/* ==========================================================================
   Our Story — page-specific design
   Scoped under .os- namespace so it never leaks into the rest of the theme.
   Uses the theme's existing tokens (--clr-*, --font-*, --space-*) so it
   inherits light/dark mode automatically — no separate dark styles needed.
   ========================================================================== */

.os {
  --os-rule: var(--clr-border-light);
  overflow-x: clip;
}

/* ---------- Hero : oversized editorial masthead ---------- */
.os-hero {
  position: relative;
  padding: clamp(4rem, 10vw, 8rem) 0 clamp(3rem, 6vw, 5rem);
  border-bottom: 1px solid var(--os-rule);
}

.os-hero__kicker {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--clr-text-faint);
  margin-bottom: var(--space-6);
}

.os-hero__kicker::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--clr-primary);
}

.os-hero__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: end;
}

@media (min-width: 900px) {
  .os-hero__row { grid-template-columns: 1.4fr 0.6fr; }
}

.os-hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--clr-white);
  margin: 0;
}

.os-hero__title em {
  font-style: italic;
  color: var(--clr-primary);
}

.os-hero__lede {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  line-height: 1.6;
  color: var(--clr-text-muted);
  max-width: 36ch;
  margin: 0;
}

/* thin rotated tag, the kind of off-grid detail a human designer adds */
.os-hero__tag {
  position: absolute;
  top: clamp(3.5rem, 9vw, 7rem);
  right: var(--space-6);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--clr-text-faint);
  writing-mode: vertical-rl;
  letter-spacing: 0.1em;
  display: none;
}

@media (min-width: 1100px) { .os-hero__tag { display: block; } }

/* ---------- Manifesto : huge pull-statement, not a card grid ---------- */
.os-manifesto {
  padding: clamp(4rem, 9vw, 7rem) 0;
  border-bottom: 1px solid var(--os-rule);
}

.os-manifesto__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

@media (min-width: 900px) {
  .os-manifesto__grid { grid-template-columns: 220px 1fr; gap: var(--space-16); }
}

.os-manifesto__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-primary);
}

.os-manifesto__text {
  font-family: var(--font-display);
  font-weight: 500;
  font-style: italic;
  font-size: clamp(1.5rem, 3.4vw, 2.6rem);
  line-height: 1.25;
  color: var(--clr-white);
  margin: 0 0 var(--space-8);
}

.os-manifesto__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  max-width: 760px;
}

@media (min-width: 700px) {
  .os-manifesto__body { grid-template-columns: 1fr 1fr; }
}

.os-manifesto__body p {
  font-size: 0.98rem;
  line-height: 1.75;
  color: var(--clr-text-muted);
  margin: 0;
}

/* ---------- Timeline : horizontal, scroll-snapping, hand-laid-out ---------- */
.os-timeline {
  padding: clamp(4rem, 9vw, 7rem) 0;
  border-bottom: 1px solid var(--os-rule);
}

.os-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
  flex-wrap: wrap;
}

.os-section-head h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  color: var(--clr-white);
  margin: 0;
}

.os-section-head span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--clr-text-faint);
  letter-spacing: 0.08em;
}

.os-timeline__track {
  display: flex;
  gap: var(--space-6);
  overflow-x: auto;
  padding-bottom: var(--space-4);
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--clr-border-light) transparent;
}

.os-timeline__track::-webkit-scrollbar { height: 6px; }
.os-timeline__track::-webkit-scrollbar-thumb { background: var(--clr-border-light); border-radius: 99px; }

.os-tl-item {
  scroll-snap-align: start;
  flex: 0 0 auto;
  width: clamp(220px, 30vw, 280px);
  padding-top: var(--space-6);
  border-top: 2px solid var(--clr-border-light);
  transition: border-color .25s var(--ease-out, ease);
}

.os-tl-item:hover,
.os-tl-item:focus-within { border-top-color: var(--clr-primary); }

.os-tl-item__year {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--clr-primary);
  margin-bottom: var(--space-3);
  display: block;
}

.os-tl-item__title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--clr-white);
  margin: 0 0 var(--space-2);
}

.os-tl-item__desc {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--clr-text-muted);
  margin: 0;
}

/* ---------- Numbers strip : huge type, no boxes/icons ---------- */
.os-numbers {
  padding: clamp(3rem, 7vw, 5rem) 0;
  border-bottom: 1px solid var(--os-rule);
}

.os-numbers__row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8) var(--space-6);
}

@media (min-width: 800px) {
  .os-numbers__row { grid-template-columns: repeat(4, 1fr); }
}

.os-num {
  border-left: 1px solid var(--os-rule);
  padding-left: var(--space-5);
}

.os-num__val {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  color: var(--clr-white);
  line-height: 1;
  display: block;
  margin-bottom: var(--space-2);
}

.os-num__val .accent { color: var(--clr-primary); }

.os-num__label {
  font-size: 0.82rem;
  color: var(--clr-text-faint);
  letter-spacing: 0.02em;
}

/* ---------- Values : asymmetric bento, not a 4-col icon grid ---------- */
.os-values {
  padding: clamp(4rem, 9vw, 7rem) 0;
  border-bottom: 1px solid var(--os-rule);
}

.os-bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 760px) {
  .os-bento {
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: minmax(190px, auto);
  }
  .os-bento .os-card:nth-child(1) { grid-column: span 4; }
  .os-bento .os-card:nth-child(2) { grid-column: span 2; }
  .os-bento .os-card:nth-child(3) { grid-column: span 2; }
  .os-bento .os-card:nth-child(4) { grid-column: span 4; }
}

.os-card {
  position: relative;
  border: 1px solid var(--os-rule);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  background: var(--clr-bg-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-6);
  overflow: hidden;
  transition: transform .35s var(--ease-out, ease), border-color .35s ease;
}

.os-card:hover { transform: translateY(-4px); border-color: var(--clr-primary); }

.os-card__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--clr-text-faint);
}

.os-card__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--clr-white);
  margin: 0;
}

.os-card__desc {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--clr-text-muted);
  margin: 0;
}

/* ---------- Closing CTA : full-bleed, restrained ---------- */
.os-cta {
  padding: clamp(5rem, 11vw, 8rem) 0;
  text-align: center;
}

.os-cta__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 5vw, 3.4rem);
  color: var(--clr-white);
  margin: 0 0 var(--space-4);
  letter-spacing: -0.01em;
}

.os-cta__sub {
  color: var(--clr-text-muted);
  max-width: 420px;
  margin: 0 auto var(--space-8);
  font-size: 1rem;
}

.os-cta__actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Scroll reveal ---------- */
.os-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s var(--ease-out, ease), transform .6s var(--ease-out, ease);
}
.os-reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .os-reveal { opacity: 1; transform: none; transition: none; }
  .os-card:hover { transform: none; }
}