/* ─── Design System: Minimalist Modern (Admin Adaptation) ─── */

:root {
  --bg: #FAFAFA;
  --fg: #0F172A;
  --muted: #F1F5F9;
  --muted-fg: #64748B;
  --accent: #0052FF;
  --accent-secondary: #4D7CFF;
  --accent-fg: #FFFFFF;
  --border: #E2E8F0;
  --card: #FFFFFF;
  --ring: #0052FF;
  --sidebar-bg: #0F172A;
  --sidebar-active: rgba(0, 82, 255, 0.15);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.08);
  --shadow-accent: 0 4px 14px rgba(0,82,255,0.25);
  --radius: 12px;
  --radius-lg: 16px;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Consolas", "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body,
html,
input, button, select, textarea,
.el-input__inner,
.el-button,
.el-menu,
.el-menu-item,
.el-sub-menu__title,
.el-table,
.el-table th,
.el-table td,
.el-form-item__label,
.el-dialog__title,
.el-message-box,
.el-tag,
.el-breadcrumb,
.el-pagination,
.el-dropdown-menu__item,
[class^="el-"],
[class*=" el-"] {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif !important;
}

body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Layout ─── */

.app-layout {
  height: 100vh;
  overflow: hidden;
}

.app-sidebar {
  background: var(--sidebar-bg);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  border-right: none;
  display: flex;
  flex-direction: column;
}

.sidebar-logo {
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 12px;
  cursor: pointer;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
  transition: padding 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.sidebar-logo.is-collapsed {
  padding: 0;
  justify-content: center;
  gap: 0;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  border-radius: 10px;
  color: white;
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--font-display);
  color: #fff;
  font-size: 17px;
  white-space: nowrap;
  letter-spacing: -0.01em;
}

.app-sidebar .el-scrollbar { flex: 1; }

.app-sidebar .el-menu {
  border-right: none !important;
  padding: 8px;
}

.app-sidebar .el-menu-item,
.app-sidebar .el-sub-menu__title {
  border-radius: 10px !important;
  margin: 2px 0;
  height: 44px !important;
  line-height: 44px !important;
  transition: all 0.2s;
}

.app-sidebar .el-menu-item:hover,
.app-sidebar .el-sub-menu__title:hover {
  background: rgba(255,255,255,0.06) !important;
}

.app-sidebar .el-menu-item.is-active {
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary)) !important;
  color: #fff !important;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0,82,255,0.3);
}

.app-sidebar .el-menu--collapse .el-menu-item,
.app-sidebar .el-menu--collapse .el-sub-menu__title {
  padding: 0 !important;
  text-align: center;
}

.app-main-container {
  overflow: hidden;
  background: var(--bg);
}

.app-header {
  height: 64px !important;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px !important;
  box-shadow: var(--shadow-sm);
  z-index: 10;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.collapse-btn {
  font-size: 20px;
  cursor: pointer;
  color: var(--muted-fg);
  transition: color 0.2s;
  padding: 4px;
}
.collapse-btn:hover { color: var(--accent); }

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-icon {
  font-size: 20px;
  cursor: pointer;
  color: var(--muted-fg);
  transition: color 0.2s;
}
.header-icon:hover { color: var(--accent); }

.user-info {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--fg);
}
.user-name {
  font-size: 14px;
  font-weight: 500;
}

.app-content {
  padding: 24px;
  overflow-y: auto;
  height: calc(100vh - 64px);
  background: var(--bg);
}

/* ─── Login Page ─── */

.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.login-wrapper::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,82,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.login-wrapper::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -15%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(77,124,255,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.login-card {
  width: 420px;
  padding: 48px 40px;
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.login-logo {
  text-align: center;
  margin-bottom: 36px;
}

.login-logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  border-radius: 18px;
  color: white;
}

.login-logo h1 {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--fg);
  margin: 0;
  letter-spacing: -0.02em;
}

.login-logo p {
  color: var(--muted-fg);
  font-size: 14px;
  margin-top: 8px;
}

.login-card .el-form-item { margin-bottom: 24px; }

.login-card .el-input__wrapper {
  border-radius: 10px !important;
  padding: 4px 12px;
  box-shadow: 0 0 0 1px var(--border) !important;
  transition: all 0.2s;
}

.login-card .el-input__wrapper:hover {
  box-shadow: 0 0 0 1px var(--accent) !important;
}

.login-card .el-input__wrapper.is-focus {
  box-shadow: 0 0 0 2px var(--accent) !important;
}

