/*
 * Project Browser design tokens (milestone 01). Brand is a placeholder: navy, violet, slate background.
 * Light and dark themes; follow the OS unless the app sets data-theme.
 */
:root {
  --pb-navy: #111827;
  --pb-violet: #7c3aed;
  --pb-violet-strong: #6d28d9;
  --pb-bg: #f8fafc;

  --pb-surface: #ffffff;
  --pb-surface-muted: #f1f5f9;
  --pb-text: #111827;
  --pb-text-muted: #475569;
  --pb-border: #e2e8f0;
  --pb-border-strong: #64748b;
  --pb-accent: var(--pb-violet);
  --pb-accent-text: #ffffff;
  --pb-danger: #b91c1c;
  --pb-danger-bg: #b91c1c;
  --pb-warn: #b45309;
  --pb-success: #15803d;
  --pb-focus: #7c3aed;
  --pb-sidebar: var(--pb-navy);
  --pb-sidebar-text: #e2e8f0;

  --pb-radius: 8px;
  --pb-space-1: 4px;
  --pb-space-2: 8px;
  --pb-space-3: 12px;
  --pb-space-4: 16px;
  --pb-space-6: 24px;
  --pb-font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --pb-font-mono: ui-monospace, "SF Mono", Consolas, monospace;
  --pb-text-sm: 13px;
  --pb-text-md: 14px;
  --pb-text-lg: 18px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --pb-bg: #0b1120;
    --pb-surface: #111827;
    --pb-surface-muted: #1f2937;
    --pb-text: #f1f5f9;
    --pb-text-muted: #94a3b8;
    --pb-border: #273244;
    --pb-border-strong: #7c8aa0;
    --pb-accent: #a78bfa;
    --pb-accent-text: #111827;
    --pb-danger: #f87171;
    --pb-danger-bg: #b91c1c;
    --pb-warn: #fbbf24;
    --pb-success: #4ade80;
    --pb-focus: #c4b5fd;
    --pb-sidebar: #060a14;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --pb-bg: #0b1120;
  --pb-surface: #111827;
  --pb-surface-muted: #1f2937;
  --pb-text: #f1f5f9;
  --pb-text-muted: #94a3b8;
  --pb-border: #273244;
  --pb-border-strong: #7c8aa0;
  --pb-accent: #a78bfa;
  --pb-accent-text: #111827;
  --pb-danger: #f87171;
  --pb-danger-bg: #b91c1c;
  --pb-warn: #fbbf24;
  --pb-success: #4ade80;
  --pb-focus: #c4b5fd;
  --pb-sidebar: #060a14;
  color-scheme: dark;
}

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

body {
  margin: 0;
  background: var(--pb-bg);
  color: var(--pb-text);
  font-family: var(--pb-font);
  font-size: var(--pb-text-md);
  line-height: 1.45;
}

/* Visible, consistent keyboard focus everywhere (never removed without a replacement). */
:focus-visible {
  outline: 2px solid var(--pb-focus);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    /* biome-ignore lint/complexity/noImportantStyles: reduced-motion must override component transitions */
    transition: none !important;
    /* biome-ignore lint/complexity/noImportantStyles: reduced-motion must override component animations */
    animation: none !important;
  }
}

.pb-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.pb-button {
  display: inline-flex;
  align-items: center;
  gap: var(--pb-space-2);
  min-height: 32px;
  padding: 0 var(--pb-space-3);
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius);
  background: var(--pb-surface);
  color: var(--pb-text);
  font: inherit;
  cursor: pointer;
}
.pb-button:hover {
  background: var(--pb-surface-muted);
}
.pb-button[data-variant="primary"] {
  background: var(--pb-accent);
  border-color: var(--pb-accent);
  color: var(--pb-accent-text);
}
.pb-button[data-variant="primary"]:hover {
  filter: brightness(0.95);
}
.pb-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.pb-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--pb-border);
  background: var(--pb-surface-muted);
  font-size: var(--pb-text-sm);
  color: var(--pb-text);
}
.pb-badge__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
}

