/* ============================================================
   皮皮の游戏空间 — Cyberpunk Neon Theme
   ============================================================ */

/* === CSS Variables === */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #0d0d1a;
    --bg-card: rgba(10, 10, 20, 0.85);
    --bg-glass: rgba(5, 5, 15, 0.6);

    --neon-cyan: #00ffff;
    --neon-cyan-dim: #00aacc;
    --neon-magenta: #ff00ff;
    --neon-magenta-dim: #cc00aa;
    --neon-gold: #ffd700;
    --neon-gold-dim: #ccaa00;
    --neon-green: #00ff66;
    --neon-red: #ff3355;

    --text-primary: #ffffff;
    --text-secondary: #c0c0d0;
    --text-muted: #808099;

    --border-glow-cyan: 0 0 10px rgba(0, 255, 255, 0.5);
    --border-glow-magenta: 0 0 10px rgba(255, 0, 255, 0.5);
    --border-glow-gold: 0 0 10px rgba(255, 215, 0, 0.5);

    --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
    --font-sans: 'Microsoft YaHei', 'PingFang SC', 'Noto Sans SC', sans-serif;

    --nav-height: 70px;
    --max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    background-color: var(--bg-primary);
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Selection */
::selection {
    background: var(--neon-cyan);
    color: var(--bg-primary);
}

/* === Scrollbar === */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--neon-cyan-dim);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--neon-cyan);
}

/* ============================================================
   Navigation Bar
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 1000;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 255, 255, 0.15);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(5, 5, 15, 0.9);
    border-bottom-color: rgba(0, 255, 255, 0.3);
    box-shadow: 0 2px 20px rgba(0, 255, 255, 0.1);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

/* Logo */
.nav-logo {
    text-decoration: none;
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.logo-text {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan), 0 0 30px var(--neon-cyan);
    letter-spacing: 2px;
}

.logo-sub {
    font-size: 0.9rem;
    color: var(--neon-magenta);
    text-shadow: 0 0 8px var(--neon-magenta);
}

/* Nav Links */
.nav-links {
    list-style: none;
    display: flex;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s ease;
    letter-spacing: 1px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-cyan);
    box-shadow: 0 0 10px var(--neon-cyan);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--neon-cyan);
    text-shadow: 0 0 8px var(--neon-cyan);
}

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

/* Mobile Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--neon-cyan);
    box-shadow: 0 0 5px var(--neon-cyan);
    transition: all 0.3s ease;
}

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: var(--nav-height);
}

#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    background:
        linear-gradient(0deg, rgba(10,10,15,0.6) 0%, transparent 40%, transparent 60%, rgba(10,10,15,0.8) 100%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(0, 255, 255, 0.015) 2px,
            rgba(0, 255, 255, 0.015) 4px
        );
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 0 24px;
}

/* Glitch top label */
.hero-glitch {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 6px;
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.hero-glitch::before,
.hero-glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-glitch::before {
    color: var(--neon-magenta);
    animation: glitch-1 2s infinite linear alternate-reverse;
    clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
}

.hero-glitch::after {
    color: var(--neon-cyan);
    animation: glitch-2 3s infinite linear alternate-reverse;
    clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
}

@keyframes glitch-1 {
    0%, 100% { transform: translate(0); }
    33% { transform: translate(-2px, 1px); }
    66% { transform: translate(2px, -1px); }
}

@keyframes glitch-2 {
    0%, 100% { transform: translate(0); }
    33% { transform: translate(2px, -1px); }
    66% { transform: translate(-1px, 2px); }
}

/* Main Title */
.hero-title {
    font-size: 5rem;
    font-weight: 900;
    letter-spacing: 16px;
    margin-bottom: 24px;
    line-height: 1.2;
}

.neon-cyan {
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan), 0 0 30px var(--neon-cyan), 0 0 60px var(--neon-cyan);
    animation: neon-pulse-cyan 2s ease-in-out infinite alternate;
}

