: 0;
    transition: var(--transition);
}

.metric-card:hover::before {
    opacity: 1;
}

.metric-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.metric-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    color: var(--text-secondary);
}

.metric-icon {
    font-size: 1.25rem;
    color: var(--primary);
    background-color: var(--primary-light);
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.metric-footer {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Dashboard Core Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 1.5rem;
    align-items: start;
}

/* Sidebar / Forms Panel */
.forms-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background-color: #fafbfc;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Forms styling */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 0.65rem 0.85rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: none;
    transition: var(--transition);
    font-family: var(--font-sans);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-sans);
    text-decoration: none;
    width: 100%;
}

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

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

.btn-secondary {
    background-color: var(--bg-primary);
    border-color: var(--border);
    color: var(--text-secondary);
}

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

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

.btn-danger:hover {
    background-color: #dc2626;
}

/* Tabs Navigation */
.tabs-nav {
    display: flex;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1.5rem;
    gap: 1.5rem;
}

.tab-btn {
    background: none;
    border: none;
    padding: 0.75rem 0.25rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

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

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

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary);
}

/* Tables and Data Displays */
.table-container {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    box-shadow: var(--shadow-sm);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.data-table th {
    background-color: #fafbfc;
    padding: 1rem 1.25rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.data-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    white-space: nowrap;
}

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

.data-table tbody tr:hover {
    background-color: #f8fafc;
}

/* Badges styling */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
}

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

.badge-success {
    background-color: var(--success-light);
    color: var(--success);
}

.badge-warning {
    background-color: var(--warning-light);
    color: var(--warning);
}

.badge-danger {
    background-color: var(--danger-light);
    color: var(--danger);
}

/* Actions cell buttons */
.action-btn {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.action-btn:hover {
    color: var(--danger);
    background-color: var(--danger-light);
}

/* Info Alert */
.alert-info {
    background-color: var(--primary-light);
    border: 1px solid #93c5fd;
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    color: #1e40af;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.alert-info-icon {
    font-size: 1.2rem;
    margin-top: 0.1rem;
}

/* Legal Page Styling (Privacy Policy, Terms) */
.legal-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 3rem 2.5rem;
    box-shadow: var(--shadow-sm);
}

.legal-content h2 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.legal-content p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.7;
    font-size: 0.975rem;
}

.legal-content ul, .legal-content ol {
    margin-left: 1.5rem;
    margin-bottom: 1.25rem;
    color: var(--text-secondary);
}

.legal-content li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.legal-footer-note {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-light);
}

/* Contact Page Layout */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 2rem;
    align-items: start;
}

.contact-info-cards {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.info-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: flex;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
}

.info-card-icon {
    font-size: 1.5rem;
    color: var(--primary);
    background-color: var(--primary-light);
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-card-title {
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
}

.info-card-content {
    color: var(--text-secondary);
    font-size: 0.925rem;
    line-height: 1.5;
}

.info-card-content a {
    color: var(--primary);
    text-decoration: none;
}

.info-card-content a:hover {
    text-decoration: underline;
}

/* Contact Form Alerts */
.contact-alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
    font-size: 0.925rem;
    display: none;
}

.contact-alert-success {
    background-color: var(--success-light);
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.contact-alert-error {
    background-color: var(--danger-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Empty States */
.empty-state {
    padding: 3rem 2rem;
    text-align: center;
    color: var(--text-light);
}

.empty-state-icon {
    font-size: 2.5rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.empty-state-title {
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.empty-state-desc {
    font-size: 0.85rem;
}

/* Footer Section */
footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    margin-top: auto;
    padding: 2.5rem 1.5rem;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--primary);
}

.footer-divider {
    height: 1px;
    background-color: var(--border);
    width: 100%;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-light);
}

/* Responsive Rules */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-container {
        position: relative;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-secondary);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 1.5rem;
        box-shadow: var(--shadow-lg);
        gap: 1rem;
    }
    
    .main-nav.active {
        display: flex;
    }
    
    .legal-container {
        padding: 2rem 1.5rem;
    }
    
    .footer-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.25rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
}