/* 课程编排模块专有样式 */
:root {
    --bg-color: #0d0f14;
    --panel-bg: #16181f;
    --canvas-bg: #1e212b;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --accent-color: #4f46e5;
    --accent-hover: #4338ca;
    --border-color: #2b2f3a;
    --danger: #ef4444;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
}

.course-app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.course-header {
    height: 80px;
    padding: 0 40px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: rgba(13, 15, 20, 0.9);
    backdrop-filter: blur(12px);
    z-index: 100;
}

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

.back-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    text-decoration: none;
}

.back-btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.stepper {
    display: flex;
    gap: 40px;
}

.step {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding-bottom: 5px;
}

.step.active {
    color: var(--accent-color);
}

.step.active::after {
    content: '';
    position: absolute;
    bottom: -29px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-color);
}

.course-content {
    flex-grow: 1;
    overflow-y: auto;
    padding: 40px;
}

.config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.config-card {
    background-color: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    max-height: 500px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.icon-btn-add {
    background-color: var(--accent-color);
    color: white;
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
}

.icon-btn {
    background: rgba(255, 255, 255, 0.08);
    border: none;
    color: white;
    font-size: 32px; /* 更大更明显 */
    cursor: pointer;
    opacity: 0.85;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    width: 44px;
    height: 44px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    line-height: 1;
}

.icon-btn:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1) rotate(90deg);
}

.list-container {
    flex-grow: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.list-item {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px; /* 强制间距 */
    transition: all 0.2s ease;
}

.list-item:hover {
    border-color: var(--text-secondary);
    background-color: rgba(255, 255, 255, 0.05);
}

.item-name {
    font-weight: 500;
    font-size: 0.95rem;
    line-height: 1.4;
    word-break: break-all;
    flex: 1; /* 占据剩余空间 */
}

.item-actions {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
    align-items: center;
}

/* 修正删除模式样式 */
.delete-mode .btn-delete {
    display: flex !important;
}

.btn-delete {
    display: none;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    color: var(--danger);
    border-radius: 6px;
    padding: 4px 8px;
    cursor: pointer;
    font-size: 0.75rem;
    transition: all 0.2s;
}

.btn-edit {
    background: rgba(79, 70, 229, 0.1);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    border-radius: 6px;
    padding: 4px 8px;
    cursor: pointer;
    font-size: 0.75rem;
}

.footer-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
    padding-bottom: 40px;
}

/* 独立配置面板样式 */
.config-panel {
    background-color: var(--panel-bg);
    width: 90%;
    max-width: 1200px;
    height: 85vh;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.config-panel-header {
    padding: 24px 40px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255,255,255,0.02);
}

.panel-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

#close-config-btn {
    /* 继承 .icon-btn 即可 */
}

.config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    padding: 30px;
    overflow-y: auto;
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .config-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .config-grid {
        grid-template-columns: 1fr;
    }
    .config-panel {
        width: 100%;
        height: 100%;
        border-radius: 0;
    }
}

/* 步骤 2 响应式 */
.config-grid-2 {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 30px;
}

@media (max-width: 1400px) {
    .config-grid-2 {
        grid-template-columns: 1fr 320px;
    }
}

@media (max-width: 1100px) {
    .config-grid-2 {
        grid-template-columns: 1fr;
    }
}

.selection-sidebar, .selection-main {
    background-color: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 30px;
}

.badge-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-color);
    color: white;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 20px;
    margin-left: 10px;
    font-weight: 500;
}

.pool-list {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.pool-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    cursor: pointer;
}

.pool-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
}

/* 步骤 3 课表呈现 */
.timetable-container {
    margin-top: 30px;
    background-color: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow-x: auto;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.timetable {
    width: 100%;
    border-collapse: collapse;
    min-width: 1400px; 
    table-layout: auto;
    background: #fff; /* 回归至干净的白底专业感 */
    color: #333;
}

.timetable th {
    background-color: #f8f9fa;
    padding: 15px 10px;
    text-align: center;
    border: 1px solid #dee2e6;
    font-size: 0.95rem;
    color: #333;
    font-weight: 700;
}

.timetable td {
    padding: 12px 10px;
    border: 1px solid #dee2e6;
    vertical-align: middle;
    text-align: center;
    font-size: 0.85rem;
    color: #333;
    height: 90px;
}

/* 研学路径专用行 */
.route-row td {
    background: #fdfdfd;
    background: #fff9db22;
    font-size: 0.75rem !important;
    padding: 10px !important;
    color: #4f46e5 !important;
    font-weight: 500;
}

/* 统一仪式/休息行 */
.divider-row td {
    background-color: #f1f3f5;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 15px !important;
    color: #2b2f3a;
    letter-spacing: 1px;
}

.class-slot {
    display: flex;
    flex-direction: column;
    gap: 4px;
    line-height: 1.5;
}

.class-slot b {
    font-size: 0.9rem;
    font-weight: 600;
    color: #000;
}

.class-slot small {
    color: #666;
    font-size: 0.75rem;
}

.time-edit-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px;
    background: rgba(255,255,255,0.03);
    border-radius: 8px;
    margin-bottom: 8px;
}