.neon-magenta {
    color: var(--neon-magenta);
    text-shadow: 0 0 10px var(--neon-magenta), 0 0 30px var(--neon-magenta), 0 0 60px var(--neon-magenta);
    animation: neon-pulse-magenta 2.5s ease-in-out infinite alternate;
}

.neon-gold {
    color: var(--neon-gold);
    text-shadow: 0 0 10px var(--neon-gold), 0 0 30px var(--neon-gold), 0 0 60px var(--neon-gold);
    animation: neon-pulse-gold 3s ease-in-out infinite alternate;
}

@keyframes neon-pulse-cyan {
    0%, 100% { text-shadow: 0 0 10px var(--neon-cyan), 0 0 30px var(--neon-cyan); }
    50% { text-shadow: 0 0 20px var(--neon-cyan), 0 0 60px var(--neon-cyan), 0 0 100px var(--neon-cyan); }
}

@keyframes neon-pulse-magenta {
    0%, 100% { text-shadow: 0 0 10px var(--neon-magenta), 0 0 30px var(--neon-magenta); }
    50% { text-shadow: 0 0 20px var(--neon-magenta), 0 0 60px var(--neon-magenta), 0 0 100px var(--neon-magenta); }
}

@keyframes neon-pulse-gold {
    0%, 100% { text-shadow: 0 0 10px var(--neon-gold), 0 0 30px var(--neon-gold); }
    50% { text-shadow: 0 0 20px var(--neon-gold), 0 0 60px var(--neon-gold), 0 0 100px var(--neon-gold); }
}

.hero-subtitle {
    font-size: 1.4rem;
    color: var(--text-secondary);
    letter-spacing: 4px;
    margin-bottom: 12px;
}

.hero-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    max-width: 500px;
    margin: 0 auto 48px;
    letter-spacing: 1px;
}

/* Scroll Indicator */
.hero-scroll {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
    letter-spacing: 2px;
    animation: float 2s ease-in-out infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--neon-cyan);
    border-bottom: 2px solid var(--neon-cyan);
    transform: rotate(45deg);
    box-shadow: 0 0 8px var(--neon-cyan);
}

@keyframes float {
    0%, 100% { transform: translateY(0); opacity: 0.7; }
    50% { transform: translateY(10px); opacity: 1; }
}

/* ============================================================
   Section Common
   ============================================================ */
.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 24px;
}

.section-title {
    font-size: 2.4rem;
    text-align: center;
    color: var(--text-primary);
    letter-spacing: 6px;
    margin-bottom: 12px;
}

.section-desc {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
    letter-spacing: 2px;
    margin-bottom: 48px;
}

/* ============================================================
   Games Section
   ============================================================ */
.games-section {
    position: relative;
    background: var(--bg-secondary);
}

/* Filter Bar */
.filter-bar {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid rgba(0, 255, 255, 0.2);
    padding: 8px 24px;
    font-size: 0.85rem;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-sans);
    clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--neon-cyan);
    border-color: var(--neon-cyan);
    text-shadow: 0 0 8px var(--neon-cyan);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.2), inset 0 0 15px rgba(0, 255, 255, 0.05);
}

/* Games Grid */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

/* Game Card */
.game-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    padding: 28px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
    cursor: default;
    opacity: 0;
    transform: translateY(30px);
}

.game-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.game-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,255,255,0.03) 0%, rgba(255,0,255,0.03) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.game-card:hover::before {
    opacity: 1;
}

.game-card:hover {
    transform: translateY(-4px);
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.15), 0 0 60px rgba(0, 255, 255, 0.05), inset 0 0 20px rgba(0, 255, 255, 0.03);
}

/* Card accent line */
.game-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--neon-cyan);
    box-shadow: 0 0 10px var(--neon-cyan);
    transition: height 0.4s ease;
}

.game-card:hover::after {
    height: 100%;
}

/* === Game Card Top Row (icon + header) === */
.game-card-top {
    display: flex;
    gap: 16px;
    margin-bottom: 14px;
}

