/* DOC90 design-system refinement layer.
   Overrides are intentionally scoped to existing selectors so DOM IDs,
   event handlers, and API behavior remain unchanged. */

:root {
  --surface-raised: rgba(255, 255, 255, 0.9);
  --surface-solid: #ffffff;
  --surface-muted: #f5f7fb;
  --surface-interactive: #ffffff;
  --surface-glass: rgba(248, 250, 253, 0.74);
  --text-primary: #15202b;
  --text-secondary: #4d5c6e;
  --text-muted: #73839a;
  --accent: #1f6feb;
  --accent-strong: #1558c0;
  --accent-soft: rgba(31, 111, 235, 0.12);
  --danger: #dc2626;
  --danger-strong: #b91c1c;
  --warning: #d97706;
  --success: #16a34a;
  --border-subtle: rgba(198, 210, 224, 0.72);
  --border-strong: rgba(163, 180, 199, 0.9);
  --focus-ring: 0 0 0 3px rgba(31, 111, 235, 0.16);
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --space-3xs: 2px;
  --space-2xs: 5px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 18px;
  --space-lg: 26px;
  --space-xl: 38px;
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 4px 14px rgba(15, 23, 42, 0.07);
  --shadow-md: 0 12px 30px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 26px 64px rgba(15, 23, 42, 0.17);
  --transition-fast: 120ms cubic-bezier(0.2, 0, 0.2, 1);
  --transition-normal: 180ms cubic-bezier(0.2, 0, 0.2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  min-width: 320px;
}

body {
  position: relative;
  font-family: "Inter", "Segoe UI", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--text-primary);
  background:
    radial-gradient(1000px 620px at 78% -12%, rgba(31, 111, 235, 0.09), transparent 64%),
    radial-gradient(760px 520px at 8% 108%, rgba(14, 165, 233, 0.08), transparent 60%),
    linear-gradient(180deg, #f7f9fc 0%, #eef3f9 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.055) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 0%, rgba(0, 0, 0, 0.82), transparent 68%);
  -webkit-mask-image: radial-gradient(circle at 50% 0%, rgba(0, 0, 0, 0.82), transparent 68%);
}

.sidebar {
  background: linear-gradient(180deg, rgba(236, 243, 251, 0.96), rgba(225, 234, 246, 0.9));
  border-right: 1px solid rgba(186, 201, 219, 0.62);
  backdrop-filter: blur(14px);
}

.sidebar-toggle,
.sidebar-item {
  border-radius: var(--radius-md);
  transition: background var(--transition-normal), color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-fast);
}

.sidebar-item {
  border: 1px solid transparent;
  color: var(--text-secondary);
}

.sidebar-item:hover {
  color: var(--text-primary);
  background: var(--surface-raised);
  border-color: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-xs);
  transform: translateY(-1px);
}

.sidebar-item:active,
.sidebar-toggle:active {
  transform: translateY(1px) scale(0.99);
  box-shadow: none;
}

.main-content {
  padding: 0 clamp(12px, 2.2vw, 30px) clamp(18px, 3vw, 34px);
}

.content-section {
  padding: clamp(12px, 2vw, 26px) 0 0;
}

.top-bar {
  min-height: 76px;
  padding: var(--space-sm) 0;
  margin-bottom: clamp(10px, 2.4vw, 30px);
  border-bottom: 1px solid rgba(190, 207, 226, 0.62);
  gap: var(--space-sm);
}

.top-left {
  gap: clamp(8px, 1.2vw, 14px);
}

.logo {
  width: clamp(36px, 4.2vw, 46px);
  height: clamp(36px, 4.2vw, 46px);
  border-radius: var(--radius-md);
  box-shadow: 0 5px 16px rgba(31, 111, 235, 0.14);
}

.logo:hover {
  transform: translateY(-1px);
}

.top-bar h1 {
  font-size: clamp(24px, 3.1vw, 34px);
  letter-spacing: 0;
  color: var(--text-primary);
}

.welcome {
  margin-top: clamp(34px, 10vw, 92px);
  margin-bottom: clamp(18px, 3vw, 30px);
  font-size: clamp(26px, 5.2vw, 44px);
  line-height: 1.16;
  color: #17212d;
}

.main-input-container,
.DOC90-input-container,
#dropZone {
  max-width: min(940px, 100%);
}

.main-input-container {
  border-radius: var(--radius-xl);
  border-color: rgba(198, 210, 224, 0.78);
  background: var(--surface-solid);
  box-shadow: var(--shadow-sm);
}

.main-input-container:hover,
.main-input-container:focus-within {
  box-shadow: 0 16px 38px rgba(15, 23, 42, 0.11);
  border-color: rgba(146, 173, 204, 0.85);
}

.file-list {
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-sm) 0;
}

.fileBox {
  border-radius: var(--radius-md);
  border-color: var(--border-subtle);
  background: var(--surface-muted);
  box-shadow: var(--shadow-xs);
}

