:root {
  --ink: #12262f;
  --muted: #52656d;
  --deep: #004362;
  --deep-2: #002f45;
  --accent: #ef6236;
  --accent-dark: #ce4822;
  --paper: #f8f5ef;
  --soft-blue: #edf5f6;
  --line: #d8dfdf;
  --white: #fff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.tai-national-page {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.5;
}
.tai-national-page a { color: inherit; }
.tai-national-page h1,
.tai-national-page h2,
.tai-national-page h3,
.tai-national-page h4,
.tai-national-page p { margin-top: 0; }
.tai-national-page h1,
.tai-national-page h2 { font-family: Georgia, "Times New Roman", serif; font-weight: 500; }
.tai-national-page a:focus-visible { outline: 3px solid rgba(239,98,54,.55); outline-offset: 4px; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 1000; padding: 10px 14px; color: var(--white)!important; background: var(--deep-2); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.site-header {
  min-height: 92px;
  padding: 14px clamp(22px,5vw,76px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 14px; color: var(--deep-2); text-decoration: none; }
.brand-mark { position: relative; min-width: 67px; font-family: Georgia,serif; font-size: 1.52rem; letter-spacing: -.06em; line-height: 1; }
.brand-mark::after { content: ""; position: absolute; top: -8px; right: 0; width: 1px; height: 40px; background: #89a3ad; }
.brand-mark span { position: absolute; right: -4px; top: -8px; width: 8px; height: 8px; background: var(--accent); border-radius: 50%; }
.brand-name { color: var(--deep); font-family: Georgia,serif; font-size: .96rem; line-height: 1.08; letter-spacing: .01em; }
.site-header nav { display: flex; align-items: center; gap: clamp(15px,2vw,28px); }
.site-header nav a { color: var(--deep); font-size: .74rem; font-weight: 800; letter-spacing: .09em; text-decoration: none; text-transform: uppercase; }
.site-header nav .nav-cta { padding: 13px 17px; color: var(--white); background: var(--accent); border-radius: 3px; }

.hero {
  min-height: 680px;
  padding: clamp(70px,9vw,130px) clamp(22px,8vw,128px) clamp(70px,8vw,112px);
  display: grid;
  grid-template-columns: minmax(0,1.35fr) minmax(280px,.65fr);
  align-items: center;
  gap: clamp(48px,7vw,110px);
  color: var(--white);
  background:
    radial-gradient(circle at 83% 20%, rgba(239,98,54,.26), transparent 25rem),
    linear-gradient(135deg,var(--deep-2),var(--deep));
}
.eyebrow,.section-kicker { color: var(--accent); font-size: .76rem; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.hero h1 { max-width: 930px; margin: 20px 0 0; color: var(--white); font-size: clamp(3rem,5.6vw,5.8rem); line-height: .98; letter-spacing: -.045em; }
.hero-intro { max-width: 790px; margin: 30px 0 0; color: #ff9b7b; font-size: clamp(1.06rem,1.5vw,1.28rem); font-weight: 650; line-height: 1.67; }
.hero-actions { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; }
.button { min-height: 48px; padding: 14px 20px; display: inline-flex; align-items: center; justify-content: center; border-radius: 3px; font-size: .78rem; font-weight: 800; letter-spacing: .07em; text-decoration: none; text-transform: uppercase; }
.button-primary { color: var(--white)!important; background: var(--accent); }
.button-primary:hover { background: var(--accent-dark); }
.button-secondary { color: var(--white)!important; border: 1px solid rgba(255,255,255,.46); }
.hero-note { max-width: 820px; margin: 48px 0 0; padding-top: 22px; color: #dce9ed; border-top: 1px solid rgba(255,255,255,.23); font-size: .93rem; }
.hero-note strong { color: var(--white); }
.hero-map { padding: 28px 28px 24px; background: rgba(0,34,50,.44); border: 1px solid rgba(255,255,255,.2); box-shadow: 0 28px 70px rgba(0,28,40,.28); }
.map-label { padding-bottom: 18px; color: #ff9b7b; border-bottom: 1px solid rgba(255,255,255,.22); font-size: .72rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.map-step { position: relative; padding: 20px 0 19px 48px; display: grid; border-bottom: 1px solid rgba(255,255,255,.15); }
.map-step:last-child { border-bottom: 0; }
.map-step span { position: absolute; top: 23px; left: 0; color: var(--accent); font-size: .72rem; font-weight: 800; }
.map-step strong { font-family: Georgia,serif; font-size: 1.35rem; font-weight: 500; }
.map-step small { margin-top: 2px; color: #c7d8de; }

