/*
 * Optional BBD design-system layer.
 * Rules are intentionally scoped beneath .bbd-ds and do not replace legacy styles.
 * Migration is incremental; page behavior and architecture remain page-owned.
 */

.bbd-ds {
  --bbd-ds-color-background: #08090b;
  --bbd-ds-color-surface: #111318;
  --bbd-ds-color-surface-raised: #171a20;
  --bbd-ds-color-surface-strong: #1e222a;
  --bbd-ds-color-text: #f4f3ed;
  --bbd-ds-color-muted: #b0b3bb;
  --bbd-ds-color-subtle: #858a95;
  --bbd-ds-color-accent: #d4ff3c;
  --bbd-ds-color-technical: #00cfff;
  --bbd-ds-color-status: #ff806f;
  --bbd-ds-color-border: rgb(244 243 237 / 13%);
  --bbd-ds-color-border-strong: rgb(244 243 237 / 24%);

  --bbd-ds-font-display: "Syne", sans-serif;
  --bbd-ds-font-body: "DM Sans", sans-serif;
  --bbd-ds-leading-tight: 1.08;
  --bbd-ds-leading-heading: 1.2;
  --bbd-ds-leading-body: 1.65;

  --bbd-ds-content-max: 75rem;
  --bbd-ds-reading-max: 68ch;
  --bbd-ds-gutter: clamp(1.125rem, 4vw, 2.5rem);

  --bbd-ds-space-1: 0.375rem;
  --bbd-ds-space-2: 0.75rem;
  --bbd-ds-space-3: 1rem;
  --bbd-ds-space-4: 1.5rem;
  --bbd-ds-space-5: 2rem;
  --bbd-ds-space-6: 3rem;
  --bbd-ds-space-7: 4.5rem;
  --bbd-ds-space-8: 6rem;

  --bbd-ds-radius-control: 0.625rem;
  --bbd-ds-radius-card: 0.875rem;
  --bbd-ds-radius-panel: 1.25rem;
  --bbd-ds-border-width: 1px;
  --bbd-ds-shadow-raised: 0 1rem 2.5rem rgb(0 0 0 / 24%);
  --bbd-ds-shadow-focus: 0 0 0 3px rgb(212 255 60 / 38%);
  --bbd-ds-motion-fast: 140ms;
  --bbd-ds-motion-standard: 220ms;
  --bbd-ds-ease-standard: cubic-bezier(0.2, 0.7, 0.2, 1);
  --bbd-ds-focus-color: var(--bbd-ds-color-accent);

  color: var(--bbd-ds-color-text);
  font-family: var(--bbd-ds-font-body);
  line-height: var(--bbd-ds-leading-body);
}

.bbd-ds,
.bbd-ds * {
  box-sizing: border-box;
}

.bbd-ds .bbd-eyebrow,
.bbd-ds .bbd-label {
  margin: 0;
  color: var(--bbd-ds-color-muted);
  font-family: var(--bbd-ds-font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.bbd-ds .bbd-eyebrow {
  color: var(--bbd-ds-color-accent);
}

.bbd-ds .bbd-display,
.bbd-ds .bbd-heading {
  margin: 0;
  color: var(--bbd-ds-color-text);
  font-family: var(--bbd-ds-font-display);
  font-weight: 700;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.bbd-ds .bbd-display {
  font-size: clamp(2.5rem, 6vw, 5.5rem);
  line-height: var(--bbd-ds-leading-tight);
}

.bbd-ds .bbd-heading {
  font-size: clamp(1.75rem, 3.2vw, 3rem);
  line-height: var(--bbd-ds-leading-heading);
}

.bbd-ds .bbd-lead,
.bbd-ds .bbd-copy,
.bbd-ds .bbd-muted {
  margin: 0;
  font-family: var(--bbd-ds-font-body);
}

.bbd-ds .bbd-lead {
  max-width: var(--bbd-ds-reading-max);
  color: var(--bbd-ds-color-muted);
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  line-height: 1.6;
}

.bbd-ds .bbd-copy {
  max-width: var(--bbd-ds-reading-max);
  color: var(--bbd-ds-color-text);
  font-size: 1rem;
  line-height: var(--bbd-ds-leading-body);
}

.bbd-ds .bbd-muted {
  color: var(--bbd-ds-color-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.bbd-ds .bbd-container {
  width: min(100%, var(--bbd-ds-content-max));
  margin-inline: auto;
  padding-inline: var(--bbd-ds-gutter);
}

.bbd-ds .bbd-section {
  padding-block: clamp(3.5rem, 8vw, 7rem);
}

.bbd-ds .bbd-stack {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--bbd-ds-space-4);
  min-width: 0;
}

.bbd-ds .bbd-stack--center {
  align-items: center;
}

.bbd-ds .bbd-cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--bbd-ds-space-3);
  min-width: 0;
}

.bbd-ds .bbd-button {
  display: inline-flex;
  min-height: 2.875rem;
  max-width: 100%;
  align-items: center;
  justify-content: center;
  gap: var(--bbd-ds-space-2);
  padding: 0.75rem 1.125rem;
  border: var(--bbd-ds-border-width) solid transparent;
  border-radius: var(--bbd-ds-radius-control);
  background: transparent;
  color: inherit;
  font: 700 0.9375rem/1.25 var(--bbd-ds-font-body);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--bbd-ds-motion-fast) var(--bbd-ds-ease-standard),
    border-color var(--bbd-ds-motion-fast) var(--bbd-ds-ease-standard),
    color var(--bbd-ds-motion-fast) var(--bbd-ds-ease-standard),
    transform var(--bbd-ds-motion-fast) var(--bbd-ds-ease-standard);
}

