/* About — image-led editorial story with restrained, purposeful motion. */
#main[data-page="about"] { --about-rule: color-mix(in oklch, var(--dr-gold) 32%, var(--dr-line)); }

#main[data-page="about"] .dr-about-hero {
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(480px, 1.12fr);
  gap: clamp(46px, 6vw, 92px);
  align-items: center;
  min-height: min(850px, calc(100svh - 68px));
  padding-block: clamp(72px, 8vw, 112px) !important;
  overflow: hidden;
  background:
    radial-gradient(circle at 84% 38%, color-mix(in oklch, var(--dr-cyan) 8%, transparent), transparent 34%),
    var(--dr-ink-1000);
}

.dr-about-hero-copy {
  position: relative;
  z-index: 2;
  max-width: 690px;
  animation: drAboutCopyIn .8s var(--ease-out) both;
}

.dr-about-hero-copy > span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--dr-cyan-strong) !important;
}

.dr-about-hero-copy > span::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--dr-cyan);
}

#main[data-page="about"] .dr-about-hero h1 {
  width: min(100%, 14ch);
  max-width: none !important;
  margin-top: 22px !important;
  font-size: clamp(1.9rem, 5.35vw, 4.75rem) !important;
  line-height: 1.12 !important;
  letter-spacing: -.035em !important;
  text-wrap: balance;
}

html[lang="th"] #main[data-page="about"] .dr-about-hero h1 {
  width: min(100%, 12ch);
  padding-block: .08em .13em;
  font-family: 'Anuphan', 'IBM Plex Sans Thai', sans-serif !important;
  line-height: 1.3 !important;
  letter-spacing: -.025em !important;
}

#main[data-page="about"] .dr-about-hero-copy > p {
  max-width: 54ch !important;
  margin-top: 24px !important;
  color: var(--dr-copy) !important;
  font-size: 1.125rem !important;
  line-height: 1.78 !important;
}

.dr-about-hero-visual {
  position: relative;
  min-height: 610px;
  margin: 0;
  overflow: hidden;
  background: var(--dr-ink-900);
  animation: drAboutVisualIn 1s .08s var(--ease-out) both;
}

.dr-about-hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(0deg, rgba(7,9,11,.92), transparent 46%);
}

.dr-about-hero-visual::after {
  content: "";
  position: absolute;
  z-index: 2;
  top: 0;
  bottom: 0;
  left: 23%;
  width: 1px;
  opacity: .54;
  background: linear-gradient(transparent, var(--dr-cyan), transparent);
  animation: drAboutScan 5.5s 1.2s ease-in-out infinite;
}

.dr-about-hero-visual picture,
.dr-about-hero-visual > img {
  display: block;
  width: 100%;
  height: 100%;
}

.dr-about-hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 610px;
  object-fit: cover;
  object-position: 56% center;
  filter: saturate(.72) contrast(1.08);
  transform: scale(1.025);
  transition: transform .8s var(--ease-out), filter .35s ease;
  animation: drAboutImageSettle 1.4s var(--ease-out) both;
}

.dr-about-hero-visual figcaption {
  position: absolute;
  z-index: 3;
  right: clamp(22px, 3vw, 38px);
  bottom: clamp(24px, 4vw, 44px);
  left: clamp(22px, 3vw, 38px);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid color-mix(in oklch, var(--dr-white) 32%, transparent);
  padding-top: 16px;
}

.dr-about-hero-visual figcaption span {
  color: var(--dr-copy);
  font: 700 .75rem/1.4 var(--font-display);
  letter-spacing: .08em;
}

.dr-about-hero-visual figcaption b {
  color: var(--dr-white);
  font: 700 clamp(1rem, 1.5vw, 1.25rem)/1.2 var(--font-display);
  letter-spacing: .04em;
}

.dr-about-hero-visual figcaption i { color: var(--dr-gold-strong); font-style: normal; }

