:root {
  --bg: #0a0a0a;
  --bg-soft: #121212;
  --bg-card: #161616;
  --line: #222;
  --text: #f5f3ee;
  --text-dim: #999591;
  --text-faded: #5a5852;
  --accent: #e8ff5f;
  --accent-warm: #ff5a1f;
  --display: 'Fraunces', Georgia, serif;
  --body: 'Geist', -apple-system, sans-serif;
  --mono: 'JetBrains Mono', monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: var(--bg); color: var(--text);
  font-family: var(--body); font-weight: 300;
  font-size: 16px; line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
a { color: var(--accent); }
.container { max-width: 720px; margin: 0 auto; padding: 0 24px; }

nav {
  padding: 20px 32px;
  display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid var(--line);
}
.logo {
  font-family: var(--display); font-weight: 400; font-size: 20px;
  font-style: italic; text-decoration: none; color: var(--text);
}
.logo::after { content: '.'; color: var(--accent); font-style: normal; }
.nav-back {
  color: var(--text-dim); text-decoration: none; font-size: 14px;
}
.nav-back:hover { color: var(--text); }

main { padding: 48px 0 80px; }

.pack-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 32px;
  margin-bottom: 32px;
}
.pack-badge {
  font-family: var(--mono); font-size: 11px;
  color: var(--accent); text-transform: uppercase;
  letter-spacing: 0.15em; margin-bottom: 12px;
}
.pack-title {
  font-family: var(--display); font-style: italic;
  font-size: clamp(28px, 5vw, 40px); margin-bottom: 8px;
}
.pack-price {
  font-size: 48px; font-weight: 600; letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.pack-price span { font-size: 18px; color: var(--text-dim); font-weight: 400; }
.pack-features { list-style: none; margin: 20px 0 0; }
.pack-features li {
  padding: 8px 0; color: var(--text-dim);
  display: flex; gap: 10px; align-items: flex-start;
}
.pack-features li::before {
  content: '✓'; color: var(--accent); font-weight: 600;
}

.form-section h2 {
  font-size: 20px; font-weight: 600; margin-bottom: 20px;
}
.field { margin-bottom: 16px; }
.field label {
  display: block; font-size: 13px; color: var(--text-dim);
  margin-bottom: 6px;
}
.field input {
  width: 100%; padding: 14px 16px;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 12px; color: var(--text); font-size: 15px;
  font-family: var(--body);
}
.field input:focus {
  outline: none; border-color: var(--accent);
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .field-row { grid-template-columns: 1fr; } }

.payment-options {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  margin-top: 24px;
}
@media (max-width: 600px) { .payment-options { grid-template-columns: 1fr; } }
.payment-option {
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: 16px; padding: 24px; cursor: pointer;
  text-align: left; transition: border-color 0.2s;
}
.payment-option:hover { border-color: var(--accent); }
.payment-option h4 { font-size: 16px; margin-bottom: 8px; }
.payment-option p { font-size: 13px; color: var(--text-dim); margin-bottom: 16px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 24px; border-radius: 100px;
  font-weight: 600; font-size: 14px; border: none;
  cursor: pointer; text-decoration: none;
  transition: transform 0.2s;
}
.btn:hover { transform: scale(1.02); }
.btn-primary { background: var(--accent); color: var(--bg); }
.btn-secondary {
  background: transparent; color: var(--text);
  border: 1px solid var(--line);
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-block { width: 100%; }

.zelle-box {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 16px; padding: 24px; margin-top: 16px;
}
.zelle-amount { font-size: 36px; font-weight: 600; margin: 8px 0 16px; }
.zelle-detail { font-size: 14px; color: var(--text-dim); margin-bottom: 8px; }
.zelle-memo {
  background: var(--bg-card); padding: 12px 16px;
  border-radius: 10px; font-size: 14px; margin: 16px 0;
}

.step-hint { font-size: 13px; color: var(--text-dim); }
.error-text { color: #ff6b6b; font-size: 14px; margin-top: 12px; }

.screen { text-align: center; padding: 48px 0; }
.screen .big-ico { font-size: 48px; margin-bottom: 16px; }
.screen h2 { font-size: 28px; margin-bottom: 12px; }
.screen p { color: var(--text-dim); max-width: 480px; margin: 0 auto 20px; }

.panel { display: none; }
.panel.active { display: block; }

/* Upsells */
.upsells-section h2 { margin-bottom: 16px; }
.upsell-primary { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.upsell-card {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 14px 16px; border: 1px solid var(--line);
  border-radius: 12px; background: var(--bg-card);
  cursor: pointer; transition: border-color 0.2s;
}
.upsell-card:has(input:checked) { border-color: var(--accent); }
.upsell-card input { margin-top: 4px; flex-shrink: 0; accent-color: var(--accent); }
.upsell-body { flex: 1; min-width: 0; }
.upsell-top { display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; justify-content: space-between; margin-bottom: 4px; }
.upsell-label { font-size: 14px; font-weight: 600; color: var(--text); }
.upsell-price { font-family: var(--mono); font-size: 13px; color: var(--accent); }
.upsell-savings { font-size: 11px; font-weight: 600; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; }
.upsell-blurb { font-size: 13px; color: var(--text-dim); line-height: 1.45; margin: 0; }
.upsell-addons { display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }
.upsell-addons[hidden] { display: none; }
.upsell-total { font-size: 14px; color: var(--text-dim); margin-top: 16px; }
.upsell-total strong { color: var(--text); font-size: 18px; }

footer {
  text-align: center; padding: 32px;
  border-top: 1px solid var(--line);
  font-size: 13px; color: var(--text-faded);
}