/* ================================================================= */
/*           ARCHIVO style.css COMPLETO Y CORREGIDO (v3.2)           */
/*        Versión Final - Incluye corrección de Parallax             */
/* ================================================================= */

/* --- VARIABLES Y RESET BÁSICO --- */
:root {
    --font-primary: 'Inter', sans-serif;
    --font-monospace: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;

    /* Colores Base */
    --bg-primary-dark: #0B0A18;
    --bg-secondary-dark: #100F23;
    --bg-tertiary-dark: #1A182F;
    --text-primary-dark: #F0F0FF;
    --text-secondary-dark: #9897B8;
    
    --accent-purple: #A755F7;
    --accent-blue: #4D5BFF;
    --accent-green-web3: #2AF598;
    --accent-pink-web3: #F72585;

    --accent-purple-rgb: 167, 85, 247;
    --accent-blue-rgb: 77, 91, 255;
    --accent-green-web3-rgb: 42, 245, 152;
    --accent-pink-web3-rgb: 247, 37, 133;

    --glass-bg-dark: rgba(26, 24, 47, 0.45);
    --glass-border-dark: rgba(var(--accent-blue-rgb), 0.25);
    --code-bg-dark: #161526; 
    --code-text-dark: #D1D1E8;

    /* Paleta Light */
    --bg-primary-light: #F7F8FC;
    --bg-secondary-light: #FFFFFF;
    --bg-tertiary-light: #EBEFF7;
    --text-primary-light: #121020;
    --text-secondary-light: #525070;
    --glass-bg-light: rgba(247, 248, 252, 0.7);
    --glass-border-light: rgba(var(--accent-purple-rgb), 0.15);
    --code-bg-light: #EAEFF9;
    --code-text-light: #2E2B4A;

    /* Variables de Estado */
    --current-bg-primary: var(--bg-primary-dark);
    --current-bg-secondary: var(--bg-secondary-dark);
    --current-bg-tertiary: var(--bg-tertiary-dark);
    --current-text-primary: var(--text-primary-dark);
    --current-text-secondary: var(--text-secondary-dark);
    --current-glass-bg: var(--glass-bg-dark);
    --current-glass-border: var(--glass-border-dark);
    --current-code-bg: var(--code-bg-dark);
    --current-code-text: var(--code-text-dark);
    
    --bg-primary-dark-rgb: 11, 10, 24;
    --bg-primary-light-rgb: 245, 246, 250;
    --current-bg-primary-rgb: var(--bg-primary-dark-rgb);
    --glass-bg-dark-rgb: 26, 24, 47;
    --glass-bg-light-rgb: 235, 239, 247;
    --current-glass-bg-rgb: var(--glass-bg-dark-rgb);

    /* Gradientes */
    --gradient-main: linear-gradient(125deg, var(--accent-pink-web3), var(--accent-purple), var(--accent-blue), var(--accent-green-web3));
    --gradient-interactive: linear-gradient(125deg, var(--accent-blue), var(--accent-green-web3), var(--accent-pink-web3));
    --gradient-nav-highlight: linear-gradient(125deg, var(--accent-purple) 0%, var(--accent-blue) 100%);

    /* Sombras */
    --shadow-soft: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-medium: 0 8px 30px rgba(0,0,0,0.12);
    --shadow-glow-blue: 0 0 25px -5px rgba(var(--accent-blue-rgb), 0.45);
    --shadow-glow-purple: 0 0 25px -5px rgba(var(--accent-purple-rgb), 0.35);

    /* Bordes y Espaciado */
    --border-radius-sm: 0.5rem;
    --border-radius-md: 0.75rem;
    --border-radius-lg: 1.25rem;
    --spacing-unit: 8px;
    
    /* Animación y Transición */
    --duration-fast: 0.2s;
    --duration-medium: 0.4s;
    --duration-slow: 0.8s;
    --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);
    --ease-out-quad: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}

html[data-theme="light"] {
    --current-bg-primary: var(--bg-primary-light);
    --current-bg-secondary: var(--bg-secondary-light);
    --current-bg-tertiary: var(--bg-tertiary-light);
    --current-text-primary: var(--text-primary-light);
    --current-text-secondary: var(--text-secondary-light);
    --current-glass-bg: var(--glass-bg-light);
    --current-glass-border: var(--glass-border-light);
    --current-code-bg: var(--code-bg-light);
    --current-code-text: var(--code-text-light);
    --current-bg-primary-rgb: var(--bg-primary-light-rgb);
    --current-glass-bg-rgb: var(--glass-bg-light-rgb);
}

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

html {
    scroll-behavior: smooth;
    font-size: 100%; 
}

body {
    font-family: var(--font-primary);
    background: var(--current-bg-primary);
    color: var(--current-text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background var(--duration-medium) var(--ease-in-out), color var(--duration-medium) var(--ease-in-out);
    overflow-x: hidden; 
    position: relative;
    font-size: 1.05rem; 
}

html[data-theme="dark"] body::before {
    content: "";
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image:
        linear-gradient(to right, rgba(var(--accent-blue-rgb), 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(var(--accent-blue-rgb), 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    opacity: 0.5;
    pointer-events: none;
}

