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

:root {
    --color-bg:   #ffffff;
    --color-text: #111111;
    --color-muted:#888888;
    --font-main:  'Times New Roman', Times, serif;
    --gap:        2px;
    --header-h:   56px;
}

* { font-family: var(--font-main); font-size: 14px; line-height: 16px; font-weight: normal; font-style: normal; letter-spacing: 0; text-transform: none; }

html, body { font-size: 14px; line-height: 16px; overflow: hidden; height: 100%; }

body {
    background: var(--color-bg);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
}

img { display: block; width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

/* ─── Header ────────────────────────────────────────────────── */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: var(--header-h);
    display: flex;
    align-items: center;
    padding: 0 24px;
    background: var(--color-bg);
}

.site-logo {}

/* ─── Grid de proyectos ─────────────────────────────────────── */
.proyectos-grid {
    margin-top: var(--header-h);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}

@media (max-width: 900px) {
    .proyectos-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
    .proyectos-grid { grid-template-columns: 1fr; }
}

.proyecto-card { position: relative; overflow: hidden; }

.proyecto-card__link { display: block; }

.proyecto-card__img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform 0.4s ease, filter 0.4s ease;
}

.proyecto-card:hover .proyecto-card__img {
    transform: scale(1.03);
    filter: brightness(0.85);
}

.proyecto-card__info {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 16px;
    background: linear-gradient(transparent, rgba(0,0,0,0.5));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.proyecto-card:hover .proyecto-card__info { opacity: 1; }

.proyecto-card__title {
    color: #fff;
}

/* ─── Página de proyecto ────────────────────────────────────── */
.proyecto-single {
    margin-top: var(--header-h);
    padding: 40px 24px 80px;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.proyecto-single__title {
    margin-bottom: 32px;
    color: var(--color-muted);
}

/* ─── Galería ───────────────────────────────────────────────── */
.galeria {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}

@media (max-width: 900px) {
    .galeria { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
    .galeria { grid-template-columns: 1fr; }
}

.galeria__item { display: block; overflow: hidden; cursor: zoom-in; }

.galeria__item img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.galeria__item:hover img { transform: scale(1.03); }

/* ─── Lightbox ──────────────────────────────────────────────── */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(0,0,0,0.95);
    align-items: center;
    justify-content: center;
}

.lightbox.is-open {
    display: flex;
}

.lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    width: auto;
    height: auto;
    object-fit: contain;
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
    position: absolute;
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    line-height: 1;
    padding: 12px;
    opacity: 0.7;
    transition: opacity 0.2s;
}
.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover { opacity: 1; }

.lightbox__close { top: 16px; right: 16px; }
.lightbox__prev  { left: 16px; top: 50%; transform: translateY(-50%); }
.lightbox__next  { right: 16px; top: 50%; transform: translateY(-50%); }

/* ─── Home intro ────────────────────────────────────────────── */
.home-intro {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.home-intro__text {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.home-intro__text a { text-decoration: underline; }

/* ─── Footer ────────────────────────────────────────────────── */
.site-footer {
    padding: 24px;
    text-align: center;
    color: var(--color-muted);
}