/* Unified UI foundation for production pages. */
:root {
  --ui-page: #f4f6f5;
  --ui-surface: #ffffff;
  --ui-surface-subtle: #f8faf9;
  --ui-text: #17211d;
  --ui-text-secondary: #66736d;
  --ui-text-muted: #8c9892;
  --ui-border: #dfe5e2;
  --ui-border-strong: #cbd4d0;
  --ui-primary: #0e8f6c;
  --ui-primary-hover: #0a7659;
  --ui-primary-soft: #e5f5ef;
  --ui-danger: #c53b3b;
  --ui-warning: #a86610;
  --ui-radius-sm: 6px;
  --ui-radius-md: 8px;
  --ui-radius-lg: 10px;
  --ui-shadow-sm: 0 1px 2px rgba(16, 35, 27, 0.06);
  --ui-shadow-md: 0 8px 24px rgba(16, 35, 27, 0.08);
  --ui-space-1: 4px;
  --ui-space-2: 8px;
  --ui-space-3: 12px;
  --ui-space-4: 16px;
  --ui-space-5: 24px;
}

html {
  background: var(--ui-page);
}

body.ui-system {
  background: var(--ui-page) !important;
  color: var(--ui-text) !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif !important;
  letter-spacing: 0 !important;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.ui-system::before {
  display: none !important;
}

body.ui-system,
body.ui-system :where(button, input, textarea, select) {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif !important;
  letter-spacing: 0 !important;
}

body.ui-system :where(button, .btn, [role="button"], a) {
  -webkit-tap-highlight-color: transparent;
}

body.ui-system :where(button, .btn, [role="button"]) {
  min-height: 40px;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, opacity 160ms ease, transform 160ms ease !important;
}

body.ui-system :where(
  .btn, .primary-btn, .secondary-btn, .ghost-btn, .action-btn,
  .generate-btn, .quota-btn, .header-tab, .nav-link, .sidebar-item,
  .store-modal-btn, .quickgen-case-btn
) {
  border-radius: var(--ui-radius-md) !important;
}

body.ui-system :where(
  .btn-primary, .primary-btn, .generate-btn, .quota-btn,
  button[type="submit"]
) {
  background: var(--ui-primary) !important;
  color: #fff !important;
  border-color: var(--ui-primary) !important;
  box-shadow: none !important;
}

body.ui-system :where(
  .btn-primary, .primary-btn, .generate-btn, .quota-btn,
  button[type="submit"]
):not(:disabled):hover {
  background: var(--ui-primary-hover) !important;
  transform: translateY(-1px);
}

body.ui-system :where(.btn-secondary, .secondary-btn, .ghost-btn) {
  background: var(--ui-surface) !important;
  color: var(--ui-text-secondary) !important;
  border-color: var(--ui-border) !important;
  box-shadow: none !important;
}

body.ui-system :where(input, textarea, select, .input, .form-input, .form-select, .form-textarea, .search-input) {
  border-radius: var(--ui-radius-md) !important;
  border-color: var(--ui-border) !important;
  background: var(--ui-surface) !important;
  color: var(--ui-text) !important;
  box-shadow: none !important;
}

body.ui-system :where(input, textarea, select, button, a, [tabindex]):focus-visible {
  outline: 2px solid var(--ui-primary) !important;
  outline-offset: 2px !important;
}

body.ui-system :where(input, textarea, select):focus {
  border-color: var(--ui-primary) !important;
  box-shadow: 0 0 0 3px rgba(14, 143, 108, 0.12) !important;
}

body.ui-system :where(
  .card, .case-card, .template-card, .task-card, .work-card,
  .form-card, .quota-card, .stats-card, .result-card, .panel-card,
  .modal-content, .detail-content
) {
  border-radius: var(--ui-radius-md) !important;
  border-color: var(--ui-border) !important;
  background-color: var(--ui-surface) !important;
  box-shadow: var(--ui-shadow-sm) !important;
}

body.ui-system :where(.top-header, .main-nav, .mobile-header, .header, .top) {
  border-color: var(--ui-border) !important;
  background-color: rgba(255, 255, 255, 0.96) !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

body.ui-system ::selection {
  background: #ccebe0;
  color: #10251d;
}

body.ui-system * {
  scrollbar-color: #bdc9c4 transparent;
  scrollbar-width: thin;
}

