/* ===================================
   BETATUN - Estilos Industriales
   =================================== */

/* === Variables CSS === */
:root {
    /* Colores Principales - Estilo Industrial */
    --primary-color: #FF6B35;
    --secondary-color: #F7931E;
    --dark-bg: #1a1a1a;
    --dark-gray: #2d2d2d;
    --medium-gray: #3d3d3d;
    --light-gray: #cccccc;
    --white: #ffffff;
    --warning-yellow: #FFC107;
    
    /* Tipografía */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: 'Arial Black', Arial, sans-serif;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.2);
    
    /* Transiciones */
    --transition: all 0.3s ease;
}

/* === Reset y Base === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

/* === Tipografía === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 900;
    line-height: 1.2;
    color: var(--dark-bg);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
}

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

a:hover {
    color: var(--secondary-color);
}

/* === Container === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* === Navbar === */
.navbar {
    background-color: var(--dark-bg);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    border-bottom: 3px solid var(--primary-color);
}

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

.nav-brand a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--white);
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: 2px;
}

.brand-icon {
    font-size: 2rem;
    color: var(--warning-yellow);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--white);
    margin: 3px 0;
    transition: var(--transition);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--white);
    font-weight: 600;
    padding: 0.5rem 1rem;
    transition: var(--transition);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    position: relative;
}

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

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

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

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: 2px;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    font-size: 0.9rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: #ff8159;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

.btn-light {
    background-color: var(--white);
    color: var(--dark-bg);
}

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

.btn-block {
    display: block;
    width: 100%;
}

.btn-icon {
    margin-right: 0.5rem;
}

/* === Hero Section con Carrusel === */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
    padding: var(--spacing-xl) 0;
    overflow: hidden;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    z-index: 0;
}

.hero-slide.active {
    opacity: 1;
    z-index: 1;
}

/* Fondo por defecto si no hay imagen */
.hero-slide:not([style*="background-image"]) {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--medium-gray) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(255, 107, 53, 0.05) 10px,
            rgba(255, 107, 53, 0.05) 20px
        );
    z-index: 2;
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 3;
}

/* Controles del Carrusel */
.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 107, 53, 0.8);
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    font-size: 2rem;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s;
    border-radius: 4px;
}

.carousel-control:hover {
    background: rgba(255, 107, 53, 1);
    transform: translateY(-50%) scale(1.1);
}

.carousel-control.prev {
    left: 2rem;
}

.carousel-control.next {
    right: 2rem;
}

/* Indicadores del Carrusel */
.carousel-indicators {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.carousel-indicators .indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid white;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s;
}

.carousel-indicators .indicator.active,
.carousel-indicators .indicator:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: scale(1.2);
}

/* Footer Social */
.footer-social {
    margin-top: 1rem;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.social-links a {
    color: var(--light-gray);
    padding: 0.25rem 0;
}

.hero-title {
    font-size: 4rem;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    text-shadow: 3px 3px 6px rgba(0,0,0,0.5);
    letter-spacing: 8px;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--warning-yellow);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--light-gray);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* === Sections === */
section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-bg);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* === Services Grid === */
.services-preview {
    background-color: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.service-card {
    background-color: #f9f9f9;
    padding: var(--spacing-md);
    border-radius: 4px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
    border-left: 4px solid var(--primary-color);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-bg);
}

.service-card p {
    color: #666;
    line-height: 1.8;
}

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

/* === Why Us Section === */
.why-us {
    background: linear-gradient(135deg, var(--dark-gray) 0%, var(--dark-bg) 100%);
    color: var(--white);
}

.why-us .section-title {
    color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.feature-item {
    padding: var(--spacing-md);
    background-color: rgba(255,255,255,0.05);
    border-radius: 4px;
    border-left: 4px solid var(--warning-yellow);
}

.feature-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.feature-item h3 {
    color: var(--white);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-item p {
    color: var(--light-gray);
}

/* === CTA Section === */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
}

/* === Page Header === */
.page-header {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--medium-gray) 100%);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-xl) 0;
    border-bottom: 4px solid var(--primary-color);
}

.page-header h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    font-size: 1.2rem;
    color: var(--light-gray);
}

/* === Services Detailed === */
.services-detailed {
    background-color: var(--white);
}

.service-detail {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: #f9f9f9;
    border-radius: 4px;
    border-left: 6px solid var(--primary-color);
}

