/* Variables CSS para temas */
:root {
    /* Tema Claro */
    --bg-primary-light: #ffffff;
    --bg-secondary-light: #f8f9fa;
    --text-primary-light: #212529;
    --text-secondary-light: #6c757d;
    --accent-light: #007bff;
    --accent-hover-light: #0056b3;
    --border-light: #dee2e6;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --overlay-light: rgba(0, 0, 0, 0.5);
    
    /* Tema Oscuro */
    --bg-primary-dark: #1a1a1a;
    --bg-secondary-dark: #2d2d2d;
    --text-primary-dark: #ffffff;
    --text-secondary-dark: #b0b0b0;
    --accent-dark: #4dabf7;
    --accent-hover-dark: #339af0;
    --border-dark: #404040;
    --shadow-dark: rgba(0, 0, 0, 0.3);
    --overlay-dark: rgba(0, 0, 0, 0.7);
    
    /* Tema Oscuro Multicolor Metálico (mc-) */
    /* Fondo oscuro multicolor animado con colores metálicos */
    --mc-background-grad: 45deg;  /* ángulo de gradiente configurable */
    --bg-primary-mc: linear-gradient(var(--mc-background-grad), 
        #1a001a 0%,    /* violeta oscuro (#1a001a) */
        #2d1414 25%,   /* marrón oscuro (#2d1414) */
        #0a0a2a 50%,   /* azul oscuro (#0a0a2a) */
        #0a1a2a 75%,   /* azul celeste oscuro (#0a1a2a) */
        #1a001a 100%   /* violeta oscuro (#1a001a) */
    );
    --bg-secondary-mc: #000000;  /* negro (#000000) para tarjetas */
    --text-primary-mc: #ffffff;  /* blanco (#ffffff) */
    --text-secondary-mc: #e0e0e0; /* gris claro (#e0e0e0) */
    
    /* Nuevos estilos de texto */
    --mc-text-cyan: #00ffff;     /* cian brillante (#00ffff) */
    --mc-text-menu: #f0f0f0;     /* texto del menú claro (#f0f0f0) */
    
    /* Fondo de menú superior */
    --mc-menu-bg: rgba(10, 10, 42, 0.8);  /* azul oscuro semitransparente (#0a0a2a con opacidad) */
    
    /* Títulos multicolor claros */
    --accent-mc-1: #4fc3f7;   /* celeste (#4fc3f7) */
    --accent-mc-2: #cddc39;   /* lima (#cddc39) */
    --accent-mc-3: #ffeb3b;   /* amarillo (#ffeb3b) */
    --accent-mc-4: #81d4fa;   /* azul claro (#81d4fa) */
    --accent-mc-5: #ff6ec7;   /* rosa neón (#ff6ec7) */
    --accent-mc-6: #00ff9f;   /* verde neón (#00ff9f) */
    --accent-mc-7: #ff4081;   /* rosa vibrante (#ff4081) */
    --accent-mc-8: #64ffda;   /* turquesa neón (#64ffda) */
    --accent-mc-9: #ffc107;   /* ámbar (#ffc107) */
    --accent-mc-10: #9c27b0;  /* púrpura (#9c27b0) */
    
    /* Botones multicolor metálicos */
    --accent-mc-gold: #daa520;     /* goldenrod (#daa520) */
    --accent-mc-brown: #8b4513;    /* marrón (#8b4513) */
    --accent-mc-violet: #9400d3;   /* violeta (#9400d3) */
    --accent-mc-neon-green: #39ff14; /* verde neón (#39ff14) */
    --accent-mc-neon-blue: #00bfff;  /* azul neón (#00bfff) */
    --accent-mc-neon-pink: #ff1493;  /* rosa neón (#ff1493) */
    --accent-mc-cyber-orange: #ff7f00; /* naranja cyber (#ff7f00) */
    --accent-mc-electric-purple: #bf00ff; /* púrpura eléctrico (#bf00ff) */
    
    --accent-hover-mc-gold: #f0c14b;   /* goldenrod claro (#f0c14b) */
    --accent-hover-mc-brown: #a0522d;  /* marrón claro (#a0522d) */
    --accent-hover-mc-violet: #ba55d3; /* violeta claro (#ba55d3) */
    --accent-hover-mc-neon-green: #7fff00; /* verde neón claro (#7fff00) */
    --accent-hover-mc-neon-blue: #87ceeb;  /* azul neón claro (#87ceeb) */
    --accent-hover-mc-neon-pink: #ff69b4;  /* rosa neón claro (#ff69b4) */
    --accent-hover-mc-cyber-orange: #ffa500; /* naranja cyber claro (#ffa500) */
    --accent-hover-mc-electric-purple: #da70d6; /* púrpura eléctrico claro (#da70d6) */
    
    --border-mc: rgba(255, 255, 255, 0.3); /* blanco semitransparente */
    --shadow-mc: rgba(0, 0, 0, 0.5);
    --overlay-mc: rgba(0, 0, 0, 0.8);
    
    /* Variables de configuración */
    --sidebar-width: 280px;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --box-shadow: 0 4px 6px -1px var(--shadow);

    /* Header */
    --header-height: 70px;
    --header-offset: 0px;
    --header-padding-x: 20px;
    --header-gap-left: 15px;
    --header-gap-nav: 20px;

    /* Footer */
    --footer-vertical-padding: 20px;
    --footer-horizontal-padding: 20px;
    --footer-gap: 15px;
    --footer-min-height: 80px;
    
    /* Variables de espaciado global */
    --section-margin: 0 auto;
    --section-max-width: 1200px;
    --content-gap: 30px;
    --space-section-y: 35px;
    --space-section-x: 20px;
    --space-title-bottom: 20px;
    --space-element-y: 20px;
    --space-cta-top: 30px;
    
    /* Variables scard- para tarjetas con overlay deslizante */
    --scard-card-height: 320px;
    --scard-overlay-height: 55%;
    --scard-overlay-max-height: 70%;
    --scard-overlay-min-height: 55%; /* Minimum height for overlay */
    --scard-border-radius: 20px;
    --scard-overlay-border-radius: 16px;
    