/* Image generation workspace */
body.quickgen-workspace {
  --quickgen-shell-height: 100dvh;
  height: var(--quickgen-shell-height) !important;
  min-height: 0 !important;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: #f3f5f4 !important;
}

.quickgen-workspace .quickgen-header {
  flex: 0 0 auto;
  min-height: 64px;
  padding: 8px 20px;
  border-bottom: 1px solid var(--ui-border) !important;
}

.quickgen-workspace .header-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ui-text);
  text-decoration: none;
}

.quickgen-workspace .header-logo-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  border-radius: var(--ui-radius-md);
  color: #fff;
  background: var(--ui-primary);
}

.quickgen-workspace .header-logo-mark svg,
.quickgen-workspace .quickgen-case-btn svg,
.quickgen-workspace .btn-upload svg,
.quickgen-workspace .btn-send svg {
  width: 18px;
  height: 18px;
  display: block;
}

.quickgen-workspace .header-logo strong,
.quickgen-workspace .header-logo small {
  display: block;
  letter-spacing: 0;
}

.quickgen-workspace .header-logo strong {
  font-size: 15px;
  line-height: 1.25;
}

.quickgen-workspace .header-logo small {
  margin-top: 2px;
  color: var(--ui-text-secondary);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.2;
}

.quickgen-workspace .quickgen-header nav a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  border-radius: var(--ui-radius-sm) !important;
  color: var(--ui-text-secondary);
  font-size: 13px;
  font-weight: 600;
}

.quickgen-workspace .quickgen-header nav a.active {
  color: var(--ui-primary) !important;
  background: var(--ui-primary-soft) !important;
}

.quickgen-workspace .chat-container {
  min-height: 0;
  flex: 1 1 auto;
  width: min(100%, 820px);
  max-width: 820px;
  margin: 0 auto;
  overflow: hidden;
  border-inline: 1px solid var(--ui-border);
  background: var(--ui-surface-subtle) !important;
}

.quickgen-workspace .chat-messages {
  min-height: 0;
  flex: 1 1 auto;
  padding: 20px 20px 24px !important;
  scroll-padding-bottom: 24px !important;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.quickgen-workspace .quickgen-showcase {
  width: 100%;
  padding: 16px;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-lg) !important;
  background: var(--ui-surface) !important;
  box-shadow: var(--ui-shadow-sm) !important;
}

.quickgen-workspace .quickgen-showcase-title {
  color: var(--ui-text);
  font-size: 17px;
  font-weight: 750;
  letter-spacing: 0;
}

.quickgen-workspace .quickgen-showcase-desc {
  color: var(--ui-text-secondary);
  font-size: 12px;
  line-height: 1.5;
}

.quickgen-workspace .quickgen-showcase-tip {
  color: var(--ui-primary);
}

.quickgen-workspace .quickgen-orbit {
  height: 196px;
  border-radius: var(--ui-radius-md);
  background: #eef2f0;
}

.quickgen-workspace .orbit-card {
  border-radius: var(--ui-radius-sm);
  box-shadow: 0 10px 28px rgba(19, 40, 31, 0.14);
}

.quickgen-workspace .quickgen-showcase-actions {
  align-items: stretch;
}

.quickgen-workspace .quickgen-case-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 42px;
  padding: 0 14px;
  color: #fff;
  background: var(--ui-primary) !important;
  box-shadow: none !important;
  font-size: 13px;
  font-weight: 700;
}

