/* ===== VARIABLES (basadas en el diseño original) ===== */
:root {
    /* Colores principales */
    --primary: #001d11;
    --on-primary: #ffffff;
    --primary-container: #0a3323;
    --on-primary-container: #749d87;
    --primary-fixed: #c2ecd4;
    --primary-fixed-dim: #a6d0b9;
    --secondary: #51652a;
    --on-secondary: #ffffff;
    --secondary-container: #d3eca2;
    --on-secondary-container: #576b30;
    --tertiary: #2f0d08;
    --on-tertiary: #ffffff;
    --tertiary-container: #49211b;
    --on-tertiary-container: #c0857c;
    
    /* Superficies */
    --surface: #f9f9f6;
    --on-surface: #1a1c1a;
    --surface-container: #eeeeeb;
    --surface-container-low: #f3f4f1;
    --surface-container-high: #e8e8e5;
    --surface-container-highest: #e2e3e0;
    --surface-container-lowest: #ffffff;
    --surface-variant: #e2e3e0;
    --on-surface-variant: #414844;
    
    /* Bordes y outlines */
    --outline: #717973;
    --outline-variant: #c1c8c2;
    
    /* Estados */
    --error: #ba1a1a;
    --error-container: #ffdad6;
    --on-error: #ffffff;
    --on-error-container: #93000a;
    
    /* Espaciados */
    --margin-mobile: 24px;
    --margin-desktop: 64px;
    --gutter: 24px;
    --container-max: 1440px;
    --section-gap: 120px;
    --unit: 8px;
    
    /* Tipografías */
    --font-headline: 'Vintage Postman Sans', serif;
    --font-script: 'Vintage Postman Script', cursive;
    --font-body: 'Raleway', sans-serif;
    --font-size-headline-xl: 48px;
    --font-size-display-lg: 80px;
    --font-size-display-lg-mobile: 48px;
    --font-size-headline-md: 32px;
    --font-size-body-lg: 18px;
    --font-size-body-md: 16px;
    --font-size-label-caps: 12px;
}

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

body {
    background-color: var(--surface);
    color: var(--on-surface);
    font-family: var(--font-body);
    font-size: var(--font-size-body-md);
    line-height: 1.6;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
}

/* ===== TIPOGRAFÍA ===== */
h1, h2, h3, h4, .site-logo, .footer-logo {
    font-family: var(--font-headline);
    font-weight: 400;
}

/* ===== HERO SECTION ===== */
.project-hero {
    position: relative;
    width: 100%;
    height: 921px;
    overflow: hidden;
}

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

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
    display: flex;
    align-items: flex-end;
}

.hero-content {
    padding: 0 var(--margin-desktop) var(--section-gap);
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    color: var(--on-primary);
}

.hero-badge {
    display: inline-block;
    background-color: var(--secondary-container);
    color: var(--on-secondary-container);
    padding: 4px 16px;
    border-radius: 9999px;
    font-family: var(--font-body);
    font-size: var(--font-size-label-caps);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 24px;
}

.hero-title {
    font-size: var(--font-size-display-lg);
    line-height: 1.1;
    letter-spacing: -0.02em;
    max-width: 56rem;
}

/* ===== PROJECT OVERVIEW ===== */
.project-overview {
    padding: var(--section-gap) var(--margin-desktop);
    max-width: var(--container-max);
    margin: 0 auto;
}

.overview-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gutter);
}

.detail-item {
    margin-bottom: 32px;
}

.detail-label {
    font-family: var(--font-body);
    font-size: var(--font-size-label-caps);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(0, 29, 17, 0.6);
    margin-bottom: 8px;
}

.detail-value {
    font-size: var(--font-size-body-lg);
    line-height: 1.6;
}

.description-block {
    margin-bottom: 48px;
}

.description-title {
    font-size: var(--font-size-headline-md);
    line-height: 1.3;
    color: var(--primary);
    margin-bottom: 24px;
}

.description-text {
    font-size: var(--font-size-body-lg);
    color: var(--on-surface-variant);
    line-height: 1.7;
}

/* ===== GALLERY ===== */
.project-gallery {
    padding: 0 var(--margin-desktop) var(--section-gap);
    max-width: var(--container-max);
    margin: 0 auto;
}

.gallery-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gutter);
    margin-bottom: var(--gutter);
}

.gallery-image-large,
.gallery-image-small,
.gallery-image-medium,
.gallery-image-full,
.gallery-quote-block {
    overflow: hidden;
    border-radius: 0.5rem;
    border: 1px solid rgba(0, 29, 17, 0.05);
}

