/* 
   SYSTEM CONFIGURATION & STYLE DESIGN SYSTEM
   AUTHOR: Santiago Campos
   VERSION: 4.2.1-PROD
*/

/* --- 1. VARIABLES & TOKENS --- */
:root {
    /* Color Palette */
    --color-bg-pure: #000000;
    --color-bg-deep: #030307;
    --color-bg-card: #090912;
    --color-bg-card-hover: #0d0d1f;
    --color-bg-input: #0e0e1a;
    --color-bg-input-focus: #121226;
    
    --color-neon-purple: #a855f7; /* hsl(270, 100%, 60%) approx */
    --color-neon-purple-glow: rgba(168, 85, 247, 0.35);
    --color-electric-blue: #06b6d4; /* hsl(195, 100%, 50%) approx */
    --color-electric-blue-glow: rgba(6, 182, 212, 0.35);
    
    --color-success: #10b981; /* hsl(145, 100%, 50%) approx */
    --color-success-glow: rgba(16, 185, 129, 0.25);
    --color-error: #ef4444; /* hsl(350, 100%, 55%) approx */
    --color-error-glow: rgba(239, 68, 68, 0.25);
    
    --color-text-pure: #ffffff;
    --color-text-light: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-text-dim: #64748b;
    
    /* Fonts */
    --font-title: 'Orbitron', sans-serif;
    --font-body: 'Space Grotesk', sans-serif;
    --font-mono: 'Share Tech Mono', monospace;
    
    /* Layout */
    --header-height: 80px;
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-slow: 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
    
    /* Cyberpunk specifics */
    --neon-border: 1px solid rgba(168, 85, 247, 0.2);
    --blue-border: 1px solid rgba(6, 182, 212, 0.2);
    --glass-background: rgba(9, 9, 18, 0.75);
    --glass-border: 1px solid rgba(255, 255, 255, 0.08);
}

/* --- LIGHT THEME VARIABLES --- */
:root[data-theme="light"] {
    --color-bg-pure: #ffffff;
    --color-bg-deep: #f8fafc;
    --color-bg-card: #f1f5f9;
    --color-bg-card-hover: #e2e8f0;
    --color-bg-input: #ffffff;
    --color-bg-input-focus: #f1f5f9;
    
    --color-neon-purple: #7c3aed;
    --color-neon-purple-glow: rgba(124, 58, 237, 0.15);
    --color-electric-blue: #0891b2;
    --color-electric-blue-glow: rgba(8, 145, 178, 0.15);
    
    --color-text-pure: #0f172a;
    --color-text-light: #1e293b;
    --color-text-muted: #475569;
    --color-text-dim: #64748b;
    
    --neon-border: 1px solid rgba(124, 58, 237, 0.15);
    --blue-border: 1px solid rgba(8, 145, 178, 0.15);
    --glass-background: rgba(255, 255, 255, 0.85);
    --glass-border: 1px solid rgba(15, 23, 42, 0.08);
}

/* --- 2. BASE & RESET --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--color-bg-pure);
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-deep);
    color: var(--color-text-light);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-pure);
}
::-webkit-scrollbar-thumb {
    background: #1e1b4b;
    border: 2px solid var(--color-bg-pure);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-neon-purple);
    box-shadow: 0 0 10px var(--color-neon-purple);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Common Grids Overlay */
.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    background-position: center;
    pointer-events: none;
    z-index: 1;
}

/* --- 3. PRELOADER (PANTALLA DE CARGA) --- */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.preloader-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-pure);
    background-image: 
        linear-gradient(rgba(168, 85, 247, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(168, 85, 247, 0.015) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 1;
}

.preloader-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 450px;
    width: 90%;
    text-align: center;
}

/* Glitch Title Animation */
.glitch-container {
    margin-bottom: 2rem;
}

.preloader-title {
    font-family: var(--font-title);
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: 0.3em;
    color: var(--color-text-pure);
    position: relative;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

/* Loader Visual elements */
.loader-visual {
    position: relative;
    width: 150px;
    height: 150px;
    margin-bottom: 2rem;
}

.outer-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid transparent;
    border-top-color: var(--color-neon-purple);
    border-bottom-color: var(--color-neon-purple);
    border-radius: 50%;
    animation: rotateCW 2s linear infinite;
    filter: drop-shadow(0 0 8px var(--color-neon-purple-glow));
}

.inner-ring {
    position: absolute;
    top: 15px;
    left: 15px;
    width: 120px;
    height: 120px;
    border: 2px solid transparent;
    border-left-color: var(--color-electric-blue);
    border-right-color: var(--color-electric-blue);
    border-radius: 50%;
    animation: rotateCCW 1.5s linear infinite;
    filter: drop-shadow(0 0 8px var(--color-electric-blue-glow));
}

.core-node {
    position: absolute;
    top: 65px;
    left: 65px;
    width: 20px;
    height: 20px;
    background-color: var(--color-text-pure);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--color-text-pure), 0 0 30px var(--color-electric-blue);
    animation: pulseNode 1s ease-in-out infinite alternate;
}

.scan-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-electric-blue), transparent);
    animation: preloaderScan 2.5s ease-in-out infinite;
    opacity: 0.8;
}

