/* ===== VARIABLES ===== */
:root {
    /* Colores (basados en el diseño original) */
    --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;
    --surface: #f9f9f6;
    --on-surface: #1a1c1a;
    --surface-container: #eeeeeb;
    --surface-container-low: #f3f4f1;
    --surface-container-high: #e8e8e5;
    --surface-variant: #e2e3e0;
    --on-surface-variant: #414844;
    --outline-variant: #c1c8c2;
    --error: #ba1a1a;
    --error-container: #ffdad6;

    /* Espaciados */
    --margin-mobile: 24px;
    --margin-desktop: 64px;
    --gutter: 24px;
    --container-max: 1440px;
    --section-gap: 120px;

    /* 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-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, .site-logo, .footer-logo {
    font-family: var(--font-headline);
    font-weight: 400;
}

/* Header/footer styles consolidated in css/common.css */

/* ===== MAIN CONTAINER ===== */
.main-container {
    max-width: var(--container-max);
    background-color: var(--surface-container-low);
    margin: 0 auto;
    padding-left: var(--margin-desktop);
    padding-right: var(--margin-desktop);
}

/* ===== PORTFOLIO HERO ===== */
.portfolio-hero {
    padding-top: var(--section-gap);
    padding-bottom: var(--section-gap);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gutter);
    align-items: end;
}

.hero-title {
    font-size: var(--font-size-display-lg);
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--primary);
    margin-bottom: 24px;
}

.hero-description {
    font-size: var(--font-size-body-lg);
    color: var(--on-surface-variant);
    max-width: 42rem;
}

.hero-rotating-circle {
    display: flex;
    justify-content: flex-end;
}

.rotating-circle {
    position: relative;
    width: 96px;
    height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: spin 10s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.rotating-circle svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.circle-text {
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    fill: var(--primary);
}

.rotating-circle .arrow-down {
    font-size: 24px;
    color: var(--primary);
    position: relative;
    z-index: 1;
}

/* ===== FILTERS ===== */
.filters-section {
    margin-bottom: 48px;
}

.filters-wrapper {
    display: flex;
    flex-wrap: nowrap;
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 16px;
    scrollbar-width: thin;
}

.filters-wrapper::-webkit-scrollbar {
    height: 4px;
}

.filters-wrapper::-webkit-scrollbar-track {
    background: var(--surface-variant);
    border-radius: 4px;
}

.filters-wrapper::-webkit-scrollbar-thumb {
    background: var(--outline-variant);
    border-radius: 4px;
}

.filter-btn {
    flex-shrink: 0;
    padding: 8px 24px;
    border: 1px solid rgba(0, 29, 17, 0.1);
    border-radius: 9999px;
    background: transparent;
    font-family: var(--font-body);
    font-size: var(--font-size-label-caps);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--on-surface-variant);
    opacity: 0.7;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-btn.active {
    border-color: var(--primary);
    color: var(--primary);
    font-weight: 700;
    opacity: 1;
}

.filter-btn:hover:not(.active) {
    opacity: 1;
    border-color: var(--primary);
    color: var(--primary);
}

/* ===== PROJECTS GRID ===== */
.projects-section {
    padding-bottom: var(--section-gap);
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 64px;
}

.project-card {
    cursor: pointer;
}

.project-image,
.project-image-wide {
    position: relative;
    overflow: hidden;
    background-color: var(--surface-container);
    margin-bottom: 24px;
    aspect-ratio: 4 / 3;
}

.project-image-wide {
    aspect-ratio: auto;
    height: 600px;
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

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

.project-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 29, 17, 0.2);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.overlay-btn {
    background-color: var(--surface);
    color: var(--primary);
    padding: 12px 32px;
    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;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-decoration: none;
    display: inline-block;
    cursor: pointer;
}

.project-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.project-title {
    font-size: var(--font-size-headline-xl);
    line-height: 1.3;
    color: var(--primary);
    margin-bottom: 4px;
}

.project-category {
    font-size: var(--font-size-label-caps);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--secondary);
}

/* ===== CTA SECTION ===== */
.cta-section {
    background-color: var(--primary);
    color: var(--on-primary);
    padding-top: var(--section-gap);
    padding-bottom: var(--section-gap);
    border-top: 1px solid rgba(0, 29, 17, 0.1);
    text-align: center;
}

.cta-title {
    font-size: var(--font-size-headline-xl);
    line-height: 1.3;
    color: var(--surface);
    margin-bottom: 32px;
}

.cta-description {
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.6;
    color: var(--on-primary-container);
    max-width: 42rem;
    margin: 0 auto 3rem;
    opacity: 0.9;
}

.btn-cta {
    display: inline-block;
    background-color: var(--primary-fixed);
    color: var(--primary);
    padding: 16px 48px;
    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;
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-cta:hover {
    background-color: rgba(194, 236, 212, 0.9);
    transform: translateY(-4px);
}

/* Footer styles consolidated in css/common.css */

/* ===== RESPONSIVE ===== */
@media (min-width: 768px) {
    .hero-grid {
        grid-template-columns: 2fr 1fr;
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--gutter);
        row-gap: 64px;
    }

    .footer-container {
        flex-direction: row;
        align-items: flex-start;
        text-align: left;
    }

    .footer-brand {
        text-align: left;
        margin-bottom: 0;
    }

    .footer-links {
        margin-bottom: 0;
    }
}

@media (min-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(12, 1fr);
        gap: var(--gutter);
        row-gap: 64px;
    }

    .project-card:first-child {
        grid-column: span 7;
    }

    .project-card:nth-child(2) {
        grid-column: span 5;
        margin-top: 128px;
    }

    .project-card:nth-child(3) {
        grid-column: span 12;
    }

    .project-card:nth-child(3) .project-image-wide {
        height: 600px;
    }

    .project-card:nth-child(4),
    .project-card:nth-child(5) {
        grid-column: span 6;
    }

    .hero-title {
        font-size: var(--font-size-display-lg);
    }

    .cta-title {
        font-size: var(--font-size-headline-xl);
    }
}

@media (max-width: 767px) {
    .nav-links {
        display: none;
    }

    .site-nav {
        padding-left: var(--margin-mobile);
        padding-right: var(--margin-mobile);
    }

    .main-container {
        padding-left: var(--margin-mobile);
        padding-right: var(--margin-mobile);
    }

    .hero-title {
        font-size: 48px;
    }

    .hero-rotating-circle {
        display: none;
    }

    .project-image-wide {
        height: 400px;
    }

    .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;
}