/* Public website (R4). Design tokens are prepended at build time; no inline styles (CSP). */
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font: 16px / 1.6 var(--pb-font);
  color: var(--pb-text);
  background: var(--pb-bg);
}
a {
  color: var(--pb-accent);
}
:focus-visible {
  outline: 2px solid var(--pb-focus);
  outline-offset: 2px;
}
.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  padding: 8px 12px;
  background: var(--pb-surface);
  color: var(--pb-text);
  border-radius: var(--pb-radius);
  z-index: 10;
}
.skip:focus {
  left: 8px;
}
.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  padding: 14px 16px;
  background: var(--pb-surface);
  border-bottom: 1px solid var(--pb-border);
}
.brand {
  font-weight: 700;
  color: var(--pb-text);
  text-decoration: none;
  margin-right: auto;
}
.top nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.top nav a {
  color: var(--pb-text);
  text-decoration: none;
}
.top nav a[aria-current="page"] {
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 6px;
}
main {
  max-width: 1040px;
  margin: 0 auto;
  padding: 32px 16px 56px;
}
main > section,
main > figure {
  margin: 40px 0;
}
h1 {
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1.2;
  margin: 0 0 16px;
}
h2 {
  font-size: 22px;
  margin: 0 0 10px;
}
h3 {
  font-size: 17px;
  margin: 0 0 4px;
}
.lead {
  font-size: 19px;
  max-width: 46rem;
}
.muted {
  color: var(--pb-text-muted);
}
.small {
  font-size: var(--pb-text-sm);
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0;
}
.button {
  display: inline-block;
  font: inherit;
  padding: 10px 18px;
  border-radius: var(--pb-radius);
  border: 1px solid var(--pb-border-strong);
  background: var(--pb-surface);
  color: var(--pb-text);
  text-decoration: none;
  cursor: pointer;
  min-height: 44px;
}
.button.primary {
  background: var(--pb-accent);
  border-color: var(--pb-accent);
  color: var(--pb-accent-text);
}
.button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.shot {
  margin: 0;
}
.shot img {
  width: 100%;
  height: auto;
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius);
}
.shot figcaption {
  color: var(--pb-text-muted);
  font-size: var(--pb-text-sm);
  margin-top: 6px;
}
.features {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.features li,
.card,
.plan {
  background: var(--pb-surface);
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius);
  padding: 16px;
}
.note {
  border-left: 4px solid var(--pb-accent);
  padding-left: 16px;
}
.plans {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.plan {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.plan .button {
  margin-top: auto;
  text-align: center;
}
.price {
  font-size: 26px;
  font-weight: 700;
}
.segmented {
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius);
  padding: 8px 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 0 0 16px;
}
fieldset.segmented label {
  display: flex;
  align-items: center;
  flex-direction: row;
  gap: 6px;
}
.downloads {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 12px;
}
.downloads li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.downloads .mono {
  font-family: var(--pb-font-mono);
  font-size: var(--pb-text-sm);
  overflow-wrap: anywhere;
}
.downloads .suggested .button {
  border-width: 2px;
}
.faq dt {
  font-weight: 600;
  margin-top: 14px;
}
.faq dd {
  margin: 4px 0 0;
}
.stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 36rem;
}
label {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
input,
select,
textarea {
  font: inherit;
  color: var(--pb-text);
  background: var(--pb-surface);
  border: 1px solid var(--pb-border-strong);
  border-radius: var(--pb-radius);
  padding: 8px 10px;
}
.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.notice {
  border-left: 4px solid var(--pb-accent);
  background: var(--pb-surface-muted);
  padding: 10px 14px;
  border-radius: var(--pb-radius);
}
.draft {
  border: 2px dashed var(--pb-warn);
  padding: 12px 16px;
  border-radius: var(--pb-radius);
  background: var(--pb-surface);
}
.draft-note {
  font-style: italic;
  color: var(--pb-text-muted);
}
.error {
  color: var(--pb-danger);
}
.foot {
  border-top: 1px solid var(--pb-border);
  padding: 24px 16px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 20px;
  font-size: var(--pb-text-sm);
}