/* ============================================================
   SYNORB — public brand system
   Green-black intelligence, lime signal, technical paper.

   This file is loaded last by every rendered public HTML page.
   Page-family styles continue to own layout; this layer owns the
   shared light/dark color contract and high-signal interactions.
   ============================================================ */

:root {
  --synorb-brand-contract: "2026-08-18";

  --syn-ink: #101513;
  --syn-ink-strong: #0b100e;
  --syn-paper: #fafafa;
  --syn-paper-green: #f0f4ec;
  --syn-paper-raised: #ffffff;
  --syn-panel: #131a17;
  --syn-panel-soft: #1b2521;
  --syn-lime: #c9ff63;
  --syn-lime-hover: #d8ff8a;
  --syn-lime-ink: #15210a;
  --syn-sea: #2d7864;
  --syn-sea-deep: #205746;
  --syn-sea-bright: #46b592;
  --syn-sea-wash: #dfece5;
  --syn-on-dark: #f4f7f4;
  --syn-on-sea: #ffffff;

  /* Instrument geometry: quiet, repeatable and deliberately non-pillowy. */
  --syn-radius-control: 0.375rem;
  --syn-radius-panel: 0.625rem;
  --syn-radius-card: 0.875rem;
  --syn-radius-pill: 999px;
  --syn-border-hairline: 1px;
  --syn-shadow-panel: 0 16px 44px rgba(16, 21, 19, 0.08);
  --syn-shadow-float: 0 24px 72px rgba(16, 21, 19, 0.13);
  --syn-shadow-focus: 0 0 0 3px color-mix(in srgb, var(--syn-sea) 24%, transparent);
  --syn-shadow-card: 0 10px 28px rgba(16, 21, 19, 0.07);
  --syn-border-subtle: rgba(16, 21, 19, 0.09);
  --syn-border-inset: rgba(16, 21, 19, 0.06);
  --syn-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --syn-focus-ring: 0 0 0 3px color-mix(in srgb, var(--color-focus) 20%, transparent);

  /* Semantic roles keep lime scarce: signal, action and change only. */
  --syn-signal-bg: var(--syn-sea-wash);
  --syn-signal-fg: var(--syn-sea-deep);
  --syn-proof-bg: var(--syn-paper-green);
  --syn-proof-border: color-mix(in srgb, var(--syn-sea) 28%, transparent);
  --syn-command-bg: var(--syn-panel);
  --syn-command-fg: var(--syn-on-dark);
  --syn-status-bg: var(--syn-paper-green);
  --syn-status-fg: var(--syn-sea-deep);

  --color-bg: var(--syn-paper);
  --color-surface: var(--syn-paper-green);
  --color-surface-raised: var(--syn-paper-raised);
  --color-text: var(--syn-ink);
  --color-text-muted: #46534c;
  --color-text-subtle: #5f6c65;
  --color-border: rgba(16, 21, 19, 0.13);
  --color-border-strong: rgba(16, 21, 19, 0.22);
  --color-action: var(--syn-ink);
  --color-action-hover: var(--syn-ink-strong);
  --color-focus: var(--syn-sea);
  --color-selection-bg: var(--syn-lime);
  --color-selection-text: var(--syn-lime-ink);
  --color-live: var(--syn-lime);
  --color-structure: var(--syn-sea);
  --color-shadow: rgba(16, 21, 19, 0.08);
  --color-code-bg: var(--syn-panel);
  --color-code-fg: var(--syn-on-dark);

  /* Compatibility aliases shared by the existing page families. */
  --bg: var(--color-bg);
  --bg-subtle: var(--color-surface);
  --surface: var(--color-surface-raised);
  --text: var(--color-text);
  --text-secondary: var(--color-text-muted);
  --text-tertiary: var(--color-text-subtle);
  --muted: var(--color-text-muted);
  --faint: var(--color-text-subtle);
  --line: var(--color-border);
  --line-strong: var(--color-border-strong);
  --accent: var(--color-action);
  --selection-bg: var(--color-selection-bg);
  --success: var(--syn-sea-deep);
  --success-bg: var(--syn-sea-wash);
  --site-bg: var(--color-bg);
  --site-text: var(--color-text);
  --site-line-strong: var(--color-border-strong);
  --corp-header-bg: #f6f8f4;
  --corp-card-bg: #f7f9f5;
  --corp-card-bg-strong: var(--syn-paper-raised);
  --corp-panel-bg: #edf3ed;
  --corp-panel-soft: var(--syn-paper-green);
  --corp-field-bg: var(--syn-paper-raised);
  --corp-chip-bg: var(--syn-sea-wash);
  --corp-shadow: 0 20px 60px rgba(16, 21, 19, 0.1);
  --corp-shadow-soft: 0 12px 32px rgba(16, 21, 19, 0.065);
  --bar-fill: var(--syn-sea);
  --surface-green: var(--syn-sea);
}

