/* cards.css — Tool cards list and card items */

/* Tool Cards List (single-column) */
.tool-cards-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  max-width: 560px;
  width: 100%;
  margin: 0 auto;
}

/* Section divider between available and unavailable tools */
.tool-cards-divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  color: var(--text-muted);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tool-cards-divider::before,
.tool-cards-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-default);
}

/* Card base */
.tool-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--surface-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  cursor: pointer;
  min-height: 64px;
  transition:
    background-color var(--duration-fast) var(--ease-default),
    border-color var(--duration-fast) var(--ease-default),
    box-shadow var(--duration-fast) var(--ease-default),
    transform var(--duration-fast) var(--ease-default);
}

/* Hover — default accent tint */
.tool-card:hover:not(.disabled) {
  background: var(--surface-elevated);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* Per-tool brand color hover tints (tokens shared with the tab badges) */
.tool-card[data-tool="terminal"]:hover:not(.disabled) {
  border-color: rgba(var(--tool-terminal-rgb), 0.5);
  background: rgba(var(--tool-terminal-rgb), 0.08);
}
.tool-card[data-tool="claude"]:hover:not(.disabled) {
  border-color: rgba(var(--tool-claude-rgb), 0.5);
  background: rgba(var(--tool-claude-rgb), 0.08);
}
.tool-card[data-tool="codex"]:hover:not(.disabled) {
  border-color: rgba(var(--tool-codex-rgb), 0.5);
  background: rgba(var(--tool-codex-rgb), 0.08);
}
.tool-card[data-tool="copilot"]:hover:not(.disabled) {
  border-color: rgba(var(--tool-copilot-rgb), 0.5);
  background: rgba(var(--tool-copilot-rgb), 0.08);
}
.tool-card[data-tool="gemini"]:hover:not(.disabled) {
  border-color: rgba(var(--tool-gemini-rgb), 0.5);
  background: rgba(var(--tool-gemini-rgb), 0.08);
}

/* Focus visible for keyboard navigation */
.tool-card:focus-visible {
  outline: 2px solid var(--accent-default);
  outline-offset: 2px;
}

/* Active/pressed state */
.tool-card:active:not(.disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Disabled card (legacy fallback) */
.tool-card.disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Installable card — unavailable but interactive */
.tool-card.installable {
  opacity: 0.65;
  cursor: pointer;
}

.tool-card.installable:hover {
  opacity: 0.8;
  border-color: var(--border-hover);
  background: var(--surface-elevated);
}

/* Per-tool brand color hover for installable cards (softer than available) */
.tool-card.installable[data-tool="claude"]:hover {
  border-color: rgba(var(--tool-claude-rgb), 0.3);
  background: rgba(var(--tool-claude-rgb), 0.04);
}
.tool-card.installable[data-tool="codex"]:hover {
  border-color: rgba(var(--tool-codex-rgb), 0.3);
  background: rgba(var(--tool-codex-rgb), 0.04);
}
.tool-card.installable[data-tool="copilot"]:hover {
  border-color: rgba(var(--tool-copilot-rgb), 0.3);
  background: rgba(var(--tool-copilot-rgb), 0.04);
}
.tool-card.installable[data-tool="gemini"]:hover {
  border-color: rgba(var(--tool-gemini-rgb), 0.3);
  background: rgba(var(--tool-gemini-rgb), 0.04);
}

/* Expanded state */
.tool-card.installable[aria-expanded="true"] {
  opacity: 0.85;
  border-color: var(--border-hover);
}

/* Desaturate icon for installable cards */
.tool-card.installable .tool-card-icon {
  filter: grayscale(0.6) brightness(0.85);
}

.tool-card.installable:hover .tool-card-icon,
.tool-card.installable[aria-expanded="true"] .tool-card-icon {
  filter: grayscale(0.3) brightness(0.9);
}

/* Staggered entry animation */
.tool-card-enter {
  animation: toolCardFadeIn var(--duration-slow) var(--ease-out) both;
}

@keyframes toolCardFadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Icon container with gradient background and glassy highlight */
.tool-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.tool-card-icon::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
  pointer-events: none;
}

/* Desaturate icon for disabled cards (legacy) */
.tool-card.disabled .tool-card-icon {
  filter: grayscale(1) brightness(0.7);
}

/* Card info */
.tool-card-info {
  flex: 1;
  min-width: 0;
}

.tool-card-name {
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
  line-height: var(--leading-tight);
}

.tool-card-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: var(--space-0-5);
  line-height: var(--leading-normal);
}

/* Install hint for disabled tool cards */
.tool-card-hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-1);
  font-family: var(--font-mono);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Hover-reveal right arrow chevron for available cards */
.tool-card-arrow {
  flex-shrink: 0;
  color: var(--text-muted);
  opacity: 0;
  transform: translateX(-4px);
  transition:
    opacity var(--duration-fast) var(--ease-default),
    transform var(--duration-fast) var(--ease-default);
}

.tool-card:hover:not(.disabled) .tool-card-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* "Not installed" status label for disabled/installable cards */
.tool-card-status {
  flex-shrink: 0;
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--text-muted);
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

/* Chevron rotates when expanded */
.tool-card-status .expand-chevron {
  display: inline-block;
  transition: transform var(--duration-fast) var(--ease-default);
  margin-left: 4px;
}

.tool-card.installable[aria-expanded="true"] .tool-card-status .expand-chevron {
  transform: rotate(180deg);
}

/* === Expansion panel for installable cards === */
.tool-card-expansion {
  width: 100%;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-default),
              opacity var(--duration-normal) var(--ease-default),
              padding var(--duration-normal) var(--ease-default);
  opacity: 0;
  background: var(--surface-primary);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  border: 1px solid var(--border-default);
  border-top: none;
  margin-top: -1px; /* overlap card bottom border */
}

.tool-card-expansion.expanded {
  max-height: 400px;
  opacity: 1;
  padding: var(--space-3) var(--space-4);
}

/* Install command code block */
.install-cmd-block {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--surface-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-2);
}

.install-cmd-block code {
  flex: 1;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  user-select: all;
}

.install-cmd-block .btn-copy {
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  transition: all var(--duration-fast) var(--ease-default);
  white-space: nowrap;
}

.install-cmd-block .btn-copy:hover {
  background: var(--surface-elevated);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.install-cmd-block .btn-copy.copied {
  color: var(--status-success, #22c55e);
  border-color: var(--status-success, #22c55e);
}

/* Auth steps */
.install-auth-steps {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border-default);
}

.install-auth-steps .auth-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.install-auth-step {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  padding: var(--space-1) 0;
}

.install-auth-step code {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  background: var(--surface-secondary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  user-select: all;
}

.install-auth-step a {
  color: var(--accent-default);
  text-decoration: none;
}

.install-auth-step a:hover {
  text-decoration: underline;
}

/* Action buttons row */
.install-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.btn-install-terminal {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  background: var(--accent-default);
  color: var(--surface-primary);
  border: none;
  cursor: pointer;
  padding: var(--space-1-5) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  transition: opacity var(--duration-fast) var(--ease-default);
}

.btn-install-terminal:hover {
  opacity: 0.9;
}

.btn-verify {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  background: none;
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--space-1-5) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  transition: all var(--duration-fast) var(--ease-default);
}

.btn-verify:hover {
  background: var(--surface-elevated);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.btn-verify.success {
  color: var(--status-success, #22c55e);
  border-color: var(--status-success, #22c55e);
}

/* Prerequisite warning */
.install-prereq-warning {
  font-size: var(--text-xs);
  color: var(--status-warning, #eab308);
  margin-bottom: var(--space-2);
  display: flex;
  align-items: flex-start;
  gap: var(--space-1);
}

.install-prereq-warning a {
  color: var(--accent-default);
  text-decoration: none;
}

.install-prereq-warning a:hover {
  text-decoration: underline;
}

/* Docs link */
.install-docs-link {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-2);
}

.install-docs-link a {
  color: var(--accent-default);
  text-decoration: none;
}

.install-docs-link a:hover {
  text-decoration: underline;
}

/* Method note */
.install-method-note {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-0-5);
  font-style: italic;
}

/* Start prompt heading */
.start-prompt-heading {
  font-size: var(--text-2xl);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: var(--leading-tight);
  margin-bottom: var(--space-2);
}

/* Machine-identity chip — reads like a live terminal status badge */
.start-prompt-identity {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  background: var(--surface-secondary);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
}
.start-prompt-identity[hidden] { display: none; }
.start-prompt-identity-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--status-success);
  flex: 0 0 auto;
}

/* Start prompt subtitle */
.start-prompt-subtitle {
  color: var(--text-muted);
  font-size: var(--text-md);
  margin-bottom: var(--space-4);
  line-height: var(--leading-normal);
}

/* Mobile responsive */
@media (max-width: 480px) {
  .tool-cards-list {
    max-width: 100%;
    gap: var(--space-1-5);
    padding: var(--space-3) 0;
  }
  .tool-card {
    min-height: 56px;
    padding: var(--space-2-5) var(--space-3);
  }
  .tool-card-icon {
    width: 36px;
    height: 36px;
  }
  .tool-card-icon svg {
    width: 18px;
    height: 18px;
  }
}