:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a29bfe;
    --dark-bg: #0f0f1a;
    --darker-bg: #080810;
    --card-bg: #1e1e2e;
    --text-white: #ffffff;
    --text-gray: #b0b0c0;
    --border-color: #2d2d40;
    --shadow-sm: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-md: 0 10px 20px rgba(0,0,0,0.15);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.2);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --dark-bg: #f8f9fa;
    --darker-bg: #ffffff;
    --card-bg: #ffffff;
    --text-white: #212529;
    --text-gray: #6c757d;
    --border-color: #dee2e6;
    --shadow-sm: 0 4px 6px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.1);
}

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

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ================== NAVBAR FIJO SIEMPRE VISIBLE ================== */
.navbar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 9999 !important;
    backdrop-filter: blur(15px) !important;
    -webkit-backdrop-filter: blur(15px) !important;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1) !important;
    transition: all 0.3s ease !important;
    height: 80px;
    display: flex;
    align-items: center;
}

/* Modo oscuro */
[data-theme="dark"] .navbar {
    background-color: rgba(15, 15, 26, 0.95) !important;
    border-bottom: 1px solid rgba(255,255,255,0.1) !important;
}

[data-theme="dark"] .navbar-brand img {
    filter: brightness(0) invert(1) !important;
}

[data-theme="dark"] .nav-link,
[data-theme="dark"] .navbar-toggler-icon {
    color: #ffffff !important;
}

/* Modo claro */
[data-theme="light"] .navbar {
    background-color: rgba(255, 255, 255, 0.95) !important;
    border-bottom: 1px solid rgba(0,0,0,0.1) !important;
}

[data-theme="light"] .navbar-brand img {
    filter: none !important;
}

[data-theme="light"] .nav-link,
[data-theme="light"] .navbar-toggler-icon {
    color: #212529 !important;
}

/* Logo */
.navbar-brand img {
    height: 50px;
    transition: var(--transition);
}

/* Links */
.nav-link {
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: var(--transition);
    position: relative;
    padding: 8px 15px;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* Botón principal */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    padding: 14px 35px;
    font-weight: 600;
    letter-spacing: 0.5px;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.3);
    text-transform: uppercase;
    font-size: 0.9rem;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(108, 92, 231, 0.4);
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
}

/* ================== HERO SECTION CON ESPACIO PARA NAVBAR ================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: 
        radial-gradient(circle at top right, rgba(108, 92, 231, 0.15), transparent 50%),
        radial-gradient(circle at bottom left, rgba(162, 155, 254, 0.1), transparent 50%),
        linear-gradient(rgba(15, 15, 26, 0.85), rgba(15, 15, 26, 0.9)),
        url('../IMG/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    z-index: 1;
    padding-top: 120px !important; /* ESPACIO PARA EL NAVBAR FIJO */
}

[data-theme="light"] .hero-section {
    background: 
        radial-gradient(circle at top right, rgba(108, 92, 231, 0.05), transparent 50%),
        radial-gradient(circle at bottom left, rgba(162, 155, 254, 0.03), transparent 50%),
        linear-gradient(rgba(248, 249, 250, 0.9), rgba(248, 249, 250, 0.95)),
        url('../IMG/hero-bg-light.jpg');
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    letter-spacing: -1px;
}

[data-theme="light"] .hero-title {
    text-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    font-weight: 400;
}

/* ================== SECCIONES GENERALES ================== */
section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: 70px;
}

.section-title span {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-title h2 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.section-title p {
    font-size: 1.15rem;
    color: var(--text-gray);
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Cards & Service Items */
.card, .service-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 35px 30px;
    transition: var(--transition);
    height: 100%;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.card:hover, .service-item:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-item .icon {
    font-size: 2.8rem;
    color: var(--primary-color);
    margin-bottom: 25px;
    transition: var(--transition);
    display: inline-block;
}

