/*
Theme Name: AMB Casas Prefabricadas
Theme URI: https://ambcasasprefabricadas.cl
Author: AMB Casas Prefabricadas Team
Author URI: https://ambcasasprefabricadas.cl
Description: Tema personalizado para AMB Casas Prefabricadas - Landing page para construcción y venta de casas prefabricadas personalizadas
Version: 1.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: amb-casasprefabricadas
Tags: construction, business, landing-page, responsive, corporate, prefab-houses
*/

/* ============================================
   VARIABLES GLOBALES Y RESETEO
   ============================================ */
:root {
    --color-primary: #1a1a1a; /* Negro principal */
    --color-secondary: #F5F5DC; /* Amarillo pálido (beige) */
    --color-accent: #333333; /* Gris oscuro para acentos */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-light: #f5f5f5;
    --color-gray-medium: #cccccc;
    --color-gray-dark: #666666;
    --font-primary: 'Roboto', sans-serif;
    --font-secondary: 'Montserrat', sans-serif;
    --transition-speed: 0.3s;
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 5px 20px rgba(0,0,0,0.15);
    --shadow-heavy: 0 10px 40px rgba(0,0,0,0.2);
}

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

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-primary);
    overflow-x: hidden;
    background: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

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

/* ============================================
   BOTONES
   ============================================ */
.btn {
    display: inline-block;
    padding: 15px 40px;
    font-family: var(--font-secondary);
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    text-transform: uppercase;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

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

.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-primary);
    box-shadow: var(--shadow-light);
}

.btn-secondary:hover {
    background: #E5E5CC;
    box-shadow: var(--shadow-medium);
    transform: translateY(-2px);
}

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

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

/* ============================================
   HEADER / NAVEGACIÓN
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-speed) ease;
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 1);
    box-shadow: var(--shadow-medium);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.site-logo img {
    height: 100px;
    width: auto;
    transition: transform var(--transition-speed) ease;
}

.site-logo:hover img {
    transform: scale(1.05);
}

.site-logo span {
    font-family: var(--font-secondary);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
}

.site-nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.site-nav a {
    color: var(--color-primary);
    font-weight: 500;
    position: relative;
}

.site-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-speed) ease;
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    margin: 5px 0;
    transition: all var(--transition-speed) ease;
}

/* ============================================
   HERO SECTION - DISEÑO MODERNO
   ============================================ */
.hero-section {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 650px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.4) 100%);
    z-index: 2;
}

.hero-container {
    position: relative;
    z-index: 3;
    width: 100%;
    max-width: 1200px;
    padding: 0 40px;
    margin: 0 auto;
}

.hero-content-box {
    max-width: 700px;
    background: rgba(255, 255, 255, 0.98);
    padding: 60px 50px;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.hero-badge {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray-dark);
    line-height: 1.6;
    margin-bottom: 35px;
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 18px 35px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.hero-btn:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.hero-btn i {
    font-size: 1.4rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content-box {
        padding: 40px 30px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
}

/* ============================================
   SECCIONES GENERALES
   ============================================ */

.hero-scroll span::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    width: 6px;
    height: 6px;
    background: var(--color-white);
    border-radius: 50%;
    transform: translateX(-50%);
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0% { top: 10px; opacity: 1; }
    100% { top: 30px; opacity: 0; }
}

/* ============================================
   SECCIONES GENERALES
   ============================================ */
.section {
    padding: 80px 20px;
    position: relative;
}

.section-white {
    background: var(--color-white);
}

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

.section-dark {
    background: var(--color-primary);
    color: var(--color-white);
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
    animation: fadeIn 1s ease-out;
}

.section-header h2 {
    font-size: 2.8rem;
    color: var(--color-primary);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-dark .section-header h2 {
    color: var(--color-white);
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--color-primary);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--color-gray-dark);
    max-width: 700px;
    margin: 20px auto 0;
}

.section-dark .section-header p {
    color: var(--color-gray-medium);
}

/* ============================================
   QUIÉNES SOMOS
   ============================================ */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text {
    animation: fadeInLeft 1s ease-out;
}