    /* Efectos 3D y sombras para scard */
    --scard-card-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    --scard-card-shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.2);
    --scard-card-transform-hover: translateY(-8px) rotateX(2deg);
    --scard-card-3d-intensity: 8px; /* Configurable 3D effect intensity */
    --scard-card-3d-rotation: 2deg; /* Configurable 3D rotation */
    
    /* Colores para scard */
    --scard-primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --scard-card-bg: var(--bg-secondary);
    --scard-card-bg-light: rgba(255, 255, 255, 1); /* Default white for light theme */
    --scard-card-bg-light-1: rgba(240, 248, 255, 1); /* Pastel light blue */
    --scard-card-bg-light-2: rgba(245, 245, 220, 1); /* Pastel light beige */
    --scard-card-bg-light-3: rgba(240, 255, 240, 1); /* Pastel light green */
    --scard-card-bg-light-4: rgba(255, 240, 245, 1); /* Pastel light pink */
    --scard-overlay-bg: rgba(255, 255, 255, 0.95);
    --scard-overlay-bg-light: rgba(240, 248, 255, 0.95); /* Pastel light blue */
    --scard-overlay-bg-light-1: rgba(220, 238, 250, 0.95); /* Slightly darker pastel blue */
    --scard-overlay-bg-light-2: rgba(235, 235, 210, 0.95); /* Slightly darker pastel beige */
    --scard-overlay-bg-light-3: rgba(220, 245, 220, 0.95); /* Slightly darker pastel green */
    --scard-overlay-bg-light-4: rgba(245, 220, 235, 0.95); /* Slightly darker pastel pink */
    --scard-overlay-backdrop: none; /* Eliminado blur para textos nítidos */
    
    /* Iconos para scard */
    --scard-main-icon-size: 64px;
    --scard-overlay-icon-size: 24px;
    --scard-main-icon-bg: var(--scard-primary-gradient);
    --scard-overlay-icon-bg: rgba(102, 126, 234, 0.1);
    
    /* Títulos para scard */
    --scard-title-icon-size: 24px;
    --scard-title-font-size: 1.2rem;
    --scard-title-line-height: 1.2;
    --scard-title-gap: 2px;
    
    /* Icono de título opcional */
    --scard-title-icon-bg: transparent;
    --scard-title-icon-radius: 4px;
    
    /* Icono de título opcional */
    --scard-title-icon-bg: transparent;
    --scard-title-icon-radius: 4px;
    
    /* Tipografía para scard */
    --scard-text-primary: var(--text-primary);
    --scard-text-secondary: var(--text-secondary);
    --scard-text-overlay: #333333;
    
    /* Scrollbar para scard */
    --scard-scrollbar-width: 4px;
    --scard-scrollbar-track: rgba(0, 0, 0, 0.05);
    --scard-scrollbar-thumb: rgba(0, 0, 0, 0.2);
    --scard-scrollbar-thumb-hover: rgba(0, 0, 0, 0.4);
    
    /* Transiciones para scard */
    --scard-transition-main: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --scard-transition-overlay: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    
    /* Variables dinámicas iniciales (tema claro) */
    --bg-primary: var(--bg-primary-light);
    --bg-secondary: var(--bg-secondary-light);
    --text-primary: var(--text-primary-light);
    --text-secondary: var(--text-secondary-light);
    --accent: var(--accent-light);
    --accent-hover: var(--accent-hover-light);
    --border: var(--border-light);
    --shadow: var(--shadow-light);
    --overlay: var(--overlay-light);
}

/* Tema oscuro */
[data-theme="dark"] {
    --bg-primary: var(--bg-primary-dark);
    --bg-secondary: var(--bg-secondary-dark);
    --text-primary: var(--text-primary-dark);
    --text-secondary: var(--text-secondary-dark);
    --accent: var(--accent-dark);
    --accent-hover: var(--accent-hover-dark);
    --border: var(--border-dark);
    --shadow: var(--shadow-dark);
    --overlay: var(--overlay-dark);
}

/* Tema Oscuro Multicolor Metálico */
[data-theme="mc"] {
    --bg-primary: var(--bg-primary-mc);
    --bg-secondary: var(--bg-secondary-mc);
    --text-primary: var(--text-primary-mc);
    --text-secondary: var(--text-secondary-mc);
    --accent: var(--accent-mc-1); /* Valor inicial, se animará */
    --accent-hover: var(--accent-mc-2); /* Valor inicial, se animará */
    --border: var(--border-mc);
    --shadow: var(--shadow-mc);
    --overlay: var(--overlay-mc);
}

/* Asegurar que todos los textos sean nítidos y sin desenfoque */
[data-theme="mc"] h1,
[data-theme="mc"] h2,
[data-theme="mc"] h3,
[data-theme="mc"] h4,
[data-theme="mc"] h5,
[data-theme="mc"] h6,
[data-theme="mc"] p,
[data-theme="mc"] span,
[data-theme="mc"] a,
[data-theme="mc"] div,
[data-theme="mc"] .section h2,
[data-theme="mc"] .card h3,
[data-theme="mc"] .scard-card-title {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    filter: none !important;
    backdrop-filter: none !important;
}

/* Estilos para tarjetas con overlay deslizante scard */
.scard-card {
    height: var(--scard-card-height);
    background: var(--scard-card-bg-light);
    border-radius: var(--scard-border-radius);
    box-shadow: var(--scard-card-shadow);
    overflow: hidden;
    position: relative;
    transition: var(--scard-transition-main);
    transform-style: preserve-3d;
    cursor: pointer;
}

.scard-card:hover {
    transform: translateY(calc(var(--scard-card-3d-intensity) * -1)) rotateX(var(--scard-card-3d-rotation)) translateZ(10px);
    box-shadow: var(--scard-card-shadow-hover);
}

