/**
 * ChessStake - Hall of Fame Leaderboard CSS
 * Epic design for the most important page
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Leaderboard specific colors */
    --lb-bg: #f8fafc;
    --lb-card: #ffffff;
    --lb-card-hover: #f1f5f9;
    --lb-border: rgba(0, 0, 0, 0.08);
    --lb-text: #0f172a;
    --lb-text-secondary: #64748b;
    --lb-text-muted: #94a3b8;

    /* Medal Colors */
    --gold: #fbbf24;
    --gold-light: #fef3c7;
    --gold-dark: #d97706;
    --gold-glow: rgba(251, 191, 36, 0.4);

    --silver: #9ca3af;
    --silver-light: #f3f4f6;
    --silver-dark: #6b7280;
    --silver-glow: rgba(156, 163, 175, 0.4);

    --bronze: #d97706;
    --bronze-light: #fef3c7;
    --bronze-dark: #b45309;
    --bronze-glow: rgba(217, 119, 6, 0.4);

    /* Gradients */
    --gradient-gold: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
    --gradient-silver: linear-gradient(135deg, #e5e7eb 0%, #9ca3af 50%, #6b7280 100%);
    --gradient-bronze: linear-gradient(135deg, #fcd34d 0%, #d97706 50%, #92400e 100%);
    --gradient-hero: linear-gradient(180deg, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.15) 0%, transparent 70%);

    /* USDC */
    --usdc: #2775ca;
    --usdc-glow: rgba(39, 117, 202, 0.3);
}

[data-theme="dark"] {
    --lb-bg: #0a0a0f;
    --lb-card: #12121a;
    --lb-card-hover: #1a1a24;
    --lb-border: rgba(255, 255, 255, 0.08);
    --lb-text: #ffffff;
    --lb-text-secondary: #a1a1aa;
    --lb-text-muted: #71717a;

    --gold-light: rgba(251, 191, 36, 0.15);
    --silver-light: rgba(156, 163, 175, 0.15);
    --bronze-light: rgba(217, 119, 6, 0.15);

    --gradient-hero: linear-gradient(180deg, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.2) 0%, transparent 70%);
}

/* ============================================
   Background Effects
   ============================================ */
.leaderboard-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.bg-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
}

.bg-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.bg-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(var(--lb-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--lb-border) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.5;
    mask-image: linear-gradient(to bottom, black 0%, transparent 60%);
    -webkit-mask-image: linear-gradient(to bottom, black 0%, transparent 60%);
}

/* ============================================
   Navbar Transparent
   ============================================ */
.navbar-transparent {
    background: transparent;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--lb-border);
}

.btn-glow {
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
}

.btn-glow:hover {
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.6);
}

/* Nav Right alignment */
.nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--lb-card);
    border: 1px solid var(--lb-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--lb-text-secondary);
}

.theme-toggle:hover {
    background: var(--lb-card-hover);
    color: var(--lb-text);
    border-color: var(--color-accent-primary);
}

.theme-icon-light,
.theme-icon-dark {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ============================================
   Hero Section
   ============================================ */
.leaderboard-hero {
    padding: 140px 20px 60px;
    text-align: center;
    position: relative;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(99, 102, 241, 0.15) 100%);
    border: 1px solid rgba(139, 92, 246, 0.3);
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent-secondary);
    margin-bottom: 24px;
    animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
    0%, 100% { box-shadow: 0 0 20px rgba(139, 92, 246, 0.3); }
    50% { box-shadow: 0 0 40px rgba(139, 92, 246, 0.5); }
}

.badge-icon {
    display: flex;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
}

.title-line {
    display: block;
    color: var(--lb-text);
}

.title-highlight {
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--lb-text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

/* Global Stats */
.global-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

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

.stat-value {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--lb-text);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--lb-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--lb-border);
}

/* ============================================
   Podium Section
   ============================================ */
.podium-section {
    padding: 40px 20px 80px;
    position: relative;
}

.podium-wrapper {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.podium-player {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.crown-container {
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    animation: crown-float 3s ease-in-out infinite;
    z-index: 10;
}

@keyframes crown-float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-8px); }
}

.crown-icon {
    color: var(--gold);
    filter: drop-shadow(0 0 10px var(--gold-glow));
}

.podium-card {
    background: var(--lb-card);
    border: 1px solid var(--lb-border);
    border-radius: 20px;
    padding: 24px 30px;
    text-align: center;
    position: relative;
    z-index: 2;
    min-width: 180px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.podium-card:hover {
    transform: translateY(-8px);
}

.podium-gold .podium-card {
    border-color: var(--gold);
    box-shadow: 0 0 40px var(--gold-glow), 0 20px 40px rgba(0, 0, 0, 0.2);
}

.podium-gold .podium-card:hover {
    box-shadow: 0 0 60px var(--gold-glow), 0 25px 50px rgba(0, 0, 0, 0.3);
}

.podium-silver .podium-card {
    border-color: var(--silver);
    box-shadow: 0 0 30px var(--silver-glow), 0 15px 30px rgba(0, 0, 0, 0.15);
}