.service-item:hover .icon {
    transform: scale(1.15) rotate(5deg);
}

.service-item h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 18px;
    color: var(--text-white);
    line-height: 1.3;
}

.service-item p {
    color: var(--text-gray);
    font-size: 1rem;
    margin-bottom: 25px;
    line-height: 1.6;
}

.btn-get-started {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 10px 25px;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
}

.btn-get-started:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Stats Section */
.stat-box {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px 25px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.stat-box:hover {
    transform: scale(1.08);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.stat-box h3 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 8px;
    line-height: 1;
}

.stat-box p {
    color: var(--text-gray);
    font-size: 1.1rem;
    font-weight: 500;
}

/* Testimonials Section */
.testimonial-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.testimonial-text {
    font-style: italic;
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 20px;
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
}

.testimonial-author-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 3px;
}

.testimonial-author-info p {
    font-size: 0.9rem;
    color: var(--text-gray);
}

/* Contact Form */
.form-control {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-white);
    border-radius: 12px;
    padding: 14px 18px;
    transition: var(--transition);
    font-size: 1rem;
}

.form-control:focus {
    background-color: var(--card-bg);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(108, 92, 231, 0.25);
    color: var(--text-white);
}

[data-theme="light"] .form-control {
    background-color: #ffffff;
    color: #212529;
}

[data-theme="light"] .form-control:focus {
    background-color: #ffffff;
    color: #212529;
}

.form-label {
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-white);
}

[data-theme="light"] .form-label {
    color: #212529;
}

/* Footer */
footer {
    background-color: var(--darker-bg);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 40px;
    text-align: center;
}

.footer-links {
    margin-bottom: 20px;
}

.footer-links a {
    color: var(--text-gray);
    margin: 0 15px;
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

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

.social-icons {
    margin: 20px 0;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    margin: 0 8px;
    color: var(--text-white);
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.copyright {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-top: 20px;
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 10000 !important;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 55px;
    height: 55px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.theme-toggle:hover {
    transform: rotate(180deg) scale(1.1);
    box-shadow: var(--shadow-lg);
}

.theme-toggle i {
    font-size: 1.4rem;
    color: var(--primary-color);
}

/* Responsive Adjustments */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.8rem;
    }
    
    section {
        padding: 70px 0;
    }
    
    .section-title h2 {
        font-size: 2.2rem;
    }
    
    .stat-box h3 {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .btn-primary {
        padding: 12px 28px;
        font-size: 0.85rem;
    }
    
    .stat-box h3 {
        font-size: 2.5rem;
    }
    
    .theme-toggle {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }

    .navbar {
        height: 70px;
    }

    .hero-section {
        padding-top: 100px !important;
    }
}

/* ================== NAVBAR TRANSPARENTE AL INICIO, SÓLIDO AL SCROLL ================== */
.navbar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 9999 !important;
    transition: all 0.4s ease !important;
    height: 80px;
    display: flex;
    align-items: center;
    background-color: transparent !important; /* Transparente al inicio */
    backdrop-filter: none !important;
    box-shadow: none !important;
    border-bottom: none !important;
}

/* Cuando se hace scroll, se vuelve sólido */
.navbar.scrolled {
    backdrop-filter: blur(15px) !important;
    -webkit-backdrop-filter: blur(15px) !important;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1) !important;
}

/* Modo oscuro: navbar oscuro al scroll */
[data-theme="dark"] .navbar.scrolled {
    background-color: rgba(15, 15, 26, 0.95) !important;
    border-bottom: 1px solid rgba(255,255,255,0.1) !important;
}

[data-theme="dark"] .navbar.scrolled .navbar-brand img {
    filter: brightness(0) invert(1) !important; /* Logo blanco */
}

[data-theme="dark"] .navbar.scrolled .nav-link,
[data-theme="dark"] .navbar.scrolled .navbar-toggler-icon {
    color: #ffffff !important;
}

/* Modo claro: navbar blanco al scroll */
[data-theme="light"] .navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95) !important;
    border-bottom: 1px solid rgba(0,0,0,0.1) !important;
}

