/* Platform launcher + product context navigation (Phase 1 UI reorganization) */

.launcher-workspace {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0;
}

.launcher-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  align-items: stretch;
}

.launcher-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px;
  border-radius: var(--card-radius);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  box-shadow: var(--card-shadow);
  text-align: left;
  transition: transform var(--transition-duration), box-shadow var(--transition-duration), border-color var(--transition-duration);
}

.launcher-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--text) 8%, transparent);
}

.launcher-card--math:hover {
  border-color: color-mix(in srgb, #2563eb 45%, var(--card-border));
}

.launcher-card--research:hover {
  border-color: color-mix(in srgb, #0f766e 45%, var(--card-border));
}

.launcher-card--library:hover {
  border-color: color-mix(in srgb, #7c3aed 45%, var(--card-border));
}

.launcher-card__footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--card-border);
}

.launcher-card__footer--solo {
  justify-content: flex-start;
}

.launcher-card__recent {
  flex: 1 1 auto;
  min-width: 0;
  max-width: 58%;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
}

.launcher-card__recent-label {
  margin: 0 0 6px;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.launcher-card__open-again {
  align-self: flex-end;
  white-space: nowrap;
}

.home-quick-access {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--card-border);
}

.home-quick-access__summary {
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-muted);
  user-select: none;
  list-style: none;
  margin-bottom: 8px;
}

.home-quick-access__summary::-webkit-details-marker {
  display: none;
}

.home-quick-access__summary::before {
  content: "▸ ";
  display: inline-block;
  transition: transform var(--transition-duration);
}

.home-quick-access[open] .home-quick-access__summary::before {
  transform: rotate(90deg);
}

.home-quick-access__row {
  margin-top: 4px;
}

.action-group-row-learning--primary {
  flex-wrap: wrap;
  gap: 8px;
}

.workspace-entry-btn--compact .workspace-entry-btn-line {
  font-size: 0.85rem;
}

.workspace-entry-btn--compact {
  padding: 8px 12px;
}

.launcher-card--math {
  border-top: 3px solid #2563eb;
}

.launcher-card--research {
  border-top: 3px solid #0f766e;
}

.launcher-card--library {
  border-top: 3px solid #7c3aed;
}

.launcher-card__icon {
  font-size: 1.4rem;
  line-height: 1;
}

.launcher-card__title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.launcher-card__desc {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.35;
}

.launcher-card__features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.launcher-card__chip {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  background: var(--btn-secondary-bg);
  color: var(--text-muted);
  border: 1px solid var(--card-border);
}

.launcher-card__enter {
  flex-shrink: 0;
  align-self: flex-end;
}

.launcher-card__badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.launcher-card__badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(124, 58, 237, 0.15);
  color: #7c3aed;
  border: 1px solid rgba(124, 58, 237, 0.35);
}

.launcher-card__used-by {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.3;
}

html[data-active-product="platform"] .main-header-row {
  margin-bottom: 8px;
  padding-bottom: 8px;
}

html[data-active-product="platform"] .subtitle.subtitle--author {
  font-size: 0.78rem;
  margin-top: 2px;
  margin-bottom: 0;
  line-height: 1.35;
}

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

  .launcher-card--library {
    grid-column: 1 / -1;
  }
}

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

  .launcher-card--library {
    grid-column: auto;
  }
}

/* Product context bar (Math AI Tutor / Research AI) */
.product-context-bar {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px 16px;
  margin-bottom: 12px;
  border-radius: var(--card-radius);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  box-shadow: var(--card-shadow);
}

.product-context-bar--math {
  border-left: 4px solid #2563eb;
}

.product-context-bar--research {
  border-left: 4px solid #0f766e;
}

.product-context-bar__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
}

.product-context-back {
  margin-left: auto;
  flex-shrink: 0;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
}

.product-context-bar__sep {
  color: var(--text-muted);
  user-select: none;
}

.product-context-bar__product {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
}

.product-context-subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.product-context-subnav__btn {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: var(--btn-secondary-bg);
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background var(--transition-duration), border-color var(--transition-duration);
}

.product-context-subnav__btn:hover {
  background: var(--accent-subtle);
  border-color: var(--accent);
}

.product-context-subnav__btn--active {
  background: var(--tab-active-bg);
  color: var(--tab-active-text);
  border-color: var(--tab-active-bg);
  font-weight: 600;
}

