:root {
  --bg: #0f172a;
  --bg-alt: #020617;
  --card: #020617;
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.15);
  --text: #e5e7eb;
  --muted: #9ca3af;
  --border: #1f2937;
  --danger: #f97373;
  --ok: #4ade80;
  --code-bg: #020617;
  --radius: 12px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.9);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #1e293b 0, #020617 55%, #000 100%);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 16px;
}

.container {
  width: 100%;
  max-width: 800px;
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.98), rgba(2, 6, 23, 0.98));
  border-radius: 24px;
  border: 1px solid rgba(148, 163, 184, 0.15);
  box-shadow: var(--shadow-soft);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
}

.glow {
  position: absolute;
  inset: -40%;
  background:
    radial-gradient(circle at 10% 0%, rgba(56, 189, 248, 0.12), transparent 55%),
    radial-gradient(circle at 90% 0%, rgba(52, 211, 153, 0.12), transparent 55%);
  opacity: 0.9;
  pointer-events: none;
  z-index: 0;
}

.content {
  position: relative;
  z-index: 1;
}

header {
  margin-bottom: 24px;
  text-align: center;
}

h1 {
  margin: 0;
  font-size: clamp(1.7rem, 5vw, 2.5rem);
  letter-spacing: 0.03em;
  color: var(--text);
}

.intro {
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: 2rem;
  text-align: center;
}

.links-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.link-card {
  background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.98));
  border-radius: var(--radius);
  border: 1px solid rgba(148, 163, 184, 0.2);
  padding: 20px;
  text-decoration: none;
  color: var(--accent);
  font-weight: bold;
  text-align: center;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.link-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  background: rgba(56, 189, 248, 0.05);
}

footer {
  margin-top: 2rem;
  padding: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 600px) {
  .container {
    padding: 24px 18px;
  }
}