/* ================================================================
   Layout — базовая типографика, сетки, ритм секций
   ================================================================ */

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--ink-2);
  background: var(--bg);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -.015em;
}

h1 { font-size: var(--fs-h1); line-height: var(--lh-display); letter-spacing: -.03em; }
h2 { font-size: var(--fs-h2); line-height: 1.08;  letter-spacing: -.022em; }
h3 { font-size: var(--fs-h3); line-height: 1.2; }

p { max-width: 68ch; }

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

/* ---- Containers ---- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--narrow { max-width: var(--maxw-narrow); }
.wrap--wide   { max-width: 1360px; }

/* ---- Sections ---- */
.section {
  padding-block: var(--pad-section);
  position: relative;
}
.section--tight { padding-block: calc(var(--pad-section) * .62); }
.section--soft  { background: var(--bg-soft); }
.section--wash  { background: var(--accent-wash); }

/* ---- Section heading ---- */
.sec-head {
  max-width: 720px;
  margin-bottom: clamp(40px, 5vw, 64px);
}
.sec-head--center {
  margin-inline: auto;
  text-align: center;
}
.sec-head p {
  margin-top: 18px;
  font-size: var(--fs-lead);
  color: var(--ink-soft);
}
.sec-head--center p { margin-inline: auto; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.sec-head--center .eyebrow::before { display: none; }

/* ---- Grids ---- */
.grid { display: grid; gap: clamp(20px, 2.4vw, 32px); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 960px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
}

/* ---- Reveal on scroll (reveal.js) ---- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }

/* Стагger внутри группы */
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }
.reveal[data-d="4"] { transition-delay: .32s; }
.reveal[data-d="5"] { transition-delay: .40s; }

/* Если JS не загрузился — контент всё равно виден */
.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* На мобилке отступ снизу под sticky bar (C3) */
@media (max-width: 768px) {
  body { padding-bottom: 72px; }
}