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

:root {
    /* Colors */
    --primary-purple: #8B5CF6;
    --dark-purple: #5B21B6;
    --deep-purple: #4C1D95;
    --black: #0F0F23;
    --dark-gray: #1F1F2E;
    --medium-gray: #2D2D42;
    --light-gray: #6B7280;
    --white: #FFFFFF;
    --accent-gold: #F59E0B;
    --success-green: #10B981;
    --danger-red: #EF4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-purple) 0%, var(--dark-purple) 100%);
    --gradient-dark: linear-gradient(135deg, var(--black) 0%, var(--dark-gray) 100%);
    --gradient-card: linear-gradient(145deg, rgba(139, 92, 246, 0.1) 0%, rgba(91, 33, 182, 0.05) 100%);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 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);
    --shadow-purple: 0 10px 25px -5px rgba(139, 92, 246, 0.3);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--gradient-dark);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ===== LOADING SCREEN ===== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    animation: fadeInUp 0.8s ease-out;
}

.loading-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

.loading-logo .logo-icon {
    font-size: var(--font-size-4xl);
    animation: bounce 2s infinite;
}

.loading-logo h1 {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(139, 92, 246, 0.3);
    border-top: 3px solid var(--primary-purple);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.main-content.visible {
    opacity: 1;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(139, 92, 246, 0.2);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-4) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    transition: all var(--transition-normal);
}

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

.logo-img {
    height: 40px;
    width: auto;
    transition: all var(--transition-normal);
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--white);
    transition: all var(--transition-normal);
}

.nav-links {
    display: flex;
    gap: var(--space-8);
}

.nav-link {
    color: var(--light-gray);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-purple);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: all var(--transition-normal);
}

/* ===== HERO SECTION (REMOVED) ===== */
/*
.hero {
    padding: calc(80px + var(--space-20)) var(--space-6) var(--space-20);
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
    min-height: 80vh;
}
... (hero styles commented out)
*/

/* ===== FILTERS SECTION ===== */
.filters {
    padding: calc(80px + var(--space-16)) var(--space-6) var(--space-16);
    background: rgba(31, 31, 46, 0.5);
    border-top: 1px solid rgba(139, 92, 246, 0.2);
    border-bottom: 1px solid rgba(139, 92, 246, 0.2);
}

.filters-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.filters-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--space-8);
    color: var(--white);
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    justify-content: center;
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-full);
    color: var(--light-gray);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.filter-btn:hover {
    background: rgba(139, 92, 246, 0.2);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.filter-icon {
    font-size: var(--font-size-lg);
}

/* ===== LEADERBOARD SECTION ===== */
.leaderboard {
    padding: var(--space-20) var(--space-6);
}

.leaderboard-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-12);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.view-options {
    display: flex;
    gap: var(--space-2);
    background: rgba(139, 92, 246, 0.1);
    padding: var(--space-1);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.view-btn {
    padding: var(--space-2) var(--space-4);
    background: none;
    border: none;
    color: var(--light-gray);
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.view-btn:hover {
    color: var(--white);
    background: rgba(139, 92, 246, 0.2);
}

.view-btn.active {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

/* ===== PODIUM ===== */
.podium {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-16);
    align-items: end;
}

.podium-item {
    background: var(--gradient-card);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    text-align: center;
    position: relative;
    transition: all var(--transition-normal);
    animation: fadeInUp 0.8s ease-out;
}

.podium-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-purple);
}

.first-place {
    order: 2;
    transform: scale(1.1);
    background: linear-gradient(145deg, rgba(245, 158, 11, 0.2) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-color: var(--accent-gold);
    animation-delay: 0.2s;
}

.second-place {
    order: 1;
    animation-delay: 0s;
}

.third-place {
    order: 3;
    animation-delay: 0.4s;
}

.podium-crown {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--font-size-2xl);
    animation: bounce 2s infinite;
}

.podium-avatar {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-4);
}

.podium-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-purple);
}

.first-place .podium-avatar img {
    border-color: var(--accent-gold);
}

.rank-badge {
    position: absolute;
    bottom: -5px;
    right: -5px;
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 700;
    border: 2px solid var(--black);
}

.first-place .rank-badge {
    background: linear-gradient(135deg, var(--accent-gold) 0%, #F97316 100%);
}

.podium-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.podium-sport {
    color: var(--light-gray);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-3);
}

.podium-score {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--primary-purple);
}

.first-place .podium-score {
    color: var(--accent-gold);
}

/* ===== RANKING LIST ===== */
.ranking-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.ranking-item {
    display: grid;
    grid-template-columns: auto auto 1fr auto auto;
    gap: var(--space-4);
    align-items: center;
    padding: var(--space-5);
    background: var(--gradient-card);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    animation: fadeInUp 0.6s ease-out;
}

.ranking-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-purple);
    border-color: var(--primary-purple);
}

.rank-number {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: var(--font-size-lg);
}

.user-avatar {
    width: 50px;
    height: 50px;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(139, 92, 246, 0.5);
    transition: border-color var(--transition-normal);
}

.ranking-item:hover .user-avatar img {
    border-color: var(--primary-purple);
}

.user-info {
    min-width: 0;
}

.user-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-1);
    color: var(--white);
}

.user-sport {
    color: var(--light-gray);
    font-size: var(--font-size-sm);
}

.user-stats {
    display: flex;
    gap: var(--space-6);
}

.stat {
    text-align: center;
}

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

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

.user-trend {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.user-trend.up {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-green);
}

.user-trend.down {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-red);
}

.user-trend.stable {
    background: rgba(107, 114, 128, 0.2);
    color: var(--light-gray);
}

.trend-icon {
    font-size: var(--font-size-base);
}

/* ===== LOAD MORE BUTTON ===== */
.load-more-container {
    text-align: center;
}

.load-more-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.load-more-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-purple);
}

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

.btn-icon {
    transition: transform var(--transition-normal);
}

.load-more-btn:hover .btn-icon {
    transform: translateY(2px);
}

/* ===== CTA SECTION ===== */
.cta {
    padding: var(--space-20) var(--space-6);
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--space-6);
    color: var(--white);
}

.cta-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-10);
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    border: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.cta-btn.primary {
    background: var(--white);
    color: var(--dark-purple);
}

.cta-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.3);
}

.cta-btn.secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.cta-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.btn-arrow {
    transition: transform var(--transition-normal);
}

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

/* ===== FOOTER STYLES (REMOVED) ===== */
/*
Footer styles have been removed as the footer section 
was deleted from the HTML structure.
*/

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        gap: var(--space-12);
        text-align: center;
    }
    
    .hero-visual {
        height: 300px;
    }
    
    .floating-card {
        width: 60px;
        height: 60px;
        font-size: var(--font-size-lg);
    }
    
    .podium {
        gap: var(--space-4);
    }
    
    .first-place {
        transform: scale(1.05);
    }
    
    .ranking-item {
        grid-template-columns: auto auto 1fr auto;
        gap: var(--space-3);
    }
    
    .user-stats {
        gap: var(--space-4);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: calc(80px + var(--space-12)) var(--space-4) var(--space-12);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .filters,
    .leaderboard,
    .cta {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }
    
    .section-header {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
    
    .podium {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .first-place {
        order: 1;
        transform: none;
    }
    
    .second-place {
        order: 2;
    }
    
    .third-place {
        order: 3;
    }
    
    .ranking-item {
        grid-template-columns: auto 1fr auto;
        gap: var(--space-3);
        padding: var(--space-4);
    }
    
    .user-avatar {
        width: 40px;
        height: 40px;
    }
    
    .user-stats {
        flex-direction: column;
        gap: var(--space-2);
        text-align: right;
    }
    
    .cta-title {
        font-size: var(--font-size-2xl);
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .filter-buttons {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-2);
    }
    
    .filter-btn {
        padding: var(--space-2) var(--space-4);
        font-size: var(--font-size-sm);
    }
    
    .ranking-item {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-4);
    }
    
    .rank-number {
        margin: 0 auto;
    }
    
    .user-info {
        order: 2;
    }
    
    .user-stats {
        order: 3;
        flex-direction: row;
        justify-content: center;
    }
    
    .user-trend {
        order: 4;
        justify-content: center;
    }
}



/* ===== EMPTY AVATAR STYLES ===== */
.empty-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--gradient-card);
    border: 2px solid rgba(139, 92, 246, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    color: var(--light-gray);
    transition: all var(--transition-normal);
}

.podium-item .empty-avatar {
    width: 80px;
    height: 80px;
}

.ranking-item .empty-avatar {
    width: 50px;
    height: 50px;
    font-size: var(--font-size-lg);
}

.ranking-item:hover .empty-avatar {
    border-color: var(--primary-purple);
    background: rgba(139, 92, 246, 0.2);
}

.first-place .empty-avatar {
    border-color: var(--accent-gold);
}

.first-place:hover .empty-avatar {
    border-color: var(--accent-gold);
    background: rgba(245, 158, 11, 0.2);
}

/* Empty state text styling */
.podium-name,
.user-name {
    color: var(--light-gray);
    opacity: 0.7;
}

.podium-sport,
.user-sport {
    color: var(--light-gray);
    opacity: 0.5;
}

.podium-score .stat-value {
    color: var(--light-gray);
    opacity: 0.6;
}

/* Placeholder text animation */
.podium-name,
.user-name,
.podium-sport,
.user-sport,
.stat-value {
    animation: placeholderPulse 2s ease-in-out infinite;
}

@keyframes placeholderPulse {
    0%, 100% {
        opacity: 0.4;
    }
    50% {
        opacity: 0.7;
    }
}