:root {
  color-scheme: light dark;

  --bg: #FFFFFF;
  --surface: #F5F5F4;
  --text: #111111;
  --text-muted: #4D4D4D;
  --border: #E3E2E0;
  --ink: #000000;
  --accent: #9CA3A8;
  --focus: #000000;

  --font-display: "Century Gothic", "Avenir Next", Futura, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0B0B0B;
    --surface: #161616;
    --text: #F0F0EF;
    --text-muted: #ACACAA;
    --border: #2A2A2A;
    --ink: #FFFFFF;
    --accent: #C7CCCF;
    --focus: #FFFFFF;
  }
}

* { box-sizing: border-box; }

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
  margin: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  max-width: calc(100% - 2rem);
  top: -3rem;
  background: var(--ink);
  color: var(--bg);
  padding: 0.6rem 1rem;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  transition: top 0.15s ease;
  z-index: 20;
}
.skip-link:focus { top: 1rem; }

a {
  color: var(--text);
  text-underline-offset: 0.15em;
}
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.2;
  text-wrap: balance;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 1.5rem; }

/* Header and brand */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 1.2rem 0;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.wordmark {
  font-family: var(--font-display);
  overflow-wrap: anywhere;
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
}
.wordmark .mark {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
  text-decoration-color: var(--accent);
}
.wordmark:hover { text-decoration: none; }

.main-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
}
.main-nav a {
  display: inline-block;
  padding: 0.7rem 0;
  overflow-wrap: anywhere;
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--text);
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.lang-switch {
  display: inline-block;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.7rem;
  text-decoration: none;
  color: var(--text);
}
.lang-switch:hover { border-color: var(--text); text-decoration: none; }

/* First-visit language suggestion banner, shown only via script */
.lang-banner {
  display: none;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.lang-banner.is-visible { display: block; }
.lang-banner .wrap {
  padding: 0.7rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
}
.lang-banner button {
  font: inherit;
  color: var(--text);
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
}
.lang-banner button:hover { border-color: var(--text); }

/* Main content */
main { padding: 3rem 0 4rem; }
main .lede { color: var(--text-muted); font-size: 1.1rem; max-width: 42rem; }
main .prose { max-width: 42rem; }
main .prose p { margin: 0 0 1.1rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.4rem 1.6rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: 1.2rem;
  margin: 2rem 0;
}

.notice {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 10px;
  padding: 1.2rem 1.4rem;
  color: var(--text);
}

.portrait {
  display: block;
  width: 100%;
  max-width: 17rem;
  height: auto;
  margin: 1.2rem 0 1.6rem;
  border: 1px solid var(--border);
  border-radius: 8px;
}

footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  color: var(--text-muted);
  font-size: 0.88rem;
}
footer.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
footer.site-footer a { color: var(--text-muted); }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

/* Form controls: the browser defaults were 13px, fixed-width and stayed
   white in dark mode, so they are styled explicitly here. */
form p { margin: 0 0 1.2rem; }

label {
  display: inline-block;
  margin-bottom: 0.3rem;
  font-weight: 600;
}

input[type="text"],
input[type="email"],
select,
textarea {
  font: inherit;
  width: 100%;
  max-width: 32rem;
  min-height: 2.75rem;
  padding: 0.55rem 0.7rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--text-muted);
  border-radius: 6px;
}
textarea {
  min-height: 9rem;
  resize: vertical;
}

button[type="submit"] {
  font: inherit;
  min-height: 2.75rem;
  padding: 0.7rem 1.5rem;
  color: var(--bg);
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 6px;
  cursor: pointer;
}
button[type="submit"]:hover {
  background: var(--text-muted);
  border-color: var(--text-muted);
}

/* Narrow screens: stack the header instead of squeezing it into one row. */
@media (max-width: 40rem) {
  .wrap { padding: 0 1rem; }
  .site-header .wrap {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }
  .main-nav ul { gap: 0 1.2rem; }
  main { padding: 2rem 0 3rem; }
  footer.site-footer .wrap { flex-direction: column; gap: 0.4rem; }
}