/* ==========================================================================
   Bemoria — Base: reset, typography, layout primitives
   ========================================================================== */

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

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

body {
  margin: 0;
  background: var(--surface-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-regular);
  line-height: 1.5;
  letter-spacing: var(--tracking-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

body.is-locked { overflow: hidden; }

img, video, svg, canvas { display: block; max-width: 100%; }
img { height: auto; }
button, input, select, textarea { font: inherit; color: inherit; letter-spacing: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
a { color: inherit; text-decoration: none; }
ul[role="list"], ol[role="list"] { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
h1, h2, h3, h4, strong { font-weight: inherit; }
strong { font-weight: var(--weight-medium); }

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--color-gold-soft); color: var(--color-navy); }

/* ---- Typography ------------------------------------------------------- */

.t-hero,
.t-display,
.t-heading,
.t-subheading {
  font-weight: var(--weight-regular);
  text-wrap: balance;
}

.t-hero       { font-size: var(--text-hero); line-height: 1.04; letter-spacing: var(--tracking-tight); }
.t-display    { font-size: var(--text-display); line-height: 1.08; letter-spacing: var(--tracking-display); }
.t-heading    { font-size: var(--text-heading); line-height: 1.12; letter-spacing: var(--tracking-display); }
.t-subheading { font-size: var(--text-subheading); line-height: 1.2; letter-spacing: -0.015em; }
.t-body       { font-size: var(--text-body); line-height: 1.45; }
.t-body-sm    { font-size: var(--text-body-sm); line-height: 1.5; }
.t-caption    { font-size: var(--text-caption); line-height: 1.45; }
.t-label      { font-size: var(--text-label); line-height: 1.5; font-weight: var(--weight-medium); letter-spacing: var(--tracking-label); text-transform: uppercase; }

.t-muted   { color: var(--text-secondary); }
.t-gold    { color: var(--color-gold-ink); }
.t-center  { text-align: center; }

.on-dark .t-muted { color: var(--text-inverse-secondary); }
.on-dark .t-gold  { color: var(--color-gold); }

.prose p + p { margin-top: 1em; }
.prose { max-width: 54ch; }

/* ---- Layout ----------------------------------------------------------- */

.container {
  width: 100%;
  max-width: calc(var(--page-max-width) + var(--page-gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.container--narrow { max-width: calc(800px + var(--page-gutter) * 2); }

.section { padding-block: var(--section-pad); }
.section--tight { padding-block: clamp(48px, 6vw, 80px); }
.section--raised { background: var(--surface-raised); }
.section--dark { background: var(--surface-dark); color: var(--text-inverse); }

/* Rounded seam: a section that slides over the one above it */
.seam {
  position: relative;
  z-index: 1;
  margin-top: calc(var(--radius-seam) * -1);
  border-radius: var(--radius-seam) var(--radius-seam) 0 0;
  background: var(--surface-canvas);
}
.seam.section--dark { background: var(--surface-dark); }
.seam.section--raised { background: var(--surface-raised); }

.stack > * + * { margin-top: var(--stack-gap, var(--space-16)); }
.stack--8  { --stack-gap: var(--space-8); }
.stack--24 { --stack-gap: var(--space-24); }
.stack--32 { --stack-gap: var(--space-32); }

.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--cluster-gap, var(--space-16)); }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-24);
  margin-bottom: clamp(32px, 4vw, 56px);
}
.section-head > :first-child { max-width: 620px; }
.section-head--center { flex-direction: column; align-items: center; text-align: center; }
.section-head--center > :first-child { max-width: 760px; }

@media (max-width: 720px) {
  .section-head { flex-direction: column; align-items: flex-start; }
  .section-head--center { align-items: center; }
}

.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;
}

.skip-link {
  position: absolute;
  left: 16px; top: -48px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--color-navy);
  color: var(--color-cream);
  border-radius: var(--radius-pill);
  transition: top var(--duration-fast);
}
.skip-link:focus { top: 12px; }

/* ---- Motion: reveal on scroll ----------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out);
  transition-delay: calc(var(--i, 0) * 90ms);
}
.reveal.is-visible { opacity: 1; transform: none; }

.reveal-img { overflow: hidden; }
.reveal-img img {
  transform: scale(1.12);
  transition: transform 1.6s var(--ease-out);
}
.reveal-img.is-visible img { transform: none; }

.no-js .reveal { opacity: 1; transform: none; }
.no-js .reveal-img img { transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
  .reveal, .reveal-img img { opacity: 1; transform: none; }
}