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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

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

/* 头部样式 */
.header {
    background-color: #4CAF50;
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo i {
    font-size: 1.5rem;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.nav {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* 按钮样式 */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}

.btn-primary {
    background-color: #4CAF50;
    color: white;
}

.btn-primary:hover {
    background-color: #45a049;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid #4CAF50;
    color: #4CAF50;
}

.btn-outline:hover {
    background-color: #4CAF50;
    color: white;
}

.btn-danger {
    background-color: #f44336;
    color: white;
}

.btn-danger:hover {
    background-color: #d32f2f;
}

.btn-back {
    background-color: transparent;
    color: #666;
}

.btn-back:hover {
    color: #333;
}

/* 主内容区域 */
.main {
    min-height: calc(100vh - 140px);
    padding: 20px 0;
}

/* 加载状态 */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #4CAF50;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 10px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 错误提示 */
.error-alert {
    background-color: #ffebee;
    color: #c62828;
    padding: 12px 0;
    margin-bottom: 20px;
}

.error-alert .container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-close {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    margin-left: auto;
}

/* 页面样式 */
.page {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e0e0e0;
}

.page-header h2 {
    font-size: 1.8rem;
    color: #333;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #666;
}

.empty-state i {
    font-size: 3rem;
    color: #4CAF50;
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

/* 花盆网格 */
.pots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.pot-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.pot-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.pot-image {
    height: 180px;
    overflow: hidden;
}

.pot-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.pot-card:hover .pot-image img {
    transform: scale(1.05);
}

.pot-info {
    padding: 15px;
}

.pot-info h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: #333;
}

.pot-info p {
    color: #666;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.pot-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #888;
}

.pot-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 认证表单 */
.auth-form {
    max-width: 400px;
    margin: 0 auto;
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.auth-form h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #555;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group input:focus {
    outline: none;
    border-color: #4CAF50;
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: #888;
    font-size: 0.8rem;
}

.auth-link {
    text-align: center;
    margin-top: 20px;
    color: #666;
}

.auth-link a {
    color: #4CAF50;
    text-decoration: none;
    cursor: pointer;
}

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

/* 模态框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content h3 {
    margin-bottom: 20px;
    color: #333;
}

/* 底部样式 */
.footer {
    background-color: #333;
    color: white;
    padding: 20px 0;
    text-align: center;
}

.footer p {
    margin-bottom: 5px;
}

.version {
    font-size: 0.8rem;
    color: #aaa;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .pots-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .page-header {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
    
    .auth-form {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .pots-grid {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .btn {
        padding: 6px 12px;
        font-size: 13px;
    }
}

/* 工具类 */
.hidden {
    display: none !important;
}

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

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

/* 用户菜单 */
.user-menu {
    display: flex;
    align-items: center;
    gap: 15px;
}

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

/* 花盆详情页 */
.pot-detail {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 表单验证样式 */
input:invalid {
    border-color: #f44336;
}

input:valid {
    border-color: #4CAF50;
}

/* 禁用状态 */
button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}