/* ============================================================
   The Age of the AI Builder — section styles
   Loaded async by sections/06-ai-builder.php only.
   Reuses AINNA design tokens (--ainna-*) + .feature-card base
   from the homepage bundle; scoped under .ai-builder-section.
   ============================================================ */

.ai-builder-section {
  padding: 56px 0;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}
[data-theme="dark"] .ai-builder-section {
  background: linear-gradient(180deg, #0f172a 0%, #111c33 100%);
}

/* ---- Header ---- */
.ai-builder-head { margin-bottom: 28px; text-align: center; }
.ai-builder-intro {
  max-width: 640px;
  margin: 12px auto 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ai-builder-intro p { margin: 0; color: #475569; font-size: 15px; line-height: 1.6; }
.ai-builder-intro strong { color: #0f172a; font-weight: 700; }
[data-theme="dark"] .ai-builder-intro p { color: #cbd5e1; }
[data-theme="dark"] .ai-builder-intro strong { color: #f1f5f9; }

/* ---- Flow: personas → AI Builder → outputs ---- */
.ai-builder-flow {
  position: relative;
  max-width: 1040px;
  margin: 0 auto 40px;
  padding: 24px 18px 20px;
  border: 1px solid var(--ainna-border);
  border-radius: var(--ainna-radius-card);
  background:
    linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px),
    var(--ainna-bg);
  background-size: 40px 40px, 40px 40px, auto;
  overflow: hidden;
}
[data-theme="dark"] .ai-builder-flow {
  background:
    linear-gradient(rgba(148, 163, 184, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.08) 1px, transparent 1px),
    var(--ainna-bg-alt);
  background-size: 40px 40px, 40px 40px, auto;
}

.ai-builder-personas {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.ai-builder-persona {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  padding: 16px 12px 14px;
  background: #fff;
  border: 1px solid var(--ainna-border);
  border-radius: 14px;
  box-shadow: var(--ainna-shadow-card);
  transition: transform var(--ainna-transition), box-shadow var(--ainna-transition), border-color var(--ainna-transition);
}
[data-theme="dark"] .ai-builder-persona { background: rgba(30, 41, 59, 0.9); }
.ai-builder-persona:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 113, 227, 0.35);
  box-shadow: var(--ainna-shadow-hover);
}
.ai-builder-persona-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(102, 126, 234, 0.1);
}
.ai-builder-persona-icon .ainna-icon { width: 22px; height: 22px; }
.ai-builder-persona-title { font-size: 13.5px; font-weight: 700; color: #0f172a; letter-spacing: -0.01em; }
[data-theme="dark"] .ai-builder-persona-title { color: #f1f5f9; }
.ai-builder-persona-desc { font-size: 11.5px; line-height: 1.45; color: var(--ainna-text-muted); }

/* Connectors */
.ai-builder-connector {
  position: relative;
  height: 44px;
  margin: 2px 0;
}
.ai-builder-connector-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.ai-builder-connector-svg .connector-line {
  stroke: #c7d2fe;
  stroke-width: 1.6;
  vector-effect: non-scaling-stroke;
  stroke-dasharray: 4 4;
  animation: aiBuilderDash 2.6s linear infinite;
}
[data-theme="dark"] .ai-builder-connector-svg .connector-line { stroke: #4c1d95; }
@keyframes aiBuilderDash {
  to { stroke-dashoffset: -16; }
}
.ai-builder-converge-label {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  padding: 3px 12px;
  background: var(--ainna-bg);
  border: 1px solid var(--ainna-border);
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ainna-text-muted);
}
[data-theme="dark"] .ai-builder-converge-label { background: var(--ainna-bg-alt); }

/* Central AI Builder node */
.ai-builder-core {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin: 0 auto;
  padding: 18px 28px 16px;
  max-width: 340px;
  text-align: center;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.08));
  border: 1.5px solid rgba(102, 126, 234, 0.4);
  border-radius: 18px;
  position: relative;
}
[data-theme="dark"] .ai-builder-core {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(118, 75, 162, 0.14));
  border-color: rgba(102, 126, 234, 0.55);
}
.ai-builder-core-node {
  position: absolute;
  top: -7px;
  right: -7px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ainna-gradient);
  animation: aiBuilderNode 2.4s ease-in-out infinite;
}
@keyframes aiBuilderNode {
  0%, 100% { box-shadow: 0 0 0 0 rgba(102, 126, 234, 0.45); }
  50% { box-shadow: 0 0 0 8px rgba(102, 126, 234, 0); }
}
.ai-builder-core-label {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--ainna-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.ai-builder-core-sub { font-size: 11.5px; font-weight: 600; color: var(--ainna-text-muted); }

