@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Manrope:wght@500;700;800&display=swap');

/* ==========================================================================
   1. CUSTOM PROPERTIES
   ========================================================================== */
:root {
  /* Colors - Industrial Prestige (Dark / Default) */
  --primary: #D4AF37;
  --primary-container: #B8860B;
  --on-primary: #3c2f00;
  --on-primary-variant: rgba(60, 47, 0, 0.8);
  
  --surface: #131313;
  --surface-container-low: #222222;
  --surface-container-highest: #353534;
  --surface-bright: #444444;
  
  --on-surface: #ffffff;
  --on-surface-variant: #d0c5af;
  
  --outline-variant: rgba(255, 255, 255, 0.12);
  --glass-bg: var(--surface-container-highest);
  --glass-border: var(--outline-variant);
  --hero-grad-mid: rgba(19, 19, 19, 0.8);

  /* Material Elevation Shadows (Dark) */
  --shadow-ambient: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.5);

  /* Typography */
  --font-display: 'Manrope', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --fs-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --fs-sm: clamp(0.875rem, 0.8rem + 0.38vw, 1rem);
  --fs-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --fs-lg: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --fs-xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --fs-2xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
  --fs-3xl: clamp(2.5rem, 1.75rem + 3.75vw, 4rem);
  --fs-4xl: clamp(3rem, 2rem + 5vw, 6rem);

  /* Spacing */
  --space-xs: clamp(0.5rem, 0.4rem + 0.5vw, 0.75rem);
  --space-sm: clamp(1rem, 0.8rem + 1vw, 1.5rem);
  --space-md: clamp(1.5rem, 1rem + 2.5vw, 3rem);
  --space-lg: clamp(3rem, 2rem + 5vw, 6rem);
  --space-xl: clamp(5rem, 3rem + 10vw, 10rem);

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1.5rem;
}

[data-theme="light"] {
  /* Colors - Light Theme Overrides */
  --primary: #B8860B;
  --primary-container: #8B6508;
  --on-primary: #ffffff;
  --on-primary-variant: rgba(255, 255, 255, 0.8);
  
  --surface: #ffffff;
  --surface-container-low: #f8f9fa;
  --surface-container-highest: #eeeeee;
  --surface-bright: #e0e0e0;
  
  --on-surface: #111111;
  --on-surface-variant: #404040;
  
  --outline-variant: rgba(0, 0, 0, 0.12);
  --glass-bg: var(--surface);
  --glass-border: var(--outline-variant);
  --hero-grad-mid: rgba(255, 255, 255, 0.8);

  /* Material Elevation Shadows (Light) */
  --shadow-ambient: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   2. RESET
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--surface);
  color: var(--on-surface-variant);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

a {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   3. TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4, .display {
  font-family: var(--font-display);
  color: var(--on-surface);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--fs-4xl); margin-bottom: var(--space-sm); }
h2 { font-size: var(--fs-3xl); margin-bottom: var(--space-sm); }
h3 { font-size: var(--fs-2xl); margin-bottom: var(--space-xs); }
h4 { font-size: var(--fs-xl); }

.kicker {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  font-weight: 600;
  display: block;
  margin-bottom: var(--space-xs);
}

p {
  margin-bottom: var(--space-sm);
  max-width: 65ch;
  line-height: 1.6;
}

/* ==========================================================================
   4. LAYOUT
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

.section {
  padding: var(--space-lg) 0;
}

.section-alt {
  background-color: var(--surface-container-low);
}

.grid {
  display: grid;
  gap: var(--space-md);
}

.flex {
  display: flex;
  gap: var(--space-sm);
}

.flex-col {
  flex-direction: column;
}

.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

/* ==========================================================================
   5. COMPONENTS
   ========================================================================== */

/* Header & Nav */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  background: color-mix(in srgb, var(--surface) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-ambient);
  z-index: 100;
  padding: var(--space-xs) 0;
}

