/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主题色 */
    --primary-color: #4CAF50;
    --primary-hover: #45a049;
    --secondary-color: #f1f1f1;
    --secondary-hover: #e0e0e0;
    --danger-color: #f44336;
    --danger-hover: #d32f2f;
    --text-primary: #2c3e50;
    --text-secondary: #555;
    --border-color: #ddd;
    --success-bg: #e8f5e8;
    --success-text: #2e7d32;
    --error-bg: #ffebee;
    --error-text: #c62828;
    --info-bg: #e3f2fd;
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 15px rgba(0, 0, 0, 0.15);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: #f5f5f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    width: 100%;
}

.header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

.header h1 {
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 2rem;
    font-weight: 600;
}

.header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.form-container {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    margin-bottom: 30px;
    transition: var(--transition);
}

.form-container:hover {
    box-shadow: var(--shadow-hover);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

.form-hint {
    font-size: 12px;
    color: #888;
    margin-top: 5px;
}

/* 按钮样式 */
.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    display: inline-block;
    text-align: center;
    text-decoration: none;
    width: 100%;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(76, 175, 80, 0.2);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-primary);
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    transition: var(--transition);
    font-weight: 500;
}

.btn-secondary:hover {
    background-color: var(--secondary-hover);
    transform: translateY(-1px);
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-danger:hover {
    background-color: var(--danger-hover);
    transform: translateY(-1px);
}

.error-message {
    background-color: var(--error-bg);
    color: var(--error-text);
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    border-left: 4px solid var(--danger-color);
    font-size: 14px;
}

.success-message {
    background-color: var(--success-bg);
    color: var(--success-text);
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
    border-left: 4px solid var(--primary-color);
}

.info-display {
    background-color: var(--info-bg);
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    border-left: 4px solid #2196F3;
}

.footer {
    text-align: center;
    color: #666;
    margin-top: auto;
    padding: 20px 0;
    font-size: 14px;
}

/* 登录页面样式 */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.login-header {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.login-form {
    padding: 30px;
}

/* 后台页面样式 */
.backend-page {
    background-color: #f5f5f5;
}

.nav-menu {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    flex-wrap: wrap;
    padding: 15px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.user-info {
    text-align: right;
    margin-bottom: 20px;
    padding: 15px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.btn-logout {
    color: var(--danger-color);
    text-decoration: none;
    margin-left: 10px;
    font-weight: 500;
    transition: var(--transition);
}

.btn-logout:hover {
    text-decoration: underline;
}

/* 成功页面样式 */
.success-icon {
    font-size: 4em;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.tip-box {
    background-color: #fff8e1;
    padding: 15px;
    border-radius: 4px;
    margin-top: 20px;
    text-align: left;
    border-left: 4px solid #ff9800;
}

/* 表格样式 */
.table-container {
    overflow-x: auto;
    margin: 25px 0;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    padding: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th {
    background-color: #f8f9fa;
    color: var(--text-primary);
    font-weight: 600;
    text-align: left;
    padding: 15px;
    border-bottom: 2px solid #dee2e6;
    white-space: nowrap;
}

td {
    padding: 12px 15px;
    border-bottom: 1px solid #e9ecef;
    transition: var(--transition);
}

tr:hover td {
    background-color: #f8f9fa;
}

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

/* 筛选表单样式 */
.filter-form {
    background-color: white;
    padding: 25px;
    border-radius: var(--border-radius);
    margin: 20px 0;
    box-shadow: var(--shadow-light);
}

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

.form-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

/* 身份证图片样式 */
.id-card-image {
    max-width: 80px;
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: var(--transition);
}

.id-card-image:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal-content {
    max-width: 90%;
    max-height: 90%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* 标签样式 */
.type-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.type-companion {
    background-color: #2196f3;
    color: white;
}

/* 状态标签 */
.status-badge {
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 500;
    text-align: center;
}

.status-registered {
    background-color: var(--success-bg);
    color: var(--success-text);
}

.status-unregistered {
    background-color: #fff8e1;
    color: #ff9800;
}

.status-ended {
    background-color: var(--error-bg);
    color: var(--error-text);
}

/* 主客人和同行人员行样式 */
.main-guest-row {
    background-color: #f0f8ff;
}

.companion-row {
    background-color: #f9f9f9;
}

.companion-indent {
    padding-left: 30px;
    position: relative;
}

.companion-indent::before {
    content: "├─";
    position: absolute;
    left: 10px;
}

/* 表单行样式 */
.form-row {
    display: flex;
    gap: 20px;
    align-items: end;
    flex-wrap: wrap;
}

.form-row .form-group {
    flex: 1;
    min-width: 200px;
}

/* 批量操作样式 */
.batch-actions {
    margin: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

/* 复选框样式 */
.checkbox-cell {
    width: 50px;
    text-align: center;
}

/* 同行人员表单样式 */
.companion-section {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid #e0e0e0;
}

.companion-form {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 15px;
    position: relative;
    border-left: 4px solid #2196f3;
}

.remove-companion {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.remove-companion:hover {
    background-color: var(--danger-hover);
    transform: scale(1.1);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

/* 房间选择样式 */
.room-selection {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.room-card {
    background-color: #e3f2fd;
    border: 2px solid #bbdefb;
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 150px;
}

.room-card:hover {
    background-color: #bbdefb;
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    border-color: #2196f3;
}

.room-number {
    font-size: 2rem;
    font-weight: bold;
    color: #1976d2;
    margin-bottom: 15px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .header h1 {
        font-size: 1.6rem;
    }
    
    .form-container {
        padding: 20px;
    }
    
    .filter-row {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        flex-direction: column;
    }
    
    .nav-menu a {
        width: 100%;
        text-align: center;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .table-container {
        padding: 10px;
    }
    
    th, td {
        padding: 10px 8px;
        font-size: 13px;
    }
    
    .room-selection {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .action-buttons button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.4rem;
    }
    
    .form-group input,
    .form-group select {
        padding: 10px;
        font-size: 14px;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 10px 16px;
        font-size: 14px;
    }
    
    .companion-form {
        padding: 15px;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-container,
.table-container,
.filter-form,
.nav-menu {
    animation: fadeIn 0.5s ease-out;
}

/* 打印样式 */
@media print {
    .nav-menu,
    .filter-form,
    .batch-actions,
    .action-buttons {
        display: none;
    }
    
    .table-container {
        box-shadow: none;
    }
    
    body {
        background: white;
    }
}