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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-title {
    font-size: 1.5rem;
    color: #667eea;
    margin: 0;
}

.nav-link {
    text-decoration: none;
    color: inherit;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-name {
    font-weight: 500;
}

.user-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
}

.user-badge.admin {
    background: #fef3c7;
    color: #92400e;
}

.user-badge.user {
    background: #dbeafe;
    color: #1e40af;
}

/* 登录页面 */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-box {
    background: white;
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.login-box h1 {
    color: #667eea;
    text-align: center;
    margin-bottom: 0.5rem;
}

.login-box h2 {
    text-align: center;
    color: #666;
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 2rem;
}

.error-message {
    background: #fee2e2;
    color: #991b1b;
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    text-align: center;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

/* 禁用数字输入框的滚轮 */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

/* 禁用滚轮改变数字输入框的值 */
input[type="number"]:focus {
    -moz-appearance: textfield;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* 按钮样式 */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #6b7280;
    color: white;
}

.btn-secondary:hover {
    background: #4b5563;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* 仪表盘 */
.dashboard-header {
    text-align: center;
    color: white;
    margin-bottom: 3rem;
}

.dashboard-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.dashboard-header p {
    font-size: 1.25rem;
    opacity: 0.9;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.tool-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.tool-icon {
    color: #667eea;
    margin-bottom: 1rem;
}

.tool-card h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.tool-card p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.empty-state {
    text-align: center;
    color: white;
    padding: 3rem;
}

/* 工具页面 */
.tool-header {
    text-align: center;
    color: white;
    margin-bottom: 2rem;
}

.tool-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.tool-content {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.form-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e5e7eb;
}

.form-section:last-of-type {
    border-bottom: none;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.section-header h3 {
    color: #1f2937;
    font-size: 1.5rem;
}

.asset-class-card {
    background: #f9fafb;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
}

.asset-class-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.asset-class-title {
    font-weight: 600;
    color: #1f2937;
}

.remove-asset-class {
    background: #ef4444;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-size: 0.875rem;
}

.remove-asset-class:hover {
    background: #dc2626;
}

.asset-items {
    margin-top: 1rem;
}

.asset-item {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 0.75rem;
}

.asset-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.add-asset-item {
    background: #10b981;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-size: 0.875rem;
}

.add-asset-item:hover {
    background: #059669;
}

.remove-asset-item {
    background: #ef4444;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 0.25rem 0.75rem;
    cursor: pointer;
    font-size: 0.875rem;
}

.remove-asset-item:hover {
    background: #dc2626;
}

.form-actions {
    text-align: center;
    margin-top: 2rem;
}

/* 结果展示 */
.result-section {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    margin-top: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.result-section h3 {
    color: #1f2937;
    margin-bottom: 1.5rem;
}

.result-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
}

.result-table th,
.result-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.result-table th {
    background: #f9fafb;
    font-weight: 600;
    color: #374151;
}

.result-table tr:hover {
    background: #f9fafb;
}

.positive {
    color: #059669;
    font-weight: 600;
}

.negative {
    color: #dc2626;
    font-weight: 600;
}

.asset-class-result {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #f9fafb;
    border-radius: 12px;
}

.asset-class-result h4 {
    color: #1f2937;
    margin-bottom: 1rem;
}

.loading {
    text-align: center;
    padding: 2rem;
    color: #667eea;
}

.error {
    background: #fee2e2;
    color: #991b1b;
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
}

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

.modal-content {
    background-color: white;
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
}

.modal-header h3 {
    margin: 0;
    color: #1f2937;
}

.modal-close {
    font-size: 1.5rem;
    font-weight: bold;
    color: #6b7280;
    cursor: pointer;
    line-height: 1;
}

.modal-close:hover {
    color: #1f2937;
}

.modal-body {
    padding: 1.5rem;
}

/* 配置管理样式 */
.config-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.config-select {
    padding: 0.5rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 0.875rem;
    min-width: 200px;
}

.config-select:focus {
    outline: none;
    border-color: #667eea;
}

.user-badge.admin {
    background: #fef3c7;
    color: #92400e;
}

.user-badge.user {
    background: #dbeafe;
    color: #1e40af;
}