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

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color var(--duration-fast) ease, transform var(--duration-fast) var(--ease-out-quad);
}
a:hover {
    color: var(--accent-purple);
    transform: translateY(-2px);
}

/* --- ESTILOS PARA ANIMACIONES EXTRA --- */
.spotlight-card {
    position: relative;
    overflow: hidden;
}
.spotlight-card::before {
    content: '';
    position: absolute;
    left: var(--x, 50%);
    top: var(--y, 50%);
    transform: translate(-50%, -50%);
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(var(--accent-blue-rgb), 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}
.spotlight-card:hover::before {
    opacity: 1;
}

.gradient-border-on-hover {
    position: relative;
    z-index: 1;
}
.gradient-border-on-hover::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: var(--gradient-interactive);
    background-size: 200% 200%;
    z-index: -1;
    opacity: 0;
    transition: opacity var(--duration-medium) ease;
    animation: gradient-flow 6s ease infinite;
}
.gradient-border-on-hover:hover::before {
    opacity: 1;
}

.reveal-text .reveal-word {
    display: inline-block;
    opacity: 0;
    transform: translateY(25px) rotate(4deg);
    transform-origin: bottom left;
    transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}
.animate-on-scroll.is-visible .reveal-word {
    opacity: 1;
    transform: translateY(0) rotate(0);
}

.container {
    width: 90%;
    max-width: 1240px;
    margin-left: auto;
    margin-right: auto;
    padding-left: calc(var(--spacing-unit) * 2.5); 
    padding-right: calc(var(--spacing-unit) * 2.5); 
}

.section-padding {
    padding-top: calc(var(--spacing-unit) * 15); 
    padding-bottom: calc(var(--spacing-unit) * 15); 
    position: relative;
}

.alt-bg {
    background-color: var(--current-bg-secondary);
}
html[data-theme="dark"] .alt-bg {
    background-color: #100F23; 
    border-top: 1px solid rgba(var(--accent-blue-rgb), 0.1);
    border-bottom: 1px solid rgba(var(--accent-blue-rgb), 0.1);
}

.tertiary-bg {
    background-color: var(--current-bg-tertiary);
}

.gradient-text {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    animation: gradient-flow 10s ease infinite;
    background-size: 300% 300%;
    display: inline-block;
}

.text-accent-purple { color: var(--accent-purple); }
.text-accent-blue { color: var(--accent-blue); }

.glassmorphism {
    background: var(--current-glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--current-glass-border);
    border-radius: var(--border-radius-lg);
    padding: calc(var(--spacing-unit) * 4);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.05);
    transition: transform var(--duration-medium) var(--ease-out-quad),
                box-shadow var(--duration-medium) var(--ease-out-quad),
                border-color var(--duration-medium) var(--ease-out-quad);
}
.glassmorphism:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: rgba(var(--accent-blue-rgb), 0.4);
    box-shadow: var(--shadow-medium), var(--shadow-glow-blue);
}

.section-title {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 2);
    line-height: 1.2;
    letter-spacing: -1.5px;
    display: block; 
    width: 100%;
}
.section-title .gradient-text {
    vertical-align: baseline;
}

.section-subtitle {
    font-size: clamp(1.1rem, 3vw, 1.25rem);
    color: var(--current-text-secondary);
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: calc(var(--spacing-unit) * 8);
    line-height: 1.7; 
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--spacing-unit) * 1.75) calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 1rem; 
    text-align: center;
    cursor: pointer;
    transition: all var(--duration-medium) var(--ease-out-quad);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    -webkit-tap-highlight-color: transparent;
    transform: perspective(1px) translateZ(0);
}
.btn::before {
    content: '';
    position: absolute;
    left: var(--x, 50%); top: var(--y, 50%);
    transform: translate(-50%, -50%) scale(0);
    width: 250px; height: 250px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
    transition: transform 0.8s var(--ease-out-expo);
    opacity: 0; 
    pointer-events: none;
}
.btn:hover::before { 
    transform: translate(-50%, -50%) scale(1); 
    opacity: 1; 
}

.btn-primary {
    background: var(--gradient-main);
    background-size: 250% 250%;
    animation: gradient-flow 8s ease infinite;
    color: #fff;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2), inset 0 -1px 2px rgba(0,0,0,0.2);
}
.btn-primary:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 8px 25px rgba(0,0,0,0.25), var(--shadow-glow-blue);
    animation-play-state: paused;
}

.btn-secondary {
    background-color: rgba(var(--current-bg-tertiary-rgb), 0.5);
    color: var(--current-text-primary);
    border-color: var(--current-glass-border);
}
.btn-secondary:hover {
    transform: translateY(-3px) scale(1.03);
    background-color: rgba(var(--accent-purple-rgb), 0.1);
    border-color: rgba(var(--accent-purple-rgb), 0.5);
    color: var(--accent-purple);
    box-shadow: var(--shadow-glow-purple);
}
html[data-theme="light"] .btn-secondary:hover {
    color: var(--accent-purple);
}

