/**
 * Copyright (c) 2026 软件研发部
 * 内部使用，未经授权禁止外传。
 * @description 教学管理信息系统全局视觉主题
 * @author 软件研发部
 * @since 2026-08-24
 */

:root {
  --edu-color-primary: #0b6b55;
  --edu-color-primary-hover: #085442;
  --edu-color-primary-active: #063f34;
  --edu-color-primary-soft: #e8f3ef;
  --edu-color-primary-faint: #f3f8f6;
  --edu-color-accent: #c69b3c;
  --edu-color-text: #172b25;
  --edu-color-text-secondary: #52645f;
  --edu-color-text-muted: #7a8a85;
  --edu-color-border: #dce6e2;
  --edu-color-border-strong: #c8d8d2;
  --edu-color-canvas: #f4f7f6;
  --edu-color-surface: #ffffff;
  --edu-color-success: #238b68;
  --edu-color-warning: #b77a17;
  --edu-color-danger: #c94b52;
  --edu-shadow-sm: 0 1px 2px rgba(19, 45, 37, 0.05);
  --edu-shadow-md: 0 6px 18px rgba(19, 45, 37, 0.08);
  --edu-shadow-dialog: 0 18px 48px rgba(14, 36, 30, 0.18);
  --edu-radius-sm: 5px;
  --edu-radius-md: 8px;
  --edu-radius-lg: 12px;
  --edu-transition-fast: 160ms ease;
  --edu-transition-base: 220ms ease;
}

body {
  color: var(--edu-color-text);
  background: var(--edu-color-canvas);
}

button,
input,
textarea,
select {
  font-family: inherit;
}

button,
[role="button"],
.el-button,
.el-dropdown,
.el-menu-item,
.el-submenu__title {
  -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible,
[role="button"]:focus-visible,
.el-button:focus-visible,
.el-input__inner:focus-visible,
.el-textarea__inner:focus-visible {
  outline: 2px solid var(--edu-color-primary);
  outline-offset: 2px;
}

#app .main-container,
#app .app-main {
  background: var(--edu-color-canvas);
}

#app .app-container {
  padding: 20px 22px;
}

/* 按钮采用清晰的主次层级，避免同屏操作全部呈现为高强调。 */
#app .el-button {
  min-height: 36px;
  padding: 9px 16px;
  border-radius: var(--edu-radius-sm);
  border-color: var(--edu-color-border-strong);
  color: #334740;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.1px;
  box-shadow: var(--edu-shadow-sm);
  transition:
    color var(--edu-transition-fast),
    background-color var(--edu-transition-fast),
    border-color var(--edu-transition-fast),
    box-shadow var(--edu-transition-fast);
}

#app .el-button:hover,
#app .el-button:focus {
  color: var(--edu-color-primary);
  background: var(--edu-color-primary-faint);
  border-color: #9cbdb1;
  box-shadow: 0 2px 6px rgba(11, 107, 85, 0.10);
}

#app .el-button:active {
  color: var(--edu-color-primary-active);
  background: #dfede8;
  border-color: var(--edu-color-primary);
  box-shadow: inset 0 1px 2px rgba(8, 76, 63, 0.12);
}

#app .el-button--primary {
  color: #ffffff;
  background: var(--edu-color-primary);
  border-color: var(--edu-color-primary);
  box-shadow: 0 2px 5px rgba(11, 107, 85, 0.18);
}

#app .el-button--primary:hover,
#app .el-button--primary:focus {
  color: #ffffff;
  background: var(--edu-color-primary-hover);
  border-color: var(--edu-color-primary-hover);
  box-shadow: 0 4px 10px rgba(11, 107, 85, 0.22);
}

#app .el-button--primary:active {
  color: #ffffff;
  background: var(--edu-color-primary-active);
  border-color: var(--edu-color-primary-active);
}

#app .el-button--primary.is-plain {
  color: var(--edu-color-primary);
  background: var(--edu-color-primary-faint);
  border-color: #9cbdb1;
  box-shadow: none;
}