/* Percentage Container */
.loader-percentage-container {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    color: var(--color-text-pure);
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.loader-percentage-container .prefix {
    color: var(--color-text-dim);
    font-size: 1rem;
    margin-right: 8px;
}

#load-percentage {
    font-weight: bold;
    color: var(--color-electric-blue);
    text-shadow: 0 0 8px var(--color-electric-blue-glow);
}

.loader-percentage-container .suffix {
    color: var(--color-neon-purple);
}

/* Progress bar */
.loader-progress-bar {
    width: 100%;
    height: 4px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 2px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.02);
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-neon-purple), var(--color-electric-blue));
    box-shadow: 0 0 10px var(--color-electric-blue);
    transition: width 0.1s linear;
}

/* Log lines */
.loader-terminal-log {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-dim);
    text-align: left;
    width: 100%;
    min-height: 48px;
    line-height: 1.5;
    padding: 10px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius-sm);
}

/* Animations for Preloader */
@keyframes rotateCW {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes rotateCCW {
    from { transform: rotate(360deg); }
    to { transform: rotate(0deg); }
}

@keyframes pulseNode {
    from { transform: scale(0.8); opacity: 0.7; }
    to { transform: scale(1.2); opacity: 1; }
}

@keyframes preloaderScan {
    0% { top: 0%; }
    50% { top: 100%; }
    100% { top: 0%; }
}

/* Hide preloader class */
#preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

/* --- 4. HEADER & NAVIGATION --- */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    background: rgba(3, 3, 7, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: background var(--transition-normal);
}

#main-header.scrolled {
    background: rgba(0, 0, 0, 0.9);
    border-bottom: 1px solid rgba(168, 85, 247, 0.15);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.header-container {
    max-width: 1200px;
    height: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-title);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--color-text-pure);
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
}

.logo-img {
    height: 42px;
    width: auto;
    margin-right: 12px;
    object-fit: contain;
    transition: transform var(--transition-fast);
}

.logo:hover .logo-img {
    transform: scale(1.08) rotate(-2deg);
}

.logo-accent {
    color: var(--color-neon-purple);
    margin-right: 6px;
    text-shadow: 0 0 10px var(--color-neon-purple-glow);
}

.logo-sub {
    color: var(--color-electric-blue);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-left: 6px;
}

#navbar ul {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-electric-blue), var(--color-neon-purple));
    transition: width var(--transition-normal);
}

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

.nav-link.active {
    color: var(--color-text-pure);
    text-shadow: 0 0 8px var(--color-electric-blue-glow);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.language-selector {
    position: relative;
    font-family: var(--font-mono);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 6px 14px;
    border-radius: var(--border-radius-sm);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
}

.lang-btn:hover {
    color: var(--color-text-pure);
    border-color: var(--color-neon-purple);
    box-shadow: 0 0 12px var(--color-neon-purple-glow);
}

.lang-chevron {
    font-size: 0.55rem;
    transition: transform var(--transition-fast);
    color: var(--color-text-dim);
}

.language-selector.active .lang-chevron {
    transform: rotate(180deg);
    color: var(--color-neon-purple);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: rgba(9, 9, 18, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: var(--border-radius-sm);
    padding: 6px 0;
    width: 145px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.6), 0 0 15px var(--color-neon-purple-glow);
    display: none;
    flex-direction: column;
    z-index: 1002;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.language-selector.active .lang-dropdown {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.lang-option {
    padding: 8px 16px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.lang-option:hover {
    color: var(--color-text-pure);
    background: rgba(168, 85, 247, 0.18);
}

.lang-option.active {
    color: var(--color-electric-blue);
    background: rgba(6, 182, 212, 0.1);
    font-weight: bold;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.menu-bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-pure);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* --- 5. BUTTONS STYLE --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    padding: 0.9rem 2.2rem;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-neon-purple) 0%, #7c3aed 100%);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px var(--color-neon-purple-glow);
}

.btn-primary:active {
    transform: translateY(1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.02);
    color: var(--color-text-light);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--color-electric-blue);
    color: var(--color-text-pure);
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.15);
}

.btn-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.25),
        transparent
    );
    transition: 0.5s;
}

.btn-glow:hover::before {
    left: 100%;
}

.btn-full {
    width: 100%;
}

/* --- 6. HERO SECTION --- */
#hero {
    position: relative;
    min-height: 100vh;
    padding-top: calc(var(--header-height) + 2rem);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background-color: var(--color-bg-deep);
}

#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: auto;
}

.hero-container {
    position: relative;
    z-index: 2;
    max-width: 900px;
    width: 90%;
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-electric-blue);
    background: rgba(6, 182, 212, 0.05);
    border: 1px solid rgba(6, 182, 212, 0.25);
    padding: 8px 16px;
    border-radius: 30px;
    margin-bottom: 2rem;
    letter-spacing: 0.1em;
    backdrop-filter: blur(4px);
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.05);
}

.hero-badge .badge-icon {
    font-size: 0.95rem;
    animation: flashIcon 1.5s steps(2, start) infinite;
}

