:root {
  --bg: #0a0a0c;
  --surface: #131318;
  --surface-2: #1a1a22;
  --border: #2a2a36;
  --text: #ededf2;
  --muted: #9b9bab;
  --accent: #4ade80;
  --accent-strong: #22c55e;
  --warn: #f59e0b;
  --red: #f87171;
  --emerald: #10b981;
  --font-sans: "Outfit", system-ui, sans-serif;
  --font-serif: "Fraunces", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  min-height: 100vh;
}
.hidden { display: none !important; }

.topbar { border-bottom: 1px solid var(--border); }
.topbar-inner {
  max-width: 1080px; margin: 0 auto; padding: 16px 24px;
  display: flex; align-items: center;
}
.logo { color: var(--text); text-decoration: none; font-weight: 500; display: flex; gap: 10px; align-items: center; }
.logo-icon { font-size: 20px; }
.logo-api { color: var(--muted); font-weight: 400; }

.page { max-width: 1080px; margin: 0 auto; padding: 48px 24px; }
.state.hidden { display: none; }
.state:not(.hidden) { display: block; }

.layout {
  display: grid; gap: 32px;
  grid-template-columns: 1fr 1.2fr;
}
@media (max-width: 760px) { .layout { grid-template-columns: 1fr; } }

.plan-summary {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
}
.plan-tag {
  display: inline-block;
  font-size: 11px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border); border-radius: 100px;
  padding: 4px 10px;
  margin-bottom: 16px;
}
.plan-name {
  font-family: var(--font-serif); font-weight: 400;
  font-size: 32px; margin: 0 0 8px;
}
.plan-price { color: var(--muted); font-size: 18px; margin-bottom: 24px; }
.plan-features { list-style: none; padding: 0; margin: 0; }
.plan-features li { padding: 8px 0; color: var(--text); font-size: 14px; }
.plan-features li::before { content: "✓ "; color: var(--accent); margin-right: 4px; }

.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
}
.form-card h2 {
  font-family: var(--font-serif); font-weight: 400; font-size: 28px; margin: 0 0 8px;
}
.form-desc { color: var(--muted); margin: 0 0 20px; }
.banner { padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; font-size: 14px; }
.banner-warn { background: rgba(245, 158, 11, 0.12); border: 1px solid rgba(245, 158, 11, 0.4); color: #fbbf24; }
form { display: flex; flex-direction: column; gap: 14px; }
input[type="email"] {
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 16px; font-size: 15px; font-family: inherit;
  outline: none;
}
input[type="email"]:focus { border-color: var(--accent); }
.primary-btn {
  background: var(--accent); color: #0a0a0c;
  border: none; border-radius: 10px;
  padding: 14px 20px; font-size: 15px; font-weight: 500; font-family: inherit;
  cursor: pointer;
  text-decoration: none; text-align: center;
  display: inline-block;
}
.primary-btn:hover { background: var(--accent-strong); }
.primary-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.error-msg { color: var(--red); font-size: 13px; min-height: 18px; }
.opt-in { display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font-size: 13px; line-height: 1.4; cursor: pointer; }
.opt-in input { margin-top: 2px; accent-color: var(--accent); }
.legal { color: var(--muted); font-size: 12px; margin-top: 16px; }
.legal a { color: var(--muted); text-decoration: underline; }

.card-narrow {
  max-width: 560px; margin: 60px auto; text-align: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 40px 32px;
}
.spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; margin: 0 auto 16px;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.welcome-card {
  max-width: 640px; margin: 40px auto;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 40px 32px;
}
.welcome-check {
  width: 56px; height: 56px; margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(74, 222, 128, 0.16); color: var(--accent);
  border-radius: 50%; font-size: 28px;
}
.welcome-card h1 {
  font-family: var(--font-serif); font-weight: 400;
  font-size: 32px; text-align: center; margin: 0 0 8px;
}
.welcome-sub { color: var(--muted); text-align: center; margin: 0 0 28px; }
.key-block, .quickstart { margin-bottom: 24px; }
.key-label, .quickstart-label {
  font-size: 11px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 8px;
}
.key-row, .quickstart-row {
  display: flex; gap: 8px; align-items: stretch;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 8px 8px 8px 14px;
}
.key-row code, .quickstart-row pre {
  flex: 1; margin: 0;
  font-family: var(--font-mono); font-size: 13px; color: var(--text);
  background: transparent; padding: 6px 0;
  word-break: break-all; white-space: pre-wrap;
}
.copy-btn {
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 14px; font-size: 13px; font-family: inherit;
  cursor: pointer;
}
.copy-btn:hover { border-color: var(--accent); }
.copy-btn.copied { background: var(--accent); color: #0a0a0c; border-color: var(--accent); }
.email-note { color: var(--muted); text-align: center; font-size: 14px; margin: 8px 0 24px; }
.welcome-cta { display: flex; gap: 16px; justify-content: center; align-items: center; flex-wrap: wrap; }
.secondary-link { color: var(--muted); text-decoration: underline; font-size: 14px; }