:root {
  --bg-1: #060917;
  --bg-2: #111f44;
  --bg-3: #281944;
  --gold: #efc56a;
  --gold-soft: #ffe3a5;
  --text: #eef2ff;
  --muted: #c7d0e9;
  --card: rgba(10, 18, 42, 0.72);
  --border: rgba(255, 223, 154, 0.3);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  line-height: 1.65;
  background:
    radial-gradient(circle at 12% 20%, rgba(255, 214, 124, 0.18), transparent 32%),
    radial-gradient(circle at 88% 14%, rgba(123, 99, 255, 0.24), transparent 28%),
    radial-gradient(circle at 72% 82%, rgba(104, 176, 255, 0.16), transparent 30%),
    linear-gradient(145deg, var(--bg-1), var(--bg-2) 52%, var(--bg-3));
}

.page-wrap {
  width: min(1160px, 93%);
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.glass-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  backdrop-filter: blur(10px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.hero {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 1.35rem;
  margin-bottom: 1rem;
}

.logo {
  width: 76px;
  height: 76px;
  border-radius: 18px;
  object-fit: cover;
  border: 1px solid rgba(255, 223, 154, 0.42);
}

.hero-copy { min-width: 0; }
.eyebrow {
  margin: 0;
  color: var(--gold-soft);
  font-weight: 700;
  letter-spacing: 0.02em;
}

h1 { margin: 0.2rem 0 0.1rem; font-size: clamp(1.35rem, 2vw, 1.95rem); }
h2 { color: var(--gold-soft); margin: 1.15rem 0 0.45rem; font-size: 1.08rem; }
p, li { color: var(--text); }
a { color: var(--gold-soft); }
.updated { color: var(--muted); margin: 0; }

.lang-switch {
  margin-inline-start: auto;
  display: flex;
  gap: 0.52rem;
}

.lang-btn {
  border: 1px solid rgba(255, 223, 154, 0.42);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.03));
  color: var(--text);
  border-radius: 999px;
  padding: 0.5rem 1.05rem;
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), 0 8px 18px rgba(0, 0, 0, 0.22);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.lang-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), 0 12px 22px rgba(0, 0, 0, 0.3);
  border-color: rgba(255, 223, 154, 0.75);
}

.lang-btn.active {
  background: linear-gradient(135deg, rgba(239, 197, 106, 0.32), rgba(255, 227, 165, 0.2));
  color: var(--gold-soft);
}

.lang-btn:disabled {
  cursor: not-allowed;
  opacity: 0.96;
}

.content-card { padding: 1.35rem 1.45rem; }
.toc-card {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  padding: 0.85rem 0.95rem;
}

ol, ul { padding-inline-start: 1.2rem; margin: 0.2rem 0 0.2rem; }

.table-wrap {
  margin: 0.55rem 0 0.95rem;
  width: 100%;
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
}

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: rgba(255, 255, 255, 0.03);
}

th, td {
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  border-inline-end: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.56rem 0.58rem;
  vertical-align: top;
  text-align: start;
}

th:last-child,
td:last-child { border-inline-end: 0; }

th {
  background: rgba(255, 223, 154, 0.13);
  color: var(--gold-soft);
  font-weight: 700;
}

.hidden { display: none; }

@media (max-width: 920px) {
  .page-wrap { width: min(760px, 95%); padding-top: 1.25rem; }
  .hero { align-items: flex-start; flex-wrap: wrap; }
  .lang-switch { margin-inline-start: 0; }
  .content-card { padding: 1rem 1rem; }
}