/* CogniBridge — Workbench layout · tokens + site-shared */

@import url("../../tokens.css");
@import url("../../css/site-shared.css");

/* ── Cogni chrome (nav density for 5+ links) ── */
.cogni-site .site-nav {
  width: min(1180px, calc(100% - var(--space-md) * 2));
}

.cogni-site .site-nav-links {
  gap: var(--space-sm);
}

.cogni-site .site-nav-links a {
  font-size: var(--text-xs);
  padding: var(--space-3xs) 0;
}

.cogni-site .logo-text {
  font-size: var(--text-md);
}

body[data-lang="en"].cogni-site .site-nav-links a {
  letter-spacing: -0.01em;
}

/* ── Page shell (airy rhythm · DENSITY ~3) ── */
.cogni-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: calc(72px + var(--space-xl)) var(--space-lg) var(--space-3xl);
}

/* ── Hero: asymmetric split ── */
.cogni-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 320px);
  gap: clamp(var(--space-lg), 5vw, var(--space-2xl));
  align-items: start;
  margin-bottom: var(--space-3xl);
  padding-bottom: var(--space-2xl);
  border-bottom: var(--rule-hairline);
}

.cogni-hero-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.cogni-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-sm);
}

.kicker-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
  max-width: 42rem;
}

.kicker-tags span {
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  padding: var(--space-2xs) var(--space-sm);
  border: var(--rule-hairline);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
  white-space: nowrap;
}

.cogni-hero-copy h1 {
  font-family: var(--font-display);
  font-size: var(--text-display-s);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--color-ink);
  margin: 0 0 var(--space-lg);
  max-width: 20em;
  text-wrap: balance;
  min-width: 0;
}

body[data-lang="en"] .cogni-hero-copy h1 {
  font-size: clamp(1.875rem, 3.8vw, 2.75rem);
  max-width: 22em;
  line-height: 1.18;
}

.lead {
  color: var(--color-ink-2);
  font-size: var(--text-lg);
  line-height: 1.75;
  margin: 0 0 var(--space-xl);
  max-width: 42em;
}

body[data-lang="en"] .lead {
  font-size: var(--text-md);
  max-width: 46em;
}

.ctaRow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-sm);
  max-width: 100%;
  width: 100%;
}

.btn-stack {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 3px;
  min-height: 56px;
  padding: var(--space-xs) var(--space-md);
  border: var(--rule-hairline);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
  color: var(--color-ink);
  font-weight: 600;
  font-size: var(--text-sm);
  text-decoration: none;
  transition: border-color var(--dur-short) var(--ease-out), transform var(--dur-short) var(--ease-out);
}

.btn-stack span {
  line-height: 1.3;
}

.btn-stack small {
  font-weight: 400;
  font-size: var(--text-xs);
  color: var(--color-ink-2);
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.btn-stack:hover {
  border-color: var(--color-accent);
  color: var(--color-ink);
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-stack:active {
  transform: translateY(0);
}

.btn-stack.is-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

.btn-stack.is-primary small {
  color: oklch(99% 0.005 255 / 0.82);
}

.btn-stack.is-primary:hover {
  color: var(--color-accent-ink);
}

/* Hero aside panel */
.cogni-hero-aside {
  position: sticky;
  top: calc(72px + var(--space-md));
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.cogni-hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 168px;
  padding: var(--space-xl) var(--space-lg);
  border: var(--rule-hairline);
  border-radius: var(--radius-lg);
  background: var(--color-paper-2);
  overflow: hidden;
}

.cogni-hero-visual__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 0%, var(--color-accent-soft), transparent 55%),
    radial-gradient(ellipse 70% 50% at 100% 100%, oklch(50% 0.17 255 / 0.14), transparent 50%),
    linear-gradient(160deg, var(--color-paper-2), var(--color-paper-3));
  pointer-events: none;
}

.cogni-hero-visual img {
  position: relative;
  z-index: 1;
  width: 5.5rem;
  height: 5.5rem;
  object-fit: contain;
  filter: drop-shadow(0 10px 24px oklch(24% 0.045 260 / 0.12));
}

