/* =========================================================
   ABOUT PAGE — Editorial redesign
   Four distinct sections: Hero · Principles · Pullquote · Creator
   ========================================================= */

body.page-about {
  overflow-x: clip;
  overflow-y: auto;
  height: auto;
  background: var(--bg);
}

/* ── Shared eyebrow ── */
.ab-eyebrow {
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  display: block;
}

/* ── Tag chips ── */
.ab-tag {
  font-family: var(--sans);
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: oklch(94% 0.005 88 / 0.38);
}
.ab-tag-sep {
  margin: 0 0.6rem;
  color: oklch(94% 0.005 88 / 0.18);
}

/* =========================================================
   HERO
   Always dark. Title in two styles: roman + italic.
   ========================================================= */
.ab-hero {
  background: oklch(10.5% 0.009 80);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding:
    calc(var(--nav-h) + 5vh)
    clamp(2rem, 8vw, 10rem)
    clamp(3rem, 6vh, 5rem);
  box-sizing: border-box;
  position: relative;
  overflow: hidden;
}

/* Grain texture overlay */
.ab-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  opacity: 0.6;
}

/* Accent glow top-right */
.ab-hero::after {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, oklch(94% 0.005 88 / 0.04) 0%, transparent 65%);
  top: -100px;
  right: -200px;
  pointer-events: none;
}

.ab-hero-inner {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: clamp(2rem, 6vh, 5rem);
}

.ab-hero-meta {
  margin-bottom: clamp(2.5rem, 5vh, 4.5rem);
  opacity: 0;
  transform: translateY(12px);
}

.ab-hero-title {
  font-family: var(--serif);
  font-size: clamp(3.6rem, 9vw, 9rem);
  font-weight: 400;
  line-height: 0.93;
  letter-spacing: -0.04em;
  color: oklch(94% 0.005 88);
  margin: 0 0 2.5rem;
  display: flex;
  flex-direction: column;
}

.ab-line {
  display: block;
  overflow: hidden;
}

.ab-line span {
  display: block;
  transform: translateY(110%);
  opacity: 0;
}

.ab-hero-title em {
  font-style: italic;
  color: oklch(94% 0.005 88);
}

.ab-hero-sub {
  font-family: var(--sans);
  font-size: 0.9rem;
  line-height: 1.8;
  color: oklch(94% 0.005 88 / 0.4);
  max-width: 380px;
  margin: 0;
  opacity: 0;
  transform: translateY(14px);
  letter-spacing: 0.01em;
}

/* Scroll hint */
.ab-hero-scroll-hint {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: oklch(94% 0.005 88 / 0.22);
  opacity: 0;
}

.ab-scroll-dot {
  animation: ab-scroll-bounce 1.8s ease-in-out infinite;
  transform-origin: center;
}

@keyframes ab-scroll-bounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  60%       { transform: translateY(7px); opacity: 0.3; }
}

/* =========================================================
   PRINCIPLES
   Off-white background. Three numbered columns.
   ========================================================= */
.ab-principles {
  background: var(--bg);
  padding: clamp(5rem, 10vw, 9rem) clamp(2rem, 8vw, 10rem);
  border-bottom: 1px solid var(--border);
}

.ab-principles-header {
  margin-bottom: clamp(3.5rem, 6vw, 5.5rem);
  opacity: 0;
  transform: translateY(20px);
}

.ab-principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(2rem, 4vw, 4rem);
}

.ab-principle {
  opacity: 0;
  transform: translateY(28px);
}

.ab-principle-num {
  font-family: var(--serif);
  font-size: 0.75rem;
  font-style: italic;
  color: var(--accent);
  display: block;
  margin-bottom: 1.4rem;
  letter-spacing: 0.05em;
}

.ab-principle-title {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--fg);
  margin: 0 0 1.5rem;
}

.ab-principle-body {
  font-family: var(--sans);
  font-size: 0.85rem;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
  max-width: 300px;
}

/* Separator line between principles */
.ab-principle + .ab-principle {
  border-left: 1px solid var(--border);
  padding-left: clamp(2rem, 4vw, 4rem);
}