/* Card background for dark theme */
[data-theme="dark"] .scard-card {
    background: var(--scard-card-bg);
}

/* Card background for multicolor theme */
[data-theme="mc"] .scard-card {
    background: var(--scard-card-bg);
}

.scard-card-main {
    height: 100%;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    position: relative;
    z-index: 1;
}

.scard-card-icon {
    width: var(--scard-main-icon-size);
    height: var(--scard-main-icon-size);
    background: var(--scard-main-icon-bg);
    border-radius: calc(var(--scard-border-radius) * 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: var(--scard-transition-main);
}

.scard-card:hover .scard-card-icon {
    transform: rotateY(5deg);
    color: var(--accent-mc-2);
}

.scard-card-header {
    display: flex;
    align-items: flex-start;
    gap: var(--scard-title-gap);
    margin-bottom: 0.1rem;
}

.scard-card-icon {
    width: var(--scard-title-icon-size);
    height: var(--scard-title-icon-size);
    background: var(--scard-title-icon-bg);
    border-radius: var(--scard-title-icon-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: calc(var(--scard-title-icon-size) * 0.7);
    flex-shrink: 0;
    line-height: 1;
    padding-top: 1px;
}

.scard-card-title {
    font-size: var(--scard-title-font-size);
    font-weight: 700;
    color: var(--scard-text-primary);
    line-height: 1.2;
    margin: 0;
    padding-top: 1px;
}

/* Font Awesome icon in title (optional) */
.scard-card-title-icon {
    font-size: var(--scard-title-icon-size);
    width: var(--scard-title-icon-size);
    height: var(--scard-title-icon-size);
    background: var(--scard-title-icon-bg);
    border-radius: var(--scard-title-icon-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--scard-title-gap);
}

.scard-card-subtitle {
    color: var(--scard-text-secondary);
    font-size: 0.7rem;
    line-height: 1.2;
    flex-grow: 1;
}

.scard-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    min-height: var(--scard-overlay-min-height);
    height: var(--scard-overlay-height);
    max-height: var(--scard-overlay-max-height);
    background: var(--scard-overlay-bg-light);
    backdrop-filter: var(--scard-overlay-backdrop);
    -webkit-backdrop-filter: var(--scard-overlay-backdrop);
    border-radius: var(--scard-overlay-border-radius) var(--scard-overlay-border-radius) 0 0;
    transform: translateY(100%);
    transition: var(--scard-transition-overlay);
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    z-index: 2;
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.1);
}

/* Overlay background for dark theme */
[data-theme="dark"] .scard-card-overlay {
    background: var(--scard-overlay-bg);
}

/* Overlay background for multicolor theme */
[data-theme="mc"] .scard-card-overlay {
    background: var(--scard-overlay-bg);
}

.scard-card:hover .scard-card-overlay,
.scard-card.active .scard-card-overlay {
    transform: translateY(0);
}

.scard-overlay-header {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.scard-overlay-icon {
    width: var(--scard-overlay-icon-size);
    height: var(--scard-overlay-icon-size);
    background: var(--scard-overlay-icon-bg);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: #667eea;
    flex-shrink: 0;
    line-height: 1;
    padding-top: 2px;
}

.scard-overlay-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--scard-text-overlay);
    line-height: 1.2;
    margin: 0;
    padding-top: 1px;
}

.scard-overlay-content {
    flex-grow: 1;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--scard-scrollbar-thumb) var(--scard-scrollbar-track);
    padding-right: 0.25rem;
}

/* Custom scrollbar for Webkit browsers */
.scard-overlay-content::-webkit-scrollbar {
    width: var(--scard-scrollbar-width);
}

.scard-overlay-content::-webkit-scrollbar-track {
    background: var(--scard-scrollbar-track);
    border-radius: 10px;
}

.scard-overlay-content::-webkit-scrollbar-thumb {
    background: var(--scard-scrollbar-thumb);
    border-radius: 10px;
}

.scard-overlay-content::-webkit-scrollbar-thumb:hover {
    background: var(--scard-scrollbar-thumb-hover);
}

.scard-feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
    color: var(--scard-text-overlay);
    opacity: 0;
    transform: translateX(-10px);
}

.scard-card:hover .scard-feature-item,
.scard-card.active .scard-feature-item { 
    animation: scardSlideInLeft 0.3s ease-out forwards; 
}

.scard-card:hover .scard-feature-item:nth-child(1),
.scard-card.active .scard-feature-item:nth-child(1) { 
    animation: scardSlideInLeft 0.3s ease-out 0.1s forwards; 
}

.scard-card:hover .scard-feature-item:nth-child(2),
.scard-card.active .scard-feature-item:nth-child(2) { 
    animation: scardSlideInLeft 0.3s ease-out 0.15s forwards; 
}

.scard-card:hover .scard-feature-item:nth-child(3),
.scard-card.active .scard-feature-item:nth-child(3) { 
    animation: scardSlideInLeft 0.3s ease-out 0.2s forwards; 
}

.scard-card:hover .scard-feature-item:nth-child(4),
.scard-card.active .scard-feature-item:nth-child(4) { 
    animation: scardSlideInLeft 0.3s ease-out 0.25s forwards; 
}

.scard-card:hover .scard-feature-item:nth-child(5),
.scard-card.active .scard-feature-item:nth-child(5) { 
    animation: scardSlideInLeft 0.3s ease-out 0.3s forwards; 
}

.scard-card:hover .scard-feature-item:nth-child(6),
.scard-card.active .scard-feature-item:nth-child(6) { 
    animation: scardSlideInLeft 0.3s ease-out 0.35s forwards; 
}

.scard-card:hover .scard-feature-item:nth-child(7),
.scard-card.active .scard-feature-item:nth-child(7) { 
    animation: scardSlideInLeft 0.3s ease-out 0.4s forwards; 
}

.scard-card:hover .scard-feature-item:nth-child(8),
.scard-card.active .scard-feature-item:nth-child(8) { 
    animation: scardSlideInLeft 0.3s ease-out 0.45s forwards; 
}

