/* Global Vars & Reset */
:root {
    --primary-color: #d4af37; /* Metallic Gold */
    --secondary-color: #1a1a1a; /* Dark Gray */
    --accent-color: #f5f5f5; /* Light Gray/White */
    --text-color: #e0e0e0;
    --dark-bg: #121212;
    --light-bg: #1e1e1e;
    --transition: all 0.3s ease;
    --font-main: 'Montserrat', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--dark-bg);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

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

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

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: background 0.4s ease;
    padding: 15px 0;
}

header.scrolled {
    background: rgba(18, 18, 18, 0.95);
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
    padding: 10px 0;
}

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

.logo img {
    height: 50px;
    transition: var(--transition);
}

.navbar ul {
    display: flex;
    gap: 30px;
}

.navbar a {
    font-weight: 500;
    font-size: 0.9rem;
    color: #fff;
    position: relative;
    padding-bottom: 5px;
}

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

.navbar a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #fff;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background-color: var(--secondary-color);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: 0.4s ease-in-out;
}

.mobile-menu.active {
    right: 0;
    box-shadow: -5px 0 15px rgba(0,0,0,0.5);
}

.mobile-menu ul li {
    margin: 20px 0;
}

.mobile-menu a {
    font-size: 1.5rem;
    color: #fff;
}

.close-menu {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: url('img/construccion/IMG_20211119_163706-1013x1024.jpg') no-repeat center center/cover;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 20px;
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    font-size: 3.5rem;
    color: #fff;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #ddd;
}

.btn-primary {
    display: inline-block;
    padding: 12px 30px;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: var(--primary-color);
    color: #000;
}

/* Gallery Section */
.gallery-section {
    padding: 100px 0;
    background-color: var(--secondary-color);
}

.gallery-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--text-color);
    color: var(--text-color);
    padding: 10px 25px;
    cursor: pointer;
    font-family: var(--font-main);
    text-transform: uppercase;
    transition: var(--transition);
    border-radius: 30px;
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #000;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border-radius: 4px;
    aspect-ratio: 1; 
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.gallery-overlay i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

/* Contact Section */
.contact-section {
    padding: 100px 0;
    background-color: var(--dark-bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.contact-info p {
    margin-bottom: 2rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 5px;
}

.info-item h4 {
    color: #fff;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.info-item a {
    color: var(--text-color);
}

.info-item a:hover {
    color: var(--primary-color);
}

.map-container {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

/* Footer */
footer {
    background-color: #000;
    padding: 30px 0;
    border-top: 1px solid #333;
}

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

.footer-content p {
    font-size: 0.9rem;
    color: #888;
}

/* Lightbox */
.lightbox {
    position: fixed;
    z-index: 2000;
    padding-top: 50px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.95);
    display: none;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.lightbox.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.lightbox-img {
    max-width: 90%;
    max-height: 80vh;
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.2);
}

.close-lightbox {
    position: absolute;
    top: 20px;
    right: 30px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.close-lightbox:hover {
    color: var(--primary-color);
}

/* Responsive */
@media (max-width: 900px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-content .navbar {
        display: none;
    }
    
    .hamburger {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .gallery-filters {
        gap: 10px;
    }
    
    .filter-btn {
        padding: 8px 15px;
        font-size: 0.8rem;
    }
    
    .footer-content {
        flex-direction: column-reverse;
        gap: 20px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}