:root {
  color-scheme: light dark;
  --bg: #f5f5f5;
  --panel: #ffffff;
  --text: #141414;
  --muted: #5a5a5a;
  --line: #dddddd;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

body.theme-dark {
  --bg: #0f0f0f;
  --panel: #161616;
  --text: #f2f2f2;
  --muted: #c2c2c2;
  --line: #2a2a2a;
}

.container {
  width: min(760px, 92%);
  margin: 0 auto;
}

.center-screen {
  min-height: 100vh;
  display: grid;
  place-content: center;
  text-align: center;
  gap: 0.75rem;
}

.logo {
  width: min(250px, 45vw);
  height: auto;
  margin: 0 auto 0.5rem;
}

.logo.small {
  width: 80px;
  margin: 0;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
  color: var(--muted);
}

h1 {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 2.6rem);
}

.lead {
  margin: 0.3rem 0 1.1rem;
  color: var(--muted);
}

.nav {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.nav a {
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
}

.nav a.active,
.nav a:hover {
  background: var(--panel);
}

.top-bar {
  padding: 1rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: inherit;
  font-weight: 600;
}

.header-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
}

.lang-switch a {
  text-decoration: none;
  color: var(--muted);
}

.lang-switch a.active {
  color: var(--text);
  font-weight: 700;
}

.page {
  padding: 1rem 0 2rem;
}

.panel {
  margin-top: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
  background: var(--panel);
}