:root {
  --bg: #0f172a;
  --panel: #111827;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --border: #1f2937;
  --site-footer-height: 3.5rem;
}

* {
  box-sizing: border-box;
}

html {
  height: 100%;
}

body {
  margin: 0;
  min-height: 100%;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a,
a:hover,
a:focus-visible,
a:visited,
a:active {
  color: var(--accent);
  text-decoration: none;
}

.container {
  width: min(980px, 92vw);
  margin: 0 auto;
}

.site-header {
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
  padding: 0.8rem 0;
}

main.container,
main#main-content.container {
  flex: 1 1 auto;
  min-height: 0;
  padding-bottom: 1.25rem;
}

.site-header .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
}

.site-header .nav-list {
  margin-top: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.site-footer {
  flex-shrink: 0;
  height: var(--site-footer-height);
  min-height: var(--site-footer-height);
  margin-top: 0;
  padding: 0;
  border-top: 1px solid var(--border);
  border-bottom: 0;
  display: flex;
  align-items: center;
}

.site-footer p {
  margin: 0;
}

.logo {
  margin: 0;
  font-size: 1.3rem;
}

.logo a {
  color: inherit;
}

.logo a:hover,
.logo a:focus-visible {
  color: var(--accent);
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.github-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.4rem;
  height: 1.4rem;
  color: var(--text);
}

.github-link:hover,
.github-link:focus-visible {
  color: var(--accent);
}

.github-link svg {
  width: 1.2rem;
  height: 1.2rem;
}

.lang-switcher select {
  margin-top: 0;
  padding: 0.25rem 0.45rem;
  font-size: 0.85rem;
  min-width: 3.8rem;
}

.hero {
  margin: 1.2rem 0;
}

.card-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.2rem;
}

.table-wrap {
  overflow-x: auto;
}

.xp-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
}

.xp-table th,
.xp-table td {
  padding: 0.5rem 0.65rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.xp-table thead th {
  color: #bfdbfe;
  font-weight: 600;
}

.form-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}


label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

input,
select,
button {
  border-radius: 8px;
  border: 1px solid var(--border);
  padding: 0.55rem 0.7rem;
  background: #020617;
  color: var(--text);
}

button {
  margin-top: 0.8rem;
  cursor: pointer;
}

.checkbox {
  flex-direction: row;
  align-items: center;
}

#xp-form {
  align-items: end;
}

#xp-form .checkbox {
  padding-bottom: 0.55rem;
  gap: 0.4rem;
}

#xp-form .checkbox input {
  margin: 0;
}

.breadcrumb,
.hint {
  color: var(--muted);
}

main.container > section {
  margin-top: 1.3rem;
}

main.container > section:first-of-type {
  margin-top: 0.8rem;
}

main.container h2 {
  margin: 0 0 0.75rem;
}

main.container h3 {
  margin: 0.6rem 0 0.7rem;
}


.skip-link {
  position: absolute;
  left: -999px;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  background: #fff;
  color: #000;
  padding: 0.5rem;
}

@media (max-width: 640px) {
  .logo {
    font-size: 1.1rem;
  }
}