:root {
  --bg: #0e0f12;
  --bg-2: #14161b;
  --fg: #eaecef;
  --muted: #a8b1bb;
  --link: #53c7e9;
  --accent: #00b8d4;
  --card: #17191f;
  --border: #24272d;
  --radius: 16px;
  --pad: 20px;
  --gap: 16px;
  --shadow: 0 6px 30px rgba(0, 0, 0, .25);
  --sans: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f8fafc;
    --bg-2: #ffffff;
    --fg: #101418;
    --muted: #60666f;
    --link: #008fb1;
    --accent: #00acc1;
    --card: #ffffff;
    --border: #d6d9de;
    --shadow: 0 4px 18px rgba(0, 0, 0, .08);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  background: radial-gradient(900px 500px at 20% -10%, rgba(0, 184, 212, .06), transparent 60%),
    radial-gradient(900px 500px at 120% 10%, rgba(83, 199, 233, .06), transparent 60%),
    var(--bg);
  color: var(--fg);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background .4s ease, color .4s ease;
}

.wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 40px var(--pad) 70px;
}

header {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
}


h1 {
  margin: .2rem 0 .4rem;
  font-size: clamp(1.7rem, 3.5vw, 2.3rem);
}

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

nav {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

nav a {
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--fg);
  transition: all .25s ease;
  background: linear-gradient(180deg, var(--bg-2), transparent);
}

nav a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

main {
  display: grid;
  gap: 24px;
  margin-top: 22px;
}

section {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--card);
  box-shadow: var(--shadow);
  transition: background .3s ease, border-color .3s ease;
}

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

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  color: inherit;
  text-decoration: none;
  transition: all .3s ease;
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), transparent);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 4px 24px rgba(0, 184, 212, .25);
}

.card h3 {
  margin: 6px 0;
  font-weight: 600;
  text-align: center;
  /* 👉 zarovnání nadpisu na střed */
}

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

footer {
  margin-top: 26px;
  font-size: .95rem;
  color: var(--muted);
}

footer a:hover {
  color: var(--accent);
}

.avatar {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, .2);
}

header {
  display: flex;
  flex-direction: column;
  align-items: center;
  /* 👈 toto dělá centrování */
  text-align: center;
  gap: 10px;
}

.subtext {
  color: var(--muted);
  margin-top: -10px;
  margin-bottom: 10px;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  color: inherit;
  text-decoration: none;
  transition: all .3s ease;
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), transparent);
  text-align: center;
  /* ← TADY */
}

section a {
  color: var(--link);
  text-decoration: underline;
}

section a:hover {
  color: var(--accent);
}