.game-card-icon {
    width: 52px;
    height: 52px;
    flex-shrink: 0;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.game-card:hover .game-card-icon {
    border-color: rgba(0, 255, 255, 0.4);
    box-shadow: 0 0 12px rgba(0, 255, 255, 0.2);
}

.game-card-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.game-icon-fallback {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--neon-cyan);
    text-shadow: 0 0 8px var(--neon-cyan);
    opacity: 0.6;
}

.game-card-head {
    flex: 1;
    min-width: 0;
}

.game-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.game-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 1px;
}

.game-rating {
    display: flex;
    gap: 2px;
}

.star {
    color: var(--neon-gold);
    font-size: 0.9rem;
    text-shadow: 0 0 5px var(--neon-gold);
}

.star.empty {
    color: #333;
    text-shadow: none;
}

.game-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.platform-badge {
    font-size: 0.7rem;
    padding: 3px 10px;
    letter-spacing: 1px;
    font-weight: 600;
    clip-path: polygon(4px 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
}

.platform-badge.steam {
    background: rgba(0, 255, 255, 0.1);
    color: var(--neon-cyan);
    border: 1px solid rgba(0, 255, 255, 0.3);
}

.platform-badge.battlenet {
    background: rgba(255, 0, 255, 0.1);
    color: var(--neon-magenta);
    border: 1px solid rgba(255, 0, 255, 0.3);
}

.platform-badge.mihoyo {
    background: rgba(68, 136, 255, 0.1);
    color: #4488ff;
    border: 1px solid rgba(68, 136, 255, 0.3);
}

.platform-badge.other {
    background: rgba(255, 215, 0, 0.1);
    color: var(--neon-gold);
    border: 1px solid rgba(255, 215, 0, 0.3);
}

.game-comment {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
    font-style: italic;
    border-left: 2px solid rgba(255, 255, 255, 0.1);
    padding-left: 12px;
}

/* ============================================================
   Stats Section
   ============================================================ */
.stats-section {
    position: relative;
    background: var(--bg-primary);
}

/* Overview Cards */
.stats-overview {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 60px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 28px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: var(--neon-gold);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.15), inset 0 0 20px rgba(255, 215, 0, 0.03);
}

.stat-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-gold), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.stat-number {
    font-family: var(--font-mono);
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--neon-gold);
    text-shadow: 0 0 15px var(--neon-gold);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 2px;
}

/* Chart Section */
.chart-section {
    margin-bottom: 56px;
}

.chart-title {
    font-size: 1.2rem;
    color: var(--text-primary);
    letter-spacing: 3px;
    margin-bottom: 28px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* === Bar Chart (Game Hours) === */
.bar-chart {
    display: flex;
    align-items: flex-end;
    gap: 16px;
    height: 300px;
    padding: 20px 0;
}

.bar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    height: 100%;
    justify-content: flex-end;
}

.bar-value {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--neon-cyan);
    text-shadow: 0 0 8px var(--neon-cyan);
    letter-spacing: 1px;
}

.bar-fill {
    width: 100%;
    max-width: 60px;
    background: linear-gradient(180deg, var(--neon-cyan) 0%, var(--neon-magenta) 100%);
    border-radius: 2px 2px 0 0;
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
    transition: height 1.2s cubic-bezier(0.22, 0.61, 0.36, 1);
    position: relative;
    min-height: 4px;
}

.bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--neon-cyan);
    box-shadow: 0 0 10px var(--neon-cyan);
}

.bar-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    letter-spacing: 1px;
    max-width: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* === Progress Bars === */
/* === Page Navigation === */
.page-nav {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.page-btn {
    background: transparent;
    color: var(--neon-cyan);
    border: 1px solid rgba(0, 255, 255, 0.25);
    padding: 8px 20px;
    font-size: 0.85rem;
    letter-spacing: 2px;
    cursor: pointer;
    font-family: var(--font-sans);
    transition: all 0.3s ease;
}

