/* 
   Nexazagency.online - Estilos Premium
   Estilo: Modern Corporate Dark Mode + Neo-Brutalismo Sofisticado
*/

/* -------------------------------------------------------------
   1. IMPORTACIÓN DE FUENTES & CONFIGURACIÓN
   ------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    /* Paleta de Colores (Diseño Corporativo Oscuro Futurista) */
    --bg-primary: #0A0A0A;      /* Negro Carbón Profundo */
    --bg-secondary: #121212;    /* Gris Oscuro Corporativo */
    --bg-card: #1A1A1A;         /* Gris de Tarjeta Premium */
    --accent-neon: #00FF9D;     /* Verde Neón Esmeralda */
    --accent-blue: #00E5FF;     /* Azul Eléctrico Tecnológico */
    --text-primary: #FFFFFF;    /* Blanco Puro */
    --text-secondary: #B0B0B0;  /* Gris Claro para Lectura */
    --text-muted: #666666;      /* Gris Muted */
    
    /* Neo-Brutalismo & Glassmorphic variables */
    --border-color: rgba(255, 255, 255, 0.08);
    --border-neon-fade: rgba(0, 255, 157, 0.15);
    --border-blue-fade: rgba(0, 229, 255, 0.15);
    --neon-glow: 0px 0px 20px rgba(0, 255, 157, 0.35);
    --blue-glow: 0px 0px 20px rgba(0, 229, 255, 0.35);
    
    /* Fuentes */
    --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Transiciones */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
}

/* Reseteo y Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
    outline: none;
}

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

/* Barra de Scroll Personalizada */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: #222222;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-neon);
    box-shadow: 0 0 5px var(--accent-neon);
}

/* -------------------------------------------------------------
   2. CLASES DE UTILIDAD & ANIMACIONES
   ------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-gradient {
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-blue) 70%, var(--accent-neon) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-neon {
    color: var(--accent-neon);
    text-shadow: 0 0 10px rgba(0, 255, 157, 0.3);
}

/* Animación de entrada por scroll */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

/* Retrasos de animación en cascada */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }

/* -------------------------------------------------------------
   3. HEADER & NAVEGACIÓN
   ------------------------------------------------------------- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

header.scrolled {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-neon-fade);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    transition: var(--transition-smooth);
}

header.scrolled .nav-wrapper {
    height: 60px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-neon);
    border-radius: 50%;
    display: inline-block;
    box-shadow: var(--neon-glow);
}

.nav-menu {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    position: relative;
    padding: 8px 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-neon);
    transition: var(--transition-fast);
}

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

.nav-btn {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 4px;
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.nav-btn:hover {
    border-color: var(--accent-neon);
    box-shadow: var(--neon-glow);
    background-color: rgba(0, 255, 157, 0.05);
}

/* Menú móvil */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    background: none;
    border: none;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-fast);
}

/* -------------------------------------------------------------
   4. HERO SECTION
   ------------------------------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 100px;
    overflow: hidden;
}

/* Fondo decorativo futurista */
.hero-glow {
    position: absolute;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, rgba(0, 255, 157, 0.08) 0%, rgba(0, 229, 255, 0.05) 50%, rgba(0,0,0,0) 75%);
    top: 10%;
    right: -10%;
    z-index: 1;
    filter: blur(40px);
    pointer-events: none;
}

.hero-glow-2 {
    position: absolute;
    width: 30vw;
    height: 30vw;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.08) 0%, rgba(0, 255, 157, 0) 60%);
    bottom: -10%;
    left: -10%;
    z-index: 1;
    filter: blur(40px);
    pointer-events: none;
}

.hero-grid-bg {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 255, 157, 0.05);
    border: 1px solid var(--border-neon-fade);
    padding: 6px 16px;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 500;
    color: var(--accent-neon);
    margin-bottom: 24px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(36px, 6vw, 68px);
    line-height: 1.1;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

/* Efecto de máquina de escribir dinámico */
.typewriter-container {
    display: inline-block;
    position: relative;
    min-width: 250px;
}
.typewriter-text {
    color: var(--accent-neon);
    position: relative;
    border-right: 3px solid var(--accent-neon);
    animation: blink 0.75s step-end infinite;
    white-space: nowrap;
}

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

.hero p {
    font-size: clamp(16px, 2vw, 19px);
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 620px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-primary {
    background-color: var(--accent-neon);
    color: var(--bg-primary);
    border: 1px solid var(--accent-neon);
    padding: 16px 32px;
    border-radius: 4px;
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition-smooth);
    box-shadow: 4px 4px 0px var(--text-primary); /* Neo-Brutalist touch */
}

.btn-primary:hover {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--accent-blue);
    background-color: #05ff95;
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 16px 32px;
    border-radius: 4px;
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-secondary:hover {
    border-color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
}

/* -------------------------------------------------------------
   5. NOSOTROS / QUIÉNES SOMOS
   ------------------------------------------------------------- */
section {
    padding: 120px 0;
    position: relative;
}

