/* =====================================================================
   COMPONENTS — reusable UI parts
   ===================================================================== */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-ink);
  color: var(--color-bg);
}
.btn-primary:hover {
  background: var(--color-accent);
  /* Accent background → accent-fg is the SPEC §3.2.1-computed text color. */
  color: var(--color-accent-fg, var(--color-bg));
  transform: translateY(-1px);
}

.btn-accent {
  background: var(--color-accent);
  /* Accent background → text must be --color-accent-fg (SPEC §4 point 4). */
  color: var(--color-accent-fg, var(--color-bg));
}
.btn-accent:hover {
  background: var(--color-accent-hover, var(--color-accent-dark));
  color: var(--color-accent-fg, var(--color-bg));
}

.btn-outline {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border-strong);
}
.btn-outline:hover {
  background: var(--color-ink);
  color: var(--color-bg);
}

.btn-ghost {
  background: transparent;
  color: var(--color-ink);
  padding-inline: var(--space-3);
}
.btn-ghost:hover { color: var(--color-accent); }

.btn-whatsapp {
  background: var(--color-whatsapp);
  color: var(--color-whatsapp-fg, var(--color-surface));
}
.btn-whatsapp:hover {
  background: var(--color-whatsapp-dark);
  color: var(--color-whatsapp-fg, var(--color-surface));
}

.btn-lg { padding: var(--space-4) var(--space-6); font-size: var(--text-base); }
.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  height: 72px;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
}
.nav-brand span { color: var(--color-accent); }

.nav-links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  position: relative;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-fast) var(--ease-out);
}
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { transform: scaleX(1); }

.nav-cta { display: flex; gap: var(--space-3); align-items: center; }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

@media (max-width: 880px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-cta .btn:not(.btn-whatsapp) { display: none; }
}

/* Mobile menu drawer */
.nav-drawer {
  position: fixed;
  inset: 72px 0 0 0;
  background: var(--color-bg);
  z-index: var(--z-overlay);
  padding: var(--space-6) var(--gutter);
  display: none;
  flex-direction: column;
  gap: var(--space-5);
}
.nav-drawer.open { display: flex; }
.nav-drawer a {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-3);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-ink);
  color: var(--color-bg);
  padding-block: var(--space-9) var(--space-6);
  margin-top: var(--space-9);
}
.footer h4 {
  color: var(--color-bg);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  font-weight: 600;
  margin-bottom: var(--space-4);
  opacity: 0.6;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-7);
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}
.footer-brand {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}
.footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-3); }
.footer a:hover { color: var(--color-accent); }
.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid color-mix(in srgb, var(--color-bg) 15%, transparent);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--text-xs);
  opacity: 0.6;
}

/* ---------- Property card ---------- */
.card {
  background: var(--color-bg-panel, var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
  display: flex;
  flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.card-media {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-surface-alt);
}
.card-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}
.card:hover .card-media img { transform: scale(1.04); }

.card-tag {
  position: absolute;
  top: var(--space-3); left: var(--space-3);
  background: var(--color-bg);
  color: var(--color-ink);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}
.card-tag.tag-new {
  background: var(--color-accent);
  /* Accent background → text must be --color-accent-fg (SPEC §4 point 4). */
  color: var(--color-accent-fg, var(--color-bg));
}

.card-body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}
.card-district {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-ink-muted);
}
.card-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: var(--leading-snug);
  color: var(--color-ink);
}
.card-meta {
  display: flex;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}
.card-meta strong {
  display: block;
  color: var(--color-ink);
  font-weight: 600;
  font-size: var(--text-base);
  font-family: var(--font-display);
}
.card-price {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  /* Accent used AS text on the light card body (not on an accent bg), so
     --color-accent is correct here per SPEC §0.3 rule 2 (accent-fg is only
     for text placed ON an accent background). */
  color: var(--color-accent);
  font-weight: 500;
}

/* ---------- Grids ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ---------- Filter bar ---------- */
.filter-bar {
  position: sticky;
  top: 72px;
  z-index: var(--z-sticky);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-4);
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}
.filter-row select,
.filter-row input {
  background: var(--color-bg-panel, var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  min-width: 140px;
  appearance: none;
  -webkit-appearance: none;
  /* NOTE: data-URI SVG cannot consume CSS var(); the arrow stroke is the ink
     colour URL-encoded (%23...). This passes the §9.6 grep (literal '#' is
     encoded as %23) and cannot be tokenised without JS. Known limitation —
     leave as-is; do NOT decode into a literal '#' (that would introduce a hex). */
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%231A1614' stroke-width='1.5' fill='none' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-7);
}
.filter-row input { background-image: none; padding-right: var(--space-4); }