#app .el-button--primary.is-plain:hover,
#app .el-button--primary.is-plain:focus {
  color: #ffffff;
  background: var(--edu-color-primary);
  border-color: var(--edu-color-primary);
}

#app .el-button--success.is-plain,
#app .el-button--warning.is-plain,
#app .el-button--danger.is-plain,
#app .el-button--info.is-plain {
  box-shadow: none;
}

#app .el-button--success.is-plain {
  color: var(--edu-color-success);
  background: #eef8f4;
  border-color: #afd5c7;
}

#app .el-button--warning.is-plain {
  color: var(--edu-color-warning);
  background: #fbf6ea;
  border-color: #dfc58f;
}

#app .el-button--danger.is-plain {
  color: var(--edu-color-danger);
  background: #fbf0f1;
  border-color: #e4b3b7;
}

#app .el-button--info.is-plain {
  color: #5f706b;
  background: #f3f5f4;
  border-color: #c8d1ce;
}

#app .el-button--success.is-plain:hover,
#app .el-button--warning.is-plain:hover,
#app .el-button--danger.is-plain:hover,
#app .el-button--info.is-plain:hover {
  color: #ffffff;
}

#app .el-button--success {
  background: var(--edu-color-success);
  border-color: var(--edu-color-success);
}

#app .el-button--warning {
  background: var(--edu-color-warning);
  border-color: var(--edu-color-warning);
}

#app .el-button--danger {
  background: var(--edu-color-danger);
  border-color: var(--edu-color-danger);
}

#app .el-button--info {
  background: #5f706b;
  border-color: #5f706b;
}

#app .el-button--success,
#app .el-button--warning,
#app .el-button--danger,
#app .el-button--info {
  color: #ffffff;
}

#app .el-button--success.is-plain:hover {
  background: var(--edu-color-success);
  border-color: var(--edu-color-success);
}

#app .el-button--warning.is-plain:hover {
  background: var(--edu-color-warning);
  border-color: var(--edu-color-warning);
}

#app .el-button--danger.is-plain:hover {
  background: var(--edu-color-danger);
  border-color: var(--edu-color-danger);
}

#app .el-button--info.is-plain:hover {
  background: #5f706b;
  border-color: #5f706b;
}

#app .el-button--mini {
  min-height: 30px;
  padding: 6px 11px;
  font-size: 13px;
}

#app .el-button--small {
  min-height: 32px;
  padding: 7px 13px;
}

#app .el-button--text {
  min-height: 30px;
  padding: 5px 7px;
  color: var(--edu-color-primary);
  border-color: transparent;
  background: transparent;
  box-shadow: none;
}

#app .el-button--text:hover,
#app .el-button--text:focus {
  color: var(--edu-color-primary-hover);
  background: var(--edu-color-primary-soft);
  border-color: transparent;
}

#app .el-button.is-circle {
  min-width: 36px;
  padding: 0;
}

#app .el-button.is-disabled,
#app .el-button.is-disabled:hover,
#app .el-button.is-disabled:focus {
  color: #9aa7a3;
  background: #f2f4f3;
  border-color: #e1e7e4;
  box-shadow: none;
}

/* 表单控件保持紧凑，同时用统一焦点状态提升批量录入效率。 */
#app .el-input__inner,
#app .el-textarea__inner,
#app .el-range-editor.el-input__inner {
  border-color: var(--edu-color-border-strong);
  border-radius: var(--edu-radius-sm);
  color: var(--edu-color-text);
  background: var(--edu-color-surface);
  transition:
    border-color var(--edu-transition-fast),
    box-shadow var(--edu-transition-fast);
}

#app .el-input__inner:hover,
#app .el-textarea__inner:hover,
#app .el-range-editor.el-input__inner:hover {
  border-color: #91b3a7;
}

#app .el-input.is-active .el-input__inner,
#app .el-input__inner:focus,
#app .el-textarea__inner:focus,
#app .el-range-editor.is-active {
  border-color: var(--edu-color-primary);
  box-shadow: 0 0 0 3px rgba(11, 107, 85, 0.10);
}

