/* =============================================================================
   Habitax Ventas · hoja de estilo del sitio público

   Sin framework ni paso de compilación: un sistema de diseño pequeño escrito a
   mano (variables, contenedor, rejilla, tarjetas, formularios y tablas) que el
   navegador entiende tal cual. Menos dependencias, menos peso y ninguna
   sorpresa al desplegar.
   ========================================================================== */

:root {
    --color-bg: #f7f8fa;
    --color-surface: #ffffff;
    --color-ink: #16181d;
    --color-muted: #5b6371;
    --color-line: #e3e6eb;
    --color-brand: #0f5c4d;
    --color-brand-ink: #ffffff;
    --color-brand-soft: #e6f2ef;
    --color-accent: #b4530a;
    --color-danger: #b3261e;
    --color-success: #1c6b3c;

    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 8px 24px rgba(16, 24, 40, .06);
    --container: 1180px;
    --space: 1rem;

    --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-ink);
    background: var(--color-bg);
}

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

a { color: var(--color-brand); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.25; margin: 0 0 .5rem; }
h1 { font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.4rem); }
h2 { font-size: clamp(1.25rem, 1.1rem + .7vw, 1.6rem); }
h3 { font-size: 1.1rem; }

p { margin: 0 0 .75rem; }

.muted { color: var(--color-muted); }
.small { font-size: .875rem; }
.link { font-weight: 600; }

.container { width: min(100% - 2rem, var(--container)); margin-inline: auto; }

.skip-link {
    position: absolute; left: -9999px;
    background: var(--color-surface); padding: .75rem 1rem; border-radius: var(--radius-sm);
    z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }

/* --- Cabecera ------------------------------------------------------------- */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-line);
    position: sticky; top: 0; z-index: 20;
}
.site-header__inner {
    display: flex; align-items: center; gap: 1rem;
    min-height: 68px; flex-wrap: wrap;
}
.brand { display: inline-flex; align-items: center; gap: .6rem; font-weight: 700; color: var(--color-ink); }
.brand:hover { text-decoration: none; }
.brand__mark {
    display: grid; place-items: center; width: 34px; height: 34px;
    background: var(--color-brand); color: var(--color-brand-ink);
    border-radius: 10px; font-weight: 800;
}
.site-nav { display: flex; gap: 1rem; margin-left: auto; flex-wrap: wrap; }
.site-nav a { color: var(--color-ink); font-weight: 500; }

.lang-switch { display: flex; gap: .35rem; align-items: center; }
.lang-switch a, .lang-switch__current {
    padding: .25rem .5rem; border-radius: 6px; border: 1px solid var(--color-line);
    font-size: .8rem; font-weight: 600;
}
.lang-switch__current { background: var(--color-brand); color: var(--color-brand-ink); border-color: var(--color-brand); }

.nav-toggle, .nav-toggle__label { display: none; }

/* --- Botones -------------------------------------------------------------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
    padding: .65rem 1.1rem; border-radius: var(--radius-sm); border: 1px solid transparent;
    font: inherit; font-weight: 600; cursor: pointer; text-align: center;
}
.btn:hover { text-decoration: none; }
.btn--primary { background: var(--color-brand); color: var(--color-brand-ink); }
.btn--primary:hover { background: #0b4739; }
.btn--ghost { background: var(--color-surface); color: var(--color-ink); border-color: var(--color-line); }
.btn--ghost:hover { border-color: var(--color-brand); }
.btn--block { width: 100%; }

/* --- Estructura ----------------------------------------------------------- */
.page { padding: 1.5rem 0 3rem; }
.page__head { margin-bottom: 1.5rem; }
.section { padding: 2.5rem 0; }
.section--alt { background: var(--color-surface); border-block: 1px solid var(--color-line); }
.section__head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }

.grid { display: grid; gap: 1.25rem; }
.grid--cards { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.grid--markets { grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }

.breadcrumbs { display: flex; gap: .4rem; flex-wrap: wrap; font-size: .875rem; color: var(--color-muted); margin-bottom: 1rem; }

/* --- Portada -------------------------------------------------------------- */
.hero { background: linear-gradient(180deg, var(--color-brand-soft), var(--color-bg)); padding: 2.5rem 0; }
.hero__inner { display: grid; gap: 2rem; grid-template-columns: 1.4fr 1fr; align-items: start; }
.hero__lead { font-size: 1.05rem; color: var(--color-muted); max-width: 52ch; }
.hero__actions { display: flex; gap: .75rem; flex-wrap: wrap; margin: 1rem 0; }
.hero__stats { display: flex; gap: 1.75rem; margin: 1rem 0 0; flex-wrap: wrap; }
.hero__stats dt { font-size: .8rem; color: var(--color-muted); text-transform: uppercase; letter-spacing: .04em; }
.hero__stats dd { margin: 0; font-size: 1.5rem; font-weight: 700; }

