/* ========== Reset & Base ========== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box
}

:root {
  --bg: #fafafa;
  --card-bg: #fff;
  --text: #1a1a1a;
  --text-secondary: #6b7280;
  --border: #e5e7eb;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
  --transition: 0.2s ease;
  color-scheme: light
}

body {
  font-family: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, 'DejaVu Sans Mono', monospace;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  user-select: none
}

.mod-card-desc,
.detail-header p,
.description,
.detail-card p,
input,
textarea,
select,
option,
.chat-msg-text,
.chat-msg.user .chat-msg-text {
  user-select: text
}

/* Top Bar */
.top-bar {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  height: 46px;
  flex-shrink: 0;
  z-index: 100;
  box-shadow: var(--shadow)
}

.top-bar h1 {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap
}

.top-bar-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto
}

.sidebar-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 1rem;
  color: var(--text-secondary);
  transition: var(--transition);
  flex-shrink: 0
}

.sidebar-toggle:hover {
  border-color: var(--accent);
  color: var(--accent)
}

/* Main Area */
.main-area {
  display: flex;
  flex: 1;
  min-height: 0
}

/* Sidebar */
.sidebar {
  width: 200px;
  flex-shrink: 0;
  background: var(--card-bg);
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  transition: width .25s ease, padding .25s ease, transform .25s ease;
  z-index: 50;
}

.sidebar.collapsed {
  width: 0;
  padding: 16px 0;
  overflow: hidden;
  border-right: none
}

/* Sidebar backdrop for overlay mode */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 45;
}

.sidebar-working {
  width: 100%;
  max-width: 176px;
  height: auto;
  image-rendering: crisp-edges;
  align-self: center
}

.sidebar-credit {
  margin-top: auto;
  padding-top: 10px;
  font-size: .65rem;
  color: var(--text-secondary);
  text-align: center;
  border-top: 1px solid var(--border)
}

/* Content Area */
.content-area {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Lang / Admin Dropdowns */
.lang-dropdown {
  position: relative;
  display: inline-block
}

.lang-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card-bg);
  cursor: pointer;
  font-size: .78rem;
  transition: border-color var(--transition)
}

.lang-dropdown-btn:hover {
  border-color: var(--accent)
}

.lang-icon {
  width: 16px;
  height: 16px;
  object-fit: contain
}

.lang-arrow {
  font-size: .6rem;
  color: var(--text-secondary)
}

.lang-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  min-width: 120px;
  z-index: 200;
  padding: 4px 0
}

.lang-dropdown-menu.open {
  display: block
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  font-size: .78rem;
  cursor: pointer;
  transition: background var(--transition)
}

.lang-option:hover {
  background: #f3f4f6
}

.lang-check {
  width: 14px;
  text-align: center;
  font-size: .7rem;
  color: var(--accent)
}

/* Admin */
.admin-dropdown {
  position: relative;
  display: inline-block
}

.admin-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card-bg);
  cursor: pointer;
  font-size: .78rem;
  transition: border-color var(--transition)
}

.admin-dropdown-btn:hover {
  border-color: var(--accent)
}

.admin-dropdown-btn .lang-arrow {
  font-size: .6rem;
  color: var(--text-secondary)
}

.admin-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  min-width: 160px;
  z-index: 200;
  padding: 4px 0
}

.admin-dropdown-menu.open {
  display: block
}

.admin-option {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: .75rem;
  cursor: pointer;
  transition: background var(--transition);
  white-space: nowrap
}

.admin-option:hover {
  background: #f3f4f6
}

.admin-option.loading {
  opacity: .5;
  pointer-events: none
}

.admin-divider {
  height: 1px;
  background: var(--border);
  margin: 2px 0
}

/* Login */
.login-btn {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .78rem;
  font-weight: 500;
  cursor: pointer;
  background: var(--card-bg);
  color: var(--text);
  transition: border-color var(--transition);
  display: flex;
  align-items: center;
  gap: 4px
}

.login-btn:hover {
  border-color: var(--accent)
}

.login-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(4px);
  justify-content: center;
  align-items: center
}

.login-overlay.show {
  display: flex
}

.login-card {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 28px;
  max-width: 340px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  position: relative;
  animation: fadeIn .2s ease
}

.login-card h3 {
  text-align: center;
  margin-bottom: 16px;
  font-size: 1.1rem
}

.login-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  line-height: 1
}

.login-close:hover {
  color: var(--text)
}

.login-input {
  width: 100%;
  padding: 10px 14px;
  margin-bottom: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .9rem;
  outline: none;
  box-sizing: border-box
}

.login-input:focus {
  border-color: var(--accent)
}

.login-error {
  color: #ef4444;
  font-size: .8rem;
  margin-bottom: 8px;
  text-align: center;
  min-height: 20px
}