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

.nav-brand img {
  height: 40px;
  width: auto;
}

/* Logo specific logic - pure CSS */
[data-theme="light"] .logo-dark { display: block; }
[data-theme="light"] .logo-light { display: none; }
body:not([data-theme="light"]) .logo-dark { display: none; }
body:not([data-theme="light"]) .logo-light { display: block; }

.nav-links {
  display: none;
  list-style: none;
  gap: var(--space-sm);
}

.nav-links a {
  font-weight: 500;
  font-size: var(--fs-sm);
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--primary);
}

.menu-toggle {
  display: block;
  font-size: var(--fs-xl);
  color: var(--on-surface);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-cta {
  display: none;
}

/* Mobile Menu Expansion */
.nav-links.active {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  max-height: calc(100vh - 80px); /* Prevent overflow past viewport */
  overflow-y: auto;
  background: var(--surface);
  padding: var(--space-sm);
  border-bottom: 1px solid var(--outline-variant);
  z-index: 100;
  box-shadow: var(--shadow-ambient);
}

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--surface-container-highest);
  color: var(--on-surface);
  transition: background 0.3s ease;
}
.theme-toggle:hover {
  background: var(--surface-bright);
}
.theme-toggle svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}
[data-theme="light"] .icon-moon { display: none; }
body:not([data-theme="light"]) .icon-sun { display: none; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8em 1.6em;
  border-radius: var(--radius-lg);
  font-weight: 700;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: var(--fs-sm);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: var(--on-primary);
  box-shadow: var(--shadow-ambient);
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0px) scale(0.98);
  box-shadow: none;
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  border: 1px solid var(--outline-variant);
  color: var(--primary);
  border-radius: var(--radius-lg);
}

.btn-secondary:hover {
  background: var(--surface-container-highest);
  border-color: var(--primary);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding-top: 6rem; /* offset header */
  padding-bottom: 5rem; /* room for buttons above fade */
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  z-index: 0;
  background-color: var(--surface);
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

[data-theme="light"] .hero-bg img {
  opacity: 0.85;
}

.hero-gradient-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, var(--surface) 0%, var(--hero-grad-mid) 60%, transparent 100%),
    linear-gradient(to top, var(--surface) 0%, transparent 35%);
}

[data-theme="light"] .hero-img-dark { display: none; }
[data-theme="light"] .hero-img-light { display: block; }
body:not([data-theme="light"]) .hero-img-dark { display: block; }
body:not([data-theme="light"]) .hero-img-light { display: none; }

.hero-content {
  max-width: 48rem;
}

.hero-kicker {
  display: inline-block;
  padding: 0.25rem 1rem;
  margin-bottom: 1.5rem;
  background: var(--surface-container-highest);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 9999px;
  color: var(--primary);
  font-weight: 600;
  font-size: var(--fs-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-title {
  font-size: clamp(3.5rem, 8vw, 6rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1;
  margin-bottom: 2rem;
}

.hero-desc {
  font-size: 1.25rem;
  color: var(--on-surface-variant);
  margin-bottom: 3rem;
  max-width: 36rem;
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .hero-cta-group {
    flex-direction: row;
  }
}

.btn-hero-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
  color: var(--on-primary);
  padding: 1.25rem 2.5rem;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 15px -3px rgba(212, 175, 55, 0.1);
  transition: all 0.3s;
}

.btn-hero-primary:hover {
  box-shadow: 0 10px 15px -3px rgba(212, 175, 55, 0.2);
  transform: scale(0.98);
}

.btn-hero-primary:active {
  transform: scale(0.96);
  box-shadow: none;
}

.btn-hero-secondary {
  border: 1px solid rgba(153, 144, 124, 0.2);
  color: var(--on-surface);
  padding: 1.25rem 2.5rem;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: var(--radius-lg);
  transition: all 0.3s;
}

.btn-hero-secondary:hover {
  background: var(--surface-container-low);
}

.btn-hero-secondary:active {
  transform: scale(0.97);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  opacity: 0.5;
}

.hero-scroll-indicator span {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-weight: 600;
}

.hero-scroll-indicator .line {
  width: 1px;
  height: 3rem;
  background: var(--primary);
}