.cogni-info-panel {
  background: var(--color-paper-2);
  border: var(--rule-hairline);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.cogni-info-panel::before {
  content: "";
  display: block;
  height: 3px;
  background: var(--color-accent);
}

.cogni-info-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-top: var(--rule-hairline);
}

.cogni-info-row:first-of-type {
  border-top: none;
}

.cogni-info-row dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ink-3);
  flex-shrink: 0;
}

.cogni-info-row dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink);
  text-align: right;
  overflow-wrap: anywhere;
  min-width: 0;
}

.cogni-info-note {
  margin: 0;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-xs);
  color: var(--color-ink-2);
  line-height: 1.55;
  border: var(--rule-hairline);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  background: var(--color-paper);
}

/* ── Features: bento grid with visual hierarchy ── */
.cogni-features {
  margin-bottom: var(--space-3xl);
  padding: var(--space-2xl) 0 0;
  border-top: var(--rule-hairline);
  position: relative;
}

.cogni-features::before {
  content: "";
  position: absolute;
  inset: -2rem 0 auto;
  height: 12rem;
  background: radial-gradient(ellipse 70% 80% at 50% 0%, var(--color-accent-soft), transparent 70%);
  pointer-events: none;
  opacity: 0.65;
}

.cogni-section-head {
  position: relative;
  margin-bottom: var(--space-2xl);
  max-width: 40rem;
}

.cogni-section-head h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin: 0 0 var(--space-sm);
}

.cogni-section-head p {
  margin: 0;
  font-size: var(--text-md);
  color: var(--color-ink-2);
  line-height: 1.7;
  max-width: 42em;
}

.cogni-features .feature-bento {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
  --feature-icon: 1.75rem;
  --feature-icon-gap: var(--space-sm);
}

.cogni-features .feature-tile {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-paper-2);
  border: var(--rule-hairline);
  border-radius: var(--radius-lg);
  transition: border-color var(--dur-short) var(--ease-out);
}

.cogni-features .feature-tile:hover {
  border-color: var(--color-accent-muted);
}

.cogni-features .feature-tile--lead {
  background: linear-gradient(135deg, var(--color-paper-2) 0%, var(--color-accent-soft) 100%);
  border-color: var(--color-accent-muted);
}

.cogni-features .feature-tile__head {
  display: flex;
  align-items: center;
  gap: var(--feature-icon-gap);
  min-width: 0;
}

.cogni-features .feature-glyph {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--feature-icon);
  height: var(--feature-icon);
  flex-shrink: 0;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent-muted);
  border-radius: var(--radius-sm);
}

.cogni-features .feature-glyph svg {
  width: 1rem;
  height: 1rem;
}

.cogni-features .feature-tile__head h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin: 0;
  line-height: 1.35;
}

.cogni-features .feature-tile > p {
  margin: 0;
  padding-left: calc(var(--feature-icon) + var(--feature-icon-gap));
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  line-height: 1.7;
}

.cogni-features .feature-meta {
  list-style: none;
  margin: 0;
  padding: 0 0 0 calc(var(--feature-icon) + var(--feature-icon-gap));
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs);
}

.cogni-features .feature-meta li {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  border: var(--rule-hairline);
  background: var(--color-paper);
  color: var(--color-ink-3);
}

@media (min-width: 768px) {
  .cogni-features .feature-bento {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-md);
  }

  .cogni-features .feature-tile--span-2 {
    grid-column: 1 / -1;
  }
}

/* Subtle entry motion (MOTION ~5) */
@media (prefers-reduced-motion: no-preference) {
  .cogni-hero-copy > * {
    animation: cogni-rise 0.65s var(--ease-out) both;
  }

  .cogni-hero-copy > *:nth-child(1) { animation-delay: 0.05s; }
  .cogni-hero-copy > *:nth-child(2) { animation-delay: 0.1s; }
  .cogni-hero-copy > *:nth-child(3) { animation-delay: 0.15s; }
  .cogni-hero-copy > *:nth-child(4) { animation-delay: 0.2s; }
  .cogni-hero-copy > *:nth-child(5) { animation-delay: 0.28s; }

