/* ============================================
   OUR STORY — Minimal Editorial Redesign
   Approach: Exaggerated whitespace · Single accent hits ·
             Oversized type · Storytelling flow
   ============================================ */

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ══════════════════════════
   PAGE HERO — full-bleed photo
══════════════════════════ */
.os-hero {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: clamp(4rem, 8vw, 7rem);
  padding-top: clamp(8rem, 14vw, 12rem);
  padding-inline: var(--space-6);
  background-image: url("../assets/imgi_22_our-history-hero.jpg");
  background-size: cover;
  background-position: center 30%;
  position: relative;
  overflow: hidden;
}

/* Dark gradient overlay — keeps headline crisp */
.os-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to bottom,
      rgba(6, 18, 38, 0.50) 0%,
      rgba(6, 18, 38, 0.25) 45%,
      rgba(6, 18, 38, 0.70) 100%
    );
  z-index: 0;
}

.os-hero-inner {
  max-width: 860px;
  width: 100%;
  text-align: center;
  position: relative;
  z-index: 1;
}

.os-hero-year {
  display: inline-block;
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.os-hero-year::before,
.os-hero-year::after {
  content: "";
  width: 24px;
  height: 1px;
  background: rgba(255, 255, 255, 0.40);
  flex-shrink: 0;
}

.os-hero-year.visible { opacity: 1; transform: translateY(0); }

.os-hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 8rem);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: clamp(2rem, 4vw, 3rem);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s 0.1s ease, transform 0.7s 0.1s ease;
}

.os-hero-title.visible { opacity: 1; transform: translateY(0); }

.os-hero-title em {
  font-style: normal;
  color: #7dd3fc;
}

.os-hero-lead {
  font-family: var(--font-body);
  font-size: clamp(1.1rem, 2vw, 1.375rem);
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.7;
  max-width: 580px;
  margin-inline: auto;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s 0.2s ease, transform 0.7s 0.2s ease;
}

.os-hero-lead.visible { opacity: 1; transform: translateY(0); }

/* ══════════════════════════
   DIVIDER RULE
══════════════════════════ */
.os-rule {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.os-rule hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* ══════════════════════════
   LEAD STATEMENT
══════════════════════════ */
.os-statement {
  padding-block: clamp(4rem, 8vw, 8rem);
  background: var(--white);
}

.os-statement-inner {
  max-width: 800px;
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.os-statement-quote {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-dark);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.os-statement-quote.visible { opacity: 1; transform: translateY(0); }

.os-statement-quote strong {
  color: var(--red);
  font-weight: 700;
}

/* ══════════════════════════
   FACTS ROW — Horizontal
══════════════════════════ */
.os-facts {
  padding-block: clamp(4rem, 7vw, 7rem);
  background: var(--cream);
}

.os-facts-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.os-fact {
  background: var(--white);
  padding: clamp(2rem, 4vw, 3.5rem) clamp(1.5rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: background var(--t);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease, background 220ms ease;
}

.os-fact.visible { opacity: 1; transform: translateY(0); }
.os-fact:nth-child(2) { transition-delay: 0.07s; }
.os-fact:nth-child(3) { transition-delay: 0.14s; }
.os-fact:nth-child(4) { transition-delay: 0.21s; }

.os-fact-number {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--blue);
  display: flex;
  align-items: baseline;
  gap: 3px;
}

.os-fact-number sup {
  font-size: 0.45em;
  color: var(--red);
  font-family: var(--font-body);
  font-weight: 800;
}

.os-fact-label {
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray);
}

/* ══════════════════════════
   BODY SECTIONS
══════════════════════════ */
.os-body {
  padding-block: clamp(4rem, 8vw, 8rem);
  background: var(--white);
}

.os-body-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* Section intro header */
.os-section-kicker {
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--red);
  display: block;
  margin-bottom: var(--space-4);
}

.os-section-heading {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.1;
  margin-bottom: clamp(3rem, 6vw, 5rem);
  letter-spacing: -0.02em;
}

.os-section-heading span { color: var(--blue); }

/* ── Corporation grid ── */
.os-corp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.os-body-text {
  font-size: var(--text-base);
  color: var(--gray);
  line-height: 1.8;
  margin-bottom: var(--space-6);
}

.os-body-text:last-child {
  margin-bottom: 0;
}

.os-body-text strong {
  color: var(--text-dark);
  font-weight: 700;
}

/* Philosophy intro paragraph */
.os-body-intro {
  font-size: var(--text-base);
  color: var(--gray);
  line-height: 1.75;
  max-width: 580px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

