/* Voyagraph — placeholder company page
   Bottle Green #2E4A3B · Cream #F4EAD5 · Brass #A1683F · Iron Ink #1F1E17 · Lacquer Red #9E2B1E */

:root {
  --green: #2e4a3b;
  --green-deep: #243a2f;
  --cream: #f4ead5;
  --cream-soft: #faf4e8;
  --brass: #a1683f;
  --brass-text: #7a4a2e; /* darker brass for body/label text ≥4.5:1 on cream */
  --ink: #1f1e17;
  --lacquer: #9e2b1e;
  --muted: rgba(31, 30, 23, 0.78); /* was 0.62; ~4.5:1+ on cream */
  --line: rgba(161, 104, 63, 0.35);
  --shadow: 0 12px 40px rgba(31, 30, 23, 0.08);
  --font-display: "Cinzel", "Noto Serif TC", serif;
  --font-body: "EB Garamond", "Noto Serif TC", Georgia, serif;
  --font-tc: "Noto Serif TC", "EB Garamond", serif;
  --max: 1100px;
  --narrow: 640px;
  --header-h: 4.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 0.5rem);
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

html[lang="zh-Hant"] body,
html[lang="zh-Hant"] .lang-tc {
  font-family: var(--font-tc);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Author display:block on img overrides UA [hidden]; keep language logos/text hideable */
[hidden] {
  display: none !important;
}

a {
  color: var(--green);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 0.2s var(--ease);
}

a:hover {
  color: var(--brass);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100%;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--green);
  color: var(--cream);
}

.skip-link:focus {
  top: 1rem;
}

/* ——— Header ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 234, 213, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.brand img {
  height: 2.75rem;
  width: auto;
}

.brand .brand-wordmark {
  height: 1.35rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.25rem;
}

.site-nav a {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
}

html[lang="zh-Hant"] .site-nav a {
  font-family: var(--font-tc);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: none;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--green);
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--brass);
  border-radius: 999px;
  overflow: hidden;
}

.lang-switch button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
}

.lang-switch button.is-active {
  background: var(--green);
  color: var(--cream);
}

.nav-toggle {
  display: none;
  appearance: none;
  border: 0;
  background: transparent;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.5rem;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 0.4rem;
}

.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.25s var(--ease);
}

/* ——— Sections ——— */
.section {
  padding: 4.5rem 1.25rem;
}

.section-alt {
  background: var(--cream-soft);
  border-block: 1px solid var(--line);
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section-narrow {
  max-width: var(--narrow);
}

.label {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brass-text);
}

html[lang="zh-Hant"] .label {
  font-family: var(--font-tc);
  letter-spacing: 0.12em;
  text-transform: none;
  font-size: 0.85rem;
}

h1,
h2,
h3 {
  font-weight: 500;
  line-height: 1.25;
  color: var(--green);
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.5vw, 3.35rem);
  letter-spacing: 0.04em;
  margin: 0 0 1rem;
  max-width: 16ch;
}

html[lang="zh-Hant"] h1 {
  font-family: var(--font-tc);
  letter-spacing: 0.08em;
  font-weight: 600;
  max-width: 12em;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.2vw, 2.15rem);
  letter-spacing: 0.03em;
  margin: 0 0 1.5rem;
  max-width: 22ch;
}

html[lang="zh-Hant"] h2 {
  font-family: var(--font-tc);
  letter-spacing: 0.04em;
  font-weight: 600;
  max-width: 16em;
}

h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  margin: 0 0 0.4rem;
  color: var(--ink);
}

html[lang="zh-Hant"] h3 {
  font-family: var(--font-tc);
  letter-spacing: 0.04em;
  font-weight: 600;
}

.prose p,
.lede {
  margin: 0 0 1rem;
  color: var(--ink);
  max-width: 52ch;
}

.aside {
  margin-top: 1.75rem !important;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-style: italic;
  color: var(--muted);
  font-size: 1.05rem;
}

.footnote,
.privacy-note,
.concept-tag {
  margin: 1.75rem 0 0;
  font-size: 0.95rem;
  color: var(--muted);
}

/* ——— Hero ——— */
.hero {
  padding: 5.5rem 1.25rem 5rem;
  background:
    linear-gradient(180deg, rgba(46, 74, 59, 0.04), transparent 40%),
    var(--cream);
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--brass-text);
}

html[lang="zh-Hant"] .eyebrow {
  font-family: var(--font-tc);
  letter-spacing: 0.16em;
  text-transform: none;
  font-size: 0.95rem;
}

.supporting {
  margin: 0 0 1.25rem;
  font-size: 1.35rem;
  font-style: italic;
  color: var(--brass-text);
  max-width: 28ch;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.4rem;
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

html[lang="zh-Hant"] .btn {
  font-family: var(--font-tc);
  letter-spacing: 0.08em;
  text-transform: none;
  font-size: 0.95rem;
  font-weight: 500;
}

