/* ==========================================================================
   ARKENTA REAL ESTATE DEVELOPMENT (ARED) — ULTRA LUXURY ARCHITECTURAL STYLES
   ========================================================================== */

:root {
  --bg-primary: #08090b;
  --bg-secondary: #0f1115;
  --bg-card: rgba(22, 25, 32, 0.7);
  --bg-glass: rgba(15, 17, 21, 0.75);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-gold: rgba(197, 168, 128, 0.3);
  --border-gold-hover: rgba(197, 168, 128, 0.6);
  
  --gold-primary: #c5a880;
  --gold-light: #e5cfb3;
  --gold-dark: #9a7d56;
  --gold-gradient: linear-gradient(135deg, #e5cfb3 0%, #c5a880 50%, #9a7d56 100%);
  
  --text-primary: #f5f5f7;
  --text-secondary: #a0a4b0;
  --text-muted: #6b7080;
  
  --font-serif: 'Cinzel', 'Playfair Display', Georgia, serif;
  --font-sans: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-luxury: 0 20px 40px rgba(0, 0, 0, 0.6);
  --shadow-gold: 0 0 30px rgba(197, 168, 128, 0.15);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Typography Helpers */
h1, h2, h3, h4, .serif {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.gold-text {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold-primary);
  margin-bottom: 1rem;
  display: inline-block;
}

/* Container */
.container {
  width: 90%;
  max-width: 1360px;
  margin: 0 auto;
}

/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.5rem 0;
  transition: var(--transition-smooth);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-link {
  text-decoration: none;
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  letter-spacing: 0.25em;
  color: var(--text-primary);
  font-weight: 500;
}

.brand-sub {
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  color: var(--gold-primary);
  text-transform: uppercase;
  margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2.5rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: var(--transition-smooth);
}

.nav-links a:hover {
  color: var(--gold-light);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.8rem;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-gold {
  background: var(--gold-gradient);
  color: #0b0d10;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn-gold:hover {
  box-shadow: 0 0 25px rgba(197, 168, 128, 0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-gold);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--gold-light);
  background: rgba(197, 168, 128, 0.08);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #25D366;
  color: #ffffff;
  font-weight: 600;
  border: none;
}

.btn-whatsapp:hover {
  background: #20bd5a;
  box-shadow: 0 0 20px rgba(37, 211, 102, 0.35);
  transform: translateY(-2px);
}

/* HERO SECTION */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: url('assets/images/hero-exterior.jpg') center center / cover no-repeat;
  padding-top: 6rem;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(8, 9, 11, 0.45) 0%,
    rgba(8, 9, 11, 0.7) 60%,
    rgba(8, 9, 11, 0.95) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 3rem 1rem;
}

.hero-title {
  font-size: 3.2rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: #ffffff;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.7);
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 720px;
  margin: 0 auto 2.5rem;
  font-weight: 300;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-gold);
  border-radius: 40px;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold-light);
  backdrop-filter: blur(8px);
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* SECTION COMMONS */
.section-padding {
  padding: 7rem 0;
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 4.5rem;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 1.2rem;
  color: var(--text-primary);
}

.section-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  font-weight: 300;
}

/* PHILOSOPHY / ABOUT */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 3rem;
  border-radius: 4px;
  backdrop-filter: blur(12px);
  position: relative;
}

.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 60px;
  height: 2px;
  background: var(--gold-gradient);
}

.about-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1.2rem;
  color: var(--gold-light);
}

.about-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  font-weight: 300;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
}

.stat-item h4 {
  font-size: 1.8rem;
  color: var(--gold-primary);
  margin-bottom: 0.3rem;
}

.stat-item p {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.about-image-wrap {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-luxury);
}

.about-image-wrap img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.8s ease;
}

.about-image-wrap:hover img {
  transform: scale(1.03);
}

/* RESIDENCES SHOWCASE */
.residence-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.tab-btn {
  padding: 0.9rem 2.2rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.tab-btn.active {
  background: rgba(197, 168, 128, 0.1);
  border-color: var(--gold-primary);
  color: var(--gold-light);
}