.time-edit-row input[type="text"] {
    flex: 1;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
    color: #fff;
    padding: 5px 12px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.time-edit-row input[type="time"] {
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
    color: #fff;
    padding: 5px;
    border-radius: 4px;
    font-size: 0.85rem;
    width: 85px;
}

/* 弹窗样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal {
    background-color: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    width: 450px;
    max-width: 90vw;
    box-shadow: 0 25px 50px rgba(0,0,0,0.5);
    background: linear-gradient(145deg, #1e212b, #16181f);
}

.modal h3 {
    font-size: 1.25rem;
    margin-bottom: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-body {
    margin-bottom: 24px;
}

.modal-body input {
    width: 100%;
    padding: 14px 18px;
    background-color: rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
    color: white;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s;
}

.modal-body input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
    background: rgba(0,0,0,0.3);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.modal-footer .btn {
    padding: 10px 24px;
    font-weight: 600;
}

.main-select {
    width: 100%;
    max-width: 500px;
    padding: 15px 20px;
    background: var(--canvas-bg);
    border: 1px solid var(--border-color);
    color: white;
    border-radius: 12px;
    font-size: 1.1rem;
    margin-top: 20px;
}

.selection-card {
    background: var(--panel-bg);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 课程与地点网格化重构 */
.selection-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.sl-item {
    display: flex;
    flex-direction: column;
    padding: 24px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    transition: all 0.3s ease;
    cursor: default;
    position: relative;
    gap: 16px;
    min-height: 180px; /* 统一最小高度 */
    justify-content: space-between;
}

.sl-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.sl-course-name {
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.4;
    color: var(--text-primary);
    min-height: 3em; /* 保证两行高度的对齐 */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-clamp: 2; /* 标准属性 */
    overflow: hidden;
}

.icon-btn-delete {
    opacity: 0.8; /* 默认更明显 */
    font-size: 28px; /* 大一点 */
    background: rgba(239, 68, 68, 0.05); /* 淡淡的红底 */
    border-radius: 6px;
    width: 32px;
    height: 32px;
    display: flex;
    justify-content: center;
    align-items: center;
    line-height: 1;
    cursor: pointer;
    border: none;
    color: var(--danger);
}

.icon-btn-delete:hover {
    background: rgba(239, 68, 68, 0.2);
    opacity: 1;
}

.sl-top input[type="checkbox"] {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 2px;
}

.sl-course-name {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-primary);
}

.loc-wrap {
    margin-top: 5px;
    padding-top: 15px;
    border-top: 1px dashed var(--border-color);
    animation: fadeIn 0.3s ease;
}

.loc-wrap select {
    width: 100%;
    padding: 10px;
    background: var(--canvas-bg);
    border: 1px solid var(--border-color);
    color: white;
    border-radius: 8px;
    outline: none;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 连上绑定视觉重构 */
.binding-badge {
    display: flex;
    align-items: center;
    background: linear-gradient(90deg, rgba(79, 70, 229, 0.15) 0%, rgba(124, 58, 237, 0.05) 100%);
    border: 1px solid rgba(79, 70, 229, 0.3);
    border-radius: 14px;
    padding: 15px;
    margin-bottom: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.binding-info {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    color: var(--text-primary);
}

.link-icon {
    width: 24px;
    height: 24px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 14px;
}

.bind-selector-ui {
    margin-top: 25px;
    padding: 20px;
    background: rgba(255,255,255,0.02);
    border: 1px dashed var(--border-color);
    border-radius: 14px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.bind-selector-ui select {
    background: var(--canvas-bg);
    border: 1px solid var(--border-color);
    color: white;
    padding: 10px;
    border-radius: 8px;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

.card-p {
    background: var(--panel-bg);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.timetable [contenteditable="true"] {
    transition: background-color 0.2s;
    cursor: text;
    outline: none;
}

.timetable [contenteditable="true"]:hover {
    background-color: #f1f3f5 !important;
}

.timetable [contenteditable="true"]:focus {
    background-color: #fff !important;
    box-shadow: inset 0 0 0 2px #4f46e5;
}

.editable-time {
    background: #f8f9fa !important;
    font-weight: 600;
    min-width: 120px;
}
/* 时间配置步样式 */
.mode-toggle-group {
    width: 100%;
}

.mode-option {
    cursor: pointer;
    flex: 1;
}

.mode-option input[type="radio"] {
    display: none;
}

.mode-card {
    background: rgba(255, 255, 255, 0.02);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.mode-option input[type="radio"]:checked + .mode-card {
    border-color: var(--accent-color);
    background: rgba(79, 70, 229, 0.08);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(79, 70, 229, 0.15);
}

.mode-icon {
    font-size: 2.5rem;
    margin-bottom: 5px;
}

.mode-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.mode-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.config-row-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.config-row {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.config-row label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.config-row input {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    color: #fff;
    padding: 12px 15px;
    border-radius: 10px;
    font-size: 1rem;
    outline: none;
    transition: all 0.2s;
}

.config-row input:focus {
    border-color: var(--accent-color);
    background: rgba(0, 0, 0, 0.3);
}

#custom-time-configs.hidden {
    display: none;
}