/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Playfair+Display:ital,wght@0,400;0,500;0,600;1,400&display=swap');

:root {
    /* Colors */
    --color-bg: #FDFDFB;
    /* Warm white/cream */
    --color-bg-secondary: #F5F5F2;
    --color-text: #1C1C1C;
    /* Soft charcoal */
    --color-text-secondary: #666666;
    --color-accent: #A69E90;
    /* Muted gold/beige */
    --color-border: #E5E5E5;

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Container */
    --container-width: 1440px;
    --container-padding: 2rem;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-weight: 300;
    /* Light feel */
    overflow-x: hidden;
}

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

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

a {
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

a:hover {
    opacity: 0.7;
}

/* Utilities */

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

.uppercase {
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Buttons */

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: transparent;
    border: 1px solid var(--color-text);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    background-color: var(--color-text);
    color: var(--color-bg);
}

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

/* Main Layout Styles */

.site-header {
    background-color: var(--color-bg);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--color-border);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: inherit;
    text-transform: uppercase;
    text-decoration: none;
    display: inline-flex;
    flex-direction: column; 
    align-items: center;
    gap: 2px;
    transition: transform 0.4s ease-in-out; 
    z-index: 102; 
}

.logo-text {
    display: flex;
    letter-spacing: 0.2em;
}

.logo span {
    font-weight: 300;
    opacity: 0.7;
    transition: all 0.4s ease;
}

.logo b {
    font-weight: 600;
    margin-left: 0.4em;
    letter-spacing: 0.3em;
    transition: all 0.4s ease;
}

.logo::after {
    content: '';
    width: 0px; 
    height: 1px;
    background-color: var(--color-accent);
    transition: width 0.5s ease;
}

.logo:hover {
    transform: translateY(-2px); 
}

.logo:hover::after {
    width: 100%;
}

.logo:hover span {
    opacity: 1;
    letter-spacing: 0.25em; 
}

.logo:hover b {
    color: var(--color-accent); 
}

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

.main-nav a {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.main-nav ul li a {
    position: relative;
    padding: 0.5rem 0;
    font-weight: 400;
    letter-spacing: 0.1em;
    transition: color 0.3s ease;
}

.main-nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0; 
    height: 1px;
    background-color: var(--color-accent);
    transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.main-nav ul li a:hover {
    color: var(--color-text); 
    opacity: 1; 
}

.main-nav ul li a:hover::after {
    width: 100%; 
}

.main-nav a.btn-link {
    border-bottom: none; 
}

.main-nav ul li {
    animation: navFadeIn 0.8s ease forwards;
    opacity: 0;
}

.main-nav ul li:nth-child(1) { animation-delay: 0.1s; }
.main-nav ul li:nth-child(2) { animation-delay: 0.2s; }
.main-nav ul li:nth-child(3) { animation-delay: 0.3s; }
.main-nav ul li:nth-child(4) { animation-delay: 0.4s; }

.btn-link {
    border-bottom: 1px solid var(--color-text);
}

.hero {
    position: relative;
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

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

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.9);
}

.hero-content {
    text-align: center;
    color: #fff;
    z-index: 1;
    max-width: 800px;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 0;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero .subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: #f0f0f0;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.hero .btn {
    border-color: #fff;
    color: #fff;
}

.hero .btn:hover {
    background-color: #fff;
    color: var(--color-text);
}

.kpi-strip {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-bg-secondary);
    margin-bottom: var(--spacing-lg);
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    text-align: center;
    gap: var(--spacing-md);
}

.kpi-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.kpi-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-secondary);
}

.value-prop {
    margin-bottom: var(--spacing-xl);
}

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

.value-item h3 {
    font-size: 1.5rem;
    border-bottom: 2px solid var(--color-accent);
    display: inline-block;
    padding-bottom: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.grid-2-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.featured-projects {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: end;
    margin-bottom: var(--spacing-md);
}

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

.project-card {
    display: block;
    background: var(--color-bg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-bottom: 1px solid transparent;
}

.project-image-container {
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
    aspect-ratio: 4/3;
}

.project-card img {
    transition: transform 0.6s ease;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border-bottom: 1px solid var(--color-accent);
}

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

.project-info h4 {
    margin-bottom: 0.25rem;
    font-size: 1.2rem;
}

.project-meta {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.manifesto {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-secondary);
    margin: var(--spacing-lg) 0;
}

.manifesto-text {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    line-height: 1.4;
    max-width: 800px;
    margin: 0 auto var(--spacing-md) auto;
    font-style: italic;
}

