/* ════════════════════════════════════════════════════════════════════
   RETRO CANVAS GALLERY — Estilos standalone
   ════════════════════════════════════════════════════════════════════ */

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

:root {
    --color-bg: #0a0a0f;
    --color-bg-2: #0f0f1a;
    --color-surface: #13131f;
    --color-border: #1e1e35;
    --color-accent: #00ffff;
    --color-accent-2: #7b2fff;
    --color-gold: #ffd700;
    --color-text: #c8c8d8;
    --color-text-dim: #6a6a8a;
    --font-mono: 'Courier Prime', 'Courier New', monospace;
    --font-display: 'Orbitron', 'Courier New', monospace;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --glow-cyan: 0 0 20px rgba(0, 255, 255, 0.4);
    --glow-purple: 0 0 20px rgba(123, 47, 255, 0.4);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

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

/* ── Fondo animado con rejilla ─────────────────────────────────────── */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
}

/* ════════════════════════════════════════════════════════════════════
   HEADER
   ════════════════════════════════════════════════════════════════════ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: 0.1em;
    color: #fff;
    text-decoration: none;
}

.logo-icon {
    font-size: 1.5rem;
    filter: drop-shadow(0 0 8px rgba(0, 255, 255, 0.8));
}

.logo-accent {
    color: var(--color-accent);
    text-shadow: var(--glow-cyan);
}

.header-nav {
    display: flex;
    gap: 28px;
}

.nav-link {
    color: var(--color-text-dim);
    text-decoration: none;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: color var(--transition);
}

.nav-link:hover {
    color: var(--color-accent);
}

/* ════════════════════════════════════════════════════════════════════
   INTRO SECTION
   ════════════════════════════════════════════════════════════════════ */
.intro-section {
    position: relative;
    z-index: 1;
    padding: 80px 24px 60px;
    text-align: center;
    background: radial-gradient(ellipse 80% 60% at 50% 0%,
            rgba(123, 47, 255, 0.12) 0%,
            transparent 70%);
}

.intro-content {
    max-width: 680px;
    margin: 0 auto;
}

.intro-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 6vw, 4rem);
    font-weight: 900;
    letter-spacing: 0.08em;
    color: #fff;
    margin-bottom: 20px;
    line-height: 1.1;
}

/* Efecto glitch en el título */
.glitch-text {
    position: relative;
    display: inline-block;
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    pointer-events: none;
}

.glitch-text::before {
    color: var(--color-accent);
    animation: glitch-1 3.5s infinite;
    clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
    transform: translateX(-2px);
    opacity: 0.7;
}

.glitch-text::after {
    color: var(--color-accent-2);
    animation: glitch-2 3.5s infinite;
    clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
    transform: translateX(2px);
    opacity: 0.7;
}

@keyframes glitch-1 {

    0%,
    90%,
    100% {
        transform: translateX(-2px) skew(0deg);
        opacity: 0.7;
    }

    92% {
        transform: translateX(4px) skew(2deg);
        opacity: 0.9;
    }

    94% {
        transform: translateX(-4px) skew(-1deg);
        opacity: 0.5;
    }

    96% {
        transform: translateX(2px) skew(0deg);
        opacity: 0.7;
    }
}

@keyframes glitch-2 {

    0%,
    90%,
    100% {
        transform: translateX(2px) skew(0deg);
        opacity: 0.7;
    }

    93% {
        transform: translateX(-4px) skew(-2deg);
        opacity: 0.9;
    }

    95% {
        transform: translateX(4px) skew(1deg);
        opacity: 0.5;
    }

    97% {
        transform: translateX(-2px) skew(0deg);
        opacity: 0.7;
    }
}

.intro-subtitle {
    font-size: 1rem;
    color: var(--color-text-dim);
    margin-bottom: 28px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.intro-subtitle strong {
    color: var(--color-accent);
}

.intro-badges {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.badge {
    background: rgba(0, 255, 255, 0.07);
    border: 1px solid rgba(0, 255, 255, 0.2);
    color: var(--color-accent);
    font-size: 0.78rem;
    padding: 6px 14px;
    border-radius: 999px;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

/* ════════════════════════════════════════════════════════════════════
   GALLERY SECTION
   ════════════════════════════════════════════════════════════════════ */
.gallery-section {
    position: relative;
    z-index: 1;
    padding: 0 0 48px;
}

/* Canvas wrapper */
.retro-canvas-wrapper {
    position: relative;
    width: 100%;
    margin: 0 auto 0;
    overflow: hidden;
    background: #000;
    box-shadow:
        0 0 0 1px rgba(0, 255, 255, 0.08),
        0 30px 80px rgba(0, 0, 0, 0.8);
}

#retro-canvas {
    display: block;
    width: 100% !important;
    height: auto !important;
}

/* Línea de escaneo animada sobre toda la galería */
.retro-canvas-wrapper::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(to bottom,
            transparent 0px,
            transparent 3px,
            rgba(0, 0, 0, 0.08) 3px,
            rgba(0, 0, 0, 0.08) 4px);
    pointer-events: none;
    z-index: 10;
}

/* Touch-action para scroll nativo en móvil */
.retro-canvas-wrapper canvas,
.retro-canvas-wrapper .canvas-container {
    touch-action: pan-y !important;
    -webkit-overflow-scrolling: touch;
}

/* Indicador de canal */
.channel-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 24px;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.channel-label {
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: var(--color-text-dim);
    text-transform: uppercase;
}

.channel-number {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--color-accent);
    text-shadow: var(--glow-cyan);
    letter-spacing: 0.1em;
    transition: all 0.3s;
}

/* ════════════════════════════════════════════════════════════════════
   FULLSCREEN OVERLAY
   ════════════════════════════════════════════════════════════════════ */
.fullscreen-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999999;
    background: rgba(0, 0, 0, 0.96);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    padding: 20px;
    pointer-events: none;
}

.fullscreen-overlay * {
    pointer-events: auto;
}

#fullscreen-main-img {
    max-width: 90%;
    max-height: 75vh;
    margin: auto;
    display: block;
    object-fit: contain;
    border-radius: var(--radius-sm);
    box-shadow: 0 0 60px rgba(0, 255, 255, 0.15);
}

#fullscreen-desc {
    color: #fff;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 1.4rem;
    margin: 0 auto 20px;
    max-width: 80%;
    background: rgba(0, 0, 0, 0.6);
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.exit-fullscreen {
    position: absolute;
    top: 20px;
    right: 20px;
    cursor: pointer;
    transition: transform var(--transition), filter var(--transition);
    width: 120px;
    background: rgba(0, 255, 0, 0.15);
    border-radius: var(--radius-md);
    padding: 6px;
    z-index: 1000;
    border: 1px solid rgba(0, 255, 0, 0.25);
}

.exit-fullscreen img {
    width: 100%;
    display: block;
    mix-blend-mode: screen;
}

.exit-fullscreen:hover {
    transform: scale(1.08);
    filter: brightness(1.3);
}

.nav-controls {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
    box-sizing: border-box;
    pointer-events: none;
}

.nav-btn {
    background: rgba(0, 0, 0, 0.55);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 3rem;
    cursor: pointer;
    border-radius: 50%;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    transition: background var(--transition), border-color var(--transition), transform var(--transition);
    pointer-events: auto;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.nav-btn:hover {
    background: rgba(0, 255, 255, 0.3);
    border-color: var(--color-accent);
    transform: scale(1.12);
    box-shadow: var(--glow-cyan);
}

/* ════════════════════════════════════════════════════════════════════
   ABOUT / INSTRUCCIONES
   ════════════════════════════════════════════════════════════════════ */
.about-section {
    position: relative;
    z-index: 1;
    padding: 72px 24px;
    background: radial-gradient(ellipse 100% 80% at 50% 100%,
            rgba(123, 47, 255, 0.08) 0%,
            transparent 70%);
    border-top: 1px solid var(--color-border);
}

.about-inner {
    max-width: 900px;
    margin: 0 auto;
}

.about-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: #fff;
    text-align: center;
    margin-bottom: 48px;
    text-transform: uppercase;
}

.about-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
    margin: 12px auto 0;
    border-radius: 2px;
}

.instructions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.instruction-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px 22px;
    text-align: center;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.instruction-card:hover {
    border-color: rgba(0, 255, 255, 0.35);
    box-shadow: var(--glow-cyan);
    transform: translateY(-4px);
}

.instruction-icon {
    display: block;
    font-size: 2.2rem;
    margin-bottom: 14px;
    filter: drop-shadow(0 0 8px rgba(0, 255, 255, 0.5));
}

.instruction-card h3 {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    text-transform: uppercase;
    margin-bottom: 10px;
}

.instruction-card p {
    font-size: 0.88rem;
    color: var(--color-text-dim);
    line-height: 1.55;
}

/* ════════════════════════════════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════════════════════════════════ */
.site-footer {
    position: relative;
    z-index: 1;
    padding: 28px 24px;
    text-align: center;
    border-top: 1px solid var(--color-border);
    font-size: 0.8rem;
    color: var(--color-text-dim);
    background: var(--color-surface);
}

a {

    color: var(--color-accent);
}

/* ════════════════════════════════════════════════════════════════════
   RESPONSIVE — MÓVIL
   ════════════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    .intro-section {
        padding: 48px 16px 36px;
    }

    .header-inner {
        padding: 0 16px;
    }

    #fullscreen-desc {
        font-size: 1rem;
        margin: 80px auto 16px;
        max-width: 90%;
        padding: 10px 14px;
    }

    .exit-fullscreen {
        top: 14px;
        right: 14px;
        width: 80px;
    }

    .nav-controls {
        padding: 0 12px;
    }

    .nav-btn {
        width: 50px;
        height: 50px;
        font-size: 2.2rem;
    }

    .channel-indicator {
        padding: 10px 16px;
    }

    .channel-number {
        font-size: 1.3rem;
    }

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

@media (max-width: 480px) {
    .instructions-grid {
        grid-template-columns: 1fr;
    }

    .header-nav {
        display: none;
    }
}