#app .el-form-item__label {
  color: #344a42;
  font-weight: 500;
}

#app .el-checkbox__input.is-checked .el-checkbox__inner,
#app .el-checkbox__input.is-indeterminate .el-checkbox__inner,
#app .el-radio__input.is-checked .el-radio__inner {
  background-color: var(--edu-color-primary);
  border-color: var(--edu-color-primary);
}

#app .el-checkbox__input.is-checked + .el-checkbox__label,
#app .el-radio__input.is-checked + .el-radio__label {
  color: var(--edu-color-primary-hover);
}

/* 数据表格用浅层表头和克制分隔线，强调扫描效率。 */
#app .el-table {
  color: #344740;
  border-radius: var(--edu-radius-md);
  border: 1px solid var(--edu-color-border);
  overflow: hidden;
}

#app .el-table::before,
#app .el-table--border::after {
  background-color: var(--edu-color-border);
}

#app .el-table th.el-table__cell {
  color: #29443b;
  font-weight: 600;
  background: #edf4f1;
  border-bottom-color: #d7e4df;
}

#app .el-table td.el-table__cell {
  border-bottom-color: #e7eeeb;
}

/* 主列表与弹窗选择列表统一居中，避免未声明 align 的字段退回左对齐。 */
body .el-table th.el-table__cell,
body .el-table td.el-table__cell {
  text-align: center;
}

#app .el-table--enable-row-hover .el-table__body tr:hover > td.el-table__cell {
  background: #f2f8f5;
}

#app .el-table .current-row > td.el-table__cell {
  background: #e8f3ef;
}

/* 行级操作保持单行，避免按钮被列宽挤压后增加表格行高。 */
#app .el-table .table-action-column .cell {
  white-space: nowrap;
}

/* 卡片与弹窗采用一致的白色工作面，不使用装饰性大渐变。 */
#app .el-card {
  border: 1px solid var(--edu-color-border);
  border-radius: var(--edu-radius-lg);
  background: var(--edu-color-surface);
  box-shadow: var(--edu-shadow-sm);
}

#app .el-card__header {
  padding: 15px 18px;
  color: var(--edu-color-text);
  font-weight: 600;
  background: #fbfcfc;
  border-bottom-color: var(--edu-color-border);
}

#app .el-dialog {
  border-radius: var(--edu-radius-lg);
  box-shadow: var(--edu-shadow-dialog);
  overflow: hidden;
}

#app .el-dialog__header {
  padding: 18px 22px 16px;
  background: #f8faf9;
  border-bottom: 1px solid var(--edu-color-border);
}

#app .el-dialog__title {
  color: var(--edu-color-text);
  font-size: 17px;
  font-weight: 600;
}

#app .el-dialog__body {
  padding: 22px;
}

#app .el-dialog__footer {
  padding: 14px 22px 18px;
  background: #fbfcfc;
  border-top: 1px solid #edf1ef;
}

#app .el-pagination.is-background .el-pager li:not(.disabled).active {
  background: var(--edu-color-primary);
}

#app .el-pagination button:hover,
#app .el-pager li:hover {
  color: var(--edu-color-primary);
}

#app .el-tag {
  border-radius: 4px;
  font-weight: 500;
}

/* 教学管理列表页保持统一的信息层级，同时允许各业务页面保留原有结构。 */
#app .management-page {
  --management-section-gap: 16px;
  --management-section-padding: 18px;
}

#app .management-page .section-card {
  padding: var(--management-section-padding);
  margin-bottom: var(--management-section-gap);
  border: 1px solid var(--edu-color-border);
  border-radius: var(--edu-radius-lg);
  background: var(--edu-color-surface);
  box-shadow: var(--edu-shadow-sm);
}

#app .management-page .section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid #edf1ef;
}

#app .management-page .section-heading--compact {
  padding-bottom: 12px;
  margin-bottom: 14px;
}

