:root {
  --bg: #0f172a;        /* slate-900 */
  --card: #111827;      /* gray-900 */
  --text: #e5e7eb;      /* gray-200 */
  --muted: #9ca3af;     /* gray-400 */
  --accent: #60a5fa;    /* blue-400 */
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1000px 600px at 20% -10%, rgba(96,165,250,0.15), transparent),
              radial-gradient(800px 500px at 120% 10%, rgba(96,165,250,0.12), transparent),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
}

header {
  padding: 28px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.3px;
  font-size: 1.05rem;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px 64px;
  display: grid;
  gap: 24px;
}

.hero {
  background: linear-gradient(180deg, rgba(17,24,39,0.9), rgba(17,24,39,0.8));
  border: 1px solid rgba(148,163,184,0.15);
  border-radius: 20px;
  padding: 40px 28px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 2.4vw + 1rem, 2.6rem);
  line-height: 1.2;
  letter-spacing: 0.2px;
}

p {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 60px;
  color: var(--muted);
  font-size: 0.95rem;
}

.badge {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(96,165,250,0.12);
  color: var(--accent);
  border: 1px solid rgba(96,165,250,0.25);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

/* Navigation bar */
nav {
  display: flex;
  gap: 20px;
}

nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s;
}

nav a:hover {
  background: rgba(96,165,250,0.12);
  color: var(--accent);
}

nav a[aria-current="page"] {
  background: rgba(96,165,250,0.25);
  color: var(--accent);
  font-weight: 600;
}

/* Explore section links (home page) */
.links-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.links-list li {
  margin: 8px 0;
}

.links-list a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 10px;
  background: rgba(17,24,39,0.85); /* blends with hero cards */
  color: var(--text);
  text-decoration: none;
  border: 1px solid rgba(148,163,184,0.2);
  transition: background 0.2s, color 0.2s, border 0.2s;
}

.links-list a:hover {
  background: rgba(96,165,250,0.12);
  border-color: rgba(96,165,250,0.4);
  color: var(--accent);
}