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

:root {
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --border-color: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Top Navbar */
.navbar-custom {
    background-color: rgba(30, 41, 59, 0.8) !important;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

.navbar-custom .navbar-brand {
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: -0.025em;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar-custom .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem !important;
    border-radius: 0.375rem;
    transition: var(--transition-fast);
}

.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
    color: var(--text-primary) !important;
    background-color: rgba(99, 102, 241, 0.1);
}

/* Premium Button style */
.btn-gradient {
    background: var(--primary-gradient);
    color: white !important;
    border: none;
    font-weight: 600;
    padding: 0.625rem 1.25rem;
    border-radius: 0.375rem;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.4);
    transition: var(--transition-normal);
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.6);
}

.btn-gradient:active {
    transform: translateY(0);
}

.btn-outline-custom {
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    background-color: transparent;
    font-weight: 600;
    padding: 0.625rem 1.25rem;
    border-radius: 0.375rem;
    transition: var(--transition-fast);
}

.btn-outline-custom:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--text-secondary);
    color: white;
}

/* Layout Main */
main {
    flex: 1;
    padding: 2.5rem 0;
}

/* Blog Cards */
.blog-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(99, 102, 241, 0.3);
}

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

.blog-card-title {
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

.blog-card-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.blog-card-title a:hover {
    color: var(--primary-color);
}

.blog-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.blog-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.blog-summary {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

/* Badges */
.badge-custom {
    padding: 0.35em 0.65em;
    font-weight: 600;
    font-size: 0.75rem;
    border-radius: 0.375rem;
}

.badge-pdf {
    background-color: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-published {
    background-color: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-draft {
    background-color: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Detail View */
.blog-detail-container {
    max-width: 800px;
    margin: 0 auto;
}

.blog-detail-title {
    font-weight: 800;
    font-size: 2.5rem;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.blog-content {
    font-size: 1.125rem;
    line-height: 1.8;
    color: #e2e8f0;
}

.blog-content p {
    margin-bottom: 1.5rem;
}

.pdf-viewer-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin: 2.5rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

/* Forms */
.form-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.form-control-custom {
    background-color: #0f172a !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    transition: var(--transition-fast);
}

.form-control-custom:focus {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25) !important;
}

/* Admin Dashboard Stats Card */
.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(99, 102, 241, 0.2);
}

.stat-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
}

.stat-info h5 {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-info h2 {
    font-weight: 700;
    margin: 0;
}

/* DataTables Styling Overrides */
.table-responsive-custom {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
}

table.dataTable {
    border-collapse: collapse !important;
    width: 100% !important;
    color: var(--text-primary) !important;
}

table.dataTable thead th {
    background-color: #0f172a !important;
    color: var(--text-primary) !important;
    border-bottom: 1px solid var(--border-color) !important;
    padding: 1rem !important;
    font-weight: 600;
}

table.dataTable tbody td {
    background-color: var(--bg-card) !important;
    border-bottom: 1px solid var(--border-color) !important;
    padding: 1rem !important;
    color: var(--text-secondary);
}

table.dataTable tbody tr:hover td {
    background-color: rgba(255, 255, 255, 0.02) !important;
    color: var(--text-primary);
}

.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_processing,
.dataTables_wrapper .dataTables_paginate {
    color: var(--text-secondary) !important;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.dataTables_wrapper .dataTables_filter input {
    background-color: #0f172a !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    border-radius: 0.375rem;
    padding: 0.4rem 0.8rem;
    margin-left: 0.5rem;
}

.dataTables_wrapper .dataTables_length select {
    background-color: #0f172a !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    border-radius: 0.375rem;
    padding: 0.4rem;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    color: var(--text-secondary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 0.375rem !important;
    background-color: transparent !important;
    margin: 0 2px;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: var(--primary-gradient) !important;
    color: white !important;
    border-color: transparent !important;
}

/* Custom Page Title */
.page-title {
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer {
    background-color: #0f172a;
    border-top: 1px solid var(--border-color) !important;
    padding: 1.5rem 0;
    color: var(--text-secondary);
}

/* Pagination public styling */
.pagination-custom .page-link {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    transition: var(--transition-fast);
}

.pagination-custom .page-link:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.pagination-custom .page-item.active .page-link {
    background: var(--primary-gradient);
    border-color: transparent;
    color: white;
}

.pagination-custom .page-item.disabled .page-link {
    background-color: #0f172a;
    color: #475569;
    border-color: var(--border-color);
}