/* ==========================================
   PSYCHOSOCIAL SUPPORT SYSTEM - STYLES
   University of Rwanda - Mastercard Foundation
   ========================================== */

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* University of Rwanda Colors */
    --ur-blue: #003d7a;
    --ur-gold: #c5a052;
    --ur-light-blue: #0066cc;
    
    /* Mastercard Foundation Colors */
    --mcf-red: #eb001b;
    --mcf-yellow: #f7a600;
    --mcf-orange: #ff6900;
    
    /* UI Colors */
    --primary: #003d7a;
    --secondary: #c5a052;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Work Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.2;
    color: var(--gray-900);
}

/* ==========================================
   NAVIGATION
   ========================================== */

.navbar {
    background: linear-gradient(135deg, var(--ur-blue) 0%, #002757 100%);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 4px solid var(--ur-gold);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 80px;
}

.nav-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.brand-logos {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.logo-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.ur-logo {
    background: var(--ur-gold);
    color: var(--ur-blue);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 20px;
    font-family: 'Poppins', sans-serif;
    box-shadow: 0 0 0 3px rgba(197, 160, 82, 0.2);
}

.mcf-logo {
    display: flex;
    gap: 4px;
}

.mcf-circle {
    width: 24px;
    height: 24px;
    border-radius: 50%;
}

.mcf-red {
    background: var(--mcf-red);
}

.mcf-yellow {
    background: var(--mcf-yellow);
    margin-left: -8px;
}

.logo-text {
    color: var(--white);
    font-size: 12px;
    font-weight: 500;
    max-width: 120px;
    line-height: 1.3;
}

.brand-separator {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
}

.system-title {
    color: var(--ur-gold);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-left: 52px;
}

.nav-links {
    display: flex;
    gap: var(--spacing-xs);
    flex: 1;
    justify-content: center;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
    background: var(--ur-gold);
    color: var(--ur-blue);
    box-shadow: 0 4px 12px rgba(197, 160, 82, 0.3);
}

.nav-link i {
    font-size: 16px;
}

.nav-user {
    display: flex;
    align-items: center;
}

.user-menu {
    position: relative;
}

.user-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition);
    font-family: inherit;
}

.user-btn:hover {
    background: rgba(255, 255, 255, 0.15);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--ur-gold);
    color: var(--ur-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
}

.user-name {
    font-weight: 500;
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-dropdown {
    position: absolute;
    top: calc(100% + var(--spacing-sm));
    right: 0;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 100;
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
}

.user-info strong {
    display: block;
    color: var(--gray-900);
    font-size: 15px;
}

.user-role {
    display: block;
    color: var(--gray-500);
    font-size: 13px;
    margin-top: var(--spacing-xs);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--gray-700);
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-item:hover {
    background: var(--gray-50);
}

.dropdown-item.text-danger {
    color: var(--danger);
}

.dropdown-divider {
    height: 1px;
    background: var(--gray-200);
    margin: var(--spacing-sm) 0;
}

/* ==========================================
   ALERTS
   ========================================== */

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-md);
    animation: slideDown 0.3s ease-out;
    position: relative;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--success);
}

.alert-danger {
    background: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border-left: 4px solid var(--warning);
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--info);
}

.alert i {
    font-size: 20px;
}

.alert-close {
    position: absolute;
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: inherit;
    opacity: 0.5;
    transition: var(--transition);
}

.alert-close:hover {
    opacity: 1;
}

/* ==========================================
   MAIN CONTENT
   ========================================== */

.main-content {
    min-height: calc(100vh - 180px);
    padding: var(--spacing-2xl);
}

.main-content.with-nav {
    padding-top: var(--spacing-2xl);
}

.page-header {
    margin-bottom: var(--spacing-2xl);
}

.page-title {
    font-size: 32px;
    color: var(--ur-blue);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.page-title i {
    color: var(--ur-gold);
}

.page-subtitle {
    color: var(--gray-600);
    font-size: 16px;
}

/* ==========================================
   CARDS & CONTAINERS
   ========================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

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

.card-header {
    border-bottom: 2px solid var(--gray-100);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 20px;
    color: var(--ur-blue);
    font-weight: 600;
}