.dr-about-hero-signal {
  position: absolute;
  z-index: 3;
  top: 28px;
  right: 28px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--dr-white);
  font: 700 .75rem/1 var(--font-display);
  letter-spacing: .06em;
}

.dr-about-hero-signal i {
  width: 22px;
  height: 1px;
  background: var(--dr-cyan);
  transform-origin: left;
  animation: drAboutSignal 2.8s var(--ease-out) infinite;
}

.dr-about-hero-signal i:nth-of-type(2) { animation-delay: .35s; }
.dr-about-hero-signal i:nth-of-type(3) { animation-delay: .7s; background: var(--dr-gold); }

.dr-about-vision {
  position: relative;
  padding: clamp(82px, 10vw, 140px) var(--gx) !important;
  overflow: hidden;
  background: var(--dr-ink-950);
  border-block: 1px solid var(--dr-line);
}

.dr-about-vision-layout {
  display: grid !important;
  grid-template-columns: minmax(160px, .42fr) minmax(0, 1.58fr) !important;
  gap: clamp(36px, 7vw, 110px) !important;
  align-items: start !important;
  padding: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
}

.dr-about-vision-layout > div:first-child {
  display: contents;
}

.dr-about-vision-layout > div:first-child > div {
  padding-top: .7rem;
  color: var(--dr-gold-strong) !important;
  font-size: .75rem !important;
  letter-spacing: .1em !important;
}

.dr-about-vision-layout > div:first-child > p {
  max-width: 920px;
  margin: 0 !important;
  color: var(--dr-white) !important;
  font: 600 clamp(2.15rem, 4.4vw, 4rem)/1.3 var(--font-display) !important;
  letter-spacing: -.03em;
  text-wrap: balance;
}

.dr-about-vision-layout > div:last-child { display: none; }

.dr-about-vision[data-shown] .dr-about-vision-layout > div:first-child > p {
  animation: drAboutStatementIn .75s .08s var(--ease-out) both;
}

.dr-about-why {
  padding: clamp(80px, 9vw, 124px) var(--gx) !important;
  background: var(--dr-ink-1000) !important;
  border-block: 0 !important;
}

.dr-about-why > h2 {
  max-width: 640px;
  margin: 0 0 clamp(46px, 6vw, 76px) !important;
  color: var(--dr-white);
  font: 700 clamp(2.25rem, 4.5vw, 3.75rem)/1.15 var(--font-display) !important;
  letter-spacing: -.035em !important;
}

.dr-about-beliefs {
  display: grid !important;
  grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
  gap: 0 !important;
  border-block: 1px solid var(--about-rule);
}

.dr-about-belief {
  position: relative;
  min-width: 0;
  padding: clamp(30px, 4vw, 50px) clamp(24px, 4vw, 54px) clamp(34px, 5vw, 62px) 0;
}

.dr-about-belief + .dr-about-belief {
  border-left: 1px solid var(--about-rule);
  padding-left: clamp(24px, 4vw, 54px);
}

.dr-about-belief i {
  display: block;
  width: 9px;
  height: 9px;
  margin-bottom: clamp(36px, 5vw, 64px);
  border-radius: 50%;
  background: var(--dr-cyan);
  box-shadow: 0 0 0 5px color-mix(in oklch, var(--dr-cyan) 12%, transparent);
  transition: transform .25s var(--ease-out);
}

.dr-about-belief:nth-child(2) i {
  background: var(--dr-gold);
  box-shadow: 0 0 0 5px color-mix(in oklch, var(--dr-gold) 12%, transparent);
}

.dr-about-belief:nth-child(3) i {
  background: var(--dr-violet-strong);
  box-shadow: 0 0 0 5px color-mix(in oklch, var(--dr-violet) 12%, transparent);
}

.dr-about-belief h3 {
  margin: 0;
  color: var(--dr-white);
  font: 700 clamp(1.35rem, 2.2vw, 1.75rem)/1.35 var(--font-display);
}