@keyframes flashIcon {
    to { visibility: hidden; }
}

.hero-title {
    font-family: var(--font-title);
    font-size: 3.75rem;
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -0.01em;
    color: var(--color-text-pure);
    margin-bottom: 1.5rem;
    text-shadow: 0 0 30px rgba(0, 0, 0, 0.6);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-electric-blue) 0%, var(--color-neon-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    filter: drop-shadow(0 0 15px rgba(168, 85, 247, 0.15));
}

.hero-description {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    max-width: 650px;
    margin-bottom: 2.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 4rem;
}

/* Hero Metrics row */
.hero-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    width: 100%;
    max-width: 700px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 2rem;
    gap: 1.5rem;
}

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

.metric-value {
    font-family: var(--font-title);
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--color-text-pure);
    margin-bottom: 4px;
    background: linear-gradient(90deg, #fff, var(--color-electric-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: opacity var(--transition-normal);
}

.scroll-text {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-dim);
    letter-spacing: 0.15em;
    margin-bottom: 8px;
}

.scroll-mouse {
    width: 20px;
    height: 32px;
    border: 2px solid var(--color-text-dim);
    border-radius: 10px;
    position: relative;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background-color: var(--color-electric-blue);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheelAnim 1.6s ease-in-out infinite;
    box-shadow: 0 0 6px var(--color-electric-blue);
}

@keyframes scrollWheelAnim {
    0% { top: 6px; opacity: 0; }
    30% { opacity: 1; }
    100% { top: 18px; opacity: 0; }
}

/* --- 7. SECTIONS GENERAL STYLING --- */
section {
    padding: 6.5rem 0;
    position: relative;
}

.section-container {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-subtitle {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-neon-purple);
    letter-spacing: 0.2em;
    font-weight: 600;
    display: block;
    margin-bottom: 8px;
}

.section-title {
    font-family: var(--font-title);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--color-text-pure);
    letter-spacing: -0.01em;
}

.title-underline {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-electric-blue), var(--color-neon-purple));
    margin: 15px auto 0;
    border-radius: 2px;
    box-shadow: 0 0 10px var(--color-electric-blue-glow);
}

/* --- 8. PACKAGES SECTION --- */
#packages {
    background-color: #040409;
}

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

.package-card {
    background-color: var(--color-bg-card);
    border: var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

/* Border gradient effect through pseudo elements */
.package-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius-lg);
    padding: 1px; /* width of border */
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 50%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 3;
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.04) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
    z-index: 0;
}

/* Specific active border glow overlay */
.card-border-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius-lg);
    border: 1.5px solid transparent;
    pointer-events: none;
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
    z-index: 4;
}

/* Card hover and focus visual effects */
.package-card:hover {
    transform: translateY(-8px);
    background-color: var(--color-bg-card-hover);
    border-color: rgba(168, 85, 247, 0.4);
}

.package-card:hover .card-border-glow {
    border-color: var(--color-neon-purple);
    box-shadow: 0 0 15px var(--color-neon-purple-glow), inset 0 0 8px rgba(168, 85, 247, 0.1);
}

.package-card:hover .card-glow {
    opacity: 1;
}

/* Popular (Avanzado) Card Styling */
.package-card.popular {
    background-color: rgba(9, 9, 22, 0.85);
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    transform: scale(1.03);
    z-index: 5;
}

.package-card.popular::before {
    background: linear-gradient(180deg, rgba(6, 182, 212, 0.4) 0%, transparent 80%);
}

.package-card.popular .card-glow {
    background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, transparent 60%);
    opacity: 0.6;
}

.package-card.popular:hover {
    transform: scale(1.04) translateY(-8px);
    border-color: rgba(6, 182, 212, 0.6);
}

.package-card.popular:hover .card-border-glow {
    border-color: var(--color-electric-blue);
    box-shadow: 0 0 25px var(--color-electric-blue-glow), inset 0 0 12px rgba(6, 182, 212, 0.15);
}

/* Badge tags inside card */
.package-badge {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: bold;
    letter-spacing: 0.1em;
    padding: 4px 10px;
    border-radius: var(--border-radius-sm);
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-muted);
    z-index: 2;
}

.package-card.popular .package-badge {
    background-color: rgba(6, 182, 212, 0.15);
    border-color: rgba(6, 182, 212, 0.3);
    color: var(--color-electric-blue);
    box-shadow: 0 0 8px rgba(6, 182, 212, 0.1);
}

/* Card Header */
.package-header {
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.package-title {
    font-family: var(--font-title);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-pure);
    margin-bottom: 0.5rem;
}

.package-subtitle {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    min-height: 40px;
}

.package-price {
    margin-top: 1.5rem;
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.package-price .currency {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    text-transform: uppercase;
}

.package-price .amount {
    font-family: var(--font-title);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--color-text-pure);
}

.package-card.popular .package-price .amount {
    color: var(--color-electric-blue);
    text-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}

.package-price .period {
    font-size: 0.85rem;
    color: var(--color-text-dim);
}

/* Card Features list */
.package-features {
    margin-bottom: 2.5rem;
    flex-grow: 1;
    position: relative;
    z-index: 2;
}

.package-features ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.package-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.package-features li.disabled {
    color: var(--color-text-dim);
    text-decoration: line-through;
}