/* --- HEADER STYLES --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: calc(var(--spacing-unit) * 2.25) 0; 
    transition: all var(--duration-medium) var(--ease-in-out);
    border-bottom: 1px solid transparent;
    opacity: 0;
    transform: translateY(-100%);
    animation: slide-in-down 1s var(--ease-out-expo) 2.5s forwards;
}
.site-header.scrolled {
    background-color: rgba(var(--current-bg-primary-rgb), 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    padding: calc(var(--spacing-unit) * 1.75) 0; 
    border-bottom-color: var(--current-glass-border);
}

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

.logo { 
    display: inline-flex; 
    align-items: center;
    line-height: 0;
    margin-right: auto; 
}
.logo-img {
    height: calc(var(--spacing-unit) * 5.5); 
    width: auto;
    display: block;
    transition: transform var(--duration-medium) var(--ease-out-back), filter var(--duration-medium) ease;
}
.logo:hover .logo-img {
    transform: scale(1.1) rotate(-5deg);
    filter: drop-shadow(0 0 10px rgba(var(--accent-blue-rgb), 0.5));
}

.main-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-unit); 
    margin-left: calc(var(--spacing-unit) * 3); 
}
.nav-link {
    font-weight: 500;
    color: var(--current-text-secondary);
    padding: calc(var(--spacing-unit) * 1.25) calc(var(--spacing-unit) * 1.5); 
    position: relative;
    letter-spacing: 0.3px;
    transition: color var(--duration-fast) ease;
    font-size: 1rem; 
    border-radius: var(--border-radius-sm);
    white-space: nowrap;
}
.nav-link:hover {
    color: var(--current-text-primary);
}
.nav-link.active {
    color: var(--current-text-primary);
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 5px; 
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-nav-highlight);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--duration-medium) var(--ease-out-quad);
}
.nav-link:hover::after, 
.nav-link.active::after {
    transform: scaleX(1); 
}

.theme-toggle-btn, .mobile-theme-toggle-btn {
    background: transparent;
    border: 1px solid var(--current-glass-border);
    color: var(--current-text-secondary);
    cursor: pointer;
    padding: calc(var(--spacing-unit) * 0.75); 
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-fast) ease;
    margin-left: calc(var(--spacing-unit) * 2); 
}
.theme-toggle-btn:hover, .mobile-theme-toggle-btn:hover {
    background-color: rgba(var(--accent-blue-rgb),0.1);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: scale(1.05);
}
.theme-toggle-btn .icon {
    width: calc(var(--spacing-unit) * 2.25); 
    height: calc(var(--spacing-unit) * 2.25); 
}
.icon-moon { display: none; }
html[data-theme="dark"] .icon-sun { display: none; }
html[data-theme="dark"] .icon-moon { display: block; }

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--current-text-primary);
    cursor: pointer;
    z-index: 1001;
    margin-left: calc(var(--spacing-unit) * 2); 
}
.mobile-menu-toggle .icon {
    width: calc(var(--spacing-unit) * 3); 
    height: calc(var(--spacing-unit) * 3); 
}
.mobile-menu-toggle .icon-close { display: none; }
.mobile-menu-toggle.active .icon-menu { display: none; }
.mobile-menu-toggle.active .icon-close { display: block; }

.mobile-menu {
    display: none; 
    position: fixed; 
    top: 0; 
    left: 0;
    width: 100%;
    height: 100vh; 
    background-color: var(--current-bg-primary); 
    padding: calc(var(--spacing-unit) * 10) calc(var(--spacing-unit) * 2.5) calc(var(--spacing-unit) * 4);
    opacity: 0;
    transform: translateX(100%);
    transition: opacity var(--duration-medium) var(--ease-in-out), transform var(--duration-medium) var(--ease-in-out);
    overflow-y: auto; 
    z-index: 999; 
}
.mobile-menu.open {
    display: flex; 
    flex-direction: column;
    align-items: center; 
    justify-content: center; 
    opacity: 1;
    transform: translateX(0%);
}
.mobile-nav-link, .mobile-menu > .mobile-theme-toggle-btn { 
    display: block;
    color: var(--current-text-primary);
    padding: calc(var(--spacing-unit) * 2) 0; 
    text-align: center;
    border-bottom: 1px solid var(--current-glass-border);
    font-size: 1.4rem; 
    font-weight: 500;
    width: 100%;
    max-width: 300px; 
    transition: color 0.2s ease, transform 0.2s ease;
}
.mobile-nav-link:last-of-type { 
    border-bottom: none;
}
.mobile-menu > .mobile-theme-toggle-btn { 
    border: 1px solid var(--current-glass-border); 
    border-radius: var(--border-radius-md);
    margin-top: calc(var(--spacing-unit) * 3); 
    width: auto; 
    padding: calc(var(--spacing-unit) * 1.25); 
}
.mobile-nav-link:hover {
    color: var(--accent-purple);
    transform: scale(1.05);
}

