/* 导入Minecraft风格字体 */
@import url('minecraft-font.css');

/* 作业完成对比样式 */
:root {
    /* 颜色变量 */
    --primary-color: #4a6bfa;
    --primary-dark: #3651d1; /* 添加深色主色调 */
    --secondary-color: #6c757d;
    --background-color: #f5f7fe;
    --card-bg-color: #ffffff;
    --text-color: #333333;
    --border-color: #e0e0e0;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;

    /* 尺寸变量 */
    --header-height: 60px;
    --footer-height: 60px;
    --border-radius: 8px;
    --card-border-radius: 12px;
    --btn-border-radius: 6px;
    --input-border-radius: 6px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* 阴影变量 */
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    --btn-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --header-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    
    /* 字体变量 */
    --font-family: 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-md: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-xxl: 24px;
    
    /* 过渡变量 */
    --transition-speed: 0.3s;
}

/* 全局样式重置 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    color: var(--text-color);
    background-color: var(--background-color);
    line-height: 1.5;
    overflow-x: hidden;
}

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

ul, ol {
    list-style: none;
}

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

/* 页面容器 */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 顶部导航栏 */
.header {
    background-color: var(--primary-color);
    color: white;
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-lg);
    box-shadow: var(--header-shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    font-size: 1.8rem;
    color: var(--color-light);
}

.logo h1 {
    font-size: 1.5rem;
    margin: 0;
    /* 修改标题颜色为更醒目的颜色，增强文字阴影 */
    color: var(--color-primary-light);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3), 0 0 5px rgba(0, 0, 0, 0.2), 0 0 10px rgba(255, 255, 255, 0.2);
    font-weight: 700;
    transition: all 0.3s ease;
}

.user-info {
    display: flex;
    align-items: center;
}

.username {
    margin-right: var(--spacing-md);
    font-weight: 500;
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: white;
    color: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: var(--font-size-lg);
}

/* 主要内容区域 */
.main-content {
    flex: 1;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* 工具标题 */
.tool-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.tool-header h2 {
    font-size: 1.8rem;
    margin: 0;
    color: var(--color-primary);
    /* 增强标题文字阴影 */
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    font-weight: 600;
}

.module-description {
    color: var(--secondary-color);
    max-width: 700px;
    margin: 0 auto;
}

/* 控制面板 */
.control-panel {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--card-bg-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-md);
}

.class-selection {
    display: flex;
    align-items: center;
}

.class-selection label {
    margin-right: var(--spacing-sm);
    font-weight: 500;
}

.custom-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--input-border-radius);
    background-color: white;
    cursor: pointer;
    min-width: 180px;
}

.custom-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 107, 175, 0.25);
}

.student-management {
    display: flex;
    gap: var(--spacing-md);
}

/* 完成情况摘要 */
.completion-summary {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    background-color: var(--card-bg-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.summary-item {
    display: flex;
    align-items: center;
}

.summary-label {
    color: var(--secondary-color);
    margin-right: var(--spacing-xs);
}

.summary-value {
    font-weight: 600;
    color: var(--primary-color);
    font-size: var(--font-size-lg);
}

/* 对比容器 */
.comparison-container {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.student-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--card-bg-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.section-title {
    padding: var(--spacing-md);
    background-color: var(--light-color);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--primary-color);
}

.student-container {
    flex: 1;
    padding: var(--spacing-md);
    min-height: 400px;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-content: flex-start;
    overflow-y: auto;
}

.comparison-arrows {
    display: flex;
    align-items: center;
    color: var(--secondary-color);
    font-size: var(--font-size-xl);
}

.student-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 15px 10px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    cursor: move;
    transition: var(--transition-speed) ease;
    border: 1px solid var(--border-color);
}

.student-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.student-name {
    font-weight: 500;
    margin-bottom: 5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.student-number {
    font-size: 12px;
    color: var(--secondary-color);
}

.empty-placeholder {
    grid-column: 1 / -1;
    text-align: center;
    padding: 20px;
    color: var(--secondary-color);
    font-style: italic;
}

/* 按钮样式 */
.action-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-speed) ease;
}

.btn i {
    margin-right: 6px;
}

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

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

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

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

/* 页脚导航 */
.footer {
    height: var(--footer-height);
    background-color: white;
    border-top: 1px solid var(--border-color);
}

.footer-nav {
    height: 100%;
    display: flex;
    justify-content: space-around;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--secondary-color);
    text-decoration: none;
    padding: 0 15px;
    height: 100%;
    transition: var(--transition-speed) ease;
}

.nav-item i {
    font-size: 20px;
    margin-bottom: 4px;
}

.nav-item span {
    font-size: 12px;
}

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

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

/* 模态对话框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: white;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 450px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 18px;
    color: var(--text-color);
    margin: 0;
}

.close-modal {
    font-size: 22px;
    cursor: pointer;
    color: var(--secondary-color);
}

.close-modal:hover {
    color: var(--text-color);
}

.modal-body {
    padding: 15px;
}

.modal-footer {
    padding: 15px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 107, 175, 0.25);
}

/* 全屏模式 */
.fullscreen-mode {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: white;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    padding: 20px;
}

