/* ========================================
   CSS CUSTOM PROPERTIES - SISTEMA DE DISEÑO
   ======================================== */
:root {
    /* Colores principales - Paleta basada en Logo ATEDU */
    --color-primary: #1f2b37;
    --color-primary-light: #2a3a4a;
    --color-primary-dark: #151d26;
    --color-secondary: #587c78;
    --color-secondary-light: #6b918c;
    --color-accent: #587c78;
    --color-accent-dark: #456461;
    --color-teal-light: #7a9e9a;
    --color-teal-dark: #3d5855;
    
    /* Neutros */
    --color-bg: #1f2b37;
    --color-bg-alt: #263542;
    --color-surface: #2e3e4d;
    --color-surface-hover: #3d4f60;
    --color-surface-hover: #3d4f60;
    
    /* Texto */
    --color-text: #f5f7f9;
    --color-text-secondary: #a8b5c0;
    --color-text-muted: #7a8a94;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-teal-light) 100%);
    --gradient-hero: linear-gradient(135deg, #587c78 0%, #1f2b37 50%, #3d5855 100%);
    --gradient-card: linear-gradient(145deg, var(--color-surface) 0%, var(--color-bg-alt) 100%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(88, 124, 120, 0.2) 0%, transparent 70%);
    
    /* Tipografía */
    --font-display: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Espaciado */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Bordes */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(88, 124, 120, 0.3);
    --shadow-accent: 0 0 30px rgba(88, 124, 120, 0.4);
    
    /* Transiciones */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-tooltip: 400;
}

/* ========================================
   RESET Y BASE
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* ========================================
   UTILIDADES
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-secondary-light) 50%, var(--color-teal-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-padding {
    padding: var(--space-4xl) 0;
}

/* ========================================
   ANIMACIONES KEYFRAMES
   ======================================== */
@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(2deg); }
}

@keyframes float-delayed {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(-2deg); }
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--color-accent); }
}

@keyframes slide-up {
    from { 
        opacity: 0; 
        transform: translateY(40px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

@keyframes slide-in-left {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slide-in-right {
    from {
        opacity: 0;
        transform: translateX(60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scale-in {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes spin-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes bounce-subtle {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes particle-float {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) scale(1);
        opacity: 0;
    }
}

@keyframes morph {
    0%, 100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
    50% { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
}

@keyframes wave {
    0%, 100% { transform: translateY(0); }
    25% { transform: translateY(-5px); }
    75% { transform: translateY(5px); }
}

/* ========================================
   NAVEGACIÓN
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    padding: var(--space-md) 0;
    transition: all var(--transition-base);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(31, 43, 55, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(88, 124, 120, 0.1);
    padding: var(--space-sm) 0;
}

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

.navbar__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transition: transform var(--transition-base);
}

.navbar__logo:hover {
    transform: scale(1.05);
}

.navbar__logo img {
    height: 60px;
    width: auto;
    border-radius: var(--radius-sm);
}

.navbar__menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.navbar__link {
    position: relative;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

.navbar__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    border-radius: var(--radius-full);
}

.navbar__link:hover,
.navbar__link:focus {
    color: var(--color-text);
}

.navbar__link:hover::after,
.navbar__link:focus::after {
    width: 100%;
}

.navbar__cta {
    background: var(--gradient-primary);
    color: var(--color-text);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.navbar__cta::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: left 0.5s ease;
}

.navbar__cta:hover::before {
    left: 100%;
}

.navbar__cta:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.navbar__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    z-index: calc(var(--z-sticky) + 10);
}

.navbar__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-base);
    transform-origin: center;
}

.navbar__toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navbar__toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.navbar__toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: calc(var(--space-4xl) + 60px) 0 var(--space-4xl);
}

/* Canvas de partículas */
.hero__particles {
    position: absolute;
    inset: 0;
    z-index: 0;
}

/* Gradientes de fondo animados */
.hero__gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 20% 40%, rgba(88, 124, 120, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 60%, rgba(31, 43, 55, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse 50% 30% at 50% 100%, rgba(88, 124, 120, 0.12) 0%, transparent 50%);
    z-index: 1;
}

/* Elementos flotantes decorativos */
.hero__orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    z-index: 1;
    opacity: 0.6;
}

.hero__orb--1 {
    width: 400px;
    height: 400px;
    background: var(--color-secondary);
    top: 10%;
    left: -100px;
    animation: float 8s ease-in-out infinite;
}

.hero__orb--2 {
    width: 300px;
    height: 300px;
    background: var(--color-teal-light);
    bottom: 10%;
    right: -50px;
    animation: float-delayed 10s ease-in-out infinite;
}

.hero__orb--3 {
    width: 200px;
    height: 200px;
    background: var(--color-teal-dark);
    top: 40%;
    right: 20%;
    animation: pulse-glow 6s ease-in-out infinite;
}

/* Grid de tecnología */
.hero__grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(88, 124, 120, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(88, 124, 120, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 1;
    animation: shimmer 20s linear infinite;
}

.hero__content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: rgba(88, 124, 120, 0.15);
    border: 1px solid rgba(88, 124, 120, 0.4);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-secondary-light);
    margin-bottom: var(--space-xl);
    animation: slide-up 0.8s ease-out;
}

.hero__badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--color-secondary);
    border-radius: 50%;
    animation: pulse-glow 2s ease-in-out infinite;
}

.hero__title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    margin-bottom: var(--space-lg);
    line-height: 1.1;
    animation: slide-up 0.8s ease-out 0.1s both;
}

/* Efecto de texto que se escribe */
.hero__typing {
    display: inline-block;
    overflow: visible;
    white-space: normal;
    border-right: 3px solid var(--color-secondary);
    min-height: 1.2em;
    vertical-align: bottom;
    animation: blink-caret 0.75s step-end infinite;
    word-wrap: break-word;
    max-width: 100%;
}

.hero__typing.typing-active {
    animation: typing var(--typing-duration) steps(40) forwards,
               blink-caret 0.75s step-end infinite;
}

.hero__typing.erasing-active {
    animation: erasing var(--erasing-duration) steps(20) forwards,
               blink-caret 0.75s step-end infinite;
}

.hero__typing--erasing {
    animation: 
        erasing 1s steps(20) forwards,
        blink-caret 0.75s step-end infinite;
}

@keyframes erasing {
    from { width: 100%; }
    to { width: 0; }
}

.hero__subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto var(--space-2xl);
    animation: slide-up 0.8s ease-out 0.3s both;
}

.hero__cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
    animation: slide-up 0.8s ease-out 0.5s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--gradient-primary);
    color: var(--color-text);
    box-shadow: 0 4px 15px rgba(88, 124, 120, 0.4);
}

.btn--primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s ease;
}

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

.btn--primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.btn--secondary {
    background: transparent;
    color: var(--color-text);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn--secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-3px);
}

/* ========================================
   HERO FEATURES
   ======================================== */
.hero__features {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    margin-top: var(--space-3xl);
    animation: slide-up 0.8s ease-out 0.7s both;
}

.hero__feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.hero__feature-icon {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    animation: bounce-subtle 2s ease-in-out infinite;
    z-index: 10;
}

.scroll-indicator svg {
    width: 24px;
    height: 24px;
}

/* ========================================
   SECCIONES GENERALES
   ======================================== */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section-header--left {
    text-align: left;
    margin-left: 0;
}

.section__eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-secondary-light);
    margin-bottom: var(--space-md);
}

.section__title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--space-md);
}

.section__description {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
}

/* ========================================
   SOBRE NOSOTROS
   ======================================== */
.about {
    position: relative;
    overflow: hidden;
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about__visual {
    position: relative;
}

.about__visual-main {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about__visual-main::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0.1;
    z-index: 1;
}

.about__visual-main img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
}

/* Elementos decorativos flotantes */
.about__float {
    position: absolute;
    padding: var(--space-md);
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: 2;
}

.about__float--1 {
    top: -20px;
    right: -30px;
    animation: float 6s ease-in-out infinite;
}

.about__float--2 {
    bottom: 20px;
    left: -40px;
    animation: float-delayed 7s ease-in-out infinite;
}

.about__stat {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.about__stat-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.about__stat-icon svg {
    width: 20px;
    height: 20px;
}

.about__stat-content strong {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
}

.about__stat-content span {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.about__content {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.about__text {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

.about__cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.about__card {
    padding: var(--space-lg);
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.about__card:hover {
    transform: translateY(-5px);
    border-color: rgba(88, 124, 120, 0.4);
    box-shadow: var(--shadow-md);
}

.about__card-icon {
    width: 48px;
    height: 48px;
    background: rgba(88, 124, 120, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    color: var(--color-secondary-light);
    transition: all var(--transition-base);
}

.about__card:hover .about__card-icon {
    background: var(--color-secondary);
    color: var(--color-text);
}

.about__card-icon svg {
    width: 24px;
    height: 24px;
}

.about__card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
}

.about__card p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ========================================
   EVENTOS / ACTIVIDADES
   ======================================== */
.events {
    background: var(--color-bg-alt);
    position: relative;
}

