:root {
  --bg: #060f1a;
  --panel: #122b45;
  --text: #eef7ff;
  --accent: #63d2a1;
  --accent-2: #74cfff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 0%, rgba(116, 207, 255, 0.28), transparent 42%),
    radial-gradient(circle at 88% 12%, rgba(99, 210, 161, 0.2), transparent 44%),
    linear-gradient(180deg, #0f2842 0%, var(--bg) 68%);
}

.hub {
  width: min(1100px, 94vw);
  margin: 30px auto;
}

.hero {
  margin-bottom: 16px;
  padding: 18px;
  border-radius: 14px;
  border: 1px solid rgba(149, 220, 255, 0.35);
  background: linear-gradient(145deg, rgba(18, 43, 69, 0.96), rgba(10, 25, 40, 0.95));
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.3);
}

.brand {
  margin: 0;
  color: #a8e7ff;
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 6px 0;
  font-size: clamp(2rem, 4vw, 3rem);
}

.tag {
  margin: 0;
  color: #d2e4ff;
  max-width: 68ch;
}

.about {
  margin: 0 0 16px;
  background: linear-gradient(180deg, rgba(18, 44, 71, 0.95), rgba(13, 31, 50, 0.95));
  border: 1px solid rgba(149, 220, 255, 0.35);
  border-radius: 12px;
  padding: 12px;
}

.about h2 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.about p {
  margin: 0;
  color: #d6e9ff;
  font-size: 0.92rem;
  line-height: 1.35;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}

.card {
  background: linear-gradient(180deg, rgba(17, 42, 67, 0.95), rgba(8, 21, 35, 0.96));
  border: 1px solid rgba(149, 220, 255, 0.35);
  border-radius: 12px;
  padding: 14px;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.28);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 34px rgba(0, 0, 0, 0.34);
  border-color: rgba(116, 207, 255, 0.55);
}

.card h2 {
  margin: 0 0 6px;
  font-size: 1.1rem;
}

.card p {
  margin: 0 0 10px;
  color: #d6e9ff;
  font-size: 0.93rem;
  line-height: 1.35;
}

.card a {
  display: inline-block;
  text-decoration: none;
  color: #042032;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 8px;
  padding: 8px 12px;
  font-weight: 700;
}

.card a:hover {
  filter: brightness(1.08);
}

.foot {
  margin-top: 18px;
  text-align: center;
  color: #adc9e6;
  font-size: 0.9rem;
}