.feature-icon {
    width: 16px;
    height: 16px;
    margin-top: 3px;
    flex-shrink: 0;
}

li:not(.disabled) .feature-icon {
    color: var(--color-electric-blue);
    filter: drop-shadow(0 0 4px var(--color-electric-blue-glow));
}

.package-card:not(.popular):hover li:not(.disabled) .feature-icon {
    color: var(--color-neon-purple);
    filter: drop-shadow(0 0 4px var(--color-neon-purple-glow));
}

li.disabled .feature-icon {
    color: var(--color-text-dim);
}

/* Card Footer */
.package-footer {
    position: relative;
    z-index: 2;
}

.package-footer .btn {
    width: 100%;
}

/* --- 9. CONTACT SECTION & FORM --- */
#contact {
    background-color: var(--color-bg-deep);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: stretch;
}

/* Glassmorphic card styling */
.contact-glass-card {
    background: var(--glass-background);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: var(--glass-border);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    overflow: hidden;
    position: relative;
}

.contact-glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-neon-purple), var(--color-electric-blue), transparent);
    z-index: 3;
}

.form-cyber-header {
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.terminal-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.terminal-dots .dot.red { background-color: #ef4444; }
.terminal-dots .dot.yellow { background-color: #eab308; }
.terminal-dots .dot.green { background-color: #22c55e; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
}

.terminal-status {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-neon-purple);
    background: rgba(168, 85, 247, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    border: 1px solid rgba(168, 85, 247, 0.2);
}

.cyber-form {
    padding: 2.5rem 2.5rem;
}

.form-row {
    margin-bottom: 1.75rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.input-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
}

.char-count {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-dim);
}

.input-with-icon {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 14px;
    color: var(--color-text-dim);
    font-family: var(--font-mono);
    font-size: 0.95rem;
    pointer-events: none;
    transition: color var(--transition-fast);
}

.cyber-input {
    width: 100%;
    background-color: var(--color-bg-input);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    padding: 0.85rem 1rem 0.85rem 2.5rem;
    color: var(--color-text-pure);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-normal);
}

.cyber-input::placeholder {
    color: var(--color-text-dim);
    opacity: 0.6;
}

/* Custom styles for select option dropdowns */
.custom-select-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.cyber-select {
    width: 100%;
    background-color: var(--color-bg-input);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    padding: 0.85rem 2.5rem 0.85rem 1rem;
    color: var(--color-text-pure);
    font-family: var(--font-body);
    font-size: 0.95rem;
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.cyber-select:focus {
    border-color: var(--color-neon-purple);
    box-shadow: 0 0 10px var(--color-neon-purple-glow);
    background-color: var(--color-bg-input-focus);
    outline: none;
}

.select-arrow {
    position: absolute;
    right: 16px;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid var(--color-text-dim);
    pointer-events: none;
    transition: border-top-color var(--transition-fast);
}

.cyber-select:focus + .select-arrow {
    border-top-color: var(--color-neon-purple);
}

.cyber-textarea {
    resize: none;
    height: 120px;
}

.textarea-icon-align .input-icon {
    top: 14px;
    align-self: flex-start;
}

.textarea-icon-align .cyber-textarea {
    padding-top: 0.85rem;
}

/* Cyber Focus states */
.cyber-input:focus {
    outline: none;
    border-color: var(--color-neon-purple);
    background-color: var(--color-bg-input-focus);
    box-shadow: 0 0 12px var(--color-neon-purple-glow);
}

.cyber-input:focus + .input-icon {
    color: var(--color-neon-purple);
}

/* Validations state style classes */
.input-group.valid .cyber-input {
    border-color: var(--color-success);
    box-shadow: 0 0 10px var(--color-success-glow);
}

.input-group.valid .validation-badge::before {
    content: '✓';
    color: var(--color-success);
    text-shadow: 0 0 8px var(--color-success);
}

.input-group.invalid .cyber-input {
    border-color: var(--color-error);
    box-shadow: 0 0 10px var(--color-error-glow);
}

.input-group.invalid .validation-badge::before {
    content: '✗';
    color: var(--color-error);
    text-shadow: 0 0 8px var(--color-error);
}

.validation-badge {
    position: absolute;
    right: 14px;
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: 0.95rem;
    pointer-events: none;
}

.error-message {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-error);
    display: none;
    margin-top: 4px;
    animation: slideDown 0.2s ease-out forwards;
}

.input-group.invalid .error-message {
    display: block;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Form selected option pulse style */
.plan-selector-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
}

.cyber-select.highlighted {
    border-color: var(--color-electric-blue) !important;
    box-shadow: 0 0 15px var(--color-electric-blue-glow) !important;
    animation: selectPulse 1s ease-in-out infinite alternate;
}

@keyframes selectPulse {
    from { border-color: rgba(6, 182, 212, 0.4); }
    to { border-color: var(--color-electric-blue); }
}

/* Submit button Loader spinner */
.loader-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--color-text-pure);
    animation: spin 0.8s linear infinite;
    position: absolute;
    right: 2rem;
}

.loader-spinner.hidden {
    display: none;
}

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

/* Side panel contact info */
.contact-info-panel {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1rem 0;
}

