.quickstart-shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(48px, 8vw, 88px) var(--space-5) var(--space-9);
}

.skip-link {
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 20;
  padding: var(--space-2) var(--space-3);
  color: white;
  background: var(--brand-navy);
  border-radius: var(--radius-sm);
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.quickstart-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(40px, 7vw, 88px);
  align-items: end;
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--brand-slate-200);
}

.quickstart-kicker,
.step-label,
.preview-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-slate-400);
}

.quickstart-hero h1 {
  margin: var(--space-4) 0 var(--space-5);
  max-width: 13ch;
  color: var(--brand-navy);
  font-size: clamp(42px, 6vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.quickstart-hero p {
  max-width: 580px;
  margin: 0;
  color: var(--brand-slate-600);
  font-size: 18px;
  line-height: 1.6;
}

.orientation {
  padding: var(--space-5);
  background: var(--brand-slate-50);
  border-left: 3px solid var(--brand-blue-500);
}

.orientation strong {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--brand-navy);
  font-size: 15px;
}

.orientation p,
.orientation a {
  font-size: 14px;
}

.orientation a { color: var(--brand-blue-700); }

.builder {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.72fr);
  gap: clamp(36px, 7vw, 80px);
  padding-top: var(--space-8);
}

.progress {
  height: 3px;
  background: var(--brand-slate-100);
  margin-bottom: var(--space-7);
  overflow: hidden;
}

.progress span {
  display: block;
  width: 25%;
  height: 100%;
  background: var(--brand-blue-500);
  transition: width 260ms var(--ease-out);
}

.quickstart-step[hidden],
.result-panel[hidden] { display: none; }

.quickstart-step h2,
.result-panel h2 {
  margin: var(--space-2) 0 var(--space-3);
  color: var(--brand-navy);
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.15;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.step-help {
  margin: 0 0 var(--space-6);
  max-width: 58ch;
  color: var(--brand-slate-600);
  font-size: 15px;
}

.field-label {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--brand-navy);
  font-size: 14px;
  font-weight: 600;
}

.text-input,
.email-input {
  width: 100%;
  padding: 14px 15px;
  color: var(--brand-navy);
  background: var(--brand-white);
  border: 1px solid var(--brand-slate-300);
  border-radius: var(--radius-md);
  font: inherit;
  font-size: 15px;
  transition: border-color 150ms var(--ease-out), box-shadow 150ms var(--ease-out);
}

.text-input:focus,
.email-input:focus {
  outline: none;
  border-color: var(--brand-blue-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.13);
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.choice {
  position: relative;
}

.choice input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.choice label {
  display: flex;
  min-height: 60px;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  color: var(--brand-slate-600);
  border: 1px solid var(--brand-slate-200);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 14px;
  line-height: 1.35;
  transition: transform 140ms var(--ease-out), border-color 140ms var(--ease-out), background 140ms var(--ease-out);
}

.choice label:hover {
  transform: translateY(-1px);
  border-color: var(--brand-slate-400);
}

.choice input:checked + label {
  color: var(--brand-navy);
  border-color: var(--brand-blue-500);
  background: #EFF6FF;
}

.choice input:focus-visible + label {
  outline: 3px solid rgba(59, 130, 246, 0.22);
  outline-offset: 2px;
}

.step-error {
  min-height: 24px;
  margin: var(--space-3) 0 0;
  color: #B42318;
  font-size: 13px;
}

.step-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.button {
  appearance: none;
  padding: 12px 18px;
  border: 0;
  border-radius: var(--radius-md);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 140ms var(--ease-out), background 140ms var(--ease-out), opacity 140ms var(--ease-out);
}

.button:active { transform: scale(0.98); }
.button:focus-visible { outline: 3px solid rgba(59, 130, 246, 0.25); outline-offset: 2px; }
.button-primary { color: white; background: var(--brand-navy); }
.button-primary:hover { background: #1E293B; }
.button-secondary { color: var(--brand-slate-600); background: var(--brand-slate-100); }
.button-secondary:hover { color: var(--brand-navy); background: var(--brand-slate-200); }
.button[disabled] { cursor: wait; opacity: 0.55; }

.live-preview {
  align-self: start;
  position: sticky;
  top: 92px;
  padding: var(--space-5);
  background: var(--brand-navy);
  border-radius: var(--radius-lg);
  color: var(--brand-slate-300);
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.16);
}

.live-preview .preview-label { color: var(--brand-blue-300); }
.live-preview h3 { margin: var(--space-3) 0 var(--space-4); color: white; font-size: 20px; }
.live-preview ul { margin: 0; padding: 0; list-style: none; }
.live-preview li { padding: 9px 0; border-bottom: 1px solid rgba(255,255,255,0.1); font-size: 13px; }
.live-preview li:last-child { border-bottom: 0; }
.live-preview .muted { color: var(--brand-slate-400); }

.email-gate {
  margin-top: var(--space-6);
  padding: var(--space-5);
  background: var(--brand-slate-50);
}

.email-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1fr);
  gap: var(--space-3);
}

.consent {
  margin: var(--space-3) 0 0;
  color: var(--brand-slate-400);
  font-size: 12px;
  line-height: 1.5;
}

.prompt-wrap {
  margin-top: var(--space-6);
}

.prompt-box {
  width: 100%;
  min-height: 360px;
  padding: var(--space-5);
  resize: vertical;
  color: #DCE6F3;
  background: #111C31;
  border: 0;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
}

.result-section {
  padding: var(--space-6) 0;
  border-top: 1px solid var(--brand-slate-200);
}

.result-section h3 { margin: 0 0 var(--space-4); color: var(--brand-navy); font-size: 18px; }
.checklist { padding: 0; list-style: none; }
.checklist li { position: relative; padding: 7px 0 7px 28px; font-size: 14px; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--brand-blue-700); font-weight: 700; }

.support-list { display: grid; gap: var(--space-4); }
.support-item h4 { margin: 0 0 var(--space-1); color: var(--brand-navy); font-size: 14px; }
.support-item p { margin: 0; font-size: 13px; }

.next-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); }
.next-links a { padding-top: var(--space-3); border-top: 2px solid var(--brand-slate-200); color: var(--brand-navy); text-decoration: none; font-size: 14px; font-weight: 600; }
.next-links a:hover { border-color: var(--brand-blue-500); }

@media (max-width: 780px) {
  .quickstart-shell { padding-left: var(--space-4); padding-right: var(--space-4); }
  .quickstart-hero, .builder { grid-template-columns: 1fr; }
  .quickstart-hero { align-items: start; }
  .live-preview { position: static; order: -1; }
  .choice-grid, .next-links { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .email-grid { grid-template-columns: 1fr; }
  .step-actions { align-items: stretch; flex-direction: column-reverse; }
  .step-actions .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}