.dr-about-belief p {
  max-width: 34ch;
  margin: 14px 0 0;
  color: var(--dr-copy);
  font-size: 1rem;
  line-height: 1.75;
}

.dr-about-why[data-shown] .dr-about-belief {
  animation: drAboutBeliefIn .65s var(--belief-delay) var(--ease-out) both;
}

.dr-experts-section {
  position: relative;
  padding-block: clamp(90px, 10vw, 136px);
  background: var(--dr-ink-950);
}

.dr-experts-media {
  position: relative;
  height: clamp(420px, 58vw, 700px);
  margin-bottom: 22px;
}

.dr-experts-media::after,
.dr-how-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(0deg, rgba(6,7,9,.48), transparent 55%);
}

.dr-experts-section[data-shown] .dr-experts-media,
.dr-how-section[data-shown] .dr-how-media {
  animation: drAboutMediaReveal .9s var(--ease-out) both;
}

.dr-experts-intro > span,
.dr-principles-head span { letter-spacing: .1em; }

.dr-experts-intro h2 {
  max-width: 14ch;
  font-size: clamp(1.9rem, 4.5vw, 2.9rem);
  line-height: 1.16;
}

.dr-expert-row { min-height: 72px; border-color: var(--dr-line); }
.dr-expert-row span { transition: color .25s ease, transform .25s var(--ease-out); }
.dr-expert-row:hover span { color: var(--dr-cyan-strong); transform: translateX(5px); }

.dr-how-section {
  padding-block: clamp(86px, 10vw, 132px);
  background: var(--dr-ink-900);
}

.dr-how-section > h2 {
  max-width: 760px;
  margin-bottom: clamp(40px, 6vw, 68px) !important;
  font-size: clamp(1.9rem, 4.5vw, 2.9rem) !important;
}

.dr-how-layout { gap: clamp(34px, 6vw, 80px); }
.dr-how-media { position: relative; min-height: 590px; }

.dr-how-steps {
  position: relative;
  gap: 0;
  border-top: 1px solid var(--about-rule);
}

.dr-about-step {
  position: relative;
  min-width: 0;
  padding: 32px clamp(20px, 3vw, 38px) 38px 0;
  border-bottom: 1px solid var(--about-rule);
}

.dr-about-step:nth-child(even) {
  padding-left: clamp(20px, 3vw, 38px);
  border-left: 1px solid var(--about-rule);
}

.dr-about-step > div {
  color: color-mix(in oklch, var(--dr-gold) 44%, transparent) !important;
  transition: color .25s ease;
}

.dr-about-step:hover > div { color: var(--dr-gold-strong) !important; }

.dr-how-section[data-shown] .dr-about-step {
  animation: drAboutStepIn .6s var(--step-delay) var(--ease-out) both;
}

.dr-principles-section {
  position: relative;
  background:
    radial-gradient(circle at 82% 24%, color-mix(in oklch, var(--dr-gold) 8%, transparent), transparent 30%),
    var(--dr-ink-950) !important;
}

.dr-principles-head h2 { font-size: clamp(1.9rem, 4.5vw, 2.9rem); }

@media (hover: hover) and (pointer: fine) {
  .dr-about-belief:hover i { transform: scale(1.25); }
  .dr-about-hero-visual:hover img { transform: scale(1.045); filter: saturate(.9) contrast(1.05); }
}

@keyframes drAboutCopyIn {
  from { opacity: 0; transform: translateY(22px); filter: blur(7px); }
  to { opacity: 1; transform: none; filter: none; }
}

@keyframes drAboutVisualIn {
  from { opacity: .35; clip-path: inset(0 0 100% 0); }
  to { opacity: 1; clip-path: inset(0); }
}

@keyframes drAboutImageSettle {
  from { transform: scale(1.1); filter: saturate(.35) contrast(1.08); }
  to { transform: scale(1.025); filter: saturate(.72) contrast(1.08); }
}