.fileBox:hover {
  border-color: var(--border-strong);
  background: #ffffff;
}

.input-area {
  padding: clamp(12px, 2vw, 18px) clamp(14px, 2.4vw, 22px);
}

.input-area textarea,
.fixed-input-area textarea {
  font-size: clamp(15px, 1.4vw, 17px);
  color: var(--text-primary);
}

.input-area textarea::placeholder,
.fixed-input-area textarea::placeholder {
  color: var(--text-muted);
}

.toolbar {
  padding: var(--space-xs) var(--space-sm) clamp(12px, 1.8vw, 18px);
  gap: var(--space-xs);
}

.link-btn,
.file-btn,
.model-select,
.template-call-btn,
.apply-filter-btn,
.reset-filter-btn,
.export-report-btn,
.clear-history-btn,
.confirm-btn,
.login-btn,
.btn,
button {
  font-family: inherit;
  border-radius: var(--radius-md);
  transition: background var(--transition-normal), color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-fast), filter var(--transition-normal);
}

.link-btn,
.file-btn {
  min-height: 42px;
  padding: 9px 15px;
  border-radius: 999px;
  border-color: rgba(198, 210, 224, 0.76);
  background: rgba(255, 255, 255, 0.78);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 650;
}

.link-btn:hover,
.file-btn:hover {
  transform: translateY(-1px);
  background: #ffffff;
  border-color: rgba(143, 169, 199, 0.9);
  box-shadow: 0 7px 18px rgba(15, 23, 42, 0.07);
}

.link-btn:active,
.file-btn:active,
.send-btn:active,
.model-select:active,
.template-call-btn:active,
.apply-filter-btn:active,
.reset-filter-btn:active,
.export-report-btn:active,
.clear-history-btn:active,
.login-btn:active,
.confirm-btn:active,
.btn:active {
  transform: translateY(1px) scale(0.985);
  box-shadow: none;
}

.send-btn {
  width: 38px;
  height: 38px;
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent), #3b82f6);
  box-shadow: 0 8px 18px rgba(31, 111, 235, 0.24);
}

.send-btn:hover {
  background: linear-gradient(135deg, var(--accent-strong), #2563eb);
  transform: translateY(-1px);
}

.send-btn:focus-visible,
.link-btn:focus-visible,
.file-btn:focus-visible,
.model-select:focus-visible,
.login-input:focus-visible,
.search-input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.model-dropdown {
  min-width: 150px;
}

.model-select {
  min-height: 40px;
  justify-content: center;
  border-radius: 999px;
  border-color: rgba(198, 210, 224, 0.78);
  background: var(--surface-raised);
  color: var(--text-primary);
}

.model-select:hover {
  transform: translateY(-1px);
  background: #ffffff;
  border-color: rgba(143, 169, 199, 0.9);
  box-shadow: var(--shadow-xs);
}

.model-menu {
  width: min(220px, calc(100vw - 40px));
  right: 0;
  padding: 6px;
  border: 1px solid rgba(198, 210, 224, 0.72);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(14px);
  animation: softFadeSlide var(--transition-fast) ease;
}

.model-menu-item {
  min-height: 40px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

.model-menu-item:hover {
  background: #f1f5fa;
  color: var(--text-primary);
}

.model-menu-item.active {
  color: var(--accent);
  background: var(--accent-soft);
}

.model-menu-item.active .check {
  color: var(--accent);
}

.avatar {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(198, 210, 224, 0.78);
  background: #ffffff;
  box-shadow: var(--shadow-xs);
}

.avatar:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.09);
}

.mask-layer,
.confirm-mask,
.login-mask {
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
}

.template-popup,
.login-box,
.confirm-box,
.user-card {
  border: 1px solid rgba(198, 210, 224, 0.72);
  box-shadow: var(--shadow-lg);
}

.template-popup {
  border-radius: var(--radius-xl);
}

.popup-head {
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.popup-head h3 {
  color: var(--text-primary);
  font-size: 19px;
}

.popup-close {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  background: rgba(15, 23, 42, 0.04);
  line-height: 1;
}

.popup-close:hover {
  color: var(--text-primary);
  background: rgba(15, 23, 42, 0.08);
}

.search-input,
.template-filter select,
.stats-filters select,
#historyTypeFilter,
#historyStatusFilter,
#historyTimeFilter,
#statsModeFilter,
#statsStatusFilter {
  min-height: 40px;
  border-radius: var(--radius-md);
  border-color: var(--border-subtle);
  background: #ffffff;
  color: var(--text-primary);
}

.search-input {
  margin-bottom: var(--space-sm);
}

.search-input:focus,
.template-filter select:focus,
#historyTypeFilter:focus,
#historyStatusFilter:focus,
#historyTimeFilter:focus,
#statsModeFilter:focus,
#statsStatusFilter:focus {
  border-color: rgba(31, 111, 235, 0.5);
  box-shadow: var(--focus-ring);
}

.template-drop-area,
.template-simple-used,
.result-output-block,
.stat-card,
.stats-section {
  border-radius: var(--radius-lg);
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-xs);
}

.template-call-btn {
  min-height: 42px;
  background: linear-gradient(135deg, var(--accent), #3b82f6);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(31, 111, 235, 0.2);
}

