/* =============================================
   Aptioris Static Site — Custom Styles
   ============================================= */

/* Brand tokens (CSS custom properties) */
:root {
  --color-brand-dark: #004680;
  --color-brand-mid: #0073cf;
  --color-brand-light: #4da3e8;
  --color-brand-accent: #ff6b35;
  --color-neutral-900: #111827;
  --color-neutral-800: #1f2937;
  --color-neutral-700: #374151;
  --color-neutral-600: #4b5563;
  --color-neutral-500: #6b7280;
  --color-neutral-400: #9ca3af;
  --color-neutral-300: #d1d5db;
  --color-neutral-200: #e5e7eb;
  --color-neutral-100: #f3f4f6;
  --color-neutral-50: #f9fafb;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

* { border-color: var(--color-neutral-200); }

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--color-neutral-900);
  background-color: #ffffff;
}

::selection {
  background-color: var(--color-brand-mid);
  color: #ffffff;
}

/* Scroll-triggered animation states */
.animate-on-scroll {
  opacity: 0;
}
.animate-on-scroll.is-visible {
  opacity: 1;
}
.animate-on-scroll.fade-up {
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animate-on-scroll.fade-up.is-visible {
  transform: translateY(0);
}
.animate-on-scroll.fade-in {
  transition: opacity 0.5s ease-out;
}
.animate-on-scroll.slide-left {
  transform: translateX(-24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animate-on-scroll.slide-left.is-visible {
  transform: translateX(0);
}
.animate-on-scroll.slide-right {
  transform: translateX(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animate-on-scroll.slide-right.is-visible {
  transform: translateX(0);
}

/* Dropdown transitions */
.dropdown-menu {
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.dropdown:hover .dropdown-menu {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* Mobile menu */
.mobile-overlay {
  display: none;
}
.mobile-overlay.is-open {
  display: block;
}