/**
 * 个人文件驿站 - 主样式表（浅色系）
 */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #F9FAFB 0%, #F3F4F6 100%);
    color: #374151;
    min-height: 100vh;
}

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

/* 导航栏 */
.navbar {
    background: #FFFFFF;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 24px;
    font-weight: bold;
    color: #0EA5E9;
    text-decoration: none;
}

.navbar-menu {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: #6B7280;
    font-size: 16px;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link:hover {
    background: #DBEAFE;
    color: #0EA5E9;
}

.nav-link.active {
    background: #DBEAFE;
    color: #0EA5E9;
}

/* 按钮 */
.btn {
    padding: 12px 24px;
    border-radius: 8px;
    border: none;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary {
    background: #0EA5E9;
    color: #FFFFFF;
}

.btn-primary:hover {
    background: #0284C7;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.btn-success {
    background: #10B981;
    color: #FFFFFF;
}

.btn-success:hover {
    background: #059669;
}

.btn-secondary {
    background: #E5E7EB;
    color: #374151;
}

.btn-secondary:hover {
    background: #D1D5DB;
}

/* 卡片 */
.card {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.card-title {
    font-size: 24px;
    font-weight: bold;
    color: #1F2937;
    margin-bottom: 10px;
}

.card-desc {
    font-size: 14px;
    color: #6B7280;
    margin-bottom: 20px;
}

/* 上传区域 */
.upload-area {
    border: 2px dashed #CBD5E1;
    border-radius: 12px;
    padding: 60px 20px;
    text-align: center;
    background: #F9FAFB;
    transition: all 0.3s;
    cursor: pointer;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: #0EA5E9;
    background: #EFF6FF;
}

.upload-icon {
    font-size: 64px;
    color: #CBD5E1;
    margin-bottom: 20px;
}

.upload-area:hover .upload-icon {
    color: #0EA5E9;
}

.upload-text {
    font-size: 18px;
    color: #374151;
    margin-bottom: 10px;
}

.upload-hint {
    font-size: 14px;
    color: #9CA3AF;
}

/* 进度条 */
.progress-bar {
    width: 100%;
    height: 8px;
    background: #E5E7EB;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 20px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #0EA5E9, #10B981);
    transition: width 0.3s;
    border-radius: 4px;
}

/* 输入框 */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    margin-bottom: 8px;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #D1D5DB;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: #0EA5E9;
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

/* 特色区域 */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.feature-card {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    font-size: 48px;
    color: #0EA5E9;
    margin-bottom: 15px;
}

.feature-title {
    font-size: 18px;
    font-weight: bold;
    color: #1F2937;
    margin-bottom: 10px;
}

.feature-desc {
    font-size: 14px;
    color: #6B7280;
    line-height: 1.6;
}

/* 响应式 */
@media (max-width: 768px) {
    .navbar-menu {
        gap: 10px;
    }
    
    .nav-link {
        font-size: 14px;
        padding: 6px 12px;
    }
    
    .container {
        padding: 15px;
    }
    
    .card {
        padding: 20px;
    }
    
    .upload-area {
        padding: 40px 15px;
    }
    
    .upload-icon {
        font-size: 48px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
}

/* 工具类 */
.text-center {
    text-align: center;
}

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

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

.hidden {
    display: none;
}

.text-sm {
    font-size: 14px;
}

.text-gray {
    color: #6B7280;
}