/* ============================================================
   SYNODEV — Layout: container, grid, guide lines, sections
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  position: relative;
  padding-block: clamp(7rem, 16vh, 16rem);
}
.section--tight { padding-block: clamp(4rem, 9vh, 8rem); }
.section--flush { padding-block: 0; }

.page {
  position: relative;
  z-index: var(--z-content);
}

/* Two-column editorial grid ------------------------------------------ */
.grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(12, 1fr);
}
@media (max-width: 767px) {
  .grid { grid-template-columns: repeat(6, 1fr); gap: var(--space-md); }
}

/* Section header pattern --------------------------------------------- */
.section-head {
  display: grid;
  gap: var(--space-md);
  margin-bottom: clamp(3.5rem, 10vh, 9rem);
}
@media (min-width: 900px) {
  .section-head {
    grid-template-columns: 1fr 1fr;
    align-items: end;
    gap: var(--space-xl);
  }
}
.section-head__title {
  font-size: var(--step-4);
  font-weight: var(--weight-display);
  line-height: 0.95;
  letter-spacing: -0.028em;
}

/* Rules & dividers ---------------------------------------------------- */
.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

/* Bridge strip — the "exhale" between chapters ------------------------ */
.bridge {
  position: relative;
  padding-block: var(--space-2xl);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.bridge__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.bridge__beam {
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* Sticky stage (pinned scroll sequences) ------------------------------ */
.stage { position: relative; }
.stage__sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* Footer -------------------------------------------------------------- */
.site-footer {
  position: relative;
  padding-block: var(--space-3xl) var(--space-lg);
  border-top: 1px solid var(--line);
}
.site-footer__grid {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
}
@media (min-width: 900px) {
  .site-footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.site-footer__word {
  font-size: var(--step-6);
  line-height: 0.78;
  letter-spacing: -0.04em;
  font-weight: var(--weight-display);
  margin-top: var(--space-2xl);
  color: var(--fg);
  opacity: 0.06;
  white-space: nowrap;
}
.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}