/**
 * 班级操行分管理系统 - 全局样式
 * 
 * 开发者: Canglan
 * 联系方式: admin@sea-studio.top
 * 版权归属: Sea Network Technology Studio
 * 许可证: MIT License
 * 
 * 版权所有 © Sea Network Technology Studio
 */

:root {
    /* 主色调 */
    --color-primary: #4361ee;
    --color-primary-light: #eef0ff;
    --color-primary-dark: #3651d4;
    --color-primary-hover: #3a56d4;
    
    /* 语义色 */
    --color-danger: #e53e3e;
    --color-danger-light: #fff5f5;
    --color-danger-dark: #c53030;
    --color-success: #38a169;
    --color-success-light: #f0fff4;
    --color-warning: #d69e2e;
    --color-warning-light: #fffff0;
    
    /* 灰度 */
    --color-text: #1a202c;
    --color-text-secondary: #4a5568;
    --color-text-muted: #a0aec0;
    --color-bg: #f5f7fb;
    --color-card: #ffffff;
    --color-border: #e2e8f0;
    --color-border-light: #edf2f7;
    --color-hover: #f7fafc;
    
    /* 按钮 */
    --btn-primary-bg: var(--color-primary);
    --btn-primary-text: #ffffff;
    --btn-outline-bg: transparent;
    --btn-outline-border: var(--color-primary);
    --btn-outline-text: var(--color-primary);
    --btn-danger-bg: var(--color-danger);
    --btn-danger-text: #ffffff;
    --btn-ghost-text: var(--color-text-secondary);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--color-bg);
    min-height: 100vh;
    font-size: 14px;
    color: var(--color-text);
}

/* ========== 登录页面 ========== */
.login-container {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    width: 400px;
    max-width: 90%;
    margin: 100px auto;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 24px;
    color: var(--color-text);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--color-text-secondary);
    font-size: 14px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    margin-bottom: 6px;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.login-form input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.login-form input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.btn-login {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--color-primary) 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.3s;
}

.btn-login:hover {
    opacity: 0.9;
}

.error-msg {
    background: var(--color-danger-light);
    color: var(--color-danger);
    padding: 10px;
    border-radius: 8px;
    margin-top: 15px;
    text-align: center;
    font-size: 13px;
}

.login-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border-light);
    color: var(--color-text-muted);
    font-size: 12px;
}

/* ========== 公共头部 ========== */
.header {
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    padding: 12px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header h1 {
    font-size: 18px;
    color: var(--color-text);
}

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

.user-name {
    color: var(--color-text-secondary);
    font-weight: 500;
}

.user-role {
    background: var(--color-primary);
    color: white;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 11px;
}

.btn-logout {
    background: var(--color-danger);
    color: white;
    border: none;
    padding: 6px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    transition: background 0.3s;
}

.btn-logout:hover {
    background: var(--color-danger-dark);
}

/* ========== 导航菜单 ========== */
.nav {
    background: white;
    padding: 0 24px;
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    gap: 4px;
    overflow-x: auto;
}

.nav-item {
    padding: 12px 20px;
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
    border-bottom: 2px solid transparent;
    text-decoration: none;
    display: inline-block;
}

.nav-item:hover {
    color: var(--color-primary);
}

.nav-item.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* ========== 容器 ========== */
.container {
    max-width: 1200px;
    margin: 24px auto;
    padding: 0 24px;
}

/* ========== 卡片 ========== */
.card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.card-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary);
    color: var(--color-text);
}

/* ========== 统计卡片网格 ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.stat-value {
    font-size: 32px;
    font-weight: bold;
    color: var(--color-primary);
    margin: 10px 0;
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: 13px;
}

/* ========== 表格 ========== */
.table-wrapper {
    overflow-x: auto;
    overflow-y: visible;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
}

th {
    background: var(--color-hover);
    font-weight: 600;
    color: var(--color-text-secondary);
}

tr:hover {
    background: var(--color-hover);
}

/* ========== 状态标签 ========== */
.status-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.status-submitted {
    background: #c6f6d5;
    color: #22543d;
}

