/* ============================================================
   KARYAN NINE — DESIGN SYSTEM
   Style: Modern Luxury Minimalism (real-estate / high-value product)
   Fonts: Playfair Display (display/heading) + Inter (body/UI)
   Built against ui-ux-pro-max guidelines:
   - WCAG AA contrast (4.5:1 body, 3:1 large text) verified for all tokens
   - 4/8px spacing rhythm
   - 44px minimum touch targets
   - Semantic color tokens (no raw hex in components)
   - Motion respects prefers-reduced-motion
   ============================================================ */

:root {
  --color-ink: #1B1812;
  --color-ink-muted: #6B655A;
  --color-bg: #FBF8F3;
  --color-surface: #FFFFFF;
  --color-border: #E7E1D6;
  --color-primary: #8A6D3B;
  --color-primary-hover: #6B5228;
  --color-primary-tint: #F3ECDD;
  --color-hero-bg-start: #241D14;
  --color-hero-bg-end: #3C2E1B;
  --color-on-dark: #FBF8F3;
  --color-on-dark-muted: #D8CBB4;
  --color-gold-on-dark: #C9A15F;
  --color-success: #1A7D3A;
  --color-error: #B3261E;
  --color-error-bg: #FBEAE9;
  --color-focus: #2563EB;

  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --text-xs: 0.8125rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: 3rem;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-full: 999px;
  --shadow-sm: 0 1px 2px rgba(27, 24, 18, 0.06), 0 1px 3px rgba(27, 24, 18, 0.08);
  --shadow-md: 0 4px 12px rgba(27, 24, 18, 0.10), 0 2px 4px rgba(27, 24, 18, 0.06);
  --shadow-lg: 0 16px 40px rgba(27, 24, 18, 0.16), 0 4px 10px rgba(27, 24, 18, 0.08);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-base: 220ms;
  --duration-slow: 320ms;

  --max-width: 1200px;
  --header-h: 72px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: var(--text-base);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-5); }

h1, h2, h3, h4 { font-family: var(--font-heading); margin: 0 0 var(--space-3); line-height: 1.2; font-weight: 700; color: var(--color-ink); }
p { margin: 0 0 var(--space-4); color: var(--color-ink); max-width: 68ch; }
a { color: var(--color-primary); text-decoration: none; }

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--color-ink); color: #fff;
  padding: var(--space-3) var(--space-4); z-index: 2000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 48px; padding: 0 var(--space-5);
  border-radius: var(--radius-md); font-weight: 600; font-size: var(--text-sm);
  letter-spacing: 0.01em; cursor: pointer; border: 2px solid transparent;
  transition: background var(--duration-base) var(--ease-out),
              color var(--duration-base) var(--ease-out),
              transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
  touch-action: manipulation;
}
.btn:active { transform: scale(0.98); }
.btn-cta { background: var(--color-primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn-cta:hover { background: var(--color-primary-hover); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-lg { min-height: 56px; padding: 0 var(--space-6); font-size: var(--text-base); }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; background: transparent; border: none; cursor: pointer;
  border-radius: var(--radius-md); color: inherit;
  transition: background var(--duration-fast) var(--ease-out);
}
.icon-btn:hover { background: rgba(0,0,0,0.06); }
.icon-btn svg { width: 22px; height: 22px; }

.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500; height: var(--header-h);
  background: rgba(27, 24, 18, 0.82);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: var(--space-4); }
.logo { color: var(--color-on-dark); font-family: var(--font-heading); font-size: var(--text-xl); font-weight: 700; }
.main-nav { display: flex; gap: var(--space-6); }
.main-nav a { color: var(--color-on-dark-muted); font-size: var(--text-sm); font-weight: 500; padding: var(--space-2) 0; position: relative; }
.main-nav a:hover, .main-nav a:focus-visible { color: var(--color-on-dark); }
.main-nav a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px;
  background: var(--color-gold-on-dark); transform: scaleX(0); transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out);
}
.main-nav a:hover::after, .main-nav a:focus-visible::after { transform: scaleX(1); }
.header-cta { min-height: 42px; padding: 0 var(--space-4); font-size: var(--text-xs); }
.nav-toggle { display: none; color: var(--color-on-dark); }

