/* svyn-base.css — Reset + typography + layout primitives */
@import url('https://fonts.googleapis.com/css2?family=Inter+Tight:wght@600;700&family=Inter:wght@400;500&family=JetBrains+Mono:wght@400&display=swap');

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: var(--svyn-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--svyn-fg-light-1);
  background: var(--svyn-bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.svyn-page--dark-top {
  background: var(--svyn-bg-dark);
}

body.svyn-page--light-top {
  background: var(--svyn-bg-light);
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: inherit;
}

/* ── Container ── */
.svyn-container {
  max-width: var(--svyn-container-max);
  margin: 0 auto;
  padding: 0 var(--svyn-container-pad);
}

/* ── Section backgrounds ── */
.svyn-section--dark {
  background: var(--svyn-bg-dark);
}

.svyn-section--dark-alt {
  background: var(--svyn-bg-dark-alt);
}

.svyn-section--light {
  background: var(--svyn-bg-light);
}

.svyn-section--white {
  background: var(--svyn-bg-white);
}

.svyn-section--cream {
  background: var(--svyn-bg-cream);
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter Tight', 'Inter', system-ui, sans-serif;
  font-weight: 600;
  line-height: 1.2;
  color: var(--svyn-fg-light-1);
}

h1 { font-size: var(--svyn-h1); }
h2 { font-size: var(--svyn-h2); }
h3 { font-size: var(--svyn-h3); }

p {
  line-height: 1.7;
  color: var(--svyn-fg-light-2);
}

/* Dark section text overrides */
.svyn-section--dark h1,
.svyn-section--dark h2,
.svyn-section--dark h3,
.svyn-section--dark h4 {
  color: var(--svyn-fg-dark-1);
}

.svyn-section--dark p,
.svyn-section--dark li {
  color: var(--svyn-fg-dark-2);
}

.svyn-section--dark-alt h1,
.svyn-section--dark-alt h2,
.svyn-section--dark-alt h3,
.svyn-section--dark-alt h4 {
  color: var(--svyn-fg-dark-1);
}

.svyn-section--dark-alt p,
.svyn-section--dark-alt li {
  color: var(--svyn-fg-dark-2);
}

/* ── Eyebrow ── */
.svyn-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: var(--svyn-eyebrow-size);
  font-weight: 500;
  letter-spacing: var(--svyn-eyebrow-track);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.75rem;
}

.svyn-section--light .svyn-eyebrow,
.svyn-section--white .svyn-eyebrow,
.svyn-section--cream .svyn-eyebrow {
  color: var(--svyn-accent-light);
}

.svyn-section--dark .svyn-eyebrow,
.svyn-section--dark-alt .svyn-eyebrow {
  color: var(--svyn-accent-dark);
}

/* ── Fade-in animation ── */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Failsafe: after 1.2s, all fade-ins become visible regardless */
@keyframes svyn-reveal {
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: svyn-reveal 0s 1.2s forwards;
}

/* ── Section separator ── */
.svyn-section--dark + .svyn-section--dark {
  border-top: 1px solid var(--svyn-border-dark);
}

/* ── Utilities ── */
.svyn-text-center { text-align: center; }
.svyn-mt-sm { margin-top: 0.75rem; }
.svyn-mt-md { margin-top: 1.5rem; }
.svyn-mt-lg { margin-top: 2.5rem; }
.svyn-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

/* ── Grid helpers ── */
.svyn-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.svyn-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.svyn-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

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

@media (max-width: 600px) {
  .svyn-grid-2,
  .svyn-grid-3,
  .svyn-grid-4 { grid-template-columns: 1fr; }
}