.captcha-row {
  display: flex;
  gap: 12px;
  width: 100%;
  align-items: stretch;
}
.captcha-input { flex: 1; }
.captcha-img-wrapper {
  flex-shrink: 0;
  width: 130px;
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: border-color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
}
.captcha-img-wrapper:hover { border-color: var(--accent); }
.captcha-img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}
.captcha-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted-fg);
  font-size: 12px;
}

.login-btn {
  width: 100%;
  height: 48px !important;
  border-radius: 10px !important;
  font-size: 16px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary)) !important;
  border: none !important;
  box-shadow: var(--shadow-accent);
  transition: all 0.2s;
}

.login-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0,82,255,0.35);
  filter: brightness(1.05);
}

.login-btn:active {
  transform: translateY(0);
}

/* ─── Page Components ─── */

.page-header {
  margin-bottom: 24px;
}

.page-title {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--fg);
  letter-spacing: -0.01em;
}

.page-subtitle {
  color: var(--muted-fg);
  font-size: 14px;
  margin-top: 4px;
}

/* ─── Stats Cards ─── */

.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px 24px;
  border: 1px solid var(--border);
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 80px; height: 80px;
  border-radius: 50%;
  transform: translate(30%, -30%);
  opacity: 0.06;
}

.stat-card--blue::after { background: var(--accent); }
.stat-card--green::after { background: #10B981; }
.stat-card--orange::after { background: #F59E0B; }
.stat-card--pink::after { background: #EC4899; }
.stat-card--purple::after { background: #8B5CF6; }

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.stat-card .stat-label {
  font-size: 13px;
  color: var(--muted-fg);
  font-weight: 500;
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.stat-card .stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat-card .stat-value .stat-unit {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted-fg);
  margin-left: 4px;
}

/* ─── Content Card ─── */

.content-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
}

.card-toolbar {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
}

.card-toolbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.card-toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body { padding: 0; }

/* ─── Table Overrides ─── */

.content-card .el-table {
  --el-table-header-bg-color: var(--muted);
  --el-table-border-color: var(--border);
  font-size: 13px;
}

.content-card .el-table th.el-table__cell {
  font-weight: 600;
  color: var(--fg);
  font-size: 13px;
  letter-spacing: 0.02em;
  padding: 14px 0;
}

.content-card .el-table td.el-table__cell {
  padding: 12px 0;
}

.content-card .el-table .el-table__row:hover > td {
  background-color: rgba(0, 82, 255, 0.02) !important;
}

.card-pagination {
  padding: 16px 24px;
  display: flex;
  justify-content: flex-end;
  border-top: 1px solid var(--border);
}

/* ─── Element Plus Global Overrides ─── */

.el-button--primary {
  --el-button-bg-color: var(--accent);
  --el-button-border-color: var(--accent);
  --el-button-hover-bg-color: var(--accent-secondary);
  --el-button-hover-border-color: var(--accent-secondary);
  border-radius: 8px;
}

.el-button { border-radius: 8px; }

.el-input__wrapper {
  border-radius: 8px !important;
}

.el-select .el-input__wrapper {
  border-radius: 8px !important;
}

.el-dialog {
  border-radius: var(--radius) !important;
  overflow: hidden;
}

.el-dialog__header {
  padding: 20px 24px !important;
  margin-right: 0 !important;
  border-bottom: 1px solid var(--border);
}

.el-dialog__title {
  font-weight: 600;
  font-size: 16px;
}

.el-dialog__body {
  padding: 24px !important;
}

.el-dialog__footer {
  padding: 16px 24px !important;
  border-top: 1px solid var(--border);
}

.el-tag {
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
}

.el-card {
  border-radius: var(--radius) !important;
  border-color: var(--border) !important;
}

.el-message-box {
  border-radius: var(--radius) !important;
}

/* ─── Status Tags ─── */

.status-tag--success {
  --el-tag-bg-color: #ECFDF5;
  --el-tag-text-color: #059669;
  --el-tag-border-color: #A7F3D0;
}

.status-tag--warning {
  --el-tag-bg-color: #FFFBEB;
  --el-tag-text-color: #D97706;
  --el-tag-border-color: #FDE68A;
}

.status-tag--danger {
  --el-tag-bg-color: #FEF2F2;
  --el-tag-text-color: #DC2626;
  --el-tag-border-color: #FECACA;
}

.status-tag--info {
  --el-tag-bg-color: #F0F9FF;
  --el-tag-text-color: #0284C7;
  --el-tag-border-color: #BAE6FD;
}

/* ─── Dashboard ─── */

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.dash-stat {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 20px;
  transition: all 0.25s;
}

.dash-stat:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.dash-stat .stat-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.dash-stat .stat-icon--blue {
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  color: #fff;
}