.scard-card:hover .scard-feature-item:nth-child(9),
.scard-card.active .scard-feature-item:nth-child(9) { 
    animation: scardSlideInLeft 0.3s ease-out 0.5s forwards; 
}

.scard-card:hover .scard-feature-item:nth-child(10),
.scard-card.active .scard-feature-item:nth-child(10) { 
    animation: scardSlideInLeft 0.3s ease-out 0.55s forwards; 
}

.scard-feature-icon {
    font-size: 0.75rem;
    margin-right: 0.5rem;
    opacity: 0.8;
}

.scard-overlay-actions {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
}

.scard-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--scard-transition-overlay);
    text-decoration: none;
    display: inline-block;
    text-align: center;
    opacity: 0;
    transform: translateY(10px);
}

.scard-card:hover .scard-btn,
.scard-card.active .scard-btn {
    opacity: 1;
    transform: translateY(0);
    animation: scardFadeInUp 0.3s ease-out 0.4s forwards;
}

.scard-btn-primary {
    background: #667eea;
    color: white;
}

.scard-btn-primary:hover {
    background: #5a6fd8;
    transform: translateY(-1px);
}

.scard-btn-secondary {
    background: rgba(0, 0, 0, 0.05);
    color: var(--scard-text-overlay);
}

.scard-btn-secondary:hover {
    background: rgba(0, 0, 0, 0.1);
}

/* Variaciones de color para las tarjetas scard */
.scard-card:nth-child(1) .scard-card-icon { background: linear-gradient(135deg, #ff6b6b, #ee5a52); }
.scard-card:nth-child(2) .scard-card-icon { background: linear-gradient(135deg, #4ecdc4, #44a08d); }
.scard-card:nth-child(3) .scard-card-icon { background: linear-gradient(135deg, #feca57, #ff9ff3); }
.scard-card:nth-child(4) .scard-card-icon { background: linear-gradient(135deg, #a8e6cf, #88d8a3); }
.scard-card:nth-child(5) .scard-card-icon { background: linear-gradient(135deg, #fa709a, #fee140); }
.scard-card:nth-child(6) .scard-card-icon { background: linear-gradient(135deg, #667eea, #764ba2); }

/* Animaciones para scard */
@keyframes scardSlideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scardFadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mejoras para dispositivos táctiles para scard */
@media (hover: none) and (pointer: coarse) {
    .scard-card-overlay {
        transform: translateY(85%);
    }
    
    .scard-card:active .scard-card-overlay,
    .scard-card.active .scard-card-overlay {
        transform: translateY(0);
    }
    
    .scard-overlay-header {
        cursor: pointer;
    }
}

/* Tema oscuro para scard */
[data-theme="dark"] .scard-card {
    --scard-card-bg: var(--bg-secondary-dark);
    --scard-overlay-bg: rgba(26, 26, 46, 0.95);
    --scard-text-primary: #ffffff;
    --scard-text-secondary: #a0a0a0;
    --scard-text-overlay: #e0e0e0;
    --scard-card-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Tema multicolor para scard */
[data-theme="mc"] .scard-card {
    --scard-card-bg: var(--bg-secondary-mc);
    --scard-overlay-bg: rgba(26, 26, 46, 0.95);
    --scard-text-primary: #ffffff;
    --scard-text-secondary: #e0e0e0;
    --scard-text-overlay: #e0e0e0;
    --scard-card-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Estilos para scrollbar en tema oscuro */
[data-theme="dark"] .scard-overlay-content {
    --scard-scrollbar-track: rgba(255, 255, 255, 0.05);
    --scard-scrollbar-thumb: rgba(255, 255, 255, 0.2);
    --scard-scrollbar-thumb-hover: rgba(255, 255, 255, 0.4);
}

/* Estilos para scrollbar en tema multicolor */
[data-theme="mc"] .scard-overlay-content {
    --scard-scrollbar-track: rgba(255, 255, 255, 0.05);
    --scard-scrollbar-thumb: rgba(255, 255, 255, 0.2);
    --scard-scrollbar-thumb-hover: rgba(255, 255, 255, 0.4);
}

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

body {
    font-family: 'TikTok sans','Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background: var(--bg-primary);
    background-size: 400% 400%;
    color: var(--text-primary);
    transition: var(--transition);
    padding-top: 70px; /* Fixed value to prevent layout shifts */
    animation: gradientShift 15s ease infinite;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Animación para el fondo multicolor */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Animación suavizada para gradientes */
@keyframes smoothGradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Animación para títulos multicolor */
@keyframes titleColorShift {
    0% { color: var(--accent-mc-1); }   /* celeste */
    25% { color: var(--accent-mc-2); }  /* lima */
    50% { color: var(--accent-mc-3); }  /* amarillo */
    75% { color: var(--accent-mc-4); }  /* azul claro */
    100% { color: var(--accent-mc-1); } /* celeste */
}

/* Estilos de texto personalizados para tema multicolor */
.mc-text-cyan {
    color: var(--mc-text-cyan) !important;
}

.mc-text-menu {
    color: var(--mc-text-menu) !important;
}

/* Nuevos estilos de texto que resaltan sobre fondo oscuro */
.mc-text-neon-green {
    color: var(--accent-mc-neon-green) !important;
    text-shadow: 0 0 2px var(--accent-mc-neon-green);
    font-weight: bold;
}

.mc-text-neon-blue {
    color: var(--accent-mc-neon-blue) !important;
    text-shadow: 0 0 2px var(--accent-mc-neon-blue);
    font-weight: bold;
}

.mc-text-neon-pink {
    color: var(--accent-mc-neon-pink) !important;
    text-shadow: 0 0 2px var(--accent-mc-neon-pink);
    font-weight: bold;
}

.mc-text-cyber-orange {
    color: var(--accent-mc-cyber-orange) !important;
    text-shadow: 0 0 2px var(--accent-mc-cyber-orange);
    font-weight: bold;
}

