/* ═══════════════════════════════════════════════════════
   🎮 PyJuegos — Design System 🇵🇾
   Dark gaming theme, neon accents, albirroja edition
   ═══════════════════════════════════════════════════════ */

:root {
    --gv-bg: #0a0a1a;
    --gv-bg-card: #12122a;
    --gv-bg-card-hover: #1a1a3e;
    --gv-surface: #1e1e42;
    --gv-border: #2a2a5a;
    --gv-neon-blue: #00d4ff;
    --gv-neon-purple: #b44aff;
    --gv-neon-pink: #ff2d78;
    --gv-neon-green: #00ff88;
    --gv-neon-orange: #ff8800;
    --gv-neon-yellow: #ffe600;
    --gv-text: #e8e8f0;
    --gv-text-muted: #8888aa;
    --gv-white: #ffffff;
    --gv-radius: 16px;
    --gv-radius-sm: 10px;
    --gv-shadow: 0 8px 32px rgba(0,0,0,0.4);
    --gv-shadow-glow: 0 0 20px rgba(0,212,255,0.15);
    --gv-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --gv-max-w: 1280px;
    --gv-font: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --gv-font-game: 'Courier New', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--gv-font);
    background: var(--gv-bg);
    color: var(--gv-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { color: var(--gv-neon-blue); text-decoration: none; transition: var(--gv-transition); }
a:hover { color: var(--gv-neon-purple); }
img { max-width: 100%; height: auto; }

.gv-container { max-width: var(--gv-max-w); margin: 0 auto; padding: 0 24px; }

/* ── Header ── */
.gv-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(10,10,26,0.85);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,212,255,0.1);
    transition: var(--gv-transition);
}
.gv-header.scrolled { background: rgba(10,10,26,0.95); box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
.gv-header-inner {
    display: flex; align-items: center; justify-content: space-between;
    max-width: var(--gv-max-w); margin: 0 auto; padding: 12px 24px;
}
.gv-logo { display: flex; align-items: center; gap: 12px; font-size: 1.5rem; font-weight: 800; color: var(--gv-white); text-decoration: none; }
.gv-logo span { font-size: 2rem; }
.gv-logo em { font-style: normal; color: var(--gv-neon-blue); text-shadow: 0 0 10px rgba(0,212,255,0.5); }
.gv-nav { display: flex; align-items: center; gap: 8px; }
.gv-nav a {
    padding: 8px 16px; border-radius: var(--gv-radius-sm); font-weight: 600; font-size: 0.9rem;
    color: var(--gv-text-muted); transition: var(--gv-transition);
}
.gv-nav a:hover { color: var(--gv-neon-blue); background: rgba(0,212,255,0.08); }
.gv-nav a.active { color: var(--gv-neon-blue); background: rgba(0,212,255,0.12); }
.gv-mobile-toggle { display: none; background: none; border: none; color: var(--gv-white); font-size: 1.5rem; cursor: pointer; }

/* ── Hero ── */
.gv-hero {
    position: relative; padding: 140px 0 80px; text-align: center;
    overflow: hidden;
    background: linear-gradient(135deg, #0a0a1a 0%, #0f0f2e 30%, #1a0a3e 60%, #0a0a1a 100%);
}
.gv-hero::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(0,212,255,0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(180,74,255,0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 0%, rgba(255,45,120,0.05) 0%, transparent 40%);
    pointer-events: none;
}
.gv-hero-content { position: relative; z-index: 1; }
.gv-hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 900; line-height: 1.1;
    margin-bottom: 16px; color: var(--gv-white);
}
.gv-hero h1 .highlight {
    background: linear-gradient(135deg, var(--gv-neon-blue), var(--gv-neon-purple));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.gv-hero p {
    font-size: 1.2rem; color: var(--gv-text-muted); max-width: 600px;
    margin: 0 auto 32px;
}
.gv-hero-stats {
    display: flex; justify-content: center; gap: 40px; margin-top: 48px;
    flex-wrap: wrap;
}
.gv-hero-stat {
    text-align: center;
}
.gv-hero-stat strong {
    display: block; font-size: 2rem; font-weight: 900;
    background: linear-gradient(135deg, var(--gv-neon-blue), var(--gv-neon-green));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.gv-hero-stat span { font-size: 0.85rem; color: var(--gv-text-muted); }

/* ── Floating shapes ── */
.gv-float { position: absolute; border-radius: 50%; opacity: 0.03; pointer-events: none; }
.gv-float-1 { width: 400px; height: 400px; top: -100px; right: -100px; background: var(--gv-neon-blue); animation: float 8s ease-in-out infinite; }
.gv-float-2 { width: 300px; height: 300px; bottom: -50px; left: -80px; background: var(--gv-neon-purple); animation: float 6s ease-in-out infinite reverse; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-30px); } }

