/* ==========================================================================
   RUMBALIA DIGITAL TECHNOLOGY INTERFACE // CSS ARCHITECTURE
   Concepto: Laboratorio Tecnológico / Centro de Datos / Terminal Avanzada
   Dominio: rumbalia.site
   ========================================================================== */

:root {
    --bg-black: #030508;
    --bg-carbon: #0a0e14;
    --bg-dark: #101622;
    --bg-metallic: #182232;
    --border-cyan: rgba(0, 229, 255, 0.2);
    --border-blue: rgba(0, 112, 243, 0.3);
    
    --accent-blue: #0070f3;
    --accent-cyan: #00e5ff;
    --accent-glow: rgba(0, 229, 255, 0.25);
    
    --text-main: #f0f6fc;
    --text-muted: #8b949e;
    --text-dim: #484f58;
    
    --font-mono: 'JetBrains Mono', monospace;
    --font-system: 'Inter', sans-serif;
    
    --transition-tech: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-black);
    color: var(--text-main);
    font-family: var(--font-system);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: " ";
    display: block;
    position: fixed;
    top: 0; left: 0; bottom: 0; right: 0;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.03));
    z-index: 99999;
    background-size: 100% 4px, 6px 100%;
    pointer-events: none;
    opacity: 0.4;
}

/* Loading Screen Terminal */
.system-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-black);
    z-index: 100000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-family: var(--font-mono);
    color: var(--accent-cyan);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.system-loader.terminated {
    opacity: 0;
    visibility: hidden;
}

.loader-terminal-box {
    width: 420px;
    max-width: 90vw;
    border: 1px solid var(--border-cyan);
    background: var(--bg-carbon);
    padding: 2rem;
    box-shadow: 0 0 30px rgba(0, 229, 255, 0.1);
}

.loader-header-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-cyan);
    padding-bottom: 0.5rem;
}

.loader-log {
    font-size: 0.85rem;
    margin-bottom: 1rem;
    min-height: 50px;
}

.loader-progress-container {
    width: 100%;
    height: 6px;
    background: var(--bg-dark);
    border: 1px solid var(--border-cyan);
    position: relative;
    overflow: hidden;
}

.loader-progress-bar {
    position: absolute;
    top: 0; left: 0;
    height: 100%;
    width: 0%;
    background: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-cyan);
    transition: width 0.05s linear;
}

/* Aviso Institucional Top */
.system-disclaimer-matrix {
    background: var(--bg-carbon);
    border-bottom: 1px solid var(--border-blue);
    padding: 0.5rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: center;
    letter-spacing: 0.05em;
    position: relative;
    z-index: 1000;
}

.system-disclaimer-matrix span {
    color: var(--accent-cyan);
}

/* Header HUD / Experimental */
.hud-nav-system {
    position: sticky;
    top: 0;
    background: rgba(3, 5, 8, 0.9);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-cyan);
    z-index: 900;
    padding: 1rem 2rem;
}

.hud-nav-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hud-brand {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    letter-spacing: 0.1em;
}

.hud-brand-node {
    width: 10px;
    height: 10px;
    background: var(--accent-cyan);
    box-shadow: 0 0 12px var(--accent-cyan);
    animation: node-pulse 2s infinite;
}

@keyframes node-pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(0.7); opacity: 0.4; }
    100% { transform: scale(1); opacity: 1; }
}

.hud-menu-nodes {
    display: flex;
    gap: 2rem;
    list-style: none;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.hud-menu-nodes a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-tech);
    position: relative;
    padding: 0.3rem 0;
}

.hud-menu-nodes a:hover, .hud-menu-nodes a.active {
    color: var(--accent-cyan);
    text-shadow: 0 0 8px rgba(0, 229, 255, 0.4);
}

.hud-telemetry-badge {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: var(--bg-carbon);
    border: 1px solid var(--border-blue);
    padding: 0.4rem 1rem;
}

