/* ============================================
   UDAAN SOCIETY - CAMPAIGNS PAGE STYLES
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #e74c3c;
    --primary-dark: #c0392b;
    --secondary: #f39c12;
    --dark: #2c3e50;
    --darker: #1a252f;
    --light: #ecf0f1;
    --lighter: #f8f9fa;
    --white: #ffffff;
    --gray: #95a5a6;
    --gray-light: #bdc3c7;
    --gray-dark: #7f8c8d;
    --success: #27ae60;
    --info: #3498db;
    --warning: #f39c12;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-progress: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.15);
    --shadow-hover: 0 12px 30px rgba(0,0,0,0.15);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Container */
    --container-max: 1400px;
    --container-padding: 5%;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: #333;
    background: var(--lighter);
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* Utility Classes */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.link-primary {
    color: var(--primary);
    transition: color var(--transition-base);
}

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

.link-arrow {
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 500;
    transition: gap var(--transition-base);
}

.link-arrow:hover {
    gap: var(--space-md);
}

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

.navbar {
    position: sticky;
    top: 0;
    background: var(--white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-md) var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 50px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    list-style: none;
}

.nav-links a {
    color: var(--dark);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown > a i {
    font-size: 0.75rem;
    transition: transform var(--transition-base);
}

.dropdown:hover > a i {
    transform: rotate(180deg);
}

.dropdown-content {
    position: absolute;
    top: calc(100% + var(--space-sm));
    left: 0;
    min-width: 200px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: var(--space-sm) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    list-style: none;
}

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

.dropdown-content a {
    display: block;
    padding: var(--space-sm) var(--space-lg);
    transition: background var(--transition-fast);
}

.dropdown-content a:hover {
    background: var(--lighter);
    color: var(--primary);
}

/* Donate Button */
.donate-btn {
    background: var(--gradient-primary);
    color: var(--white) !important;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.donate-btn i {
    font-size: 1.25rem;
}

.donate-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.donate-text span {
    font-weight: 600;
    font-size: 0.95rem;
}

.donate-text small {
    font-size: 0.7rem;
    opacity: 0.9;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    font-size: 1.5rem;
    color: var(--dark);
    padding: var(--space-sm);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    height: 400px;
    background: 
        linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)),
        url('https://images.unsplash.com/photo-1488521787991-ed7bbaae773c?w=1200') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    text-align: center;
    color: var(--white);
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    font-weight: 800;
}

/* ============================================
   BREADCRUMB
   ============================================ */

.breadcrumb {
    background: var(--white);
    padding: var(--space-md) 0;
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
}

.breadcrumb li:not(:last-child)::after {
    content: '»';
    margin-left: var(--space-sm);
    color: var(--gray);
}

.breadcrumb a {
    color: var(--primary);
}

.breadcrumb [aria-current="page"] {
    color: var(--gray-dark);
}

/* ============================================
   INTRO SECTION
   ============================================ */

.intro {
    text-align: center;
    padding: var(--space-3xl) 0;
}

.intro h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    text-transform: uppercase;
    margin-bottom: var(--space-lg);
    font-weight: 800;
    line-height: 1.3;
}

.intro h2 span {
    color: var(--primary);
}

.intro p {
    color: var(--gray-dark);
    font-size: 1.1rem;
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto;
}

/* ============================================
   STATS BAR
   ============================================ */

.stats-bar {
    background: var(--dark);
    padding: var(--space-2xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--secondary);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.stat-label {
    color: var(--gray-light);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   FILTER SECTION
   ============================================ */

.filter-section {
    background: var(--white);
    padding: var(--space-xl) 0;
    border-bottom: 1px solid #e0e0e0;
}

.filter-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    border: 2px solid #e0e0e0;
    background: var(--white);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

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

/* ============================================
   CONTROLS SECTION
   ============================================ */

.controls-section {
    background: var(--white);
    padding-bottom: var(--space-xl);
}

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

.search-box {
    position: relative;
    flex: 1;
    min-width: 250px;
    max-width: 400px;
}

.search-box i {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

.search-box input {
    width: 100%;
    padding: var(--space-md) var(--space-md) var(--space-md) 2.5rem;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    transition: border-color var(--transition-base);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
}

.sort-box {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.sort-box label {
    color: var(--gray-dark);
    font-size: 0.9rem;
}

.sort-box select {
    padding: var(--space-md);
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-md);
    background: var(--white);
    font-size: 0.9rem;
    cursor: pointer;
    min-width: 150px;
}