.mc-text-electric-purple {
    color: var(--accent-mc-electric-purple) !important;
    text-shadow: 0 0 2px var(--accent-mc-electric-purple);
    font-weight: bold;
}

.mc-text-bright-cyan {
    color: var(--accent-mc-8) !important;
    text-shadow: 0 0 1px var(--accent-mc-8);
}

.mc-text-bright-lime {
    color: var(--accent-mc-2) !important;
    text-shadow: 0 0 1px var(--accent-mc-2);
}

.mc-text-bright-amber {
    color: var(--accent-mc-9) !important;
    text-shadow: 0 0 1px var(--accent-mc-9);
}

/* Texto con gradiente multicolor */
.mc-text-gradient {
    background: linear-gradient(45deg, 
        var(--accent-mc-5), 
        var(--accent-mc-6), 
        var(--accent-mc-7), 
        var(--accent-mc-8));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: bold;
    /* Asegurar texto nítido */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Texto con gradiente arcoíris */
.mc-text-rainbow {
    background: linear-gradient(45deg, 
        #ff0000, #ff8000, #ffff00, #00ff00, 
        #0080ff, #8000ff, #ff0080);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 100%;
    animation: rainbow-text 3s ease-in-out infinite;
    font-weight: bold;
    /* Asegurar texto nítido */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

@keyframes rainbow-text {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Estilo para el menú superior en tema multicolor */
[data-theme="mc"] .header {
    background-color: var(--mc-menu-bg) !important;
}

/* Estilo para el texto del menú */
[data-theme="mc"] .nav-item,
[data-theme="mc"] .logo span {
    color: var(--mc-text-menu) !important;
}

/* Header */
.header {
    position: fixed;
    top: 0px; /* Fixed value instead of CSS variable */
    left: 0;
    right: 0;
    height: 70px; /* Fixed value instead of CSS variable */
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 0 20px; /* Fixed value instead of CSS variable */
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1000;
    transition: var(--transition);
    /* Ensure header doesn't affect document flow */
    margin: 0;
}

/* Header multicolor para tema mc */
[data-theme="mc"] .header {
    background-color: rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
    max-width: 100vw; /* Evitar que el header cause desbordamiento */
}

/* Efecto de brillo en el header */
[data-theme="mc"] .header::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.1), 
        transparent);
    transition: 0.5s;
    transform: skewX(-25deg);
    z-index: -1; /* Asegurar que no cause problemas de layout */
}

[data-theme="mc"] .header:hover::before {
    left: 100%;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Efecto especial para elementos de navegación */
[data-theme="mc"] .nav-item {
    position: relative;
    overflow: hidden;
}

[data-theme="mc"] .nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    transition: 0.5s;
    transform: skewX(-25deg);
}

[data-theme="mc"] .nav-item:hover::before {
    left: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent);
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--accent), var(--accent-hover));
}

.nav {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-item {
    position: relative;
    display: flex;
    align-items: center;
    column-gap: 5px;
    padding: 5px 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-size:0.8em;
    font-weigth:200;
    color:royalblue;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
}

.nav-item:hover {
    background-color: var(--accent);
    color: white;
    transform: translateY(-2px);
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1001;
}

/* Dropdown multicolor para tema mc */
[data-theme="mc"] .dropdown-menu {
    background-color: rgba(0, 0, 0, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 12px 16px;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-item:hover {
    background-color: var(--accent);
    color: white;
}

/* Dropdown items multicolor para tema mc */
[data-theme="mc"] .dropdown-item {
    color: var(--text-primary-mc);
    transition: all 0.3s ease;
}

[data-theme="mc"] .dropdown-item:hover {
    background: linear-gradient(45deg, 
        var(--accent-mc-gold), 
        var(--accent-mc-brown), 
        var(--accent-mc-violet));
    color: white;
}

/* Tooltips */
.tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    border: 1px solid var(--border);
    box-shadow: var(--box-shadow);
    z-index: 1002;
    margin-bottom: 5px;
}

.tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--border);
}

/* Tooltip multicolor para tema mc */
[data-theme="mc"] .tooltip {
    background: linear-gradient(45deg, 
        rgba(26, 0, 26, 0.9),  /* violeta oscuro con transparencia */
        rgba(10, 10, 42, 0.9)); /* azul oscuro con transparencia */
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
}

[data-theme="mc"] .tooltip::after {
    border-top-color: rgba(255, 255, 255, 0.3);
}

.nav-item:hover .tooltip {
    opacity: 1;
    visibility: visible;
}

/* Mobile Navigation */
.mobile-nav {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hamburger menu multicolor para tema mc */
[data-theme="mc"] .hamburger span {
    background-color: var(--mc-text-menu);
}

/* Efecto hover para hamburger */
[data-theme="mc"] .hamburger:hover span {
    background-color: var(--mc-text-cyan);
}

.sidebar {
    position: fixed;
    top: 0;
    left: -100%;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border);
    transition: var(--transition);
    z-index: 1001;
    overflow-y: auto;
}

/* Sidebar multicolor para tema mc */
[data-theme="mc"] .sidebar {
    background-color: rgba(0, 0, 0, 0.9);
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 5px 0 15px rgba(0, 0, 0, 0.5);
}

.sidebar.active {
    left: 0;
}

.sidebar-header {
    padding: 10px; /* Reducido de 20px a 10px */
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 6px; /* Reducido de 10px a 6px */
}

/* Sidebar header multicolor para tema mc */
[data-theme="mc"] .sidebar-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.sidebar-nav {
    padding: 5px 0; /* Reducido de 20px a 5px */
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 8px; /* Reducido de 15px a 8px */
    padding: 8px 12px; /* Reducido de 15px 20px a 8px 12px */
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.sidebar-item:hover {
    background-color: var(--accent);
    color: white;
}

/* Sidebar items multicolor para tema mc */
[data-theme="mc"] .sidebar-item {
    color: var(--text-primary-mc);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