.login-submit {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition)
}

.login-submit:hover {
  background: var(--accent-hover)
}

.account-card {
  background: var(--card-bg);
  border-radius: 8px;
  padding: 24px;
  width: min(560px, calc(100vw - 32px));
  max-height: min(760px, calc(100vh - 32px));
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  position: relative
}

.account-heading {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 16px
}

.account-heading h3,
.account-section h4 {
  margin: 0
}

.account-heading span,
.account-section-heading span {
  color: var(--text-secondary);
  font-size: .75rem
}

.account-section {
  padding: 16px 0;
  border-top: 1px solid var(--border)
}

.account-section h4 {
  font-size: .9rem;
  margin-bottom: 10px
}

.account-section-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline
}

.account-create-row {
  display: grid;
  grid-template-columns: minmax(100px, .8fr) minmax(160px, 1.4fr) auto;
  gap: 8px;
  align-items: start
}

.account-create-row .login-input {
  margin-bottom: 0
}

.account-action-btn {
  min-height: 39px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--text);
  cursor: pointer
}

.account-action-btn.danger {
  color: #dc2626;
  border-color: #fca5a5;
}

.account-action-btn:hover {
  border-color: var(--accent)
}

.account-action-btn.danger {
  color: #dc2626
}

.account-message {
  min-height: 20px;
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: .78rem
}

.account-message.error {
  color: #dc2626
}

.account-user-list {
  border-top: 1px solid var(--border)
}

.account-user-row {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  font-size: .84rem
}

.account-user-row.current .account-user-name {
  font-weight: 600
}

.account-user-meta {
  color: var(--text-secondary);
  font-size: .72rem
}

@media (max-width: 620px) {
  .account-create-row {
    grid-template-columns: 1fr
  }

  .account-action-btn {
    width: 100%
  }
}

/* Spinner — loading-indicator Web Component */
#spinner {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 80px 0;
}

.gh-link {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .78rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: var(--transition)
}

.gh-link:hover {
  border-color: var(--accent);
  color: var(--accent)
}

/* Stat cards */
.stats-bar {
  display: none
}

.sidebar .stat-card {
  text-align: center;
  cursor: pointer;
  padding: 8px 10px;
  border-radius: var(--radius);
  transition: background var(--transition), box-shadow var(--transition)
}

.sidebar .stat-card:hover {
  background: #f3f4f6
}

.sidebar .stat-card.active {
  background: #eff6ff;
  box-shadow: 0 0 0 2px var(--accent)
}

.sidebar .stat-card .stat-row {
  margin: 2px 0;
  display: flex;
  align-items: baseline;
  justify-content: flex-start;
  gap: 4px;
  padding-left: 12px
}

.stat-num {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
  width: 3.2em;
  text-align: right;
  flex-shrink: 0
}

.stat-label {
  font-size: .68rem;
  color: var(--text-secondary);
  text-align: left
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(16px)
  }

  to {
    opacity: 1;
    transform: translateY(0)
  }
}

/* ========== 工具组（折叠卡片） ========== */
.tool-group {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin: 4px 0;
  background: var(--card-bg);
  cursor: pointer;
  transition: border-color .15s;
  font-size: 10px;
  overflow: hidden;
  max-width: 100%;
}

.tool-group:hover {
  border-color: var(--accent-hover);
}

.tool-group .tool-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  font-size: 12px;
  user-select: none;
  min-width: 0;
}

.tool-group .tool-icon {
  font-size: 13px;
}

.tool-group .tool-name {
  font-weight: 600;
  color: #555555;
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex-shrink: 1;
  min-width: 0;
}

.tool-group .tool-brief {
  color: var(--text-secondary);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  text-align: right;
}

.tool-group .tool-status {
  font-size: 12px;
  min-width: 20px;
  text-align: center;
}

.tool-group .tool-body {
  padding: 0 10px 8px;
  font-size: 10px;
}

.tool-group .tool-body pre {
  margin: 4px 0;
  padding: 8px;
  background: #f3f4f6;
  border-radius: 4px;
  font-size: 10px;
  max-height: 200px;
  overflow-x: hidden;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.tool-group .tool-approval {
  margin: 4px 0;
  font-size: 12px;
}

.tool-group .approval-done {
  color: #059669;
  font-weight: 600;
  font-size: 12px;
}

.tool-group .approval-detail-text {
  color: #d97706;
  font-size: 12px;
  margin-bottom: 4px;
}

.tool-group .approval-actions {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}

.tool-group .approval-btn {
  padding: 2px 10px;
  border-radius: 4px;
  border: 1px solid #d1d5db;
  background: var(--card-bg);
  font-size: 12px;
  cursor: pointer;
}

.tool-group .approval-btn.approve:hover {
  background: #059669;
  color: #fff;
  border-color: #059669;
}

.tool-group .approval-btn.deny:hover {
  background: #dc2626;
  color: #fff;
  border-color: #dc2626;
}

.tool-group .approval-detail-pre {
  border-left: 2px solid #f59e0b;
  padding-left: 8px;
  color: #92400e;
}