:root {
  color-scheme: light;
  font-family: system-ui, "Microsoft JhengHei", "PingFang TC", sans-serif;
  --night: #102d29;
  --mint: #d4e3cf;
  --gold: #ebca89;
  --linen: #fbfaf4;
  --ink: #18362f;
}

*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  background:
    radial-gradient(ellipse at 76% 10%, #2e5243 0%, transparent 50%),
    radial-gradient(ellipse at 10% 100%, #254436 0%, transparent 52%),
    var(--night);
  color: var(--linen);
  min-inline-size: 0;
}
a { color: inherit; }
:focus-visible { outline: 3px solid #d89930; outline-offset: 4px; }
.skip-link {
  position: fixed;
  z-index: 2;
  inset-block-start: 0.75rem;
  inset-inline-start: 0.75rem;
  padding: 0.65rem 1rem;
  background: var(--linen);
  color: var(--ink);
  border-radius: 0.4rem;
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }
.shell {
  display: flex;
  flex-direction: column;
  min-block-size: 100vh;
  inline-size: min(100% - 4rem, 74rem);
  margin-inline: auto;
}
.masthead, .footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  border-color: #ffffff33;
  border-style: solid;
  border-width: 0;
}
.masthead { min-block-size: 6rem; border-block-end-width: 1px; }
.wordmark { display: flex; align-items: center; gap: 0.75rem; }
.monogram {
  display: grid;
  place-items: center;
  flex: none;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  border: 1px solid #a59364;
  border-radius: 0.6rem;
  color: var(--gold);
  font: 600 2rem/1 Georgia, serif;
}
.wordmark strong { display: block; font-size: 1.03rem; letter-spacing: -0.015em; }
.wordmark div span { display: block; color: var(--mint); font-size: 0.75rem; margin-block-start: 0.18rem; }
.language {
  display: flex;
  flex: none;
  align-items: center;
  gap: 0.15rem;
  padding: 0.2rem;
  border: 1px solid #ffffff38;
  border-radius: 0.6rem;
  background: #112e28;
}
.language a {
  display: grid;
  place-items: center;
  padding-inline: 0.65rem;
  min-block-size: 2.75rem;
  text-decoration: none;
  font-weight: 650;
  font-size: 0.78rem;
  border-radius: 0.38rem;
}
.language a:hover { background: #34594c; }
.language a[aria-current] { background: var(--mint); color: var(--night); }
.main {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(21rem, 0.94fr);
  align-items: center;
  gap: clamp(2rem, 7vw, 6.5rem);
  padding: clamp(2.5rem, 7vh, 6rem) 0;
}
.intro { min-inline-size: 0; }
.eyebrow, .access-label {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--mint);
  margin: 0 0 1.3rem;
  font-size: 0.74rem;
  font-weight: 750;
  letter-spacing: 0.095em;
}
.eyebrow span, .access-label span {
  flex: none;
  inline-size: 0.45rem;
  block-size: 0.45rem;
  border-radius: 50%;
  background: var(--gold);
}
h1, h2 { margin: 0; line-height: 1.16; text-wrap: balance; }
h1 { font-size: clamp(2.5rem, 5.15vw, 4.75rem); letter-spacing: -0.055em; }
h1 em { font-style: normal; color: var(--gold); }
.lead {
  max-inline-size: 31rem;
  margin: 1.3rem 0 0;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  line-height: 1.75;
  color: var(--mint);
}
.capabilities {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
}
.capabilities li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.65rem;
  font-size: 0.76rem;
  font-weight: 550;
  border: 1px solid #ffffff38;
  border-radius: 0.5rem;
}
.capabilities svg { flex: none; color: var(--gold); }