#app .management-page .section-title {
  margin: 0;
  color: var(--edu-color-text);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
}

#app .management-page .section-description {
  margin: 4px 0 0;
  color: var(--edu-color-text-secondary);
  font-size: 12px;
  line-height: 1.5;
}

#app .management-page .export-bar,
#app .management-page .action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

#app .management-page .export-bar .el-button + .el-button,
#app .management-page .action-row .el-button + .el-button {
  margin-left: 0;
}

#app .management-page .table-heading {
  margin-bottom: 0;
}

/* 选修课操作较多，宽屏时并列展示操作与导出，降低按钮堆叠造成的视觉噪音。 */
#app .elective-page {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(360px, 1fr);
  gap: var(--management-section-gap);
}

#app .elective-page .section-card {
  margin-bottom: 0;
}

#app .elective-page .query-card,
#app .elective-page .upload-card,
#app .elective-page .table-card {
  grid-column: 1 / -1;
}

#app .elective-page .action-card {
  grid-column: 1;
  grid-row: 2;
}

#app .elective-page .export-card {
  grid-column: 2;
  grid-row: 2;
}

#app .management-page .query-card .q-control,
#app .management-page .search-card .q-control {
  max-width: 520px;
}

/* 首页沿用原有模块，不改变信息结构，仅降低大色块与渐变的视觉重量。 */
#app .home {
  background: var(--edu-color-canvas);
}

#app .home .module-card {
  border: 1px solid var(--edu-color-border);
  background: var(--edu-color-surface);
  box-shadow: var(--edu-shadow-sm);
}

#app .home .module-card:hover {
  border-color: #c9dcd5;
  box-shadow: var(--edu-shadow-md);
}

#app .home .module-card .el-card__header {
  color: var(--edu-color-text);
  background: #fbfcfc;
  border-bottom: 1px solid var(--edu-color-border);
}

#app .home .card-header {
  color: var(--edu-color-text);
}

#app .home .card-header .card-icon {
  color: var(--edu-color-primary);
}

#app .home .card-header .more-btn {
  color: var(--edu-color-primary);
}

#app .home .contact-item .contact-icon {
  background: var(--edu-color-primary-soft);
  color: var(--edu-color-primary);
  border-radius: var(--edu-radius-md);
  box-shadow: none;
}

/* 下拉浮层渲染在 body 下，因此使用系统级选择器统一其视觉。 */
.el-select-dropdown,
.el-dropdown-menu,
.el-picker-panel,
.el-popover {
  border-color: var(--edu-color-border);
  border-radius: var(--edu-radius-md);
  box-shadow: var(--edu-shadow-md);
}

.el-select-dropdown__item.hover,
.el-select-dropdown__item:hover,
.el-dropdown-menu__item:not(.is-disabled):hover,
.el-dropdown-menu__item:not(.is-disabled):focus {
  color: var(--edu-color-primary);
  background: var(--edu-color-primary-soft);
}

.el-select-dropdown__item.selected {
  color: var(--edu-color-primary);
  font-weight: 600;
}

@media (max-width: 768px) {
  #app .app-container {
    padding: 14px;
  }

  #app .el-button {
    min-height: 38px;
  }

  #app .el-dialog {
    width: calc(100% - 24px);
    margin-top: 4vh;
  }

  #app .management-page {
    --management-section-padding: 14px;
  }

  #app .management-page .section-heading,
  #app .management-page .upload-row {
    align-items: stretch;
    flex-direction: column;
  }

  #app .management-page .section-heading .el-button,
  #app .management-page .upload-right .el-button {
    width: 100%;
  }
}

@media (max-width: 1200px) {
  #app .elective-page {
    display: block;
  }

  #app .elective-page .section-card {
    margin-bottom: var(--management-section-gap);
  }
}

@media (prefers-reduced-motion: reduce) {
  #app *,
  #app *::before,
  #app *::after {
    scroll-behavior: auto;
    transition-duration: 0.01ms;
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
  }
}