/* =========================================================
   PULL QUOTE — full-bleed dark typographic moment
   ========================================================= */
.ab-pullquote {
  background: oklch(10.5% 0.009 80);
  padding: clamp(6rem, 13vw, 12rem) clamp(2rem, 8vw, 10rem);
  position: relative;
  overflow: hidden;
}

.ab-pullquote::before {
  content: '\201C';
  position: absolute;
  font-family: var(--serif);
  font-size: clamp(16rem, 28vw, 28rem);
  font-weight: 400;
  line-height: 1;
  color: oklch(94% 0.005 88 / 0.03);
  top: -2rem;
  left: clamp(1rem, 5vw, 6rem);
  pointer-events: none;
  user-select: none;
}

.ab-pullquote-inner {
  opacity: 0;
  transform: translateY(30px);
  position: relative;
  z-index: 1;
}

.ab-bq {
  margin: 0;
  max-width: 900px;
}

.ab-bq p {
  font-family: var(--serif);
  font-size: clamp(2rem, 4.2vw, 4rem);
  font-style: italic;
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: oklch(94% 0.005 88);
  margin: 0;
}

/* =========================================================
   CREATOR — asymmetric layout with ruled lines
   ========================================================= */
.ab-creator {
  background: var(--bg);
  padding: clamp(5rem, 10vw, 9rem) clamp(2rem, 8vw, 10rem) clamp(3rem, 5vw, 5rem);
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: clamp(3rem, 5vw, 5rem);
}

.ab-creator-label {
  opacity: 0;
  transform: translateY(16px);
}

.ab-creator-body {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(3rem, 7vw, 8rem);
  align-items: start;
}

.ab-creator-name-block {
  opacity: 0;
  transform: translateY(24px);
}

.ab-creator-name {
  font-family: var(--serif);
  font-size: clamp(2.8rem, 4.5vw, 5rem);
  font-weight: 400;
  line-height: 0.96;
  letter-spacing: -0.04em;
  color: var(--fg);
  margin: 0 0 1.25rem;
  white-space: nowrap;
}

.ab-creator-url {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: opacity 0.2s;
  display: block;
}

.ab-creator-url:hover {
  opacity: 0.7;
}

.ab-creator-content {
  opacity: 0;
  transform: translateY(24px);
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

.ab-creator-intro {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
  font-style: italic;
  line-height: 1.45;
  letter-spacing: -0.015em;
  color: var(--fg);
  margin: 0 0 2rem;
  max-width: 560px;
}

.ab-creator-detail {
  font-family: var(--sans);
  font-size: 0.87rem;
  line-height: 1.9;
  color: var(--muted);
  margin: 0 0 1.25rem;
  max-width: 560px;
}

.ab-creator-detail:last-of-type {
  margin-bottom: 2.5rem;
}

.ab-creator-detail em {
  color: var(--fg);
  font-style: italic;
}

.ab-creator-cta {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Footer bar */
.ab-creator-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  margin-top: 1rem;
}

.ab-creator-copy {
  font-family: var(--sans);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.ab-foot-nav {
  display: flex;
  gap: 1.5rem;
}

.ab-foot-nav a {
  font-family: var(--sans);
  font-size: 0.68rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.ab-foot-nav a:hover {
  color: var(--fg);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 900px) {
  .ab-principles-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .ab-principle + .ab-principle {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid var(--border);
    padding-top: 3rem;
  }
  .ab-creator-body {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .ab-creator-name {
    white-space: normal;
  }
  .ab-creator-content {
    border-top: none;
    padding-top: 0;
  }
}

@media (max-width: 640px) {
  .ab-hero {
    padding: calc(var(--nav-h) + 3rem) 1.5rem 2.5rem;
  }
  .ab-principles {
    padding: 4rem 1.5rem;
  }
  .ab-pullquote {
    padding: 5rem 1.5rem;
  }
  .ab-creator {
    padding: 4rem 1.5rem 3rem;
  }
  .ab-creator-foot {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .ab-bq p {
    font-size: 1.75rem;
  }
}