[data-theme="mc"] .sidebar-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    transition: 0.5s;
    transform: skewX(-25deg);
}

[data-theme="mc"] .sidebar-item:hover::before {
    left: 100%;
}

[data-theme="mc"] .sidebar-item:hover {
    background: linear-gradient(45deg, 
        var(--accent-mc-gold), 
        var(--accent-mc-brown), 
        var(--accent-mc-violet));
    color: white;
    box-shadow: 0 0 15px rgba(218, 165, 32, 0.5);
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--overlay);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
}

/* Sidebar overlay multicolor para tema mc */
[data-theme="mc"] .sidebar-overlay {
    background-color: var(--overlay-mc);
}

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

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.theme-toggle:hover {
    background-color: var(--accent);
    color: white;
}

/* Main Content */
.main {
    min-height: 100vh;
    padding-bottom: 20px;
}

.section {
    padding: var(--space-section-y) var(--space-section-x);
    max-width: var(--section-max-width);
    margin: var(--section-margin);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    overflow-x: hidden; /* Evitar desbordamiento horizontal */
}

.section h1 {
    font-size: 3rem;
    margin-bottom: var(--space-title-bottom);
    text-align: center;
    color: var(--accent);
}

.section h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    text-align: center;
    color: var(--accent);
}

/* Títulos multicolor para tema mc */
[data-theme="mc"] .section h1,
[data-theme="mc"] .section h2 {
    background: linear-gradient(var(--mc-background-grad), 
        var(--accent-mc-1), 
        var(--accent-mc-2), 
        var(--accent-mc-3), 
        var(--accent-mc-4));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    background-size: 100% 100%;
    /* Removed animation to prevent blur effects */
    position: relative;
    max-width: 100%; /* Evitar desbordamiento en pantallas estrechas */
    word-wrap: break-word; /* Asegurar que el texto se ajuste */
    overflow-wrap: break-word;
    /* Ensure sharp text */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Efecto especial para el título principal */
[data-theme="mc"] #inicio h1 {
    font-size: 3rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

[data-theme="mc"] #inicio h2 {
    font-size: 2rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* Ajustes responsivos para títulos en tema multicolor */
@media (max-width: 768px) {
    [data-theme="mc"] #inicio h1 {
        font-size: 2.5rem;
    }
    
    [data-theme="mc"] #inicio h2 {
        font-size: 1.8rem;
    }
    
    [data-theme="mc"] .section h1 {
        font-size: 2.5rem;
    }
    
    [data-theme="mc"] .section h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    [data-theme="mc"] #inicio h1 {
        font-size: 2rem;
    }
    
    [data-theme="mc"] #inicio h2 {
        font-size: 1.5rem;
    }
    
    [data-theme="mc"] .section h1 {
        font-size: 2rem;
    }
    
    [data-theme="mc"] .section h2 {
        font-size: 1.5rem;
    }
}

.section p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-element-y);
}

/* Carousel */
.carousel {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin: var(--element-margin) 0;
}

/* Carousel multicolor para tema mc */
[data-theme="mc"] .carousel {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5),
                0 0 20px rgba(79, 195, 247, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.carousel-container {
    display: flex;
    width: 600%;
    height: 100%;
    animation: carousel 18s infinite;
}

.carousel-slide {
    width: 16.666%;
    height: 100%;
    background: linear-gradient(45deg, var(--accent), var(--accent-hover));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    text-align: center;
}

/* Slides multicolor para tema mc */
[data-theme="mc"] .carousel-slide {
    background: linear-gradient(var(--mc-background-grad), 
        var(--accent-mc-1), 
        var(--accent-mc-2), 
        var(--accent-mc-3), 
        var(--accent-mc-4));
    background-size: 400% 400%;
    animation: gradientShift 8s ease infinite;
    position: relative;
    overflow: hidden;
}

/* Efecto de brillo en carousel slides */
[data-theme="mc"] .carousel-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.3), 
        transparent);
    transition: 0.5s;
    transform: skewX(-25deg);
}

[data-theme="mc"] .carousel-slide:hover::before {
    left: 100%;
}

@keyframes carousel {
    0% { transform: translateX(0); }
    16.666% { transform: translateX(-16.666%); }
    33.333% { transform: translateX(-33.333%); }
    50% { transform: translateX(-50%); }
    66.666% { transform: translateX(-66.666%); }
    83.333% { transform: translateX(-83.333%); }
    100% { transform: translateX(0); }
}

.carousel-info {
    text-align: center;
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Cards */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--content-gap);
    margin: var(--element-margin) 0;
}

/* Cards Grid for scard */
.scards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: var(--element-margin) 0;
}

.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.1),
        0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
    opacity: 0;
    transform: translateY(30px);
}

/* Efecto 3D para tarjetas en tema multicolor */
[data-theme="mc"] .card {
    background-color: var(--bg-secondary-mc);
    border: 2px solid;
    border-image: linear-gradient(45deg, 
        var(--accent-mc-1), 
        var(--accent-mc-2), 
        var(--accent-mc-3), 
        var(--accent-mc-4)) 1;
    box-shadow: 
        0 5px 15px rgba(0, 0, 0, 0.5),
        0 2px 8px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

/* Efecto de brillo en las tarjetas */
[data-theme="mc"] .card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.1), 
        transparent);
    transition: 0.5s;
    transform: skewX(-25deg);
}

[data-theme="mc"] .card:hover::before {
    left: 100%;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 
        0 8px 16px rgba(0, 0, 0, 0.2),
        0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Efecto 3D hover para tarjetas en tema multicolor */
[data-theme="mc"] .card:hover {
    transform: translateY(-5px) translateZ(10px);
    box-shadow: 
        0 10px 25px rgba(0, 0, 0, 0.7),
        0 4px 12px rgba(0, 0, 0, 0.5);
}