.signin {
  min-inline-size: 0;
  align-self: center;
  padding: clamp(1.2rem, 3.3vw, 2.6rem);
  border: 1px solid #d4dfc7;
  border-radius: 1.05rem;
  color: var(--ink);
  background: var(--linen);
  box-shadow: 0 1.4rem 4rem #081c194c;
}
.access-label { color: #415c4b; margin-block-end: 0.85rem; }
.access-label span { background: #396c54; }
h2 { font-size: clamp(1.55rem, 2.6vw, 2.35rem); letter-spacing: -0.038em; }
.card-labels { display: flex; align-items: center; flex-wrap: wrap; gap: 0.5rem 0.9rem; margin-block-end: 0.85rem; }
.card-labels .access-label { margin: 0; }
.preview-badge {
  margin: 0;
  padding: 0.25rem 0.5rem;
  border: 1px solid #d9cba5;
  border-radius: 0.38rem;
  background: #f5ecd6;
  color: #574320;
  font-size: 0.72rem;
  font-weight: 680;
}
.auth-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 0.95rem 0 1.25rem;
  padding: 0;
  list-style: none;
  color: #4e6055;
  font-size: 0.79rem;
}
.auth-steps li { display: flex; align-items: center; gap: 0.4rem; }
.auth-steps li[aria-current] { color: #174536; font-weight: 720; }
.auth-steps li span {
  display: grid;
  place-items: center;
  inline-size: 1.5rem;
  block-size: 1.5rem;
  border: 1px solid #cdd9cf;
  border-radius: 50%;
  font-size: 0.69rem;
  font-variant-numeric: tabular-nums;
}
.auth-steps li[aria-current] span { background: #dbe9dc; border-color: #b9cdbd; }
.auth-form { display: grid; gap: 0.55rem; }
.auth-form label { color: #18362f; font-size: 0.91rem; font-weight: 720; }
.auth-form input:not([type="hidden"]) {
  inline-size: 100%;
  min-inline-size: 0;
  min-block-size: 3rem;
  padding: 0.65rem 0.78rem;
  border: 1px solid #91a99a;
  border-radius: 0.5rem;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
}
.auth-form input[aria-invalid="true"] { border-color: #a93831; }
#login-code { letter-spacing: 0.18em; font-weight: 700; font-variant-numeric: tabular-nums; }
.field-hint, .preview-description { margin: 0; line-height: 1.55; color: #455b50; font-size: 0.83rem; }
.preview-description { margin-block-start: 1rem; }
.auth-form .primary { margin-block-start: 0.3rem; }
.identity { display: flex; flex-wrap: wrap; gap: 0.3rem 0.55rem; margin: 0 0 0.95rem; font-size: 0.86rem; }
.identity span { color: #455b50; }
.identity bdi { font-weight: 690; overflow-wrap: anywhere; }
.feedback { margin: 0; border: 1px solid; border-radius: 0.45rem; padding: 0.62rem 0.75rem; font-size: 0.85rem; line-height: 1.5; }
.feedback.error { border-color: #d49d98; background: #fcedeb; color: #752522; }
.feedback.notice { border-color: #c0d2c3; background: #e9f2e9; color: #254c3c; }
.primary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.65rem;
  min-block-size: 3.45rem;
  padding: 0.72rem 1rem;
  border: 0;
  border-radius: 0.56rem;
  background: #1b4b3b;
  color: #fff;
  font: inherit;
  font-size: 1rem;
  font-weight: 720;
  text-align: start;
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
}
.primary svg { flex: none; }
.primary:hover { background: #12372c; }
.auth-actions { display: flex; flex-wrap: wrap; gap: 0.15rem 0.85rem; margin-block-start: 0.45rem; }
.secondary {
  min-block-size: 2.75rem;
  border: 0;
  padding: 0 0.2rem;
  border-radius: 0.3rem;
  background: transparent;
  color: #245745;
  font: inherit;
  font-size: 0.86rem;
  font-weight: 690;
  text-decoration: underline;