[data-theme="dark"] {
  --color-bg: #0a0f0d;
  --color-surface: var(--syn-panel-soft);
  --color-surface-raised: var(--syn-panel);
  --color-text: var(--syn-on-dark);
  --color-text-muted: #b6c1ba;
  --color-text-subtle: #89978f;
  --color-border: rgba(244, 247, 244, 0.1);
  --color-border-strong: rgba(244, 247, 244, 0.18);
  --color-action: var(--syn-lime);
  --color-action-hover: var(--syn-lime-hover);
  --color-focus: var(--syn-lime);
  --syn-shadow-focus: 0 0 0 3px color-mix(in srgb, var(--syn-lime) 24%, transparent);
  --syn-shadow-card: 0 12px 32px rgba(0, 0, 0, 0.3);
  --syn-border-subtle: rgba(244, 247, 244, 0.08);
  --syn-border-inset: rgba(244, 247, 244, 0.08);
  --color-shadow: rgba(0, 0, 0, 0.34);
  --color-code-bg: var(--syn-panel);
  --color-code-fg: var(--syn-on-dark);

  --bg: var(--color-bg);
  --bg-subtle: var(--color-surface);
  --surface: var(--color-surface-raised);
  --text: var(--color-text);
  --text-secondary: var(--color-text-muted);
  --text-tertiary: var(--color-text-subtle);
  --muted: var(--color-text-muted);
  --faint: var(--color-text-subtle);
  --line: var(--color-border);
  --line-strong: var(--color-border-strong);
  --accent: var(--color-action);
  --selection-bg: var(--color-selection-bg);
  --success: var(--syn-sea-bright);
  --success-bg: rgba(70, 181, 146, 0.14);
  --site-bg: var(--color-bg);
  --site-text: var(--color-text);
  --site-line-strong: var(--color-border-strong);
  --corp-header-bg: #0e1512;
  --corp-card-bg: #111914;
  --corp-card-bg-strong: #151e1a;
  --corp-panel-bg: var(--syn-panel);
  --corp-panel-soft: var(--syn-panel-soft);
  --corp-field-bg: #111914;
  --corp-chip-bg: var(--syn-panel-soft);
  --corp-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  --corp-shadow-soft: 0 12px 34px rgba(0, 0, 0, 0.27);
  --bar-fill: var(--syn-lime);
  --surface-green: var(--syn-sea-bright);
  --syn-signal-bg: rgba(70, 181, 146, 0.14);
  --syn-signal-fg: var(--syn-sea-bright);
  --syn-proof-bg: #111914;
  --syn-proof-border: rgba(70, 181, 146, 0.34);
  --syn-command-bg: var(--syn-panel);
  --syn-command-fg: var(--syn-on-dark);
  --syn-status-bg: #111914;
  --syn-status-fg: var(--syn-sea-bright);
}

html {
  color-scheme: light;
  accent-color: var(--syn-sea);
}

[data-theme="dark"] {
  color-scheme: dark;
  accent-color: var(--syn-lime);
}

body {
  background: var(--bg);
  color: var(--text-secondary);
}

::selection {
  background: var(--color-selection-bg);
  color: var(--color-selection-text);
}

:where(h1, h2, h3, h4, h5, h6, strong, .brand, .nav-brand) {
  color: var(--text);
}

:where(h1, .hero-headline, .hero-title, .page-title, .pricing-title, .docs-title) {
  letter-spacing: -0.045em !important;
}

:where(
  .lead,
  .hero-sub,
  .hero-copy,
  .subtitle,
  .section-copy,
  .page-intro,
  .docs-subtitle,
  .pricing-subtitle
) {
  color: var(--text-secondary) !important;
}

:where(
  .hero-eyebrow,
  .eyebrow,
  .section-label,
  .section-kicker,
  .rd-kicker,
  .bk-eyebrow
) {
  border-left: 0.24rem solid var(--syn-lime);
  padding-left: 0.68rem;
}

:where(a, button, input, textarea, select, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--color-focus) !important;
  outline-offset: 3px !important;
  box-shadow: var(--syn-focus-ring);
}