.card i {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 20px;
}

/* Iconos multicolor en tema multicolor */
[data-theme="mc"] .card i {
    background: linear-gradient(45deg, 
        var(--accent-mc-1), 
        var(--accent-mc-2), 
        var(--accent-mc-3), 
        var(--accent-mc-4));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    background-size: 100% 100%;
    /* Removed animation to prevent blur effects */
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

/* Títulos multicolor en tema multicolor */
[data-theme="mc"] .card h3 {
    background: linear-gradient(45deg, 
        var(--accent-mc-1), 
        var(--accent-mc-2), 
        var(--accent-mc-3), 
        var(--accent-mc-4));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    background-size: 100% 100%;
    /* Removed animation to prevent blur effects */
    /* Ensure sharp text */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

.card p {
    color: var(--text-secondary);
}

/* Contact Section */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--content-gap);
    margin: var(--element-margin) 0;
}

.contact-item {
    text-align: center;
    padding: 20px;
}

.contact-item i {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 15px;
}

/* Contact items multicolor para tema mc */
[data-theme="mc"] .contact-item i {
    background: linear-gradient(45deg, 
        var(--accent-mc-1), 
        var(--accent-mc-2), 
        var(--accent-mc-3), 
        var(--accent-mc-4));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    background-size: 100% 100%;
    /* Removed animation to prevent blur effects */
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: var(--element-margin) 0;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background-color: var(--accent);
    color: white;
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition);
    flex-shrink: 0;
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--shadow);
}

/* Responsive social links */
@media (max-width: 768px) {
    .social-links {
        gap: 12px;
    }
    
    .social-link {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .social-links {
        gap: 10px;
    }
    
    .social-link {
        width: 35px;
        height: 35px;
    }
}

/* Social links multicolor para tema mc */
[data-theme="mc"] .social-link {
    background: linear-gradient(45deg, 
        var(--accent-mc-gold), 
        var(--accent-mc-brown), 
        var(--accent-mc-violet));
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

[data-theme="mc"] .social-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.6), 
        transparent);
    transition: 0.5s;
    transform: skewX(-25deg);
}

[data-theme="mc"] .social-link:hover::before {
    left: 100%;
}

[data-theme="mc"] .social-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5),
                0 0 10px rgba(218, 165, 32, 0.5);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

/* Botones multicolor metálicos para tema mc */
[data-theme="mc"] .btn {
    background: linear-gradient(45deg, 
        var(--accent-mc-gold), 
        var(--accent-mc-brown), 
        var(--accent-mc-violet));
    border: none;
    color: white;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.3),
        0 0 10px rgba(218, 165, 32, 0.5);
    border-radius: var(--border-radius);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

/* Efecto de brillo mejorado sin desenfoque */
[data-theme="mc"] .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.6), 
        transparent);
    transition: 0.5s;
    transform: skewX(-25deg);
}

[data-theme="mc"] .btn:hover::before {
    left: 100%;
}

/* Estilo personalizado para hover en botones multicolor: mc-btn-hover */
.mc-btn-hover:hover {
    background: linear-gradient(45deg, 
        var(--accent-hover-mc-gold), 
        var(--accent-hover-mc-brown), 
        var(--accent-hover-mc-violet)) !important;
    transform: translateY(-2px) !important;
    box-shadow: 
        0 8px 25px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(218, 165, 32, 0.8) !important;
    border: 1px solid rgba(255, 255, 255, 0.3) !important;
}

/* Nuevos botones multicolor con gradientes neón */
[data-theme="mc"] .btn-neon-green {
    background: linear-gradient(45deg, 
        var(--accent-mc-neon-green), 
        var(--accent-mc-5), 
        var(--accent-mc-6));
    border: none;
    color: #000000;
    font-weight: bold;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.3),
        0 0 10px rgba(57, 255, 20, 0.5);
    border-radius: var(--border-radius);
    transition: all 0.4s ease;
}

[data-theme="mc"] .btn-neon-green:hover {
    background: linear-gradient(45deg, 
        var(--accent-hover-mc-neon-green), 
        var(--accent-mc-6), 
        var(--accent-mc-5));
    transform: translateY(-2px);
    box-shadow: 
        0 6px 20px rgba(0, 0, 0, 0.4),
        0 0 15px rgba(57, 255, 20, 0.8);
}

[data-theme="mc"] .btn-cyber-blue {
    background: linear-gradient(45deg, 
        var(--accent-mc-neon-blue), 
        var(--accent-mc-8), 
        var(--accent-mc-1));
    border: none;
    color: #ffffff;
    font-weight: bold;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.3),
        0 0 10px rgba(0, 191, 255, 0.5);
    border-radius: var(--border-radius);
    transition: all 0.4s ease;
}

[data-theme="mc"] .btn-cyber-blue:hover {
    background: linear-gradient(45deg, 
        var(--accent-hover-mc-neon-blue), 
        var(--accent-mc-1), 
        var(--accent-mc-8));
    transform: translateY(-2px);
    box-shadow: 
        0 6px 20px rgba(0, 0, 0, 0.4),
        0 0 15px rgba(0, 191, 255, 0.8);
}

[data-theme="mc"] .btn-electric-pink {
    background: linear-gradient(45deg, 
        var(--accent-mc-neon-pink), 
        var(--accent-mc-7), 
        var(--accent-mc-5));
    border: none;
    color: #ffffff;
    font-weight: bold;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.3),
        0 0 10px rgba(255, 20, 147, 0.5);
    border-radius: var(--border-radius);
    transition: all 0.4s ease;
}

[data-theme="mc"] .btn-electric-pink:hover {
    background: linear-gradient(45deg, 
        var(--accent-hover-mc-neon-pink), 
        var(--accent-mc-5), 
        var(--accent-mc-7));
    transform: translateY(-2px);
    box-shadow: 
        0 6px 20px rgba(0, 0, 0, 0.4),
        0 0 15px rgba(255, 20, 147, 0.8);
}

