/* ============================================================================
   API Demo page
   ============================================================================ */

/* ---------- Hero ---------- */

@keyframes api-demo-blob-1 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(2.5rem, 1.5rem) scale(1.08); }
}

@keyframes api-demo-blob-2 {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(-2rem, -1.5rem); }
}

.api-demo-hero {
  padding: var(--space-12) var(--space-4) var(--space-8);
  text-align: center;
  position: relative;
  z-index: var(--z-content);
}

@media (min-width: 48rem) {
  .api-demo-hero {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

.api-demo-hero__blob {
  position: absolute;
  pointer-events: none;
  z-index: -1;
}

.api-demo-hero__blob--1 {
  width: clamp(28rem, 48vw, 46rem);
  height: clamp(28rem, 48vw, 46rem);
  top: 8%;
  right: -14%;
  background: radial-gradient(
    ellipse at center,
    color-mix(in srgb, var(--color-blue) 16%, transparent) 0%,
    transparent 55%
  );
  animation: api-demo-blob-1 28s ease-in-out infinite alternate;
}

.api-demo-hero__blob--2 {
  width: clamp(26rem, 42vw, 42rem);
  height: clamp(26rem, 42vw, 42rem);
  top: 22%;
  left: -12%;
  background: radial-gradient(
    ellipse at center,
    color-mix(in srgb, var(--color-green) 14%, transparent) 0%,
    transparent 55%
  );
  animation: api-demo-blob-2 32s ease-in-out infinite alternate;
}

.api-demo-hero__title {
  font-size: clamp(2.25rem, 4.5vw, 3rem);
  font-weight: 800;
  color: var(--color-heading);
  letter-spacing: -0.03em;
  line-height: 1.1;
  max-width: 42.5rem;
  margin: 0 auto var(--space-5);
}

.api-demo-hero__accent {
  font-family: var(--font-heading);
  font-weight: 500;
  color: #0000;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
}

.api-demo-hero__subtitle {
  font-size: var(--font-size-lg);
  font-weight: 400;
  color: var(--color-text);
  max-width: 35rem;
  margin: 0 auto;
  line-height: 1.65;
}

@media (max-width: 48rem) {
  .api-demo-hero__subtitle { font-size: var(--font-size-base); }
}

/* ---------- Tabs ---------- */

.api-demo {
  padding: var(--space-4) var(--space-4) var(--space-16);
  position: relative;
  z-index: var(--z-content);
  max-width: 78rem;
}

.api-demo__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-2);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  backdrop-filter: blur(var(--glass-blur));
  width: fit-content;
  margin: 0 auto var(--space-10);
  box-shadow: var(--shadow-sm);
}

.api-demo__tab {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  border: none;
  background: transparent;
  border-radius: var(--radius-full);
  font-family: var(--font-text);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.api-demo__tab:hover { color: var(--color-heading); }

.api-demo__tab--active {
  background: var(--color-blue);
  color: var(--color-white);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--color-blue) 35%, transparent),
              var(--shadow-glow);
}

/* ---------- Panel layout ---------- */

.api-demo__panel { display: block; }
.api-demo__panel[hidden] { display: none; }

.api-demo__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: start;
}

@media (min-width: 64rem) {
  .api-demo__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-8);
  }

  .api-demo__request {
    position: sticky;
    top: 7.5rem;
    align-self: start;
  }
}

/* ---------- Section heads ---------- */

.api-demo__section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.api-demo__section-head--response {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-4);
  border-bottom: 1px dashed var(--glass-border);
  flex-wrap: wrap;
}

/* Response kicker -> signal-split card label with pulse dot */
.api-demo__section-head--response .api-demo__section-kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0;
  background: transparent;
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.api-demo__section-head--response .api-demo__section-kicker::before {
  content: "";
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-green) 25%, transparent);
  animation: api-demo-pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes api-demo-pulse {
  0%, 100% { box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-green) 25%, transparent); }
  50%      { box-shadow: 0 0 0 6px color-mix(in srgb, var(--color-green) 10%, transparent); }
}