.btn-primary {
  background: var(--green);
  color: var(--cream);
  border: 1px solid var(--green);
}

.btn-primary:hover {
  background: var(--green-deep);
  color: var(--cream);
  border-color: var(--green-deep);
}

.btn-ghost {
  background: transparent;
  color: var(--green);
  border: 1px solid var(--brass);
}

.btn-ghost:hover {
  border-color: var(--green);
  color: var(--green);
}

/* ——— Steps ——— */
.steps {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.steps li {
  padding: 1.25rem 0 0;
  border-top: 2px solid var(--brass);
}

.step-num {
  display: block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--brass-text);
  margin-bottom: 0.65rem;
}

.steps p {
  margin: 0;
  font-size: 1.02rem;
  color: var(--muted);
}

/* ——— Frames ——— */
.frame-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.frame-card {
  margin: 0;
  background: var(--cream-soft);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.frame-preview {
  aspect-ratio: 3 / 2;
  background: #e8dcc4;
  overflow: hidden;
}

.frame-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.frame-card figcaption {
  padding: 1rem 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.frame-name {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--green);
}

html[lang="zh-Hant"] .frame-name {
  font-family: var(--font-tc);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.frame-hint {
  font-size: 0.95rem;
  color: var(--muted);
}

/* ——— Where ——— */
.next-cities {
  margin: 1.5rem 0;
  font-size: 1.15rem;
}

.city-line {
  margin: 2rem 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--green);
}

/* ——— Contact ——— */
.contact-list {
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.35rem;
}

.contact-list div {
  display: grid;
  gap: 0.25rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--line);
}

.contact-list dt {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brass-text);
}

html[lang="zh-Hant"] .contact-list dt {
  font-family: var(--font-tc);
  letter-spacing: 0.08em;
  text-transform: none;
  font-size: 0.85rem;
}

.contact-list dd {
  margin: 0;
}

.contact-list a {
  font-size: 1.2rem;
  text-decoration: none;
  border-bottom: 1px solid var(--brass);
}

/* ——— Footer ——— */
.site-footer {
  background: var(--green);
  color: var(--cream);
  padding: 3rem 1.25rem;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-seal {
  width: 3rem;
  height: 3rem;
  flex-shrink: 0;
}

.footer-name {
  margin: 0 0 0.25rem;
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

html[lang="zh-Hant"] .footer-name {
  font-family: var(--font-tc);
  text-transform: none;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.footer-tag {
  margin: 0;
  font-style: italic;
  opacity: 0.85;
  font-size: 1rem;
}

.footer-meta {
  max-width: 28rem;
  font-size: 0.95rem;
  opacity: 0.88;
}

.footer-meta p {
  margin: 0 0 0.65rem;
}

.footer-meta a {
  color: var(--cream);
}

.footer-meta a:hover {
  color: #fff;
}

.footer-cities {
  opacity: 0.75;
}

.site-footer em {
  font-style: italic;
  opacity: 0.8;
}

/* ——— Responsive ——— */
@media (max-width: 900px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .frame-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem 1.25rem 1.5rem;
    background: var(--cream);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0;
  }

  .site-nav li a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--line);
  }

  .lang-switch {
    margin-top: 1rem;
    align-self: flex-start;
  }

  .header-inner {
    position: relative;
  }

  .hero {
    padding-top: 3.5rem;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: none;
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}

/* ——— Legal / Privacy page ——— */
.legal-page {
  padding: 4rem 1.25rem 5rem;
}

.legal-page .section-inner {
  max-width: var(--narrow);
}

.legal-page .label {
  margin-bottom: 0.75rem;
}

.legal-page h1 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 500;
  line-height: 1.25;
  color: var(--green);
  letter-spacing: 0.02em;
}

html[lang="zh-Hant"] .legal-page h1 {
  font-family: var(--font-tc);
  letter-spacing: 0.04em;
  font-weight: 600;
}

.legal-updated {
  margin: 0 0 2rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.legal-page .prose {
  max-width: none;
}

.legal-page .prose > p {
  max-width: none;
}

.legal-page .prose h2 {
  margin: 2.25rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green);
}

html[lang="zh-Hant"] .legal-page .prose h2 {
  font-family: var(--font-tc);
  text-transform: none;
  letter-spacing: 0.08em;
  font-weight: 600;
  font-size: 1.2rem;
}

.legal-page .prose ul {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
  color: var(--ink);
  max-width: none;
}

.legal-page .prose li {
  margin-bottom: 0.4rem;
}

.legal-page .prose li::marker {
  color: var(--brass);
}

.legal-back {
  display: inline-block;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  color: var(--brass-text);
}

.site-footer a {
  color: inherit;
}

.site-footer a:hover {
  color: var(--cream);
}