.template-call-btn:hover {
  background: linear-gradient(135deg, var(--accent-strong), #2563eb);
  box-shadow: 0 11px 26px rgba(31, 111, 235, 0.26);
}

.template-call-btn:disabled {
  background: #d9e0ea;
  color: #64748b;
  cursor: not-allowed;
  box-shadow: none;
}

.history-tpl-item {
  border-radius: var(--radius-md);
}

.export-report-btn,
.apply-filter-btn {
  background: linear-gradient(135deg, var(--accent), #3b82f6);
  border-color: transparent;
}

.export-report-btn:hover,
.apply-filter-btn:hover {
  filter: none;
  background: linear-gradient(135deg, var(--accent-strong), #2563eb);
}

.reset-filter-btn,
.clear-history-btn {
  background: #ffffff;
  border-color: var(--border-subtle);
  color: var(--text-secondary);
}

.reset-filter-btn:hover,
.clear-history-btn:hover {
  background: #f4f7fb;
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.clear-history-btn {
  color: #9a3412;
  border-color: rgba(249, 115, 22, 0.22);
}

.login-box,
.confirm-box {
  border-radius: var(--radius-xl);
}

.login-input {
  min-height: 46px;
  margin-bottom: 14px;
  border-radius: var(--radius-md);
}

.login-btn,
.confirm-btn.confirm {
  min-height: 46px;
  border-radius: var(--radius-md);
}

.login-btn:hover,
.confirm-btn.confirm:hover,
.export-report-btn:hover,
.apply-filter-btn:hover {
  transform: translateY(-1px);
}

.login-btn:disabled,
.confirm-btn:disabled,
.btn:disabled {
  opacity: 0.62;
  cursor: not-allowed;
  box-shadow: none;
  filter: none;
}

.question-dialog {
  border-radius: var(--radius-lg);
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-md);
}

.question-dialog button,
.question-dialog .cancel,
.question-dialog .submit {
  border-radius: var(--radius-md);
  min-height: 38px;
}

.question-dialog .submit {
  background: var(--accent);
}

.question-dialog .submit:hover {
  background: var(--accent-strong);
}

.question-dialog .cancel {
  background: #ffffff;
  border-color: var(--border-subtle);
  color: var(--text-secondary);
}

.fixed-input-area .input-container {
  border-radius: var(--radius-xl);
}

.user-message .message-content,
.bot-message .message-content {
  border-radius: var(--radius-lg);
}

.user-message .message-content {
  border-color: rgba(31, 111, 235, 0.14);
}

.bot-message .message-content {
  background: var(--surface-solid);
  border-color: var(--border-subtle);
}

.result-file-primary,
.result-file-card {
  gap: var(--space-sm);
}

.result-file-title {
  color: var(--text-primary);
}

.btn-result-icon,
.btn-result-download,
.btn-result-preview,
.btn-result-saveas {
  border-radius: var(--radius-sm);
}

.btn-result-icon:hover,
.btn-result-download:hover,
.btn-result-preview:hover,
.btn-result-saveas:hover {
  transform: translateY(-1px);
}

@media (max-width: 900px) {
  body {
    overflow: auto;
  }

  .main-content {
    height: 100%;
  }

  .sidebar {
    position: fixed;
    z-index: 500;
    inset-block: 0;
    left: 0;
    width: min(76px, 20vw);
    min-width: 64px;
  }

  .main-content {
    margin-left: min(76px, 20vw);
  }

  .top-bar {
    position: relative;
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .main-input-container {
    border-radius: var(--radius-lg);
  }
}

@media (max-width: 640px) {
  .main-content,
  .content-section {
    padding-inline: 0;
  }

  .top-bar {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-right {
    width: 100%;
    justify-content: space-between;
  }

  .model-dropdown {
    flex: 1 1 auto;
  }

  .model-select {
    width: 100%;
    justify-content: space-between;
  }

  .link-btn,
  .file-btn {
    width: 100%;
    min-width: 0;
    padding-inline: 10px;
    font-size: 13px;
  }

  .link-text,
  .file-text {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .toolbar-right {
    width: 100%;
    justify-content: flex-end;
  }

  .template-popup {
    height: min(94vh, 100%);
    max-height: 100%;
    border-radius: var(--radius-lg);
  }

  .template-list-section,
  .template-preview-section {
    padding: 16px;
  }

  .history-filter-actions,
  .result-file-actions,
  .confirm-actions {
    width: 100%;
    justify-content: stretch;
  }

  .confirm-btn,
  .export-report-btn,
  .clear-history-btn,
  .apply-filter-btn,
  .reset-filter-btn,
  .btn-result-saveas,
  .btn-result-download,
  .btn-result-preview {
    width: 100%;
    min-width: 0;
  }

  .result-file-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .btn-result-icon {
    width: 100%;
  }
}

@media (max-width: 420px) {
  .sidebar {
    width: 60px;
    min-width: 60px;
  }

  .main-content {
    margin-left: 60px;
  }

  .result-file-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }

  .btn-result-saveas,
  .btn-result-download,
  .btn-result-preview {
    width: 100%;
  }
}

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