/* ==================== RESET & VARIABLES ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #10b981;
    --secondary-dark: #059669;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --danger: #ef4444;
    --purple: #8b5cf6;
    --pink: #ec4899;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --card-bg: #1e293b;
    --border: #334155;
    --border-light: #475569;
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --shadow: 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);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--dark);
    color: var(--text);
    line-height: 1.5;
    overflow-x: hidden;
}

/* ==================== BACKGROUND ==================== */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.15), transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(16, 185, 129, 0.1), transparent 50%),
                radial-gradient(circle at 40% 80%, rgba(139, 92, 246, 0.08), transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.03;
    pointer-events: none;
    z-index: -1;
}

.particles {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -1;
}

/* ==================== HEADER ==================== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    transition: all 0.3s;
}

.logo:hover {
    transform: scale(1.05);
}

.logo i {
    color: var(--primary);
    background: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s;
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

.btn-premium {
    background: linear-gradient(135deg, var(--accent), #ea580c);
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s;
}

.btn-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

.btn-notification {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border);
    padding: 0.5rem;
    border-radius: 8px;
    color: var(--text);
    cursor: pointer;
    position: relative;
    transition: all 0.3s;
}

.btn-notification:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.05);
}

.notification-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--danger);
    color: white;
    font-size: 0.6rem;
    padding: 2px 5px;
    border-radius: 10px;
    font-weight: 600;
}

.mobile-menu {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==================== BUTTONS ==================== */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.btn-primary.full-width {
    width: 100%;
    justify-content: center;
}

.btn-secondary {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid var(--secondary);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    color: var(--secondary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    background: var(--secondary);
    color: white;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    color: var(--text);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.btn-join {
    background: var(--secondary);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex: 1;
}

.btn-join:hover {
    background: var(--secondary-dark);
    transform: translateY(-2px);
}

.btn-share {
    background: rgba(139, 92, 246, 0.15);
    border: 1px solid var(--purple);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    color: var(--purple);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex: 1;
}

.btn-share:hover {
    background: var(--purple);
    color: white;
    transform: translateY(-2px);
}

.btn-load-more {
    background: transparent;
    border: 1px solid var(--border);
    padding: 0.75rem 2rem;
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s;
    width: 100%;
    font-size: 0.875rem;
}

.btn-load-more:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

/* ==================== HERO SECTION ==================== */
.hero {
    padding: 4rem 2rem 3rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    animation: pulse 2s infinite;
}

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

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    animation: fadeInUp 0.6s ease;
}

.highlight {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero p {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.3s both;
}

/* ==================== QUICK ACTIONS ==================== */
.quick-actions {
    padding: 2rem 0;
}

.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.action-btn {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    color: var(--text);
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: inherit;
}

.action-btn:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    background: rgba(99, 102, 241, 0.1);
}

.action-btn i {
    color: var(--primary);
}

/* ==================== FILTERS SECTION ==================== */
.filters-section {
    padding: 2rem 0;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.filters-header {
    text-align: center;
    margin-bottom: 2rem;
}

.filters-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

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

.filters-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.filters-primary {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border);
    padding: 0.5rem 1.25rem;
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
}

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

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

.filters-secondary {
    display: flex;
    gap: 0.75rem;
}

.sort-btn, .view-btn {
    background: transparent;
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sort-btn:hover, .view-btn:hover {
    border-color: var(--primary);
    color: var(--text);
}

/* ==================== CHALLENGES GRID ==================== */
.challenges-section {
    padding: 2rem 0 4rem;
}

.challenges-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.challenge-count {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.challenge-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all 0.3s;
    animation: fadeInUp 0.5s ease forwards;
    opacity: 0;
}

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

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.challenge-icon {
    width: 48px;
    height: 48px;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.difficulty {
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.difficulty.beginner {
    background: rgba(16, 185, 129, 0.15);
    color: var(--secondary);
}

.difficulty.intermediate {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent);
}

.difficulty.advanced {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.challenge-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.challenge-card p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.card-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.meta-item i {
    color: var(--primary);
    font-size: 0.7rem;
}

.xp-reward {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-weight: 600;
    color: var(--accent);
}

.join-btn {
    background: var(--primary);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.join-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

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

/* ==================== LEADERBOARD SECTION ==================== */
.leaderboard-section {
    padding: 4rem 0;
    background: rgba(0, 0, 0, 0.2);
}

.leaderboard-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.leaderboard-header h2 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.leaderboard-header p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.leaderboard-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.leaderboard-tabs {
    display: flex;
    gap: 0.5rem;
}

.tab-btn {
    background: transparent;
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-download {
    background: transparent;
    border: 1px solid var(--border);
    padding: 0.5rem;
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s;
}

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

.leaderboard-grid {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 1.5rem;
}

.leaderboard-list {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1rem;
}

.lb-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
    transition: background 0.3s;
}

.lb-item:last-child {
    border-bottom: none;
}

.lb-item:hover {
    background: rgba(99, 102, 241, 0.05);
}

.lb-rank {
    width: 40px;
    font-weight: 700;
    font-size: 1.1rem;
}

.rank-1 { color: #fbbf24; }
.rank-2 { color: #9ca3af; }
.rank-3 { color: #d97706; }

