/* ============================================================
   WAFGENE — BASE
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--ink-700);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink-900);
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}
h1 { font-size: var(--step-5); font-weight: 700; }
h2 { font-size: var(--step-4); font-weight: 700; }
h3 { font-size: var(--step-2); font-weight: 600; }
h4 { font-size: var(--step-1); font-weight: 600; }
p { margin: 0 0 1em; max-width: 62ch; }
.lede { font-size: var(--step-1); color: var(--ink-500); max-width: 52ch; }

:focus-visible {
  outline: 2.5px solid var(--violet-600);
  outline-offset: 3px;
  border-radius: 4px;
}

/* --- Layout --- */
.wrap {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: 24px;
}
@media (min-width: 768px) { .wrap { padding-inline: 40px; } }

section { padding-block: clamp(56px, 8vw, 108px); }
.section-tight { padding-block: clamp(40px, 5vw, 64px); }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
@media (min-width: 900px) {
  .grid-2 { grid-template-columns: 1fr 1fr; gap: 40px; }
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
@media (min-width: 700px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (min-width: 900px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.stack { display: flex; flex-direction: column; }
.cluster { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.bleed-dark {
  background: var(--dark);
  color: rgba(255,255,255,0.86);
}
.bleed-dark h2, .bleed-dark h3, .bleed-dark h4 { color: #fff; }
.bleed-tint { background: var(--paper-tint); }
.bleed-dusk { background: var(--paper-dusk); }

.kicker {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--violet-700);
  margin: 0 0 14px;
}
.bleed-dark .kicker { color: var(--orchid-300); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1.5px solid transparent;
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--violet-600);
  color: #fff;
}
.btn-primary:hover { background: var(--violet-700); box-shadow: var(--shadow-raise); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  border-color: var(--ink-100);
  color: var(--ink-900);
}
.btn-outline:hover { border-color: var(--violet-600); color: var(--violet-700); }
.bleed-dark .btn-outline { border-color: rgba(255,255,255,0.28); color: #fff; }
.bleed-dark .btn-outline:hover { border-color: var(--orchid-300); color: var(--orchid-300); }
.btn-ghost {
  background: transparent;
  color: var(--violet-700);
  padding-inline: 4px;
}
.btn-ghost:hover { color: var(--violet-900); }
.btn-sm { padding: 9px 18px; font-size: 0.875rem; }

/* --- Text link with motion underline --- */
.link-motion {
  position: relative;
  font-weight: 600;
  color: var(--ink-900);
  padding-bottom: 2px;
  background-image: linear-gradient(var(--violet-600), var(--violet-600));
  background-repeat: no-repeat;
  background-size: 0% 2px;
  background-position: left bottom;
  transition: background-size .28s var(--ease);
}
.link-motion:hover { background-size: 100% 2px; }

/* --- Cards --- */
.card {
  background: var(--paper);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-md);
  padding: 28px;
}

/* --- Divider ribbon (brand motif) --- */
.ribbon-divider {
  display: block;
  width: 100%;
  height: 46px;
  color: var(--ink-100);
}
.bleed-tint + .ribbon-divider,
.bleed-dusk + .ribbon-divider { color: var(--paper-tint); }

/* --- Utility --- */
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap;
}
.center { text-align: center; }
.mx-auto { margin-inline: auto; }

/* --- Reveal on scroll (single orchestrated entrance) --- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}