/* ==========================================
   BASE — Reset + Typography
   ========================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-regular);
  line-height: var(--lh-normal);
  color: var(--c-parchment);
  background: var(--c-void);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

img {
  object-fit: cover;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

button {
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

/* ─── Typography ─── */
h1, h2, h3, h4, .display {
  font-family: var(--font-display);
  font-weight: var(--fw-light);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: var(--c-parchment);
  font-variation-settings: 'opsz' 144, 'SOFT' 30;
}

h1 { font-size: clamp(2.5rem, 6vw, var(--fs-5xl)); }
h2 { font-size: clamp(2rem, 4.5vw, var(--fs-3xl)); }
h3 { font-size: clamp(1.5rem, 3vw, var(--fs-2xl)); }
h4 {
  font-size: clamp(1.125rem, 2vw, var(--fs-lg));
  font-family: var(--font-body);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-normal);
}

/* ─── Utility text styles ─── */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: var(--fw-regular);
  letter-spacing: var(--ls-widest);
  text-transform: uppercase;
  color: var(--c-gold);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
}

.eyebrow::before {
  content: '';
  display: block;
  width: 2rem;
  height: 1px;
  background: var(--c-gold);
}

.section-number {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wider);
  color: var(--c-parchment-low);
}

.lead {
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
  color: var(--c-parchment-mid);
  max-width: 60ch;
}

.small {
  font-size: var(--fs-sm);
  color: var(--c-parchment-low);
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: var(--ls-wide);
}

/* ─── Container ─── */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.container--wide {
  max-width: var(--container-2xl);
}

.container--narrow {
  max-width: var(--container-md);
}

/* ─── Section ─── */
.section {
  padding: var(--sp-14) 0;
  position: relative;
}

.section--sm {
  padding: var(--sp-10) 0;
}

.section--lg {
  padding: var(--sp-20) 0;
}

.section--divider {
  border-top: var(--border-hairline);
}

/* ─── Section header pattern (eyebrow + number + heading) ─── */
.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--sp-8);
  align-items: end;
  margin-bottom: var(--sp-10);
  padding-bottom: var(--sp-5);
  border-bottom: var(--border-hairline);
}

.section-head__meta {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.section-head__title {
  max-width: 20ch;
}

@media (max-width: 768px) {
  .section-head {
    grid-template-columns: 1fr;
    gap: var(--sp-5);
  }
  .section {
    padding: var(--sp-10) 0;
  }
}

/* ─── Motion base ─── */
@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;
  }
}

/* Reveal-on-scroll base — only hidden when JS marks html as .js */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 900ms var(--ease-out), transform 900ms var(--ease-out);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 { transition-delay: 100ms; }
.reveal--delay-2 { transition-delay: 200ms; }
.reveal--delay-3 { transition-delay: 300ms; }
.reveal--delay-4 { transition-delay: 400ms; }

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 3px;
}

::selection {
  background: var(--c-gold);
  color: var(--c-void);
}