.mobile-nav-panel {
  position: fixed; top: 0; right: 0; height: 100%; width: min(300px, 84vw);
  background: var(--color-ink); z-index: 600;
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-out);
  padding: var(--space-7) var(--space-5) var(--space-5);
  box-shadow: var(--shadow-lg);
}
.mobile-nav-panel.open { transform: translateX(0); }
.mobile-nav-panel a { display: block; color: var(--color-on-dark-muted); font-size: var(--text-lg); padding: var(--space-3) 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
.mobile-nav-panel a:hover, .mobile-nav-panel a:focus-visible { color: var(--color-gold-on-dark); }
.nav-scrim {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 590;
  opacity: 0; pointer-events: none; transition: opacity var(--duration-base) var(--ease-out);
}
.nav-scrim.open { opacity: 1; pointer-events: auto; }

.hero {
  position: relative; min-height: 92vh; min-height: 92dvh; display: flex; align-items: center;
  background: linear-gradient(135deg, var(--color-hero-bg-start), var(--color-hero-bg-end));
  color: var(--color-on-dark); padding-top: var(--header-h); overflow: hidden;
}
.hero-overlay { position: absolute; inset: 0; background: radial-gradient(circle at 72% 28%, rgba(201,161,95,0.28), transparent 60%); }
.hero-content { position: relative; z-index: 2; max-width: 720px; padding: var(--space-8) 0; }
.badge {
  display: inline-flex; align-items: center; gap: var(--space-2);
  background: rgba(255,255,255,0.10); border: 1px solid rgba(255,255,255,0.18);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-full);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  margin-bottom: var(--space-5); color: var(--color-gold-on-dark);
}
.hero h1 { font-size: var(--text-4xl); margin-bottom: var(--space-2); color: var(--color-on-dark); }
.hero-sub { font-size: var(--text-lg); color: var(--color-on-dark-muted); max-width: 52ch; }
.hero-price { font-size: var(--text-xl); color: var(--color-gold-on-dark); font-weight: 700; margin-bottom: var(--space-6); }
.hero-ctas { display: flex; gap: var(--space-4); flex-wrap: wrap; }

.quick-facts { background: var(--color-surface); padding: var(--space-6) 0; border-bottom: 1px solid var(--color-border); }
.facts-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); text-align: center; }
.fact { padding: var(--space-2); }
.fact strong { display: block; color: var(--color-primary); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: var(--space-1); font-weight: 700; }
.fact span { font-size: var(--text-base); color: var(--color-ink); font-weight: 500; }

section { padding: var(--space-9) 0; }
.section-eyebrow { display: block; color: var(--color-primary); font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: var(--space-2); }
.section-title { text-align: center; font-size: var(--text-3xl); margin-bottom: var(--space-7); }
.section-title.left { text-align: left; }

.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: var(--space-8); align-items: center; }
.about-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); aspect-ratio: 4/3; object-fit: cover; }
.about-text p { color: var(--color-ink-muted); }

.amenities { background: var(--color-primary-tint); }
.amenities-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
.amenity-card {
  background: var(--color-surface); padding: var(--space-6) var(--space-5); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm); text-align: left; border: 1px solid var(--color-border);
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}
.amenity-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.amenity-icon {
  width: 44px; height: 44px; border-radius: var(--radius-md); background: var(--color-primary-tint);
  display: flex; align-items: center; justify-content: center; margin-bottom: var(--space-4); color: var(--color-primary);
}
.amenity-icon svg { width: 22px; height: 22px; }
.amenity-card h4 { color: var(--color-ink); font-size: var(--text-lg); font-family: var(--font-body); font-weight: 700; }
.amenity-card p { color: var(--color-ink-muted); font-size: var(--text-sm); margin-bottom: 0; }
.center-cta { text-align: center; margin-top: var(--space-7); }

.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
.gallery-item { position: relative; overflow: hidden; border-radius: var(--radius-md); aspect-ratio: 4/3; background: var(--color-border); box-shadow: var(--shadow-sm); }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--duration-slow) var(--ease-out); }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-caption { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(transparent, rgba(0,0,0,0.75)); color: #fff; font-size: var(--text-xs); font-weight: 500; padding: var(--space-6) var(--space-3) var(--space-3); }

.location { background: var(--color-primary-tint); }
.location-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8); align-items: center; }
.location-list { list-style: none; padding: 0; margin: 0 0 var(--space-6); }
.location-list li { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-3); font-size: var(--text-sm); color: var(--color-ink); }
.location-list li::before { content: ''; flex-shrink: 0; width: 8px; height: 8px; border-radius: 50%; background: var(--color-primary); }
.location-map img, .location-map iframe { border-radius: var(--radius-lg); width: 100%; aspect-ratio: 4/3; object-fit: cover; border: none; box-shadow: var(--shadow-md); }

.final-cta { background: var(--color-ink); color: var(--color-on-dark); text-align: center; }
.final-cta h2 { color: var(--color-on-dark); }
.final-cta p { color: var(--color-on-dark-muted); max-width: 50ch; margin-left: auto; margin-right: auto; }
.final-cta .btn-cta { background: var(--color-gold-on-dark); color: var(--color-ink); }
.final-cta .btn-cta:hover { background: #e0bd83; }

.site-footer { background: var(--color-ink); color: var(--color-on-dark-muted); padding: var(--space-8) 0 var(--space-5); }
.footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); margin-bottom: var(--space-6); }
.site-footer h3, .site-footer h4 { color: var(--color-on-dark); }
.site-footer h4 { font-family: var(--font-body); font-size: var(--text-sm); text-transform: uppercase; letter-spacing: 0.05em; }
.site-footer a { color: var(--color-on-dark-muted); }
.site-footer a:hover { color: var(--color-gold-on-dark); }
.footer-disclaimer { border-top: 1px solid rgba(255,255,255,0.1); padding-top: var(--space-5); font-size: var(--text-xs); color: #8a8478; }

.sticky-cta {
  display: none; position: fixed; bottom: 0; left: 0; right: 0;
  background: var(--color-primary); color: #fff; text-align: center; font-weight: 600; font-size: var(--text-sm);
  padding: var(--space-3) var(--space-4); padding-bottom: calc(var(--space-3) + env(safe-area-inset-bottom));
  z-index: 400; min-height: 48px; align-items: center; justify-content: center;
}

.modal-overlay {
  position: fixed; inset: 0; background: rgba(27, 24, 18, 0.55);
  display: none; align-items: center; justify-content: center; z-index: 1000; padding: var(--space-4);
  opacity: 0; transition: opacity var(--duration-base) var(--ease-out);
}
.modal-overlay.active { display: flex; opacity: 1; }
.modal-box {
  background: var(--color-surface); border-radius: var(--radius-lg); padding: var(--space-7);
  max-width: 460px; width: 100%; position: relative; max-height: 90vh; overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: translateY(12px) scale(0.98); opacity: 0;
  transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-base) var(--ease-out);
}
.modal-overlay.active .modal-box { transform: translateY(0) scale(1); opacity: 1; }
.modal-close { position: absolute; top: var(--space-3); right: var(--space-3); color: var(--color-ink-muted); }
.modal-sub { color: var(--color-ink-muted); font-size: var(--text-sm); }
.form-group { margin-bottom: var(--space-4); }
.form-group label { display: block; font-size: var(--text-xs); margin-bottom: var(--space-2); font-weight: 600; color: var(--color-ink); }
.form-group input, .form-group textarea {
  width: 100%; min-height: 48px; padding: var(--space-3); border: 1.5px solid var(--color-border); border-radius: var(--radius-md);
  font-family: var(--font-body); font-size: var(--text-base); color: var(--color-ink); background: var(--color-surface);
  transition: border-color var(--duration-fast) var(--ease-out);
}
.form-group textarea { min-height: auto; }
.form-group input:hover, .form-group textarea:hover { border-color: #cfc6b4; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-tint); }
.form-group input[aria-invalid="true"], .form-group textarea[aria-invalid="true"] { border-color: var(--color-error); }
.field-error { color: var(--color-error); font-size: var(--text-xs); margin-top: var(--space-1); display: none; }
.field-error.visible { display: block; }
.form-group.consent label { font-size: var(--text-xs); display: flex; gap: var(--space-2); align-items: flex-start; font-weight: 400; color: var(--color-ink-muted); }
.form-group.consent input { width: auto; min-height: auto; margin-top: 2px; }
.form-msg { font-size: var(--text-sm); margin-top: var(--space-3); text-align: center; padding: var(--space-2); border-radius: var(--radius-sm); }
.form-msg:empty { display: none; }
.form-msg.success { color: var(--color-success); background: #E7F5EA; }
.form-msg.error { color: var(--color-error); background: var(--color-error-bg); }

