:root {
  --bg: #F7F6F1;
  --bg-alt: #FFFFFF;
  --surface: #FFFFFF;
  --ink: #16150F;
  --ink-soft: #58554A;
  --primary: #121110;
  --primary-dark: #000000;
  --accent: #F2B705;
  --accent-dark: #C99400;
  --accent-soft: #FBE29A;
  --line: #E4E1D6;
  --radius: 8px;
  --wrap: 1120px;
  --danger: #C0392B;
  --danger-bg: #FBEAE8;
  --success: #1E7A46;
  --success-bg: #E9F6EE;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

h1, h2, h3 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 8px;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 18px;
  color: var(--primary-dark);
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--primary-dark);
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
}

.dot { color: var(--accent-dark); }

.header-tag {
  font-size: 13px;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--bg);
}

.page {
  padding: 48px 24px 96px;
  max-width: 720px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 16px;
}

.eyebrow-bar {
  display: inline-block;
  width: 28px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

.intro h1 {
  font-size: 34px;
  margin-bottom: 12px;
}

.lead {
  color: var(--ink-soft);
  font-size: 17px;
  max-width: 560px;
  margin-bottom: 24px;
}

.feature-checklist {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-checklist li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 15px;
}

.check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 700;
  font-size: 13px;
}

.btn {
  font-family: "IBM Plex Sans", sans-serif;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 26px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.05s ease, opacity 0.15s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
}

.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }

.btn-primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn-outline:hover { border-color: var(--ink-soft); }

.hidden { display: none !important; }

.steps {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  gap: 8px;
}

.step {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--radius);
  background: var(--bg-alt);
  border: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 600;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--line);
  color: var(--ink-soft);
  font-size: 12px;
}

.step.active {
  border-color: var(--accent);
  color: var(--ink);
  background: var(--accent-soft);
}

.step.active .step-num {
  background: var(--accent);
  color: var(--primary-dark);
}

.step.done .step-num {
  background: var(--success);
  color: #fff;
}

.step.done { color: var(--ink); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 1px 2px rgba(22, 21, 15, 0.04);
}

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

.panel-sub {
  color: var(--ink-soft);
  font-size: 14px;
  margin-bottom: 24px;
}

.optional-tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-soft);
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 2px 8px;
  border-radius: 999px;
  vertical-align: middle;
  margin-left: 8px;
}

.field {
  display: block;
  margin-bottom: 18px;
}

.field-row {
  display: flex;
  gap: 12px;
}

.field-row .field { flex: 1; }
.field-small { max-width: 140px; }

.field-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

input[type="text"], input[type="email"], input[type="password"] {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-alt);
  color: var(--ink);
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 15px;
}

input:focus {
  outline: none;
  border-color: var(--accent-dark);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

input.invalid {
  border-color: var(--danger);
  background: var(--danger-bg);
}

.field-error {
  display: block;
  min-height: 18px;
  color: var(--danger);
  font-size: 13px;
  margin-top: 6px;
  font-weight: 500;
}

.radio-row {
  display: flex;
  gap: 10px;
}

.radio-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-alt);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}

.radio-pill:has(input:checked) {
  border-color: var(--accent-dark);
  background: var(--accent-soft);
}

.actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 28px;
}

.server-error {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: var(--danger-bg);
  border: 1px solid #E8B4AC;
  color: var(--danger);
  padding: 14px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 24px;
}

.server-error .icon { font-weight: 700; }

.server-error ul { margin: 4px 0 0; padding-left: 18px; }

.review-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 8px;
}

.review-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  background: var(--bg);
}

.review-item .k {
  display: block;
  font-size: 12px;
  color: var(--ink-soft);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.review-item .v {
  font-size: 15px;
  color: var(--ink);
  font-weight: 500;
  word-break: break-word;
}

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.result {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.result-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 26px;
  font-weight: 700;
}

.result-icon.success {
  background: var(--success-bg);
  color: var(--success);
}

.token-box {
  text-align: left;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 20px 0;
}

.token-box code {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--ink-soft);
  word-break: break-all;
  font-family: "Courier New", monospace;
}

@media (max-width: 640px) {
  .review-grid { grid-template-columns: 1fr; }
  .field-row { flex-direction: column; }
  .field-small { max-width: none; }
  .steps { flex-wrap: wrap; }
}