:root {
  --bg: #0f1218;
  --panel: #181c24;
  --text: #eef1f6;
  --muted: #9aa3b2;
  --line: rgba(238, 241, 246, 0.12);
  --font: "Manrope", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100svh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(80% 60% at 10% -10%, rgba(59, 130, 246, 0.18), transparent 55%),
    radial-gradient(70% 50% at 100% 0%, rgba(212, 255, 0, 0.08), transparent 45%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}

.portal {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 4rem 0 3.5rem;
}

.portal-head {
  max-width: 38rem;
  margin-bottom: 2.75rem;
}

.portal-kicker {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.portal-head h1 {
  margin: 0 0 0.85rem;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.portal-lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.15rem;
}

.choice {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.5rem 1.4rem 1.6rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 1rem;
  text-decoration: none;
  color: inherit;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.choice:hover {
  transform: translateY(-4px);
  border-color: rgba(238, 241, 246, 0.28);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.choice-swatches {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
}

.choice-swatches i {
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.choice-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.choice h2 {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}

.choice p {
  margin: 0;
  flex: 1;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.choice-cta {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  font-weight: 700;
}

.choice-studio .choice-cta { color: #7eb6ff; }
.choice-voltage .choice-cta { color: #d4ff00; }
.choice-trail .choice-cta { color: #c4a35a; }

.portal-note {
  margin: 2.5rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

@media (max-width: 900px) {
  .portal-grid {
    grid-template-columns: 1fr;
  }
}