:root {
  --bg: #0b0d14;
  --bg-alt: #10131d;
  --card: rgba(255, 255, 255, 0.03);
  --border: rgba(255, 255, 255, 0.08);
  --text: #e2e5f1;
  --text-dim: #94a0c2;
  --indigo: #818cf8;
  --violet: #c4b5fd;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN",
    "Yu Gothic", sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
}

h1,
h2,
h3 {
  font-weight: 800;
  line-height: 1.4;
}

.hero {
  background: radial-gradient(
      circle at 50% -10%,
      rgba(129, 140, 248, 0.18),
      transparent 60%
    ),
    var(--bg);
  padding-bottom: 5rem;
}

.nav {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
}

.brand img {
  border-radius: 6px;
}

.nav-cta {
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  text-decoration: none;
  white-space: nowrap;
}

.hero-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 1.25rem 0;
  text-align: center;
}

.hero-icon {
  border-radius: 22px;
  box-shadow: 0 20px 60px -20px rgba(129, 140, 248, 0.5);
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  margin: 0 0 1.25rem;
}

.hero-lead {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 2.25rem;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  color: #0b0d14;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1.05rem;
}

.section {
  max-width: 1000px;
  margin: 0 auto;
  padding: 5rem 1.25rem;
}

.section h2 {
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  text-align: center;
  margin: 0 0 3rem;
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-alt {
  background: var(--bg-alt);
  max-width: none;
}

.section-alt > * {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
}

.card-icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.card h3 {
  font-size: 1.05rem;
  margin: 0 0 0.6rem;
}

.card p {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin: 0;
}

.how-block {
  margin-bottom: 3rem;
}

.how-block:last-child {
  margin-bottom: 0;
}

.how-block h3 {
  font-size: 1.15rem;
  margin: 0 0 0.75rem;
  color: var(--violet);
}

.how-block p {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin: 0;
}

.cta-section {
  text-align: center;
}

.cta-section p {
  color: var(--text-dim);
  margin: 0 0 2rem;
}

.footer {
  text-align: center;
  padding: 3rem 1.25rem;
  color: var(--text-dim);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
}