.service-detail-content {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.service-detail-icon {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    background-color: var(--white);
    border-radius: 4px;
    box-shadow: var(--shadow-md);
}

.service-detail-text h2 {
    margin-bottom: var(--spacing-sm);
}

.service-detail-text ul {
    list-style: none;
    padding-left: 0;
}

.service-detail-text li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
}

.service-detail-text li::before {
    content: '⚡';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.service-detail-text strong {
    color: var(--dark-bg);
}

.service-detail-reverse .service-detail-content {
    flex-direction: row-reverse;
}

/* === Sectors === */
.sectors {
    background-color: #f5f5f5;
}

.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.sector-card {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: 4px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
}

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

.sector-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

/* === Contact Section === */
.contact-section {
    background-color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
}

.contact-info h2,
.contact-form-wrapper h2 {
    margin-bottom: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background-color: #f9f9f9;
    border-radius: 4px;
    border-left: 4px solid var(--primary-color);
}

.contact-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.contact-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}

.contact-item p {
    margin-bottom: 0.2rem;
}

.emergency {
    color: var(--primary-color);
    font-weight: 700;
}

.contact-cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: var(--spacing-md);
    border-radius: 4px;
    color: var(--white);
    text-align: center;
    margin-top: var(--spacing-md);
}

.contact-cta h3 {
    color: var(--white);
}

/* === Forms === */
.contact-form-wrapper {
    background-color: #f9f9f9;
    padding: var(--spacing-lg);
    border-radius: 4px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-bg);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #ddd;
    border-radius: 4px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-note {
    font-size: 0.85rem;
    color: #666;
    margin-top: var(--spacing-sm);
    text-align: center;
}

/* === Alerts === */
.alert {
    padding: var(--spacing-sm);
    border-radius: 4px;
    margin-bottom: var(--spacing-md);
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid #28a745;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid #dc3545;
}

/* === About Section === */
.about-section {
    background-color: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text {
    line-height: 1.8;
}

.about-text h2 {
    margin-bottom: var(--spacing-md);
}

.about-text p {
    margin-bottom: var(--spacing-sm);
    color: #555;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-placeholder {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, var(--medium-gray) 0%, var(--dark-bg) 100%);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--warning-yellow);
    box-shadow: var(--shadow-lg);
}

/* === Mission & Values === */
.mission-values {
    background-color: #f5f5f5;
}

.mv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.mv-card {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: 4px;
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--primary-color);
}

.mv-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.value-item {
    background-color: var(--white);
    padding: var(--spacing-sm);
    border-radius: 4px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.value-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.value-icon {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 900;
}

.value-item h4 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.value-item p {
    font-size: 0.9rem;
    color: #666;
}

/* === Commitment Section === */
.commitment-section {
    background-color: var(--white);
}

.commitment-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.commitment-item {
    padding: var(--spacing-md);
    background-color: #f9f9f9;
    border-radius: 4px;
    border-left: 4px solid var(--warning-yellow);
}

.commitment-item h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
}

/* === Future Section === */
.future-section {
    background-color: #f5f5f5;
}

.future-services {
    max-width: 800px;
    margin: var(--spacing-md) auto 0;
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: 4px;
    box-shadow: var(--shadow-sm);
}

.future-services ul {
    list-style-position: inside;
    margin-top: var(--spacing-sm);
}

.future-services li {
    padding: 0.3rem 0;
    color: #555;
}

/* === Footer === */
.footer {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3,
.footer-section h4 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.footer-section h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-section p {
    color: var(--light-gray);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--light-gray);
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-contact span {
    color: var(--warning-yellow);
}

.footer-bottom {
    border-top: 2px solid var(--medium-gray);
    padding-top: var(--spacing-sm);
    text-align: center;
    color: var(--light-gray);
}

.footer-note {
    font-size: 0.9rem;
    color: var(--light-gray);
}

/* === Responsive Design === */
@media (max-width: 968px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--dark-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-md) 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-links {
        flex-direction: column;
        width: 100%;
    }
    
    .nav-cta {
        margin-top: var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .contact-grid,
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .service-detail-content {
        flex-direction: column !important;
        text-align: center;
    }
    
    .service-detail-icon {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-title {
        font-size: 2rem;
        letter-spacing: 3px;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .services-grid,
    .features-grid,
    .sectors-grid,
    .values-grid,
    .commitment-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-md: 1rem;
        --spacing-lg: 2rem;
        --spacing-xl: 2.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        min-height: 400px;
    }
}

/* === Utilities === */
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }