:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1d2a2b;
  --muted: #55686a;
  --brand: #0f3d3e;
  --brand-text: #ffffff;
  --brand-soft: #d7ebe6;
  --accent: #1f8a70;
  --line: #dfe6e4;
  --focus: #c46a00;
  --pill-bg: #e7f5f1;
  --pill-text: #0f5a4a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1a1b;
    --surface: #142526;
    --text: #e8efee;
    --muted: #9db3b1;
    --brand: #0a2d2e;
    --accent: #43c2a3;
    --line: #274042;
    --focus: #ffb454;
    --pill-bg: #17423a;
    --pill-text: #aee9d9;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Arabic", "Noto Sans JP", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, summary:focus-visible, button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 4px;
}
.wrap { width: min(1040px, 100% - 32px); margin-inline: auto; }
.skip {
  position: absolute;
  inset-inline-start: -9999px;
  background: #fff;
  color: #000;
  padding: 8px 12px;
}
.skip:focus { inset-inline-start: 8px; top: 8px; z-index: 10; }

/* Header */
header.site { background: var(--brand); color: var(--brand-text); }
header.site .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
  padding-block: 14px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: #ffffff;
  text-decoration: none;
}
.logo svg { width: 32px; height: 32px; flex: none; }
nav.main { display: flex; flex-wrap: wrap; gap: 4px 18px; }
nav.main a { color: var(--brand-soft); text-decoration: none; font-size: 0.93rem; padding: 4px 0; }
nav.main a:hover, nav.main a[aria-current="page"] { color: #ffffff; text-decoration: underline; }
.head-right { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

/* Language picker (no JavaScript) */
details.lang { position: relative; }
details.lang summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  padding: 5px 12px;
  font-size: 0.93rem;
}
details.lang summary::-webkit-details-marker { display: none; }
details.lang summary svg { width: 18px; height: 18px; }
details.lang ul {
  position: absolute;
  inset-inline-end: 0;
  z-index: 20;
  margin: 6px 0 0;
  padding: 6px;
  list-style: none;
  min-width: 180px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}
details.lang li a {
  display: block;
  padding: 7px 12px;
  border-radius: 6px;
  color: var(--text);
  text-decoration: none;
}
details.lang li a:hover { background: var(--pill-bg); }
details.lang li a[aria-current="true"] { font-weight: 700; color: var(--accent); }

/* Hero */
.hero { background: var(--brand); color: var(--brand-text); padding: 52px 0 68px; }
.hero h1 { font-size: clamp(1.9rem, 5vw, 3rem); line-height: 1.15; margin: 0 0 16px; max-width: 20ch; }
.hero p { max-width: 60ch; margin: 0 0 26px; font-size: 1.1rem; color: var(--brand-soft); }
.hero .lead-pill { margin-bottom: 18px; }
.btn {
  display: inline-block;
  background: #ffffff;
  color: var(--brand);
  font-weight: 700;
  padding: 12px 22px;
  border-radius: 8px;
  text-decoration: none;
  margin-inline-end: 10px;
  margin-bottom: 10px;
}
.btn:hover { background: #e7f5f1; }
.btn.ghost { background: transparent; color: #ffffff; border: 1px solid rgba(255, 255, 255, 0.6); }
.btn.ghost:hover { background: rgba(255, 255, 255, 0.12); }
.btn.solid { background: var(--accent); color: #ffffff; }
.btn.solid:hover { filter: brightness(1.08); }

.pill {
  display: inline-block;
  background: var(--pill-bg);
  color: var(--pill-text);
  border-radius: 999px;
  padding: 3px 12px;
  font-size: 0.85rem;
  font-weight: 600;
}
.hero .pill { background: rgba(255, 255, 255, 0.16); color: #ffffff; }

section { padding: 54px 0; }
section h2 { font-size: 1.6rem; margin: 0 0 8px; }
.lead { color: var(--muted); margin: 0 0 30px; max-width: 66ch; }

/* Cards */
.cards { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.card .icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--brand);
  color: #ffffff;
  display: grid;
  place-items: center;
}
.card .icon svg { width: 24px; height: 24px; }
.card h3 { margin: 4px 0 0; font-size: 1.15rem; }
.card p { margin: 0; color: var(--muted); }
.card .more { margin-top: auto; font-weight: 600; }
.card.plain { gap: 6px; }
.card.plain h3 { margin-top: 0; }

.band { background: var(--surface); border-block: 1px solid var(--line); }
.band p { max-width: 70ch; margin: 0 0 14px; }
.cta-band { background: var(--brand); color: var(--brand-text); }
.cta-band p { color: var(--brand-soft); max-width: 62ch; }
.cta-band small { display: block; color: var(--brand-soft); opacity: 0.85; }

.meta-row { display: grid; gap: 6px 24px; grid-template-columns: max-content 1fr; margin: 0; }
.meta-row dt { font-weight: 700; }
.meta-row dd { margin: 0; }
address { font-style: normal; }

.roadmap { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.roadmap li { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; }
.roadmap strong { display: block; color: var(--accent); }

.crumbs { margin: 0 0 18px; }
.crumbs a { color: var(--brand-soft); }

footer.site { padding: 28px 0 40px; color: var(--muted); font-size: 0.92rem; border-top: 1px solid var(--line); }
footer.site p { margin: 0 0 8px; }

@media (max-width: 600px) {
  .meta-row { grid-template-columns: 1fr; gap: 2px; }
  .meta-row dd { margin-bottom: 12px; }
  header.site .wrap { align-items: flex-start; }
  nav.main { order: 3; width: 100%; }
  details.lang ul { inset-inline-end: auto; inset-inline-start: 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}