.page-btn:hover {
    background: rgba(0, 255, 255, 0.08);
    text-shadow: 0 0 8px var(--neon-cyan);
    box-shadow: 0 0 12px rgba(0, 255, 255, 0.15);
}

.page-info {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 2px;
}

/* === Show More Button === */
.show-more-wrap {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    padding: 20px 0 10px;
}

.show-more-btn {
    background: transparent;
    color: var(--neon-cyan);
    border: 1px solid rgba(0, 255, 255, 0.3);
    padding: 12px 40px;
    font-size: 0.9rem;
    letter-spacing: 3px;
    cursor: pointer;
    font-family: var(--font-sans);
    transition: all 0.3s ease;
    clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}

.show-more-btn:hover {
    background: rgba(0, 255, 255, 0.08);
    border-color: var(--neon-cyan);
    text-shadow: 0 0 8px var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2), inset 0 0 20px rgba(0, 255, 255, 0.05);
}

/* === Radar Chart === */
.radar-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.radar-wrap canvas {
    max-width: 450px;
    max-height: 450px;
}

.radar-legend {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.radar-legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.radar-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.radar-label {
    color: var(--text-secondary);
    min-width: 80px;
}

.radar-count {
    font-family: var(--font-mono);
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .radar-wrap {
        gap: 16px;
    }
    .radar-wrap canvas {
        max-width: 320px;
        max-height: 320px;
    }
}

/* === Achievement Cards (kept for potential reuse) === */
.achievement-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.achievement-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: 20px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.achievement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--neon-magenta);
    box-shadow: 0 0 10px var(--neon-magenta);
    transition: height 0.3s ease;
}

.achievement-card:hover::before {
    height: 100%;
}

.achievement-card:hover {
    border-color: rgba(255, 0, 255, 0.3);
    box-shadow: 0 0 20px rgba(255, 0, 255, 0.1), inset 0 0 20px rgba(255, 0, 255, 0.02);
    transform: translateY(-2px);
}

.achievement-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.achievement-card-icon {
    font-size: 1.3rem;
}

.achievement-card-title {
    font-size: 1rem;
    color: var(--neon-magenta);
    font-weight: 700;
    letter-spacing: 1px;
    text-shadow: 0 0 8px var(--neon-magenta);
    flex: 1;
}

.achievement-card-count {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.achievement-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.achievement-tag {
    font-size: 0.8rem;
    padding: 4px 12px;
    letter-spacing: 1px;
    color: var(--neon-cyan);
    background: rgba(0, 255, 255, 0.06);
    border: 1px solid rgba(0, 255, 255, 0.2);
    clip-path: polygon(4px 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
    transition: all 0.3s ease;
}

.achievement-tag:hover {
    background: rgba(0, 255, 255, 0.12);
    text-shadow: 0 0 8px var(--neon-cyan);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
}

/* === Platform Pie Chart === */
.platform-chart {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.pie-container {
    position: relative;
    width: 200px;
    height: 200px;
}

.pie-svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 15px rgba(0, 255, 255, 0.2));
}

.pie-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.03);
    stroke-width: 20;
}

.pie-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.pie-total {
    display: block;
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 900;
    color: var(--neon-cyan);
    text-shadow: 0 0 15px var(--neon-cyan);
}

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

.pie-legend {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 2px;
    box-shadow: 0 0 8px currentColor;
}

.legend-count {
    font-family: var(--font-mono);
    color: var(--text-muted);
    margin-left: auto;
}

/* ============================================================
   About Section
   ============================================================ */
.about-section {
    position: relative;
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 48px;
    align-items: start;
}

.about-avatar {
    text-align: center;
}

.avatar-placeholder {
    width: 140px;
    height: 140px;
    margin: 0 auto 16px;
    border: 2px solid var(--neon-cyan);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    background: rgba(0, 255, 255, 0.03);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2), inset 0 0 20px rgba(0, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.avatar-placeholder:hover {
    box-shadow: 0 0 40px rgba(0, 255, 255, 0.4), inset 0 0 30px rgba(0, 255, 255, 0.1);
}

