/* assets/css/style.css */
/* ==========================================================================
   AGD Company -- design tokens, keyframes, reveal, navigation, icons, motion.
   Everything else is Tailwind utility classes in the HTML.
   ========================================================================== */

:root {
  /* -- Colors: petrol + teal, to be re-checked against the original AGD logo -- */
  --color-primary: #0e7a86;
  --color-primary-light: #12919f;
  --color-primary-dark: #0b6670;
  --color-accent: #62e3c8;

  --color-petrol: #0a2b33;
  --color-petrol-deep: #071e24;

  --color-bg: #f3f6f5;
  --color-bg-alt: #ffffff;
  --color-text: #0f1f2e;
  --color-text-muted: #4a5a66;
  --color-border: rgba(15, 31, 46, 0.12);

  /* -- Typography -- */
  --font-heading: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-accent: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;

  /* -- Layout -- */
  --max-width: 1200px;

  /* -- Standard Tokens (auto-injected) -- */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --radius-default: 4px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
}

html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; }

/* -- Keyframes -- */
@keyframes pulse {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 1; }
}

/* Gentle ambient pulse used by the capture / point-cloud diagrams */
[data-anim="pulse"] {
  animation: pulse 2.8s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}

/* -- Scroll reveal -- */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-stagger] > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal-stagger].is-visible > *:nth-child(1) { transition-delay: 0ms; }
[data-reveal-stagger].is-visible > *:nth-child(2) { transition-delay: 100ms; }
[data-reveal-stagger].is-visible > *:nth-child(3) { transition-delay: 200ms; }
[data-reveal-stagger].is-visible > *:nth-child(4) { transition-delay: 300ms; }
[data-reveal-stagger].is-visible > *:nth-child(5) { transition-delay: 400ms; }
[data-reveal-stagger].is-visible > *:nth-child(6) { transition-delay: 500ms; }
[data-reveal-stagger].is-visible > * { opacity: 1; transform: translateY(0); }

/* -- Navigation: compact petrol bar -- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10000; /* above .mobile-menu (9999) so the toggle stays clickable */
  background-color: rgba(7, 30, 36, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: #ffffff;
  transition: box-shadow 0.3s cubic-bezier(0.45, 0, 0.55, 1),
              background-color 0.3s cubic-bezier(0.45, 0, 0.55, 1);
}
.site-header.is-scrolled {
  background-color: rgba(7, 30, 36, 0.97);
  box-shadow: 0 8px 24px rgba(3, 14, 18, 0.35);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  /* Minimum height instead of a fixed one: the full logo sets the real height */
  min-height: 4.5rem;
  max-width: 75rem;
  margin: 0 auto;
  padding: 0.5rem 1.5rem;
}
@media (min-width: 768px) {
  .nav-inner { padding: 0.5rem 2rem; }
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  color: #ffffff;
  text-decoration: none;
}
.nav-desktop {
  display: none;
  align-items: center;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.85rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.84);
  text-decoration: none;
  transition: color 0.2s cubic-bezier(0.33, 1, 0.68, 1);
}
.nav-link:hover,
.nav-link[aria-current="page"] { color: #ffffff; }
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 1.25rem;
  border-radius: 8px;
  background-color: #0e7a86;
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.25s cubic-bezier(0.33, 1, 0.68, 1),
              background-color 0.25s cubic-bezier(0.33, 1, 0.68, 1),
              box-shadow 0.25s cubic-bezier(0.33, 1, 0.68, 1);
}
.nav-cta:hover {
  background-color: #12919f;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  color: #ffffff;
}
/* Desktop navigation from 1024px: the full logo keeps its size, no squeezing */
@media (min-width: 1024px) {
  .nav-desktop { display: flex; }
  .nav-toggle { display: none; }
}

/* -- Mobile menu -- */
.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 9999; /* below .site-header (10000) */
  padding: 6rem 1.5rem 2.5rem;
  background-color: #071e24;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s cubic-bezier(0.45, 0, 0.55, 1);
}
.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}
.mobile-nav-link {
  display: block;
  min-height: 52px;
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  font-size: clamp(1.25rem, 5vw, 1.5rem);
  font-weight: 600;
  color: #ffffff;
  text-decoration: none;
}
.mobile-menu .nav-cta {
  display: flex;
  width: 100%;
  min-height: 52px;
}

/* -- Icons -- */
.icon {
  display: inline-block;
  width: 1.25em;
  height: 1.25em;
  vertical-align: -0.15em;
  flex-shrink: 0;
}
.icon.hidden { display: none; }
.icon-sm { width: 1em; height: 1em; }
.icon-lg { width: 1.5em; height: 1.5em; }
.icon-xl { width: 2em; height: 2em; }

/* -- 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;
  }
  [data-anim] { animation: none !important; }
}
/* -- Base typography (auto-injected) -- */
body { font-family: var(--font-body, 'Inter', -apple-system, system-ui, sans-serif); }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading, var(--font-body, 'Inter', -apple-system, system-ui, sans-serif)); }

.mobile-menu-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: transparent;
  border: 0;
  cursor: pointer;
  color: inherit;
  padding: 0.5rem;
  line-height: 1;
  z-index: 1;
}