  text-underline-offset: 0.17em;
  cursor: pointer;
  touch-action: manipulation;
}
.secondary:hover { color: #12372c; text-decoration-thickness: 2px; }
.sample-accounts { margin-block-start: 1rem; padding: 0.72rem; border: 1px solid #dbdfd2; border-radius: 0.55rem; background: #f1f2ea; }
.sample-accounts p { margin: 0; color: #455b50; font-size: 0.8rem; line-height: 1.5; }
.sample-accounts ul { display: grid; gap: 0.33rem; margin: 0.5rem 0 0; padding: 0; list-style: none; }
.sample-accounts li { display: flex; flex-wrap: wrap; gap: 0.16rem 0.45rem; align-items: baseline; font-size: 0.82rem; }
.sample-accounts li span { color: #4b5f52; }
.sample-accounts bdi { font-weight: 700; overflow-wrap: anywhere; }
.security { display: flex; align-items: center; gap: 0.45rem; margin: 0.85rem 0 1.25rem; font-size: 0.81rem; color: #465f50; }
.security svg { flex: none; }
.help { border-block-start: 1px solid #d7ded1; }
.help summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  min-block-size: 2.75rem;
  padding-block: 0.6rem;
  cursor: pointer;
  list-style: none;
  font-size: 0.88rem;
  font-weight: 650;
}
.help summary::-webkit-details-marker { display: none; }
.help summary:hover { text-decoration: underline; text-underline-offset: 0.22em; }
.help summary span {
  inline-size: 0.44rem;
  block-size: 0.44rem;
  flex: none;
  margin-inline-end: 0.2rem;
  border: solid currentColor;
  border-width: 0 1.5px 1.5px 0;
  transform: rotate(45deg);
}
.help[open] summary span { transform: rotate(225deg); }
.help ul { margin: 0.1rem 0 0; padding-inline-start: 1.25rem; font-size: 0.86rem; line-height: 1.6; color: #455b50; }
.help li + li { margin-block-start: 0.38rem; }
.support-contact { margin: 0.45rem 0 0; color: #455b50; font-size: 0.86rem; line-height: 1.6; }
.support-contact a { color: #194c42; font-weight: 650; overflow-wrap: anywhere; text-decoration: underline; text-underline-offset: 0.15em; }
.local-inbox { margin-block-start: 0.45rem; padding-inline: 0.75rem; border: 1px solid #cfdbce; border-radius: 0.55rem; background: #eef3ec; }
.inbox-content { padding-block-end: 0.8rem; }
.inbox-content p { margin: 0 0 0.45rem; color: #455b50; font-size: 0.85rem; line-height: 1.55; }
#local-test-code {
  display: inline-block;
  padding: 0.32rem 0.5rem;
  border-radius: 0.32rem;
  background: #dbe8da;
  color: #18362f;
  font-size: 1.17rem;
  font-weight: 750;
  letter-spacing: 0.16em;
}
.footer { min-block-size: 4.3rem; border-block-start-width: 1px; color: var(--mint); font-size: 0.76rem; }
.footer span:first-child { font-weight: 700; }
.footer span:last-child { text-align: end; }

@media (max-width: 52rem) {
  .shell { inline-size: min(100% - 2.5rem, 33rem); }
  .main { grid-template-columns: minmax(0, 1fr); padding-block: 2.1rem 2.5rem; gap: 1.7rem; }
  .eyebrow { margin-block-end: 0.75rem; }
  h1 { font-size: clamp(2rem, 7.2vw, 3.6rem); }
  .lead { margin-block-start: 0.75rem; line-height: 1.55; }
  .capabilities { display: none; }
  .masthead { min-block-size: 4.65rem; }
  .signin { padding: 1.15rem; }
}

@media (max-width: 24rem) {
  .shell { inline-size: calc(100% - 1.6rem); }
  .wordmark { gap: 0.46rem; }
  .wordmark strong { font-size: 0.89rem; }
  .monogram { inline-size: 2.2rem; block-size: 2.2rem; font-size: 1.62rem; }
  .language a { padding-inline: 0.5rem; }
}