/* --- HERO SECTION --- */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: calc(var(--spacing-unit) * 14); 
    padding-bottom: calc(var(--spacing-unit) * 12); 
    position: relative;
    overflow: hidden;
}
.hero-section::before, .hero-section::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    z-index: -2;
    pointer-events: none;
    transition: background var(--duration-medium) ease, opacity var(--duration-medium) ease;
}
html[data-theme="dark"] .hero-section::before {
    width: 40vw; height: 40vw; min-width: 350px; min-height: 350px;
    background: rgba(var(--accent-purple-rgb), 0.3);
    left: -10%; top: 10%;
    filter: blur(120px);
    animation: float-bubble-1 25s infinite ease-in-out;
}
html[data-theme="dark"] .hero-section::after {
    width: 35vw; height: 35vw; min-width: 300px; min-height: 300px;
    background: rgba(var(--accent-blue-rgb), 0.3);
    right: -10%; bottom: 10%;
    filter: blur(120px);
    animation: float-bubble-2 30s infinite ease-in-out;
}
html[data-theme="light"] .hero-section::before, html[data-theme="light"] .hero-section::after {
    opacity: 0.5; filter: blur(150px);
}
.hero-background-overlay {
    position: absolute; inset: 0;
    z-index: -1;
    transition: background var(--duration-medium) ease, opacity var(--duration-medium) ease;
}
html[data-theme="dark"] .hero-background-overlay {
    background: radial-gradient(ellipse at center, transparent 30%, var(--bg-primary-dark) 85%);
}
html[data-theme="light"] .hero-background-overlay {
    background: radial-gradient(ellipse at center, transparent 50%, rgba(var(--bg-primary-light-rgb), 0.6) 90%);
}
.hero-content {
    position: relative; z-index: 1; width: 100%; 
}
.hero-headline {
    font-size: clamp(2.5rem, 8vw, 5.5rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -2px;
    margin-bottom: calc(var(--spacing-unit) * 4);
    color: var(--current-text-primary);
    text-shadow: 0 2px 25px rgba(0,0,0,0.2);
      white-space: normal;
}
.hero-headline .word {
    display: inline-block;
    opacity: 0;
    transform: translateY(50px) rotate(5deg);
    animation: word-in 1s var(--ease-out-expo) forwards;
}
.hero-headline .word:nth-child(1) { animation-delay: 0.2s; }
.hero-headline .word:nth-child(2) { animation-delay: 0.3s; }
.hero-headline .word:nth-child(3) { animation-delay: 0.4s; }
.hero-subheadline {
    font-size: clamp(1.2rem, 3.5vw, 1.5rem);
    max-width: 800px;
    margin: 0 auto calc(var(--spacing-unit) * 5);
    color: var(--current-text-secondary);
    opacity: 0;
    transform: translateY(20px);
    animation: fade-in-up 1s var(--ease-out-expo) 1.2s forwards;
}
.hero-cta-group {
    display: flex;
    justify-content: center;
    gap: calc(var(--spacing-unit) * 2);
    opacity: 0;
    transform: translateY(20px);
    animation: fade-in-up 1s var(--ease-out-expo) 1.4s forwards;
}

/* --- Possibilities Section --- */
.possibilities-intro {
    max-width: 750px;
    margin: 0 auto calc(var(--spacing-unit) * 7) auto;
    text-align: center;
}
.possibilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}
.possibility-card {
    background-color: transparent;
    border: 1px solid var(--current-glass-border);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    transition: all var(--duration-medium) var(--ease-out-quad);
}
.possibility-card:hover {
    transform: translateY(-8px);
    background-color: var(--current-bg-tertiary);
    box-shadow: var(--shadow-medium);
}
.possibility-icon {
    height: 48px; width: 48px; margin-bottom: 1.5rem; object-fit: contain;
}
.possibility-title {
    font-size: 1.3rem; font-weight: 600; margin-bottom: 0.75rem; color: var(--current-text-primary);
}
.possibility-description {
    font-size: 0.95rem; line-height: 1.6; color: var(--current-text-secondary);
}