.terminal-text-block h3 {
    font-family: var(--font-title);
    font-size: 1.2rem;
    color: var(--color-text-pure);
    margin-bottom: 1rem;
    letter-spacing: 0.1em;
}

.terminal-text-block p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.system-channels {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.system-channels li {
    display: flex;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
}

.channel-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--color-text-dim);
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

.channel-value {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--color-text-light);
    word-break: break-all;
}

.channel-value.highlight {
    color: var(--color-electric-blue);
    text-shadow: 0 0 6px var(--color-electric-blue-glow);
}

/* System Visual Panel: Oscilloscope */
.system-visual-panel {
    background-color: var(--color-bg-card);
    border: var(--glass-border);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    margin-top: 2rem;
}

.oscilloscope {
    position: relative;
    width: 100%;
    height: 60px;
    background-color: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    margin-bottom: 1rem;
}

.scope-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 10px 10px;
}

.scope-wave {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.scope-wave path {
    fill: none;
    stroke: var(--color-electric-blue);
    stroke-width: 2;
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    animation: waveRun 2.5s linear infinite;
    filter: drop-shadow(0 0 5px var(--color-electric-blue));
}

@keyframes waveRun {
    to {
        stroke-dashoffset: 0;
    }
}

.security-key {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.key-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--color-text-dim);
}

.key-hash {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-neon-purple);
}

/* --- 10. SUCCESS MODAL --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-glass-container {
    width: 90%;
    max-width: 500px;
    background: rgba(9, 9, 18, 0.9);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 0 30px rgba(168, 85, 247, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-glass-container {
    transform: scale(1);
}

.modal-header {
    background: rgba(0, 0, 0, 0.4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1rem 1.5rem;
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.modal-dots {
    display: flex;
    gap: 6px;
}

.modal-dots .dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-success);
    border-radius: 50%;
    box-shadow: 0 0 5px var(--color-success);
    animation: statusPulse 1.2s ease-in-out infinite;
}

.modal-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
}

.modal-body {
    padding: 2.5rem 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Success animated icon */
.success-icon-animation {
    position: relative;
    width: 80px;
    height: 80px;
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.success-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 3px solid var(--color-success);
    color: var(--color-success);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
    box-shadow: 0 0 15px var(--color-success-glow);
    background-color: var(--color-bg-card);
}

.success-circle svg {
    width: 30px;
    height: 30px;
}

.success-waves .wave {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid var(--color-success);
    opacity: 0;
    z-index: 1;
    animation: wavePulse 2s ease-out infinite;
}

.success-waves .wave:nth-child(2) {
    animation-delay: 1s;
}

@keyframes wavePulse {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.5); opacity: 0; }
}

.success-title {
    font-family: var(--font-title);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-pure);
    margin-bottom: 0.5rem;
}

.success-msg {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 1.75rem;
}

/* Modal terminal message details */
.modal-terminal-box {
    background-color: #020205;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
    padding: 1rem;
    width: 100%;
    text-align: left;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.6;
    color: var(--color-text-dim);
}

.modal-terminal-box .terminal-line {
    margin-bottom: 4px;
}

.modal-terminal-box .terminal-line.indent {
    padding-left: 14px;
}

.modal-terminal-box .highlight {
    color: var(--color-electric-blue);
}

.modal-footer {
    padding: 1.25rem 2rem 2rem;
    display: flex;
    justify-content: center;
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

.modal-footer .btn {
    min-width: 160px;
}

/* --- 11. FOOTER --- */
#main-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    background-color: var(--color-bg-pure);
    padding: 2rem 0;
}

.footer-container {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

/* --- 12. RESPONSIVE DESIGN (MEDIA QUERIES) --- */

/* Tablet & Smaller Screens */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .packages-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
        gap: 2.5rem;
    }
    
    .package-card.popular {
        transform: scale(1);
    }
    
    .package-card.popular:hover {
        transform: translateY(-8px) scale(1);
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .contact-info-panel {
        order: -1; /* Muestra info de contacto arriba en móviles */
    }
}

/* Mobile Menu Overlay Styles */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    #navbar {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: rgba(3, 3, 7, 0.95);
        backdrop-filter: blur(15px);
        transition: left var(--transition-normal);
        z-index: 999;
        display: flex;
        justify-content: center;
        align-items: center;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    #navbar.open {
        left: 0;
    }
    
    #navbar ul {
        flex-direction: column;
        align-items: center;
        gap: 3rem;
    }
    
    .nav-link {
        font-size: 1.25rem;
    }
    
    /* Menu Toggle Active states */
    #menu-toggle.open .menu-bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    #menu-toggle.open .menu-bar:nth-child(2) {
        opacity: 0;
    }
    
    #menu-toggle.open .menu-bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    /* Hero adjustment */
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
        gap: 1rem;
    }
    
    .hero-metrics {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .cyber-form {
        padding: 1.75rem 1.5rem;
    }
    
    .header-controls {
        margin-right: 1.5rem;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.75rem;
    }
    
    .package-card {
        padding: 2rem 1.5rem;
    }
}

/* --- THEME TOGGLE BUTTON --- */
.theme-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius-sm);
    color: var(--color-text-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
    font-size: 1.05rem;
}

