/* ============ Tokens ============ */
:root{
  --tinta: #26241f;
  --tinta-suave: #57534a;
  --plaster: #f5f1e8;
  --piedra: #e8e1d1;
  --piedra-linea: #d8cfb8;
  --ladrillo: #a8402f;
  --ladrillo-oscuro: #832f22;
  --salvia: #5c6b57;
  --laton: #b98f4f;

  --font-display: "Fraunces", serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --ink-fixed: #221f19;
  --ink-fixed-text: #f2ecdf;

  --radius: 3px;
  --maxw: 1180px;
}

[data-theme="oscuro"]{
  --tinta: #ece6d8;
  --tinta-suave: #a89f8c;
  --plaster: #131110;
  --piedra: #201d17;
  --piedra-linea: #3a352b;
}

*{ box-sizing: border-box; }

body, .card, .filters-card, .site-header, .select, .field input, .field textarea, .pill, .theme-toggle, .theme-toggle-dot{
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--plaster);
  color: var(--tinta);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a{ color: inherit; }

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

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ladrillo);
  margin: 0 0 0.9rem;
}

h1, h2{
  font-family: var(--font-display);
  font-weight: 500;
  margin: 0;
  color: var(--tinta);
}

/* ============ Buttons ============ */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.75rem 1.3rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary{
  background: var(--ladrillo);
  color: var(--ink-fixed-text);
}
.btn-primary:hover{ background: var(--ladrillo-oscuro); }
.btn-ghost{
  border-color: var(--tinta);
  color: var(--tinta);
  background: transparent;
}
.btn-ghost:hover{ background: var(--tinta); color: var(--plaster); }

/* ============ Header ============ */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 241, 232, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--piedra-linea);
}
[data-theme="oscuro"] .site-header{
  background: rgba(19, 17, 16, 0.88);
}
.header-inner{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.logo{
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--tinta);
  margin-right: auto;
}
.logo-mark{
  font-family: var(--font-mono);
  color: var(--ladrillo);
  font-size: 1.1rem;
  transform: rotate(90deg);
  display: inline-block;
}
.logo-text{
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.main-nav{
  display: flex;
  gap: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.main-nav a{ text-decoration: none; color: var(--tinta-suave); }
.main-nav a:hover{ color: var(--ladrillo); }
.header-cta{ flex-shrink: 0; }

.theme-toggle{
  position: relative;
  flex-shrink: 0;
  width: 40px;
  height: 22px;
  padding: 2px;
  margin-left: 0.85rem;
  border-radius: 20px;
  border: 1px solid var(--tinta);
  background: transparent;
  cursor: pointer;
}
.theme-toggle-dot{
  display: block;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--tinta);
  transform: translateX(0);
  transition: transform 0.2s ease, background-color 0.2s ease;
}
[data-theme="oscuro"] .theme-toggle{ border-color: var(--laton); }
[data-theme="oscuro"] .theme-toggle-dot{
  background: var(--laton);
  transform: translateX(16px);
}

@media (max-width: 720px){
  .main-nav{ display: none; }
  .header-cta{ padding: 0.6rem 0.9rem; font-size: 0.68rem; }
  .theme-toggle{ margin-left: 0.6rem; }
}

/* ============ Hero ============ */
.hero{
  position: relative;
  overflow: hidden;
  padding: 5.5rem 1.5rem 8rem;
  background: var(--ink-fixed);
  color: var(--ink-fixed-text);
}
.hero-grid{
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(245,241,232,0.07) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, rgba(245,241,232,0.07) 0 1px, transparent 1px 64px);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, black 40%, transparent 90%);
}
.hero-inner{
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
}
.hero .eyebrow{ color: var(--laton); }
.hero-title{
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.05;
  max-width: 16ch;
  color: white;
}
.hero-sub{
  max-width: 46ch;
  color: #cfc9ba;
  font-size: 1.05rem;
  margin: 1.4rem 0 0;
}
.hero-stats{
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
  padding-top: 1.75rem;
  border-top: 1px dashed rgba(36, 172, 77, 0.25);
  flex-wrap: wrap;
}
.stat{ display: flex; flex-direction: column; }
.stat-num{
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--laton);
}
.stat-label{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #a49d8c;
  margin-top: 0.2rem;
}

