/* ============================================================
   Homes & House — Sistema de diseño
   Paleta y tipografía derivadas del Brand Book (Capítulo 2)
   ============================================================ */

:root {
  /* Paleta */
  --primary: #0F172A;      /* Slate 900 */
  --accent: #F59E0B;       /* Amber 500 */
  --accent-dark: #D97706;
  --surface: #FFFFFF;
  --muted: #9CA3AF;        /* Gray 400 */
  --success: #10B981;      /* Emerald 500 */
  --destructive: #EF4444;  /* Red 500 */
  --border: #E5E7EB;
  --surface-alt: #F8F7F4;

  /* Espaciado — grid base 4px */
  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px;
  --sp-6: 24px; --sp-8: 32px; --sp-12: 48px; --sp-16: 64px; --sp-24: 96px;

  /* Radios */
  --r-sm: 4px; --r-md: 8px; --r-lg: 12px; --r-xl: 16px; --r-full: 9999px;

  /* Sombras */
  --shadow-sm: 0 1px 3px 0 rgb(15 23 42 / 0.08), 0 1px 2px -1px rgb(15 23 42 / 0.08);
  --shadow-md: 0 12px 32px -8px rgb(15 23 42 / 0.25);

  /* Transiciones */
  --t-hover: 150ms ease-out;
  --t-modal: 300ms ease-in-out;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: var(--primary);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.mono { font-family: "JetBrains Mono", "SF Mono", monospace; }

h1, h2, h3, h4 {
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.container {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--sp-4);
}

@media (min-width: 768px) { .container { padding-inline: var(--sp-6); } }
@media (min-width: 1024px) { .container { padding-inline: var(--sp-12); } }

/* Accesibilidad — focus visible */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ============================================================
   Botones
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-weight: 600;
  font-size: 0.95rem;
  padding: var(--sp-3) var(--sp-6);
  border-radius: var(--r-lg);
  transition: background-color var(--t-hover), color var(--t-hover), border-color var(--t-hover);
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--primary); }
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary { background: var(--surface); color: var(--primary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--surface-alt); }
.btn-ghost { color: var(--surface); }
.btn-ghost:hover { color: var(--accent); }
.btn-block { width: 100%; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--primary);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 88px;
}
.logo { display: flex; align-items: center; gap: var(--sp-2); color: var(--surface); }
.logo svg { height: 30px; width: auto; }
.logo-img { height: 58px; width: auto; }
.logo-text { font-weight: 800; font-size: 1.15rem; letter-spacing: -0.02em; }
.logo-text span { color: var(--accent); }

.main-nav { display: none; gap: var(--sp-8); align-items: center; }
.main-nav a { color: rgba(255,255,255,0.85); font-size: 0.92rem; font-weight: 500; transition: color var(--t-hover); }
.main-nav a:hover { color: var(--surface); }
.header-actions { display: flex; align-items: center; gap: var(--sp-4); }
.header-actions .btn-primary { padding: var(--sp-2) var(--sp-4); font-size: 0.88rem; }
.nav-toggle { display: block; color: var(--surface); font-size: 1.5rem; background: none; }

@media (min-width: 900px) {
  .main-nav { display: flex; }
  .nav-toggle { display: none; }
}

.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--primary);
  padding: var(--sp-4) var(--sp-4) var(--sp-6);
  gap: var(--sp-1);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.mobile-nav.open { display: flex; }
.mobile-nav a { color: rgba(255,255,255,0.9); padding: var(--sp-3) var(--sp-2); font-weight: 500; }