.about-name {
    font-size: 1.4rem;
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan);
    letter-spacing: 3px;
    margin-bottom: 4px;
}

.about-tag {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 2px;
}

.about-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 24px;
    transition: all 0.3s ease;
}

.about-card:hover {
    border-color: rgba(255, 0, 255, 0.2);
    box-shadow: 0 0 20px rgba(255, 0, 255, 0.08);
}

.about-card h4 {
    color: var(--neon-magenta);
    text-shadow: 0 0 8px var(--neon-magenta);
    font-size: 1rem;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

/* Tag Cloud */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    padding: 5px 14px;
    font-size: 0.8rem;
    letter-spacing: 1px;
    border: 1px solid rgba(255, 0, 255, 0.2);
    color: var(--text-secondary);
    background: rgba(255, 0, 255, 0.05);
    transition: all 0.3s ease;
    clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.tag:hover {
    border-color: var(--neon-magenta);
    color: var(--neon-magenta);
    text-shadow: 0 0 8px var(--neon-magenta);
    box-shadow: 0 0 10px rgba(255, 0, 255, 0.2);
}

/* ID List */
.id-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.id-list li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.platform-tag {
    font-size: 0.7rem;
    padding: 2px 8px;
    letter-spacing: 1px;
    font-weight: 600;
    clip-path: polygon(3px 0, 100% 0, calc(100% - 3px) 100%, 0 100%);
}

.platform-tag.steam {
    background: rgba(0, 255, 255, 0.1);
    color: var(--neon-cyan);
    border: 1px solid rgba(0, 255, 255, 0.3);
}

.platform-tag.battlenet {
    background: rgba(255, 0, 255, 0.1);
    color: var(--neon-magenta);
    border: 1px solid rgba(255, 0, 255, 0.3);
}

.platform-tag.genshin {
    background: rgba(255, 215, 0, 0.1);
    color: var(--neon-gold);
    border: 1px solid rgba(255, 215, 0, 0.3);
}

/* About description */
.about-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.8;
    letter-spacing: 1px;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
    text-align: center;
    padding: 48px 24px;
    background: var(--bg-primary);
}

.footer-line {
    width: 120px;
    height: 1px;
    margin: 0 auto 24px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
    box-shadow: 0 0 10px var(--neon-cyan);
}

.footer-text {
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    margin-bottom: 6px;
}

.footer-sub {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--neon-cyan);
    text-shadow: 0 0 8px var(--neon-cyan);
    letter-spacing: 4px;
}

/* ============================================================
   Animations
   ============================================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scan-line {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100vh); }
}

/* ============================================================
   Responsive Design
   ============================================================ */

/* Tablet */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
        letter-spacing: 8px;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        background: rgba(5, 5, 15, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        padding: 24px 0;
        gap: 20px;
        border-bottom: 1px solid rgba(0, 255, 255, 0.2);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.4s ease, opacity 0.3s ease;
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-toggle {
        display: flex;
    }

    .games-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }

    .stats-overview {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .achievement-list {
        grid-template-columns: 1fr;
    }

    .bar-chart {
        gap: 8px;
    }

    .bar-label {
        font-size: 0.65rem;
    }
}

/* Mobile */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
        letter-spacing: 4px;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .hero-desc {
        font-size: 0.8rem;
    }

    .section-title {
        font-size: 1.6rem;
        letter-spacing: 3px;
    }

    .games-grid {
        grid-template-columns: 1fr;
    }

    .game-card-icon {
        width: 44px;
        height: 44px;
    }

    .stats-overview {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .bar-chart {
        height: 200px;
    }

    .achievement-card-header {
        flex-wrap: wrap;
    }

    .platform-chart {
        gap: 24px;
    }

    .filter-bar {
        gap: 8px;
    }

    .filter-btn {
        padding: 6px 14px;
        font-size: 0.75rem;
    }
}