.quickgen-workspace .quickgen-case-btn.secondary {
  color: var(--ui-text-secondary) !important;
  border: 1px solid var(--ui-border) !important;
  background: var(--ui-surface) !important;
}

.quickgen-workspace .quickgen-case-btn.case-nav-btn {
  flex: 0 0 42px;
  width: 42px;
  padding: 0;
}

.quickgen-workspace .msg {
  max-width: min(82%, 620px);
  padding: 10px 12px;
  border-radius: var(--ui-radius-md) !important;
  font-size: 14px;
  line-height: 1.55;
}

.quickgen-workspace .msg.ai {
  border-color: var(--ui-border) !important;
  background: var(--ui-surface) !important;
  box-shadow: var(--ui-shadow-sm) !important;
}

.quickgen-workspace .msg.user {
  color: #fff;
  background: var(--ui-primary) !important;
}

.quickgen-workspace .msg.sys,
.quickgen-workspace .msg.err {
  border: 1px solid var(--ui-border);
  background: #fff !important;
  color: var(--ui-text-secondary) !important;
}

.quickgen-workspace .msg.err {
  border-color: #ecd1d1;
  color: var(--ui-danger) !important;
}

.quickgen-workspace .msg-time {
  display: block;
  margin: 0 0 4px;
  color: var(--ui-text-muted) !important;
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.quickgen-workspace .msg.user .msg-time {
  color: rgba(255, 255, 255, 0.72) !important;
}

.quickgen-workspace .chat-input-area {
  position: relative;
  flex: 0 0 auto;
  padding: 10px 20px calc(10px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--ui-border) !important;
  background: rgba(255, 255, 255, 0.98) !important;
}

.quickgen-workspace .attachment-strip {
  margin-bottom: 8px;
}

.quickgen-workspace .attachment-item,
.quickgen-workspace .attachment-add {
  border-radius: var(--ui-radius-md);
  border-color: var(--ui-border);
}

.quickgen-workspace .chat-input-wrapper {
  align-items: flex-end;
  gap: 8px;
  padding: 5px;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-lg);
  background: var(--ui-surface);
  box-shadow: 0 4px 14px rgba(19, 40, 31, 0.07);
}

.quickgen-workspace .chat-input-wrapper:focus-within {
  border-color: var(--ui-primary);
  box-shadow: 0 0 0 3px rgba(14, 143, 108, 0.11);
}

.quickgen-workspace .chat-input {
  min-height: 42px;
  max-height: 112px;
  padding: 10px 6px 9px;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  font-size: 16px;
  line-height: 1.4;
}

.quickgen-workspace .btn-upload,
.quickgen-workspace .btn-send {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  width: 42px;
  height: 42px;
  min-height: 42px;
  padding: 0;
  border-radius: var(--ui-radius-md) !important;
  box-shadow: none !important;
}

.quickgen-workspace .btn-upload {
  border: 0 !important;
  color: var(--ui-text-secondary);
  background: #eef2f0 !important;
}

.quickgen-workspace .btn-send {
  border: 0 !important;
  color: #fff;
  background: var(--ui-primary) !important;
}

.quickgen-workspace .btn-send span {
  display: none;
}

.quickgen-workspace .btn-send:disabled {
  color: #8b9691;
  background: #e7ebe9 !important;
  opacity: 1;
}

.quickgen-workspace .action-bar {
  gap: 8px;
  max-width: 760px;
  margin: 8px auto 0;
}

.quickgen-workspace .action-btn {
  min-height: 40px;
  padding: 0 14px;
  border-radius: var(--ui-radius-md) !important;
  font-size: 13px;
  font-weight: 700;
}

.quickgen-workspace .generation-stage,
.quickgen-workspace .generation-status-card,
.quickgen-workspace .progress-box.compact-progress {
  border-color: var(--ui-border) !important;
  border-radius: var(--ui-radius-md) !important;
  background: var(--ui-surface) !important;
  box-shadow: var(--ui-shadow-sm) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.quickgen-workspace .generation-stage-frame {
  border-radius: var(--ui-radius-sm);
}

/* One restrained light progress language for three generation personas. */
.quickgen-workspace .trio-progress-msg {
  width: min(100%, 520px) !important;
  max-width: 100% !important;
}

.quickgen-workspace .trio-compact-wrap {
  min-width: 0;
  max-width: 520px;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-md);
  background: var(--ui-surface);
  box-shadow: var(--ui-shadow-sm);
}

.quickgen-workspace .trio-compact-wrap::before,
.quickgen-workspace .trio-compact-wrap::after {
  display: none;
}

.quickgen-workspace .tcr-head,
.quickgen-workspace .tcr-footer {
  z-index: auto;
  color: var(--ui-text-secondary);
  background: var(--ui-surface-subtle);
  border-color: var(--ui-border);
  font-family: inherit;
  letter-spacing: 0;
}

.quickgen-workspace .tcr-head-icon {
  width: 28px;
  height: 28px;
  color: #fff;
  border-radius: var(--ui-radius-sm);
  background: var(--ui-primary);
  box-shadow: none;
}

.quickgen-workspace .tcr-head-title {
  color: var(--ui-text);
  font-family: inherit;
  letter-spacing: 0;
}

.quickgen-workspace .tcr-head-divider {
  background: var(--ui-border);
}

.quickgen-workspace .tcr-head-stats,
.quickgen-workspace .tcr-footer,
.quickgen-workspace .tcr-exit,
.quickgen-workspace .tcr-scheme-pct,
.quickgen-workspace .tcr-combo-pct {
  color: var(--ui-text-secondary);
  font-family: inherit;
  text-shadow: none;
  letter-spacing: 0;
}

.quickgen-workspace .tcr-head-stats strong {
  color: var(--ui-primary);
  text-shadow: none;
}

.quickgen-workspace .tcr-schemes {
  display: grid;
  gap: 8px;
  padding: 10px;
}

.quickgen-workspace .tcr-scheme {
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-sm);
  background: var(--ui-surface);
  backdrop-filter: none;
}

.quickgen-workspace .tcr-scheme[data-state="running"],
.quickgen-workspace .tcr-scheme[data-state="done"] {
  border-color: #b9dacf;
  background: #f7fcfa;
  box-shadow: none;
}

.quickgen-workspace .tcr-scheme[data-state="failed"] {
  border-color: #ecd1d1;
  background: #fffafa;
}

.quickgen-workspace .tcr-scheme-head {
  margin-bottom: 8px;
}

.quickgen-workspace .tcr-scheme-badge,
.quickgen-workspace .tcr-combo-tag {
  border-color: #c7e3d9;
  border-radius: 4px;
  color: var(--ui-primary);
  background: var(--ui-primary-soft);
  font-family: inherit;
  letter-spacing: 0;
}

.quickgen-workspace .tcr-scheme-badge::before {
  background: var(--ui-primary);
  box-shadow: none;
}

.quickgen-workspace .tcr-scheme-text {
  color: var(--ui-text);
}

.quickgen-workspace .tcr-scheme-bar,
.quickgen-workspace .tcr-combo-bar {
  background: #e7ece9;
}

.quickgen-workspace .tcr-scheme-fill,
.quickgen-workspace .tcr-combo-fill,
.quickgen-workspace .tcr-scheme[data-state="done"] .tcr-scheme-fill,
.quickgen-workspace .tcr-combo[data-state="done"] .tcr-combo-fill {
  background: var(--ui-primary);
  box-shadow: none;
}

.quickgen-workspace .tcr-scheme-fill::after,
.quickgen-workspace .tcr-combo-fill::after {
  opacity: 0.45;
}

.quickgen-workspace .tcr-step-node,
.quickgen-workspace .tcr-combo .tcr-step-node {
  background: #edf1ef;
  border-color: #d8dfdc;
}