/* Stagger delay helpers */
.os-reveal--delay {
  transition-delay: 0.12s;
}

/* ── Philosophy list ── */
.os-phil-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
}

.os-phil-item {
  padding: clamp(1.75rem, 3.5vw, 2.75rem) 0;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1.5rem 1fr;
  gap: var(--space-5);
  align-items: start;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.os-phil-item.visible { opacity: 1; transform: translateY(0); }

/* Stagger */
.os-phil-item:nth-child(2) { transition-delay: 0.05s; }
.os-phil-item:nth-child(3) { transition-delay: 0.10s; }
.os-phil-item:nth-child(4) { transition-delay: 0.15s; }
.os-phil-item:nth-child(5) { transition-delay: 0.20s; }
.os-phil-item:nth-child(6) { transition-delay: 0.25s; }

/* Give left column item room to breathe on odd/even */
.os-phil-item:nth-child(odd) {
  padding-right: clamp(1.5rem, 4vw, 4rem);
}
.os-phil-item:nth-child(even) {
  padding-left: clamp(1.5rem, 4vw, 4rem);
  border-left: 1px solid var(--border);
}

.os-phil-num {
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--red);
  padding-top: 4px;
  letter-spacing: 0.05em;
}

.os-phil-content {}

.os-phil-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: var(--space-2);
  line-height: 1.2;
}

.os-phil-text {
  font-size: var(--text-sm);
  color: var(--gray);
  line-height: 1.75;
}

/* ── Values ── */
.os-values-bg {
  background: var(--cream);
  padding-block: clamp(4rem, 8vw, 8rem);
}

.os-values-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.os-values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

/* Centre the lone 7th item in a 3-column grid */
.os-value:last-child:nth-child(3n + 1) {
  grid-column: 2;
}

.os-value {
  background: var(--white);
  padding: clamp(1.75rem, 3vw, 2.5rem) clamp(1.25rem, 2.5vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  cursor: default;
  transition: background var(--t);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.45s ease, transform 0.45s ease, background 220ms ease;
}

.os-value.visible { opacity: 1; transform: translateY(0); }
.os-value:nth-child(2) { transition-delay: 0.05s; }
.os-value:nth-child(3) { transition-delay: 0.10s; }
.os-value:nth-child(4) { transition-delay: 0.15s; }
.os-value:nth-child(5) { transition-delay: 0.20s; }
.os-value:nth-child(6) { transition-delay: 0.25s; }
.os-value:nth-child(7) { transition-delay: 0.30s; }

.os-value:hover { background: var(--blue-light); }

.os-value-icon {
  width: 36px;
  height: 36px;
  color: var(--blue);
  flex-shrink: 0;
}

.os-value-name {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.2;
}

.os-value-desc {
  font-size: var(--text-sm);
  color: var(--gray);
  line-height: 1.6;
}

/* ══════════════════════════
   CTA — stripped back
══════════════════════════ */
.os-cta {
  padding-block: clamp(4rem, 8vw, 8rem);
  background: var(--white);
  border-top: 1px solid var(--border);
}

.os-cta-inner {
  max-width: 640px;
  margin-inline: auto;
  padding-inline: var(--space-6);
  text-align: center;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.os-cta-inner.visible { opacity: 1; transform: translateY(0); }

.os-cta-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.5vw, 2.625rem);
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.15;
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}

.os-cta-sub {
  font-size: var(--text-base);
  color: var(--gray);
  line-height: 1.65;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

/* Single CTA button — full-width on mobile */
.os-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  background: var(--red);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 800;
  font-size: var(--text-sm);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: var(--space-4) var(--space-10);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--t), transform 220ms ease, box-shadow 220ms ease;
  box-shadow: 0 4px 16px rgba(239, 67, 55, 0.28);
}

.os-btn:hover {
  background: var(--red-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-red);
}

.os-btn:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}

/* ══════════════════════════
   REVEAL util
══════════════════════════ */
.os-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

.os-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ══════════════════════════
   RESPONSIVE
══════════════════════════ */
@media (max-width: 1024px) {
  .os-facts-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .os-corp-grid {
    grid-template-columns: 1fr;
  }

  .os-phil-list {
    grid-template-columns: 1fr;
  }

  .os-phil-item:nth-child(even) {
    border-left: none;
    padding-left: 0;
  }

  .os-phil-item:nth-child(odd) {
    padding-right: 0;
  }

  .os-values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .os-facts-inner {
    grid-template-columns: repeat(2, 1fr);
  }

  .os-values-grid {
    grid-template-columns: 1fr 1fr;
  }

  .os-btn {
    width: 100%;
    padding-inline: var(--space-6);
  }
}