/* ============================================
   Alumni MA Nurul Ummah - Custom Styles
   Mobile-First, Modern, Clean Design
   ============================================ */

:root {
    --primary: #1a56db;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary: #6b7280;
    --success: #059669;
    --warning: #d97706;
    --danger: #dc2626;
    --info: #0891b2;
    --light: #f9fafb;
    --dark: #111827;
    --border: #e5e7eb;
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --radius: 0.75rem;
    --radius-sm: 0.5rem;
    --transition: all 0.2s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ============================================
   Navbar
   ============================================ */
.navbar {
    padding: 0.75rem 0;
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-size: 1.1rem;
    letter-spacing: -0.025em;
}

.nav-link {
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1rem !important;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: rgba(255,255,255,0.9) !important;
}

.dropdown-menu {
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.5rem;
    box-shadow: var(--shadow-lg);
}

.dropdown-item {
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.dropdown-item:hover {
    background-color: var(--light);
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 4rem 0 3rem;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: rgba(255,255,255,0.03);
    border-radius: 50%;
}

.hero-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1rem;
    opacity: 0.9;
    max-width: 600px;
}

/* ============================================
   Cards
   ============================================ */
.card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-header {
    background: white;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    padding: 1rem 1.25rem;
}

.card-body {
    padding: 1.25rem;
}

/* ============================================
   Stat Cards
   ============================================ */
.stat-card {
    background: white;
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--secondary);
    font-weight: 500;
}

/* ============================================
   Alumni Cards
   ============================================ */
.alumni-card {
    background: white;
            border-radius: var(--radius);
            padding: 1.25rem;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            height: 100%;
}

.alumni-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.alumni-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.1rem;
}

.alumni-name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.alumni-info {
    font-size: 0.85rem;
    color: var(--secondary);
}

/* ============================================
   Badges
   ============================================ */
.badge-status {
    padding: 0.35rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-pending {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-verified {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-rejected {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-paid {
    background-color: #d1fae5;
    color: #065f46;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    font-weight: 500;
    border-radius: var(--radius-sm);
    padding: 0.5rem 1.25rem;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

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

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

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

/* ============================================
   Forms
   ============================================ */
.form-control,
.form-select {
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    padding: 0.625rem 1rem;
    font-size: 0.9rem;
    transition: var(--transition);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-label {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--dark);
    margin-bottom: 0.375rem;
}

/* ============================================
   Tables
   ============================================ */
.table {
    font-size: 0.9rem;
}

.table th {
    font-weight: 600;
    color: var(--secondary);
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            border-bottom-width: 1px;
}

.table td {
    vertical-align: middle;
    padding: 0.75rem;
}

/* ============================================
   Progress Bar
   ============================================ */
.progress {
    height: 8px;
    border-radius: 4px;
    background-color: #e5e7eb;
}

.progress-bar {
    border-radius: 4px;
}

/* ============================================
   Donation Card
   ============================================ */
.donation-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.donation-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.donation-card .card-img-top {
    height: 180px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.donation-card .card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.donation-card .card-footer {
    background: white;
    border-top: 1px solid var(--border);
    padding: 1rem 1.25rem;
}

/* ============================================
   Page Header
   ============================================ */
.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 2.5rem 0;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
}

.page-header p {
    opacity: 0.9;
    margin-bottom: 0;
}

/* ============================================
   Breadcrumb
   ============================================ */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin: 0;
    font-size: 0.85rem;
}

.breadcrumb-item a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
}

.breadcrumb-item.active {
    color: white;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: rgba(255,255,255,0.5);
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
}

.empty-state i {
    font-size: 3rem;
    color: #d1d5db;
    margin-bottom: 1rem;
}

.empty-state h5 {
    color: var(--secondary);
    font-weight: 600;
}

.empty-state p {
    color: #9ca3af;
    font-size: 0.9rem;
}

/* ============================================
   Alert
   ============================================ */
.alert {
    border-radius: var(--radius-sm);
    border: none;
    font-size: 0.9rem;
}

/* ============================================
   Section
   ============================================ */
.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--secondary);
    font-size: 0.95rem;
}

/* ============================================
   Feature Cards (Tentang)
   ============================================ */
.feature-card {
    text-align: center;
    padding: 2rem 1.5rem;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 1.25rem;
}

/* ============================================
   Admin Sidebar
   ============================================ */
.admin-sidebar {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    overflow: hidden;
}

.admin-sidebar .nav-link {
    color: var(--dark);
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    border-left: 3px solid transparent;
    transition: var(--transition);
}

.admin-sidebar .nav-link:hover {
            background-color: var(--light);
            border-left-color: var(--primary-light);
}

.admin-sidebar .nav-link.active {
            background-color: #eff6ff;
            border-left-color: var(--primary);
            color: var(--primary);
            font-weight: 600;
}

.admin-sidebar .nav-link i {
    width: 20px;
    text-align: center;
    margin-right: 0.5rem;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .hero-section {
        padding: 2.5rem 0 2rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .page-header {
        padding: 2rem 0;
    }
    
    .page-header h1 {
        font-size: 1.35rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.25rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .hero-title {
        font-size: 1.3rem;
    }
    
    .btn {
        padding: 0.4rem 1rem;
        font-size: 0.85rem;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .navbar,
    .footer,
    .btn,
    .no-print {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .card {
        border: 1px solid #ccc;
        box-shadow: none;
    }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease forwards;
}

/* ============================================
   Loading Spinner
   ============================================ */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* ============================================
   Scrollbar
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}