/* Research AI product header inside hub */
.rph-product-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
  padding: 2px 0 10px;
  margin: 0;
}

.rph-product-header__back {
  margin-left: auto;
}

.rph-product-header__sep {
  color: var(--text-muted);
}

.rph-product-header__title {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
}

/* Coming soon workspace cards in project hub */
.rph-workspace-card--soon {
  opacity: 0.85;
  border-style: dashed;
  cursor: pointer;
}

.rph-workspace-card--soon .rph-workspace-card__badge {
  display: inline-block;
  margin-top: 6px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(245, 158, 11, 0.15);
  color: #d97706;
  border: 1px solid rgba(245, 158, 11, 0.35);
}

/* Placeholder workspaces */
.workspace-coming-soon {
  max-width: 640px;
  margin: 24px auto;
  padding: 32px 24px;
  text-align: center;
  border-radius: var(--card-radius);
  border: 1px dashed var(--card-border);
  background: var(--card-bg);
}

.workspace-coming-soon__icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.workspace-coming-soon__title {
  margin: 0 0 8px;
  font-size: 1.35rem;
}

.workspace-coming-soon__desc {
  margin: 0 0 20px;
  color: var(--text-muted);
}

.library-header-subtitle {
  margin: 4px 0 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 400;
}

@media (max-width: 720px) {
  .launcher-grid {
    grid-template-columns: 1fr;
  }

  .product-context-subnav {
    gap: 6px;
  }

  .product-context-subnav__btn {
    font-size: 0.8rem;
    padding: 5px 10px;
  }
}

/* Global header — product identity (Phase 2) */
html[data-active-product="research"] .main-header-row {
  border-bottom: 2px solid #0f766e;
  padding-bottom: 12px;
  margin-bottom: 4px;
}

html[data-active-product="math"] .main-header-row {
  border-bottom: 2px solid #2563eb;
  padding-bottom: 12px;
  margin-bottom: 4px;
}

html[data-active-product="library"] .main-header-row {
  border-bottom: 2px solid #7c3aed;
  padding-bottom: 12px;
  margin-bottom: 4px;
}

html[data-active-product="research"] .math-conventions-mount {
  display: none;
}

.rph-product-banner {
  margin: 0 0 16px;
  padding: 12px 16px;
  border-radius: var(--card-radius);
  border: 1px solid color-mix(in srgb, #0f766e 35%, var(--card-border));
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.12) 0%, var(--card-bg) 100%);
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.45;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.product-banner {
  margin: 0 0 12px;
  padding: 12px 16px;
  border-radius: var(--card-radius);
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.45;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.product-banner__text {
  margin: 0;
  flex: 1;
  min-width: 0;
}

.product-banner__dismiss {
  flex-shrink: 0;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 6px;
  transition: background var(--transition-duration), color var(--transition-duration);
}

.product-banner__dismiss:hover {
  background: var(--btn-secondary-bg);
  color: var(--text);
}

.product-banner[hidden],
.rph-product-banner[hidden] {
  display: none !important;
}

.product-banner--compact {
  padding: 10px 14px;
  font-size: 0.88rem;
  margin-bottom: 10px;
}

.product-banner--math {
  border: 1px solid color-mix(in srgb, #2563eb 35%, var(--card-border));
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, var(--card-bg) 100%);
}

.product-banner--library {
  border: 1px solid color-mix(in srgb, #7c3aed 35%, var(--card-border));
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, var(--card-bg) 100%);
}

.subtitle--author {
  font-size: 0.82rem;
  margin-top: 4px;
}

/* Launcher — stronger text on white/light cards */
html[data-theme="light"] .launcher-card__title {
  color: #111827;
}

html[data-theme="light"] .launcher-card__desc,
html[data-theme="light"] .launcher-card__used-by {
  color: #374151;
}

html[data-theme="light"] .launcher-card__chip {
  color: #374151;
  background: color-mix(in srgb, #111827 6%, var(--card-bg));
  border-color: color-mix(in srgb, #374151 24%, var(--card-border));
}

html[data-theme="light"] .launcher-card__recent-label {
  color: #4b5563;
}

html[data-theme="light"] .subtitle.subtitle--author {
  color: #4b5563;
}