/* Response title -> latency badge on the right */
.api-demo__section-head--response .api-demo__section-title {
  flex: 0 0 auto;
  font-family: var(--font-heading);
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-blue);
  padding: 0.125rem var(--space-3);
  border: 1px solid color-mix(in srgb, var(--color-blue) 30%, transparent);
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
  margin-left: auto;
}

.api-demo__section-kicker {
  font-family: var(--font-heading);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-green);
  padding: 0.125rem var(--space-2);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-green) 14%, transparent);
}

.api-demo__section-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-heading);
  margin: 0;
  flex: 1;
}

.api-demo__section-intro {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-5);
}

/* ---------- Request card ---------- */

.api-demo__request {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  backdrop-filter: blur(var(--glass-blur));
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

@media (min-width: 48rem) {
  .api-demo__request { padding: var(--space-8); }
}

/* ---------- Field inputs ---------- */

.api-demo__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.api-demo__field-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-heading);
}

.api-demo__input,
.api-demo__textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  color: var(--color-text);
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Consolas, monospace;
  font-size: var(--font-size-sm);
  line-height: 1.55;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.api-demo__textarea {
  min-height: 8rem;
  resize: none;
}

.api-demo__input:focus,
.api-demo__textarea:focus {
  outline: none;
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-blue) 18%, transparent);
}

.api-demo__input::placeholder,
.api-demo__textarea::placeholder {
  color: var(--color-grey-400);
}

.api-demo__input--error,
.api-demo__textarea.api-demo__input--error {
  border-color: oklch(68% 0.18 25);
  box-shadow: 0 0 0 3px color-mix(in srgb, oklch(68% 0.18 25) 22%, transparent);
  animation: api-demo-input-shake 0.45s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

@keyframes api-demo-input-shake {
  10%, 90% { transform: translateX(-2px); }
  20%, 80% { transform: translateX(3px); }
  30%, 50%, 70% { transform: translateX(-5px); }
  40%, 60% { transform: translateX(5px); }
}

@media (prefers-reduced-motion: reduce) {
  .api-demo__input--error,
  .api-demo__textarea.api-demo__input--error {
    animation: none;
  }
}

/* ---------- Run button ---------- */

.api-demo__run-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.api-demo__run {
  gap: var(--space-2);
  min-height: 3rem;
}

.api-demo__sample {
  min-height: 3rem;
}

.api-demo__error {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, oklch(58% 0.2 25) 6%, transparent);
  border: 1px solid color-mix(in srgb, oklch(58% 0.2 25) 30%, transparent);
  color: var(--color-heading);
  font-family: var(--font-text);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-height: 16rem;
  justify-content: center;
}

.api-demo__error-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: oklch(70% 0.18 25);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.api-demo__error-message {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  line-height: 1.55;
  margin: 0;
}

.api-demo__error-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.5;
}

.api-demo__run-icon {
  opacity: 0;
  width: 0;
  transition: opacity var(--transition-fast), width var(--transition-fast);
}

.api-demo__run[data-state="loading"] .api-demo__run-icon {
  opacity: 1;
  width: 1rem;
  animation: api-demo-spin 0.8s linear infinite;
}

.api-demo__run[data-state="loading"] {
  opacity: 0.85;
  pointer-events: none;
}

@keyframes api-demo-spin {
  to { transform: rotate(360deg); }
}

/* ---------- Response card (signal-split / bid-console aesthetic) ---------- */

.api-demo__response {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow-lg);
  padding: var(--space-6);
  min-height: 32rem;
  overflow: hidden;
}

.api-demo__response::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 15%, color-mix(in srgb, var(--color-green) 18%, transparent), transparent 55%),
    radial-gradient(circle at 15% 85%, color-mix(in srgb, var(--color-blue) 16%, transparent), transparent 55%);
  pointer-events: none;
}

.api-demo__response > * { position: relative; }

@media (min-width: 48rem) {
  .api-demo__response { padding: var(--space-8); }
}

.api-demo__view-toggle {
  display: inline-flex;
  gap: 0.125rem;
  padding: 0.25rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  background: var(--glass-bg-light);
}

.api-demo__view {
  padding: var(--space-1) var(--space-4);
  border: none;
  background: transparent;
  border-radius: var(--radius-full);
  font-family: var(--font-text);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.api-demo__view:hover { color: var(--color-heading); }