.dash-stat .stat-icon--green {
  background: linear-gradient(135deg, #10B981, #34D399);
  color: #fff;
}

.dash-stat .stat-icon--orange {
  background: linear-gradient(135deg, #F59E0B, #FBBF24);
  color: #fff;
}

.dash-stat .stat-icon--purple {
  background: linear-gradient(135deg, #8B5CF6, #A78BFA);
  color: #fff;
}

.dash-stat .stat-body { flex: 1; }
.dash-stat .stat-body .label {
  font-size: 13px;
  color: var(--muted-fg);
  font-weight: 500;
  margin-bottom: 6px;
}
.dash-stat .stat-body .value {
  font-size: 26px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.02em;
}

/* ─── Notification List ─── */

.notice-panel {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 24px;
}

.notice-panel .panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.notice-panel .panel-head h3 {
  font-size: 16px;
  font-weight: 600;
}

.notice-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.notice-item:last-child { border-bottom: none; }

.notice-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 6px;
  flex-shrink: 0;
}

.notice-dot--read { background: var(--border); }

.notice-body .notice-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--fg);
  margin-bottom: 4px;
}

.notice-body .notice-time {
  font-size: 12px;
  color: var(--muted-fg);
}

/* ─── Person Page ─── */

.person-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 32px;
  max-width: 600px;
}

.person-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.avatar-upload-area {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.avatar-preview {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid var(--border);
  background: var(--muted);
  flex-shrink: 0;
  transition: border-color 0.2s;
}

.avatar-preview:hover {
  border-color: var(--accent);
}

.avatar-preview .avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.avatar-preview .avatar-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 28px;
  font-weight: 600;
  color: var(--accent);
  background: linear-gradient(135deg, #EBF0FF 0%, #D6E4FF 100%);
}

.avatar-preview .avatar-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.45);
  opacity: 0;
  transition: opacity 0.2s;
  border-radius: 50%;
}

.avatar-preview:hover .avatar-overlay,
.avatar-preview .avatar-overlay.uploading {
  opacity: 1;
}

.avatar-overlay-text {
  color: #fff;
  font-size: 12px;
  font-weight: 500;
}

.avatar-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 4px;
}

.avatar-tip {
  width: 100%;
  font-size: 12px;
  color: var(--muted-fg);
  margin-top: 4px;
}

/* ─── Send Message Page ─── */

.send-msg-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 32px;
  max-width: 700px;
}

/* ─── Config Page ─── */

.config-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 32px;
  max-width: 700px;
}

.config-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

/* ─── Page Transitions ─── */

@keyframes page-slide-in {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes page-scale-in {
  from { opacity: 0; transform: scale(0.96); }
  to   { opacity: 1; transform: scale(1); }
}

.app-content.page-enter {
  animation: page-slide-in 320ms cubic-bezier(0.22, 1, 0.36, 1) both;
}
@media (max-width: 768px) {
  .app-content.page-enter {
    animation: page-scale-in 320ms cubic-bezier(0.22, 1, 0.36, 1) both;
  }
}

/* ─── Loading ─── */

.page-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60vh;
  color: var(--accent);
}

/* ─── Utilities ─── */

.text-muted { color: var(--muted-fg); }
.text-accent { color: var(--accent); }
.text-success { color: #10B981; }
.text-danger { color: #EF4444; }
.text-warning { color: #F59E0B; }
.font-mono { font-size: 12px; }
.font-display { }
.fw-600 { font-weight: 600; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

/* ─── Collapsed sidebar icon alignment ─── */
.app-sidebar .el-menu--collapse .el-menu-item,
.app-sidebar .el-menu--collapse .el-sub-menu > .el-sub-menu__title {
  padding: 0 !important;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
}
.app-sidebar .el-menu--collapse .el-menu-item .el-icon,
.app-sidebar .el-menu--collapse .el-sub-menu__title .el-icon:first-child {
  margin: 0 !important;
}
.app-sidebar .el-menu--collapse .el-sub-menu__icon-arrow {
  display: none !important;
}
.app-sidebar .el-menu--collapse .el-tooltip__trigger {
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  width: 100% !important;
}

/* ─── Collapsed sidebar popup fix ─── */
.el-menu--vertical.el-menu--popup-container .el-menu--popup {
  background-color: #fff;
}
.el-menu--vertical.el-menu--popup-container .el-menu-item,
.el-menu--vertical.el-menu--popup-container .el-sub-menu__title {
  color: #303133 !important;
}
.el-menu--vertical.el-menu--popup-container .el-menu-item:hover,
.el-menu--vertical.el-menu--popup-container .el-menu-item.is-active {
  color: var(--accent, #4361ee) !important;
  background-color: #f0f5ff;
}