/* --- Explanation Section --- */
.explanation-section { position: relative; overflow: hidden; }
.explanation-intro {
    max-width: 750px; margin: 0 auto calc(var(--spacing-unit) * 7) auto; text-align: center;
}
.explanation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    position: relative;
    align-items: start;
}
.explanation-card {
    background-color: var(--current-bg-secondary);
    border: 1px solid var(--current-glass-border);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem 2rem;
    text-align: center;
    transition: all var(--duration-medium) var(--ease-out-quad);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.explanation-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}
.explanation-icon-wrapper {
    margin-bottom: 1.5rem;
    background: linear-gradient(145deg, var(--accent-blue), var(--accent-purple));
    border-radius: 50%;
    width: 80px; height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(128, 90, 213, 0.3);
    transition: transform var(--duration-medium) var(--ease-out-back);
}
.explanation-card:hover .explanation-icon-wrapper {
    transform: scale(1.1);
}
.explanation-icon {
    width: 40px; height: 40px; filter: brightness(0) invert(1);
}
.explanation-title {
    font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; color: var(--current-text-primary);
}
.explanation-description {
    font-size: 1rem; line-height: 1.6; color: var(--current-text-secondary); flex-grow: 1;
}
@media (min-width: 992px) {
    .explanation-grid { align-items: center; }
    .explanation-connector {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: calc(100% / 3 - 3rem);
        height: 2px;
        background-image: linear-gradient(to right, var(--accent-blue), var(--accent-purple));
        opacity: 0.5;
    }
    .connector-1 { left: calc(100% / 3 + 1.5rem / 2); }
    .connector-2 { right: calc(100% / 3 + 1.5rem / 2); }
}

/* --- CHALLENGE SECTION --- */
.challenge-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: calc(var(--spacing-unit) * 4); margin-top: calc(var(--spacing-unit) * 5);
}
.challenge-card {
    text-align: center; padding: calc(var(--spacing-unit) * 3.5); max-width: 400px;
    border-radius: var(--border-radius-lg);
    transition: all var(--duration-medium) var(--ease-out-quad);
}
.challenge-card:hover {
    transform: translateY(-5px); background-color: rgba(var(--current-bg-primary-rgb), 0.5);
}
.challenge-icon {
    height: calc(var(--spacing-unit) * 7); width: calc(var(--spacing-unit) * 7);
    margin: 0 auto calc(var(--spacing-unit) * 2.5);
    transition: transform var(--duration-medium) var(--ease-out-back);
}
.challenge-card:hover .challenge-icon { transform: scale(1.15); }
.challenge-title { font-size: 1.5rem; font-weight: 600; margin-bottom: calc(var(--spacing-unit) * 1.5); color: var(--current-text-primary); }
.challenge-description { font-size: 1rem; color: var(--current-text-secondary); }

/* --- BENEFITS SECTION --- */
.benefits-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: calc(var(--spacing-unit) * 4); }
.benefit-card { max-width: 400px; text-align: center; }
.benefit-icon { height: calc(var(--spacing-unit) * 8); width: calc(var(--spacing-unit) * 8); margin: 0 auto calc(var(--spacing-unit) * 2); transition: transform var(--duration-medium) var(--ease-out-back), filter var(--duration-medium) ease; }
.benefit-card:hover .benefit-icon { transform: translateY(-8px) scale(1.15) rotate(5deg); filter: drop-shadow(var(--shadow-glow-blue)); }
.benefit-title { font-size: 1.4rem; font-weight: 600; margin-bottom: calc(var(--spacing-unit) * 1.5); color: var(--accent-blue); transition: color 0.3s ease; }
html[data-theme="dark"] .benefit-card:nth-child(even) .benefit-title { color: var(--accent-purple); }
.benefit-card:hover .benefit-title { color: var(--accent-pink-web3); }
.benefit-description { font-size: 1rem; color: var(--current-text-secondary); }

/* --- HOW IT WORKS SECTION (renamed from steps-diagram) --- */
.steps-diagram { display: flex; flex-direction: column; align-items: center; gap: calc(var(--spacing-unit) * 4); }
.step { text-align: center; max-width: 380px; }
.step-number-wrapper { width: calc(var(--spacing-unit) * 10); height: calc(var(--spacing-unit) * 10); border-radius: 50%; background: var(--gradient-main); display: flex; align-items: center; justify-content: center; margin: 0 auto calc(var(--spacing-unit) * 2.5); box-shadow: var(--shadow-glow-blue); transition: transform var(--duration-medium) var(--ease-out-back), box-shadow var(--duration-medium) ease, border-image-source 0.3s ease; border: 3px solid transparent; background-clip: padding-box; }
.step:hover .step-number-wrapper { transform: scale(1.15) rotate(-8deg); box-shadow: 0 0 40px 5px rgba(var(--accent-blue-rgb),0.5), 0 0 20px 2px rgba(var(--accent-purple-rgb),0.4); border-image-source: var(--gradient-interactive); border-image-slice: 1; }
.step-number { font-size: 2.2rem; font-weight: 700; color: white; }
.step-title { font-size: 1.6rem; font-weight: 600; margin-bottom: calc(var(--spacing-unit) * 1.5); }
.step-description { color: var(--current-text-secondary); font-size: 1rem; }
.step-connector { width: 2px; height: calc(var(--spacing-unit) * 7); background: linear-gradient(to bottom, var(--accent-purple), var(--accent-blue), var(--accent-green-web3)); box-shadow: 0 0 8px rgba(var(--accent-purple-rgb),0.3); opacity: 0.7; }