.api-demo__view--active {
  background: var(--color-blue);
  color: var(--color-white);
}

.api-demo__response-body {
  display: block;
}

.api-demo__view-panel { margin: 0; }

.api-demo__view-panel--json {
  padding: var(--space-4);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-surface-solid) 55%, transparent);
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Consolas, monospace;
  font-size: var(--font-size-xs);
  line-height: 1.65;
  color: var(--color-grey-300);
  max-height: 36rem;
  overflow: auto;
  white-space: pre;
}

.api-demo__view-panel--json .json-key     { color: var(--color-blue-light); }
.api-demo__view-panel--json .json-string  { color: var(--color-green); }
.api-demo__view-panel--json .json-number  { color: color-mix(in srgb, var(--color-green) 70%, var(--color-white)); }
.api-demo__view-panel--json .json-punct   { color: var(--color-grey-400); }

/* ---------- Visual response panel ---------- */

.api-demo__visual {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.api-demo__visual-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px dashed var(--glass-border);
}

.api-demo__visual-group:first-child {
  padding-top: 0;
  border-top: none;
}

.api-demo__visual-heading {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  color: var(--color-text-muted);
  margin: 0;
}

.api-demo__visual-count {
  margin-left: auto;
  font-family: var(--font-heading);
  font-size: var(--font-size-xs);
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--color-green);
  padding: 0.0625rem var(--space-2);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-green) 10%, transparent);
  font-variant-numeric: tabular-nums;
}

/* Brand safety block - mirrors .signal-split__safety */
.api-demo__safety {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
}

.api-demo__safety--safe {
  background: color-mix(in srgb, var(--color-green) 6%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-green) 25%, transparent);
}

.api-demo__safety--unsafe {
  background: color-mix(in srgb, oklch(58% 0.2 25) 6%, transparent);
  border: 1px solid color-mix(in srgb, oklch(58% 0.2 25) 30%, transparent);
}

.api-demo__safety-icon {
  width: 1.5rem;
  height: 1.5rem;
  flex-shrink: 0;
}

.api-demo__safety--safe .api-demo__safety-icon {
  color: var(--color-green);
  filter: drop-shadow(0 0 0.5rem color-mix(in srgb, var(--color-green) 40%, transparent));
}

.api-demo__safety--unsafe .api-demo__safety-icon {
  color: oklch(70% 0.18 25);
  filter: drop-shadow(0 0 0.5rem color-mix(in srgb, oklch(70% 0.18 25) 40%, transparent));
}

.api-demo__safety-text {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.api-demo__safety-label {
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.api-demo__safety--safe .api-demo__safety-label { color: var(--color-green); }
.api-demo__safety--unsafe .api-demo__safety-label { color: oklch(70% 0.18 25); }

.api-demo__safety-score {
  font-family: var(--font-heading);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

/* Tag chips */
.api-demo__chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.api-demo__chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-heading);
  background: color-mix(in srgb, var(--color-text) 6%, transparent);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  transition: border-color var(--transition-fast);
}

.api-demo__chip:hover {
  border-color: color-mix(in srgb, var(--color-blue) 40%, transparent);
}

.api-demo__chip[hidden] { display: none; }

.api-demo__chip-parent {
  color: var(--color-text-muted);
  font-weight: 400;
  font-size: 0.6875rem;
}

.api-demo__chip-score {
  font-family: var(--font-heading);
  font-size: var(--font-size-xs);
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 0.0625rem var(--space-2);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-blue) 10%, transparent);
  color: var(--color-blue);
}

/* Audience rows */
.api-demo__rows {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Google Topics - signal-split__scores */
.api-demo__scores {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.api-demo__score-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 3fr) auto;
  gap: var(--space-3);
  align-items: center;
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
}

.api-demo__score-name {
  color: var(--color-heading);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.api-demo__score-bar {
  position: relative;
  height: 6px;
  border-radius: var(--radius-full);
  background: color-mix(in srgb, var(--color-text) 6%, transparent);
  overflow: hidden;
}

.api-demo__score-bar > span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--color-blue), var(--color-green));
  border-radius: inherit;
  transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.api-demo__score-val {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 2.5rem;
  text-align: right;
}

