/* Contact card · 90 × 54 mm (Taiwan standard), screen + print.
 * Card geometry is expressed in --mm so the same markup renders at any
 * on-screen width and at true size when printed.
 */
@import url("../tokens.css");

:root {
  --font-han: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;

  /* Light print palette: unprinted white stock, site ink, a deeper purple
   * that keeps contrast on white, and the site's lavender for fills. */
  --card-paper: #ffffff;
  --card-ink: var(--color-paper);
  --card-muted: #555a72;
  --card-rule: #d5d7e0;
  --card-accent: #7a4ddb;
  --card-accent-soft: var(--color-accent);
  --qr-light: var(--card-paper);
  --qr-dark: var(--card-ink);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
  background: var(--color-paper);
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration-thickness: var(--rule-hair);
  text-underline-offset: 0.22em;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  inset-block-start: var(--space-md);
  inset-inline-start: var(--space-md);
  z-index: 10;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-ink);
  color: var(--color-paper);
  opacity: 0;
  transform: translateY(-150%);
}

.skip-link:focus {
  opacity: 1;
  transform: none;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* Page */

.card-page__head,
.card-page {
  width: min(100%, 36rem);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.card-page__head {
  padding-block: var(--space-lg) 0;
}

.card-page__home {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
}

.card-page__home:hover {
  color: var(--color-ink);
}

.card-page {
  display: grid;
  gap: var(--space-xl);
  padding-block: var(--space-lg) var(--space-3xl);
}

.cards {
  display: grid;
  gap: var(--space-lg);
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 var(--space-lg);
  border: var(--rule-hair) solid var(--color-rule-strong);
  border-radius: var(--radius-control);
  background: var(--color-transparent);
  color: var(--color-ink);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: border-color var(--dur-micro) var(--ease-out), background-color var(--dur-micro) var(--ease-out);
}

.button:hover {
  border-color: var(--color-signal);
}

.button--primary {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.button--primary:hover {
  background: var(--color-signal);
}

.card-links {
  margin: 0;
  border-block: var(--rule-hair) solid var(--color-ink);
}

.card-links > div {
  display: grid;
  grid-template-columns: 6rem minmax(0, 1fr);
  gap: var(--space-md);
  align-items: baseline;
  padding-block: var(--space-sm);
  border-block-end: var(--rule-hair) solid var(--color-rule);
}

.card-links > div:last-child {
  border-block-end: 0;
}

.card-links dt {
  color: var(--color-muted);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card-links dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.card-page__note {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

/* Card */

.card {
  container-type: inline-size;
  width: 100%;
  aspect-ratio: 90 / 54;
  box-shadow: 0 0.75rem 2rem rgb(0 0 0 / 0.35);
}

.card__face {
  --mm: calc(100cqw / 90);
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--card-paper);
  color: var(--card-ink);
  print-color-adjust: exact;
  -webkit-print-color-adjust: exact;
}

.card__rail {
  position: absolute;
  background: var(--card-rule);
}

/* Accent node where the rails cross */
.card__face::after {
  content: "";
  position: absolute;
  inset-block-start: calc(var(--mm) * 4.6);
  inset-inline-start: calc(var(--mm) * 4.6);
  width: calc(var(--mm) * 1.95);
  height: calc(var(--mm) * 1.95);
  background: var(--card-accent);
}

.card__rail--v {
  inset-block: 0;
  inset-inline-start: calc(var(--mm) * 5.5);
  width: max(1px, calc(var(--mm) * 0.15));
}

.card__rail--h {
  inset-inline: 0;
  inset-block-start: calc(var(--mm) * 5.5);
  height: max(1px, calc(var(--mm) * 0.15));
}

.card__body {
  position: absolute;
  inset: calc(var(--mm) * 12) calc(var(--mm) * 7) calc(var(--mm) * 6) calc(var(--mm) * 10);
  display: flex;
  flex-direction: column;
}

.card__body p {
  margin: 0;
}

.card__name {
  font-family: var(--font-display);
  font-size: calc(var(--mm) * 6.6);
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1;
}

.card__name .period {
  display: inline-block;
  width: 0.2em;
  height: 0.2em;
  margin-inline-start: 0.08em;
  background: var(--card-accent);
}

.card__field {
  margin-block-start: calc(var(--mm) * 2.6) !important;
  color: var(--card-accent);
  font-size: calc(var(--mm) * 3);
  font-weight: 600;
  letter-spacing: 0.06em;
}

/* Hairline led by a short accent bar, as in the site's section heads */
.card__rule {
  width: 100%;
  height: calc(var(--mm) * 0.6);
  margin: calc(var(--mm) * 3.4) 0 calc(var(--mm) * 2.8);
  border: 0;
  background:
    linear-gradient(var(--card-accent), var(--card-accent)) 0 0 / calc(var(--mm) * 12) 100% no-repeat,
    linear-gradient(var(--card-rule), var(--card-rule)) 0 0 / 100% max(1px, calc(var(--mm) * 0.15)) no-repeat;
}

.card__meta {
  color: var(--card-muted);
  font-size: calc(var(--mm) * 2.2);
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.6;
}

.card__contact {
  display: flex;
  flex-wrap: wrap;
  column-gap: calc(var(--mm) * 4);
  margin-block-start: auto !important;
  font-size: calc(var(--mm) * 2.3);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.card__body--back {
  flex-direction: row;
  align-items: stretch;
  justify-content: space-between;
  gap: calc(var(--mm) * 4);
}

.card__body--back > div {
  display: flex;
  flex-direction: column;
}

.card__name--han {
  font-family: var(--font-han);
  font-size: calc(var(--mm) * 6.4);
  font-weight: 600;
  letter-spacing: 0.12em;
}

.card__name--han::after {
  content: "";
  display: block;
  width: calc(var(--mm) * 8);
  height: calc(var(--mm) * 0.6);
  margin-block-start: calc(var(--mm) * 3);
  background: var(--card-accent);
}

.card__meta--han {
  margin-block-start: calc(var(--mm) * 2.6) !important;
  font-family: var(--font-han);
  font-size: calc(var(--mm) * 2.4);
  letter-spacing: 0.08em;
  line-height: 1.6;
}

.card__meta--han + .card__meta--han {
  margin-block-start: calc(var(--mm) * 1.6) !important;
}

.card__qr {
  flex: 0 0 auto;
  align-self: flex-end;
  width: calc(var(--mm) * 24);
  height: calc(var(--mm) * 24);
}

/* Print: one card per page, true size */

@page {
  size: 90mm 54mm;
  margin: 0;
}

@media print {
  html,
  body {
    background: none;
  }

  .skip-link,
  .card-page__head,
  .card-actions,
  .card-links,
  .card-page__note {
    display: none;
  }

  .card-page,
  .cards {
    display: block;
    width: auto;
    padding: 0;
    margin: 0;
  }

  .card {
    width: 90mm;
    height: 54mm;
    box-shadow: none;
    break-after: page;
  }

  .card:last-child {
    break-after: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .button {
    transition: none;
  }
}