/* Horizontal Infinite Marquee (Trust Bar) */
.trust-marquee {
  width: 100vw;
  overflow: hidden;
  background: var(--surface-container-highest);
  padding: var(--space-md) 0;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  border-top: 1px solid var(--outline-variant);
  border-bottom: 1px solid var(--outline-variant);
  display: flex;
}

.trust-marquee::before,
.trust-marquee::after {
  content: '';
  position: absolute;
  top: 0;
  width: 15%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}
.trust-marquee::before {
  left: 0;
  background: linear-gradient(to right, var(--surface-container-highest), transparent);
}
.trust-marquee::after {
  right: 0;
  background: linear-gradient(to left, var(--surface-container-highest), transparent);
}

.trust-marquee-track {
  display: flex;
  gap: var(--space-md);
  padding-left: var(--space-md);
  width: max-content;
  animation: scroll-marquee 30s linear infinite;
}

.trust-marquee-track:hover {
  animation-play-state: paused;
}

.trust-card {
  width: clamp(280px, 30vw, 450px);
  height: clamp(200px, 25vw, 350px);
  flex-shrink: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-ambient);
  cursor: pointer;
}

.trust-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) opacity(0.7);
  transition: filter 0.5s ease, transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.trust-card:hover img {
  filter: grayscale(0%) opacity(1);
  transform: scale(1.05);
}

@keyframes scroll-marquee {
  0% { transform: translateX(0); }
  /* Since we duplicate exactly, we want it to shift half the total width of the track */
  100% { transform: translateX(calc(-50% - (var(--space-md) / 2))); }
}

/* Cards & Lists (No Divders Rule) */
.industrial-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.card {
  background: var(--surface-container-low);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
  background: var(--surface-container-highest);
  transform: translateY(-4px);
  box-shadow: var(--shadow-ambient);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-sm);
}

label {
  display: block;
  font-size: var(--fs-sm);
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--on-surface);
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
  width: 100%;
  padding: 0.8em 1em;
  background: var(--surface-container-highest);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--on-surface);
  transition: all 0.2s ease;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  background: var(--surface-bright);
}
[data-theme="dark"] input:focus,
[data-theme="dark"] textarea:focus {
  border-bottom: 2px solid var(--primary);
}
input:focus, textarea:focus {
  border-bottom: 2px solid var(--primary); /* Enforcing base behavior */
}

/* Form Status */
.form-status {
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-top: 1rem;
  display: none;
  font-weight: 500;
}
.form-status.success {
  display: block;
  background: rgba(46, 204, 113, 0.1);
  color: #2ecc71;
  border: 1px solid rgba(46, 204, 113, 0.2);
}
.form-status.error {
  display: block;
  background: rgba(231, 76, 60, 0.1);
  color: #e74c3c;
  border: 1px solid rgba(231, 76, 60, 0.2);
}

/* Cloudinary Upload Preview */
.upload-preview {
  margin-top: 0.5rem;
  font-size: var(--fs-xs);
  color: var(--primary);
  display: none;
}
.upload-preview.visible { display: block; }

/* Map Container */
.map-container {
  width: 100%;
  height: 500px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-ambient);
}
.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: grayscale(100%) invert(90%) hue-rotate(180deg); /* Basic Dark map filter */
}
[data-theme="light"] .map-container iframe {
  filter: grayscale(20%);
}

/* Floating WhatsApp Button */
.fab-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-ambient);
  z-index: 99;
  transition: all 0.3s ease;
  color: var(--on-primary);
}
.fab-whatsapp:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: var(--shadow-glow);
}
.fab-whatsapp svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

/* Footer */
.site-footer {
  background: var(--surface-container-low);
  padding: var(--space-lg) 0 var(--space-sm);
  border-top: 1px solid var(--outline-variant);
  text-align: center;
}

/* ==========================================================================
   6. UTILITIES & LAYOUT MODULES
   ========================================================================== */
.text-center { text-align: center; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