.theme-btn:hover {
    color: var(--color-text-pure);
    border-color: var(--color-neon-purple);
    box-shadow: 0 0 12px var(--color-neon-purple-glow);
    transform: translateY(-1px);
}

.theme-btn:active {
    transform: translateY(1px);
}

/* Theme toggle icons based on active theme */
.theme-btn .theme-icon-sun {
    display: none;
}
.theme-btn .theme-icon-moon {
    display: block;
}

:root[data-theme="light"] .theme-btn .theme-icon-sun {
    display: block;
}
:root[data-theme="light"] .theme-btn .theme-icon-moon {
    display: none;
}

/* --- LIGHT THEME COMPONENT ADJUSTMENTS --- */
:root[data-theme="light"] #packages {
    background-color: #f1f5f9;
}

:root[data-theme="light"] #main-header {
    background: rgba(248, 250, 252, 0.85);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

:root[data-theme="light"] #main-header.scrolled {
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(124, 58, 237, 0.25);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

:root[data-theme="light"] .theme-btn,
:root[data-theme="light"] .lang-btn {
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.08);
    color: var(--color-text-muted);
}

:root[data-theme="light"] .theme-btn:hover,
:root[data-theme="light"] .lang-btn:hover {
    color: var(--color-text-pure);
    border-color: var(--color-neon-purple);
    box-shadow: 0 0 12px var(--color-neon-purple-glow);
}

:root[data-theme="light"] .lang-dropdown {
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(124, 58, 237, 0.25);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1), 0 0 15px var(--color-neon-purple-glow);
}

:root[data-theme="light"] .lang-option:hover {
    background: rgba(124, 58, 237, 0.08);
}

:root[data-theme="light"] .package-card.popular {
    background-color: rgba(255, 255, 255, 0.9);
}

:root[data-theme="light"] .form-cyber-header {
    background: rgba(0, 0, 0, 0.02);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

:root[data-theme="light"] .loader-terminal-log {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

:root[data-theme="light"] .modal-glass-container {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(124, 58, 237, 0.3);
    box-shadow: 0 0 30px rgba(124, 58, 237, 0.15);
}

:root[data-theme="light"] .modal-header {
    background: rgba(0, 0, 0, 0.02);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

:root[data-theme="light"] .modal-terminal-box {
    background-color: #f8fafc;
    border: 1px solid rgba(0, 0, 0, 0.05);
    color: var(--color-text-muted);
}

:root[data-theme="light"] .modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.02);
}

:root[data-theme="light"] .success-circle {
    background-color: #ffffff;
}

:root[data-theme="light"] .btn-secondary {
    background: rgba(0, 0, 0, 0.01);
    color: var(--color-text-light);
    border: 1px solid rgba(0, 0, 0, 0.12);
}

:root[data-theme="light"] .btn-secondary:hover {
    background: rgba(0, 0, 0, 0.04);
    border-color: var(--color-electric-blue);
    color: var(--color-text-pure);
}

:root[data-theme="light"] #main-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

:root[data-theme="light"] .system-channels li {
    background: rgba(15, 23, 42, 0.03);
    border: 1px solid rgba(15, 23, 42, 0.08);
}

:root[data-theme="light"] .system-visual-panel {
    border: 1px solid rgba(15, 23, 42, 0.08);
}

:root[data-theme="light"] .contact-glass-card {
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.04);
}

:root[data-theme="light"] ::-webkit-scrollbar-track {
    background: var(--color-bg-pure);
}

:root[data-theme="light"] ::-webkit-scrollbar-thumb {
    background: #e2e8f0;
    border: 2px solid var(--color-bg-pure);
}

:root[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
    background: var(--color-neon-purple);
    box-shadow: 0 0 10px var(--color-neon-purple-glow);
}

@media (max-width: 768px) {
    :root[data-theme="light"] #navbar {
        background-color: rgba(248, 250, 252, 0.98);
        border-top: 1px solid rgba(0, 0, 0, 0.05);
    }
}

/* ==========================================================================
   ABOUT & MUSEUM SECTIONS ADDITIONS
   ========================================================================== */

/* --- 1. ABOUT SECTION STYLE --- */
#about {
    background-color: var(--color-bg-deep);
}

.about-wrapper {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 3rem;
    align-items: center;
}

.about-avatar-card {
    background-color: var(--color-bg-card);
    border: var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.about-avatar-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius-lg);
    padding: 1px;
    background: linear-gradient(180deg, rgba(6, 182, 212, 0.3), transparent 60%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 3;
}

.about-avatar-card:hover {
    transform: translateY(-5px);
    background-color: var(--color-bg-card-hover);
    border-color: rgba(6, 182, 212, 0.4);
    box-shadow: 0 10px 25px var(--color-electric-blue-glow);
}

.avatar-inner {
    text-align: center;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.avatar-img {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(6, 182, 212, 0.25);
    box-shadow: 0 0 20px var(--color-electric-blue-glow);
    margin-bottom: 1.5rem;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.about-avatar-card:hover .avatar-img {
    transform: scale(1.05);
    border-color: var(--color-electric-blue);
    box-shadow: 0 0 25px var(--color-electric-blue);
}

