/* ==========================================================================
   Variables & Configuración
   ========================================================================== */
   :root {
    /* Paleta de Colores */
    --color-white: #FFFFFF;
    --color-bg: #FCFBFA; /* Blanco un poco más cálido para el fondo base */
    --color-beige: #F5F2EB;
    --color-dark: #1A1A1A;
    --color-gray: #757575;
    --color-light-gray: #E5E5E5;
    --color-gold: #C5A880;
    --color-gold-hover: #b0926a;
    
    /* Tipografía */
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
    
    /* Tamaños de fuente */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;
    --text-5xl: 3.5rem;
    --text-6xl: 5rem;
    --text-hero: clamp(3rem, 8vw, 7rem);

    /* Espaciados */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Transiciones */
    --transition-fast: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

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

html {
    scroll-behavior: initial; /* Lenis maneja el scroll */
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--color-dark);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, .font-serif {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray);
    font-weight: 300;
}

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

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

ul {
    list-style: none;
}

/* ==========================================================================
   Utilidades
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 5%;
}

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

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

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

.section-title {
    font-size: var(--text-4xl);
    margin-bottom: var(--spacing-md);
}

.subtitle {
    display: block;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gold);
    margin-bottom: var(--spacing-sm);
}

.lead-text {
    font-size: var(--text-2xl);
    line-height: 1.4;
    color: var(--color-dark);
    font-weight: 300;
}

/* Botones y Enlaces */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

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

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

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

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

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

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-dark);
    padding-bottom: 0.2rem;
}

.link-arrow:hover {
    color: var(--color-gold);
    border-color: var(--color-gold);
}

.link-arrow i {
    transition: transform var(--transition-fast);
}

.link-arrow:hover i {
    transform: translateX(5px);
}

/* ==========================================================================
   Header & Navegación
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 0;
    z-index: 100;
    transition: padding var(--transition-fast), background-color var(--transition-fast), border-bottom var(--transition-fast);
    border-bottom: 1px solid rgba(255, 255, 255, 0);
}

.header.scrolled {
    padding: 1rem 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-light-gray);
}

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

.logo {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    color: var(--color-white);
    letter-spacing: 0.1em;
}

.header.scrolled .logo {
    color: var(--color-dark);
}

.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-links a {
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-white);
}

.header.scrolled .nav-links a {
    color: var(--color-dark);
}

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

.header.scrolled .menu-toggle {
    color: var(--color-dark);
}

/* Mobile Nav Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--color-white);
    z-index: 101;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right var(--transition-slow);
}

.nav-overlay.active {
    right: 0;
}

.nav-overlay .nav-links {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
}

.nav-overlay .nav-links a {
    font-size: var(--text-2xl);
    color: var(--color-dark);
}

.close-menu {
    position: absolute;
    top: 2rem;
    right: 5%;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-dark);
    cursor: pointer;
}

body.menu-open {
    overflow: hidden;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background-color: #1a1a1a; 
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    filter: brightness(0.9) contrast(1.05);
    transition: transform 1.5s ease-out;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, 
        rgba(26, 26, 26, 0.4) 0%, 
        rgba(26, 26, 26, 0.2) 50%, 
        rgba(26, 26, 26, 0.5) 100%);
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: var(--text-hero);
    margin-bottom: 0;
    letter-spacing: 0.05em;
    line-height: 1;
}

.hero-subtitle {
    font-family: var(--font-sans);
    font-size: var(--text-xl);
    font-weight: 300;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 1rem;
    margin-bottom: 3rem;
    letter-spacing: 0.05em;
}

/* ==========================================================================
   Introducción
   ========================================================================== */
.intro-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.intro-image img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
}

/* ==========================================================================
   Proyectos & Filtros
   ========================================================================== */
.img-premium {
    filter: contrast(1.05) saturate(0.85);
}

.img-real-photo {
    filter: brightness(0.9) contrast(1.1) saturate(0.8) sepia(0.1);
    transition: filter var(--transition-fast), transform var(--transition-slow);
}

.projects .section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 4rem;
}

.project-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--color-light-gray);
    padding: 0.5rem 1.5rem;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    color: var(--color-gray);
    cursor: pointer;
    border-radius: 2rem;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--color-dark);
    color: var(--color-dark);
}

.filter-btn.active {
    background-color: var(--color-dark);
    color: var(--color-white);
    border-color: var(--color-dark);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

/* Ocultar proyectos filtrados */
.project-card.hidden {
    display: none;
}

.project-img-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/5;
    margin-bottom: 1.5rem;
}