/* ============================================================
   Hero — con el faro de Mazatlán como elemento de firma
   ============================================================ */
.hero {
  position: relative;
  background: var(--primary);
  color: var(--surface);
  overflow: hidden;
  padding-block: var(--sp-24) var(--sp-16);
}
.hero-beam {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 900px 500px at 78% 30%, rgba(245,158,11,0.16), transparent 65%);
  pointer-events: none;
}
.hero-lighthouse {
  position: absolute;
  right: -40px; top: 50%; transform: translateY(-52%);
  height: 480px; width: auto;
  opacity: 0.9;
}
.hero .container { position: relative; z-index: 2; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--accent); margin-bottom: var(--sp-4);
}
.hero-eyebrow::before { content: ""; width: 20px; height: 1px; background: var(--accent); }
.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  max-width: 16ch;
  margin-bottom: var(--sp-6);
}
.hero p {
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem;
  max-width: 46ch;
  margin-bottom: var(--sp-8);
}
.hero-ctas { display: flex; gap: var(--sp-4); flex-wrap: wrap; margin-bottom: var(--sp-16); }

/* Buscador flotante */
.search-panel {
  background: var(--surface);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
  padding: var(--sp-6);
  display: grid;
  gap: var(--sp-4);
  max-width: 880px;
}
.search-grid { display: grid; gap: var(--sp-4); grid-template-columns: 1fr; }
@media (min-width: 700px) { .search-grid { grid-template-columns: repeat(4, 1fr) auto; align-items: end; } }
.field label {
  display: block; font-size: 0.78rem; font-weight: 600; color: var(--primary);
  margin-bottom: var(--sp-1); text-transform: uppercase; letter-spacing: 0.03em;
}
.field select, .field input {
  width: 100%; padding: var(--sp-3); border: 1px solid var(--border); border-radius: var(--r-md);
  font-family: inherit; font-size: 0.92rem; color: var(--primary); background: var(--surface);
}

/* ============================================================
   Stats bar
   ============================================================ */
.stats-bar {
  background: var(--surface-alt);
  border-bottom: 1px solid var(--border);
}
.stats-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-8);
  padding-block: var(--sp-8);
}
@media (min-width: 768px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }
.stat-num { font-family: "JetBrains Mono", monospace; font-size: 2rem; font-weight: 500; color: var(--primary); }
.stat-label { color: var(--muted); font-size: 0.85rem; margin-top: var(--sp-1); }

/* ============================================================
   Secciones generales
   ============================================================ */
.section { padding-block: var(--sp-24); }
.section-alt { background: var(--surface-alt); }
.section-head {
  display: flex; align-items: flex-end; justify-content: space-between; flex-wrap: wrap;
  gap: var(--sp-4); margin-bottom: var(--sp-8);
}
.section-eyebrow {
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent);
  display: block; margin-bottom: var(--sp-2);
}
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.section-head p { color: var(--muted); max-width: 46ch; margin-top: var(--sp-2); }

/* ============================================================
   Cards de propiedad
   ============================================================ */
.property-grid {
  display: grid; gap: var(--sp-6);
  grid-template-columns: 1fr;
}
@media (min-width: 700px) { .property-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .property-grid { grid-template-columns: repeat(3, 1fr); } }

.card-property {
  background: var(--surface);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: transform var(--t-hover), box-shadow var(--t-hover);
}
.card-property:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

.card-photo {
  position: relative;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #1E293B 0%, #0F172A 55%, #422006 130%);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.card-photo img { width: 100%; height: 100%; object-fit: cover; position: relative; z-index: 2; }
.card-photo svg { width: 56px; height: 56px; opacity: 0.9; position: relative; z-index: 1; }
.card-photo::after {
  content: ""; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 90px; height: 90px; border-radius: var(--r-full); background: rgba(255,255,255,0.08);
}
.card-badge {
  position: absolute; top: var(--sp-3); left: var(--sp-3);
  background: rgba(15,23,42,0.85); color: var(--surface);
  font-size: 0.72rem; font-weight: 600; padding: var(--sp-1) var(--sp-3);
  border-radius: var(--r-full); text-transform: uppercase; letter-spacing: 0.03em;
}
.card-badge-op {
  position: absolute; top: var(--sp-3); left: calc(var(--sp-3) + 68px);
  background: var(--accent); color: var(--primary);
  font-size: 0.72rem; font-weight: 700; padding: var(--sp-1) var(--sp-3);
  border-radius: var(--r-full); text-transform: uppercase; letter-spacing: 0.03em;
}
.card-badge-op.renta { background: #38BDF8; }
.card-fav {
  position: absolute; top: var(--sp-3); right: var(--sp-3);
  width: 34px; height: 34px; border-radius: var(--r-full);
  background: rgba(255,255,255,0.92);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); transition: color var(--t-hover), transform var(--t-hover);
}
.card-fav:hover { transform: scale(1.08); }
.card-fav.active { color: var(--destructive); }
.card-fav svg { width: 17px; height: 17px; }

