:root {
  color-scheme: dark;
  --bg: #0f141c;
  --card: #1e2a3a;
  --card-hi: #24334a;
  --border: #34495e;
  --accent: #1abc9c;
  --accent-dark: #148f77;
  --danger: #e74c3c;
  --success: #2ecc71;
  --text: #e6edf3;
  --text-dim: #8b949e;
}
* { box-sizing: border-box; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  line-height: 1.55;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 24px;
}
nav .brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}
nav .links a {
  color: var(--text-dim);
  margin-left: 24px;
  font-size: 0.9rem;
}
nav .links a:hover { color: var(--accent); }

header.hero {
  max-width: 780px;
  margin: 0 auto;
  padding: 64px 24px 48px;
  text-align: center;
}
header.hero h1 {
  font-size: clamp(2rem, 5vw, 2.8rem);
  line-height: 1.15;
  margin: 0 0 16px;
}
header.hero p.lede {
  font-size: 1.15rem;
  color: var(--text-dim);
  margin: 0 auto 32px;
  max-width: 620px;
}
.cta-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.btn-primary {
  background: var(--accent);
  color: #0f141c;
}
.btn-primary:hover {
  background: var(--accent-dark);
  text-decoration: none;
}
.btn-primary:disabled {
  background: var(--border);
  color: var(--text-dim);
  cursor: not-allowed;
}
.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-secondary:hover {
  border-color: var(--accent);
  text-decoration: none;
}

section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 48px 24px;
}
section h2 {
  font-size: 1.8rem;
  text-align: center;
  margin: 0 0 8px;
}
section p.section-lede {
  text-align: center;
  color: var(--text-dim);
  max-width: 600px;
  margin: 0 auto 40px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.card {
  background: var(--card);
  border-radius: 12px;
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.04);
  position: relative;
}
.card .icon { font-size: 1.6rem; margin-bottom: 12px; }
.card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}
.card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.92rem;
}

.steps {
  counter-reset: step;
  display: grid;
  gap: 16px;
  max-width: 640px;
  margin: 0 auto 32px;
}
.step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.step-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #0f141c;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}
.step p {
  margin: 0;
  color: var(--text-dim);
}
.step strong { color: var(--text); }

.center { text-align: center; }

.panel {
  background: var(--card);
  border-radius: 16px;
  padding: 40px;
}
.panel ul {
  columns: 2;
  column-gap: 32px;
  padding-left: 20px;
  color: var(--text-dim);
}
.panel li { margin-bottom: 10px; break-inside: avoid; }
.panel li strong { color: var(--text); }

.badge {
  display: inline-block;
  background: rgba(26, 188, 156, 0.12);
  border: 1px solid rgba(26, 188, 156, 0.4);
  color: var(--accent);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.badge-corner {
  position: absolute;
  top: -10px;
  right: 16px;
  margin-bottom: 0;
}

.pricing-card {
  background: var(--card);
  border: 1px solid var(--accent);
  border-radius: 16px;
  padding: 40px;
  max-width: 420px;
  margin: 0 auto;
  text-align: center;
}
.pricing-card .price {
  font-size: 3rem;
  font-weight: 700;
  margin: 16px 0 4px;
}
.pricing-card .price small {
  font-size: 1rem;
  color: var(--text-dim);
  font-weight: 400;
}
.pricing-card ul {
  list-style: none;
  padding: 0;
  margin: 24px 0 32px;
  text-align: left;
  color: var(--text-dim);
  font-size: 0.92rem;
}
.pricing-card li {
  padding: 6px 0;
}
.pricing-card li::before {
  content: "✓ ";
  color: var(--accent);
  font-weight: 700;
}

.roadmap {
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  color: var(--text-dim);
  font-size: 0.9rem;
  text-align: center;
  max-width: 560px;
  margin: 40px auto 0;
}

footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: 40px;
  padding: 32px 24px 48px;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
}
footer a { color: var(--text-dim); }
footer a:hover { color: var(--accent); }
footer .footer-links { margin-bottom: 12px; }
footer .footer-links a { margin: 0 10px; }

/* Cart / success pages */
.cart-box {
  background: var(--card);
  border-radius: 16px;
  padding: 32px;
  max-width: 520px;
  margin: 0 auto;
}
.cart-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.cart-line .item-name { font-weight: 600; }
.cart-line .item-desc { color: var(--text-dim); font-size: 0.88rem; margin-top: 4px; }
.qty-input {
  width: 56px;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 0.95rem;
  text-align: center;
}
.cart-total {
  display: flex;
  justify-content: space-between;
  padding: 20px 0;
  font-size: 1.2rem;
  font-weight: 700;
}
.cart-error {
  color: var(--danger);
  font-size: 0.88rem;
  margin-top: 12px;
  min-height: 1.2em;
}
.cart-note {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: 16px;
}

@media (max-width: 640px) {
  .panel ul { columns: 1; }
}