/* Outputs row */
.ai-builder-outputs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.ai-builder-output {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 10px;
  background: rgba(0, 113, 227, 0.05);
  border: 1px solid rgba(0, 113, 227, 0.18);
  border-radius: 12px;
  transition: border-color var(--ainna-transition), background var(--ainna-transition);
}
.ai-builder-output:hover { background: rgba(0, 113, 227, 0.09); border-color: rgba(0, 113, 227, 0.35); }
[data-theme="dark"] .ai-builder-output { background: rgba(56, 189, 248, 0.08); border-color: rgba(56, 189, 248, 0.25); }
.ai-builder-output-icon { display: inline-flex; }
.ai-builder-output-icon .ainna-icon { width: 18px; height: 18px; }
.ai-builder-output-label { font-size: 12.5px; font-weight: 700; color: #0f172a; }
[data-theme="dark"] .ai-builder-output-label { color: #f1f5f9; }
.ai-builder-output-arrow {
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  font-weight: 700;
  color: var(--ainna-blue);
  z-index: 2;
}
.ai-builder-link { margin: 16px 0 0; text-align: center; }
.ai-builder-link a {
  font-size: 13px;
  font-weight: 700;
  color: var(--ainna-blue);
  text-decoration: none;
}
.ai-builder-link a:hover { text-decoration: underline; }
[data-theme="dark"] .ai-builder-link a { color: #38bdf8; }

/* ---- 4-step flow ---- */
.ai-builder-steps {
  list-style: none;
  counter-reset: none;
  margin: 0 auto 40px;
  padding: 0;
  max-width: 1040px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.ai-builder-step-card {
  position: relative;
  padding: 22px 18px 18px !important;
  border: 1px solid var(--ainna-border);
  border-radius: var(--ainna-radius-card);
  background: var(--ainna-bg);
  box-shadow: var(--ainna-shadow-card);
}
[data-theme="dark"] .ai-builder-step-card { background: rgba(30, 41, 59, 0.9); }
.ai-builder-step-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 18px;
  right: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--ainna-gradient);
  opacity: 0.6;
}
.ai-builder-step-no {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.12em;
  color: #7c3aed;
}
[data-theme="dark"] .ai-builder-step-no { color: #a78bfa; }
.ai-builder-step-name {
  display: block;
  margin-bottom: 8px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ainna-text-muted);
}
.ai-builder-step-card h3 { font-size: 15px; line-height: 1.35; margin: 0 0 8px; letter-spacing: -0.01em; }
.ai-builder-step-card p { font-size: 12.5px; line-height: 1.55; color: var(--ainna-text-muted); margin: 0; }

/* ---- Closing statement ---- */
.ai-builder-statement {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  padding: 34px 28px;
  border: 1px solid var(--ainna-border);
  border-radius: var(--ainna-radius-card);
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.08), rgba(0, 113, 227, 0.05));
}
[data-theme="dark"] .ai-builder-statement {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.16), rgba(56, 189, 248, 0.08));
}
.ai-builder-statement h3 {
  font-size: clamp(20px, 2.4vw, 27px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin: 0 0 10px;
  color: #0f172a;
}
[data-theme="dark"] .ai-builder-statement h3 { color: #f8fafc; }
.ai-builder-statement p { font-size: 14px; line-height: 1.6; color: var(--ainna-text-muted); margin: 0 0 20px; }
.ai-builder-formula {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 10px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.ai-builder-formula span {
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--ainna-bg);
  border: 1px solid var(--ainna-border);
  color: #0f172a;
}
[data-theme="dark"] .ai-builder-formula span { background: var(--ainna-bg-alt); color: #f1f5f9; }
.ai-builder-formula i { font-style: normal; color: var(--ainna-text-muted); font-weight: 500; }
.ai-builder-formula strong {
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--ainna-gradient);
  color: #fff;
  font-weight: 800;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .ai-builder-personas { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ai-builder-outputs { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 20px; }
  .ai-builder-output-arrow { display: none; }
  .ai-builder-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ai-builder-connector-svg { opacity: 0.8; }
}
@media (max-width: 560px) {
  .ai-builder-section { padding: 48px 0; }
  .ai-builder-flow { padding: 18px 14px 16px; }
  .ai-builder-personas { gap: 10px; }
  .ai-builder-persona { padding: 12px 8px 10px; }
  .ai-builder-persona-icon { width: 34px; height: 34px; }
  .ai-builder-persona-title { font-size: 12.5px; }
  .ai-builder-persona-desc { font-size: 10.5px; }
  .ai-builder-connector { height: 34px; }
  .ai-builder-core { padding: 14px 20px 12px; }
  .ai-builder-core-label { font-size: 16px; }
  .ai-builder-steps { grid-template-columns: 1fr; gap: 12px; }
  .ai-builder-statement { padding: 26px 18px; }
  .ai-builder-formula { flex-direction: column; gap: 6px; }
  .ai-builder-formula i { display: none; }
}

/* Reduced motion: stop decorative connector/node movement.
   Scroll-triggered fade-ups are already neutralised by the global observer
   and the boosted [data-boost] stylesheet; this covers section-internal keyframes. */
@media (prefers-reduced-motion: reduce), (prefers-reduced-data: reduce) {
  .ai-builder-connector-svg .connector-line,
  .ai-builder-core-node { animation: none !important; }
}