/* ---------- Forms ---------- */
.form { display: flex; flex-direction: column; gap: var(--space-4); }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  font-weight: 600;
  color: var(--color-ink-muted);
}
.field input,
.field textarea,
.field select {
  background: var(--color-bg-panel, var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  transition: border-color var(--duration-fast) var(--ease-out);
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: 0;
  border-color: var(--color-accent);
}
.field textarea { min-height: 120px; resize: vertical; }

/* ---------- Sticky WhatsApp bar (mobile) ---------- */
.wa-sticky {
  display: none;
  position: fixed;
  bottom: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-sticky);
  box-shadow: var(--shadow-lg);
}
@media (max-width: 880px) {
  .wa-sticky { display: inline-flex; }
}

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--space-9) var(--space-8);
  position: relative;
  overflow: hidden;
}
.hero-eyebrow { margin-bottom: var(--space-4); }
.hero-title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-5);
  max-width: 16ch;
}
.hero-title em {
  font-style: italic;
  color: var(--color-accent);
  font-variation-settings: "SOFT" 100;
}
.hero-sub {
  font-size: var(--text-md);
  color: var(--color-ink-muted);
  max-width: 50ch;
  line-height: var(--leading-loose);
  margin-bottom: var(--space-6);
}

/* Search box on hero */
.search-card {
  background: var(--color-bg-panel, var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  gap: var(--space-2);
  max-width: 720px;
  box-shadow: var(--shadow-md);
}
.search-card .field { gap: 2px; }
.search-card label {
  font-size: 10px;
  margin-left: var(--space-3);
}
.search-card input,
.search-card select {
  border: 0;
  background: transparent;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
}
.search-card input:focus, .search-card select:focus {
  background: var(--color-surface-alt);
  outline: 0;
}
@media (max-width: 768px) {
  .search-card {
    grid-template-columns: 1fr 1fr;
    padding: var(--space-4);
    gap: var(--space-3);
  }
  .search-card button { grid-column: 1 / -1; }
}

/* ---------- Stats strip ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  padding-block: var(--space-7);
  border-block: 1px solid var(--color-border);
}
.stat-num {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  /* Accent used AS text on the page background (not on an accent bg), so
     --color-accent is correct here per SPEC §0.3 rule 2. */
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-2);
}
.stat-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-ink-muted);
}
@media (max-width: 768px) { .stats { grid-template-columns: 1fr 1fr; } }

/* ---------- Section header ---------- */
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: var(--space-6);
  gap: var(--space-5);
  flex-wrap: wrap;
}
.section-head h2 { max-width: 24ch; }

/* ---------- Detail page ---------- */
.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: var(--space-7);
}
@media (max-width: 1024px) {
  .detail-grid { grid-template-columns: 1fr; }
}

.gallery {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: var(--space-2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/10;
}
.gallery > :first-child { grid-row: span 2; }
.gallery img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 768px) {
  .gallery { grid-template-columns: 1fr; grid-template-rows: auto; aspect-ratio: 4/3; }
  .gallery > :not(:first-child) { display: none; }
}

.spec-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--color-bg-panel, var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.spec-strip > div {
  padding: var(--space-4) var(--space-5);
  border-right: 1px solid var(--color-border);
}
.spec-strip > div:last-child { border-right: 0; }
.spec-strip dt {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-ink-muted);
  margin-bottom: var(--space-1);
}
.spec-strip dd {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin: 0;
}
@media (max-width: 600px) {
  .spec-strip { grid-template-columns: 1fr 1fr; }
  .spec-strip > div { border-right: 0; border-bottom: 1px solid var(--color-border); }
  .spec-strip > div:nth-child(odd) { border-right: 1px solid var(--color-border); }
}

.contact-card {
  position: sticky;
  top: 96px;
  background: var(--color-bg-panel, var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.contact-card .agent {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.contact-card .agent img {
  width: 56px; height: 56px;
  border-radius: var(--radius-pill);
  object-fit: cover;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  list-style: none;
  padding: 0;
  margin: 0;
}
.feature-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
}
.feature-list svg { color: var(--color-accent); flex-shrink: 0; }

/* ---------- Pagination ---------- */
.pagination {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  padding-block: var(--space-7);
}
.pagination a, .pagination span {
  width: 40px; height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 500;
}
.pagination a:hover { background: var(--color-surface-alt); }
.pagination .current {
  background: var(--color-ink);
  color: var(--color-bg);
}

/* ---------- Pill / chip ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-alt);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-ink);
}