.residence-panel {
  display: none;
}

.residence-panel.active {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3.5rem;
  align-items: center;
  animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.residence-visual {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border-gold);
  box-shadow: var(--shadow-luxury);
}

.residence-visual img {
  width: 100%;
  height: auto;
  display: block;
}

.residence-info h3 {
  font-size: 1.8rem;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.residence-plot {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--gold-primary);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: block;
}

.residence-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin: 2rem 0;
}

.detail-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 1.2rem;
  border-radius: 3px;
}

.detail-label {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.3rem;
}

.detail-val {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 500;
}

.levels-list {
  list-style: none;
  margin-bottom: 2rem;
}

.levels-list li {
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.levels-list li span:first-child {
  color: var(--gold-light);
  font-family: var(--font-serif);
}

/* ARCHITECTURAL SPECIFICATIONS */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.spec-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 2.5rem 2rem;
  border-radius: 4px;
  transition: var(--transition-smooth);
}

.spec-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}

.spec-icon {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--gold-primary);
}

.spec-card h4 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.spec-card p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.7;
  font-weight: 300;
}

/* GALLERY */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  aspect-ratio: 16 / 10;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.gallery-item:hover img {
  transform: scale(1.06);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(8, 9, 11, 0.85) 100%);
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-caption {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  color: #ffffff;
}

/* LOCATION / PEARL JUMEIRAH */
.location-section {
  background: var(--bg-secondary);
}

.location-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.time-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.time-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  padding: 1.5rem;
  border-radius: 4px;
}

.time-num {
  font-size: 2.2rem;
  font-family: var(--font-serif);
  color: var(--gold-primary);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.time-label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* CONTACT & VIP INQUIRY */
.inquiry-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: 4px;
  padding: 4rem;
  box-shadow: var(--shadow-luxury);
}

.inquiry-info h3 {
  font-size: 1.8rem;
  margin-bottom: 1.2rem;
  color: #ffffff;
}

.inquiry-info p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 2rem;
  font-weight: 300;
}

.contact-channels {
  list-style: none;
  margin-bottom: 2.5rem;
}

.contact-channels li {
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.channel-icon {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-light);
}

.channel-text span {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.channel-text a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.3s;
}

.channel-text a:hover {
  color: var(--gold-light);
}

/* Form */
.inquiry-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.form-input, .form-select, .form-textarea {
  background: rgba(8, 9, 11, 0.7);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 0.9rem 1.2rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  border-radius: 2px;
  transition: var(--transition-smooth);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--gold-primary);
  box-shadow: 0 0 15px rgba(197, 168, 128, 0.2);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-status {
  display: none;
  padding: 1rem;
  border-radius: 2px;
  font-size: 0.85rem;
  text-align: center;
}

.form-status.success {
  display: block;
  background: rgba(37, 211, 102, 0.15);
  border: 1px solid #25D366;
  color: #98ffb8;
}

/* FOOTER */
.site-footer {
  background: #050608;
  padding: 4.5rem 0 2.5rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-brand h4 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  letter-spacing: 0.25em;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.footer-brand p {
  color: var(--gold-primary);
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.footer-meta {
  max-width: 450px;
  line-height: 1.8;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  flex-wrap: wrap;
  gap: 1rem;
}

/* MODAL / LIGHTBOX */
.lightbox-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(5, 6, 8, 0.95);
  backdrop-filter: blur(16px);
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox-modal.active {
  display: flex;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: 4px;
  border: 1px solid var(--border-gold);
  box-shadow: var(--shadow-luxury);
}

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 2.2rem;
  cursor: pointer;
  line-height: 1;
}

/* RESPONSIVE BREAKPOINTS */
@media (max-width: 1024px) {
  .hero-title { font-size: 2.6rem; }
  .about-grid, .residence-panel.active, .location-grid, .inquiry-wrap {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .specs-grid, .gallery-grid {
    grid-template-columns: 1fr 1fr;
  }
  .inquiry-wrap {
    padding: 2.5rem;
  }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero-title { font-size: 2rem; }
  .specs-grid, .gallery-grid, .about-stats, .time-cards, .form-row {
    grid-template-columns: 1fr;
  }
  .section-padding { padding: 4.5rem 0; }
}