/* ==========================================================================
   Blue Whale Group (مجموعة الحوت) — Luxury Design System
   Color Palette: Graphite, Deep Navy, Champagne Gold (#D4AF37), Off-White
   ========================================================================== */

:root {
  /* Brand Core Colors */
  --bg-dark: #070B10;
  --bg-surface: #0D131C;
  --bg-surface-elevated: #131B26;
  --bg-surface-card: rgba(19, 27, 38, 0.85);
  --bg-glass: rgba(13, 19, 28, 0.72);
  
  /* Metallic Champagne Gold */
  --gold-primary: #D4AF37;
  --gold-light: #F3E5AB;
  --gold-bright: #E5C365;
  --gold-dark: #A38020;
  --gold-gradient: linear-gradient(135deg, #F3E5AB 0%, #D4AF37 50%, #A38020 100%);
  --gold-gradient-hover: linear-gradient(135deg, #FFFFFF 0%, #E5C365 50%, #D4AF37 100%);
  --gold-glow: rgba(212, 175, 55, 0.25);
  --gold-border: rgba(212, 175, 55, 0.22);
  --gold-border-bright: rgba(212, 175, 55, 0.55);

  /* Secondary Accents */
  --navy-accent: #1E2D42;
  --navy-light: #2A3E5C;
  --blue-glow: rgba(42, 62, 92, 0.4);

  /* Typography Colors */
  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted: #8492A6;
  --text-gold: #E5C365;

  /* Typography Stack */
  --font-ar-display: 'Alexandria', 'Cairo', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-ar-body: 'Cairo', 'Alexandria', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-en-display: 'Outfit', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-en-body: 'Plus Jakarta Sans', 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing System */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Layout */
  --container-max: 1280px;
  --container-narrow: 980px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background-color: var(--bg-dark);
  color: var(--text-primary);
}

body {
  font-family: var(--font-ar-body);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* English LTR override */
html[lang="en"] body {
  font-family: var(--font-en-body);
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Ambient Background Canvas */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 0;
  background: 
    radial-gradient(circle at 20% 15%, rgba(212, 175, 55, 0.07) 0%, transparent 40%),
    radial-gradient(circle at 80% 60%, rgba(30, 45, 66, 0.25) 0%, transparent 50%),
    radial-gradient(circle at 50% 90%, rgba(212, 175, 55, 0.04) 0%, transparent 40%);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
  position: relative;
  z-index: 1;
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  position: relative;
  z-index: 1;
}

.section-sm {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

html[lang="ar"] h1,
html[lang="ar"] h2,
html[lang="ar"] h3 {
  font-family: var(--font-ar-display);
}

html[lang="en"] h1,
html[lang="en"] h2,
html[lang="en"] h3 {
  font-family: var(--font-en-display);
}

.heading-xl {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
}

.heading-lg {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.heading-md {
  font-size: clamp(1.3rem, 2.2vw, 1.75rem);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.heading-sm {
  font-size: 1.15rem;
  font-weight: 600;
}

.text-gold {
  color: #F0C75E;
  background: linear-gradient(135deg, #FFF4CC 0%, #E8C868 50%, #C99727 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.85));
  display: inline-block;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gold-bright);
  background: rgba(212, 175, 55, 0.1);
  border: 1px solid var(--gold-border);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.lead-text {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 780px;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section-header p {
  color: var(--text-secondary);
  max-width: 680px;
}

/* Links & Buttons */
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.85rem 1.8rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-smooth);
  border: none;
  text-align: center;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-gold {
  background: var(--gold-gradient);
  color: #070B10;
  box-shadow: 0 4px 20px var(--gold-glow);
}

.btn-gold:hover {
  background: var(--gold-gradient-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(212, 175, 55, 0.45);
}

.btn-outline {
  background: rgba(13, 19, 28, 0.8);
  color: var(--text-primary);
  border: 1px solid var(--gold-border);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  border-color: var(--gold-bright);
  background: rgba(212, 175, 55, 0.08);
  color: var(--gold-light);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #25D366;
  color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: #22BF5B;
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(37, 211, 102, 0.45);
}

.btn-lg {
  padding: 1.1rem 2.2rem;
  font-size: 1.1rem;
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

/* Luxury Header Navigation */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(7, 11, 16, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(212, 175, 55, 0.12);
  transition: background var(--transition-smooth);
}

.site-header.scrolled {
  background: rgba(7, 11, 16, 0.96);
  border-bottom-color: rgba(212, 175, 55, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  max-width: 52px;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(212, 175, 55, 0.35));
  transition: transform var(--transition-fast);
}

.brand-logo:hover .brand-logo-img {
  transform: scale(1.05);
}

.brand-logo-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.brand-logo-title {
  font-size: clamp(0.78rem, 0.92vw, 0.95rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
  white-space: nowrap;
}

.brand-logo-subtitle {
  font-size: 0.64rem;
  color: var(--gold-light);
  letter-spacing: 0.04em;
  opacity: 0.9;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(0.4rem, 0.9vw, 1.1rem);
  list-style: none;
}

