/* 文文 - AI图片文案生成器 样式文件 */

/* 自定义字体 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap');

/* 全局变量 */
:root {
    --primary-color: #2D5A5A;
    --secondary-color: #D4B896;
    --accent-color: #F5F5F5;
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --border-color: #E5E7EB;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    scroll-behavior: smooth;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #1e4040;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 页面加载动画 */
.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* 导航栏增强 */
.navbar-blur {
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.9);
}

/* Logo动画 */
.logo-container:hover .logo-icon {
    transform: rotate(360deg);
    transition: transform 0.6s ease;
}

/* 按钮增强效果 */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #4A7C7C 100%);
    border: none;
    color: white;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--secondary-color);
    border: none;
    color: white;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: #c4a886;
    transform: translateY(-1px);
}

/* 卡片增强效果 */
.card-enhanced {
    background: white;
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.card-enhanced:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* 上传区域增强 */
.upload-area-enhanced {
    border: 2px dashed var(--secondary-color);
    border-radius: var(--border-radius);
    padding: 40px 20px;
    text-align: center;
    transition: var(--transition);
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.upload-area-enhanced::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(213, 184, 150, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.upload-area-enhanced:hover::before {
    opacity: 1;
}

.upload-area-enhanced:hover {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #f0f9ff 0%, #ffffff 100%);
    transform: scale(1.02);
}

.upload-area-enhanced.dragover {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #e0f2fe 0%, #f0f9ff 100%);
    transform: scale(1.05);
}

/* 文风选择增强 */
.style-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 16px;
    margin: 20px 0;
}

.style-option {
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    padding: 12px;
    border-radius: var(--border-radius);
    position: relative;
}

.style-option:hover {
    transform: translateY(-4px);
    background: rgba(45, 90, 90, 0.05);
}

.style-option.selected {
    background: rgba(45, 90, 90, 0.1);
    transform: translateY(-2px);
}

.style-option.selected::after {
    content: '✓';
    position: absolute;
    top: 4px;
    right: 4px;
    background: var(--primary-color);
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.author-avatar-enhanced {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 8px;
    border: 3px solid transparent;
    transition: var(--transition);
}

.style-option:hover .author-avatar-enhanced {
    border-color: var(--secondary-color);
    transform: scale(1.1);
}

.style-option.selected .author-avatar-enhanced {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(45, 90, 90, 0.2);
}

/* 字数选择增强 */
.word-count-selector {
    display: flex;
    gap: 12px;
    margin: 20px 0;
}

.word-count-option {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: white;
    font-weight: 500;
}

.word-count-option:hover {
    border-color: var(--secondary-color);
    background: rgba(213, 184, 150, 0.1);
}

.word-count-option.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

/* 示例区域增强 */
.example-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 16px;
    border-left: 4px solid var(--secondary-color);
    transition: var(--transition);
    position: relative;
}

.example-card:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--primary-color);
}

.example-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 48px;
    color: var(--secondary-color);
    font-family: serif;
    opacity: 0.3;
}

/* 功能卡片增强 */
.feature-card {
    text-align: center;
    padding: 32px 24px;
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), #4A7C7C);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

/* 价格卡片增强 */
.pricing-card {
    background: white;
    border-radius: 16px;
    padding: 40px 32px;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(45, 90, 90, 0.02), rgba(213, 184, 150, 0.02));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.pricing-card:hover::before {
    opacity: 1;
}

.pricing-card:hover {
    border-color: var(--primary-color);
    transform: scale(1.02);
}

/* 页脚增强 */
.footer-enhanced {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: white;
    position: relative;
}

.footer-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--secondary-color), transparent);
}

/* 响应式设计增强 */
@media (max-width: 768px) {
    .style-selector {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
    
    .word-count-selector {
        flex-direction: column;
    }
    
    .feature-card {
        padding: 24px 16px;
    }
    
    .pricing-card {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .style-selector {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .author-avatar-enhanced {
        width: 50px;
        height: 50px;
    }
}

/* 加载状态 */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 成功状态 */
.success-message {
    background: linear-gradient(135deg, #10B981, #059669);
    color: white;
    padding: 16px 24px;
    border-radius: var(--border-radius);
    margin: 16px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: fadeInUp 0.5s ease;
}

/* 错误状态 */
.error-message {
    background: linear-gradient(135deg, #EF4444, #DC2626);
    color: white;
    padding: 16px 24px;
    border-radius: var(--border-radius);
    margin: 16px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: fadeInUp 0.5s ease;
}

/* 工具提示 */
.tooltip {
    position: relative;
    cursor: help;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 1000;
}

.tooltip:hover::before {
    opacity: 1;
}