/* ─── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:         #0d0d10;
  --surface:    #16161a;
  --border:     #252530;
  --border-hover: #3a3a50;
  --text:       #efefef;
  --muted:      #7a7a90;
  --accent:     #7b8cff;
  --accent-dim: #3a4280;
  --font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --radius: 12px;
  --transition: 180ms ease;
}

html {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ─── Layout ────────────────────────────────────────────────────────────────── */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  gap: 3rem;
}

/* ─── Hero ──────────────────────────────────────────────────────────────────── */
.hero {
  text-align: center;
  max-width: 560px;
}

.wordmark {
  font-size: clamp(2.8rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #fff 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.tagline {
  color: var(--muted);
  font-size: 1rem;
  max-width: 38ch;
  margin: 0 auto;
}

/* ─── Cards ─────────────────────────────────────────────────────────────────── */
.cards {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  width: 100%;
  max-width: 680px;
}

.card {
  flex: 1 1 180px;
  max-width: 220px;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 60% 0%, var(--accent-dim) 0%, transparent 65%);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover,
.card:focus-visible {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  outline: none;
}

.card:hover::before,
.card:focus-visible::before {
  opacity: 1;
}

.card-domain {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  position: relative;
}

.card-label {
  font-size: 0.78rem;
  color: var(--muted);
  position: relative;
}

.card-arrow {
  position: absolute;
  bottom: 1.1rem;
  right: 1.25rem;
  font-size: 1rem;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--transition), transform var(--transition);
}

.card:hover .card-arrow,
.card:focus-visible .card-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ─── Footer ────────────────────────────────────────────────────────────────── */
footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

/* ─── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .cards {
    flex-direction: column;
    align-items: center;
  }

  .card {
    width: 100%;
    max-width: 100%;
    flex: none;
  }
}

/* ─── Reduced motion ─────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
  }
}