/* ============ Filters ============ */
.filters{
  max-width: var(--maxw);
  margin: -4rem auto 0;
  padding: 0 1.5rem 5rem;
  position: relative;
}
.filters-card{
  background: var(--plaster);
  border: 1px solid var(--tinta);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem;
  align-items: center;
  box-shadow: 6px 6px 0 var(--piedra-linea);
}
.filter-group{ display: flex; align-items: center; gap: 0.8rem; }
.filter-label{
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--tinta-suave);
}
.pill-set{ display: flex; gap: 0.4rem; }
.pill{
  font-family: var(--font-mono);
  font-size: 0.76rem;
  padding: 0.45rem 0.85rem;
  border-radius: 20px;
  border: 1px solid var(--piedra-linea);
  background: transparent;
  color: var(--tinta);
  cursor: pointer;
  transition: all 0.15s ease;
}
.pill:hover{ border-color: var(--ladrillo); }
.pill.is-active{
  background: var(--tinta);
  border-color: var(--tinta);
  color: var(--plaster);
}
.filter-group-select{ margin-left: auto; }
.select{
  font-family: var(--font-mono);
  font-size: 0.76rem;
  padding: 0.5rem 0.7rem;
  border-radius: var(--radius);
  border: 1px solid var(--piedra-linea);
  background: var(--plaster);
  color: var(--tinta);
}

@media (max-width: 720px){
  .filters{ margin-top: -2.5rem; }
  .filters-card{ padding: 1.1rem; gap: 1.1rem; }
  .filter-group-select{ margin-left: 0; width: 100%; }
  .select{ width: 100%; }
}

.results-count{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--tinta-suave);
  margin: 1.75rem 0 1rem;
}
.results-count span{ color: var(--ladrillo); font-weight: 600; }

.empty-state{
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--tinta-suave);
  padding: 2rem;
  text-align: center;
  border: 1px dashed var(--piedra-linea);
  border-radius: var(--radius);
}

/* ============ Listing grid ============ */
.listing-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card{
  background: var(--piedra);
  border: 1px solid var(--piedra-linea);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover{
  transform: translateY(-3px);
  box-shadow: 5px 5px 0 var(--ladrillo);
}

.card-media{
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--piedra-linea);
}
.card-media img{ width: 100%; height: 100%; object-fit: cover; }
.badge{
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  border-radius: 2px;
  color: var(--ink-fixed-text);
}
.badge-venta{ background: var(--ladrillo); }
.badge-alquiler{ background: var(--salvia); }

.card-body{
  padding: 1.1rem 1.2rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex-grow: 1;
}
.card-title{
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
}
.card-address{
  font-size: 0.85rem;
  color: var(--tinta-suave);
  margin-top: -0.4rem;
}
.card-specs{
  display: flex;
  gap: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--tinta-suave);
  border-top: 1px dashed var(--piedra-linea);
  border-bottom: 1px dashed var(--piedra-linea);
  padding: 0.6rem 0;
  margin-top: 0.2rem;
}
.card-specs span{
  padding: 0 0.7rem;
  border-right: 1px dashed var(--piedra-linea);
}
.card-specs span:first-child{ padding-left: 0; }
.card-specs span:last-child{ border-right: none; }

.card-footer{
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 0.4rem;
}
.card-price{
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--tinta);
}
.card-price small{
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--tinta-suave);
  display: block;
  font-weight: normal;
}
.card-link{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--ladrillo);
  border-bottom: 1px solid var(--ladrillo);
  padding-bottom: 2px;
}

/* ============ About ============ */
.about{
  background: var(--ink-fixed);
  color: var(--ink-fixed-text);
  padding: 5rem 1.5rem;
}
.about-inner{ max-width: 620px; margin: 0 auto; text-align: center; }
.about h2{ color: var(--ink-fixed-text); font-size: clamp(1.6rem, 4vw, 2.4rem); }
.about-text{ color: #cfc9ba; margin-top: 1.1rem; font-size: 1rem; }

/* ============ Contact ============ */
.contact{ padding: 5rem 1.5rem; }
.contact-inner{
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.contact h2{ font-size: clamp(1.6rem, 4vw, 2.2rem); margin-top: 0.4rem; }
.contact-copy .about-text{ color: var(--tinta-suave); }

.contact-form{
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  background: var(--piedra);
  border: 1px solid var(--piedra-linea);
  border-radius: var(--radius);
  padding: 1.75rem;
}
.field{ display: flex; flex-direction: column; gap: 0.4rem; }
.field span{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--tinta-suave);
}
.field input, .field textarea{
  font-family: var(--font-body);
  font-size: 0.92rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--piedra-linea);
  border-radius: var(--radius);
  background: var(--plaster);
  color: var(--tinta);
  resize: vertical;
}
.contact-form .btn{ align-self: flex-start; margin-top: 0.3rem; }

@media (max-width: 800px){
  .contact-inner{ grid-template-columns: 1fr; }
}

/* ============ Footer ============ */
.site-footer{
  border-top: 1px solid var(--piedra-linea);
  padding: 2rem 1.5rem;
}
.footer-inner{
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--tinta-suave);
}