[data-theme="light"] .navbar.scrolled .navbar-brand img {
    filter: none !important; /* Logo original (oscuro) */
}

[data-theme="light"] .navbar.scrolled .nav-link,
[data-theme="light"] .navbar.scrolled .navbar-toggler-icon {
    color: #212529 !important;
}

/* Logo siempre visible (ajustado según tema) */
.navbar-brand img {
    height: 50px;
    transition: var(--transition);
}

/* Links siempre visibles (blancos en dark, oscuros en light) */
.nav-link {
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: var(--transition);
    position: relative;
    padding: 8px 15px;
}

/* En modo oscuro, links blancos incluso sin scroll */
[data-theme="dark"] .nav-link {
    color: #ffffff !important;
}

/* En modo claro, links oscuros incluso sin scroll */
[data-theme="light"] .nav-link {
    color: #212529 !important;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* Navbar toggler icon también debe ser visible */
.navbar-toggler-icon {
    transition: var(--transition);
}

[data-theme="dark"] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

[data-theme="light"] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%280, 0, 0, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: 
        radial-gradient(circle at top right, rgba(108, 92, 231, 0.15), transparent 50%),
        radial-gradient(circle at bottom left, rgba(162, 155, 254, 0.1), transparent 50%),
        linear-gradient(rgba(15, 15, 26, 0.85), rgba(15, 15, 26, 0.9)),
        url('../MULTIMEDIA/ai2.gif');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    z-index: 1;
    padding-top: 120px !important; /* Espacio para el navbar fijo */
}

[data-theme="light"] .hero-section {
    background: 
        radial-gradient(circle at top right, rgba(108, 92, 231, 0.05), transparent 50%),
        radial-gradient(circle at bottom left, rgba(162, 155, 254, 0.03), transparent 50%),
        linear-gradient(rgba(248, 249, 250, 0.9), rgba(248, 249, 250, 0.95)),
        url('../MULTIMEDIA/ai2.gif');
}

/* ================== ESTILOS ESPECÍFICOS IA & HERO ================== */

/* Badge Gradiente para IA */
.bg-gradient-primary {
    background: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 100%);
}

/* Sombra brillante para el botón principal */
.shadow-glow {
    box-shadow: 0 0 20px rgba(108, 92, 231, 0.5);
    transition: all 0.3s ease;
}

.shadow-glow:hover {
    box-shadow: 0 0 30px rgba(108, 92, 231, 0.8);
    transform: translateY(-3px);
}

/* Texto pequeño mayúsculas espaciado */
.ls-1 {
    letter-spacing: 1px;
}

/* Iconos flotantes animados */
.floating-icons {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.float-icon {
    position: absolute;
    font-size: 4rem;
    opacity: 0.15;
    animation: floatAI 8s ease-in-out infinite;
    filter: blur(1px);
}

.float-1 { top: 10%; left: 5%; animation-delay: 0s; }
.float-2 { top: 20%; right: 10%; animation-delay: 2s; }
.float-3 { bottom: 15%; left: 15%; animation-delay: 4s; }
.float-4 { bottom: 25%; right: 5%; animation-delay: 6s; }

@keyframes floatAI {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(10deg); }
}

/* Ajustes para modo claro en badges oscuros */
[data-theme="light"] .bg-dark.bg-opacity-50 {
    background-color: rgba(0,0,0,0.05) !important;
    color: #212529 !important;
    border-color: rgba(0,0,0,0.1) !important;
}

[data-theme="light"] .text-gray {
    color: #6c757d;
}


/* ================== SECCIÓN ABOUT MEJORADA ================== */

.ls-2 {
    letter-spacing: 2px;
}

.lh-sm {
    line-height: 1.2;
}

.icon-box {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Animación suave para las tarjetas flotantes */
.card.position-absolute {
    transition: transform 0.3s ease;
}