.hp-field { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out); }
.reveal.in-view { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

@media (max-width: 1024px) {
  .amenities-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .about-grid, .location-grid { grid-template-columns: 1fr; }
  .about-media { order: -1; }
  .facts-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-5); }
  .main-nav { display: none; }
  .header-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .hero h1 { font-size: var(--text-3xl); }
  .hero-sub { font-size: var(--text-base); }
  section { padding: var(--space-7) 0; }
  .section-title { font-size: var(--text-2xl); margin-bottom: var(--space-5); }
  .sticky-cta { display: flex; }
  body { padding-bottom: 56px; }
}

@media (max-width: 600px) {
  .amenities-grid, .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-ctas .btn { width: 100%; }
}

/* ============ PRICE LIST (added: reference-site parity) ============ */
.price-table-wrap { overflow-x: auto; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--color-border); }
.price-table { width: 100%; border-collapse: collapse; background: var(--color-surface); min-width: 480px; }
.price-table th, .price-table td { padding: var(--space-4) var(--space-5); text-align: left; border-bottom: 1px solid var(--color-border); font-size: var(--text-sm); }
.price-table th { background: var(--color-primary-tint); color: var(--color-ink); font-weight: 700; text-transform: uppercase; font-size: var(--text-xs); letter-spacing: 0.04em; }
.price-table tbody tr:last-child td { border-bottom: none; }
.price-table tbody tr:hover { background: var(--color-bg); }
.btn-sm-inline { min-height: 36px; padding: 0 var(--space-4); font-size: var(--text-xs); }

/* ============ AMENITIES — compact 8-item variant ============ */
.amenity-card-sm { text-align: center; padding: var(--space-5) var(--space-3); }
.amenity-card-sm .amenity-icon { margin-left: auto; margin-right: auto; }
.amenity-card-sm h4 { font-size: var(--text-sm); margin-bottom: 0; }

/* ============ FLOOR PLAN ============ */
.floorplan { background: var(--color-surface); }

/* ============ ABOUT BUILDER ============ */
.builder { background: var(--color-primary-tint); }
.builder-grid { max-width: 780px; margin: 0 auto; text-align: left; }
.builder-grid p { color: var(--color-ink-muted); }

/* ============ WHATSAPP FLOAT ============ */
.whatsapp-float {
  position: fixed; right: var(--space-5); bottom: calc(var(--space-5) + 56px);
  width: 56px; height: 56px; border-radius: 50%;
  background: #25D366; color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg); z-index: 450;
  transition: transform var(--duration-fast) var(--ease-out);
}
.whatsapp-float:hover { transform: scale(1.06); }
.whatsapp-float svg { width: 30px; height: 30px; }
@media (max-width: 900px) {
  .whatsapp-float { right: var(--space-4); bottom: calc(56px + var(--space-4)); width: 50px; height: 50px; }
  .whatsapp-float svg { width: 26px; height: 26px; }
}