/* ===== CSS Variables ===== */
:root {
    /* Colors - Bangladesh flag inspired */
    --primary-green: #006a4e;
    --primary-red: #f42a41;
    --primary-dark: #004d3a;
    --secondary-green: #00875a;
    
    /* Neutral Colors */
    --bg-primary: #f8fafb;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --border-color: #e2e8f0;
    
    /* Accent Colors */
    --accent-blue: #3182ce;
    --accent-yellow: #f6ad55;
    --accent-purple: #805ad5;
    
    /* Status Colors */
    --status-active: #48bb78;
    --status-pending: #ecc94b;
    --status-review: #4299e1;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Noto Sans Bengali', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--primary-green);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===== Header ===== */
.header {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-lg) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

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

.logo-icon {
    font-size: 2.5rem;
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.logo-bengali {
    font-size: 0.875rem;
    opacity: 0.9;
    font-family: 'Noto Sans Bengali', sans-serif;
}

.motto {
    text-align: right;
}

.tagline {
    font-size: 0.875rem;
    opacity: 0.9;
    font-weight: 300;
}

.initiative {
    font-size: 0.75rem;
    opacity: 0.8;
    font-weight: 400;
    font-style: italic;
    margin-top: var(--spacing-xs);
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary-green) 50%, var(--bg-primary) 100%);
    color: white;
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.hero h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero > .container > p {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
}

.stat {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-radius: var(--radius-lg);
    min-width: 140px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    opacity: 0.8;
    margin-top: var(--spacing-xs);
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    padding: var(--spacing-2xl) 0;
}

/* ===== Tabs ===== */
.tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-sm);
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    transition: all var(--transition-fast);
    position: relative;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: transparent;
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.tab-btn:hover {
    color: var(--primary-green);
    background: rgba(0, 106, 78, 0.05);
}

.tab-btn.active {
    color: var(--primary-green);
    background: rgba(0, 106, 78, 0.08);
}

.tab-btn.active::after {
    background: var(--primary-green);
}

.tab-icon {
    font-size: 1.25rem;
}

/* ===== Tab Content ===== */
.tab-content {
    min-height: 400px;
}

.tab-pane {
    display: none;
    animation: fadeIn var(--transition-normal);
}

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

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

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

.tab-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.tab-header p {
    color: var(--text-muted);
}

/* ===== Cards Grid ===== */
.cards-grid {
    min-height: 200px;
}

.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.loading {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--text-muted);
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-lg);
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--primary-green);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-btn:hover:not(.disabled) {
    background: var(--primary-green);
    color: white;
    border-color: var(--primary-green);
}

.pagination-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    color: var(--text-muted);
}

.pagination-numbers {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.pagination-num {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-num:hover {
    border-color: var(--primary-green);
    color: var(--primary-green);
}

.pagination-num.active {
    background: var(--primary-green);
    border-color: var(--primary-green);
    color: white;
}

.pagination-ellipsis {
    padding: 0 var(--spacing-sm);
    color: var(--text-muted);
}

/* ===== Card ===== */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-green);
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-green) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.card-title-group {
    flex: 1;
    min-width: 0;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

.card-category {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-body {
    padding: var(--spacing-lg);
    flex: 1;
}

.card-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-primary);
}

.card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.card-status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: capitalize;
}

.card-status.active {
    background: rgba(72, 187, 120, 0.15);
    color: var(--status-active);
}

.card-status.pending {
    background: rgba(236, 201, 75, 0.15);
    color: #b7791f;
}

.card-status.review {
    background: rgba(66, 153, 225, 0.15);
    color: var(--status-review);
}

.card-status.new {
    background: rgba(128, 90, 213, 0.15);
    color: var(--accent-purple);
}

.card-arrow {
    color: var(--primary-green);
    font-size: 1.25rem;
    transition: transform var(--transition-fast);
}

.card:hover .card-arrow {
    transform: translateX(4px);
}

/* ===== Empty State ===== */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-3xl);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--border-color);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state h4 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--text-muted);
    max-width: 400px;
    margin: 0 auto;
}

/* ===== CTA Section ===== */
.cta {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.cta h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.cta > .container > p {
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: var(--bg-primary);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    color: white;
}

/* ===== Footer ===== */
.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 600;
}

.footer-text {
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-links span {
    color: rgba(255, 255, 255, 0.3);
}

.copyright {
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.6;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .header .container {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .logo {
        justify-content: center;
    }
    
    .motto {
        text-align: center;
    }
    
    .hero {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero h2 {
        font-size: 1.5rem;
        padding: 0 var(--spacing-sm);
    }
    
    .hero > .container > p {
        font-size: 1rem;
        padding: 0 var(--spacing-sm);
    }
    
    .hero-stats {
        gap: var(--spacing-md);
    }
    
    .stat {
        padding: var(--spacing-md) var(--spacing-lg);
        min-width: 100px;
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .tabs {
        justify-content: center;
    }
    
    .tab-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.875rem;
    }
    
    .cards-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .pagination-numbers {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: var(--spacing-sm);
    }
    
    .cta {
        padding: var(--spacing-2xl) 0;
    }
    
    .cta h3 {
        font-size: 1.5rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .footer-content {
        padding-bottom: var(--spacing-lg);
        margin-bottom: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .header {
        padding: var(--spacing-md) 0;
    }
    
    .logo-icon {
        font-size: 2rem;
    }
    
    .logo-text h1 {
        font-size: 1.125rem;
    }
    
    .logo-bengali {
        font-size: 0.75rem;
    }
    
    .tagline {
        font-size: 0.75rem;
    }
    
    .initiative {
        font-size: 0.65rem;
    }
    
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .hero h2 {
        font-size: 1.25rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .stat {
        min-width: 80%;
        padding: var(--spacing-md);
    }
    
    .tab-text {
        display: none;
    }
    
    .tab-btn {
        padding: var(--spacing-md);
    }
    
    .tab-icon {
        font-size: 1.5rem;
    }
    
    .tab-header h3 {
        font-size: 1.25rem;
    }
    
    .card-header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .card-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
    
    .card-title {
        font-size: 1rem;
    }
    
    .card-body {
        padding: var(--spacing-md);
    }
    
    .card-footer {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    /* Detail page mobile */
    .detail-header {
        padding: var(--spacing-lg);
    }
    
    .detail-header h1 {
        font-size: 1.25rem;
    }
    
    .detail-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .detail-body {
        padding: var(--spacing-md);
    }
    
    .detail-section h2 {
        font-size: 1.1rem;
    }
    
    .detail-table {
        font-size: 0.875rem;
    }
    
    .detail-table th,
    .detail-table td {
        padding: var(--spacing-sm);
    }
}

/* ===== Detail Page Styles ===== */
.detail-page {
    padding: var(--spacing-2xl) 0;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-green);
    font-weight: 500;
    margin-bottom: var(--spacing-xl);
    transition: all var(--transition-fast);
}

.back-link:hover {
    color: var(--primary-dark);
    transform: translateX(-4px);
}

.detail-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.detail-header {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-2xl);
}

.detail-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    opacity: 0.9;
}

.detail-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.detail-body {
    padding: var(--spacing-2xl);
}

.detail-section {
    margin-bottom: var(--spacing-2xl);
}

.detail-section:last-child {
    margin-bottom: 0;
}

.detail-section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

.detail-section p,
.detail-section ul,
.detail-section ol {
    color: var(--text-secondary);
    line-height: 1.8;
}

.detail-section ul,
.detail-section ol {
    padding-left: var(--spacing-xl);
}

.detail-section li {
    margin-bottom: var(--spacing-sm);
}

.detail-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--spacing-md);
}

.detail-table th,
.detail-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.detail-table th {
    background: var(--bg-primary);
    font-weight: 600;
    color: var(--text-primary);
}

.detail-table td {
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .detail-header {
        padding: var(--spacing-xl);
    }
    
    .detail-header h1 {
        font-size: 1.5rem;
    }
    
    .detail-body {
        padding: var(--spacing-lg);
    }
}