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

.exit-fullscreen {
    background-color: var(--secondary-color);
    color: white;
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .comparison-container {
        flex-direction: column;
    }
    
    .comparison-arrows {
        transform: rotate(90deg);
        padding: 10px 0;
    }
    
    .control-panel {
        flex-direction: column;
        gap: 15px;
    }
    
    .class-selection {
        width: 100%;
    }
    
    .custom-select {
        width: 100%;
    }
    
    .student-management {
        width: 100%;
        justify-content: space-between;
    }
    
    .completion-summary {
        flex-direction: column;
        gap: 10px;
    }
    
    .action-buttons {
        flex-wrap: wrap;
    }
    
    .btn {
        flex: 1;
        min-width: 120px;
    }
}

@media (max-width: 576px) {
    .student-management {
        flex-direction: column;
        gap: 10px;
    }
    
    .student-management .btn {
        width: 100%;
    }
}

/* 学生卡片形状类 */
.shape-rounded {
    border-radius: 20px;
}

.shape-square {
    border-radius: 5px;
}

.shape-pill {
    border-radius: 30px;
    padding-left: 20px;
    padding-right: 20px;
}

.shape-tag {
    border-radius: 4px 15px 15px 4px;
    padding-left: 15px;
    padding-right: 15px;
}

.shape-diamond {
    transform: rotate(45deg);
    padding: 15px;
    margin: 15px;
    text-align: center;
}

.shape-diamond span {
    display: block;
    transform: rotate(-45deg);
}

/* 学生卡片颜色类 */
.bg-blue {
    background-color: #e3f2fd;
    color: #0d47a1;
}

.bg-green {
    background-color: #e8f5e9;
    color: #1b5e20;
}

.bg-purple {
    background-color: #f3e5f5;
    color: #4a148c;
}

.bg-orange {
    background-color: #fff3e0;
    color: #e65100;
}

.bg-pink {
    background-color: #fce4ec;
    color: #880e4f;
}

.bg-teal {
    background-color: #e0f2f1;
    color: #004d40;
}

.bg-indigo {
    background-color: #e8eaf6;
    color: #1a237e;
}

.bg-brown {
    background-color: #efebe9;
    color: #3e2723;
}

/* 拖拽时的样式 */
.dragging {
    opacity: 0.7;
    transform: scale(1.05);
}

/* 悬停效果 */
.hover-effect {
    animation: pulse 1s infinite;
}

/* 放置目标区域样式 */
.drop-target {
    background-color: rgba(74, 107, 250, 0.1);
    border: 2px dashed var(--primary-color);
    border-radius: var(--border-radius);
}

/* 动画 */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.student-card.completed {
    animation: bounce 0.5s;
}

/* 新增的动画效果 */
@keyframes wobble {
    0%, 100% {
        transform: rotate(0deg) translateY(0);
    }
    25% {
        transform: rotate(-1deg) translateY(-2px);
    }
    50% {
        transform: rotate(0deg) translateY(0);
    }
    75% {
        transform: rotate(1deg) translateY(-1px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* 针对特殊形状的动画修正 */
.shape-diamond.hover-effect {
    animation: pulse-diamond 1s infinite;
}

@keyframes pulse-diamond {
    0% {
        transform: rotate(45deg) scale(1);
    }
    50% {
        transform: rotate(45deg) scale(1.05);
    }
    100% {
        transform: rotate(45deg) scale(1);
    }
}

/* 补充新增样式以支持所有功能 */
.btn:active {
    transform: translateY(1px);
    box-shadow: none;
}

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

.btn-secondary:active {
    background-color: #5a6268;
}

/* 黄色背景 */
.bg-yellow {
    background-color: #fff9c4;
    color: #ff6f00;
}

/* 红色背景 */
.bg-red {
    background-color: #ffebee;
    color: #b71c1c;
}

/* 青色背景 */
.bg-cyan {
    background-color: #e0f7fa;
    color: #006064;
}

/* 黄绿色背景 */
.bg-lime {
    background-color: #f0f4c3;
    color: #827717;
}

/* 琥珀色背景 */
.bg-amber {
    background-color: #fff8e1;
    color: #ff8f00;
}

/* 取消按钮悬停 */
#cancel-add-student:hover {
    background-color: #5a6268;
}

/* 学生卡片交互状态 */
.student-container:empty::before {
    content: "请添加学生数据";
    display: block;
    text-align: center;
    padding: 2rem;
    color: var(--secondary-color);
    font-style: italic;
}

/* 工具容器样式 */
.tool-container {
    max-width: 1200px;
    margin: 20px auto;
    background-color: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.tool-header {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--primary-color);
}

.tool-header h1 {
    color: #e74c3c; /* 修改为醒目的红色 */
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2); /* 添加文字阴影增强可见度 */
}

/* 统计面板样式 */
.stats-panel {
    display: flex;
    justify-content: space-around;
    background-color: var(--light-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.stat-item {
    text-align: center;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--secondary-color);
}

.stat-value {
    font-size: var(--font-size-xl);
    font-weight: bold;
    color: var(--primary-color);
}