/**
 * BAND9AI — conversion-focused design system (authority + clarity + action)
 * Single source of truth for tokens; pair with Inter via inter-system.css
 */
:root {
  --ds-primary: #2563eb;
  --ds-primary-hover: #1d4ed8;
  --ds-bg: #ffffff;
  --ds-bg-muted: #f8fafc;
  --ds-text: #0f172a;
  --ds-text-secondary: #475569;
  --ds-text-muted: #94a3b8;
  --ds-border: #e2e8f0;
  --ds-success: #16a34a;
  --ds-danger: #dc2626;
  --ds-accent: #7c3aed;

  --ds-space-1: 4px;
  --ds-space-2: 8px;
  --ds-space-3: 16px;
  --ds-space-4: 24px;
  --ds-space-5: 32px;
  --ds-space-6: 48px;
  --ds-space-7: 64px;
  --ds-space-8: 96px;

  --ds-radius-btn: 10px;
  --ds-radius-card: 12px;
  --ds-container: 1100px;

  --ds-shadow-card: 0 1px 3px rgba(15, 23, 42, 0.06);
}

/* Scoped page shell (marketing blocks) */
.ds-page {
  font-family: inherit;
  color: var(--ds-text);
  background: var(--ds-bg-muted);
  font-size: 16px;
  line-height: 1.5;
  font-weight: 400;
}

.ds-container {
  max-width: var(--ds-container);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--ds-space-4);
  padding-right: var(--ds-space-4);
}

.ds-section {
  padding-top: var(--ds-space-7);
  padding-bottom: var(--ds-space-7);
  background: var(--ds-bg);
  border-bottom: 1px solid var(--ds-border);
}

.ds-section--muted {
  background: var(--ds-bg-muted);
}

/* Hero: nav offset (~100px) + 96px top per spec */
.ds-hero {
  padding-top: calc(100px + var(--ds-space-8));
  padding-bottom: var(--ds-space-7);
  padding-left: var(--ds-space-4);
  padding-right: var(--ds-space-4);
  background: var(--ds-bg);
  border-bottom: 1px solid var(--ds-border);
}

.ds-h1 {
  font-size: clamp(2.5rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ds-text);
  margin: 0 0 var(--ds-space-3) 0;
}

.ds-h2 {
  font-size: clamp(1.75rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ds-text);
  margin: 0 0 var(--ds-space-3) 0;
}

.ds-h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ds-text);
  margin: 0 0 var(--ds-space-2) 0;
}

.ds-lead {
  font-size: 1.125rem;
  line-height: 1.5;
  color: var(--ds-text-secondary);
  margin: 0 0 var(--ds-space-4) 0;
}

.ds-body {
  font-size: 1rem;
  font-weight: 400;
  color: var(--ds-text);
  line-height: 1.5;
}

.ds-small {
  font-size: 14px;
  color: var(--ds-text-secondary);
  line-height: 1.5;
}

.ds-eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ds-primary);
  margin: 0 0 var(--ds-space-2) 0;
}

.ds-card {
  background: var(--ds-bg);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-card);
  padding: var(--ds-space-4);
}

.ds-card--featured {
  border: 2px solid var(--ds-primary);
  box-shadow: var(--ds-shadow-card);
}

.ds-list-check li::marker {
  color: var(--ds-success);
}

.ds-btn-primary {
  display: inline-block;
  box-sizing: border-box;
  background: var(--ds-primary);
  color: #ffffff;
  font-weight: 600;
  font-size: 16px;
  line-height: 1.25;
  padding: 14px 22px;
  border-radius: var(--ds-radius-btn);
  border: none;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease;
}

.ds-btn-primary:hover {
  background: var(--ds-primary-hover);
  color: #ffffff;
}

.ds-btn-primary:focus-visible {
  outline: 2px solid var(--ds-primary);
  outline-offset: 2px;
}

.ds-btn-secondary {
  display: inline-block;
  box-sizing: border-box;
  background: transparent;
  color: var(--ds-text);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.25;
  padding: 14px 22px;
  border-radius: var(--ds-radius-btn);
  border: 1px solid var(--ds-border);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.ds-btn-secondary:hover {
  border-color: #cbd5e1;
  background: var(--ds-bg-muted);
}

.ds-link {
  font-weight: 600;
  color: var(--ds-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.ds-link:hover {
  color: var(--ds-primary-hover);
}

/* Hero secondary action: text link without underline on narrow screens */
.ds-link-hero {
  font-weight: 600;
  color: var(--ds-primary);
  text-decoration: none;
  text-underline-offset: 3px;
}
@media (min-width: 640px) {
  .ds-link-hero {
    text-decoration: underline;
  }
}
.ds-link-hero:hover {
  color: var(--ds-primary-hover);
}

.ds-quote {
  border-left: 4px solid var(--ds-primary);
  padding-left: var(--ds-space-4);
  margin: 0;
}

.ds-border-callout {
  border-left: 4px solid var(--ds-primary);
  padding-left: var(--ds-space-3);
}

.ds-text-danger {
  color: var(--ds-danger);
}

.ds-text-success {
  color: var(--ds-success);
}

.ds-text-muted {
  color: var(--ds-text-muted);
}

.ds-muted-link {
  color: var(--ds-text-muted);
  text-decoration: none;
  font-size: 14px;
}
.ds-muted-link:hover {
  color: var(--ds-text-secondary);
}

/* Footer nav links (shared_footer) */
.footer-nav a {
  color: var(--ds-text-secondary);
  text-decoration: none;
}
.footer-nav a:hover {
  color: var(--ds-primary);
}

.ds-text-secondary {
  color: var(--ds-text-secondary);
}

.ds-input {
  width: 100%;
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-card);
  color: var(--ds-text);
  background: var(--ds-bg);
}
.ds-input:focus {
  outline: none;
  border-color: var(--ds-primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

/* Optional accent highlight (use sparingly) */
.ds-highlight {
  color: var(--ds-accent);
}