.status-not_submitted {
    background: #fed7d7;
    color: #742a2a;
}

.status-late {
    background: #feebc8;
    color: #7c2d12;
}

.status-present {
    background: #c6f6d5;
    color: #22543d;
}

.status-absent {
    background: #fed7d7;
    color: #742a2a;
}

.status-leave {
    background: #e9d8fd;
    color: #553c9a;
}

/* ========== 按钮 ========== */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s;
}

.btn-primary {
    background: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    border: 1px solid transparent;
}

.btn-primary:hover {
    background: var(--color-primary-hover);
}

.btn-danger {
    background: var(--btn-danger-bg);
    color: var(--btn-danger-text);
    border: 1px solid transparent;
}

.btn-danger:hover {
    background: var(--color-danger-dark);
}

.btn-success {
    background: var(--color-success-light);
    color: var(--color-success);
    border: 1px solid #c6f6d5;
}

.btn-success:hover {
    background: #c6f6d5;
}

.btn-warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
    border: 1px solid #fefcbf;
}

.btn-warning:hover {
    background: #fefcbf;
}

.btn-info {
    background: #e3f2fd;
    color: #1565c0;
    border: 1px solid #bbdefb;
}

.btn-info:hover {
    background: #bbdefb;
}

.btn-secondary {
    background: var(--color-hover);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-border-light);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary-light);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.btn-ghost:hover {
    background: var(--color-hover);
    border-color: var(--color-text-muted);
}

.btn-outline-danger {
    background: transparent;
    color: var(--color-danger);
    border: 1px solid var(--color-danger);
}

.btn-outline-danger:hover {
    background: var(--color-danger-light);
}

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

/* ========== 模态框 ========== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    border-radius: 12px;
    padding: 24px;
    width: 500px;
    max-width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border-light);
}

.modal-header h3 {
    font-size: 18px;
    color: var(--color-text);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-text-muted);
}

.modal-footer {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border-light);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* ========== 表单 ========== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group small {
    display: block;
    color: var(--color-text-muted);
    font-size: 12px;
    margin-top: 4px;
}

.form-group textarea {
    min-height: 60px;
    resize: vertical;
}

/* ========== 复选框组 ========== */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.checkbox-group input {
    width: auto;
}

/* ========== 操作栏 ========== */
.action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.action-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.search-bar {
    display: flex;
    gap: 10px;
}

.search-bar input {
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    width: 200px;
}

/* ========== 分页 ========== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.pagination a, .pagination span {
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    text-decoration: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    min-width: 36px;
    text-align: center;
    box-sizing: border-box;
    transition: all 0.2s;
}

.pagination a:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.pagination .active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.pagination .ellipsis {
    border: none;
    cursor: default;
    padding: 6px 4px;
    color: var(--color-text-muted);
    min-width: auto;
}

.pagination .page-jump {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: 8px;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.pagination .page-jump input {
    width: 50px;
    padding: 5px 8px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    text-align: center;
    font-size: 13px;
    outline: none;
}

.pagination .page-jump input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.15);
}

.pagination .page-nav {
    padding: 6px 10px;
    font-size: 13px;
}

/* ========== 提示消息 ========== */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    border-radius: 8px;
    color: white;
    font-size: 14px;
    z-index: 1100;
    animation: fadeInUp 0.3s ease;
}

.toast-success {
    background: var(--color-success);
}

.toast-error {
    background: var(--color-danger);
}

.toast-warning {
    background: #ed8936;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ========== 加载动画 ========== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========== 底部 ========== */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--color-text-muted);
    font-size: 12px;
}

/* ========== 记录项 ========== */
.record-item {
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.record-points {
    font-weight: bold;
}

.record-points.plus {
    color: var(--color-success);
}

.record-points.minus {
    color: var(--color-danger);
}

.record-reason {
    flex: 1;
    margin: 0 15px;
    color: var(--color-text-secondary);
}

