/* =================================== */
/*	Premium Design System v2.0 - "Realm of Gods"
/*  Overhaul for Carbon Forward
/* =================================== */

:root {
  /* Core Carbon Identity - Deep, Rich, Electric */
  --cf-void: #050505;
  --cf-carbon: #0F1115;
  --cf-graphite: #1A1D24;
  --cf-steel: #2D323E;
  --cf-vapor: #E0E0E0;
  --cf-white: #FFFFFF;
  
  /* Electric Accents */
  --cf-electric-green: #00FF9D;
  --cf-electric-blue: #2E5CFF;
  --cf-signal-white: #F0F2F5;

  /* City Themes */
  --abu-dhabi-primary: #C89F5D;
  --abu-dhabi-accent: #E6C896;
  --abu-dhabi-gradient: linear-gradient(135deg, #C89F5D 0%, #E6C896 100%);

  --london-primary: #2E5CFF;
  --london-accent: #5C80FF;
  --london-gradient: linear-gradient(135deg, #2E5CFF 0%, #5C80FF 100%);

  --nairobi-primary: #FF9F1C;
  --nairobi-accent: #FFBF69;
  --nairobi-gradient: linear-gradient(135deg, #FF9F1C 0%, #FFBF69 100%);

  --sao-paulo-primary: #00FF9D;
  --sao-paulo-accent: #5CFFC3;
  --sao-paulo-gradient: linear-gradient(135deg, #00FF9D 0%, #5CFFC3 100%);

  --singapore-primary: #FF0055;
  --singapore-accent: #FF5C8D;
  --singapore-gradient: linear-gradient(135deg, #FF0055 0%, #FF5C8D 100%);

  --sydney-primary: #00C2FF;
  --sydney-accent: #5CDFFF;
  --sydney-gradient: linear-gradient(135deg, #00C2FF 0%, #5CDFFF 100%);

  --toronto-primary: #FF3333;
  --toronto-accent: #FF6666;
  --toronto-gradient: linear-gradient(135deg, #FF3333 0%, #FF6666 100%);

  --brussels-primary: #003399;
  --brussels-accent: #FFCC00;
  --brussels-gradient: linear-gradient(135deg, #003399 0%, #0044CC 100%);
  
  /* Sophisticated Gradients */
  --gradient-void: linear-gradient(180deg, var(--cf-void) 0%, var(--cf-carbon) 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(0, 255, 157, 0.15) 0%, rgba(5, 5, 5, 0) 70%);
  --gradient-glass: linear-gradient(145deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);
  
  /* Massive Typography Scale - Editorial & Impact */
  --type-ratio: 1.33;
  --h-hero: clamp(4rem, 8vw + 1rem, 9rem);
  --h1: clamp(3rem, 6vw + 1rem, 6rem);
  --h2: clamp(2.5rem, 4vw + 1rem, 4.5rem);
  --h3: clamp(2rem, 3vw + 0.5rem, 3rem);
  --h4: clamp(1.5rem, 2vw + 0.5rem, 2.25rem);
  --body-lg: clamp(1.125rem, 1vw + 0.5rem, 1.5rem);
  --body: clamp(1rem, 0.5vw + 0.75rem, 1.125rem);
  --caption: 0.875rem;
  
  /* Modern Spacing - Responsive with clamp() */
  --space-xs: clamp(0.25rem, 0.5vw, 0.5rem);
  --space-sm: clamp(0.5rem, 1vw + 0.25rem, 1rem);
  --space-md: clamp(1rem, 2vw + 0.5rem, 2rem);
  --space-lg: clamp(2rem, 4vw + 1rem, 4rem);
  --space-xl: clamp(4rem, 8vh + 2rem, 8rem);
  --space-2xl: clamp(6rem, 12vh + 2rem, 12rem);
  
  /* Container sizing */
  --container-max: min(90vw, 1600px);
  --container-narrow: min(85vw, 800px);
  --container-wide: min(95vw, 1920px);
  
  /* Glassmorphism & Depth */
  --glass-surface: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: blur(20px);
  --shadow-glow: 0 0 40px rgba(0, 255, 157, 0.1);
  
  /* Animation */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px; /* Reset from any legacy 13px */
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', sans-serif;
  font-feature-settings: "ss01", "ss02", "cv01", "cv02";
  font-size: var(--body);
  line-height: 1.6;
  color: var(--cf-vapor);
  background-color: var(--cf-void);
  background-image: var(--gradient-glow);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Typography Overrides */
h1, h2, h3, h4, h5, h6, .h1, .h2, .h3 {
  font-family: 'Bai Jamjuree', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--cf-white);
  margin-bottom: var(--space-md);
}

h1, .h1 { font-size: var(--h1); letter-spacing: -0.04em; }
h2, .h2 { font-size: var(--h2); }
h3, .h3 { font-size: var(--h3); }
h4, .h4 { font-size: var(--h4); }

p {
  margin-bottom: var(--space-md);
  max-width: 65ch;
  color: rgba(255, 255, 255, 0.8);
}

/* Modern Layout Utilities */
.cf-container {
  width: var(--container-max);
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 3rem);
}

.cf-container-narrow {
  width: var(--container-narrow);
  max-width: 800px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem);
}

.cf-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-md);
}

.cf-glass-panel {
  background: var(--glass-surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: var(--space-lg);
}

/* Section Spacing Override */
section, .section {
  padding: var(--space-xl) 0 !important;
  position: relative;
}

/* Button Modernization */
.btn, button, input[type="submit"] {
  font-family: 'Bai Jamjuree', sans-serif;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: clamp(0.75rem, 1.5vh, 1.25rem) clamp(1.5rem, 3vw, 2.5rem);
  border-radius: 0.25rem;
  font-size: clamp(0.875rem, 1vw + 0.25rem, 1rem);
  transition: all 0.4s var(--ease-out-expo);
}

/* Link Animations */
a {
  color: var(--cf-white);
  text-decoration: none;
  position: relative;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--cf-electric-green);
  text-decoration: none;
}

/* Premium Button Styles */
.btn-premium {
  display: inline-flex;
  align-items: center;
  padding: 0.875em 1.5em;
  border-radius: 0.25rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  background: var(--gradient-premium);
  color: var(--cf-white);
  border: none;
  cursor: pointer;
  transform: translateY(0);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.btn-premium:hover {
  transform: translateY(-0.125rem);
  box-shadow: var(--shadow-lg);
}

.btn-premium:active {
  transform: translateY(0);
}

/* Premium Card Styles */
.card-premium {
  background: var(--cf-white);
  border-radius: clamp(0.5rem, 1.5vw, 0.75rem);
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  border: 1px solid rgba(10, 38, 64, 0.1);
}

.card-premium:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

/* Premium Section Styles */
.section-premium {
  padding: clamp(4rem, 10vh, 8rem) 0;
  position: relative;
  overflow: hidden;
}

.section-premium::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-hero);
  opacity: 0.05;
  z-index: -1;
}

/* Premium Grid System */
.grid-premium {
  display: grid;
  gap: clamp(1rem, 2vw + 0.5rem, 2rem);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
}

/* Sophisticated Animations */
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
  100% { transform: translateY(0px); }
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

@keyframes shine {
  0% { background-position: 200% center; }
  100% { background-position: -200% center; }
}

.text-gradient {
  background: var(--gradient-premium);
  background-size: 200% auto;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shine 8s linear infinite;
}

/* Premium Form Elements */
.input-premium {
  width: 100%;
  padding: 0.875em 1em;
  border: 2px solid rgba(10, 38, 64, 0.1);
  border-radius: 0.25rem;
  font-size: clamp(0.875rem, 1vw + 0.125rem, 1rem);
  transition: var(--transition-normal);
}

.input-premium:focus {
  border-color: var(--cf-accent);
  box-shadow: 0 0 0 4px rgba(101, 228, 163, 0.1);
  outline: none;
}

/* Premium Image Treatments */
.img-premium {
  border-radius: 0.75rem;
  transition: var(--transition-normal);
  filter: brightness(1);
}

.img-premium:hover {
  filter: brightness(1.05);
  transform: scale(1.02);
}

/* Premium Loading States */
.loading-premium {
  position: relative;
  overflow: hidden;
}

.loading-premium::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 200%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 25%,
    rgba(255, 255, 255, 0.2) 50%,
    transparent 75%
  );
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* Premium Scrollbar */
::-webkit-scrollbar {
  width: 0.75rem;
}

::-webkit-scrollbar-track {
  background: var(--cf-light);
}

::-webkit-scrollbar-thumb {
  background: var(--cf-primary);
  border-radius: 0.375rem;
  border: 0.1875rem solid var(--cf-light);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--cf-accent);
}

/* Premium Glass Effect */
.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Premium Responsive Design */
@media (max-width: 768px) {
  :root {
    --h-hero: clamp(2.5rem, 10vw, 4rem);
    --h1: clamp(2rem, 8vw, 3rem);
    --h2: clamp(1.75rem, 6vw, 2.5rem);
    --h3: clamp(1.5rem, 5vw, 2rem);
    --h4: clamp(1.25rem, 4vw, 1.5rem);
    --body-lg: clamp(1rem, 2vw + 0.5rem, 1.25rem);
  }
  
  .section-premium {
    padding: clamp(3rem, 8vh, 4rem) 0;
  }
  
  .cf-container {
    width: 95vw;
    padding: 0 clamp(0.75rem, 2vw, 1.5rem);
  }
}

@media (max-width: 480px) {
  :root {
    --h-hero: clamp(2rem, 12vw, 3rem);
    --h1: clamp(1.75rem, 10vw, 2.5rem);
    --h2: clamp(1.5rem, 8vw, 2rem);
    --h3: clamp(1.25rem, 6vw, 1.75rem);
    --h4: clamp(1.125rem, 5vw, 1.5rem);
  }
}

/* Premium Print Styles */
@media print {
  .btn-premium,
  .animate-float,
  .loading-premium::after {
    animation: none !important;
    transform: none !important;
  }
  
  body {
    color: #000;
    background: #fff;
  }
  
  .card-premium {
    box-shadow: none;
    border: 1px solid #000;
  }
}