/* ── Color Palette ──────────────────────────────────────────────── */
:root {
  --color-primary:       #1a4f8a;
  --color-primary-light: #2d6cb8;
  --color-primary-dark:  #0d3360;
  --color-accent:        #e8a020;
  --color-text:          #1a1a2e;
  --color-text-muted:    #6b7280;
  --color-bg:            #ffffff;
  --color-bg-soft:       #f8f9fa;
  --color-border:        #e5e7eb;
  --color-success:       #16a34a;
  --color-error:         #dc2626;

  /* ── Typography ─────────────────────────────────────────────────── */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;

  /* ── Spacing & Radius ───────────────────────────────────────────── */
  --radius-sm:    4px;
  --radius-md:    8px;
  --radius-lg:    16px;
  --spacing-page: 1.5rem;

  /* ── Shadows ────────────────────────────────────────────────────── */
  --shadow-card:  0 2px 8px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.12);

  /* ── Card layout ────────────────────────────────────────────────── */
  /* Controls the structural layout of PropertyCard */
  --card-direction:      column;          /* column = vertical card, row = horizontal */
  --card-image-ratio:    16/9;            /* image aspect ratio */
  --card-image-width:    100%;            /* image width (set to fixed px for row layout) */
  --card-image-shrink:   0;              /* flex-shrink for image in row layout */
  --card-body-padding:   1rem;
  --card-hover-lift:     -2px;            /* translateY on hover — set 0 to disable */
  --card-border-width:   1px;
  --card-border-style:   solid;
  --card-price-size:     var(--text-xl);
  --card-title-size:     var(--text-base);
  --card-meta-gap:       1rem;

  /* ── Grid layout ────────────────────────────────────────────────── */
  --grid-columns:  repeat(auto-fill, minmax(280px, 1fr));
  --grid-gap:      1.5rem;
  --grid-padding:  var(--spacing-page);

  /* ── Detail page ────────────────────────────────────────────────── */
  --detail-gallery-cols:     2fr 1fr 1fr;
  --detail-gallery-gap:      0.5rem;
  --detail-main-photo-rows:  span 2;
  --detail-specs-direction:  row;
  --detail-specs-gap:        1.5rem;
  --detail-price-size:       var(--text-2xl);

  /* ── Header ─────────────────────────────────────────────────────── */
  --header-bg:          var(--color-bg);
  --header-border:      1px solid var(--color-border);
  --header-position:    sticky;
  --header-padding-y:   0.75rem;
  --header-logo-size:   var(--text-xl);
}

/* ── Dark mode (optional) ──────────────────────────────────────── */
@media (prefers-color-scheme: dark) {
  :root {
    --color-text:      #f1f5f9;
    --color-text-muted:#94a3b8;
    --color-bg:        #0f172a;
    --color-bg-soft:   #1e293b;
    --color-border:    #334155;
  }
}

/* ── Reset & Base ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-sans); color: var(--color-text); background: var(--color-bg); line-height: 1.6; }
img { max-width: 100%; display: block; }
a { color: var(--color-primary); }

/* ── Property Card ──────────────────────────────────────────────── */
.property-card {
  display: flex;
  flex-direction: var(--card-direction);
  border-radius: var(--radius-md);
  border: var(--card-border-width) var(--card-border-style) var(--color-border);
  overflow: hidden;
  background: var(--color-bg);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.property-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(var(--card-hover-lift));
}
.property-card__link {
  display: block;
  flex-shrink: var(--card-image-shrink);
  width: var(--card-image-width);
}
.property-card__image {
  aspect-ratio: var(--card-image-ratio);
  object-fit: cover;
  width: 100%;
  height: 100%;
}
.property-card__image--placeholder {
  aspect-ratio: var(--card-image-ratio);
  background: var(--color-bg-soft);
  width: 100%;
}
.property-card__body  { padding: var(--card-body-padding); flex: 1; min-width: 0; }
.property-card__price { font-size: var(--card-price-size); font-weight: 700; color: var(--color-primary); }
.property-card__title { font-size: var(--card-title-size); margin: 0.5rem 0; }
.property-card__title a { text-decoration: none; color: var(--color-text); }
.property-card__title a:hover { color: var(--color-primary); }
.property-card__meta  { display: flex; gap: var(--card-meta-gap); color: var(--color-text-muted); font-size: var(--text-sm); flex-wrap: wrap; margin-top: 0.5rem; }
.property-card__badge {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  margin: 0.5rem var(--card-body-padding);
  align-self: flex-start;
}

/* ── Property Grid ──────────────────────────────────────────────── */
.property-grid {
  display: grid;
  grid-template-columns: var(--grid-columns);
  gap: var(--grid-gap);
  padding: var(--grid-padding);
}
.property-grid__empty {
  padding: var(--spacing-page);
  color: var(--color-text-muted);
  text-align: center;
}

/* ── Property Detail ────────────────────────────────────────────── */
.property-detail__gallery {
  display: grid;
  grid-template-columns: var(--detail-gallery-cols);
  gap: var(--detail-gallery-gap);
  margin-bottom: 2rem;
}
.property-detail__photo--main {
  grid-row: var(--detail-main-photo-rows);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.property-detail__photo {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.property-detail__title   { font-size: var(--text-3xl); margin: 0.5rem 0; }
.property-detail__price   { font-size: var(--detail-price-size); color: var(--color-primary); font-weight: 700; }
.property-detail__address { color: var(--color-text-muted); }
.property-detail__specs {
  list-style: none;
  display: flex;
  flex-direction: var(--detail-specs-direction);
  flex-wrap: wrap;
  gap: var(--detail-specs-gap);
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin: 1.5rem 0;
}
.property-detail__description { line-height: 1.8; }

/* ── Search Bar ─────────────────────────────────────────────────── */
.search-bar { background: var(--color-bg-soft); border-bottom: 1px solid var(--color-border); padding: 1rem var(--spacing-page); }
.search-bar form { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: flex-end; max-width: 1200px; margin: 0 auto; }
.search-bar select, .search-bar input { padding: 0.5rem 0.75rem; border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-size: var(--text-sm); background: var(--color-bg); }

/* ── Contact Form ───────────────────────────────────────────────── */
.contact-form { max-width: 600px; margin: 2rem auto; padding: var(--spacing-page); }
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; margin-bottom: 0.375rem; font-weight: 500; }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 0.625rem 0.75rem; border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-size: var(--text-base); }
.field-error { color: var(--color-error); font-size: var(--text-sm); display: block; margin-top: 0.25rem; }
.form-status.success { color: var(--color-success); margin: 1rem 0; }
.form-status.error   { color: var(--color-error); margin: 1rem 0; }

/* ── Buttons ────────────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.625rem 1.25rem; border-radius: var(--radius-sm); font-weight: 600; cursor: pointer; border: none; font-size: var(--text-base); text-decoration: none; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-light); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* ── Pagination ─────────────────────────────────────────────────── */
.pagination { display: flex; gap: 0.5rem; justify-content: center; padding: 2rem; }
.pagination a { padding: 0.5rem 0.75rem; border: 1px solid var(--color-border); border-radius: var(--radius-sm); text-decoration: none; }
.pagination a.active, .pagination a[aria-current] { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }