/* Generic Tool Page Layout (gtool-*) */

:root {
  --gtool-max-width: 1400px;
  --gtool-gap: 1.25rem;
  --gtool-radius: 16px;
  --gtool-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
  --gtool-sidecar-width: 420px;
  --gtool-backdrop: rgba(0, 0, 0, 0.45);
}

body {
  height: calc(var(--vh, 1vh) * 100);
  overflow: hidden; /* no page-level scroll on tool pages */
  display: flex;
  flex-direction: column;
  min-height: 0; /* allow children to shrink for internal scroll */
}

.dark {
  --gtool-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

.gtool-page {
  padding: 16px 0;
  flex: 1;
  min-height: 0;
  overflow: hidden; /* keep scroll inside tool panels */
}


.gtool-layout {
  max-width: var(--gtool-max-width);
  margin: 0 auto;
  padding: 0 1rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* Header */
.gtool-header {
  position: relative;
  z-index: 2;
}

.gtool-header-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--gtool-radius) var(--gtool-radius) 0 0;
  padding: 16px;
  cursor: pointer;
  user-select: none;
}

.gtool-header-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
}

.gtool-title-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex: 0 0 auto;
}

.gtool-title-icon i {
  font-size: 1.25rem;
}

.gtool-title-block {
  min-width: 0;
  text-align: left;
}

@media (max-width: 768px) {
  .gtool-title-block {
    text-align: left;
  }
}

.gtool-title {
  margin: 0;
  font-size: 18px;
  font-weight: 750;
  color: var(--text-primary);
  line-height: 1.1;
}

.gtool-subtitle {
  margin: 0.35rem 0 0 0;
  color: var(--text-secondary);
  font-size: 12px;
}

@media (max-width: 768px) {
  .gtool-subtitle {
    font-size: 10px;
  }
}

.gtool-header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 0 0 auto;
}

.gtool-picker-toggle {
  border: none;
  background: transparent;
  color: var(--text-primary);
  border-radius: 12px;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}

.gtool-header-card:focus,
.gtool-header-card:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.20), var(--gtool-shadow);
}

.gtool-header-card:hover {
  border-color: rgba(59, 130, 246, 0.6);
}

.gtool-picker-toggle:hover {
  background: var(--bg-tertiary);
  border-color: var(--link-color);
  transform: translateY(-1px);
}

.gtool-picker-toggle-icon {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 1px;
  line-height: 1;
  opacity: 0.9;
}

.gtool-picker-toggle-icon i {
  font-size: 0.75rem;
}

/* Main content */
.gtool-main {
  position: relative;
  z-index: 1;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.gtool-content {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

/* ===== Generic content patterns ===== */

/* ===== Segmented toggle (chat-style) =====
   IMPORTANT: This intentionally does NOT touch chat classes.
*/
.gtool-seg-toggle {
  display: flex;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 4px;
  gap: 4px;
}

.gtool-seg-toggle-btn {
  flex: 1;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
  user-select: none;
}

.gtool-seg-toggle-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

.gtool-seg-toggle-btn.is-active {
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
  color: white;
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
}

.gtool-seg-toggle-btn.active {
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
  color: white;
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
}

.gtool-seg-toggle-btn i {
  font-size: 0.875rem;
}

.gtool-seg-toggle-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.22);
}

.gtool-seg-toggle--sm {
  border-radius: 10px;
  padding: 3px;
  gap: 3px;
}

.gtool-seg-toggle--sm .gtool-seg-toggle-btn {
  padding: 0.55rem 0.75rem;
  border-radius: 9px;
  font-size: 0.9rem;
}

/* Input/Output */
.gtool-io {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0 0 var(--gtool-radius) var(--gtool-radius);
  box-shadow: var(--gtool-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 520px;
}

.gtool-io-toggle {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.gtool-io-actions {
  margin-left: auto;
}

.gtool-io-copy {
  padding: 0.55rem 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.gtool-io-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.gtool-io-view {
  display: none;
  flex: 1;
  padding: 1rem;
  min-height: 0;
}

.gtool-io-view.is-active {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.gtool-io-textarea {
  flex: 1;
  width: 100%;
  min-height: 280px;
  resize: none;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 1rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.gtool-io-textarea:focus {
  outline: none;
  border-color: var(--link-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

.gtool-io-primary-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

.gtool-io-generate {
  padding: 0.85rem 1.1rem;
  border-radius: 14px;
  border: none;
  cursor: pointer;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.gtool-io-settings {
  padding: 0.85rem 1.1rem;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.gtool-io-settings:hover {
  border-color: var(--link-color);
}

.gtool-io-generate:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  box-shadow: none;
}

.gtool-io-generate-spinner {
  display: none;
}

.gtool-io-output {
  flex: 1;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 1rem;
  overflow: auto;
  min-height: 280px;
}

.gtool-io-output.empty {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-style: italic;
}

/* Chat */
.gtool-chat {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0 0 var(--gtool-radius) var(--gtool-radius);
  box-shadow: var(--gtool-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.gtool-chat-messages {
  flex: 1;
  padding: 1rem;
  overflow: auto;
  background: var(--bg-secondary);
}

.gtool-chat-empty {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-style: italic;
  text-align: center;
}

.gtool-chat-input {
  display: flex;
  gap: 0.75rem;
  padding: 0.85rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-primary);
}

.gtool-chat-input-field {
  flex: 1;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 0.85rem 0.95rem;
  font-size: 0.95rem;
}

.gtool-chat-input-field:focus {
  outline: none;
  border-color: var(--link-color);
}

.gtool-chat-send {
  border: none;
  border-radius: 14px;
  padding: 0.85rem 1.1rem;
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.gtool-chat-send:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.gtool-chat-send-spinner {
  display: none;
  animation: gtoolSpin 1s linear infinite;
}

@keyframes gtoolSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Sidecar (desktop slide-out) */
.gtool-sidecar {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: min(var(--gtool-sidecar-width), 92vw);
  transform: translateX(105%);
  transition: transform 220ms ease;
  z-index: 60;
  box-sizing: border-box;
  pointer-events: none;
  padding: 12px 0;
}

.gtool-page.gtool-sidecar-open .gtool-sidecar {
  transform: translateX(0);
  pointer-events: auto;
}

.gtool-sidecar-panel {
  height: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px 0  0 16px;
  box-shadow: var(--gtool-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.gtool-sidecar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.gtool-sidecar-title {
  font-weight: 650;
  color: var(--text-primary);
}

.gtool-sidecar-close {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  cursor: pointer;
}

.gtool-sidecar-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.gtool-sidecar-body {
  padding: 0 1rem;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.gtool-sidecar-toggle {
  position: fixed;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 55;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  box-shadow: var(--gtool-shadow);
  cursor: pointer;
}

.gtool-sidecar-toggle:hover {
  border-color: var(--link-color);
}

/* Backdrop */
.gtool-backdrop {
  position: fixed;
  inset: 0;
  background: var(--gtool-backdrop);
  z-index: 50;
  opacity: 0;
  transition: opacity 200ms ease;
}

.gtool-backdrop[hidden] {
  display: none !important;
}

.gtool-page.gtool-backdrop-visible .gtool-backdrop {
  opacity: 1;
}

/* Picker overlay */
.gtool-picker-overlay {
  position: fixed;
  inset: 0;
  z-index: 65;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  box-sizing: border-box;
}

.gtool-picker-overlay[hidden] {
  display: none !important;
}

.gtool-picker-surface {
  width: min(520px, 92vw);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  box-shadow: var(--gtool-shadow);
  padding: 12px 12px 16px 12px;
}

.gtool-picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 6px 6px 10px 6px;
}

.gtool-picker-title {
  font-weight: 650;
  color: var(--text-primary);
}

.gtool-picker-close {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
}

.gtool-picker-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.gtool-picker-wheel-wrap {
  padding: 0 6px;
}

.gtool-picker-wheel-viewport {
  position: relative;
  border-radius: 16px;
  overflow-y: auto;
  overflow-x: hidden;
  scroll-snap-type: y mandatory;
  padding: 8px 4px;
}

.gtool-picker-wheel-viewport::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 999px;
}

.gtool-picker-wheel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.gtool-picker-item {
  position: relative;
  width: 100%;
  scroll-snap-align: center;
}

.gtool-picker-item-inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.75rem;
  height: 48px;
  color: var(--text-primary);
  font-weight: 600;
  padding: 0 14px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  opacity: 0.85;
  transition: opacity 150ms ease, border-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.gtool-picker-item.is-selected .gtool-picker-item-inner {
  opacity: 1;
  border-color: rgba(59, 130, 246, 0.7);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.16);
  transform: translateY(-1px);
}

.gtool-picker-item-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex: 0 0 auto;
}

.gtool-picker-item-name {
  max-width: 70%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.gtool-picker-selection-frame {
  display: none;
}

.gtool-picker-fade {
  display: none;
}

.gtool-picker-fade-top {
  top: 0;
  background: linear-gradient(to bottom, var(--bg-primary) 0%, rgba(0,0,0,0) 100%);
}

.gtool-picker-fade-bottom {
  bottom: 0;
  background: linear-gradient(to top, var(--bg-primary) 0%, rgba(0,0,0,0) 100%);
}

.gtool-picker-hint {
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-align: center;
}

/* Mobile: bottom sheet sidecar */
@media (max-width: 768px) {
  .gtool-layout {
    padding: 0 0.75rem;
  }

  .gtool-title {
    font-size: 1.35rem;
  }

  .gtool-title-icon {
    width: 42px;
    height: 42px;
  }

  .gtool-sidecar-toggle {
    right: 12px;
    top: auto;
    bottom: 18px;
    transform: none;
  }

  .gtool-sidecar {
    top: auto;
    bottom: 0;
    right: 0;
    left: 0;
    width: 100%;
    height: 70vh;
    padding: 0;
    transform: translateY(105%);
    transition: transform 240ms ease;
    pointer-events: none;
  }

  .gtool-page.gtool-sidecar-open .gtool-sidecar {
    transform: translateY(0);
    pointer-events: auto;
  }

  .gtool-sidecar-panel {
    border-radius: 18px 18px 0 0;
  }
}