.card-body {
    padding: var(--spacing-md) 0;
}

/* ==========================================
   STATS GRID
   ========================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--ur-blue);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, rgba(197, 160, 82, 0.1) 0%, transparent 100%);
    border-radius: 0 var(--radius-xl) 0 100%;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.stat-card.primary {
    border-left-color: var(--primary);
}

.stat-card.success {
    border-left-color: var(--success);
}

.stat-card.warning {
    border-left-color: var(--warning);
}

.stat-card.danger {
    border-left-color: var(--danger);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.stat-card.primary .stat-icon {
    background: linear-gradient(135deg, var(--primary) 0%, #002757 100%);
    color: var(--white);
}

.stat-card.success .stat-icon {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    color: var(--white);
}

.stat-card.warning .stat-icon {
    background: linear-gradient(135deg, var(--warning) 0%, #d97706 100%);
    color: var(--white);
}

.stat-card.danger .stat-icon {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    color: var(--white);
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--ur-blue);
    margin-bottom: var(--spacing-xs);
    line-height: 1;
}

.stat-label {
    color: var(--gray-600);
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ==========================================
   TABLES
   ========================================== */

.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
}

thead {
    background: linear-gradient(135deg, var(--ur-blue) 0%, #002757 100%);
    color: var(--white);
}

thead th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 0.5px;
}

tbody tr {
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition);
}

tbody tr:hover {
    background: var(--gray-50);
}

tbody td {
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--gray-700);
}

/* ==========================================
   FORMS
   ========================================== */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-700);
    font-weight: 500;
    font-size: 14px;
}

.form-label.required::after {
    content: ' *';
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 15px;
    transition: var(--transition);
    background: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--ur-blue);
    box-shadow: 0 0 0 3px rgba(0, 61, 122, 0.1);
}

.form-control:disabled {
    background: var(--gray-100);
    cursor: not-allowed;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

select.form-control {
    cursor: pointer;
}

.form-text {
    display: block;
    margin-top: var(--spacing-xs);
    color: var(--gray-500);
    font-size: 13px;
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
    justify-content: center;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--ur-blue) 0%, #002757 100%);
    color: var(--white);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 61, 122, 0.3);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--ur-gold) 0%, #a88642 100%);
    color: var(--ur-blue);
}

.btn-secondary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(197, 160, 82, 0.3);
}

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

.btn-success:hover:not(:disabled) {
    background: #059669;
}

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

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--ur-blue);
    color: var(--ur-blue);
}

.btn-outline:hover:not(:disabled) {
    background: var(--ur-blue);
    color: var(--white);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 14px;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 18px;
}

.btn-block {
    width: 100%;
}

/* ==========================================
   BADGES & STATUS
   ========================================== */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: rgba(0, 61, 122, 0.1);
    color: var(--ur-blue);
}

.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(197, 160, 82, 0.1);
    color: var(--ur-gold);
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
    background: linear-gradient(135deg, var(--ur-blue) 0%, #002757 100%);
    color: var(--white);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    margin-top: auto;
    border-top: 4px solid var(--ur-gold);
}

.footer-content p {
    margin-bottom: var(--spacing-xs);
}

.footer-note {
    color: var(--ur-gold);
    font-size: 13px;
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-muted {
    color: var(--gray-500);
}

.text-primary {
    color: var(--ur-blue);
}

.text-success {
    color: var(--success);
}

.text-danger {
    color: var(--danger);
}

.text-warning {
    color: var(--warning);
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-2 {
    gap: var(--spacing-md);
}

.gap-3 {
    gap: var(--spacing-lg);
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 1024px) {
    .nav-container {
        flex-wrap: wrap;
    }
    
    .nav-links {
        order: 3;
        width: 100%;
        justify-content: flex-start;
        padding-top: var(--spacing-md);
        overflow-x: auto;
    }
}

@media (max-width: 768px) {
    .brand-logos {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .brand-separator {
        display: none;
    }
    
    .system-title {
        font-size: 12px;
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .main-content {
        padding: var(--spacing-lg);
    }
    
    .page-title {
        font-size: 24px;
    }
}