  .cogni-hero-aside {
    animation: cogni-rise 0.7s var(--ease-out) 0.12s both;
  }

  .cogni-features .feature-tile {
    animation: cogni-rise 0.55s var(--ease-out) both;
  }

  .cogni-features .feature-tile:nth-child(1) { animation-delay: 0.08s; }
  .cogni-features .feature-tile:nth-child(2) { animation-delay: 0.12s; }
  .cogni-features .feature-tile:nth-child(3) { animation-delay: 0.16s; }
  .cogni-features .feature-tile:nth-child(4) { animation-delay: 0.2s; }
  .cogni-features .feature-tile:nth-child(5) { animation-delay: 0.24s; }
  .cogni-features .feature-tile:nth-child(6) { animation-delay: 0.28s; }
}

@keyframes cogni-rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cogni-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-md);
  align-items: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: var(--rule-hairline);
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

.cogni-meta a {
  color: var(--color-ink-2);
  border-bottom: 1px solid var(--color-rule);
}

.cogni-meta a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.cogni-meta-sep {
  color: var(--color-rule);
  user-select: none;
}

/* ── Downloads page (cogni-site) ── */
.cogni-downloads {
  max-width: 880px;
  margin: 0 auto;
  padding: calc(72px + var(--space-2xl)) var(--space-md) var(--space-3xl);
}

.cogni-downloads-head {
  margin-bottom: var(--space-xl);
  max-width: 42rem;
}

.cogni-downloads-head h1 {
  font-family: var(--font-display);
  font-size: var(--text-display-s);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--color-ink);
  margin: 0 0 var(--space-sm);
}

body[data-lang="en"] .cogni-downloads-head h1 {
  font-size: var(--text-2xl);
}

.cogni-downloads-head .sub {
  font-size: var(--text-md);
  color: var(--color-ink-2);
  line-height: 1.65;
  margin: 0;
}

.cogni-downloads-head .sub a {
  border-bottom: 1px solid var(--color-accent-muted);
}

.cogni-downloads .hint {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  color: var(--color-ink-3);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-paper-2);
  border: var(--rule-hairline);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.cogni-downloads .card {
  margin-bottom: var(--space-md);
  background: var(--color-paper-2);
  border: var(--rule-hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
}

.cogni-downloads .row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xs);
}

.cogni-downloads .title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-ink);
}

.cogni-downloads .dir {
  font-size: var(--text-xs);
  color: var(--color-ink-3);
  margin-bottom: var(--space-xs);
}

.cogni-downloads .file-table-head {
  display: none;
}

.cogni-downloads ul {
  list-style: none;
  margin: var(--space-sm) 0 0;
  padding: 0;
}

.cogni-downloads li {
  display: grid;
  grid-template-columns: minmax(0, 130px) minmax(0, 1fr) auto minmax(0, 180px);
  gap: var(--space-sm);
  align-items: center;
  border-top: var(--rule-hairline);
  padding: var(--space-sm) 0;
  font-size: var(--text-sm);
}

body[data-lang="en"] .cogni-downloads li {
  grid-template-columns: minmax(0, 148px) minmax(0, 1fr) auto minmax(0, 200px);
}

.cogni-downloads .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  border: var(--rule-hairline);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
  color: var(--color-ink-2);
  line-height: 1.35;
}

.cogni-downloads .name {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  word-break: break-all;
  color: var(--color-ink);
  line-height: 1.4;
}

.cogni-downloads .size {
  font-size: var(--text-xs);
  color: var(--color-ink-3);
  white-space: nowrap;
}

.cogni-downloads .dl-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs);
  justify-content: flex-end;
}

.cogni-downloads .dl-primary {
  font-weight: 600;
  font-size: var(--text-xs);
  white-space: nowrap;
  padding: var(--space-3xs) var(--space-xs);
  border: var(--rule-hairline);
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  border-color: var(--color-accent-muted);
}