.bbd-ds .bbd-button--primary {
  border-color: var(--bbd-ds-color-accent);
  background: var(--bbd-ds-color-accent);
  color: #101207;
}

.bbd-ds .bbd-button--secondary {
  border-color: var(--bbd-ds-color-border-strong);
  background: var(--bbd-ds-color-surface);
  color: var(--bbd-ds-color-text);
}

.bbd-ds .bbd-button--technical {
  border-color: var(--bbd-ds-color-technical);
  background: transparent;
  color: var(--bbd-ds-color-technical);
}

.bbd-ds .bbd-button:hover:not(:disabled, [aria-disabled="true"]) {
  transform: translateY(-1px);
}

.bbd-ds .bbd-button--primary:hover:not(:disabled, [aria-disabled="true"]) {
  border-color: #e1ff76;
  background: #e1ff76;
}

.bbd-ds .bbd-button--secondary:hover:not(:disabled, [aria-disabled="true"]) {
  border-color: var(--bbd-ds-color-accent);
  background: var(--bbd-ds-color-surface-raised);
}

.bbd-ds .bbd-button--technical:hover:not(:disabled, [aria-disabled="true"]) {
  background: rgb(0 207 255 / 9%);
}

.bbd-ds .bbd-button:focus-visible,
.bbd-ds [tabindex]:focus-visible {
  outline: 2px solid var(--bbd-ds-focus-color);
  outline-offset: 3px;
  box-shadow: var(--bbd-ds-shadow-focus);
}

.bbd-ds .bbd-button:active:not(:disabled, [aria-disabled="true"]) {
  transform: translateY(0);
}

.bbd-ds .bbd-button:disabled,
.bbd-ds .bbd-button[aria-disabled="true"] {
  opacity: 0.52;
  cursor: not-allowed;
}

.bbd-ds .bbd-card {
  min-width: 0;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: var(--bbd-ds-border-width) solid var(--bbd-ds-color-border);
  border-radius: var(--bbd-ds-radius-card);
  background: var(--bbd-ds-color-surface);
}

.bbd-ds .bbd-card--raised {
  border-color: var(--bbd-ds-color-border-strong);
  background: var(--bbd-ds-color-surface-raised);
  box-shadow: var(--bbd-ds-shadow-raised);
}

.bbd-ds .bbd-card--interactive {
  transition: border-color var(--bbd-ds-motion-standard) var(--bbd-ds-ease-standard),
    background-color var(--bbd-ds-motion-standard) var(--bbd-ds-ease-standard),
    transform var(--bbd-ds-motion-standard) var(--bbd-ds-ease-standard);
}

.bbd-ds .bbd-card--interactive:focus-visible {
  outline: 2px solid var(--bbd-ds-focus-color);
  outline-offset: 3px;
  box-shadow: var(--bbd-ds-shadow-focus);
}

.bbd-ds .bbd-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--bbd-ds-space-3);
  min-width: 0;
}

.bbd-ds .bbd-stat {
  min-width: 0;
  padding: var(--bbd-ds-space-4);
  border: var(--bbd-ds-border-width) solid var(--bbd-ds-color-border);
  border-radius: var(--bbd-ds-radius-card);
  background: var(--bbd-ds-color-surface);
}

.bbd-ds .bbd-stat__number {
  display: block;
  color: var(--bbd-ds-color-accent);
  font-family: var(--bbd-ds-font-display);
  font-size: clamp(1.75rem, 3.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.1;
  overflow-wrap: anywhere;
}

.bbd-ds .bbd-stat__label {
  display: block;
  margin-top: var(--bbd-ds-space-2);
  color: var(--bbd-ds-color-muted);
  font-size: 0.875rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.bbd-ds .bbd-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--bbd-ds-space-5);
  min-width: 0;
  padding: clamp(1.5rem, 4vw, 3rem);
  border: var(--bbd-ds-border-width) solid var(--bbd-ds-color-border-strong);
  border-radius: var(--bbd-ds-radius-panel);
  background: var(--bbd-ds-color-surface-raised);
}

.bbd-ds .bbd-cta__content {
  display: grid;
  gap: var(--bbd-ds-space-3);
  min-width: 0;
}

.bbd-ds .bbd-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--bbd-ds-space-2);
  min-width: 0;
}

@media (hover: hover) {
  .bbd-ds .bbd-card--interactive:hover {
    transform: translateY(-2px);
    border-color: var(--bbd-ds-color-border-strong);
    background: var(--bbd-ds-color-surface-raised);
  }
}

@media (max-width: 1024px) {
  .bbd-ds .bbd-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .bbd-ds .bbd-cta {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
  }
}

@media (max-width: 380px) {
  .bbd-ds .bbd-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bbd-ds .bbd-button,
  .bbd-ds .bbd-card--interactive {
    transition-duration: 0.01ms;
  }

  .bbd-ds .bbd-button:hover:not(:disabled, [aria-disabled="true"]),
  .bbd-ds .bbd-card--interactive:hover {
    transform: none;
  }
}