.card.position-absolute:hover {
    transform: translateY(-5px) !important;
    z-index: 10;
}

/* Ajustes para modo claro */
[data-theme="light"] .bg-dark.border-secondary {
    background-color: #ffffff !important;
    border-color: #dee2e6 !important;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05) !important;
}

[data-theme="light"] .text-gray {
    color: #6c757d;
}

[data-theme="light"] .text-white {
    color: #212529 !important;
}

[data-theme="light"] .bg-primary.bg-opacity-25 {
    background-color: rgba(108, 92, 231, 0.1) !important;
}

[data-theme="light"] .bg-info.bg-opacity-25 {
    background-color: rgba(13, 202, 240, 0.1) !important;
}

/* ================== SERVICIOS GENERALES MEJORADOS ================== */

.bg-card {
    background-color: var(--card-bg);
    transition: all 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
    border-color: var(--primary-color) !important;
}

.icon-wrapper {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.hover-lift:hover .icon-wrapper {
    transform: scale(1.1);
}

/* Ajustes para Modo Claro */
[data-theme="light"] .bg-card {
    background-color: #ffffff;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
}

[data-theme="light"] .hover-lift:hover {
    box-shadow: 0 15px 30px rgba(0,0,0,0.08);
}

[data-theme="light"] .text-gray {
    color: #6c757d;
}

[data-theme="light"] .text-white {
    color: #212529 !important;
}

/* Colores de fondo para iconos en modo claro */
[data-theme="light"] .bg-primary.bg-opacity-10 { background-color: rgba(108, 92, 231, 0.1) !important; }
[data-theme="light"] .bg-success.bg-opacity-10 { background-color: rgba(25, 135, 84, 0.1) !important; }
[data-theme="light"] .bg-danger.bg-opacity-10 { background-color: rgba(220, 53, 69, 0.1) !important; }
[data-theme="light"] .bg-info.bg-opacity-10 { background-color: rgba(13, 202, 240, 0.1) !important; }

/* ================== SECCIÓN STATS MEJORADA ================== */

.stat-card {
    background-color: var(--card-bg);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.hover-glow:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(108, 92, 231, 0.15);
    border-color: var(--primary-color) !important;
}

.hover-glow:hover .icon-wrapper {
    transform: scale(1.1) rotate(5deg);
}

.icon-wrapper {
    transition: all 0.3s ease;
}

/* Ajustes para Modo Claro */
[data-theme="light"] .stat-card {
    background-color: #ffffff;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
}

[data-theme="light"] .hover-glow:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

[data-theme="light"] .text-gray {
    color: #6c757d;
}

[data-theme="light"] .text-white {
    color: #212529 !important;
}

/* Colores de fondo para iconos en modo claro */
[data-theme="light"] .bg-primary.bg-opacity-10 { background-color: rgba(108, 92, 231, 0.1) !important; }
[data-theme="light"] .bg-success.bg-opacity-10 { background-color: rgba(25, 135, 84, 0.1) !important; }
[data-theme="light"] .bg-info.bg-opacity-10 { background-color: rgba(13, 202, 240, 0.1) !important; }
[data-theme="light"] .bg-warning.bg-opacity-10 { background-color: rgba(255, 193, 7, 0.1) !important; }


/* ================== TESTIMONIOS Y FOOTER MEJORADOS ================== */

.hover-primary:hover {
    color: var(--primary-color) !important;
}

.social-icon {
    width: 40px;
    height: 40px;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background-color: var(--primary-color) !important;
    color: white !important;
    border-color: var(--primary-color) !important;
    transform: translateY(-3px);
}

.filter-invert-light {
    filter: brightness(0) invert(1);
}

[data-theme="light"] .filter-invert-light {
    filter: none;
}

[data-theme="light"] .bg-dark.text-white {
    color: #212529 !important;
}

[data-theme="light"] .bg-dark.border-secondary {
    background-color: #ffffff !important;
    border-color: #dee2e6 !important;
}