/* ── Search ── */
.gv-search {
    position: relative; max-width: 500px; margin: 0 auto 48px;
}
.gv-search input {
    width: 100%; padding: 16px 24px 16px 52px; border-radius: 50px;
    background: var(--gv-bg-card); border: 2px solid var(--gv-border);
    color: var(--gv-white); font-size: 1rem; outline: none;
    transition: var(--gv-transition);
}
.gv-search input:focus { border-color: var(--gv-neon-blue); box-shadow: 0 0 20px rgba(0,212,255,0.15); }
.gv-search input::placeholder { color: var(--gv-text-muted); }
.gv-search-icon { position: absolute; left: 20px; top: 50%; transform: translateY(-50%); font-size: 1.2rem; color: var(--gv-text-muted); }

/* ── Categories Filter ── */
.gv-categories {
    display: flex; justify-content: center; gap: 8px; margin-bottom: 48px;
    flex-wrap: wrap;
}
.gv-cat-btn {
    padding: 10px 20px; border-radius: 50px; border: 2px solid var(--gv-border);
    background: transparent; color: var(--gv-text-muted); font-weight: 600;
    font-size: 0.85rem; cursor: pointer; transition: var(--gv-transition);
}
.gv-cat-btn:hover { border-color: var(--gv-neon-blue); color: var(--gv-neon-blue); }
.gv-cat-btn.active {
    background: linear-gradient(135deg, var(--gv-neon-blue), var(--gv-neon-purple));
    border-color: transparent; color: var(--gv-white);
}

/* ── Game Grid ── */
.gv-section { padding: 40px 0; }
.gv-section-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 32px;
}
.gv-section-header h2 {
    font-size: 1.5rem; font-weight: 800;
    background: linear-gradient(135deg, var(--gv-neon-blue), var(--gv-neon-purple));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.gv-section-header a { font-size: 0.9rem; color: var(--gv-neon-blue); }

.gv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

/* ── Game Card ── */
.gv-card {
    position: relative; border-radius: var(--gv-radius); overflow: hidden;
    background: var(--gv-bg-card); border: 1px solid var(--gv-border);
    transition: var(--gv-transition); cursor: pointer; text-decoration: none; display: block;
}
.gv-card:hover {
    transform: translateY(-6px); border-color: var(--gv-neon-blue);
    box-shadow: 0 12px 40px rgba(0,212,255,0.15), 0 0 0 1px rgba(0,212,255,0.2);
}
.gv-card-thumb {
    height: 160px; display: flex; align-items: center; justify-content: center;
    font-size: 3.5rem; position: relative; overflow: hidden;
}
.gv-card-thumb::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 50%;
    background: linear-gradient(transparent, var(--gv-bg-card));
}
.gv-card-body { padding: 16px; }
.gv-card-title { font-size: 1rem; font-weight: 700; color: var(--gv-white); margin-bottom: 4px; }
.gv-card-desc { font-size: 0.8rem; color: var(--gv-text-muted); line-height: 1.4; margin-bottom: 12px; }
.gv-card-meta {
    display: flex; align-items: center; justify-content: space-between;
}
.gv-card-tag {
    padding: 4px 10px; border-radius: 50px; font-size: 0.7rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.gv-card-play {
    padding: 6px 14px; border-radius: 50px; font-size: 0.75rem; font-weight: 700;
    background: linear-gradient(135deg, var(--gv-neon-blue), var(--gv-neon-purple));
    color: var(--gv-white); transition: var(--gv-transition);
}
.gv-card:hover .gv-card-play { transform: scale(1.05); }

/* Tag colors */
.tag-classic { background: rgba(0,212,255,0.15); color: var(--gv-neon-blue); }
.tag-new { background: rgba(255,45,120,0.15); color: var(--gv-neon-pink); }
.tag-puzzle { background: rgba(180,74,255,0.15); color: var(--gv-neon-purple); }
.tag-action { background: rgba(255,136,0,0.15); color: var(--gv-neon-orange); }
.tag-arcade { background: rgba(0,255,136,0.15); color: var(--gv-neon-green); }
.tag-brain { background: rgba(255,230,0,0.15); color: var(--gv-neon-yellow); }

/* Background colors for cards */
.bg-blue { background: linear-gradient(135deg, #0a1a3a, #0f2a5a); }
.bg-purple { background: linear-gradient(135deg, #1a0a3a, #2a1a5a); }
.bg-pink { background: linear-gradient(135deg, #2a0a1a, #3a1a2a); }
.bg-green { background: linear-gradient(135deg, #0a2a1a, #1a3a2a); }
.bg-orange { background: linear-gradient(135deg, #2a1a0a, #3a2a1a); }
.bg-teal { background: linear-gradient(135deg, #0a2a2a, #1a3a3a); }