:where(.nav-cta, .nav-overlay-cta) {
  border-color: var(--syn-lime) !important;
  background: var(--syn-lime) !important;
  color: var(--syn-lime-ink) !important;
}

:where(.nav-cta, .nav-overlay-cta):hover {
  border-color: var(--syn-lime-hover) !important;
  background: var(--syn-lime-hover) !important;
}

:where(.btn-primary, .button-primary, .btn-submit, .bk-copy, .tier-option-cta a) {
  border-color: var(--syn-ink) !important;
  background: var(--syn-ink) !important;
  color: var(--syn-paper) !important;
}

[data-theme="dark"] :where(.btn-primary, .button-primary, .btn-submit, .bk-copy, .tier-option-cta a) {
  border-color: var(--syn-lime) !important;
  background: var(--syn-lime) !important;
  color: var(--syn-lime-ink) !important;
}

[data-theme="dark"] .rd-primary {
  border-color: var(--syn-lime) !important;
  background: var(--syn-lime) !important;
  color: var(--syn-lime-ink) !important;
}

:where(input, textarea, select):focus {
  border-color: var(--color-focus) !important;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-focus) 18%, transparent);
}

:where(
  pre.code,
  .code-block,
  .code-panel,
  .code-pre,
  .terminal,
  .console-body,
  .command,
  .curl-box,
  .agent-curl,
  .json-block,
  .manifest-console
) {
  border-color: rgba(255, 255, 255, 0.1) !important;
  background: var(--syn-panel) !important;
  color: var(--syn-on-dark) !important;
}

:where(
  pre.code,
  .code-block,
  .code-panel,
  .code-pre,
  .terminal,
  .console-body,
  .command,
  .curl-box,
  .agent-curl,
  .json-block,
  .manifest-console
) :where(a, .accent, .active, .live) {
  color: var(--syn-lime) !important;
}

:where(.pill.dark, .badge.dark, .tag.dark) {
  background: var(--syn-panel) !important;
  color: var(--syn-lime) !important;
}

/* Hover is reserved for surfaces that are actually interactive. Static cards
   stay still; links and buttons provide the affordance. */
:where(
  .syn-interactive-surface,
  .card[data-interactive],
  .feature-card[data-interactive],
  .proof-card[data-interactive],
  .pricing-card[data-interactive],
  .plan-card[data-interactive],
  .blog-card[data-interactive],
  .link-card[data-interactive]
) {
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

:where(
  .syn-interactive-surface,
  .card[data-interactive],
  .feature-card[data-interactive],
  .proof-card[data-interactive],
  .pricing-card[data-interactive],
  .plan-card[data-interactive],
  .blog-card[data-interactive],
  .link-card[data-interactive]
):is(:hover, :focus-within) {
  border-color: color-mix(in srgb, var(--syn-sea) 58%, var(--line-strong)) !important;
  box-shadow: var(--syn-shadow-panel);
}

/* ============================================================
   Evidence-native operator console primitives
   ============================================================ */

.syn-signal-label,
.syn-proof-strip,
.syn-command-surface,
.syn-agent-timeline,
.syn-status-strip,
.syn-metric-block {
  box-sizing: border-box;
}

.syn-signal-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 1.5rem;
  padding: 0.2rem 0.55rem;
  border: var(--syn-border-hairline) solid color-mix(in srgb, var(--syn-sea) 34%, transparent);
  border-radius: var(--syn-radius-pill);
  background: var(--syn-signal-bg);
  color: var(--syn-signal-fg);
  font: 600 0.6875rem/1 var(--syn-font-mono);
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.syn-signal-label::before {
  width: 0.4rem;
  height: 0.4rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.syn-signal-label[data-signal="live"],
.syn-signal-label[data-signal="changed"] {
  border-color: var(--syn-lime);
  background: var(--syn-lime);
  color: var(--syn-lime-ink);
}

.syn-signal-label[data-signal="live"]::before {
  animation: syn-signal-pulse 1.8s ease-in-out infinite;
}

.syn-proof-strip {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.5rem 0.75rem;
  align-items: baseline;
  padding: 0.75rem 0.875rem;
  border: var(--syn-border-hairline) solid var(--syn-proof-border);
  border-radius: var(--syn-radius-panel);
  background: var(--syn-proof-bg);
  color: var(--text-secondary);
  font-size: 0.8125rem;
}

