/* Engine Builds root landing – Lantern Engine style */

:root {
  --bg-deep: #0a0e17;
  --bg-panel: #111827;
  --bg-panel-elevated: #1a2234;
  --bg-pill: #1e293b;
  --border-subtle: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --radius-sm: 8px;
  --radius-md: 12px;
  --shadow-panel: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Outfit", system-ui, sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  padding: 24px;
  line-height: 1.5;
}

@media (max-width: 720px) {
  body { padding: 16px; }
}
@media (max-width: 480px) {
  body { padding: 12px; }
}

.app {
  max-width: 960px;
  margin: 0 auto;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  color: #93c5fd;
  text-decoration: underline;
}

/* Brand header */
.brand {
  padding: 20px 0;
  margin-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-title {
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 4px 0;
  line-height: 1.2;
}

.brand-tagline {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin: 0;
}

@media (max-width: 480px) {
  .brand-title { font-size: 1.5rem; }
  .brand-tagline { font-size: 0.8125rem; }
}

/* Panel */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-panel);
}

@media (max-width: 720px) {
  .panel { padding: 20px; }
}
@media (max-width: 480px) {
  .panel { padding: 16px; }
}

.step-heading {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 8px 0;
  color: var(--text-primary);
}

.lead {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin: 0 0 24px 0;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  text-decoration: none;
}

@media (max-width: 480px) {
  .step-heading { font-size: 1.25rem; }
}

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.card {
  display: block;
  padding: 24px;
  background: var(--bg-panel-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color 0.2s, background 0.2s;
  text-decoration: none;
  color: inherit;
}

.card:hover {
  border-color: var(--accent);
  background: #1e293b;
  text-decoration: none;
  color: inherit;
}

.card--primary {
  border-color: rgba(59, 130, 246, 0.4);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.12) 0%, rgba(59, 130, 246, 0.04) 100%);
}

.card--primary:hover {
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.18) 0%, rgba(59, 130, 246, 0.08) 100%);
  text-decoration: none;
  color: inherit;
}

.card-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.card--primary .card-label {
  color: #93c5fd;
}

.card-title {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.card-desc {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* Other links */
.other-links {
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.other-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.other-links a {
  font-size: 0.875rem;
}

/* Footer */
.site-footer {
  margin-top: 28px;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--text-muted);
}