:root {
  color-scheme: light dark;
  --bg: #f6f3ec;
  --surface: rgba(255, 253, 247, 0.86);
  --surface-solid: #fffdf7;
  --ink: #1d2a44;
  --muted: #5a6680;
  --primary: #315d9f;
  --primary-strong: #244979;
  --primary-soft: #dceafb;
  --warm: #f7e6a8;
  --line: #d7d7d0;
  --shadow: 0 20px 52px rgba(43, 68, 102, 0.1);
  --focus: #ba5a00;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111a2e;
    --surface: rgba(24, 37, 64, 0.88);
    --surface-solid: #182540;
    --ink: #f0f3f9;
    --muted: #b1bad0;
    --primary: #9bbcf2;
    --primary-strong: #c8dcff;
    --primary-soft: #253b62;
    --warm: #5b4d28;
    --line: #334160;
    --shadow: 0 24px 64px rgba(0, 0, 0, 0.24);
    --focus: #ffbd6b;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 8% 4%, rgba(247, 230, 168, 0.42), transparent 24rem),
    radial-gradient(circle at 96% 12%, rgba(127, 184, 230, 0.28), transparent 28rem),
    var(--bg);
  color: var(--ink);
  font: 17px/1.72 "IBM Plex Sans Thai", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-rendering: optimizeLegibility;
}

a { color: var(--primary); text-underline-offset: 0.18em; }
a:hover { color: var(--primary-strong); }
a:focus-visible,
summary:focus-visible {
  border-radius: 6px;
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--surface-solid);
  color: var(--ink);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header,
.site-main,
.site-footer {
  width: min(100% - 32px, 880px);
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 82px;
  padding-block: 14px;
}

.brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
}
.brand img {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(39, 71, 107, 0.16);
}

.site-nav,
.nav-links,
.language-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.site-nav { gap: 14px; }
.nav-link,
.language-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 15px;
  text-decoration: none;
}
.nav-link:hover,
.language-link:hover,
.nav-link[aria-current="page"],
.language-link[aria-current="page"] {
  background: var(--primary-soft);
  color: var(--ink);
}
.language-links {
  padding-left: 12px;
  border-left: 1px solid var(--line);
}

.site-main { padding: 26px 0 54px; }

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(28px, 6vw, 54px);
  border: 1px solid rgba(127, 184, 230, 0.35);
  border-radius: 28px;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.76), rgba(220, 234, 251, 0.66)),
    var(--surface);
  box-shadow: var(--shadow);
}
.hero::before,
.hero::after {
  position: absolute;
  z-index: -1;
  content: "";
  pointer-events: none;
}
.hero::before {
  width: 250px;
  height: 250px;
  right: -64px;
  bottom: -132px;
  border-radius: 50% 50% 22% 22%;
  background: rgba(108, 155, 96, 0.2);
  transform: rotate(-8deg);
}
.hero::after {
  width: 94px;
  height: 150px;
  right: 52px;
  bottom: 26px;
  border: 12px solid rgba(255, 250, 219, 0.74);
  border-bottom-width: 7px;
  border-radius: 48px 48px 14px 14px;
  box-shadow: 14px -10px 0 rgba(159, 204, 235, 0.2);
}

@media (prefers-color-scheme: dark) {
  .hero {
    background:
      linear-gradient(150deg, rgba(33, 51, 86, 0.9), rgba(23, 40, 70, 0.82)),
      var(--surface);
  }
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--primary-strong);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

h1,
h2,
h3 { color: var(--ink); }
h1 {
  max-width: 15ch;
  margin: 0;
  font-family: "Noto Serif Thai", serif;
  font-size: clamp(32px, 6vw, 48px);
  line-height: 1.25;
}
h2 {
  margin: 52px 0 12px;
  font-size: clamp(22px, 3vw, 27px);
  line-height: 1.35;
}
h3 { margin: 0; font-size: 18px; line-height: 1.45; }

p,
li { color: var(--muted); }
.lead {
  max-width: 58ch;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.8vw, 21px);
}
.hero .lead { max-width: 34ch; padding-right: 110px; }
strong { color: var(--ink); }

.status-row,
.quick-links,
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.status-row { margin-top: 20px; }
.status-item,
.quick-link,
.trust-item {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
}
.status-item strong,
.status-item span { display: block; }
.status-item span { margin-top: 2px; color: var(--muted); font-size: 14px; }
.quick-link {
  min-height: 112px;
  color: var(--ink);
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease;
}
.quick-link:hover { border-color: var(--primary); transform: translateY(-2px); }
.quick-link span { display: block; margin-top: 8px; color: var(--muted); font-size: 15px; }

.faq-list {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
}
details + details { border-top: 1px solid var(--line); }
summary {
  min-height: 58px;
  padding: 17px 54px 17px 20px;
  color: var(--ink);
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  position: relative;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  position: absolute;
  top: 18px;
  right: 20px;
  color: var(--primary);
  content: "+";
  font-size: 24px;
  font-weight: 400;
  line-height: 1;
}
details[open] summary::after { content: "−"; }
.answer { padding: 0 20px 20px; }
.answer > :first-child { margin-top: 0; }
.answer > :last-child { margin-bottom: 0; }
.steps { margin: 10px 0 0; padding-left: 24px; }
.steps li + li { margin-top: 7px; }

.callout {
  margin-top: 36px;
  padding: 22px;
  border: 1px solid var(--line);
  border-left: 5px solid var(--primary);
  border-radius: 18px;
  background: var(--surface);
}
.callout h2 { margin: 0 0 8px; font-size: 21px; }
.callout p { margin: 6px 0; }
.contact-link { overflow-wrap: anywhere; }

.prose { max-width: 720px; }
.prose h1 { max-width: 22ch; }
.prose h2 { margin-top: 44px; }
.prose ul { padding-left: 24px; }
.prose li + li { margin-top: 9px; }
.updated { margin-top: 10px; font-size: 15px; }
.privacy-intro {
  margin: 24px 0 34px;
  padding: 22px;
  border-radius: 18px;
  background: var(--primary-soft);
  color: var(--ink);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 10px 18px; }
.footer-links a { min-height: 44px; display: inline-flex; align-items: center; }

.redirect-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}
.redirect-card {
  max-width: 460px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--shadow);
  text-align: center;
}
.redirect-card img { border-radius: 16px; }

@media (max-width: 760px) {
  .site-header { align-items: flex-start; flex-direction: column; gap: 8px; }
  .site-nav { width: 100%; justify-content: space-between; overflow-x: auto; }
  .hero .lead { padding-right: 0; }
  .hero::after { opacity: 0.28; right: 20px; }
  .status-row,
  .quick-links,
  .trust-grid { grid-template-columns: 1fr; }
  .site-footer { flex-direction: column; gap: 4px; }
}

@media (max-width: 430px) {
  .site-header,
  .site-main,
  .site-footer { width: min(100% - 24px, 880px); }
  .brand img { width: 42px; height: 42px; }
  .site-nav { gap: 5px; }
  .nav-links { gap: 2px; }
  .nav-link,
  .language-link { padding-inline: 8px; font-size: 14px; }
  .language-links { padding-left: 6px; }
  .hero { padding: 28px 22px; border-radius: 22px; }
  .hero::after { display: none; }
  h1 { font-size: 31px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}