.events__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-xl);
}

.event-card {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-slow);
    transform-style: preserve-3d;
    perspective: 1000px;
}

.event-card:hover {
    transform: translateY(-10px) rotateX(2deg);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
    border-color: rgba(88, 124, 120, 0.3);
}

.event-card__image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.event-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.event-card:hover .event-card__image img {
    transform: scale(1.1);
}

.event-card__badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-secondary);
    color: var(--color-text);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
}

.event-card__badge--webinar {
    background: var(--color-teal-light);
}

.event-card__badge--taller {
    background: var(--color-surface-hover);
}

.event-card__badge--encuentro {
    background: var(--color-secondary-dark);
}

.event-card__date {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    text-align: center;
    padding: var(--space-sm);
    background: rgba(31, 43, 55, 0.95);
    border-radius: var(--radius-md);
    min-width: 60px;
}

.event-card__date-day {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1;
    color: var(--color-secondary-light);
}

.event-card__date-month {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
}

.event-card__content {
    padding: var(--space-lg);
}

.event-card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.event-card__meta span {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.event-card__meta svg {
    width: 14px;
    height: 14px;
}

.event-card__title {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.event-card__description {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.event-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.9rem;
    transition: gap var(--transition-base);
}

.event-card__link:hover {
    gap: var(--space-sm);
}

.event-card__link svg {
    width: 16px;
    height: 16px;
}

/* ========================================
   RECURSOS
   ======================================== */
.resources {
    position: relative;
}

.resources__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.resource-card {
    position: relative;
    padding: var(--space-xl);
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-base);
    overflow: hidden;
}

.resource-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.resource-card:hover {
    transform: translateY(-8px);
    border-color: transparent;
}

.resource-card:hover::before {
    opacity: 0.05;
}

.resource-card__icon {
    position: relative;
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-lg);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.resource-card:hover .resource-card__icon {
    background: var(--color-accent);
    transform: scale(1.1) rotate(5deg);
}

.resource-card__icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
    transition: color var(--transition-base);
}

.resource-card:hover .resource-card__icon svg {
    color: var(--color-bg);
}

.resource-card__title {
    position: relative;
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
}

.resource-card__description {
    position: relative;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ========================================
   TESTIMONIOS (CAROUSEL)
   ======================================== */
.testimonials {
    background: var(--color-bg-alt);
    position: relative;
    overflow: hidden;
}

.testimonials::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: var(--gradient-glow);
    animation: spin-slow 60s linear infinite;
    pointer-events: none;
}

.testimonials__container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.testimonials__carousel {
    position: relative;
    overflow: hidden;
}

.testimonials__track {
    display: flex;
    transition: transform var(--transition-slow);
}

.testimonial {
    flex: 0 0 100%;
    padding: var(--space-xl);
}

.testimonial__card {
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    position: relative;
}

.testimonial__quote {
    position: absolute;
    top: var(--space-lg);
    left: var(--space-xl);
    font-size: 6rem;
    line-height: 1;
    color: var(--color-accent);
    opacity: 0.2;
    font-family: Georgia, serif;
}

.testimonial__text {
    position: relative;
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    font-style: italic;
}

.testimonial__author {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.testimonial__avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-accent);
}

.testimonial__name {
    font-size: 1.1rem;
    font-weight: 600;
}

.testimonial__role {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.testimonials__controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.testimonials__btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.testimonials__btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-bg);
}

.testimonials__btn svg {
    width: 20px;
    height: 20px;
}

.testimonials__dots {
    display: flex;
    gap: var(--space-sm);
}

.testimonials__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-base);
}

.testimonials__dot.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    width: 30px;
    border-radius: var(--radius-full);
}

/* ========================================
   ROL DEL TECNÓLOGO EDUCATIVO
   ======================================== */
.roles {
    position: relative;
}

.roles__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.role-card {
    position: relative;
    padding: var(--space-xl);
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.role-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 212, 170, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.role-card__icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(45, 156, 219, 0.1));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    color: var(--color-accent);
    transition: all var(--transition-base);
}

.role-card:hover .role-card__icon {
    background: var(--gradient-primary);
    color: var(--color-text);
    transform: scale(1.1);
}

.role-card__icon svg {
    width: 28px;
    height: 28px;
}

.role-card__title {
    font-size: 1.15rem;
    margin-bottom: var(--space-sm);
}

.role-card__description {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ========================================
   NEWSLETTER / CTA
   ======================================== */
.cta {
    position: relative;
    padding: var(--space-4xl) 0;
}

.cta__container {
    position: relative;
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-3xl);
    text-align: center;
    overflow: hidden;
}