.cogni-downloads .dl-primary:hover {
  border-color: var(--color-accent);
}

.cogni-downloads .dl-mirror {
  font-size: var(--text-xs);
  color: var(--color-ink-2);
  white-space: nowrap;
  padding: var(--space-3xs) var(--space-xs);
}

.cogni-downloads .release-badge {
  display: inline-block;
  margin-left: var(--space-2xs);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent-ink);
  background: var(--color-accent);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  vertical-align: middle;
}

.cogni-downloads .source-tag {
  display: inline-block;
  margin-left: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  border: var(--rule-hairline);
  vertical-align: middle;
}

.cogni-downloads .source-github {
  color: var(--color-accent);
  border-color: var(--color-accent-muted);
  background: var(--color-accent-soft);
}

.cogni-downloads .source-mirror {
  color: var(--color-ink-2);
}

.cogni-downloads .changelog {
  margin-top: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border: var(--rule-hairline);
  background: var(--color-paper);
  color: var(--color-ink-2);
  font-size: var(--text-sm);
  line-height: 1.65;
  white-space: pre-wrap;
}

.cogni-downloads .changelog-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2xs);
}

.cogni-downloads .empty {
  color: var(--color-danger);
  font-size: var(--text-sm);
  padding: var(--space-sm) 0;
}

.cogni-downloads .github-all-link {
  text-align: center;
  margin-top: var(--space-lg);
  font-size: var(--text-sm);
}

.cogni-downloads .github-all-link a {
  font-weight: 600;
}

.cogni-downloads-req {
  margin-top: var(--space-xl);
  padding: var(--space-md) var(--space-lg);
  border: var(--rule-hairline);
  border-radius: var(--radius-lg);
  background: var(--color-paper-2);
}

.cogni-downloads-req h2 {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--color-ink);
  margin: 0 0 var(--space-xs);
}

.cogni-downloads-req p {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  line-height: 1.65;
  max-width: 58ch;
}

/* ── Responsive ── */
@media (max-width: 968px) {
  .cogni-main {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .cogni-hero {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .cogni-hero-aside {
    position: static;
    order: -1;
  }

  .ctaRow {
    grid-template-columns: 1fr;
  }

  .cogni-info-panel {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .cogni-info-row {
    flex-direction: column;
    align-items: flex-start;
    border-top: none;
    border-right: var(--rule-hairline);
    padding: var(--space-sm);
  }

  .cogni-info-row:last-child {
    border-right: none;
  }

  .cogni-info-row dd {
    text-align: left;
  }

  .cogni-info-note {
    border-top: var(--rule-hairline);
    border-radius: var(--radius-lg);
    margin-top: var(--space-sm);
  }

}

@media (max-width: 640px) {
  .ctaRow {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .cogni-main,
  .cogni-downloads {
    padding-top: calc(64px + var(--space-xl));
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .cogni-hero-copy h1 {
    max-width: none;
    font-size: var(--text-2xl);
  }

  body[data-lang="en"] .cogni-hero-copy h1 {
    font-size: var(--text-2xl);
  }

  .cogni-features .feature-tile > p,
  .cogni-features .feature-meta {
    padding-left: calc(var(--feature-icon) + var(--feature-icon-gap));
  }

  .cogni-hero-visual {
    min-height: 140px;
    padding: var(--space-lg);
  }

  .cogni-info-panel {
    grid-template-columns: 1fr;
  }

  .cogni-info-row {
    flex-direction: row;
    justify-content: space-between;
    border-right: none;
    border-top: var(--rule-hairline);
  }

  .cogni-info-row:first-of-type {
    border-top: none;
  }

  .cogni-info-row dd {
    text-align: right;
  }

  .cogni-downloads li {
    grid-template-columns: 1fr;
    gap: var(--space-2xs);
    padding: var(--space-md) 0;
  }

  .cogni-downloads .dl-actions {
    justify-content: flex-start;
  }

  .cogni-downloads .size {
    order: 3;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cogni-hero-copy > *,
  .cogni-hero-aside,
  .cogni-features .feature-tile {
    animation: none;
  }

  .btn-stack:hover {
    transform: none;
  }
}