/* --- DEEP DIVE SECTION (CORREGIDO) --- */
.deep-dive-feature {
    display: flex;
    flex-direction: column; 
    align-items: center;
    gap: calc(var(--spacing-unit) * 5);
    margin-bottom: calc(var(--spacing-unit) * 12);
    overflow: hidden; /* Evita que el parallax se desborde en móvil */
}
.deep-dive-feature:last-child { 
    margin-bottom: 0; 
}
.deep-dive-feature:hover {
    z-index: 2; /* Asegura que el hover esté por encima */
}
.deep-dive-feature-img-container {
    flex-basis: 45%;
    max-width: 500px;
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: var(--border-radius-lg);
    transition: transform var(--duration-slow) var(--ease-out-quad);
    line-height: 0;
    overflow: hidden;
    -webkit-mask-image: -webkit-radial-gradient(white, black);
    mask-image: radial-gradient(white, black);
}
.deep-dive-feature:hover .deep-dive-feature-img-container { 
    transform: scale(1.03); 
}
.parallax-img {
    width: 100%;
    height: 130%;
    object-fit: cover;
    transform: translateY(-15%);
    will-change: transform;
}
.deep-dive-img {
    width: 100%; 
    height: auto; 
    border-radius: var(--border-radius-md); 
    box-shadow: var(--shadow-medium); 
}
.deep-dive-feature-content { 
    flex-basis: 55%; 
    padding-left: 0;
    position: relative; /* Asegura que el texto esté por encima de la imagen */
    z-index: 1;
}
.deep-dive-feature-title { 
    font-size: clamp(1.8rem, 4.5vw, 2.2rem); 
    font-weight: 600; 
    margin-bottom: calc(var(--spacing-unit) * 2.5); 
    line-height: 1.3; 
}
.deep-dive-feature-title .gradient-text { 
    margin-right: var(--spacing-unit); 
    font-weight: 700; 
}
.deep-dive-feature-content p { 
    font-size: 1.05rem; 
    color: var(--current-text-secondary); 
    margin-bottom: calc(var(--spacing-unit) * 2); 
    line-height: 1.75; 
}
.deep-dive-feature-content p strong { 
    color: var(--current-text-primary); 
    font-weight: 600; 
}


/* --- TECHNOLOGY SECTION --- */
.tech-pillars-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: calc(var(--spacing-unit) * 4.5); margin-top: calc(var(--spacing-unit) * 5); }
.tech-pillar-card { text-align: center; padding: calc(var(--spacing-unit) * 3); border-radius: var(--border-radius-lg); transition: all var(--duration-medium) var(--ease-out-quad); border: 1px solid var(--current-glass-border); max-width: 340px; }
.tech-pillar-card:hover { transform: translateY(-8px); background-color: rgba(var(--accent-blue-rgb), 0.07); border-color: rgba(var(--accent-blue-rgb), 0.4); box-shadow: var(--shadow-medium); }
.tech-pillar-icon { height: calc(var(--spacing-unit) * 8); width: calc(var(--spacing-unit) * 8); margin: 0 auto calc(var(--spacing-unit) * 2.5); transition: transform 0.3s ease; }
.tech-pillar-card:hover .tech-pillar-icon { transform: scale(1.1); }
.tech-pillar-title { font-size: 1.55rem; font-weight: 600; margin-bottom: calc(var(--spacing-unit) * 1.5); color: var(--accent-blue); }
.tech-pillar-card:nth-child(even) .tech-pillar-title { color: var(--accent-purple); }
.tech-pillar-description { font-size: 1rem; color: var(--current-text-secondary); line-height: 1.65; }

/* --- USE CASES SECTION --- */
.use-cases-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: calc(var(--spacing-unit) * 4); }
.use-case-card { padding: calc(var(--spacing-unit) * 4); max-width: 420px; }
.use-case-title { font-size: 1.6rem; font-weight: 600; margin-bottom: calc(var(--spacing-unit) * 1.5); color: var(--accent-blue); transition: color 0.3s ease; }
.use-case-card:hover .use-case-title { color: var(--accent-green-web3); }
.use-case-description { color: var(--current-text-secondary); font-size: 1rem; }

/* --- DEVELOPERS SECTION --- */
.sdk-showcase { max-width: 800px; margin: 0 auto; padding: 2px; position: relative; border-radius: var(--border-radius-lg); margin-bottom: calc(var(--spacing-unit) * 7); }
.sdk-showcase::before { content: ""; position: absolute; inset: 0; border-radius: inherit; background: var(--gradient-interactive); background-size: 200% 200%; animation: gradient-flow 6s ease infinite; z-index: 0; }
.code-block { background-color: var(--current-code-bg); color: var(--current-code-text); padding: calc(var(--spacing-unit) * 3); border-radius: calc(var(--border-radius-lg) - 2px); overflow-x: auto; font-family: var(--font-monospace); font-size: 0.9rem; line-height: 1.65; white-space: pre-wrap; margin-top: calc(var(--spacing-unit) * 4); margin-bottom: calc(var(--spacing-unit) * 4); transition: background-color 0.3s ease, color 0.3s ease; border: 1px solid var(--current-glass-border); box-shadow: inset 0 2px 10px rgba(0,0,0,0.2); position: relative; z-index: 1; }
.sdk-cta-group { text-align: center; display: flex; justify-content: center; gap: calc(var(--spacing-unit) * 2.5); flex-wrap: wrap; position: relative; z-index: 1; }