.telemetry-val {
    color: var(--accent-cyan);
}

.scroll-line-progress {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    background: var(--accent-cyan);
    z-index: 9995;
    width: 0%;
    box-shadow: 0 0 10px var(--accent-cyan);
}

/* Layout General & Secciones (Mínimo 8 Secciones Únicas) */
.tech-container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 2rem;
}

.tech-section {
    padding: 7rem 0;
    border-bottom: 1px solid var(--border-blue);
    position: relative;
}

/* 01 — HERO / SYSTEM INTRO */
.hero-tech-system {
    min-height: 85vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at 70% 50%, rgba(0, 112, 243, 0.08) 0%, transparent 60%);
}

.hero-grid-matrix {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

.hero-tag-system {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-cyan);
    letter-spacing: 0.2em;
    background: rgba(0, 229, 255, 0.05);
    border: 1px solid var(--border-cyan);
    padding: 0.4rem 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 2rem;
}

.glitch-title {
    font-family: var(--font-mono);
    font-size: clamp(2.5rem, 4.5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.glitch-title span {
    color: var(--accent-cyan);
    text-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 650px;
    font-family: var(--font-system);
}

.hero-btn-cluster {
    display: flex;
    gap: 1.5rem;
}

.tech-btn-primary {
    background: transparent;
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    padding: 1rem 2.2rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    letter-spacing: 0.1em;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    transition: var(--transition-tech);
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.1);
}

.tech-btn-primary:hover {
    background: var(--accent-cyan);
    color: var(--bg-black);
    box-shadow: 0 0 30px var(--accent-cyan);
}

.tech-btn-secondary {
    background: var(--bg-carbon);
    border: 1px solid var(--border-blue);
    color: var(--text-main);
    padding: 1rem 2.2rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    letter-spacing: 0.1em;
    transition: var(--transition-tech);
}

.tech-btn-secondary:hover {
    border-color: var(--accent-blue);
    color: var(--accent-cyan);
}

.hero-hologram-box {
    position: relative;
    border: 1px solid var(--border-cyan);
    background: var(--bg-carbon);
    padding: 1rem;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.8);
}

.hero-hologram-box img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    filter: grayscale(30%) contrast(1.1) hue-rotate(180deg);
    display: block;
}

.hologram-data-overlay {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: rgba(3, 5, 8, 0.85);
    border: 1px solid var(--border-cyan);
    padding: 1.2rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

/* 02 — INFORMATION INTERFACE */
.section-header-tech {
    margin-bottom: 4rem;
}

.section-code-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-cyan);
    letter-spacing: 0.2em;
    display: block;
    margin-bottom: 0.8rem;
}

.section-header-tech h2 {
    font-family: var(--font-mono);
    font-size: clamp(2rem, 3vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.interface-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.interface-node-card {
    background: var(--bg-carbon);
    border: 1px solid var(--border-blue);
    padding: 2.5rem;
    position: relative;
    transition: var(--transition-tech);
}

.interface-node-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 25px rgba(0, 229, 255, 0.15);
    transform: translateY(-4px);
}

.node-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-cyan);
}

.interface-node-card h3 {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.interface-node-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.node-tech-line {
    height: 1px;
    width: 100%;
    background: var(--border-blue);
    position: relative;
}

.node-tech-line::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 30%;
    height: 100%;
    background: var(--accent-cyan);
}

/* 03 — CONCEPT MAP / NODES */
.concept-map-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.concept-text-content h3 {
    font-family: var(--font-mono);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.concept-text-content p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

.concept-checklist {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.concept-check-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.concept-check-box {
    width: 24px;
    height: 24px;
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.concept-visual-matrix {
    border: 1px solid var(--border-cyan);
    background: var(--bg-carbon);
    padding: 1rem;
    position: relative;
}

.concept-visual-matrix img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    filter: contrast(1.1) brightness(0.9);
    display: block;
}

/* 04 — DATA SECTION & METRICS */
.data-metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.metric-box {
    background: var(--bg-carbon);
    border: 1px solid var(--border-blue);
    padding: 2.5rem;
    text-align: center;
    font-family: var(--font-mono);
}