/* Audience rows - two grid rows:
   row 1: eyebrow segment spanning all columns
   row 2: tier pill | tail label | bar + % */
.api-demo__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) minmax(0, 1.6fr);
  grid-template-rows: auto auto;
  align-items: center;
  row-gap: 0.125rem;
  column-gap: var(--space-3);
  padding: var(--space-1) 0;
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
}

.api-demo__row[hidden] { display: none; }

.api-demo__row > .api-demo__row-label-segment {
  grid-column: 1 / -1;
  grid-row: 1;
}

.api-demo__row > .api-demo__row-tier,
.api-demo__row > .api-demo__row-label-tail,
.api-demo__row > .api-demo__bar {
  grid-row: 2;
}

.api-demo__row-tier {
  font-family: var(--font-heading);
  font-size: var(--font-size-xs);
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 0.125rem var(--space-2);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-blue) 10%, transparent);
  color: var(--color-blue);
  text-align: center;
  align-self: center;
}

/* Tier group: one per IAB tier, carries its own rows + show-more button */
.api-demo__tier-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.api-demo__tier-group--boundary {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px dashed var(--glass-border);
}

.api-demo__row-label {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.3;
  gap: 0.125rem;
}

.api-demo__row-label-segment {
  display: block;
  color: var(--color-text-muted);
  font-size: 0.6875rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.api-demo__row-label-tail {
  display: block;
  color: var(--color-heading);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.api-demo__bar {
  display: grid;
  grid-template-columns: 1fr max-content;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
}

.api-demo__bar-track {
  position: relative;
  height: 6px;
  border-radius: var(--radius-full);
  background: color-mix(in srgb, var(--color-text) 6%, transparent);
  overflow: hidden;
}

.api-demo__bar-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-blue), var(--color-green));
  transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.api-demo__bar-value {
  font-family: var(--font-heading);
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

/* Collapse in the audience section for long lists */
.api-demo__collapse {
  margin-top: var(--space-3);
  align-self: flex-start;
  padding: var(--space-2) var(--space-4);
  border: 1px dashed var(--glass-border-hover);
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-text);
  font-size: var(--font-size-xs);
  font-weight: 500;
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.api-demo__collapse:hover {
  color: var(--color-blue);
  border-color: var(--color-blue);
}

/* Empty + loading states */
.api-demo__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 22rem;
  padding: var(--space-8);
  text-align: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
}

.api-demo__empty-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--color-heading);
}

.api-demo__empty-body {
  font-size: var(--font-size-sm);
  max-width: 24rem;
  line-height: 1.6;
}

/* ---------- Loading (thin scan bar + pulsing label) ---------- */

.api-demo__loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-5);
  min-height: 22rem;
}

.api-demo__loading-scan {
  position: relative;
  width: 12rem;
  height: 2px;
  background: color-mix(in srgb, var(--color-blue) 10%, transparent);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.api-demo__loading-scan::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 35%;
  background: linear-gradient(90deg, transparent, var(--color-blue), var(--color-green), transparent);
  border-radius: inherit;
  animation: api-demo-loading-scan 1.8s cubic-bezier(0.65, 0, 0.35, 1) infinite;
  will-change: transform;
}

@keyframes api-demo-loading-scan {
  0%   { transform: translateX(-120%); }
  100% { transform: translateX(320%); }
}

.api-demo__loading-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.api-demo__loading-pulse {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-blue);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-blue) 22%, transparent);
  animation: api-demo-loading-pulse 1.4s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes api-demo-loading-pulse {
  0%, 100% { opacity: 0.75; }
  50%      { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .api-demo__loading-scan::after,
  .api-demo__loading-pulse {
    animation: none;
  }
}

/* ============================================================================
   Info section
   ============================================================================ */

.api-demo-info {
  padding: var(--space-16) var(--space-4) var(--space-24);
  position: relative;
  z-index: var(--z-content);
  max-width: 78rem;
}

.api-demo-info__heading {
  font-family: var(--font-heading);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: var(--space-4);
}

.api-demo-info__intro {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  max-width: 40rem;
  margin: 0 auto var(--space-10);
  line-height: 1.65;
  text-align: center;
}