.lb-avatar {
    width: 40px;
    height: 40px;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lb-info {
    flex: 1;
}

.lb-name {
    font-weight: 600;
}

.lb-country {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.lb-xp {
    font-weight: 700;
    color: var(--accent);
}

/* ==================== USER STATS ==================== */
.user-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stats-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.stats-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

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

.stats-menu {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
}

.rank-info {
    text-align: center;
    margin-bottom: 1.5rem;
}

.rank-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--purple));
    padding: 0.25rem 1rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.875rem;
}

.rank-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.xp-bar {
    margin-bottom: 1.5rem;
}

.xp-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.xp-track {
    background: var(--dark);
    border-radius: 10px;
    height: 8px;
    overflow: hidden;
}

.xp-progress {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    height: 100%;
    border-radius: 10px;
    transition: width 0.5s ease;
}

.user-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.metric {
    text-align: center;
    background: rgba(255, 255, 255, 0.03);
    padding: 0.75rem;
    border-radius: var(--radius);
}

.metric-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.metric-label {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.stats-buttons {
    display: flex;
    gap: 0.75rem;
}

/* ==================== UPCOMING CARD ==================== */
.upcoming-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.upcoming-card h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.upcoming-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.upcoming-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius);
}

.upcoming-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

.upcoming-info {
    flex: 1;
}

.upcoming-name {
    font-weight: 500;
    font-size: 0.875rem;
}

.upcoming-date {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.upcoming-countdown {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
}

.btn-view-all {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

/* ==================== BADGES SECTION ==================== */
.badges-section {
    padding: 4rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

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

.badges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.badge-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
    transition: all 0.3s;
}

.badge-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.badge-card.locked {
    opacity: 0.5;
    filter: grayscale(0.5);
}

.badge-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.5rem;
}

.badge-name {
    font-weight: 600;
    font-size: 0.8rem;
    margin-bottom: 0.25rem;
}

.badge-desc {
    font-size: 0.7rem;
    color: var(--text-muted);
}

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

.btn-view-all-badges {
    background: transparent;
    border: 1px solid var(--border);
    padding: 0.75rem 2rem;
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s;
}

.btn-view-all-badges:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* ==================== HOW IT WORKS ==================== */
.how-section {
    padding: 4rem 0;
    background: rgba(0, 0, 0, 0.2);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.step {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    position: relative;
    transition: all 0.3s;
}

.step:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.step-number {
    position: absolute;
    top: -12px;
    left: 20px;
    background: var(--primary);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 700;
}

.step-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.step h3 {
    margin-bottom: 0.5rem;
}

.step p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.step-btn {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
}

.step-btn:hover {
    text-decoration: underline;
}

/* ==================== CTA BANNER ==================== */
.cta-banner {
    padding: 4rem 0;
}

.cta-content {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(16, 185, 129, 0.1));
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
}

.cta-icon {
    font-size: 3rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.cta-text {
    flex: 1;
}

.cta-text h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

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

.cta-buttons {
    display: flex;
    gap: 1rem;
}

/* ==================== FOOTER ==================== */
.footer {
    background: var(--dark-light);
    border-top: 1px solid var(--border);
    padding: 3rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand .logo {
    display: inline-flex;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all 0.3s;
}

.social-icons a:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.link-group h4 {
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.link-group a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
    transition: all 0.3s;
}

.link-group a:hover {
    color: var(--primary);
    transform: translateX(5px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.75rem;
}

.footer-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* ==================== MODAL ==================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(8px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    max-width: 450px;
    width: 90%;
    position: relative;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s;
}

.modal-close:hover {
    color: var(--text);
    transform: rotate(90deg);
}

.modal-icon {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 1rem;
}

.modal-content h3 {
    text-align: center;
    margin-bottom: 0.25rem;
}

.modal-content p {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.input-group {
    position: relative;
    margin-bottom: 1rem;
}

.input-group i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 0.75rem 0.75rem 0.75rem 2.5rem;
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.modal-footer {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.modal-footer a {
    color: var(--primary);
    text-decoration: none;
}

/* Share Modal */
.share-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-top: 1rem;
}

.share-option {
    padding: 0.75rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s;
}

.share-option.twitter {
    background: #1da1f2;
    color: white;
}

.share-option.linkedin {
    background: #0077b5;
    color: white;
}

.share-option.whatsapp {
    background: #25d366;
    color: white;
}

.share-option.copy {
    background: var(--primary);
    color: white;
}

.share-option:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
}

/* ==================== TOAST ==================== */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--secondary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    transform: translateX(120%);
    transition: transform 0.3s ease;
    z-index: 1000;
}

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

.toast.error {
    background: var(--danger);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 968px) {
    .leaderboard-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu {
        display: block;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark-light);
        flex-direction: column;
        padding: 1rem;
        border-top: 1px solid var(--border);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-stats {
        gap: 1.5rem;
    }
    
    .filters-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .challenges-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-buttons {
        flex-direction: column;
    }
    
    .cta-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .action-btn {
        justify-content: center;
    }
    
    .filters-primary,
    .filters-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .user-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .share-options {
        grid-template-columns: 1fr;
    }
}