.card-body { padding: var(--sp-4) var(--sp-4) var(--sp-6); }
.card-zone { color: var(--muted); font-size: 0.82rem; margin-bottom: var(--sp-1); display: flex; align-items: center; gap: 5px; }
.card-title { font-size: 1.05rem; font-weight: 700; margin-bottom: var(--sp-3); }
.card-price { font-family: "JetBrains Mono", monospace; font-size: 1.25rem; color: var(--primary); margin-bottom: var(--sp-3); }
.card-meta { display: flex; gap: var(--sp-4); color: var(--muted); font-size: 0.85rem; border-top: 1px solid var(--border); padding-top: var(--sp-3); }
.card-meta span { display: flex; align-items: center; gap: 5px; }
.card-meta svg { width: 15px; height: 15px; }

/* ============================================================
   Zonas
   ============================================================ */
.zone-grid {
  display: grid; gap: var(--sp-4); grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 700px) { .zone-grid { grid-template-columns: repeat(4, 1fr); } }
.zone-card {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: var(--r-lg);
  overflow: hidden;
  background-color: var(--primary);
  background-size: cover;
  background-position: center;
  display: flex; align-items: flex-end; padding: var(--sp-4);
  transition: transform var(--t-hover);
}
.zone-card:hover { transform: translateY(-2px); }
.zone-card span { color: var(--surface); font-weight: 700; font-size: 1rem; position: relative; z-index: 1; }
.zone-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.55), transparent 55%); }

/* ============================================================
   CTA final
   ============================================================ */
.cta-band {
  background: var(--primary);
  color: var(--surface);
  border-radius: var(--r-xl);
  padding: var(--sp-16) var(--sp-8);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 600px 300px at 50% 0%, rgba(245,158,11,0.18), transparent 70%);
}
.cta-band h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); margin-bottom: var(--sp-4); position: relative; }
.cta-band p { color: rgba(255,255,255,0.7); max-width: 50ch; margin-inline: auto var(--sp-8); margin-bottom: var(--sp-8); position: relative; }
.cta-band .btn { position: relative; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: var(--primary); color: rgba(255,255,255,0.65); padding-block: var(--sp-16) var(--sp-8); }
.footer-grid {
  display: grid; gap: var(--sp-8); grid-template-columns: 1fr;
  padding-bottom: var(--sp-12); border-bottom: 1px solid rgba(255,255,255,0.08); margin-bottom: var(--sp-6);
}
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer-brand p { max-width: 34ch; margin-top: var(--sp-3); font-size: 0.9rem; }
.footer-col h4 { color: var(--surface); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: var(--sp-4); }
.footer-col a { display: block; font-size: 0.9rem; padding-block: var(--sp-1); transition: color var(--t-hover); }
.footer-col a:hover { color: var(--surface); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--sp-4); font-size: 0.82rem; }