.api-demo-info__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 48rem) {
  .api-demo-info__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.api-demo-info__card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.api-demo-info__card:hover {
  transform: translateY(-0.25rem);
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-lg);
}

.api-demo-info__icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-blue);
  background: color-mix(in srgb, var(--color-blue) 14%, transparent);
}

.api-demo-info__icon--tag {
  color: var(--color-green);
  background: color-mix(in srgb, var(--color-green) 14%, transparent);
}

.api-demo-info__icon--layers {
  color: var(--color-blue-light);
  background: color-mix(in srgb, var(--color-blue-light) 14%, transparent);
}

.api-demo-info__card-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-heading);
  margin: 0;
}

.api-demo-info__card-body {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}

.api-demo-info__card-body code {
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 0.8125rem;
  color: var(--color-blue);
  padding: 0.0625rem 0.25rem;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-blue) 10%, transparent);
}

/* Matches .cta-banner on solution pages - ported locally so api-demo doesn't
   have to pull in the whole solutions.css */
.api-demo-info__cta {
  margin-top: var(--space-10);
}

.cta-banner {
  position: relative;
  background: var(--color-surface-solid);
  color: var(--color-grey-50);
  padding: var(--space-8) var(--space-10);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-8);
  align-items: center;
  transition: box-shadow var(--transition-base);
  overflow: hidden;
}

.cta-banner::after {
  content: "";
  position: absolute;
  top: 0;
  left: -30%;
  width: 20%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(10, 165, 195, 0.15), transparent);
  transform: skewX(-15deg);
  animation: api-demo-cta-scan 5.5s ease-in-out infinite;
  pointer-events: none;
}

.cta-banner:has(.cta-banner__button:hover) {
  box-shadow: 0 0.25rem 1rem rgba(10, 165, 195, 0.2), 0 0 2rem rgba(10, 165, 195, 0.1);
}

.cta-banner__headline {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--font-size-2xl);
  line-height: 1.3;
  margin-bottom: var(--space-2);
  color: var(--color-heading);
}

.cta-banner__sub {
  font-size: var(--font-size-sm);
  color: var(--color-grey-400);
  line-height: 1.5;
}

.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

/* Pulse ring on the primary CTA -- base button styling comes from buttons.css */
.cta-banner__button::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  animation: api-demo-cta-pulse 5.5s ease-in-out infinite;
  pointer-events: none;
}

.cta-banner__button:hover::after { opacity: 0; }

@keyframes api-demo-cta-scan {
  0%, 45% { left: -30%; }
  100%    { left: 130%; }
}

@keyframes api-demo-cta-pulse {
  0%       { box-shadow: 0 0 0 0 rgba(10, 165, 195, 0.4); }
  23%      { box-shadow: 0 0 0 12px rgba(10, 165, 195, 0); }
  45%, 100% { box-shadow: 0 0 0 0 rgba(10, 165, 195, 0.4); }
}

@media (max-width: 52rem) {
  .cta-banner__actions {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
  }

  .cta-banner__actions > .cta-banner__button,
  .cta-banner__actions > .btn {
    justify-content: center;
    width: 100%;
  }
}

@media (max-width: 40rem) {
  .cta-banner {
    grid-template-columns: 1fr;
    text-align: center;
    padding: var(--space-6);
    gap: var(--space-5);
  }
}

/* ============================================================================
   Staggered fade-in
   ============================================================================ */

.api-demo-hero,
.api-demo__request,
.api-demo__response,
.api-demo-info__card {
  opacity: 0;
  transform: translateY(1.25rem);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

.js-ready .api-demo-hero,
.js-ready .api-demo__request,
.js-ready .api-demo__response {
  opacity: 1;
  transform: translateY(0);
}

.js-ready .api-demo__response { transition-delay: 0.12s; }

.js-ready .api-demo-info__card.fade-in--visible {
  opacity: 1;
  transform: translateY(0);
}

.js-ready .api-demo-info__card:nth-child(1) { transition-delay: 0.05s; }
.js-ready .api-demo-info__card:nth-child(2) { transition-delay: 0.15s; }
.js-ready .api-demo-info__card:nth-child(3) { transition-delay: 0.25s; }