.section-tag {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-neon);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 700;
    margin-bottom: 48px;
    max-width: 650px;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 80px;
    align-items: center;
}

.about-text p {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 32px;
}

.about-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.about-feature-icon {
    width: 44px;
    height: 44px;
    background: rgba(0, 229, 255, 0.06);
    border: 1px solid var(--border-blue-fade);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
    flex-shrink: 0;
}

.about-feature-content h4 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.about-feature-content p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 0;
}

.about-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-box {
    width: 100%;
    aspect-ratio: 1;
    max-width: 420px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 12px 12px 0px rgba(0, 255, 157, 0.1);
    transition: var(--transition-smooth);
}

.visual-box:hover {
    border-color: var(--accent-neon);
    box-shadow: 16px 16px 0px rgba(0, 255, 157, 0.2);
}

.visual-glowing-core {
    position: absolute;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.25) 0%, rgba(0, 255, 157, 0) 70%);
    filter: blur(20px);
    animation: rotateGlow 10s linear infinite;
}

@keyframes rotateGlow {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
    100% { transform: rotate(360deg) scale(1); }
}

.visual-interface {
    position: absolute;
    width: 80%;
    height: 80%;
    border: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(18, 18, 18, 0.7);
    backdrop-filter: blur(8px);
    border-radius: 8px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.interface-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 12px;
}

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

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
}
.dot:nth-child(1) { background: #FF5F56; }
.dot:nth-child(2) { background: #FFBD2E; }
.dot:nth-child(3) { background: #27C93F; }

.interface-middle {
    margin: 20px 0;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.interface-line {
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    width: 100%;
}
.interface-line.short { width: 60%; }
.interface-line.accent { 
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-neon)); 
    width: 85%;
}

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

.interface-kpi {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-neon);
}

.interface-kpi span {
    font-size: 12px;
    color: var(--text-muted);
    display: block;
    font-family: var(--font-body);
    font-weight: 400;
}

/* -------------------------------------------------------------
   6. SERVICIOS
   ------------------------------------------------------------- */
.services-section {
    background-color: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 40px 30px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 255, 157, 0.03) 0%, rgba(0, 229, 255, 0.03) 100%);
    opacity: 0;
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-neon);
    box-shadow: 0 10px 30px rgba(0, 255, 157, 0.05), 4px 4px 0px var(--accent-neon); /* Sophisticated brutalism shadow */
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-neon);
    margin-bottom: 28px;
    transition: var(--transition-smooth);
    position: relative;
    z-index: 2;
}

.service-card:hover .service-icon {
    background: rgba(0, 255, 157, 0.05);
    border-color: var(--accent-neon);
    color: var(--accent-neon);
    box-shadow: var(--neon-glow);
}

.service-title {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    z-index: 2;
}

.service-desc {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    position: relative;
    z-index: 2;
}

.service-link {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: relative;
    z-index: 2;
    transition: var(--transition-fast);
}

.service-link svg {
    transition: var(--transition-fast);
}

.service-card:hover .service-link {
    color: var(--accent-neon);
}

.service-card:hover .service-link svg {
    transform: translateX(4px);
}

/* -------------------------------------------------------------
   7. SECCIÓN KPIs / RESULTADOS
   ------------------------------------------------------------- */
.kpi-section {
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    text-align: center;
}

.kpi-item {
    padding: 30px 20px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.03);
    background: rgba(255, 255, 255, 0.01);
}

.kpi-number {
    font-family: var(--font-heading);
    font-size: clamp(40px, 5vw, 60px);
    font-weight: 700;
    line-height: 1;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: block;
}

.kpi-number.highlight-neon {
    color: var(--accent-neon);
    text-shadow: 0 0 15px rgba(0, 255, 157, 0.2);
}

.kpi-number.highlight-blue {
    color: var(--accent-blue);
    text-shadow: 0 0 15px rgba(0, 229, 255, 0.2);
}

.kpi-label {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.kpi-sub {
    font-size: 13px;
    color: var(--text-muted);
}

/* -------------------------------------------------------------
   8. BLOG
   ------------------------------------------------------------- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.blog-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.blog-card:hover {
    border-color: var(--accent-blue);
    box-shadow: 0 10px 30px rgba(0, 229, 255, 0.03), 4px 4px 0px var(--accent-blue);
}

.blog-img-placeholder {
    width: 100%;
    aspect-ratio: 16/10;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, #1c1c1c 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
}

.blog-card:hover .blog-img-placeholder::after {
    transform: scale(1.1);
}

/* Patrón abstracto futurista de fondo de imagen */
.blog-img-placeholder::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 30% 20%, rgba(0, 229, 255, 0.15) 0%, transparent 60%);
    transition: var(--transition-smooth);
}

.blog-img-placeholder svg {
    color: var(--text-muted);
    opacity: 0.5;
    transition: var(--transition-smooth);
    z-index: 2;
}

.blog-card:hover .blog-img-placeholder svg {
    color: var(--accent-blue);
    opacity: 1;
    transform: scale(1.1);
}