.w-full { width: 100%; }
.h-full { height: 100%; }
.relative { position: relative; }
.absolute { position: absolute; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.z-10 { z-index: 10; }
.z-0 { z-index: 0; }
.overflow-hidden { overflow: hidden; }

.gold-gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* MCA-style stacked brand text */
.brand-text-stack {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin-left: 0.6rem;
}

.brand-text-line {
  display: flex;
  align-items: center;
  gap: 2px;
  line-height: 1;
}

.brand-letter-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.1em;
  height: 1.1em;
  background: var(--on-surface);
  color: var(--surface);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.7rem;
  text-transform: uppercase;
  flex-shrink: 0;
}

.brand-letter-rest {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--on-surface);
}

/* Footer variant — slightly smaller */
.footer-brand-stack .brand-letter-box {
  font-size: 0.6rem;
  width: 1.1em;
  height: 1.1em;
}
.footer-brand-stack .brand-letter-rest {
  font-size: 0.6rem;
}

/* Typography Utilities */
.text-primary { color: var(--primary); }
.text-on-surface { color: var(--on-surface); }
.text-on-surface-variant { color: var(--on-surface-variant); }
.text-on-primary { color: var(--on-primary); }
.text-on-primary-variant { color: var(--on-primary-variant); }

.bg-surface { background-color: var(--surface); }
.bg-surface-container-low { background-color: var(--surface-container-low); }
.bg-surface-container-highest { background-color: var(--surface-container-highest); }

.font-headline { font-family: var(--font-display); }
.font-body { font-family: var(--font-body); }
.font-black { font-weight: 800; }
.font-bold { font-weight: 700; }
.font-label { font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; }
.font-light { font-weight: 300; }

.fs-xs, .text-xs { font-size: var(--fs-xs); }
.fs-sm, .text-sm { font-size: var(--fs-sm); }
.fs-base, .text-base { font-size: var(--fs-base); }
.fs-lg, .text-lg { font-size: var(--fs-lg); }
.fs-xl, .text-xl { font-size: var(--fs-xl); }
.fs-2xl, .text-2xl { font-size: var(--fs-2xl); }
.fs-3xl, .text-3xl { font-size: var(--fs-3xl); }
.fs-4xl, .text-4xl { font-size: var(--fs-4xl); }
.fs-5xl, .text-5xl { font-size: clamp(3.5rem, 3rem + 5vw, 6rem); }
.text-6xl { font-size: clamp(4rem, 3.5rem + 6vw, 7rem); }
.text-8xl { font-size: clamp(5rem, 4rem + 8vw, 9rem); }

.tracking-tighter { letter-spacing: -0.05em; }
.tracking-tight { letter-spacing: -0.025em; }
.tracking-widest { letter-spacing: 0.1em; }

.uppercase { text-transform: uppercase; }
.leading-none { line-height: 1; }
.leading-tight { line-height: 1.1; }
.leading-relaxed { line-height: 1.6; }

.block { display: block; }
.inline-block { display: inline-block; }
.mx-auto { margin-left: auto; margin-right: auto; }
.my-auto { margin-top: auto; margin-bottom: auto; }
.border-y { border-top: 1px solid var(--outline-variant); border-bottom: 1px solid var(--outline-variant); }
.border-outline-variant { border-color: var(--outline-variant); }

/* Bento Box & Glass Cards */
.bento-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--surface-container-highest);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 300px;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.bento-item-low {
  background: var(--surface-container-low);
}

.bento-item:hover {
  transform: translateY(-4px);
}

/* Codified: col-4 bento cards get proportional heading size */
.col-4 .bento-item h3 {
  font-size: var(--fs-xl);
}

/* Body text line length inside grid/flex sections */
.section .grid p,
.section .flex p {
  max-width: 65ch;
}

.bento-img {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.2;
  transition: transform 0.7s ease, opacity 0.4s ease;
}

.bento-item:hover .bento-img {
  transform: scale(1.05);
  opacity: 0.3;
}

.bento-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(to top, var(--surface-container-low), transparent);
}