/* ── Game Page Layout ── */
.gv-game-page { min-height: 100vh; padding-top: 80px; }
.gv-game-header {
    text-align: center; padding: 32px 0; background: linear-gradient(135deg, #0a0a1a, #1a0a3e);
}
.gv-game-header h1 { font-size: 2rem; font-weight: 900; color: var(--gv-white); margin-bottom: 8px; }
.gv-game-header p { color: var(--gv-text-muted); }

.gv-game-frame {
    max-width: 800px; margin: 0 auto; padding: 24px;
}
.gv-game-canvas {
    width: 100%; aspect-ratio: 4/3; border-radius: var(--gv-radius);
    background: #000; display: block; border: 2px solid var(--gv-border);
}
.gv-game-controls {
    display: flex; justify-content: center; gap: 12px; margin-top: 16px; flex-wrap: wrap;
}
.gv-game-controls button {
    padding: 12px 24px; border-radius: var(--gv-radius-sm); border: none;
    font-weight: 700; cursor: pointer; transition: var(--gv-transition); font-size: 0.9rem;
}
.gv-btn-play {
    background: linear-gradient(135deg, var(--gv-neon-green), #00cc66); color: #000;
}
.gv-btn-play:hover { transform: scale(1.05); box-shadow: 0 0 20px rgba(0,255,136,0.3); }
.gv-btn-reset {
    background: var(--gv-surface); color: var(--gv-text-muted); border: 1px solid var(--gv-border);
}
.gv-btn-reset:hover { border-color: var(--gv-neon-pink); color: var(--gv-neon-pink); }

.gv-game-info {
    max-width: 800px; margin: 24px auto; padding: 0 24px;
}
.gv-game-info-card {
    background: var(--gv-bg-card); border-radius: var(--gv-radius);
    padding: 24px; border: 1px solid var(--gv-border);
}
.gv-game-info-card h3 { color: var(--gv-neon-blue); margin-bottom: 12px; }
.gv-game-info-card p { color: var(--gv-text-muted); line-height: 1.7; }
.gv-game-info-card .keys { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.gv-key {
    padding: 6px 14px; border-radius: 8px; background: var(--gv-surface);
    border: 1px solid var(--gv-border); font-family: var(--gv-font-game);
    font-size: 0.85rem; color: var(--gv-neon-blue);
}

.gv-back {
    display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px;
    border-radius: var(--gv-radius-sm); background: var(--gv-bg-card);
    border: 1px solid var(--gv-border); color: var(--gv-text-muted);
    font-weight: 600; transition: var(--gv-transition); margin: 24px;
}
.gv-back:hover { border-color: var(--gv-neon-blue); color: var(--gv-neon-blue); }

/* ── Score display ── */
.gv-score-bar {
    display: flex; justify-content: center; gap: 32px; margin: 16px 0;
    flex-wrap: wrap;
}
.gv-score-item {
    text-align: center; padding: 12px 20px; border-radius: var(--gv-radius-sm);
    background: var(--gv-bg-card); border: 1px solid var(--gv-border);
    min-width: 100px;
}
.gv-score-item label { display: block; font-size: 0.7rem; color: var(--gv-text-muted); text-transform: uppercase; letter-spacing: 1px; }
.gv-score-item strong { font-size: 1.5rem; color: var(--gv-neon-green); font-family: var(--gv-font-game); }

/* ── Footer ── */
.gv-footer {
    padding: 48px 0 24px; border-top: 1px solid var(--gv-border);
    margin-top: 80px; text-align: center;
}
.gv-footer p { color: var(--gv-text-muted); font-size: 0.85rem; }
.gv-footer a { color: var(--gv-neon-blue); }

/* ── Responsive ── */
@media (max-width: 768px) {
    .gv-nav { display: none; }
    .gv-mobile-toggle { display: block; }
    .gv-hero h1 { font-size: 2rem; }
    .gv-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
    .gv-card-thumb { height: 120px; font-size: 2.5rem; }
    .gv-hero-stats { gap: 20px; }
}

/* ── Animations ── */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.gv-animate { animation: fadeInUp 0.5s ease forwards; }
.gv-animate:nth-child(1) { animation-delay: 0.05s; }
.gv-animate:nth-child(2) { animation-delay: 0.1s; }
.gv-animate:nth-child(3) { animation-delay: 0.15s; }
.gv-animate:nth-child(4) { animation-delay: 0.2s; }
.gv-animate:nth-child(5) { animation-delay: 0.25s; }
.gv-animate:nth-child(6) { animation-delay: 0.3s; }
.gv-animate:nth-child(7) { animation-delay: 0.35s; }
.gv-animate:nth-child(8) { animation-delay: 0.4s; }