/* ===================================
   GRUPO EMEX - Estilos Principales
   Materiales y Maquinaria para Construcción
   =================================== */

/* === FONTS === */
@font-face {
    font-family: 'Raleway';
    src: url('../fonts/Raleway-VariableFont_wght.ttf') format('truetype');
    font-weight: 100 900;
    font-style: normal;
}

@font-face {
    font-family: 'Raleway';
    src: url('../fonts/Raleway-Italic-VariableFont_wght.ttf') format('truetype');
    font-weight: 100 900;
    font-style: italic;
}

/* === CSS VARIABLES === */
:root {
    /* Colores principales */
    --color-primary: #EF6C00;
    --color-primary-dark: #E65100;
    --color-primary-light: #FF9800;

    /* Colores neutros */
    --color-dark: #1A1A1A;
    --color-dark-alt: #2D2D2D;
    --color-gray: #4A4A4A;
    --color-gray-light: #888888;
    --color-light: #F5F5F5;
    --color-white: #FFFFFF;

    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #EF6C00 0%, #E65100 100%);
    --gradient-dark: linear-gradient(180deg, #1A1A1A 0%, #2D2D2D 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(26, 26, 26, 0.7) 0%, rgba(26, 26, 26, 0.9) 100%);

    /* Tipografía */
    --font-primary: 'Raleway', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Bordes */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;

    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 30px rgba(239, 108, 0, 0.3);

    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* === RESET & BASE === */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-white);
    background-color: var(--color-dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul,
ol {
    list-style: none;
}

/* === UTILITIES === */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

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

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

.section-padding {
    padding: var(--spacing-xl) 0;
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 2rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

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

.btn-lg {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

/* === NAVBAR === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(26, 26, 26, 0.98);
    box-shadow: var(--shadow-lg);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100px;
}

.navbar-logo img {
    height: 180px;
    width: auto;
}

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

.navbar-link {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
}

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

.navbar-link:hover::after,
.navbar-link.active::after {
    width: 100%;
}

.navbar-link:hover,
.navbar-link.active {
    color: var(--color-primary);
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.navbar-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-normal);
}

/* === HERO SECTION === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../img/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: var(--spacing-md);
}

.hero-logo {
    width: 280px;
    margin: 0 auto var(--spacing-md);
    animation: fadeInDown 1s ease;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    animation: fadeInUp 1s ease 0.8s both;
}

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

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-gray-light);
}

/* === SECTION HEADERS === */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-light);
    max-width: 600px;
    margin: 0 auto;
}

/* === SERVICES SECTION === */
.services {
    background: var(--color-dark-alt);
}

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

.service-card {
    position: relative;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(239, 108, 0, 0.3);
    box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
}

.service-icon svg {
    width: 30px;
    height: 30px;
    fill: var(--color-white);
}

.service-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.service-desc {
    color: var(--color-gray-light);
    font-size: 0.95rem;
}

/* === ABOUT SECTION === */
.about {
    background: var(--color-dark);
}

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

.about-image {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.about-image img {
    width: 100%;
    height: auto;
    transition: transform var(--transition-slow);
}

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

.about-badge {
    position: absolute;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--gradient-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
}

.about-badge-number {
    font-size: 2.5rem;
    font-weight: 700;
}

.about-badge-text {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-content h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.about-content p {
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-sm);
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.feature-item svg {
    width: 24px;
    height: 24px;
    fill: var(--color-primary);
}

/* === GALLERY SECTION === */
.gallery {
    background: var(--color-dark-alt);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.gallery-item {
    position: relative;
    aspect-ratio: 16/10;
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

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

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(26, 26, 26, 0.8) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.gallery-item:hover::after {
    opacity: 1;
}

.gallery-item-title {
    position: absolute;
    bottom: var(--spacing-sm);
    left: var(--spacing-sm);
    z-index: 1;
    font-weight: 600;
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--transition-normal);
}

.gallery-item:hover .gallery-item-title {
    opacity: 1;
    transform: translateY(0);
}

/* === CTA SECTION === */
.cta {
    position: relative;
    background: var(--gradient-primary);
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.cta-pattern {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='m36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm-36 6v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.cta p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

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

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

/* === CONTACT SECTION === */
.contact {
    background: var(--color-dark);
}

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

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.contact-item-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(239, 108, 0, 0.1);
    border-radius: var(--border-radius-md);
    flex-shrink: 0;
}

.contact-item-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--color-primary);
}

.contact-item-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-item-content p {
    color: var(--color-gray-light);
    font-size: 0.95rem;
}

.contact-form {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.08);
}

.form-control::placeholder {
    color: var(--color-gray);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* === FOOTER === */
.footer {
    background: var(--color-dark-alt);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
}

.footer-brand img {
    height: 60px;
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: var(--color-gray-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.footer-social {
    display: flex;
    gap: var(--spacing-xs);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    transition: all var(--transition-normal);
}

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

.footer-social svg {
    width: 18px;
    height: 18px;
    fill: var(--color-white);
}

.footer-column h4 {
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.footer-column ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-column a {
    color: var(--color-gray-light);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--spacing-sm) 0;
    text-align: center;
}

.footer-bottom p {
    color: var(--color-gray);
    font-size: 0.875rem;
}

/* === PAGE HEADERS === */
.page-header {
    padding-top: 120px;
    padding-bottom: var(--spacing-lg);
    background: var(--gradient-dark);
    text-align: center;
}

.page-header h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.page-header p {
    color: var(--color-gray-light);
    font-size: 1.125rem;
}

/* === SERVICIOS PAGE === */
.services-full {
    background: var(--color-dark);
}

.service-card-large {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.service-card-large:nth-child(even) {
    direction: rtl;
}

.service-card-large:nth-child(even)>* {
    direction: ltr;
}

.service-card-image {
    height: 100%;
    min-height: 300px;
}

.service-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.service-card-content {
    padding: var(--spacing-md);
}

.service-card-content h3 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.service-card-content p {
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-sm);
}

.service-features {
    margin-bottom: var(--spacing-md);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    color: var(--color-gray-light);
}

.service-features li::before {
    content: '✓';
    color: var(--color-primary);
    font-weight: 600;
}

/* === MAP === */
.map-container {
    height: 400px;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    margin-top: var(--spacing-md);
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* === ANIMATIONS === */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-main {
        grid-template-columns: 1fr 1fr;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .service-card-large {
        grid-template-columns: 1fr;
    }

    .service-card-large:nth-child(even) {
        direction: ltr;
    }
}

@media (max-width: 768px) {
    .navbar-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--color-dark);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }

    .navbar-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .navbar-toggle {
        display: flex;
    }

    .navbar-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .navbar-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .navbar-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .footer-main {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .about-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }

    .hero-logo {
        width: 200px;
    }
}