.syn-proof-strip > :first-child {
  color: var(--syn-signal-fg);
  font: 600 0.6875rem/1.2 var(--syn-font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.syn-proof-strip a {
  color: var(--syn-sea-deep);
  font-weight: 650;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

[data-theme="dark"] .syn-proof-strip a {
  color: var(--syn-sea-bright);
}

.syn-command-surface {
  overflow: auto;
  padding: 1rem 1.125rem;
  border: var(--syn-border-hairline) solid rgba(255, 255, 255, 0.12);
  border-radius: var(--syn-radius-panel);
  background: var(--syn-command-bg);
  color: var(--syn-command-fg);
  font: 0.8125rem/1.65 var(--syn-font-mono);
  tab-size: 2;
}

.syn-command-surface code {
  color: inherit;
  font: inherit;
}

.syn-command-surface .syn-command-accent,
.syn-command-surface [data-token="accent"] {
  color: var(--syn-lime);
}

.syn-agent-timeline {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.syn-agent-timeline > li {
  position: relative;
  display: grid;
  grid-template-columns: 1.25rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0 0 1.125rem;
  color: var(--text-secondary);
}

.syn-agent-timeline > li::before {
  position: relative;
  z-index: 1;
  width: 0.625rem;
  height: 0.625rem;
  margin: 0.25rem 0 0 0.25rem;
  border: 2px solid var(--syn-sea);
  border-radius: 50%;
  background: var(--bg);
  content: "";
}

.syn-agent-timeline > li:not(:last-child)::after {
  position: absolute;
  top: 0.875rem;
  bottom: 0;
  left: 0.5rem;
  width: 1px;
  background: color-mix(in srgb, var(--syn-sea) 38%, var(--line));
  content: "";
}

.syn-agent-timeline > li[data-state="active"]::before,
.syn-agent-timeline > li[data-state="changed"]::before {
  border-color: var(--syn-lime);
  background: var(--syn-lime);
}

.syn-agent-timeline time,
.syn-agent-timeline .syn-timeline-meta {
  color: var(--text-tertiary);
  font: 600 0.6875rem/1.2 var(--syn-font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.syn-status-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.625rem 1rem;
  padding: 0.625rem 0.875rem;
  border: var(--syn-border-hairline) solid color-mix(in srgb, var(--syn-sea) 28%, transparent);
  border-radius: var(--syn-radius-panel);
  background: var(--syn-status-bg);
  color: var(--syn-status-fg);
  font-size: 0.8125rem;
}

.syn-status-strip[data-state="live"],
.syn-status-strip[data-state="changed"] {
  border-color: var(--syn-lime);
  background: color-mix(in srgb, var(--syn-lime) 20%, var(--syn-status-bg));
  color: var(--syn-lime-ink);
}

.syn-status-strip[data-state="degraded"] {
  border-color: var(--syn-sea);
}

[data-theme="dark"] .syn-status-strip[data-state="live"],
[data-theme="dark"] .syn-status-strip[data-state="changed"] {
  color: var(--syn-lime);
}

.syn-metric-block {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 1.125rem;
  border: var(--syn-border-hairline) solid var(--line);
  border-radius: var(--syn-radius-card);
  background: var(--surface);
}

.syn-metric-block .syn-metric-value {
  color: var(--text);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 680;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.syn-metric-block .syn-metric-label,
.syn-metric-block .syn-metric-meta {
  color: var(--text-tertiary);
  font: 600 0.6875rem/1.25 var(--syn-font-mono);
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

@keyframes syn-signal-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.78); }
}

.brand-theme-toggle {
  position: fixed;
  z-index: 90;
  right: 1rem;
  bottom: calc(1rem + env(safe-area-inset-bottom));
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--syn-panel);
  box-shadow: var(--corp-shadow-soft);
  color: var(--syn-lime);
  cursor: pointer;
  font: inherit;
}

@media (prefers-reduced-motion: reduce) {
  :where(
    .syn-interactive-surface,
    .card[data-interactive],
    .feature-card[data-interactive],
    .proof-card[data-interactive],
    .pricing-card[data-interactive],
    .plan-card[data-interactive],
    .blog-card[data-interactive],
    .link-card[data-interactive]
  ) {
    transition: none;
  }

  .syn-signal-label[data-signal="live"]::before {
    animation: none;
  }
}

@media (max-width: 40rem) {
  .syn-proof-strip {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .syn-command-surface {
    padding: 0.875rem;
    font-size: 0.75rem;
  }
}