/* --- Tarjetas / panel ----------------------------------------------------- */
.panel {
    background: var(--color-surface); border: 1px solid var(--color-line);
    border-radius: var(--radius); padding: 1.25rem; box-shadow: var(--shadow);
}
.panel--tight { padding: 1rem; }
.panel--cta { display: grid; gap: .5rem; justify-items: start; }
.panel--placeholder { display: grid; place-items: center; min-height: 220px; text-align: center; }
.panel__title { margin-bottom: .75rem; }

.card {
    background: var(--color-surface); border: 1px solid var(--color-line);
    border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
    display: flex; flex-direction: column;
}
.card__media { position: relative; display: block; aspect-ratio: 4 / 3; background: var(--color-line); }
.card__media img { width: 100%; height: 100%; object-fit: cover; }
.card__placeholder { width: 100%; height: 100%; background: repeating-linear-gradient(45deg, #eef0f4, #eef0f4 10px, #e6e9ef 10px, #e6e9ef 20px); }
.card__body { padding: 1rem; display: flex; flex-direction: column; gap: .35rem; }
.card__title { font-size: 1.05rem; margin: 0; }
.card__title a { color: var(--color-ink); }
.card__price { font-size: 1.2rem; font-weight: 700; margin: .25rem 0 0; }
.card__specs { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; padding: 0; margin: .25rem 0; font-size: .875rem; color: var(--color-muted); }
.card__specs li::after { content: "·"; margin-left: .5rem; color: var(--color-line); }
.card__specs li:last-child::after { content: ""; }
.card__ref { margin: 0; }

.badge {
    position: absolute; top: .75rem; left: .75rem;
    padding: .2rem .55rem; border-radius: 999px; font-size: .75rem; font-weight: 700;
    background: var(--color-surface); color: var(--color-ink); border: 1px solid var(--color-line);
}
.badge--sale { background: var(--color-brand); color: var(--color-brand-ink); border-color: transparent; }
.badge--rent { background: var(--color-accent); color: #fff; border-color: transparent; }

/* --- Mercados ------------------------------------------------------------- */
.market {
    display: grid; gap: .35rem; padding: 1.25rem; background: var(--color-surface);
    border: 1px solid var(--color-line); border-radius: var(--radius); box-shadow: var(--shadow);
    color: var(--color-ink);
}
.market:hover { text-decoration: none; border-color: var(--color-brand); }
.market__code { font-size: .8rem; font-weight: 700; color: var(--color-brand); letter-spacing: .08em; }
.market__name { font-size: 1.15rem; font-weight: 700; }
.market--card { align-content: start; }

.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip {
    padding: .4rem .75rem; border: 1px solid var(--color-line); border-radius: 999px;
    background: var(--color-surface); color: var(--color-ink); font-size: .9rem;
}
.chip:hover { border-color: var(--color-brand); text-decoration: none; }

/* --- Búsqueda ------------------------------------------------------------- */
.search-layout { display: grid; grid-template-columns: 300px 1fr; gap: 1.5rem; align-items: start; }
.filters { background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius); padding: 1.25rem; position: sticky; top: 88px; }
.filters__title { font-size: 1rem; text-transform: uppercase; letter-spacing: .04em; color: var(--color-muted); }
.filters__actions { display: grid; gap: .5rem; margin-top: .75rem; }
.results__head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

.field { margin-bottom: .85rem; display: grid; gap: .3rem; }
.field--row { grid-template-columns: 1fr 1fr; gap: .75rem; }
.field--row > div { display: grid; gap: .3rem; }
.field label { font-size: .85rem; font-weight: 600; color: var(--color-muted); }
.field__error { color: var(--color-danger); font-size: .85rem; margin: 0; }
.field--error .input { border-color: var(--color-danger); }

.input {
    width: 100%; padding: .6rem .7rem; font: inherit; color: var(--color-ink);
    background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-sm);
}
.input:focus { border-color: var(--color-brand); }
textarea.input { resize: vertical; min-height: 96px; }
.checkbox { width: 1.1rem; height: 1.1rem; }

.hp { position: absolute; left: -9999px; }

/* --- Ficha de inmueble ---------------------------------------------------- */
.property__layout { display: grid; grid-template-columns: 1fr 340px; gap: 1.5rem; align-items: start; }
.property__main { display: grid; gap: 1.25rem; }
.property__aside { display: grid; gap: 1.25rem; position: sticky; top: 88px; }
.property__head h1 { margin-bottom: .35rem; }
.property__price { display: grid; gap: .15rem; margin: .5rem 0 0; }
.property__amount { font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem); font-weight: 800; }

