/* ==========================================================================
   ANALITYPRO - DISEÑO MODERNO 2024
   ========================================================================== */

/* 1. VARIABLES (Paleta de colores y fuentes) */
:root {
    --primary: #2563EB;       /* Azul tecnológico */
    --primary-dark: #1E40AF;  /* Azul oscuro para hovers */
    --secondary: #06B6D4;     /* Cian para acentos */
    --dark: #0F172A;          /* Color de texto principal */
    --gray: #64748B;          /* Color de texto secundario */
    --light-gray: #F1F5F9;    /* Fondos claros */
    --white: #FFFFFF;
    --whatsapp: #25D366;
    --transition: all 0.3s ease;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
}

/* 2. RESET Y BASES */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth; /* Desplazamiento suave al hacer clic en el menú */
    font-size: 16px;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--dark);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 3. HEADER Y NAVEGACIÓN */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    z-index: 1000;
    padding: 15px 0;
}

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

.logo img {
    height: 50px; /* Ajusta según el tamaño de tu logo */
    width: auto;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--gray);
    position: relative;
    font-size: 0.95rem;
}

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

/* Línea animada debajo del menú */
.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

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

.btn-nav {
    background-color: var(--primary);
    color: var(--white) !important;
    padding: 10px 20px !important;
    border-radius: 8px;
}

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

.btn-nav::after {
    display: none !important;
}

/* Menú Hamburguesa (Oculto en PC) */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark);
    cursor: pointer;
}

/* 4. HERO (INICIO) */
.hero {
    margin-top: 80px; /* Empuja para abajo por el header fijo */
    background: linear-gradient(135deg, var(--dark) 0%, #1E3A8A 100%);
    color: var(--white);
    padding: 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* Efecto de fondo decorativo sutil en el Hero */
.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.1;
    top: -200px;
    right: -200px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero h1 span {
    color: var(--secondary);
}

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 40px auto;
    color: #CBD5E1;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* 5. BOTONES GENERALES */
.btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.3);
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--dark);
}

.btn-whatsapp {
    background-color: var(--whatsapp);
    color: var(--white);
    padding: 15px 25px;
    border-radius: 8px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
}

.btn-whatsapp:hover {
    background-color: #128C7E;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.3);
}

/* 6. SECCIONES GENERALES */
.section-padding {
    padding: 100px 0;
}

.bg-light {
    background-color: var(--light-gray);
}

.section-header {
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark);
    margin-bottom: 15px;
    font-weight: 800;
}

.section-header p {
    color: var(--gray);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* 7. GRIDS (CSS Grid nativo) */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.grid-2-contact {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.grid-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* 8. CARDS (Tarjetas) */
.card-feature, .card-service {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid #E2E8F0;
}

.card-feature:hover, .card-service:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.card-feature i, .card-service .icon-service i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.card-feature h3, .card-service h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.card-feature p, .card-service p {
    color: var(--gray);
    font-size: 0.95rem;
}

.card-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    position: relative;
}

.card-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

.card-image:hover img {
    transform: scale(1.05);
}

.card-image h4 {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.8);
    color: var(--white);
    padding: 15px;
    text-align: center;
    margin: 0;
    font-size: 1.1rem;
}

/* 9. GALERÍA (ALIADOS) */
.g-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 16/9; /* Mantiene proporción cuadrada o rectangular */
    cursor: pointer;
}

.g-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.g-item:hover img {
    transform: scale(1.1);
}

.overlay-g {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 20px;
    opacity: 0;
    transition: var(--transition);
}

.g-item:hover .overlay-g {
    opacity: 1;
}

.overlay-g span {
    color: var(--white);
    font-weight: 600;
    font-size: 1.1rem;
}

/* 10. CONTACTO */
.contact-info h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: var(--dark);
}

.contact-info p {
    color: var(--gray);
    margin-bottom: 30px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-details li {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.1rem;
    color: var(--dark);
}

.contact-details i {
    color: var(--primary);
    font-size: 1.2rem;
    width: 20px;
    text-align: center;
}

/* Formulario */
.contact-form-wrapper {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #CBD5E1;
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--light-gray);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background-color: var(--white);
}

.btn-full {
    width: 100%;
    font-size: 1.1rem;
}

/* 11. FOOTER */
.footer {
    background-color: var(--dark);
    color: #94A3B8;
    padding: 30px 0;
    text-align: center;
}

/* ==========================================================================
    RESPONSIVE DISEÑO (Tablets y Móviles)
   ========================================================================== */

@media (max-width: 992px) {
    .grid-3, .grid-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    /* Menú Móvil */
    .menu-toggle {
        display: block;
    }

    .navbar {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
    }

    .navbar.active {
        max-height: 400px; /* Se expande */
    }

    .nav-links {
        flex-direction: column;
        padding: 20px;
        gap: 15px;
    }

    .btn-nav {
        text-align: center;
    }

    /* Grids a 1 columna */
    .grid-3, .grid-2-contact, .grid-gallery {
        grid-template-columns: 1fr;
    }

    /* Tipografía móvil */
    .hero {
        padding: 80px 0;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }

    .section-padding {
        padding: 60px 0;
    }

    .section-header h2 {
        font-size: 2rem;
    }
}