.record-time {
    font-size: 12px;
    color: var(--color-text-muted);
}

.view-more {
    text-align: center;
    margin-top: 15px;
}

.view-more a {
    color: var(--color-primary);
    text-decoration: none;
}

.conduct-score {
    text-align: center;
    padding: 20px;
}

.score-number {
    font-size: 64px;
    font-weight: bold;
    color: var(--color-primary);
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    th, td {
        padding: 8px;
        font-size: 12px;
    }

    .card {
        padding: 16px;
    }

    .nav {
        padding: 0 16px;
    }

    .nav-item {
        padding: 10px 14px;
        font-size: 13px;
    }

    .action-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .search-bar {
        width: 100%;
    }

    .search-bar input {
        flex: 1;
    }
}

/* ========== 操作列下拉菜单 ========== */
.action-dropdown {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.action-dropdown-toggle {
    background: var(--color-hover);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    padding: 4px 10px;
    font-size: 12px;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s;
    white-space: nowrap;
}

.action-dropdown-toggle:hover {
    background: var(--color-border-light);
    border-color: #cbd5e0;
}

.action-dropdown-toggle.open {
    background: var(--color-border-light);
    border-color: var(--color-text-muted);
}

.action-dropdown-menu {
    display: none;
    position: absolute;
    bottom: 100%;
    right: 0;
    margin-bottom: 4px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    border: 1px solid var(--color-border);
    min-width: 120px;
    z-index: 200;
    overflow: hidden;
    padding: 4px 0;
}

.action-dropdown-menu.show {
    display: block;
}

.action-dropdown-menu a {
    display: block;
    padding: 8px 14px;
    color: var(--color-text-secondary);
    font-size: 13px;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s;
    white-space: nowrap;
}

.action-dropdown-menu a:hover {
    background: var(--color-hover);
    color: #2d3748;
}

.action-dropdown-menu a.danger {
    color: var(--color-danger);
    border-top: 1px solid var(--color-border-light);
    margin-top: 4px;
    padding-top: 10px;
}

.action-dropdown-menu a.danger:hover {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
}

@media (max-width: 768px) {
    .action-dropdown-menu {
        right: auto;
        left: 0;
    }
}

/* ========== 链接 ========== */
.link {
    color: var(--color-primary);
    text-decoration: none;
}

.link:hover {
    text-decoration: underline;
}

/* ========== 文本工具类 ========== */
.text-danger { color: var(--color-danger); }
.text-success { color: var(--color-success); }
.text-muted { color: var(--color-text-muted); }

/* ========== 标签 ========== */
.tag { padding: 2px 8px; border-radius: 10px; font-size: 12px; }
.tag-success { background: #e8f5e9; color: #2e7d32; }
.tag-danger { background: #ffebee; color: #c62828; }
.tag-warning { background: #fff3e0; color: #e65100; }
.tag-info { background: #e3f2fd; color: #1565c0; }

/* ========== 历史记录页优化 ========== */
/* 时间列：确保分两行显示（日期+时间） */
.history-time {
    white-space: nowrap;
    min-width: 80px;
    line-height: 1.5;
    vertical-align: top;
}

/* 原因列：每行最少7个字，自动换行 */
.history-reason {
    min-width: 7em;
    max-width: 200px;
    white-space: normal;
    word-break: break-word;
    line-height: 1.5;
    vertical-align: top;
}

/* 学生名列：允许换行 */
.history-students {
    white-space: normal;
    word-break: break-word;
    min-width: 60px;
    max-width: 120px;
    line-height: 1.5;
    vertical-align: top;
}

/* 合并记录复选框样式 */
.history-grouped-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 13px;
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: var(--color-hover);
    transition: all 0.2s;
    white-space: nowrap;
    user-select: none;
}

.history-grouped-label:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.history-grouped-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

/* 合并记录按钮样式 */
.btn-outline-danger {
    background: transparent;
    color: var(--color-danger);
    border: 1px solid var(--color-danger);
    padding: 4px 10px;
    font-size: 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-outline-danger:hover {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
    border-color: var(--color-danger-dark);
}