.about-text h3 {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 15px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: var(--color-gray-light);
    border-radius: 10px;
    transition: all var(--transition-speed) ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    display: block;
}

.stat-icon {
    font-size: 2.5rem;
    color: var(--color-primary);
    display: block;
}

.stat-icon i {
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-gray-dark);
    text-transform: uppercase;
}

.about-image {
    animation: fadeInRight 1s ease-out;
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: var(--shadow-heavy);
}

.about-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow-medium);
}

.about-badge .badge-number {
    font-size: 2rem;
    font-weight: 700;
    display: block;
}

.about-badge .badge-text {
    font-size: 0.9rem;
}

/* ============================================
   SERVICIOS
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--color-white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-speed) ease;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform var(--transition-speed) ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

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

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--color-white);
    transition: all var(--transition-speed) ease;
}

.service-card:hover .service-icon {
    transform: rotateY(360deg);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--color-primary);
}

.service-card p {
    color: var(--color-gray-dark);
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-list {
    list-style: none;
    text-align: left;
    margin: 20px 0;
}

.service-list li {
    padding: 8px 0;
    color: var(--color-gray-dark);
    position: relative;
    padding-left: 25px;
}

.service-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

/* ============================================
   POR QUÉ ELEGIRNOS
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.feature-item {
    text-align: center;
    padding: 30px;
    animation: fadeInUp 0.6s ease-out;
}

.feature-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 25px;
    background: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--color-primary);
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-speed) ease;
}

.feature-item:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-heavy);
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

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

/* ============================================
   PROYECTOS / GALERÍA
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    animation: fadeInUp 0.6s ease-out;
    cursor: pointer;
}

.project-image {
    position: relative;
    overflow: hidden;
    padding-top: 75%;
}

.project-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(26,26,26,0.95), transparent);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-info h3 {
    color: var(--color-white);
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.project-info p {
    color: var(--color-white);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.project-info .view-project {
    display: inline-block;
    background: var(--color-white);
    color: var(--color-primary);
    padding: 10px 25px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-speed) ease;
    margin-top: 10px;
}

.project-info .view-project:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26,26,26,0.4);
}

.no-projects-message {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-gray-dark);
    font-size: 1.1rem;
}

.section-footer {
    text-align: center;
    margin-top: 40px;
}

.project-category {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ============================================
   TESTIMONIOS
   ============================================ */
.testimonials-slider {
    max-width: 900px;
    margin: 0 auto;
}

.testimonial-item {
    background: var(--color-white);
    padding: 50px 40px;
    border-radius: 10px;
    box-shadow: var(--shadow-medium);
    text-align: center;
    margin: 20px;
    animation: fadeIn 0.6s ease-out;
}

.testimonial-quote {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--color-gray-dark);
    margin-bottom: 30px;
    line-height: 1.8;
    position: relative;
}

.testimonial-quote::before {
    content: '"';
    font-size: 4rem;
    color: var(--color-primary);
    position: absolute;
    top: -20px;
    left: -10px;
    opacity: 0.3;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.author-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--color-primary);
}

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

.author-info h4 {
    font-size: 1.1rem;
    color: var(--color-secondary);
    margin-bottom: 5px;
}

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

.testimonial-stars {
    color: #ffc107;
    font-size: 1.2rem;
    margin-bottom: 20px;
}

/* ============================================
   CONTACTO
   ============================================ */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    animation: fadeInLeft 0.6s ease-out;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--color-white);
    border-radius: 10px;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-speed) ease;
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-medium);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-white);
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.contact-details p {
    color: var(--color-gray-dark);
}

.contact-form {
    animation: fadeInRight 0.6s ease-out;
}

.form-group {
    margin-bottom: 25px;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--color-gray-medium);
    border-radius: 5px;
    font-family: var(--font-primary);
    font-size: 16px;
    transition: all var(--transition-speed) ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26,26,26,0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* ============================================
   BOTÓN WHATSAPP FLOTANTE
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-white);
    box-shadow: var(--shadow-heavy);
    z-index: 999;
    transition: all var(--transition-speed) ease;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background: #128C7E;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 60px 20px 20px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--color-secondary);
}