.cta__container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
}

.cta__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--space-md);
}

.cta__description {
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    font-size: 1.1rem;
}

.newsletter {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-width: 500px;
    margin: 0 auto;
}

.newsletter__input {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--color-text);
    font-size: 1rem;
    transition: border-color var(--transition-base);
    width: 100%;
    box-sizing: border-box;
}

.newsletter__input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.newsletter__input::placeholder {
    color: var(--color-text-muted);
}

.newsletter button {
    align-self: flex-start;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--color-bg-alt);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer__brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.footer__logo img {
    height: 40px;
    border-radius: var(--radius-sm);
}

.footer__description {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    max-width: 300px;
}

.footer__social {
    display: flex;
    gap: var(--space-sm);
}

.footer__social-link {
    width: 40px;
    height: 40px;
    background: var(--color-surface);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.footer__social-link:hover {
    background: var(--color-accent);
    transform: translateY(-3px);
}

.footer__social-link svg {
    width: 18px;
    height: 18px;
}

.footer__column h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-lg);
    color: var(--color-text);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__link {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.footer__contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.footer__contact-item svg {
    width: 18px;
    height: 18px;
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer__bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer__copyright {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.footer__legal {
    display: flex;
    gap: var(--space-lg);
}

.footer__legal-link {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    transition: color var(--transition-fast);
}

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

/* ========================================
   ANIMACIONES DE SCROLL REVEAL
   ======================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal--left {
    transform: translateX(-50px);
}

.reveal--right {
    transform: translateX(50px);
}

.reveal--scale {
    transform: scale(0.9);
}

.reveal--left.active,
.reveal--right.active,
.reveal--scale.active {
    transform: translateX(0) scale(1);
}

/* Stagger delays */
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
.reveal[data-delay="5"] { transition-delay: 0.5s; }
.reveal[data-delay="6"] { transition-delay: 0.6s; }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .about__grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .about__visual {
        order: -1;
    }

    .resources__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .roles__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --space-4xl: 4rem;
    }

    .navbar__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-bg);
        flex-direction: column;
        padding: var(--space-3xl) var(--space-xl);
        transition: right var(--transition-base);
        border-left: 1px solid rgba(255, 255, 255, 0.1);
    }

    .navbar__menu.open {
        right: 0;
    }

    .navbar__toggle {
        display: flex;
    }

    .hero__features {
        flex-direction: column;
        gap: var(--space-md);
    }

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

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

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

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

    .newsletter {
        flex-direction: column;
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ========================================
   ESTADOS DE FOCUS (ACCESIBILIDAD)
   ======================================== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Skip link para navegación por teclado */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-accent);
    color: var(--color-bg);
    font-weight: 600;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    z-index: 9999;
    transition: top var(--transition-base);
}

.skip-link:focus {
    top: 0;
}

/* ========================================
   LOADING STATES & ALERTS
   ======================================== */
.skeleton {
    background: linear-gradient(90deg, var(--color-surface) 25%, var(--color-surface-hover) 50%, var(--color-surface) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

/* HTMX Loading Indicator */
.htmx-indicator {
    display: none;
    margin-right: var(--space-sm);
    vertical-align: middle;
}

.htmx-indicator svg {
    animation: spin 1s linear infinite;
}

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

/* Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    margin-right: var(--space-sm);
    vertical-align: middle;
    color: currentColor;
    stroke: currentColor;
    stroke-width: 3;
}

.spinner--hidden {
    display: none;
}

.spinner circle {
    fill: none;
    stroke: inherit;
    stroke-dasharray: 60;
    stroke-dashoffset: 0;
    animation: dashArray 1.5s ease-in-out infinite;
}

@keyframes dashArray {
    0% {
        stroke-dasharray: 5, 150;
        stroke-dashoffset: -5;
    }
    50% {
        stroke-dasharray: 100, 150;
        stroke-dashoffset: -75;
    }
    100% {
        stroke-dasharray: 5, 150;
        stroke-dashoffset: -155;
    }
}

/* Alert Messages */
.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    margin-top: var(--space-lg);
    font-weight: 500;
    animation: slideInUp 0.4s ease-out;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

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

.alert--success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border: 1px solid #059669;
}

.alert--error {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    border: 1px solid #dc2626;
}

.alert--warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    border: 1px solid #d97706;
}

.alert--info {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border: 1px solid #2563eb;
}

/* Button with loading state */
.btn.htmx-request {
    pointer-events: none;
}

.btn.htmx-request .btn-text {
    display: none;
}

.btn.htmx-request .spinner--hidden {
    display: inline-block;
}