.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-ambient);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.aspect-4-5 {
  aspect-ratio: 4 / 5;
}
.grayscale-contrast {
  filter: grayscale(100%) contrast(120%);
}

/* CTA Trust Bar full width */
.cta-trust-bar {
  background: var(--primary-container);
  color: var(--on-primary);
  padding: var(--space-lg) 0;
  position: relative;
  overflow: hidden;
}
.cta-trust-bar .btn-secondary {
  border-color: var(--on-primary);
  color: var(--on-primary);
}
.cta-trust-bar .btn-secondary:hover {
  background: var(--surface-dim);
  color: var(--primary);
  border-color: transparent;
}
.cta-watermark {
  position: absolute;
  top: 0;
  right: 0;
  opacity: 0.1;
  pointer-events: none;
  font-size: 200px;
  font-weight: 800;
  font-family: var(--font-display);
  user-select: none;
}

/* Accessibility */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 4px;
}

/* ==========================================================================
   7. MEDIA QUERIES
   ========================================================================== */

/* Mobile: collapse bento grid to single column */
/* Mobile: scaling & adjustments */
@media (max-width: 767px) {
  .nav-brand img {
    height: 28px;
  }
  .brand-text-stack {
    margin-left: 0.4rem;
    gap: 0px;
  }
  .brand-letter-box {
    font-size: 0.5rem;
  }
  .brand-letter-rest {
    font-size: 0.5rem;
    letter-spacing: 0.03em;
  }
  .site-header .container {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }
  .nav-actions {
    gap: 0.5rem;
  }
  .nav-cta {
    display: none !important;
  }
  .nav-mobile-cta {
    display: block;
    margin-top: 1rem;
    padding: 1rem;
    border: 1px solid var(--primary);
    border-radius: var(--radius-sm);
    color: var(--primary) !important;
    text-align: center;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: background 0.3s ease;
  }
  .nav-mobile-cta:active {
    background: color-mix(in srgb, var(--primary) 10%, transparent);
  }
}

@media (max-width: 1023px) {
  .grid-12 {
    display: grid;
    grid-template-columns: 1fr;
  }
  .col-4,
  .col-6,
  .col-8,
  .col-12 {
    grid-column: span 1;
  }
  .bento-item {
    min-height: 280px;
  }
}

@media (min-width: 480px) {
  /* Minor adjustments */
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
  .menu-toggle {
    display: none;
  }
  .nav-cta {
    display: inline-flex !important;
  }
  .nav-mobile-cta {
    display: none;
  }
  .hero {
    min-height: 90vh;
  }
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .bento-item {
    min-height: 400px;
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
  /* 12-column grid for Bento Boxes */
  .grid-12 {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-sm);
  }
  .col-8 { grid-column: span 8; }
  .col-4 { grid-column: span 4; }
  .col-6 { grid-column: span 6; }
  .col-12 { grid-column: span 12; }

  /* Asymmetrical Architecture rule */
  .hero-content {
    margin-left: var(--space-xl);
  }
}

@media (min-width: 1280px) {
  /* Extra wide screen formatting */
}

/* ==========================================================================
   FORM STATUS BANNERS
   ========================================================================== */
.form-status-banner {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem 2rem;
  border-radius: var(--radius-md);
  animation: fadeSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-status-success {
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 40%, transparent);
}

.form-status-error {
  background: color-mix(in srgb, #e53935 12%, transparent);
  border: 1px solid color-mix(in srgb, #e53935 40%, transparent);
}

.form-status-icon {
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1;
  flex-shrink: 0;
}

.form-status-success .form-status-icon { color: var(--primary); }
.form-status-error .form-status-icon { color: #e53935; }

.form-status-msg {
  margin: 0;
  font-size: var(--fs-sm);
  font-weight: 500;
  line-height: 1.6;
  color: var(--on-surface);
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Register page hero image — dark mode: dramatic B&W, light mode: full colour */
body:not([data-theme="light"]) .register-hero-img {
  filter: grayscale(80%) contrast(1.1);
}
[data-theme="light"] .register-hero-img {
  filter: none;
}