.quickgen-workspace .tcr-step-node.active,
.quickgen-workspace .tcr-step-node.done,
.quickgen-workspace .tcr-combo .tcr-step-node.active,
.quickgen-workspace .tcr-combo .tcr-step-node.done {
  border-color: var(--ui-primary);
  background: var(--ui-primary);
  box-shadow: none;
}

.quickgen-workspace .tcr-step-line,
.quickgen-workspace .tcr-combo .tcr-step-line {
  background: #e2e8e5;
}

.quickgen-workspace .tcr-step-line.done,
.quickgen-workspace .tcr-combo .tcr-step-line.done {
  background: #a9d4c5;
}

.quickgen-workspace .tcr-step-label,
.quickgen-workspace .tcr-step-label .tcr-step-arrow,
.quickgen-workspace .tcr-combo .tcr-step-label,
.quickgen-workspace .tcr-combo .tcr-step-label .tcr-step-arrow {
  color: var(--ui-text-secondary);
  letter-spacing: 0;
}

.quickgen-workspace .tcr-combo {
  border-color: var(--ui-border);
}

.quickgen-workspace .tcr-combo-head::before {
  color: var(--ui-primary);
}

.quickgen-workspace .tcr-footer-dot {
  background: var(--ui-primary);
  box-shadow: none;
}

.quickgen-workspace .tcr-exit {
  display: grid;
  place-items: center;
  min-height: 28px;
  width: 28px;
  padding: 0;
  border-color: var(--ui-border);
  background: var(--ui-surface);
}

@media (max-width: 760px) {
  .quickgen-workspace .quickgen-header {
    min-height: 56px;
    padding: 6px 12px;
  }

  .quickgen-workspace .header-logo-mark {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
  }

  .quickgen-workspace .header-logo small,
  .quickgen-workspace .quickgen-header nav a:not(.active) {
    display: none;
  }

  .quickgen-workspace .quickgen-header nav {
    gap: 0;
  }

  .quickgen-workspace .quickgen-header nav a.active {
    min-height: 36px;
    padding: 0 10px;
  }

  .quickgen-workspace .chat-container {
    max-width: 100%;
    border-inline: 0;
  }

  .quickgen-workspace .chat-messages {
    gap: 10px;
    padding: 12px 12px 16px !important;
    scroll-padding-bottom: 16px !important;
  }

  .quickgen-workspace .quickgen-showcase {
    padding: 12px;
  }

  .quickgen-workspace .quickgen-orbit {
    height: 138px;
  }

  .quickgen-workspace .quickgen-showcase-actions.combo-duo-debug-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .quickgen-workspace .quickgen-case-btn {
    min-height: 44px;
    padding: 0 10px;
    font-size: 12px;
  }

  .quickgen-workspace .msg {
    max-width: 90%;
  }

  .quickgen-workspace .chat-input-area {
    padding: 8px 10px calc(8px + env(safe-area-inset-bottom, 0px)) !important;
  }

  .quickgen-workspace .action-btn {
    min-height: 44px;
  }

  .quickgen-workspace.keyboard-open .quickgen-header,
  .quickgen-workspace.keyboard-open .action-bar:empty,
  .quickgen-workspace.keyboard-open .quickgen-showcase:not(.is-template-locked) {
    display: none !important;
  }

  .quickgen-workspace .trio-compact-wrap {
    width: 100%;
  }

  .quickgen-workspace .tcr-head {
    padding: 10px 12px;
  }

  .quickgen-workspace .tcr-head-divider {
    display: none;
  }

  .quickgen-workspace .tcr-head-stats {
    margin-left: auto;
  }

  .quickgen-workspace .tcr-schemes {
    padding: 8px;
  }
}

@media (max-width: 760px) {
  body.ui-system :where(button, .btn, [role="button"]) {
    min-height: 44px;
  }

  body.ui-system :where(input, textarea, select) {
    font-size: 16px !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.ui-system *,
  body.ui-system *::before,
  body.ui-system *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}