/* ============================================================
   Formularios (contacto, ficha)
   ============================================================ */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-8);
  box-shadow: var(--shadow-sm);
}
.form-row { display: grid; gap: var(--sp-4); margin-bottom: var(--sp-4); }
@media (min-width: 600px) { .form-row.two-col { grid-template-columns: 1fr 1fr; } }
.field-label {
  display: flex; gap: var(--sp-1); font-size: 0.85rem; font-weight: 600; margin-bottom: var(--sp-2);
}
.field-label .req { color: var(--destructive); }
.form-card input, .form-card select, .form-card textarea {
  width: 100%; padding: var(--sp-3); border: 1px solid var(--border); border-radius: var(--r-md);
  font-family: inherit; font-size: 0.95rem; transition: border-color var(--t-hover);
}
.form-card input:focus, .form-card select:focus, .form-card textarea:focus { border-color: var(--accent); }
.form-error { color: var(--destructive); font-size: 0.82rem; margin-top: var(--sp-1); display: none; }
.field.invalid .form-error { display: block; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: var(--destructive); }
.form-success {
  display: none; background: rgba(16,185,129,0.1); border: 1px solid var(--success);
  color: #047857; padding: var(--sp-4); border-radius: var(--r-md); font-size: 0.9rem; margin-top: var(--sp-4);
}

/* ============================================================
   Filtros de catálogo
   ============================================================ */
.filters-bar {
  background: var(--surface-alt);
  border-bottom: 1px solid var(--border);
  padding-block: var(--sp-6);
}
.filters-grid { display: grid; gap: var(--sp-3); grid-template-columns: 1fr; }
@media (min-width: 800px) { .filters-grid { grid-template-columns: repeat(4, 1fr) auto; } }
.results-count { color: var(--muted); font-size: 0.9rem; margin-block: var(--sp-6); }

/* ============================================================
   Utilidades
   ============================================================ */
.badge-status {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.78rem; font-weight: 600; padding: var(--sp-1) var(--sp-3); border-radius: var(--r-full);
  background: rgba(16,185,129,0.12); color: #047857;
}

/* Blog */
.blog-grid { display: grid; gap: var(--sp-6); grid-template-columns: 1fr; }
@media (min-width: 700px) { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .blog-grid { grid-template-columns: repeat(3, 1fr); } }
.blog-cover {
  aspect-ratio: 16/9; display:flex; align-items:center; justify-content:center;
  position: relative; overflow: hidden;
}
.blog-cover span.zone-label {
  position: absolute; bottom: var(--sp-3); left: var(--sp-3);
  color: white; font-weight: 700; font-size: 1rem; z-index: 1;
}
.blog-cover::after { content:""; position:absolute; inset:0; background: linear-gradient(to top, rgba(0,0,0,0.5), transparent 55%); }
.blog-meta-row { display:flex; gap: var(--sp-3); color: var(--muted); font-size: 0.78rem; margin-bottom: var(--sp-2); text-transform: uppercase; letter-spacing: 0.03em; }
.blog-excerpt { color: #4B5563; font-size: 0.92rem; margin-top: var(--sp-2); }
.article-body { max-width: 68ch; margin-inline: auto; }
.article-body p { color: #374151; margin-bottom: var(--sp-4); font-size: 1.02rem; }
.article-body h2 { font-size: 1.4rem; margin-top: var(--sp-8); margin-bottom: var(--sp-3); }
.article-hero { aspect-ratio: 21/9; border-radius: var(--r-lg); overflow: hidden; margin-bottom: var(--sp-8); position:relative; }
.article-hero::after { content:""; position:absolute; inset:0; background: linear-gradient(to top, rgba(0,0,0,0.45), transparent 50%); }
.text-center { text-align: center; }
.mt-8 { margin-top: var(--sp-8); }
.placeholder-note {
  font-size: 0.75rem; color: var(--muted); text-align: center; padding: var(--sp-2);
  background: #FEF3C7; border-top: 1px dashed #F59E0B;
}

/* ============================================================
   Botón flotante de WhatsApp
   ============================================================ */
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 100;
  width: 56px;
  height: 56px;
  background: #25D366;
  border-radius: var(--r-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(0,0,0,0.25);
  transition: transform var(--t-hover);
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg { width: 30px; height: 30px; }

@media (max-width: 600px) {
  .whatsapp-float { bottom: 16px; right: 16px; width: 52px; height: 52px; }
}