@keyframes drAboutScan {
  0%, 100% { left: 18%; opacity: .18; }
  48% { left: 82%; opacity: .68; }
}

@keyframes drAboutSignal {
  0%, 100% { opacity: .35; transform: scaleX(.3); }
  42% { opacity: 1; transform: scaleX(1); }
}

@keyframes drAboutStatementIn {
  from { opacity: .55; transform: translateY(22px); filter: blur(6px); }
  to { opacity: 1; transform: none; filter: none; }
}

@keyframes drAboutBeliefIn {
  from { opacity: .55; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

@keyframes drAboutStepIn {
  from { opacity: .55; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

@keyframes drAboutMediaReveal {
  from { opacity: .65; clip-path: inset(0 0 14% 0); }
  to { opacity: 1; clip-path: inset(0); }
}

@media (max-width: 1023px) {
  #main[data-page="about"] .dr-about-hero {
    grid-template-columns: minmax(0, .92fr) minmax(360px, 1.08fr);
    gap: 40px;
  }
  .dr-about-hero-visual,
  .dr-about-hero-visual img { min-height: 540px; }
  .dr-about-hero-signal { display: none; }
}

@media (max-width: 767px) {
  #main[data-page="about"] .dr-about-hero {
    display: flex;
    min-height: auto;
    flex-direction: column;
    gap: 34px;
    padding-top: 54px !important;
    padding-bottom: 0 !important;
  }
  #main[data-page="about"] .dr-about-hero-copy { width: 100%; }
  #main[data-page="about"] .dr-about-hero h1,
  html[lang="th"] #main[data-page="about"] .dr-about-hero h1 {
    width: min(100%, 14ch);
    font-size: clamp(1.9rem, 11.3vw, 2.9rem) !important;
  }
  #main[data-page="about"] .dr-about-hero-copy > p { font-size: 1rem !important; }
  .dr-about-hero-visual {
    width: calc(100% + (var(--gx) * 2));
    min-height: 470px;
    margin-inline: calc(var(--gx) * -1);
  }
  .dr-about-hero-visual img { min-height: 470px; object-position: 58% center; }
  .dr-about-hero-visual figcaption {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
  .dr-about-vision { padding-block: 72px !important; }
  .dr-about-vision-layout {
    display: block !important;
  }
  .dr-about-vision-layout > div:first-child > div {
    display: block;
    margin-bottom: 30px;
  }
  .dr-about-vision-layout > div:first-child > p {
    font-size: clamp(1.9rem, 8.7vw, 2.9rem) !important;
  }
  .dr-about-beliefs { grid-template-columns: 1fr !important; }
  .dr-about-belief,
  .dr-about-belief + .dr-about-belief {
    padding: 32px 0 38px;
    border-left: 0;
  }
  .dr-about-belief + .dr-about-belief { border-top: 1px solid var(--about-rule); }
  .dr-about-belief i { margin-bottom: 28px; }
  .dr-experts-media { height: 360px; }
  .dr-experts-intro h2 { max-width: 100%; }
  .dr-how-media { min-height: 380px; }
  .dr-how-steps { grid-template-columns: 1fr; }
  .dr-about-step,
  .dr-about-step:nth-child(even) {
    padding: 26px 0 30px;
    border-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dr-about-hero-copy,
  .dr-about-hero-visual,
  .dr-about-hero-visual img,
  .dr-about-hero-visual::after,
  .dr-about-hero-signal i,
  .dr-about-vision[data-shown] .dr-about-vision-layout > div:first-child > p,
  .dr-about-why[data-shown] .dr-about-belief,
  .dr-experts-section[data-shown] .dr-experts-media,
  .dr-how-section[data-shown] .dr-how-media,
  .dr-how-section[data-shown] .dr-about-step {
    animation: none !important;
  }
}