/* ============================================
   CAMPAIGNS GRID
   ============================================ */

.campaigns-section {
    padding: var(--space-2xl) 0;
}

.campaigns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

/* Campaign Card */
.campaign-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
}

.campaign-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

/* Card Image */
.card-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.campaign-card:hover .card-image img {
    transform: scale(1.05);
}

/* Badges */
.category-badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    background: var(--secondary);
    color: var(--dark);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.urgent-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: var(--primary);
    color: var(--white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Quick Donate Button */
.quick-donate {
    position: absolute;
    bottom: var(--space-md);
    right: var(--space-md);
    width: 45px;
    height: 45px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.8);
    transition: all var(--transition-base);
}

.campaign-card:hover .quick-donate {
    opacity: 1;
    transform: scale(1);
}

.quick-donate:hover {
    background: var(--primary-dark);
}

/* Card Body */
.card-body {
    padding: var(--space-lg);
}

/* Progress Section */
.progress-section {
    margin-bottom: var(--space-md);
}

.goal-text {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
    font-size: 0.9rem;
}

.raised-amount {
    color: var(--success);
    font-weight: 600;
}

.goal-amount {
    color: var(--dark);
    font-weight: 600;
}

.progress-bar {
    height: 8px;
    background: #e0e0e0;
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-progress);
    border-radius: var(--radius-full);
    position: relative;
    width: 0;
    transition: width 1s ease;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 20px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3));
}

/* Card Title & Description */
.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.4;
    margin-bottom: var(--space-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-description {
    color: var(--gray-dark);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--space-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Card Meta */
.card-meta {
    display: flex;
    gap: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid #eee;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.85rem;
    color: var(--gray-dark);
}

.meta-item i {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fef2f2;
    color: var(--primary);
    border-radius: 50%;
    font-size: 0.875rem;
}

/* No Results */
.no-results {
    text-align: center;
    padding: var(--space-3xl);
    color: var(--gray);
}

.no-results i {
    font-size: 4rem;
    margin-bottom: var(--space-md);
}

.no-results h3 {
    color: var(--dark);
    margin-bottom: var(--space-sm);
}

.btn-reset {
    margin-top: var(--space-md);
    padding: var(--space-sm) var(--space-lg);
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: background var(--transition-base);
}

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

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
}

.page-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #ddd;
    background: var(--white);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    transition: all var(--transition-base);
}

.page-btn:hover,
.page-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta-section {
    padding: var(--space-3xl) 0;
}

.cta-box {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-3xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.08;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-subtitle {
    color: var(--gray);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
}

.cta-content h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--dark);
    margin: var(--space-sm) 0;
    line-height: 1.3;
}

.cta-content h2 span {
    color: var(--primary);
}

.cta-donate {
    position: relative;
    z-index: 1;
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-weight: 600;
    transition: transform var(--transition-base);
    white-space: nowrap;
}

.cta-donate:hover {
    transform: scale(1.05);
}

.cta-donate i {
    font-size: 1.5rem;
}

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

.footer {
    background: var(--dark);
    color: var(--gray-light);
    padding: var(--space-2xl) 0;
    text-align: center;
}

/* ============================================
   TOAST NOTIFICATION
   ============================================ */

.toast {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    background: var(--dark);
    color: var(--white);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    transform: translateX(150%);
    transition: transform var(--transition-base);
    z-index: 2000;
    box-shadow: var(--shadow-xl);
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    background: var(--success);
}

.toast i {
    font-size: 1.25rem;
}

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

@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xl);
    }
    
    .cta-box {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .mobile-menu {
        display: block;
    }
    
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--space-md);
        gap: var(--space-md);
        box-shadow: var(--shadow-lg);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all var(--transition-base);
    }
    
    .nav-links.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .dropdown-content {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: var(--space-lg);
    }
    
    .hero {
        height: 300px;
    }
    
    .filter-container {
        flex-wrap: nowrap;
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: var(--space-sm);
        -webkit-overflow-scrolling: touch;
    }
    
    .filter-btn {
        flex-shrink: 0;
    }
    
    .controls-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        max-width: none;
    }
    
    .campaigns-grid {
        grid-template-columns: 1fr;
    }
    
    .card-image {
        height: 200px;
    }
    
    .toast {
        left: var(--space-md);
        right: var(--space-md);
        bottom: var(--space-md);
    }
}

@media (max-width: 480px) {
    .stat-number {
        font-size: 2rem;
    }
    
    .cta-box {
        padding: var(--space-xl);
    }
    
    .quick-donate {
        opacity: 1;
        transform: scale(1);
    }
}