.nav-link {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.35rem 0.45rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  color: var(--gold-bright);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0.45rem;
  right: 0.45rem;
  height: 2px;
  background: var(--gold-gradient);
  border-radius: var(--radius-full);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.btn-request {
  white-space: nowrap;
  font-size: 0.82rem;
  padding: 0.45rem 0.85rem;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.7rem;
  background: rgba(19, 27, 38, 0.6);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.lang-switch:hover {
  border-color: var(--gold-bright);
  color: var(--gold-light);
  background: rgba(212, 175, 55, 0.1);
}

.nav-toggle-btn {
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(19, 27, 38, 0.7);
  border: 1px solid var(--gold-border);
  padding: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  color: var(--gold-light);
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 101;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.nav-toggle-btn:hover {
  border-color: var(--gold-bright);
  color: var(--gold-bright);
  background: rgba(212, 175, 55, 0.12);
  box-shadow: 0 0 12px rgba(212, 175, 55, 0.2);
}

.nav-toggle-btn.active,
.nav-toggle-btn[aria-expanded="true"] {
  border-color: var(--gold-bright);
  color: var(--gold-bright);
  background: rgba(212, 175, 55, 0.2);
}

.nav-toggle-btn .icon-close {
  display: none;
}

.nav-toggle-btn.active .icon-close,
.nav-toggle-btn[aria-expanded="true"] .icon-close {
  display: block;
}

.nav-toggle-btn.active .icon-menu,
.nav-toggle-btn[aria-expanded="true"] .icon-menu {
  display: none;
}

/* Mobile Nav Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  bottom: 0;
  height: calc(100vh - 80px);
  height: calc(100dvh - 80px);
  background: rgba(7, 11, 16, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--space-lg) var(--space-md) calc(var(--space-xl) + env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  z-index: 99;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-nav-drawer.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid rgba(212, 175, 55, 0.15);
  margin-bottom: 0.25rem;
}

.mobile-drawer-close-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(212, 175, 55, 0.08);
  border: 1px solid var(--gold-border);
  color: var(--gold-light);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-drawer-close-btn:hover {
  background: rgba(212, 175, 55, 0.2);
  color: var(--gold-bright);
  border-color: var(--gold-bright);
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-nav-link {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  padding: 0.7rem 0.5rem;
  border-radius: var(--radius-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--gold-bright);
  background: rgba(212, 175, 55, 0.06);
  padding-right: 0.75rem;
}

/* Footer Design */
.site-footer {
  margin-top: auto;
  background: #04070B;
  border-top: 1px solid rgba(212, 175, 55, 0.15);
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-xl);
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: var(--space-md);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.footer-col-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  position: relative;
  display: inline-block;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--gold-gradient);
}

html[lang="ar"] .footer-col-title::after {
  left: auto;
  right: 0;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--gold-bright);
  padding-inline-start: 4px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.footer-contact-item svg {
  flex-shrink: 0;
  color: var(--gold-bright);
  margin-top: 4px;
}

/* Social Media Icon Buttons */
.social-icon-circle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(19, 27, 38, 0.85);
  border: 1px solid var(--gold-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-bright);
  transition: all var(--transition-fast);
}

.social-icon-circle:hover {
  background: var(--gold-primary);
  color: #04070B;
  border-color: var(--gold-bright);
  transform: translateY(-3px);
  box-shadow: 0 4px 14px rgba(212, 175, 55, 0.4);
}

.social-icon-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(19, 27, 38, 0.7);
  border: 1px solid rgba(212, 175, 55, 0.25);
  color: var(--gold-light);
  font-size: 0.8rem;
  transition: all var(--transition-fast);
}

.social-icon-pill:hover {
  background: rgba(212, 175, 55, 0.15);
  border-color: var(--gold-bright);
  color: var(--gold-bright);
  transform: translateY(-2px);
}

.mobile-drawer-header {
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(212, 175, 55, 0.15);
  margin-bottom: 0.5rem;
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-legal-links {
  display: flex;
  gap: var(--space-lg);
}

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

/* Floating WhatsApp Button (Revealed on Scroll Past Hero) */
.floating-whatsapp {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: #25D366;
  color: #FFFFFF;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-full);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.4);
  font-weight: 700;
  font-size: 0.95rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity 0.35s ease, transform 0.35s ease, visibility 0.35s ease;
  pointer-events: none;
}

.floating-whatsapp.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

html[lang="ar"] .floating-whatsapp {
  right: auto;
  left: 24px;
}

.floating-whatsapp:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 10px 32px rgba(37, 211, 102, 0.55);
  color: #FFFFFF;
}

.floating-whatsapp svg {
  width: 24px;
  height: 24px;
}

/* Responsive Grid & Breakpoints */
@media (max-width: 1024px) {
  .main-nav {
    display: none;
  }
  .nav-toggle-btn {
    display: inline-flex;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .header-actions .btn-request {
    display: none;
  }
  .header-actions .lang-switch {
    display: none !important;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .floating-whatsapp span {
    display: none;
  }
  .floating-whatsapp {
    padding: 0.85rem;
    border-radius: 50%;
  }
}