.avatar-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.avatar-name {
    font-family: var(--font-title);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--color-text-pure);
}

.avatar-role {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-neon-purple);
    letter-spacing: 0.1em;
}

.about-text-card {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about-paragraph {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--color-text-light);
    text-align: justify;
}

/* --- 2. MUSEUM SECTION STYLE --- */
#museum {
    background-color: #040409;
    position: relative;
}

.museum-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 8px 18px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    color: var(--color-text-pure);
    border-color: var(--color-neon-purple);
    box-shadow: 0 0 10px var(--color-neon-purple-glow);
}

.filter-btn.active {
    color: #ffffff;
    background: linear-gradient(135deg, var(--color-neon-purple), #7c3aed);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 15px var(--color-neon-purple-glow);
}

.museum-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
}

.museum-card {
    background-color: var(--color-bg-card);
    border: var(--glass-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.museum-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius-lg);
    padding: 1px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 50%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 3;
}

.museum-card:hover {
    transform: translateY(-6px);
    border-color: rgba(6, 182, 212, 0.4);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5), 0 0 20px var(--color-electric-blue-glow);
}

.museum-image-wrapper {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, #090912 0%, #030307 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    cursor: pointer;
}

.museum-project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
    z-index: 1;
}

.museum-card:hover .museum-project-img {
    transform: scale(1.05);
}

.museum-image-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(6, 182, 212, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(6, 182, 212, 0.04) 1px, transparent 1px);
    background-size: 20px 20px;
    pointer-events: none;
}

.museum-scan-line {
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-electric-blue), transparent);
    opacity: 0;
    pointer-events: none;
    box-shadow: 0 0 8px var(--color-electric-blue);
    z-index: 2;
}

.museum-card:hover .museum-scan-line {
    animation: cardScan 2s linear infinite;
    opacity: 0.8;
}

@keyframes cardScan {
    0% { top: -5%; }
    100% { top: 105%; }
}

.museum-placeholder-text {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-dim);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 1;
    transition: color var(--transition-fast);
}

.museum-card:hover .museum-placeholder-text {
    color: var(--color-electric-blue);
}

.museum-tech-icon {
    font-size: 1.5rem;
    animation: flashIcon 1.5s steps(2, start) infinite;
}

.museum-content {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex-grow: 1;
}

.museum-info-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.museum-exhibit-no {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--color-neon-purple);
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.2);
    padding: 2px 8px;
    border-radius: 4px;
}

.museum-project-title {
    font-family: var(--font-title);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-pure);
}

.museum-project-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    flex-grow: 1;
}

.museum-inspect-btn {
    margin-top: 1rem;
    align-self: flex-start;
}

/* --- 3. MUSEUM MODAL VISOR STYLE --- */
.museum-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.museum-modal.active {
    opacity: 1;
    visibility: visible;
}

.museum-modal-container {
    width: 90%;
    max-width: 650px;
    background: rgba(9, 9, 18, 0.95);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 0 30px rgba(6, 182, 212, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.museum-modal.active .museum-modal-container {
    transform: scale(1);
}

.museum-modal-header {
    background: rgba(0, 0, 0, 0.4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.museum-modal-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
}

.museum-modal-body {
    padding: 2rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.museum-modal-image-wrapper {
    width: 100%;
    height: 380px;
    background: linear-gradient(135deg, #090912 0%, #030307 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.museum-modal-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

.museum-modal-image-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
    background-size: 15px 15px;
}

.museum-modal-content h3 {
    font-family: var(--font-title);
    font-size: 1.5rem;
    color: var(--color-text-pure);
    margin-bottom: 0.75rem;
}

.museum-modal-detail {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.museum-modal-metadata {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1.25rem;
}

.meta-item {
    display: flex;
    flex-direction: column;
}

.meta-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-dim);
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.meta-value {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.4;
}

.meta-value.highlight {
    color: var(--color-electric-blue);
    font-family: var(--font-mono);
}

.museum-modal-footer {
    padding: 1.25rem 2rem 2rem;
    display: flex;
    justify-content: center;
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

.museum-modal-footer .btn {
    min-width: 180px;
}

/* --- 4. LIGHT THEME COMPONENT ADJUSTMENTS --- */
:root[data-theme="light"] #museum {
    background-color: #f8fafc;
}

:root[data-theme="light"] .about-avatar-card {
    background-color: #ffffff;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

:root[data-theme="light"] .about-avatar-card::before {
    background: linear-gradient(180deg, rgba(124, 58, 237, 0.15), transparent 60%);
}

:root[data-theme="light"] .museum-card {
    background-color: #ffffff;
}

:root[data-theme="light"] .museum-card:hover {
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08), 0 0 20px var(--color-electric-blue-glow);
}

:root[data-theme="light"] .museum-image-wrapper {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

:root[data-theme="light"] .museum-modal-container {
    background: #ffffff;
    border-color: rgba(124, 58, 237, 0.3);
    box-shadow: 0 0 30px rgba(124, 58, 237, 0.15);
}

:root[data-theme="light"] .museum-modal-image-wrapper {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

/* --- 5. RESPONSIVE DESIGN ADJUSTMENTS --- */
@media (max-width: 1024px) {
    .about-wrapper {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: center;
    }
    
