/* Chicago Showcase - Midnight Cerulean Design System */
:root {
  --chi-accent: #00A8E8;
  --chi-accent-glow: rgba(0, 168, 232, 0.4);
  --chi-red: #C60C30;
  --chi-navy: #004B76;
  --obsidian: #0A0A0A;
  --obsidian-surface: #121212;
  --glass-white: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --spotlight-silver: #E2E8F0;
  
  /* Midnight Cerulean Palette */
  --midnight: #0F172A;
  --neon-teal: #00F5FF;
  --neon-amber: #FFB800;
  --brick-red: #A80000;

  /* Layout: Fixed Header Dimensions */
  --header-height: 5rem;       /* 80px — unscrolled max */
  --header-height-safe: 8rem;  /* 128px — comfortable clearance zone */
}

.bg-midnight {
  background-color: var(--midnight);
}

/* Contrast Defense Utilities */
.bg-neon-teal { background-color: var(--neon-teal); }
.text-neon-teal { color: var(--neon-teal); }
.border-neon-teal { border-color: var(--neon-teal); }

.bg-neon-amber { background-color: var(--neon-amber); }
.text-neon-amber { color: var(--neon-amber); }
.border-neon-amber { border-color: var(--neon-amber); }

.bg-brick-red { background-color: var(--brick-red); }
.text-brick-red { color: var(--brick-red); }
.border-brick-red { border-color: var(--brick-red); }

.listing-image-filter {
  filter: brightness(0.8) contrast(1.2) saturate(0.6) sepia(0.1);
}

.grain-overlay {
  position: relative;
}

.grain-overlay::before {
  content: "";
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.04;
  pointer-events: none;
  z-index: 10;
}

html, body {
  max-width: 100vw;
  overflow-x: hidden;
  position: relative;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: var(--header-height-safe);
  font-family: 'Inter', sans-serif; 
  background-color: var(--midnight);
  color: #fcfcfc;
}

.locked-scroll {
  max-width: 100% !important;
  overflow-x: hidden !important;
}

/* Defensive CSS Audit: Global Guards */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
  word-wrap: break-word;
  word-break: break-word;
}

h1, h2, h3, .chicago-font { 
  font-family: 'Playfair Display', serif; 
  letter-spacing: -0.04em;
}

/* Color Tokens */
.bg-chi-accent { background-color: var(--chi-accent); }
.text-chi-accent { color: var(--chi-accent); }
.bg-chi-red { background-color: var(--chi-red); }
.text-chi-red { color: var(--chi-red); }
.bg-chi-navy { background-color: var(--chi-navy); }
.border-chi-accent { border-color: var(--chi-accent); }
.text-spotlight-silver { color: var(--spotlight-silver); }

/* Premium Surface Primitives */
.glass-obsidian {
  background: rgba(10, 10, 10, 0.8);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
}

.glass-accent {
  background: rgba(0, 168, 232, 0.05);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 168, 232, 0.2);
}

.accent-border-gradient {
  border: 1px solid transparent;
  background-image: linear-gradient(white, white), radial-gradient(circle at top left, #00A8E8, #C60C30);
  background-origin: border-box;
  background-clip: content-box, border-box;
}

/* Animations & Effects */
@keyframes sparkle {
  0% { transform: scale(1) rotate(0deg); opacity: 0.5; }
  50% { transform: scale(1.2) rotate(180deg); opacity: 1; }
  100% { transform: scale(1) rotate(360deg); opacity: 0.5; }
}

.animate-sparkle {
  animation: sparkle 4s linear infinite;
}

.hover-lift {
  transition: all 0.5s cubic-bezier(0.2, 1, 0.3, 1);
}

.hover-lift:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: 0 40px 80px -20px rgba(0,0,0,0.15);
}

/* Typography Overrides */
.tracking-tight-titles {
  letter-spacing: -0.06em;
  line-height: 0.85;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 200px;
  gap: 24px;
}

/* Scrollbar Utilities */
.scrollbar-hide::-webkit-scrollbar {
  display: none;
}

.scrollbar-hide {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* Phase 1 Custom Elite Animations */
@keyframes kenBurns {
  0% { transform: scale(1.05); }
  100% { transform: scale(1.15) translate(-1%, -1%); }
}

.animate-ken-burns {
  animation: kenBurns 30s ease-in-out infinite alternate;
}

.light-sweep {
  position: relative;
  overflow: hidden;
}

.light-sweep::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.3) 50%, rgba(255,255,255,0) 100%);
  transform: skewX(-25deg);
  animation: sweep 4s cubic-bezier(0.2, 1, 0.3, 1) infinite;
  z-index: 10;
  pointer-events: none;
}

@keyframes sweep {
  0% { left: -100%; }
  15% { left: 200%; }
  100% { left: 200%; }
}