/* --- VISION SECTION --- */
.vision-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: calc(var(--spacing-unit) * 5); text-align: center; }
.vision-quote { font-size: 1.6rem; font-style: italic; color: var(--current-text-primary); line-height: 1.45; border-left: 4px solid; border-image-source: var(--gradient-main); border-image-slice: 1; padding-left: calc(var(--spacing-unit) * 3); transition: transform var(--duration-medium) ease; text-align: left; max-width: 480px; }
.vision-quote:hover { transform: translateX(5px); }
.vision-quote p { margin: 0; }

/* --- FAQ SECTION --- */
.faq-list { max-width: 850px; margin: 0 auto; }
.faq-item { background-color: var(--current-bg-secondary); border-radius: var(--border-radius-md); margin-bottom: calc(var(--spacing-unit) * 1.5); border: 1px solid var(--current-glass-border); overflow: hidden; transition: all var(--duration-medium) ease; }
.faq-item:hover { border-color: rgba(var(--accent-blue-rgb), 0.4); background-color: rgba(var(--accent-blue-rgb), 0.05); }
.faq-question { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: calc(var(--spacing-unit) * 2.5) calc(var(--spacing-unit) * 3); background: none; border: none; color: var(--current-text-primary); font-size: 1.2rem; font-weight: 500; text-align: left; cursor: pointer; }
.faq-icon { width: 24px; height: 24px; transition: transform var(--duration-medium) var(--ease-out-back); flex-shrink: 0; }
.faq-item.active .faq-icon { transform: rotate(45deg); color: var(--accent-blue); }
.faq-answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows var(--duration-medium) var(--ease-in-out); }
.faq-item.active .faq-answer { grid-template-rows: 1fr; }
.faq-answer > div { overflow: hidden; }
.faq-answer p { padding: 0 calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 3); color: var(--current-text-secondary); line-height: 1.65; }

/* --- NEWSLETTER SECTION --- */
.newsletter-content { max-width: 700px; text-align: center; margin: 0 auto; }
.newsletter-form { display: flex; flex-direction: column; gap: calc(var(--spacing-unit) * 1.5); margin-top: calc(var(--spacing-unit) * 3.5); }
.newsletter-input { padding: calc(var(--spacing-unit) * 2); border-radius: var(--border-radius-md); border: 1px solid var(--current-glass-border); background-color: color-mix(in srgb, var(--current-bg-primary) 70%, transparent); color: var(--current-text-primary); font-size: 1.05rem; outline: none; transition: all var(--duration-medium) ease; }
.newsletter-input::placeholder { color: var(--current-text-secondary); opacity: 0.7; }
.newsletter-input:focus { border-color: var(--accent-blue); background-color: var(--current-bg-secondary); box-shadow: 0 0 0 3px rgba(var(--accent-blue-rgb), 0.2), var(--shadow-glow-blue); }

/* --- FOOTER --- */
.site-footer-main { background-color: var(--current-bg-secondary); padding: calc(var(--spacing-unit) * 7) 0; text-align: center; border-top: 1px solid var(--current-glass-border); position: relative; overflow: hidden; }
html[data-theme="dark"] .site-footer-main { background-color: #0A091A; }
.site-footer-main::before { content: ''; position: absolute; bottom: -150px; left: 50%; transform: translateX(-50%); width: 150%; max-width: 1500px; height: 300px; background: radial-gradient(ellipse, rgba(var(--accent-purple-rgb), 0.1), transparent 70%); pointer-events: none; }
.footer-logo .logo { margin-bottom: calc(var(--spacing-unit) * 2.5); justify-content: center; }
.footer-socials { display: flex; justify-content: center; gap: calc(var(--spacing-unit) * 3.5); margin-bottom: calc(var(--spacing-unit) * 3.5); }
.social-icon { height: calc(var(--spacing-unit) * 3); width: calc(var(--spacing-unit) * 3); color: var(--current-text-secondary); transition: all var(--duration-fast) ease; }
.social-icon:hover { color: var(--accent-blue); transform: scale(1.2); filter: drop-shadow(0 0 8px rgba(var(--accent-blue-rgb), 0.5)); }
.footer-nav { margin-bottom: calc(var(--spacing-unit) * 3.5); display: flex; justify-content: center; flex-wrap: wrap; gap: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 3.5); }
.footer-nav a { color: var(--current-text-secondary); font-size: 0.95rem; }
.footer-nav a:hover { color: var(--accent-blue); }
.footer-copyright { font-size: 0.9rem; color: var(--current-text-secondary); opacity: 0.8; }