    .about-avatar-card {
        max-width: 360px;
        margin: 0 auto;
    }
    
    .about-paragraph {
        text-align: left;
    }
    
    .museum-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    :root[data-theme="light"] #navbar {
        background-color: rgba(248, 250, 252, 0.98);
        border-top: 1px solid rgba(0, 0, 0, 0.05);
    }
}

/* --- 13. ARCADE SECTION STYLE --- */
#arcade {
    background-color: var(--color-bg-deep);
}

.arcade-container {
    width: 100%;
    max-width: 950px;
    margin: 0 auto;
    background: var(--glass-background);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: var(--glass-border);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    overflow: hidden;
    position: relative;
    border-top: 1.5px solid rgba(168, 85, 247, 0.3);
}

.arcade-controls {
    display: flex;
    background: rgba(0, 0, 0, 0.4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0 1rem;
}

.arcade-tab-btn {
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--color-text-dim);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 1.25rem 2rem;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all var(--transition-fast);
}

.arcade-tab-btn:hover {
    color: var(--color-text-pure);
}

.arcade-tab-btn.active {
    color: var(--color-electric-blue);
    border-bottom-color: var(--color-electric-blue);
    text-shadow: 0 0 8px var(--color-electric-blue-glow);
}

.arcade-screen {
    padding: 2.5rem;
}

.game-wrapper {
    display: none;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    align-items: center;
}

.game-wrapper.active {
    display: grid;
    animation: fadeIn 0.3s ease-out forwards;
}

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

.game-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.game-sidebar h3 {
    font-family: var(--font-title);
    font-size: 1.5rem;
    color: var(--color-text-pure);
    letter-spacing: 0.1em;
    background: linear-gradient(90deg, var(--color-text-pure), var(--color-electric-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.game-sidebar p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.game-score-board {
    display: flex;
    gap: 1rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    padding: 1rem;
}

.score-item {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.score-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--color-text-dim);
    letter-spacing: 0.05em;
}

.score-value {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-electric-blue);
    text-shadow: 0 0 8px var(--color-electric-blue-glow);
}

.game-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.canvas-container {
    position: relative;
    border: 2px solid var(--color-bg-pure);
    border-radius: var(--border-radius-md);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.6), 0 0 10px rgba(6, 182, 212, 0.1);
    background: #020205;
    width: 320px;
    height: 320px;
    overflow: hidden;
}

#snake-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.game-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(3, 3, 7, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    backdrop-filter: blur(4px);
    transition: opacity 0.3s ease;
}

.game-overlay.hidden {
    display: none;
    opacity: 0;
}

.overlay-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
}

.overlay-content h2 {
    font-family: var(--font-title);
    font-size: 1.5rem;
    color: var(--color-error);
    text-shadow: 0 0 10px var(--color-error-glow);
}

.overlay-content p {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-dim);
}

/* Mobile & touch controls overlay for Snake */
.mobile-game-controls {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    margin-top: 1.5rem;
}

.ctrl-btn {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-pure);
    font-size: 1.1rem;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    touch-action: manipulation;
}

.ctrl-btn:active {
    background: var(--color-electric-blue);
    border-color: var(--color-electric-blue);
    box-shadow: 0 0 15px var(--color-electric-blue);
    transform: scale(0.9);
}

.ctrl-row {
    display: flex;
    gap: 32px;
}

/* Memory Match Styles */
.memory-grid-container {
    width: 320px;
    height: 320px;
    position: relative;
}

.memory-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(4, 1fr);
    gap: 8px;
    width: 100%;
    height: 100%;
}

.memory-card-tile {
    background-color: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), border-color var(--transition-fast);
}

.memory-card-tile:hover {
    border-color: var(--color-neon-purple);
    box-shadow: 0 0 8px var(--color-neon-purple-glow);
}

.memory-card-tile.flipped {
    transform: rotateY(180deg);
}

.memory-card-tile.matched {
    border-color: var(--color-success);
    box-shadow: 0 0 10px var(--color-success-glow);
    pointer-events: none;
    transform: rotateY(180deg);
}

.card-face {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: inherit;
}

.card-back {
    background: radial-gradient(circle, rgba(168, 85, 247, 0.15) 0%, transparent 80%), var(--color-bg-card);
    color: var(--color-neon-purple);
    font-size: 1.25rem;
    font-weight: bold;
    font-family: var(--font-mono);
}

.card-front {
    background: #020205;
    color: var(--color-text-pure);
    transform: rotateY(180deg);
    font-size: 1.5rem;
}

/* Responsive arcade styles */
@media (max-width: 768px) {
    .game-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .game-sidebar {
        align-items: center;
        text-align: center;
    }
    
    .mobile-game-controls {
        display: flex;
    }
    
    .canvas-container, .memory-grid-container {
        width: 290px;
        height: 290px;
    }
}

:root[data-theme="light"] .arcade-container {
    background-color: var(--color-bg-card);
    border-color: var(--glass-border);
}

:root[data-theme="light"] .arcade-controls {
    background: rgba(0, 0, 0, 0.03);
}

:root[data-theme="light"] .game-score-board {
    background: rgba(255, 255, 255, 0.8);
}