.blog-tag {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 11px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 3;
}

.blog-content {
    padding: 30px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-meta {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: flex;
    gap: 16px;
}

.blog-title {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.4;
    transition: var(--transition-fast);
}

.blog-card:hover .blog-title {
    color: var(--accent-blue);
}

.blog-title a {
    color: inherit;
    text-decoration: none;
}

.blog-excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.blog-link {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    color: var(--text-primary);
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
}

.blog-card:hover .blog-link {
    color: var(--accent-blue);
}

.blog-card:hover .blog-link svg {
    transform: translateX(4px);
}

.blog-link svg {
    transition: var(--transition-fast);
}

/* -------------------------------------------------------------
   9. CONTACTO
   ------------------------------------------------------------- */
.contact-section {
    background-color: var(--bg-secondary);
    position: relative;
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 80px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contact-channels {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-top: 40px;
}

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

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-neon);
    flex-shrink: 0;
}

.contact-detail h5 {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-detail p {
    font-size: 14px;
    color: var(--text-secondary);
}

.contact-detail a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

.contact-detail a:hover {
    color: var(--accent-neon);
}

/* Formulario minimalista sofisticado con etiquetas flotantes */
.contact-form-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 50px;
    position: relative;
}

.form-group {
    position: relative;
    margin-bottom: 32px;
}

.form-input {
    width: 100%;
    padding: 12px 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    transition: var(--transition-fast);
}

.form-label {
    position: absolute;
    top: 12px;
    left: 0;
    font-size: 15px;
    color: var(--text-muted);
    pointer-events: none;
    transition: var(--transition-fast);
}

/* Efectos al enfocar o rellenar input */
.form-input:focus {
    border-bottom-color: var(--accent-neon);
}

.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
    top: -12px;
    font-size: 12px;
    color: var(--accent-neon);
}

/* Validación visual inteligente */
.form-input.is-valid {
    border-bottom-color: #27C93F;
}

.form-input.is-invalid {
    border-bottom-color: #FF5F56;
}

.form-error {
    font-size: 11px;
    color: #FF5F56;
    margin-top: 4px;
    display: none;
}

.form-input.is-invalid ~ .form-error {
    display: block;
}

textarea.form-input {
    min-height: 100px;
    resize: none;
}

.form-submit-btn {
    width: 100%;
}

/* Feedback de Éxito Interactivo */
.form-success-overlay {
    position: absolute;
    inset: 0;
    background: var(--bg-card);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px;
    opacity: 0;
    pointer-events: none;
    transform: scale(0.95);
    transition: var(--transition-smooth);
    z-index: 10;
}

.form-success-overlay.active {
    opacity: 1;
    pointer-events: auto;
    transform: scale(1);
}

.success-icon-wrapper {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(0, 255, 157, 0.05);
    border: 2px solid var(--accent-neon);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-neon);
    margin-bottom: 24px;
    box-shadow: var(--neon-glow);
    animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
    0% { box-shadow: 0 0 0 0 rgba(0, 255, 157, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(0, 255, 157, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 255, 157, 0); }
}

.form-success-overlay h3 {
    font-family: var(--font-heading);
    font-size: 24px;
    margin-bottom: 12px;
}

.form-success-overlay p {
    color: var(--text-secondary);
    font-size: 15px;
    max-width: 320px;
}

/* -------------------------------------------------------------
   10. FOOTER
   ------------------------------------------------------------- */
footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 40px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 16px;
    margin-bottom: 24px;
    max-width: 280px;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 38px;
    height: 38px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.social-link:hover {
    color: var(--accent-neon);
    border-color: var(--accent-neon);
    transform: translateY(-3px);
}

.footer-col h6 {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-neon);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-legal-links {
    display: flex;
    gap: 24px;
}

.footer-legal-links a {
    font-size: 13px;
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-legal-links a:hover {
    color: var(--text-primary);
}

/* -------------------------------------------------------------
   11. ADAPTABILIDAD (RESPONSIVE)
   ------------------------------------------------------------- */
@media (max-width: 992px) {
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-visual {
        order: -1; /* Muestra el gráfico animado arriba en mobile */
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    section {
        padding: 80px 0;
    }
    
    header {
        padding: 16px 0;
    }
    
    .nav-wrapper {
        height: auto;
    }
    
    .mobile-toggle {
        display: flex;
        z-index: 1001;
    }
    
    /* Mostrar menú móvil overlay */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--bg-secondary);
        border-left: 1px solid var(--border-color);
        padding: 100px 40px;
        flex-direction: column;
        gap: 30px;
        transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 1000;
        box-shadow: -10px 0px 40px rgba(0,0,0,0.8);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu.active ~ .mobile-toggle span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 6px);
    }
    
    .nav-menu.active ~ .mobile-toggle span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-menu.active ~ .mobile-toggle span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -7px);
    }
    
    .nav-btn {
        width: 100%;
        text-align: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-container {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .success-icon-wrapper {
        width: 60px;
        height: 60px;
        margin-bottom: 16px;
    }
}