.gallery-image-large img,
.gallery-image-small img,
.gallery-image-medium img,
.gallery-image-full img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.gallery-image-large {
    height: 600px;
}

.gallery-quote-block {
    height: 600px;
    background-color: var(--surface-container-low);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--margin-desktop);
}

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

.quote-icon {
    font-size: 48px;
    color: rgba(0, 29, 17, 0.2);
    margin-bottom: 16px;
}

.quote-text {
    font-family: var(--font-headline);
    font-size: var(--font-size-headline-md);
    line-height: 1.3;
    color: var(--primary);
    font-style: italic;
    margin-bottom: 16px;
}

.quote-author {
    font-size: var(--font-size-body-md);
    color: var(--on-surface-variant);
}

.gallery-image-small {
    height: 400px;
}

.gallery-image-medium {
    height: 400px;
}

.gallery-row-full {
    margin-top: var(--gutter);
}

.gallery-image-full {
    height: 800px;
}

/* ===== PROJECT NAVIGATION ===== */
.project-navigation {
    border-top: 1px solid rgba(0, 29, 17, 0.1);
    padding: var(--section-gap) var(--margin-desktop);
    background-color: var(--surface-container-lowest);
}

.nav-links-container {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    gap: var(--gutter);
}

.prev-project,
.next-project {
    cursor: pointer;
}

.nav-label {
    font-family: var(--font-body);
    font-size: var(--font-size-label-caps);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(0, 29, 17, 0.4);
    margin-bottom: 8px;
}

.nav-link {
    font-family: var(--font-headline);
    font-size: var(--font-size-headline-md);
    line-height: 1.3;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: transform 0.3s ease;
}

.prev-link {
    justify-content: flex-start;
}

.next-link {
    justify-content: flex-end;
}

.prev-link:hover {
    transform: translateX(-8px);
}

.next-link:hover {
    transform: translateX(8px);
}

.nav-icon {
    font-size: 24px;
    margin: 0 4px;
}

/* ===== REVEAL ON SCROLL ===== */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s ease-out;
}

.reveal-on-scroll.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (min-width: 768px) {
    .overview-grid {
        grid-template-columns: repeat(12, 1fr);
    }
    
    .overview-details {
        grid-column: span 4;
    }
    
    .overview-description {
        grid-column: 6 / -1;
    }
    
    .gallery-row {
        grid-template-columns: repeat(12, 1fr);
    }
    
    .gallery-image-large {
        grid-column: span 7;
    }
    
    .gallery-quote-block {
        grid-column: span 5;
    }
    
    .gallery-image-small {
        grid-column: span 4;
    }
    
    .gallery-image-medium {
        grid-column: span 8;
    }
    
    .gallery-image-full {
        grid-column: span 12;
    }
    
    .nav-links-container {
        flex-direction: row;
    }
    
    .footer-container {
        flex-direction: row;
        text-align: left;
    }
    
    .footer-brand {
        text-align: left;
        margin-bottom: 0;
    }
    
    .footer-social {
        align-items: flex-end;
    }
    
    .hero-title {
        font-size: var(--font-size-display-lg);
    }
}

@media (min-width: 1024px) {
    .gallery-image-large {
        height: 600px;
    }
    
    .gallery-quote-block {
        height: 600px;
    }
    
    .gallery-image-small,
    .gallery-image-medium {
        height: 400px;
    }
    
    .gallery-image-full {
        height: 800px;
    }
}

@media (max-width: 767px) {
    .nav-links {
        display: none;
    }
    
    .nav-container {
        padding-left: var(--margin-mobile);
        padding-right: var(--margin-mobile);
    }
    
    .hero-content {
        padding-left: var(--margin-mobile);
        padding-right: var(--margin-mobile);
    }
    
    .hero-title {
        font-size: var(--font-size-display-lg-mobile);
    }
    
    .project-overview,
    .project-gallery,
    .project-navigation {
        padding-left: var(--margin-mobile);
        padding-right: var(--margin-mobile);
    }
    
    .gallery-image-large,
    .gallery-quote-block,
    .gallery-image-small,
    .gallery-image-medium,
    .gallery-image-full {
        height: auto;
        min-height: 300px;
    }
    
    .quote-text {
        font-size: 28px;
    }
    
    .gallery-quote-block {
        padding: 48px;
    }
    
    .footer-container {
        padding-left: var(--margin-mobile);
        padding-right: var(--margin-mobile);
    }
}

/* ===== UTILIDADES ===== */
.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    display: inline-block;
    vertical-align: middle;
}