/* 基础样式 */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --danger-color: #dc3545;
    --success-color: #198754;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
}

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

/* 布局样式 */
.control-panel {
    padding: 20px;
    background-color: var(--light-bg);
    border-right: 1px solid var(--border-color);
    height: 100vh;
    overflow-y: auto;
}

.chart-container {
    height: 100vh;
    padding: 20px;
}

#chartArea {
    width: 100%;
    height: 100%;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

/* 表格样式 */
.table {
    margin-bottom: 0;
}

.table th,
.table td {
    padding: 0.5rem;
    vertical-align: middle;
}

.type-column {
    width: 200px;
}

.add-column-header {
    width: 100px;
    padding: 0.5rem !important;
}

.add-column-cell {
    width: 100px;
}

/* 输入框样式 */
.form-control-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.month-input {
    width: calc(100% - 24px);
    display: inline-block;
}

/* 按钮样式 */
.btn-link {
    text-decoration: none;
    padding: 0.25rem;
}

.delete-column,
.delete-row {
    visibility: hidden;
    width: 24px;
    height: 24px;
    min-width: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

tr:hover .delete-column,
tr:hover .delete-row {
    visibility: visible;
}

.delete-column i,
.delete-row i {
    font-size: 12px;
    line-height: 1;
}

.delete-column:hover i,
.delete-row:hover i {
    color: var(--danger-color);
}

/* 颜色选择器样式 */
.color-picker {
    width: 30px;
    height: 30px;
    padding: 0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.color-picker::-webkit-color-swatch,
.color-picker::-moz-color-swatch {
    border-radius: 2px;
    border: none;
}

/* 主题样式 */
.theme-dark {
    background-color: #212529;
    color: #fff;
}

.theme-dark .control-panel,
.theme-dark .card {
    background-color: #343a40;
    border-color: #495057;
}

.theme-dark .form-control {
    background-color: #495057;
    border-color: #6c757d;
    color: #fff;
}

.theme-dark .nav-tabs {
    border-color: #495057;
}

.theme-dark .nav-tabs .nav-link.active {
    background-color: #343a40;
    border-color: #495057;
    color: #fff;
}

.theme-vintage {
    background-color: #f4ecd8;
}

.theme-vintage .control-panel {
    background-color: #f8f4e8;
}

.theme-vintage .card,
.theme-vintage .form-control {
    background-color: #fff9eb;
    border-color: #d4c9a8;
}

/* 表格标签样式 */
.nav-tabs .nav-link {
    position: relative;
    padding-right: 30px;
}

.nav-tabs .nav-link .delete-tab {
    display: none;
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    font-size: 14px;
    color: var(--secondary-color);
}

.nav-tabs .nav-link:hover .delete-tab {
    display: inline-block;
}

.nav-tabs .nav-link .delete-tab:hover {
    color: var(--danger-color);
}

.table-name {
    outline: none;
    padding: 2px 4px;
    border-radius: 3px;
    min-width: 30px;
}

.table-name:focus {
    background-color: #fff;
    box-shadow: 0 0 0 2px rgba(13, 110, 253, 0.25);
}

.table-name:empty:before {
    content: '未命名';
    color: #999;
}

/* 动画效果 */
.tab-pane {
    transition: opacity 0.3s ease-in-out;
}

.tab-pane.fade {
    opacity: 0;
}

.tab-pane.fade.show {
    opacity: 1;
}

/* 按钮样式优化 */
.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: #5a6268;
    border-color: #545b62;
}

.add-column,
.add-row {
    font-size: 0.875rem;
    padding: 0.25rem 0.5rem;
}