.footer-section p,
.footer-section li {
    color: var(--color-gray-medium);
    margin-bottom: 10px;
}

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

.footer-section a {
    color: var(--color-gray-medium);
    transition: color var(--transition-speed) ease;
}

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

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all var(--transition-speed) ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: var(--color-gray-medium);
}

/* ============================================
   ANIMACIONES
   ============================================ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 968px) {
    .site-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--color-secondary);
        padding: 80px 30px;
        transition: right var(--transition-speed) ease;
        box-shadow: -5px 0 20px rgba(0,0,0,0.3);
    }
    
    .site-nav.active {
        right: 0;
    }
    
    .site-nav ul {
        flex-direction: column;
        gap: 20px;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .about-content,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: 20px;
        right: 20px;
    }
}

/* ============================================
   SINGLE PROYECTO PAGE
   ============================================ */
.single-proyecto .single-project-page,
.single-proyecto body,
body.single-proyecto {
    margin-top: 0 !important;
    padding-top: 0 !important;
}

.single-project-page {
    background: #fff;
}

.project-hero {
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
    color: white;
    overflow: hidden;
}

.project-hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.project-hero-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26,26,26,0.85) 0%, rgba(51,51,51,0.75) 100%);
    z-index: 1;
}

.project-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-hero .container {
    position: relative;
    z-index: 2;
}

.project-hero-content {
    padding: 80px 0 60px;
    text-align: center;
}

.project-hero .project-category {
    display: inline-block;
    background: rgba(255,255,255,0.25);
    backdrop-filter: blur(10px);
    padding: 10px 25px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 25px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid rgba(255,255,255,0.3);
}

.project-hero h1 {
    font-size: 52px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    line-height: 1.2;
}

.project-meta {
    display: flex;
    gap: 20px;
    font-size: 16px;
    justify-content: center;
    align-items: center;
}

.project-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.project-meta i {
    font-size: 18px;
}

.project-content {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 50px;
    padding: 80px 0;
    max-width: 1400px;
    margin: 0 auto;
}

.project-main {
    min-width: 0;
}

.before-after-section {
    margin-bottom: 60px;
    animation: fadeInUp 0.6s ease-out;
}

.before-after-section h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 35px;
    color: var(--color-primary);
    position: relative;
    padding-bottom: 15px;
}

.before-after-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 2px;
}

.before-after-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 35px;
}

.before-after-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.before-after-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.25);
}

.before-after-item img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.before-after-item:hover img {
    transform: scale(1.05);
}

.before-after-label {
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.before-label {
    background: linear-gradient(135deg, #f44336 0%, #e91e63 100%);
    color: white;
}

.after-label {
    background: linear-gradient(135deg, #4CAF50 0%, #8BC34A 100%);
    color: white;
}

.project-description {
    margin-top: 50px;
    animation: fadeInUp 0.6s ease-out 0.2s backwards;
}

.project-description h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 25px;
    color: #333;
    position: relative;
    padding-bottom: 15px;
}

.project-description h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 2px;
}

.project-text {
    font-size: 17px;
    line-height: 1.9;
    color: #555;
}

.project-text p {
    margin-bottom: 20px;
}

.project-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.project-info-box,
.project-cta-box {
    background: linear-gradient(135deg, #f9f9f9 0%, #fff 100%);
    border-radius: 15px;
    padding: 35px;
    margin-bottom: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.project-info-box:hover,
.project-cta-box:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    transform: translateY(-3px);
}

.project-info-box h3,
.project-cta-box h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 25px;
    color: #222;
}

.project-details {
    list-style: none;
    padding: 0;
    margin: 0;
}

.project-details li {
    padding: 15px 0;
    border-bottom: 1px solid #e8e8e8;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.project-details li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.project-details strong {
    color: var(--color-primary);
    font-weight: 600;
}

.project-cta-box {
    background: linear-gradient(135deg, var(--color-primary) 0%, #FF6F00 100%);
    color: white;
}

.project-cta-box h3 {
    color: white;
}

.project-cta-box p {
    color: rgba(255,255,255,0.95);
    margin-bottom: 25px;
    line-height: 1.6;
}