.podium-bronze .podium-card {
    border-color: var(--bronze);
    box-shadow: 0 0 30px var(--bronze-glow), 0 15px 30px rgba(0, 0, 0, 0.15);
}

.podium-rank {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    color: white;
}

.podium-gold .podium-rank {
    background: var(--gradient-gold);
    box-shadow: 0 4px 15px var(--gold-glow);
}

.podium-silver .podium-rank {
    background: var(--gradient-silver);
    box-shadow: 0 4px 15px var(--silver-glow);
}

.podium-bronze .podium-rank {
    background: var(--gradient-bronze);
    box-shadow: 0 4px 15px var(--bronze-glow);
}

.podium-avatar {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 10px auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 3px solid var(--lb-border);
}

.avatar-ring-gold {
    border-color: var(--gold);
    animation: ring-glow 2s ease-in-out infinite;
}

@keyframes ring-glow {
    0%, 100% { box-shadow: 0 0 15px var(--gold-glow); }
    50% { box-shadow: 0 0 30px var(--gold-glow); }
}

.avatar-flag {
    font-size: 3rem;
    line-height: 1;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.podium-name {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--lb-text);
    margin-bottom: 8px;
}

.podium-elo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: var(--lb-text-secondary);
    font-size: 0.875rem;
    margin-bottom: 16px;
}

.elo-icon {
    color: var(--color-accent-secondary);
}

.podium-earnings {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--usdc);
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
    margin-bottom: 8px;
}

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

.podium-wins {
    font-size: 0.875rem;
    color: var(--lb-text-muted);
}

.wins-value {
    font-weight: 600;
    color: var(--color-accent-tertiary);
}

/* Podium Stands */
.podium-stand {
    width: 100%;
    position: relative;
    perspective: 1000px;
}

.stand-gold {
    height: 120px;
}

.stand-silver {
    height: 80px;
}

.stand-bronze {
    height: 60px;
}

.stand-face {
    position: absolute;
    left: 0;
    right: 0;
}

.stand-front {
    bottom: 0;
    height: 100%;
    border-radius: 0 0 16px 16px;
}

.stand-gold .stand-front {
    background: linear-gradient(180deg, var(--gold) 0%, var(--gold-dark) 100%);
    box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.3);
}

.stand-silver .stand-front {
    background: linear-gradient(180deg, var(--silver) 0%, var(--silver-dark) 100%);
    box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.3);
}

.stand-bronze .stand-front {
    background: linear-gradient(180deg, var(--bronze) 0%, var(--bronze-dark) 100%);
    box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.3);
}

.stand-top {
    top: 0;
    height: 20px;
    transform: rotateX(45deg);
    transform-origin: top;
    border-radius: 8px 8px 0 0;
}

.stand-gold .stand-top {
    background: var(--gold);
}

.stand-silver .stand-top {
    background: var(--silver);
}

.stand-bronze .stand-top {
    background: var(--bronze);
}

/* ============================================
   Leaderboard Table Section
   ============================================ */
.leaderboard-section {
    padding: 60px 20px 80px;
}

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

.leaderboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--lb-text);
}

.period-tabs {
    display: flex;
    gap: 8px;
    background: var(--lb-card);
    padding: 6px;
    border-radius: 12px;
    border: 1px solid var(--lb-border);
}

.period-tab {
    background: transparent;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--lb-text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.period-tab:hover {
    color: var(--lb-text);
    background: var(--lb-card-hover);
}

.period-tab.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

/* Table Wrapper */
.leaderboard-table-wrapper {
    background: var(--lb-card);
    border: 1px solid var(--lb-border);
    border-radius: 20px;
    overflow: hidden;
}

.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
}

.leaderboard-table thead {
    background: var(--lb-card-hover);
}

.leaderboard-table th {
    padding: 16px 20px;
    text-align: left;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--lb-text-muted);
    border-bottom: 1px solid var(--lb-border);
}

.leaderboard-table td {
    padding: 18px 20px;
    border-bottom: 1px solid var(--lb-border);
    color: var(--lb-text);
}

.leaderboard-table tbody tr {
    transition: background 0.2s ease;
}

.leaderboard-table tbody tr:hover {
    background: var(--lb-card-hover);
}

.leaderboard-table tbody tr:last-child td {
    border-bottom: none;
}

/* Table Cells */
.th-rank, .td-rank {
    width: 60px;
    text-align: center !important;
}

.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.875rem;
}

.rank-1 {
    background: var(--gold-light);
    color: var(--gold-dark);
}

.rank-2 {
    background: var(--silver-light);
    color: var(--silver-dark);
}

.rank-3 {
    background: var(--bronze-light);
    color: var(--bronze-dark);
}

.rank-default {
    background: var(--lb-card-hover);
    color: var(--lb-text-secondary);
}

.player-cell {
    display: flex;
    align-items: center;
    gap: 12px;
}

.player-flag {
    font-size: 1.75rem;
    line-height: 1;
    min-width: 32px;
    text-align: center;
}

.player-name {
    font-weight: 600;
    color: var(--lb-text);
}

.earnings-cell {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.0625rem;
    color: var(--usdc);
}

.profit-cell {
    font-weight: 600;
}

.profit-positive {
    color: var(--color-accent-tertiary);
}

.profit-negative {
    color: var(--color-accent-danger);
}

.winrate-cell {
    display: flex;
    align-items: center;
    gap: 8px;
}

.winrate-bar {
    width: 60px;
    height: 6px;
    background: var(--lb-card-hover);
    border-radius: 3px;
    overflow: hidden;
}

.winrate-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 3px;
    transition: width 0.5s ease;
}

.winrate-text {
    font-weight: 500;
    color: var(--lb-text-secondary);
    min-width: 45px;
}

.elo-cell {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--lb-text-secondary);
}

.elo-cell svg {
    color: var(--color-accent-secondary);
}

/* Loading State */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    gap: 20px;
}

.loader {
    width: 48px;
    height: 48px;
    border: 4px solid var(--lb-border);
    border-top-color: var(--color-accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-state p {
    color: var(--lb-text-secondary);
    font-size: 1rem;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    text-align: center;
}

.empty-icon {
    color: var(--lb-text-muted);
    margin-bottom: 24px;
    opacity: 0.5;
}

.empty-state h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--lb-text);
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--lb-text-secondary);
    margin-bottom: 24px;
}

/* Load More */
.load-more-wrapper {
    text-align: center;
    padding: 30px 0;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    padding: 40px 20px 100px;
}

.cta-card {
    background: var(--lb-card);
    border: 1px solid var(--lb-border);
    border-radius: 24px;
    padding: 60px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-content {
    position: relative;
    z-index: 2;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--lb-text);
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 1.125rem;
    color: var(--lb-text-secondary);
    max-width: 500px;
    margin: 0 auto 32px;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-xl {
    padding: 16px 32px;
    font-size: 1.0625rem;
}

.btn-icon {
    display: inline-flex;
    margin-right: 8px;
}

.cta-decoration {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.decoration-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--lb-border);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.ring-1 {
    width: 300px;
    height: 300px;
    animation: ring-expand 8s ease-in-out infinite;
}

.ring-2 {
    width: 500px;
    height: 500px;
    animation: ring-expand 8s ease-in-out infinite 1s;
}

.ring-3 {
    width: 700px;
    height: 700px;
    animation: ring-expand 8s ease-in-out infinite 2s;
}

@keyframes ring-expand {
    0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.1; transform: translate(-50%, -50%) scale(1.1); }
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .leaderboard-hero {
        padding: 120px 20px 40px;
    }

    .global-stats {
        gap: 24px;
    }

    .stat-value {
        font-size: 1.75rem;
    }

    .stat-divider {
        display: none;
    }

    .podium-wrapper {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }

    .podium-player {
        width: 100%;
        max-width: 280px;
    }

    .podium-gold {
        order: -1;
    }

    .podium-stand {
        display: none;
    }

    .crown-container {
        top: -40px;
    }

    .leaderboard-header {
        flex-direction: column;
        text-align: center;
    }

    .period-tabs {
        width: 100%;
        justify-content: center;
    }

    .period-tab {
        padding: 10px 16px;
        font-size: 0.875rem;
    }

    .leaderboard-table-wrapper {
        overflow-x: auto;
    }

    .leaderboard-table {
        min-width: 700px;
    }

    .cta-card {
        padding: 40px 24px;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn-xl {
        width: 100%;
    }
}

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

.podium-player {
    animation: fadeInUp 0.6s ease forwards;
}

.podium-silver { animation-delay: 0.1s; }
.podium-gold { animation-delay: 0.2s; }
.podium-bronze { animation-delay: 0.3s; }

.leaderboard-table tbody tr {
    animation: fadeInUp 0.4s ease forwards;
    opacity: 0;
}

.leaderboard-table tbody tr:nth-child(1) { animation-delay: 0.05s; }
.leaderboard-table tbody tr:nth-child(2) { animation-delay: 0.1s; }
.leaderboard-table tbody tr:nth-child(3) { animation-delay: 0.15s; }
.leaderboard-table tbody tr:nth-child(4) { animation-delay: 0.2s; }
.leaderboard-table tbody tr:nth-child(5) { animation-delay: 0.25s; }
.leaderboard-table tbody tr:nth-child(6) { animation-delay: 0.3s; }
.leaderboard-table tbody tr:nth-child(7) { animation-delay: 0.35s; }
.leaderboard-table tbody tr:nth-child(8) { animation-delay: 0.4s; }
.leaderboard-table tbody tr:nth-child(9) { animation-delay: 0.45s; }
.leaderboard-table tbody tr:nth-child(10) { animation-delay: 0.5s; }

/* Particle Animation */
.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-accent-primary);
    border-radius: 50%;
    opacity: 0.5;
    animation: float-particle 15s linear infinite;
}

@keyframes float-particle {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.5;
    }
    90% {
        opacity: 0.5;
    }
    100% {
        transform: translateY(-100px) rotate(720deg);
        opacity: 0;
    }
}