/* ==========================================================================
   UES GROUP — BASE / RESET / TYPOGRAPHY / LAYOUT PRIMITIVES
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }

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

/* --- Headings / display type ------------------------------------------- */
h1, h2, h3, h4, h5, h6,
.eyebrow, .display, .btn, nav, label, .badge, .stat__value {
  font-family: var(--font-display);
}

h1, h2, h3, h4 {
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
  font-weight: 600;
  color: var(--text);
}

h1 { font-size: var(--fs-4xl); }
h2 { font-size: var(--fs-3xl); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }

p { line-height: var(--lh-relaxed); color: var(--text-secondary); }
p.lead { font-size: var(--fs-lg); color: var(--text-secondary); }

strong { color: var(--text); font-weight: 600; }

/* --- Eyebrow / kicker --------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--brand);
}
.eyebrow::before {
  content: "";
  width: 28px; height: 2px;
  background: var(--brand);
  border-radius: var(--radius-pill);
}
.eyebrow--light { color: var(--brand-300); }
.eyebrow--light::before { background: var(--brand-400); }

/* --- Layout containers -------------------------------------------------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.container--wide { max-width: var(--container-wide); }
.container--narrow { max-width: var(--container-narrow); }

.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }

/* Dark section band with animated crimson glow */
.band-dark {
  position: relative;
  background: var(--dark-bg);
  color: var(--dark-text);
  overflow: hidden;
  isolation: isolate;
}
.band-dark h1, .band-dark h2, .band-dark h3, .band-dark h4 { color: var(--dark-text); }
.band-dark p { color: var(--dark-text-secondary); }

/* Fine grid texture overlay */
.grid-texture::before {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 40%, transparent 100%);
}

/* Crimson glow orbs (the signature motif) */
.orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
  filter: blur(60px);
  opacity: 0.55;
  background: radial-gradient(circle at 30% 30%, var(--brand-400), var(--brand-700) 45%, transparent 70%);
  animation: orbFloat 14s var(--ease-in-out) infinite alternate;
}
@keyframes orbFloat {
  from { transform: translate3d(0,0,0) scale(1); }
  to   { transform: translate3d(4%, -6%, 0) scale(1.12); }
}

/* --- Grids -------------------------------------------------------------- */
.grid { display: grid; gap: var(--space-6); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--auto { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

@media (max-width: 900px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* --- Utilities ---------------------------------------------------------- */
.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.stack > * + * { margin-top: var(--space-4); }
.measure { max-width: 60ch; }

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

/* --- Accessibility: focus + skip link ---------------------------------- */
:focus-visible {
  outline: 3px solid var(--brand-400);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
.band-dark :focus-visible { outline-color: var(--brand-300); }

.skip-link {
  position: absolute; left: var(--space-4); top: -60px;
  background: var(--brand); color: #fff; padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md); z-index: var(--z-toast);
  transition: top var(--dur) var(--ease-out);
}
.skip-link:focus { top: var(--space-4); }

/* --- Scroll reveal ------------------------------------------------------
   Content is visible by DEFAULT. The hidden-then-reveal state is scoped to
   `.js` (set by an inline <head> script) so no-JS users — and users whose JS
   fails — always see the content. The animation only enhances. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.js [data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] { opacity: 1; transform: none; }
}