.gallery { display: grid; gap: .75rem; }
.gallery__stage { margin: 0; border-radius: var(--radius); overflow: hidden; background: var(--color-line); aspect-ratio: 16 / 10; }
.gallery__stage img { width: 100%; height: 100%; object-fit: cover; }
.gallery__placeholder { width: 100%; height: 100%; background: repeating-linear-gradient(45deg, #eef0f4, #eef0f4 12px, #e6e9ef 12px, #e6e9ef 24px); }
.gallery__thumbs { display: flex; gap: .5rem; list-style: none; padding: 0; margin: 0; overflow-x: auto; }
.gallery__thumb { display: block; width: 92px; height: 68px; border-radius: var(--radius-sm); overflow: hidden; border: 2px solid transparent; }
.gallery__thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery__thumb:hover, .gallery__thumb[aria-current="true"] { border-color: var(--color-brand); }

.specs { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.specs li { display: flex; justify-content: space-between; gap: 1rem; padding-bottom: .4rem; border-bottom: 1px dashed var(--color-line); }
.specs__label { color: var(--color-muted); font-size: .9rem; }
.specs__value { font-weight: 600; }

.prose { max-width: 70ch; }

/* --- Tablas --------------------------------------------------------------- */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.table th, .table td { padding: .5rem .6rem; border-bottom: 1px solid var(--color-line); text-align: right; }
.table th:first-child, .table td:first-child { text-align: left; }
.table thead th { background: var(--color-bg); font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--color-muted); }

/* --- Simulador ------------------------------------------------------------ */
.sim-layout { display: grid; grid-template-columns: 340px 1fr; gap: 1.5rem; align-items: start; }
.sim-results { display: grid; gap: 1.25rem; }
.sim-results__headline { font-size: clamp(1.6rem, 1.3rem + 1.4vw, 2.2rem); font-weight: 800; margin: 0; color: var(--color-brand); }
.sim-results__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; margin: 1rem 0 0; }
.sim-results__grid dt { font-size: .8rem; color: var(--color-muted); text-transform: uppercase; letter-spacing: .04em; }
.sim-results__grid dd { margin: .2rem 0 0; font-weight: 700; }

/* --- Avisos y vacíos ------------------------------------------------------ */
.alert { padding: .85rem 1rem; border-radius: var(--radius-sm); margin: 1rem 0; border: 1px solid; }
.alert--success { background: #eaf7ef; border-color: #bfe3cd; color: var(--color-success); }
.alert--error { background: #fdecea; border-color: #f5c6c2; color: var(--color-danger); }

.empty { display: grid; gap: .35rem; justify-items: start; padding: 2rem; background: var(--color-surface); border: 1px dashed var(--color-line); border-radius: var(--radius); }
.empty--big { justify-items: center; text-align: center; padding: 3.5rem 1.5rem; }
.empty__code { font-size: 3rem; font-weight: 800; color: var(--color-brand-soft); margin: 0; }

/* --- Paginación ----------------------------------------------------------- */
.pagination { display: flex; gap: .4rem; justify-content: center; margin: 2rem 0 0; }
.pagination__link, .pagination__current {
    min-width: 40px; padding: .45rem .6rem; text-align: center;
    border: 1px solid var(--color-line); border-radius: var(--radius-sm); background: var(--color-surface);
}
.pagination__current { background: var(--color-brand); color: var(--color-brand-ink); border-color: var(--color-brand); font-weight: 700; }

/* --- Pie ------------------------------------------------------------------ */
.site-footer { background: var(--color-ink); color: #e9ecf1; margin-top: 3rem; padding: 2.5rem 0; }
.site-footer a { color: #ffffff; }
.site-footer__grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 2rem; }
.site-footer__brand { font-weight: 800; font-size: 1.1rem; margin-bottom: .25rem; }
.site-footer__title { font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; color: #a7b0be; }
.site-footer__list { list-style: none; padding: 0; margin: 0; display: grid; gap: .85rem; font-size: .9rem; }
.site-footer .muted { color: #a7b0be; }

/* --- Adaptación a pantallas pequeñas -------------------------------------- */
@media (max-width: 980px) {
    .hero__inner, .search-layout, .property__layout, .sim-layout, .site-footer__grid { grid-template-columns: 1fr; }
    .filters, .property__aside { position: static; }
}

@media (max-width: 700px) {
    .site-nav { display: none; width: 100%; }
    .nav-toggle__label { display: grid; gap: 4px; margin-left: auto; cursor: pointer; padding: .5rem; }
    .nav-toggle__label span { display: block; width: 22px; height: 2px; background: var(--color-ink); }
    .nav-toggle:checked ~ .site-nav { display: flex; flex-direction: column; padding-bottom: .75rem; }
    .field--row { grid-template-columns: 1fr; }
    .lang-switch { margin-left: auto; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * { transition: none !important; }
}

@media print {
    .site-header, .site-footer, .filters, .property__aside, .hero__actions { display: none; }
    body { background: #fff; }
}