[data-theme="mc"] .btn-cyber-orange {
    background: linear-gradient(45deg, 
        var(--accent-mc-cyber-orange), 
        var(--accent-mc-9), 
        var(--accent-mc-3));
    border: none;
    color: #000000;
    font-weight: bold;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.3),
        0 0 10px rgba(255, 127, 0, 0.5);
    border-radius: var(--border-radius);
    transition: all 0.4s ease;
}

[data-theme="mc"] .btn-cyber-orange:hover {
    background: linear-gradient(45deg, 
        var(--accent-hover-mc-cyber-orange), 
        var(--accent-mc-3), 
        var(--accent-mc-9));
    transform: translateY(-2px);
    box-shadow: 
        0 6px 20px rgba(0, 0, 0, 0.4),
        0 0 15px rgba(255, 127, 0, 0.8);
}

[data-theme="mc"] .btn-electric-purple {
    background: linear-gradient(45deg, 
        var(--accent-mc-electric-purple), 
        var(--accent-mc-10), 
        var(--accent-mc-violet));
    border: none;
    color: #ffffff;
    font-weight: bold;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.3),
        0 0 10px rgba(191, 0, 255, 0.5);
    border-radius: var(--border-radius);
    transition: all 0.4s ease;
}

[data-theme="mc"] .btn-electric-purple:hover {
    background: linear-gradient(45deg, 
        var(--accent-hover-mc-electric-purple), 
        var(--accent-mc-violet), 
        var(--accent-mc-10));
    transform: translateY(-2px);
    box-shadow: 
        0 6px 20px rgba(0, 0, 0, 0.4),
        0 0 15px rgba(191, 0, 255, 0.8);
}

/* Estilos para Proyectos Destacados y Recursos de IA en tema multicolor */
[data-theme="mc"] .videos-container,
[data-theme="mc"] .info-tecnica-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

[data-theme="mc"] .video-card,
[data-theme="mc"] .info-tecnica-card {
    background: var(--bg-secondary-mc);
    border: 2px solid var(--border-mc);
    border-radius: var(--border-radius);
    padding: 20px;
    min-width: 280px;
    max-width: 350px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

[data-theme="mc"] .video-card:hover,
[data-theme="mc"] .info-tecnica-card:hover {
    transform: translateY(-5px);
    box-shadow: 
        0 8px 25px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(77, 195, 247, 0.3);
    border-color: var(--accent-mc-1);
}

[data-theme="mc"] .video-card a,
[data-theme="mc"] .info-tecnica-card a {
    text-decoration: none;
    color: inherit;
    display: block;
}

[data-theme="mc"] .video-card h4,
[data-theme="mc"] .info-tecnica-card h4 {
    margin: 0 0 15px 0;
    font-size: 1.3em;
    font-weight: bold;
    background: linear-gradient(45deg, 
        var(--accent-mc-1), 
        var(--accent-mc-2), 
        var(--accent-mc-3));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    background-size: 100% 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

[data-theme="mc"] .video-card p,
[data-theme="mc"] .info-tecnica-card p {
    margin: 0;
    font-size: 1em;
    color: var(--text-primary-mc);
    line-height: 1.5;
}

[data-theme="mc"] .video-card:hover h4,
[data-theme="mc"] .info-tecnica-card:hover h4 {
    background: linear-gradient(45deg, 
        var(--accent-mc-neon-green), 
        var(--accent-mc-neon-blue), 
        var(--accent-mc-electric-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="mc"] .btn:hover {
    background: linear-gradient(45deg, 
        var(--accent-hover-mc-gold), 
        var(--accent-hover-mc-brown), 
        var(--accent-hover-mc-violet));
    transform: translateY(-2px);
    box-shadow: 
        0 6px 20px rgba(0, 0, 0, 0.4),
        0 0 8px rgba(218, 165, 32, 0.5);
}

[data-theme="mc"] .btn:active {
    transform: translateY(0);
    box-shadow: 
        0 2px 10px rgba(0, 0, 0, 0.3),
        0 0 5px rgba(218, 165, 32, 0.5);
}

/* Footer */
.footer {
    background-color: var(--bg-secondary);
    padding: var(--footer-vertical-padding) var(--footer-horizontal-padding);
    text-align: center;
    border-top: 1px solid var(--border);
    min-height: var(--footer-min-height);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--footer-gap);
}

/* Media Queries */
@media (max-width: 768px) {
    html {
        --header-height: 60px;
    }

    .nav {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .mobile-nav {
        display: block;
    }

    .header {
        justify-content: space-between;
        padding: var(--header-padding);
    }

    .section {
        padding: 40px 15px;
    }

    .section h1 {
        font-size: 2.5rem;
    }

    .section h2 {
        font-size: 1.8rem;
    }

    .carousel {
        height: 250px;
    }

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

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

    .social-links {
        gap: 15px;
    }
}

@media (max-width: 480px) {
    :root {
        --sidebar-width: 250px;
        --section-padding: 30px 10px;
    }

    .section h1 {
        font-size: 2rem;
    }

    .section h2 {
        font-size: 1.5rem;
    }

    .carousel {
        height: 200px;
    }
}

/* First card with more items needs more overlay space */
.scard-card:first-child .scard-card-overlay {
    --scard-overlay-height: 65%;
}

/* Responsive Design para scard cards */
@media (min-width: 640px) {
    .scards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    :root {
        --scard-card-height: 350px;
        --scard-overlay-height: 65%;
    }
    
    /* First card with more items needs more overlay space */
    .scard-card:first-child .scard-card-overlay {
        --scard-overlay-height: 70%;
    }
}

@media (min-width: 1024px) {
    .scards-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    :root {
        --scard-card-height: 380px;
        --scard-overlay-height: 70%;
    }
    
    /* First card with more items needs more overlay space */
    .scard-card:first-child .scard-card-overlay {
        --scard-overlay-height: 75%;
        --scard-overlay-max-height: 80%;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print styles */
@media print {
    .header, .sidebar, .hamburger {
        display: none !important;
    }
    
    body {
        padding-top: 0;
    }
}