.principles-band { padding: 24px clamp(22px,6vw,94px); display: grid; grid-template-columns: repeat(4,1fr); color: var(--white); background: var(--accent); }
.principles-band div { min-height: 78px; padding: 8px clamp(16px,2.3vw,34px); display: flex; flex-direction: column; justify-content: center; border-left: 1px solid rgba(255,255,255,.35); }
.principles-band div:first-child { border-left: 0; }
.principles-band strong { font-family: Georgia,serif; font-size: 1.55rem; font-weight: 500; }
.principles-band span { margin-top: 6px; font-size: .72rem; line-height: 1.45; letter-spacing: .045em; text-transform: uppercase; }

.section { padding: clamp(76px,8vw,118px) clamp(22px,6vw,94px); }
.section-heading { max-width: 1260px; margin: 0 auto 50px; display: grid; grid-template-columns: minmax(0,1.25fr) minmax(280px,.75fr); align-items: end; gap: clamp(36px,6vw,90px); }
.section-heading h2 { max-width: 780px; margin: 10px 0 0; color: var(--deep); font-size: clamp(2.45rem,4.5vw,4.6rem); line-height: 1.02; letter-spacing: -.035em; }
.section-heading > p { margin-bottom: 5px; color: var(--muted); line-height: 1.7; }

.section-model { background: var(--paper); }
.build-path { max-width: 1260px; margin: 0 auto; padding: 0; display: grid; grid-template-columns: repeat(5,1fr); list-style: none; border-top: 1px solid var(--line); }
.build-path li { position: relative; padding: 30px 26px 22px; border-left: 1px solid var(--line); }
.build-path li:last-child { border-right: 1px solid var(--line); }
.build-path li::before { content: ""; position: absolute; top: -4px; left: -1px; width: 50%; height: 4px; background: var(--accent); }
.path-number { color: var(--accent-dark); font-size: .72rem; font-weight: 800; letter-spacing: .1em; }
.build-path h3 { margin: 18px 0 12px; color: var(--deep); font-family: Georgia,serif; font-size: 1.38rem; font-weight: 500; line-height: 1.18; }
.build-path p { margin: 0; color: var(--muted); font-size: .91rem; line-height: 1.62; }

.section-course { color: var(--white); background: var(--deep-2); }
.section-heading.light h2 { color: var(--white); }
.section-heading.light > p { color: #c6d6dc; }
.case-path { max-width: 1260px; margin: 0 auto; display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid rgba(255,255,255,.2); border-left: 1px solid rgba(255,255,255,.2); }
.case-path article { min-height: 218px; padding: 28px; border-right: 1px solid rgba(255,255,255,.2); border-bottom: 1px solid rgba(255,255,255,.2); }
.case-path span { color: var(--accent); font-size: .71rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.case-path h3 { margin: 15px 0 12px; font-family: Georgia,serif; font-size: 1.55rem; font-weight: 500; line-height: 1.18; }
.case-path p { margin: 0; color: #c9d8de; font-size: .91rem; line-height: 1.6; }
.learning-mix { max-width: 1260px; margin: 76px auto 0; padding-top: 54px; display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(40px,6vw,90px); border-top: 1px solid rgba(255,255,255,.22); }
.mix-intro h3 { margin: 12px 0 17px; font-family: Georgia,serif; font-size: clamp(2rem,3.3vw,3.35rem); font-weight: 500; line-height: 1.04; }
.mix-intro > p:last-child { color: #c9d8de; line-height: 1.65; }
.mix-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
.mix-grid article { padding: 24px; background: rgba(255,255,255,.07); border-top: 3px solid var(--accent); }
.mix-grid span { color: #ff9b7b; font-size: .68rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.mix-grid h4 { margin: 11px 0 8px; font-size: 1.02rem; }
.mix-grid p { margin: 0; color: #c9d8de; font-size: .86rem; line-height: 1.55; }

.section-value { background: var(--white); }
.value-grid { max-width: 1260px; margin: 0 auto; display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.value-grid article { padding: 28px; background: var(--paper); border: 1px solid var(--line); }
.value-grid span { color: var(--accent); font-size: .75rem; font-weight: 800; }
.value-grid h3 { margin: 30px 0 13px; color: var(--deep); font-family: Georgia,serif; font-size: 1.55rem; font-weight: 500; line-height: 1.18; }
.value-grid p { margin: 0; color: var(--muted); font-size: .92rem; line-height: 1.62; }

