:root {
  --bg: #0b0f17;
  --card: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --link: #93c5fd;
  --border: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  padding: 0;
  margin: 0;
}

body {
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: rgba(11, 15, 23, 0.7);
  border-bottom: 1px solid var(--border);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo {
  width: 22px;
  height: 22px;
}

.brandName {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.nav .sep {
  color: var(--muted);
}

.nav a {
  font-size: 14px;
  color: var(--muted);
}

.nav a.active {
  color: var(--text);
  font-weight: 600;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 22px 16px 40px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px 18px;
}

h1 {
  margin: 0 0 10px;
  font-size: 28px;
}

.muted {
  color: var(--muted);
}

.content {
  margin-top: 18px;
  line-height: 1.6;
}

.content h2 {
  margin-top: 22px;
}

.content ul {
  padding-left: 18px;
}

.content li {
  margin: 6px 0;
}

.footer {
  margin-top: 18px;
  padding: 10px 4px;
  border-top: 1px solid var(--border);
}

.langMenu {
  position: relative;
  display: inline-block;
}

.langMenu {
  position: relative;
  display: inline-block;
}

/* IMPORTANT: target summary inside details directly (best for iOS Safari) */
.langMenu > summary {
  list-style: none;          /* Firefox */
  cursor: pointer;
  user-select: none;

  /* Prevent the default "list-item" behavior that may show a marker */
  display: inline-flex;
  align-items: center;
  gap: 6px;

  /* extra safety for some mobile browsers */
  appearance: none;
  -webkit-appearance: none;
}

/* iOS Safari / WebKit marker */
.langMenu > summary::-webkit-details-marker {
  display: none;
}

/* Chrome/Firefox marker */
.langMenu > summary::marker {
  content: "";
}

/* Optional: rotate YOUR chevron */
.langChevron {
  transition: transform 160ms ease;
}

.langMenu[open] .langChevron {
  transform: rotate(180deg);
}

/* Optional: rotate YOUR chevron when open */
.langChevron {
  transition: transform 160ms ease;
}

.langMenu[open] .langChevron {
  transform: rotate(180deg);
}

/* Ensure dropdown stays vertical (and doesn't inherit nav layout weirdness) */
.langDropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  min-width: 160px;
  z-index: 50;

  display: flex;
  flex-direction: column;
  gap: 6px;

  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 10px;
  padding: 6px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}


.langDropdown a {
  display: block;
  padding: 10px 10px;
  border-radius: 8px;
  text-decoration: none;
  white-space: nowrap;
}

.langDropdown a.active {
  font-weight: 600;
}

.langDropdown a:hover {
  background: rgba(0, 0, 0, 0.04);
}

@media (max-width: 420px) {
  .brandName {
    display: none;
  }

  .nav {
    gap: 10px;
  }

  .header {
    padding: 12px 14px;
  }
}