/* --- ANIMATIONS --- */
@keyframes gradient-flow { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }
@keyframes float-bubble-1 { 0% { transform: translate(0, 0) scale(1); } 50% { transform: translate(-40px, 20px) scale(1.05); } 100% { transform: translate(0, 0) scale(1); } }
@keyframes float-bubble-2 { 0% { transform: translate(0, 0) scale(1); } 50% { transform: translate(30px, -25px) scale(0.95); } 100% { transform: translate(0, 0) scale(1); } }
@keyframes word-in { to { opacity: 1; transform: translateY(0) rotate(0); } }
@keyframes fade-in-up { to { opacity: 1; transform: translateY(0); } }
@keyframes slide-in-down { to { opacity: 1; transform: translateY(0); } }

/* --- SCROLL ANIMATION STYLES --- */
.animate-on-scroll { opacity: 0; transition: opacity var(--duration-slow) var(--ease-out-quad), transform var(--duration-slow) var(--ease-out-quad); }
.animate-on-scroll.is-visible { opacity: 1; transform: none; }
.animate-on-scroll[data-animation="fadeInUpSlight"] { transform: translateY(25px); }
.animate-on-scroll[data-animation="fadeInUp"] { transform: translateY(50px); }
.animate-on-scroll[data-animation="fadeInDown"] { transform: translateY(-50px); }
.animate-on-scroll[data-animation="fadeInLeft"] { transform: translateX(-50px); }
.animate-on-scroll[data-animation="fadeInRight"] { transform: translateX(50px); }
.animate-on-scroll[data-animation="scaleUp"] { transform: scale(0.9); }
.animate-on-scroll[data-animation="zoomIn"] { transform: scale(0.75); }
.animate-on-scroll[data-animation="growHeight"] { transform-origin: top; transform: scaleY(0); }
.animate-on-scroll[data-animation="growWidth"] { transform-origin: left; transform: scaleX(0); }

/* --- CUSTOM SCROLLBAR (Webkit) --- */
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--current-bg-primary); }
::-webkit-scrollbar-thumb { background-color: var(--current-bg-tertiary); border-radius: 10px; border: 3px solid var(--current-bg-primary); }
::-webkit-scrollbar-thumb:hover { background-color: var(--accent-blue); }

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

/* --- RESPONSIVE STYLES --- */
@media (min-width: 992px) {
    .deep-dive-feature { 
        flex-direction: row; 
        align-items: center; 
        text-align: left; 
        overflow: visible; /* Permite que el hover se expanda */
    }
    .deep-dive-feature.feature-reversed { flex-direction: row-reverse; }
    .deep-dive-feature-content { padding-left: calc(var(--spacing-unit) * 6); }
    .deep-dive-feature.feature-reversed .deep-dive-feature-content { padding-left: 0; padding-right: calc(var(--spacing-unit) * 6); }
}
@media (min-width: 768px) {
    .newsletter-form { flex-direction: row; }
    .newsletter-input { flex-grow: 1; }
    .steps-diagram { flex-direction: row; justify-content: space-between; align-items: flex-start; }
    .step-connector { width: auto; flex-grow: 1; height: 2px; margin: calc(var(--spacing-unit) * 5) var(--spacing-unit); max-width: 100px; }
    .step { flex: 1; }
    .main-nav { display: flex !important; } 
    .mobile-menu-toggle { display: none !important; }
    .mobile-menu { display: none !important; } 
    .header-container .theme-toggle-btn { display: flex !important; }
}
@media (max-width: 767px) {
    body { font-size: 1rem; }
    .main-nav { display: none; } 
    .mobile-menu-toggle { display: block; }
    .header-container .theme-toggle-btn { display: none !important; }
    .hero-headline { letter-spacing: -1.5px; font-size: clamp(2.5rem, 13vw, 3.5rem); }
    .hero-cta-group { flex-direction: column; align-items: center; }
    .challenge-grid, .benefits-grid, .use-cases-grid, .vision-grid, .tech-pillars-grid, .possibilities-grid, .explanation-grid { grid-template-columns: 1fr; }
    .challenge-card, .benefit-card, .use-case-card, .vision-quote, .tech-pillar-card, .possibility-card, .explanation-card { max-width: none; }
    .sdk-showcase { padding: 0; background: none; }
    .sdk-showcase::before { content: none; }
    .code-block { border-radius: var(--border-radius-lg); margin-left: 0; margin-right: 0; }
    .sdk-cta-group { flex-direction: column; }
    .deep-dive-feature { text-align: center; gap: calc(var(--spacing-unit) * 3); margin-bottom: calc(var(--spacing-unit) * 8); }
    .deep-dive-feature-content { padding-left: 0; padding-right: 0; }
    .steps-diagram { flex-direction: column; }
    .step-connector { display: block; width: 2px; height: calc(var(--spacing-unit) * 6); margin: calc(var(--spacing-unit) * 1.5) auto; }
}