:root {
  color-scheme: dark;
  --bg-top: #071c31;
  --bg-bottom: #19082f;
  --panel: rgba(255, 255, 255, 0.075);
  --panel-strong: rgba(255, 255, 255, 0.11);
  --line: rgba(104, 245, 212, 0.22);
  --text: #f8fbff;
  --muted: #b9bfd0;
  --mint: #64f3d2;
  --violet: #a36cff;
  --yellow: #ffd84c;
  --danger: #ff8797;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  min-height: 100vh;
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  line-height: 1.62;
  color: var(--text);
  background:
    radial-gradient(circle at 82% 4%, rgba(100, 243, 210, 0.15), transparent 31rem),
    radial-gradient(circle at 10% 90%, rgba(163, 108, 255, 0.14), transparent 30rem),
    linear-gradient(145deg, var(--bg-top), var(--bg-bottom));
  background-attachment: fixed;
}

a { color: var(--mint); }
a:hover { color: #a5ffeb; }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  color: #071c31;
  background: var(--mint);
  border-radius: 0.7rem;
  font-weight: 800;
}
.skip-link:focus { top: 1rem; }

.site-shell {
  width: min(100% - 2rem, 920px);
  margin: 0 auto;
  padding: 1.2rem 0 4rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0 1.4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 900;
  letter-spacing: -0.025em;
  font-size: 1.18rem;
}

.brand img {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  box-shadow: 0 0 26px rgba(100, 243, 210, 0.25);
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
}

.topnav a {
  padding: 0.55rem 0.78rem;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
}
.topnav a:hover,
.topnav a[aria-current="page"] {
  color: var(--text);
  background: var(--panel);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.8rem, 5vw, 3.4rem);
  border: 1px solid var(--line);
  border-radius: 30px;
  background: linear-gradient(145deg, rgba(255,255,255,0.10), rgba(255,255,255,0.045));
  box-shadow: var(--shadow);
}

.hero::after {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  right: -120px;
  bottom: -150px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(163, 108, 255, 0.34), transparent 68%);
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 0.55rem;
  color: var(--mint);
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.76rem;
}

h1, h2, h3 {
  line-height: 1.16;
  letter-spacing: -0.025em;
}

h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(2.15rem, 7vw, 4.2rem);
}

.hero p {
  max-width: 710px;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: clamp(1.02rem, 2.8vw, 1.22rem);
}

.language-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1.3rem 0 0;
}

.language-switcher button {
  appearance: none;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  padding: 0.58rem 0.83rem;
  color: var(--muted);
  background: rgba(255,255,255,0.045);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 800;
  cursor: pointer;
}

.language-switcher button:hover,
.language-switcher button[aria-pressed="true"] {
  color: #071c31;
  border-color: transparent;
  background: linear-gradient(90deg, var(--mint), #9bd5ff 58%, var(--violet));
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.card {
  padding: clamp(1.25rem, 3.4vw, 1.7rem);
  border: 1px solid rgba(255,255,255,0.085);
  border-radius: 23px;
  background: var(--panel);
  box-shadow: 0 15px 42px rgba(0,0,0,0.16);
}

.card.full { grid-column: 1 / -1; }
.card h2 { margin: 0 0 0.7rem; font-size: 1.32rem; }
.card h3 { margin: 1.15rem 0 0.35rem; font-size: 1.02rem; }
.card p { margin: 0.55rem 0; color: var(--muted); }
.card ul, .card ol { margin: 0.6rem 0 0; padding-left: 1.25rem; color: var(--muted); }
.card li + li { margin-top: 0.33rem; }
.card strong { color: var(--text); }

.icon-title {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.icon-bubble {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 50%;
  color: #061827;
  background: var(--mint);
  font-size: 1.12rem;
  font-weight: 900;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.1rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.72rem 1rem;
  border-radius: 14px;
  color: #071c31;
  text-decoration: none;
  font-weight: 900;
  background: linear-gradient(90deg, var(--mint), #a7d8ff 58%, var(--violet));
}
.button:hover { color: #071c31; filter: brightness(1.06); }
.button.secondary {
  color: var(--text);
  background: var(--panel-strong);
  border: 1px solid rgba(255,255,255,0.1);
}
.button.secondary:hover { color: var(--text); }

.notice {
  padding: 0.9rem 1rem;
  border-left: 4px solid var(--yellow);
  border-radius: 12px;
  color: var(--muted);
  background: rgba(255, 216, 76, 0.085);
}

.meta-list {
  display: grid;
  grid-template-columns: minmax(130px, 0.45fr) 1fr;
  gap: 0.55rem 1rem;
  margin: 0;
}
.meta-list dt { color: var(--muted); }
.meta-list dd { margin: 0; word-break: break-word; font-weight: 700; }

.policy-section { scroll-margin-top: 1rem; }
.policy-section + .policy-section {
  margin-top: 1.45rem;
  padding-top: 1.45rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.policy-section h2 { margin-bottom: 0.55rem; }

footer {
  margin-top: 1.4rem;
  padding: 1.3rem 0 0;
  color: var(--muted);
  font-size: 0.86rem;
  text-align: center;
}
footer a { color: var(--muted); }

[hidden] { display: none !important; }

@media (max-width: 720px) {
  .site-shell { width: min(100% - 1.1rem, 920px); }
  .topbar { align-items: flex-start; }
  .topnav { gap: 0.1rem; }
  .topnav a { padding: 0.45rem 0.58rem; }
  .content-grid { grid-template-columns: 1fr; }
  .card.full { grid-column: auto; }
  .meta-list { grid-template-columns: 1fr; gap: 0.15rem; }
  .meta-list dd + dt { margin-top: 0.65rem; }
}

@media print {
  :root { color-scheme: light; }
  body { color: #111; background: #fff; }
  .topbar, .language-switcher, .actions, footer { display: none; }
  .site-shell { width: 100%; padding: 0; }
  .hero, .card { box-shadow: none; border: 1px solid #bbb; background: #fff; }
  .hero p, .card p, .card li, .meta-list dt { color: #333; }
  a { color: #111; text-decoration: underline; }
}