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

.project-hover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(26, 26, 26, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.hover-text {
    color: var(--color-white);
    font-family: var(--font-sans);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: var(--text-sm);
    transform: translateY(20px);
    transition: transform var(--transition-fast);
}

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

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

.project-card:hover .hover-text {
    transform: translateY(0);
}

.project-name {
    font-size: var(--text-2xl);
    margin-bottom: 0.25rem;
}

.project-location {
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0;
}

/* ==========================================================================
   Sobre Nosotros
   ========================================================================== */
.about-container {
    max-width: 1000px;
}

.about-blocks {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4rem;
    margin-top: 4rem;
}

.about-block h3 {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-dark);
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-light-gray);
}

.about-block p {
    font-size: var(--text-sm);
}

/* ==========================================================================
   Servicios
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.service-card {
    background-color: var(--color-white);
    padding: 3rem 2rem;
    text-align: center;
    border: 1px solid var(--color-light-gray);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}

.service-icon {
    font-size: 3rem;
    color: var(--color-gold);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: var(--text-lg);
    margin-bottom: 0;
}

/* ==========================================================================
   Proceso
   ========================================================================== */
.process-timeline {
    position: relative;
    margin-top: 5rem;
}

.process-line {
    position: absolute;
    top: 30px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-light-gray);
    z-index: 1;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

.process-step {
    text-align: center;
    background-color: var(--color-bg);
    padding: 0 1rem;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: var(--color-white);
    border: 1px solid var(--color-light-gray);
    border-radius: 50%;
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    color: var(--color-gold);
    margin-bottom: 1.5rem;
    position: relative;
}

.process-step h4 {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ==========================================================================
   Contacto
   ========================================================================== */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
}

.contact-desc {
    font-size: var(--text-lg);
    margin-bottom: 3rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.detail-label {
    display: block;
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
}

.detail-item p, .detail-item a {
    font-size: var(--text-lg);
    color: var(--color-dark);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-light-gray);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--color-dark);
    transition: border-color var(--transition-fast);
}

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

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: 6rem 0 3rem;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand h2 {
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.5);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links a:hover {
    color: var(--color-gold);
}

.footer-social {
    display: flex;
    gap: 1.5rem;
    font-size: 1.5rem;
}

.footer-social a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-social a:hover {
    color: var(--color-gold);
}

.footer-copy {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 3rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--text-sm);
}

.footer-logo-wrapper {
    text-align: center;
    margin-bottom: 2rem;
}

.footer-logo {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 50%;
    opacity: 0.9;
    transition: all var(--transition-fast);
}

.footer-logo:hover {
    opacity: 1;
    transform: scale(1.05);
}


/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .about-blocks {
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
        --text-hero: 4rem;
        --text-4xl: 2rem;
        --text-2xl: 1.5rem;
    }

    .nav {
        display: none;
    }

    .nav-links {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .intro-container,
    .contact-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .projects .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .projects-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }

    .about-blocks {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .process-line {
        display: none;
    }

    .process-steps {
        flex-direction: column;
        gap: 2rem;
        align-items: flex-start;
    }

    .process-step {
        display: flex;
        align-items: center;
        gap: 1.5rem;
        text-align: left;
        padding: 0;
    }

    .step-number {
        margin-bottom: 0;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    /* Project Detail Subpages Responsiveness */
    .project-hero {
        padding-top: 8rem;
    }

    .project-info-grid {
        grid-template-columns: 1fr !important;
        padding: 2rem !important;
        margin-top: 0 !important;
        gap: 2rem !important;
    }

    .project-meta-list {
        border-right: none !important;
        border-bottom: 1px solid var(--color-light-gray) !important;
        padding-bottom: 2rem !important;
        padding-right: 0 !important;
        flex-direction: row !important;
        flex-wrap: wrap !important;
        gap: 2rem !important;
    }

    .meta-item {
        flex: 1 1 120px;
    }

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

    .gallery-item.col-span-2 {
        grid-column: span 1 !important;
        aspect-ratio: 16/9 !important;
    }

    /* Small mobile tweaks */
    @media (max-width: 480px) {
        :root {
            --text-hero: 2.5rem;
            --spacing-xl: 3rem;
            --text-4xl: 1.75rem;
        }
        
        .header {
            padding: 1rem 0;
        }
        
        .logo {
            font-size: var(--text-base);
        }

        .hero-title {
            margin-top: 1rem;
        }

        .section {
            padding: 4rem 0;
        }

        .btn {
            width: 100%;
            text-align: center;
        }
    }
}