/* Sikeva home - base styles. Mobile first, system font stack, CSS variables. */

:root {
  --bg: #ffffff;
  --fg: #1b1f23;
  --muted: #5b6570;
  --accent: #1f6feb;
  --border: #e3e6ea;
  --wrap: 68rem;
  --space: 1rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --fg: #e8eaed;
    --muted: #9aa4af;
    --accent: #6ea8fe;
    --border: #2a2f35;
  }
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 1rem/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--space);
}

/* Keyboard users must be able to jump past the header. */
.skip-link {
  position: absolute;
  left: -9999px;
}
.skip-link:focus {
  left: var(--space);
  top: var(--space);
  z-index: 10;
  padding: 0.5rem 0.75rem;
  background: var(--accent);
  color: #fff;
  border-radius: 0.25rem;
}

.site-header {
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space);
  padding-block: 0.75rem;
}

.brand {
  font-weight: 700;
  font-size: 1.125rem;
  color: inherit;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover, .nav a:focus-visible { color: var(--accent); }

main { padding-block: 2rem 3rem; }

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.875rem;
  padding-block: 1rem;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}