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

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

/* 主容器 */
.app-container {
    max-width: 414px;
    margin: 0 auto;
    min-height: 100vh;
    background: #f8f9fa;
    position: relative;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

/* 顶部导航栏 */
.header {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: white;
    padding: 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(-50%, -50%) rotate(0deg); }
    50% { transform: translate(-50%, -50%) rotate(180deg); }
}

.header-content {
    position: relative;
    z-index: 1;
}

.app-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.app-subtitle {
    font-size: 14px;
    opacity: 0.9;
    font-weight: 300;
}

/* 主要内容区域 */
.main-content {
    padding: 20px;
    padding-bottom: 100px;
}

/* 概览卡片 */
.overview-card {
    background: white;
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.card-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: #374151;
}

.total-value {
    font-size: 24px;
    font-weight: 700;
    color: #8b5cf6;
}

.portfolio-summary {
    display: flex;
    gap: 20px;
}

.summary-item {
    flex: 1;
    text-align: center;
}

.summary-item .label {
    display: block;
    font-size: 12px;
    color: #6b7280;
    margin-bottom: 4px;
}

.summary-item .value {
    display: block;
    font-size: 16px;
    font-weight: 600;
}

.summary-item .value.positive {
    color: #10b981;
}

.summary-item .value.negative {
    color: #ef4444;
}

/* 底部导航栏 */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 414px;
    background: white;
    border-top: 1px solid #e5e7eb;
    display: flex;
    padding: 8px 0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
    z-index: 100;
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 8px;
    margin: 0 4px;
}

.nav-item:hover {
    background: rgba(139, 92, 246, 0.1);
}

.nav-item.active {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
}

.nav-icon {
    font-size: 20px;
    margin-bottom: 4px;
}

.nav-item span {
    font-size: 12px;
    font-weight: 500;
}

/* 页面样式 */
.page {
    padding: 20px;
    padding-bottom: 100px;
    min-height: calc(100vh - 120px);
}

.page.hidden {
    display: none;
}

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

.page-header h2 {
    font-size: 20px;
    font-weight: 600;
    color: #374151;
}

.add-btn {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: white;
    border: none;
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.add-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

/* 持仓列表 */
.holdings-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.holding-item {
    background: white;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 1px solid #f3f4f6;
    transition: all 0.3s ease;
}

.holding-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.stock-info {
    margin-bottom: 8px;
}

.stock-name {
    font-size: 16px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 2px;
}

.stock-code {
    font-size: 12px;
    color: #6b7280;
}

.holding-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.shares {
    font-size: 14px;
    color: #6b7280;
}

.current-price {
    font-size: 16px;
    font-weight: 600;
    color: #374151;
}

.profit {
    font-size: 14px;
    font-weight: 500;
    text-align: right;
}

.profit.positive {
    color: #10b981;
}

.profit.negative {
    color: #ef4444;
}

/* 计划列表 */
.plans-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.plan-item {
    background: white;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 1px solid #f3f4f6;
}

.plan-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.plan-status {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.plan-status.pending {
    background: rgba(251, 191, 36, 0.1);
    color: #f59e0b;
}

.plan-status.completed {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.plan-details {
    margin-bottom: 12px;
}

.plan-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 4px;
    font-size: 14px;
}

.plan-row .label {
    color: #6b7280;
}

.plan-row .value {
    font-weight: 500;
    color: #374151;
}

.plan-progress {
    display: flex;
    align-items: center;
    gap: 8px;
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: #e5e7eb;
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #8b5cf6 0%, #7c3aed 100%);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 12px;
    color: #6b7280;
    white-space: nowrap;
}

/* 时间线 */
.timeline {
    position: relative;
    padding-left: 20px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #8b5cf6 0%, #7c3aed 100%);
}

.timeline-item {
    position: relative;
    margin-bottom: 24px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -16px;
    top: 8px;
    width: 12px;
    height: 12px;
    background: #8b5cf6;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 2px #8b5cf6;
}

.timeline-date {
    font-size: 12px;
    color: #6b7280;
    margin-bottom: 8px;
    font-weight: 500;
}

.timeline-content {
    background: white;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 1px solid #f3f4f6;
}

.transaction-card {
    width: 100%;
}

.transaction-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.transaction-type {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.transaction-type.buy {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.transaction-type.sell {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.transaction-details {
    margin-bottom: 12px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 4px;
    font-size: 14px;
}

.transaction-thoughts {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 12px;
    border-left: 3px solid #8b5cf6;
}

.transaction-thoughts h4 {
    font-size: 14px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 8px;
}

.transaction-thoughts p {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.5;
}

/* 工具网格 */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.tool-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 1px solid #f3f4f6;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.15);
    border-color: #8b5cf6;
}

.tool-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.tool-name {
    font-size: 16px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 4px;
}

.tool-desc {
    font-size: 12px;
    color: #6b7280;
}

/* 模态框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: 16px;
    width: 90%;
    max-width: 400px;
    max-height: 80vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal.show .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #e5e7eb;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: #374151;
}

.close-btn {
    background: none;
    border: none;
    font-size: 24px;
    color: #6b7280;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: #f3f4f6;
    color: #374151;
}

.modal-body {
    padding: 20px;
}

/* 响应式设计 */
@media (max-width: 375px) {
    .app-container {
        max-width: 100%;
    }
    
    .main-content {
        padding: 16px;
    }
    
    .page {
        padding: 16px;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
}

/* 小程序适配 */
@media (max-width: 320px) {
    .app-title {
        font-size: 24px;
    }
    
    .nav-item span {
        font-size: 11px;
    }
    
    .nav-icon {
        font-size: 18px;
    }
}

/* 动画效果 */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.holding-item,
.plan-item,
.timeline-content,
.tool-card {
    animation: slideInUp 0.3s ease forwards;
}

/* 加载状态 */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: #6b7280;
}

.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid #e5e7eb;
    border-top: 2px solid #8b5cf6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 8px;
}

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

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: #6b7280;
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-text {
    font-size: 16px;
    margin-bottom: 8px;
}

.empty-state-desc {
    font-size: 14px;
    opacity: 0.7;
}