/* Agent download page: build cards, OS auto-detect, install tabs.
   Calm, product-utility palette: neutral surfaces, a single accent per card. */

.download-section {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 4rem;
}

.download-hero {
  max-width: 50rem;
  margin: 0 auto 2.75rem;
  text-align: center;
}

.download-hero .eyebrow-badge {
  margin-top: 0;
}

.download-hero__title {
  margin: 1rem 0 0;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  text-wrap: balance;
}

.download-hero__lead {
  margin: 0.9rem auto 0;
  max-width: 42rem;
  color: var(--text-lead);
  font-size: 1.02rem;
  line-height: 1.6;
}

.download-detect {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 1.4rem;
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--border-muted);
  background: var(--bg-soft);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
}

.download-detect__dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
}

/* Build cards */
.download-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin-bottom: 3.5rem;
  align-items: start;
}

.download-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.5rem;
  border-radius: 20px;
  border: 1px solid var(--border-subtle);
  background: var(--surface);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

/* Ховер карточки загрузки убран — визуальный отклик только на кнопках. */

.download-card.is-default,
.download-card.is-recommended {
  border-color: rgba(45, 212, 191, 0.4);
}

html[data-theme="light"] .download-card {
  background: rgba(255, 255, 255, 0.96);
}

html[data-theme="light"] .download-card.is-default,
html[data-theme="light"] .download-card.is-recommended {
  border-color: rgba(15, 118, 110, 0.4);
}

/* Badge slot: always reserved so cards stay aligned and nothing overlaps. */
.download-card__badge-slot {
  min-height: 1.5rem;
  margin-bottom: 0.5rem;
}

.download-card__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid rgba(45, 212, 191, 0.28);
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

html[data-theme="light"] .download-card__badge {
  background: rgba(15, 118, 110, 0.1);
  border-color: rgba(15, 118, 110, 0.25);
  color: rgba(15, 118, 110, 0.95);
}

.download-card__top {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.download-card__os-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: var(--bg-soft);
  border: 1px solid var(--border-subtle);
  color: var(--accent);
  flex: 0 0 auto;
}

.download-card__heading {
  min-width: 0;
}

.download-card__os {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--text);
}

.download-card__kind {
  margin: 0.15rem 0 0;
  color: var(--text-support);
  font-weight: 500;
  font-size: 0.92rem;
}

.download-card__note {
  margin: 1rem 0 0;
  color: var(--text-support);
  font-size: 0.9rem;
  line-height: 1.5;
}

.download-card__meta {
  list-style: none;
  margin: 1.1rem 0 1.3rem;
  padding: 1rem 0 0;
  border-top: 1px solid var(--border-hairline);
  display: grid;
  gap: 0.5rem;
}

.download-card__meta li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.9rem;
}

.download-card__meta span {
  color: var(--text-support);
}

.download-card__meta strong {
  color: var(--text);
  font-weight: 600;
}

/* One calm, single-hue CTA per card. */
.download-card__btn {
  width: 100%;
  text-align: center;
  margin-top: auto;
  background: var(--accent);
  border: 1px solid transparent;
  color: var(--accent-foreground);
  font-weight: 600;
}

.download-card__btn:hover,
.download-card__btn:focus-visible {
  background: var(--accent-dark);
  color: var(--accent-foreground);
  filter: brightness(1.03);
}

.download-card__hash {
  margin-top: 0.9rem;
}

.download-card__hash > summary {
  cursor: pointer;
  list-style: none;
  color: var(--text-support);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  user-select: none;
}

.download-card__hash > summary::-webkit-details-marker {
  display: none;
}

.download-card__hash > summary::before {
  content: "▸ ";
  color: var(--text-soft);
}

.download-card__hash[open] > summary::before {
  content: "▾ ";
}

.download-card__hash-body {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.55rem;
  padding: 0.55rem 0.65rem;
  border-radius: 12px;
  background: var(--control-bg);
  border: 1px solid var(--border-subtle);
}

.download-card__hash-body code {
  flex: 1 1 auto;
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: 0.72rem;
  line-height: 1.35;
  color: var(--text-secondary);
}

.download-card__hash-body .btn {
  flex: 0 0 auto;
  padding: 0.35rem 0.65rem;
  font-size: 0.78rem;
}

/* Install instructions */
.download-install {
  margin-bottom: 3rem;
}

.install-panel {
  padding: 1.5rem;
}

.install-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.4rem;
}

.install-tab {
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--border-muted);
  background: var(--bg-soft);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.install-tab:hover {
  border-color: var(--border);
  color: var(--text);
}

.install-tab.is-active {
  background: var(--accent);
  border-color: transparent;
  color: var(--accent-foreground);
}

.install-steps {
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.65rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.install-steps li::marker {
  color: var(--text-soft);
  font-weight: 700;
}

/* Token CTA */
.download-token {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.8rem;
  flex-wrap: wrap;
}

.download-token__copy {
  max-width: 40rem;
}

.download-token__copy h2 {
  margin: 0 0 0.5rem;
}

.download-token__copy p {
  margin: 0;
  color: var(--text-lead);
}

.download-token__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .download-grid {
    grid-template-columns: 1fr;
    max-width: 28rem;
    margin-left: auto;
    margin-right: auto;
  }

  .download-card__badge-slot {
    min-height: 0;
  }

  .download-card__badge-slot:empty,
  .download-card .download-card__badge[hidden] {
    display: none;
  }
}

@media (max-width: 640px) {
  .download-token {
    flex-direction: column;
    align-items: flex-start;
  }

  .download-token__actions {
    width: 100%;
  }

  .download-token__actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}