.section-fit { display: grid; grid-template-columns: minmax(280px,.85fr) minmax(420px,1.15fr); gap: clamp(46px,8vw,120px); background: var(--soft-blue); }
.fit-copy { max-width: 620px; justify-self: end; }
.fit-copy h2 { margin: 12px 0 22px; color: var(--deep); font-size: clamp(2.5rem,4.5vw,4.65rem); line-height: 1.02; letter-spacing: -.035em; }
.fit-copy > p { color: var(--muted); line-height: 1.68; }
.fit-limit { margin-top: 32px!important; padding: 20px 22px; background: var(--white); border-left: 4px solid var(--accent); font-size: .9rem; }
.fit-limit strong { color: var(--deep); }
.fit-list { align-self: center; border-top: 1px solid #bfcdd0; }
.fit-list div { padding: 24px 4px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 30px; border-bottom: 1px solid #bfcdd0; }
.fit-list span { color: var(--deep); font-family: Georgia,serif; font-size: 1.25rem; }
.fit-list small { color: var(--muted); font-size: .88rem; line-height: 1.55; }

.closing-section { padding: clamp(84px,9vw,132px) 22px; color: var(--white); background: var(--deep); text-align: center; }
.closing-section h2 { max-width: 900px; margin: 14px auto 22px; color: var(--white); font-size: clamp(2.7rem,5vw,5rem); line-height: 1.01; letter-spacing: -.04em; }
.closing-section > p:not(.section-kicker) { max-width: 730px; margin: 0 auto 30px; color: #d4e1e6; font-size: 1.03rem; line-height: 1.7; }
.closing-prompts { max-width: 740px; margin: 50px auto 0; padding-top: 22px; display: grid; grid-template-columns: repeat(3,1fr); color: #c4d5db; border-top: 1px solid rgba(255,255,255,.24); font-size: .73rem; font-weight: 800; letter-spacing: .075em; text-transform: uppercase; }

footer { padding: 28px clamp(22px,5vw,76px); display: flex; align-items: center; justify-content: space-between; gap: 32px; background: var(--white); }
.footer-brand { transform: scale(.88); transform-origin: left center; }
footer p { margin: 0!important; color: var(--muted); font-size: .8rem; text-align: right; }
footer p a { color: var(--deep)!important; }

@media (max-width: 1050px) {
  .hero { grid-template-columns: 1fr; }
  .hero-map { max-width: 780px; display: grid; grid-template-columns: repeat(2,1fr); }
  .map-label { grid-column: 1/-1; }
  .map-step:nth-child(even) { border-right: 1px solid rgba(255,255,255,.15); }
  .build-path { grid-template-columns: repeat(2,1fr); border-left: 1px solid var(--line); }
  .build-path li:last-child { grid-column: 1/-1; }
  .case-path { grid-template-columns: repeat(2,1fr); }
  .value-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 760px) {
  .site-header { align-items: flex-start; }
  .site-header nav { justify-content: flex-end; }
  .site-header nav a:not(.nav-cta) { display: none; }
  .hero { min-height: 0; }
  .hero h1 { font-size: clamp(3rem,13vw,4.5rem); }
  .principles-band { grid-template-columns: repeat(2,1fr); }
  .principles-band div:nth-child(3) { border-left: 0; border-top: 1px solid rgba(255,255,255,.35); }
  .principles-band div:nth-child(4) { border-top: 1px solid rgba(255,255,255,.35); }
  .section-heading,.learning-mix,.section-fit { grid-template-columns: 1fr; }
  .fit-copy { justify-self: start; }
  .fit-list div { grid-template-columns: 1fr; gap: 8px; }
}

@media (max-width: 560px) {
  .brand-name { display: none; }
  .site-header { min-height: 78px; }
  .hero-map,.build-path,.case-path,.mix-grid,.value-grid { grid-template-columns: 1fr; }
  .map-step:nth-child(even) { border-right: 0; }
  .build-path li:last-child { grid-column: auto; }
  .build-path li { border-right: 1px solid var(--line); }
  .principles-band { padding-left: 10px; padding-right: 10px; }
  .principles-band div { min-height: 110px; padding: 14px; }
  .closing-prompts { grid-template-columns: 1fr; gap: 12px; }
  footer { align-items: flex-start; flex-direction: column; }
  footer p { text-align: left; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }