:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-2: #eef2f9;
  --text: #172033;
  --muted: #5c6983;
  --border: #d7deea;
  --brand: #2f6bff;
  --brand-strong: #174ad6;
  --shadow: 0 14px 40px rgba(19, 33, 68, 0.08);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1020;
  --surface: #111a32;
  --surface-2: #172543;
  --text: #e8edff;
  --muted: #afbddf;
  --border: #2b3c65;
  --brand: #6d98ff;
  --brand-strong: #4f7eff;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  background: radial-gradient(circle at top right, var(--surface-2), var(--bg) 30%);
  color: var(--text);
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(64rem, 92vw);
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
}

.nav {
  min-height: 4.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand img {
  width: 10rem;
  height: auto;
}

.button {
  border: 1px solid transparent;
  border-radius: 0.8rem;
  padding: 0.65rem 0.95rem;
  font-weight: 700;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}

.button.primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-strong));
  color: #fff;
}

.button.icon {
  width: 2.7rem;
  height: 2.7rem;
  padding: 0;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
}

.construction {
  flex: 1;
  display: grid;
  place-items: center;
  padding: 2.2rem 0;
}

.card {
  width: min(36rem, 100%);
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--surface);
  padding: 1.4rem;
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--brand);
  text-transform: uppercase;
  font-size: 0.84rem;
}

h1 {
  margin: 0.4rem 0 0.7rem;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
}

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

.actions {
  margin-top: 1.2rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1rem 0;
}

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

@media (max-width: 38rem) {
  .brand img {
    width: 8.7rem;
  }
}