.contact-info a {
    text-decoration: underline;
}

.gallery-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
    background-color: var(--color-bg-secondary);
}

.gallery-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.gallery-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-nav {
    /* Posicionamiento */
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;

    /* Dimensiones y Forma */
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: none;
    padding: 0;

    /* Estética */
    background: rgba(0, 0, 0, 0.2);
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    opacity: 0.7;
    
    /* Animación */
    transition: all 0.3s ease;
}

.gallery-nav:hover {
    background: rgba(0, 0, 0, 0.5);
    transform: translateY(-50%) scale(1.1);
}

.gallery-nav.prev { left: 1rem; }
.gallery-nav.next { right: 1rem; }

.gallery-nav .material-symbols-outlined {
    font-size: 20px; /* Tamaño del icono */
    color: #fff;
}

.gallery-nav.prev .material-symbols-outlined {
    margin-right: 2px; 
}

.gallery-counter {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 300;
    letter-spacing: 0.2em;
    z-index: 10;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text);
    /* Animación de entrada/salida */
    transition: opacity 0.3s ease, transform 0.3s ease; 
    z-index: 101; /* Asegurar que esté por encima */
}

.menu-toggle.hidden-icon {
    opacity: 0;
    transform: scale(0.5);
    pointer-events: none; /* Evita que se pueda clicar mientras es invisible */
}

.mobile-only {
    display: none;
}

.site-footer {
    background-color: #1a1a1a;
    color: #fff;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* Logo | Navegación | Legal | Redes */
    gap: var(--spacing-lg);
    align-items: start;
}

.footer-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
    color: #ffffff;
}

.footer-description {
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-bottom {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.8rem;
    opacity: 0.6;
}

.footer-col {
    display: flex;
    flex-direction: column;
    align-items: flex-start; 
    text-align: left;        
}

.footer-col ul {
    padding: 0;
    margin: 0;
    text-align: left;
}

.footer-col ul li {
    margin-bottom: var(--spacing-xs);
    text-align: left;
    display: block; 
}

.footer-col a:hover {
    color: var(--color-accent);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-start; 
}

body.no-scroll {
    overflow: hidden;
}

@media (max-width: 768px) {

    /* =========================
       LAYOUT GENERAL
    ========================= */
    .container {
        padding: 0 1.5rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    .value-grid,
    .project-grid,
    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .contact-info {
        margin-top: var(--spacing-md);
    }

    .gallery-container {
        aspect-ratio: 4/3;
    }

    .gallery-nav {
        padding: 1rem;
    }

    .logo {
        font-size: 1.2rem;
        transform: none;
        z-index: 1002;
    }

    .logo::after {
        width: 0;
    }


    /* =========================
       HEADER
    ========================= */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
    }

    .header-container {
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
        gap: 1rem;
        position: relative;
        padding: 0.5rem 1.5rem;
    }


    /* =========================
       MOBILE NAV
    ========================= */
    .main-nav {
        display: none;
        position: fixed;
        inset: 0;
        width: 100%;
        height: 100vh;
        background: var(--color-bg);
        padding: var(--spacing-xl) 1.5rem;
        z-index: 1000;
        overflow-y: auto;
    }

    .main-nav.is-active {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        animation: navFadeIn 0.4s ease-out;
    }

    .main-nav ul {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
        width: 100%;
        margin-top: var(--spacing-lg);
    }

    .main-nav ul li {
        width: 100%;
        opacity: 0;
        animation: navFadeIn 0.5s ease forwards;
    }

    .main-nav ul li a {
        display: block;
        font-size: 1.2rem;
        padding: 0.5rem 0;
    }


    /* =========================
       MENU BUTTONS
    ========================= */
    .mobile-only {
        display: block;
        position: absolute;
        top: 1rem;
        left: 1.5rem;
        z-index: 1003;
    }

    .menu-toggle {
        display: block;
        position: absolute;
        left: 1.5rem;
        padding: 8px;
        line-height: 0;
        z-index: 1001;
    }

    .menu-toggle .material-symbols-outlined {
        font-size: 35px;
        display: block;
    }

    .menu-close {
        background: none;
        border: none;
        cursor: pointer;
        padding: 0;
        color: var(--color-text);
    }

    .menu-close .material-symbols-outlined {
        font-size: 2.5rem;
    }

    body.menu-open-fixed {
        overflow: hidden;
    }


    /* =========================
       FOOTER
    ========================= */
    .footer-col,
    .footer-col.identity {
        align-items: flex-start;
        text-align: left;
    }

    .social-links {
        justify-content: flex-start;
    }

    .grid-2-col {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

@keyframes navFadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}