.project-cta-box .btn {
    width: 100%;
    margin-bottom: 12px;
    text-align: center;
    font-weight: 600;
    padding: 14px 25px;
}

.project-cta-box .btn-primary {
    background: white;
    color: var(--color-primary);
    border: 2px solid white;
}

.project-cta-box .btn-primary:hover {
    background: transparent;
    color: white;
}

.project-cta-box .btn-outline {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

.project-navigation {
    margin-top: 80px;
    padding: 50px 0;
    background: #f9f9f9;
    border-top: 3px solid var(--color-primary);
}

.nav-links {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 25px;
    align-items: stretch;
}

.nav-previous,
.nav-next,
.nav-all {
    display: flex;
    flex-direction: column;
    padding: 25px;
    background: white;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    border: 2px solid transparent;
}

.nav-previous:hover,
.nav-next:hover {
    border-color: var(--color-primary);
    box-shadow: 0 5px 25px rgba(26,26,26,0.2);
    transform: translateY(-5px);
}

.nav-all {
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
    background: var(--color-primary);
    color: white;
    font-weight: 700;
}

.nav-all:hover {
    background: var(--color-accent);
    transform: translateY(-5px);
}

.nav-subtitle {
    font-size: 12px;
    color: #999;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-title {
    font-size: 17px;
    font-weight: 600;
    color: #333;
    line-height: 1.4;
}

.nav-previous:hover .nav-title,
.nav-next:hover .nav-title {
    color: var(--color-primary);
}

/* Responsive Single Proyecto */
@media (max-width: 992px) {
    .project-content {
        grid-template-columns: 1fr;
    }
    
    .project-sidebar {
        position: static;
    }
    
    .before-after-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        grid-template-columns: 1fr;
    }
    
    .nav-all {
        order: 3;
    }
}

@media (max-width: 768px) {
    .project-hero {
        min-height: 400px;
    }
    
    .project-hero h1 {
        font-size: 36px;
    }
    
    .project-hero-content {
        padding: 60px 0 40px;
    }
    
    .before-after-section h2,
    .project-description h2 {
        font-size: 28px;
    }
    
    .before-after-item img {
        height: 300px;
    }
    
    .project-content {
        padding: 40px 0;
    }
}

/* ============================================
   ARCHIVE PROYECTO PAGE
   ============================================ */
.archive-proyecto-page {
    margin-top: 80px;
}

.page-hero {
    position: relative;
    padding: 100px 0;
    background: linear-gradient(135deg, #FF5722 0%, #FF9800 100%);
    color: white;
    text-align: center;
}

.page-hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.page-hero p {
    font-size: 20px;
    opacity: 0.9;
}

.projects-filters {
    background: white;
    padding: 30px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 80px;
    z-index: 100;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-btn {
    padding: 12px 30px;
    border: 2px solid #FF5722;
    background: white;
    color: #FF5722;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: #FF5722;
    color: white;
    transform: translateY(-2px);
}

.no-projects {
    text-align: center;
    padding: 80px 20px;
}

.no-projects i {
    font-size: 80px;
    color: #e0e0e0;
    margin-bottom: 30px;
}

.no-projects h3 {
    font-size: 32px;
    color: #333;
    margin-bottom: 15px;
}

.no-projects p {
    font-size: 18px;
    color: #666;
}

/* Responsive para proyectos */
@media (max-width: 992px) {
    .project-content {
        grid-template-columns: 1fr;
    }
    
    .project-sidebar {
        position: static;
    }
    
    .before-after-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        grid-template-columns: 1fr;
    }
    
    .nav-all {
        order: 3;
    }
}

@media (max-width: 768px) {
    .project-hero h1,
    .page-hero h1 {
        font-size: 32px;
    }
    
    .page-hero p {
        font-size: 16px;
    }
}

/* ============================================
   UTILIDADES
   ============================================ */
.text-center {
    text-align: center;
}

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

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

.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mt-4 { margin-top: 40px; }

.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }
.mb-4 { margin-bottom: 40px; }

.visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}