.metric-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 0.5rem;
    text-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

/* 05 — INTERACTIVE EXPLORER (TABS) */
.explorer-tabs-wrapper {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    background: var(--bg-carbon);
    border: 1px solid var(--border-blue);
    padding: 3rem;
}

.explorer-tab-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tab-btn {
    background: var(--bg-dark);
    border: 1px solid var(--border-blue);
    color: var(--text-muted);
    padding: 1.2rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-align: left;
    cursor: pointer;
    transition: var(--transition-tech);
}

.tab-btn.active, .tab-btn:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: rgba(0, 229, 255, 0.05);
    box-shadow: inset 4px 0 0 var(--accent-cyan);
}

.explorer-tab-content-area {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeInTab 0.4s ease;
}

@keyframes fadeInTab {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.tab-pane h3 {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--accent-cyan);
}

.tab-pane p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
}

/* 06 — VISUAL / IMAGE EXPERIENCE */
.visual-experience-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.visual-code-panel {
    background: var(--bg-carbon);
    border: 1px solid var(--border-cyan);
    padding: 2.5rem;
    font-family: var(--font-mono);
}

.visual-code-panel h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.visual-code-panel p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.terminal-code-snippet {
    background: var(--bg-black);
    border: 1px solid var(--border-blue);
    padding: 1.2rem;
    font-size: 0.8rem;
    color: var(--accent-cyan);
}

.visual-image-frame {
    position: relative;
    border: 1px solid var(--border-blue);
    overflow: hidden;
}

.visual-image-frame img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
    filter: grayscale(20%) contrast(1.1);
}

/* 07 — SCROLL STORY */
.scroll-story-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.scroll-story-card {
    background: var(--bg-carbon);
    border: 1px solid var(--border-blue);
    padding: 2.5rem;
    font-family: var(--font-mono);
    position: relative;
}

.scroll-story-card .story-num {
    font-size: 2.5rem;
    color: var(--accent-cyan);
    font-weight: 700;
    margin-bottom: 1rem;
    display: block;
}

.scroll-story-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.scroll-story-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-family: var(--font-system);
}

/* 08 — FINAL SYSTEM / CTA */
.final-system-cta {
    background: radial-gradient(circle at center, var(--bg-dark) 0%, var(--bg-black) 100%);
    text-align: center;
}

.cta-terminal-box {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-carbon);
    border: 1px solid var(--border-cyan);
    padding: 5rem 3rem;
    box-shadow: 0 0 50px rgba(0, 229, 255, 0.1);
    position: relative;
}

.cta-terminal-box::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 2px;
    background: var(--accent-cyan);
    box-shadow: 0 0 20px var(--accent-cyan);
}

.cta-terminal-box h2 {
    font-family: var(--font-mono);
    font-size: clamp(2rem, 3.5vw, 3.2rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.cta-terminal-box p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 650px;
    margin: 0 auto 3rem auto;
}

.cta-buttons-flex {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

/* Footer Tecnológico */
.tech-system-footer {
    background: var(--bg-carbon);
    border-top: 1px solid var(--border-blue);
    padding: 4rem 0 2rem 0;
    font-family: var(--font-mono);
}

.footer-grid-tech {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand-col p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 1rem 0;
    max-width: 400px;
    font-family: var(--font-system);
}

.footer-links-col h4 {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    color: var(--accent-cyan);
}

.footer-links-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    font-size: 0.85rem;
}

.footer-links-col ul a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-tech);
}

.footer-links-col ul a:hover {
    color: var(--accent-cyan);
}

.footer-bottom-row {
    border-top: 1px solid var(--border-blue);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-dim);
}

@media (max-width: 1024px) {
    .hero-grid-matrix, .concept-map-container, .explorer-tabs-wrapper, .visual-experience-grid, .scroll-story-container, .data-metrics-grid, .interface-grid-3, .footer-grid-tech {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .hud-menu-nodes {
        display: none;
    }
}