/* ============================================
   GEO系统 - 现代化UI样式
   版本: 3.0
   特点: 玻璃拟态、动画效果、响应式设计
   ============================================ */

/* CSS变量定义 */
:root {
    /* 主色调 - 紫色渐变 */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --primary-dark: #764ba2;
    
    /* 辅助色 */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    
    /* 背景色 */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: rgba(30, 41, 59, 0.8);
    
    /* 文字色 */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* 边框和阴影 */
    --border-color: rgba(148, 163, 184, 0.2);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);
    
    /* 间距 */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* 过渡 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* ============================================
   布局组件
   ============================================ */

.app-container {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 - 玻璃拟态效果 */
.sidebar {
    width: 260px;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    transition: var(--transition-normal);
}

.sidebar-header {
    padding: var(--space-xl);
    border-bottom: 1px solid var(--border-color);
    background: var(--primary-gradient);
    position: relative;
    overflow: hidden;
}

.sidebar-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: shimmer 3s infinite linear;
}

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

.sidebar-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
    position: relative;
    z-index: 1;
}

.sidebar-header p {
    font-size: 0.75rem;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

/* 导航菜单 */
.nav-menu {
    list-style: none;
    padding: var(--space-md);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    margin-bottom: var(--space-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    color: var(--text-secondary);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: var(--primary-gradient);
    transform: scaleY(0);
    transition: var(--transition-fast);
}

.nav-item:hover {
    background: rgba(102, 126, 234, 0.1);
    color: var(--text-primary);
}

.nav-item:hover::before {
    transform: scaleY(1);
}

.nav-item.active {
    background: rgba(102, 126, 234, 0.2);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.nav-item.active::before {
    transform: scaleY(1);
}

.nav-icon {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

/* 用户区域 */
.user-section {
    padding: var(--space-lg);
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.user-info {
    margin-bottom: var(--space-sm);
}

.user-name {
    font-size: 0.875rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.logout-btn {
    width: 100%;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.logout-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

/* 主内容区 */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: var(--space-xl);
    min-height: 100vh;
    background: var(--bg-primary);
}

/* ============================================
   页面头部
   ============================================ */

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    color: var(--text-muted);
    margin-top: var(--space-sm);
}

.header-actions {
    display: flex;
    gap: var(--space-md);
}

/* ============================================
   按钮组件
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-sm {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.75rem;
}

.btn-lg {
    padding: var(--space-lg) var(--space-xl);
    font-size: 1rem;
}

/* ============================================
   卡片组件 - 玻璃拟态
   ============================================ */

.card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(102, 126, 234, 0.3);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ============================================
   指标卡片
   ============================================ */

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.metric-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
}

.metric-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.metric-card:hover::after {
    transform: scaleX(1);
}

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

.metric-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-change {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
    margin-top: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.metric-change.positive {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.metric-change.negative {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

/* ============================================
   表单组件
   ============================================ */

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--space-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

/* ============================================
   标签和徽章
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-primary {
    background: rgba(102, 126, 234, 0.2);
    color: var(--primary-color);
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning-color);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
}

/* ============================================
   加载动画
   ============================================ */

.loading {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 骨架屏 */
.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ============================================
   消息提示
   ============================================ */

.message {
    position: fixed;
    top: var(--space-xl);
    right: var(--space-xl);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    z-index: 1000;
    animation: slideIn 0.3s ease;
    max-width: 400px;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.message-success {
    background: rgba(16, 185, 129, 0.9);
    color: white;
    backdrop-filter: blur(10px);
}

.message-error {
    background: rgba(239, 68, 68, 0.9);
    color: white;
    backdrop-filter: blur(10px);
}

.message-warning {
    background: rgba(245, 158, 11, 0.9);
    color: white;
    backdrop-filter: blur(10px);
}

/* ============================================
   响应式设计
   ============================================ */

@media (max-width: 1024px) {
    .sidebar {
        width: 200px;
    }
    
    .main-content {
        margin-left: 200px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: var(--space-md);
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        gap: var(--space-md);
        align-items: flex-start;
    }
}

/* ============================================
   工具类
   ============================================ */

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

.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }

.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }

.hidden { display: none !important; }
.visible { visibility: visible !important; }
.invisible { visibility: hidden !important; }

/* 渐变文字 */
.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 玻璃效果 */
.glass {
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 悬浮效果 */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

/* ==================== 优化方案展示样式 ==================== */
.plan-result-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.plan-summary-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    display: flex;
    gap: 2rem;
    align-items: center;
    box-shadow: var(--shadow-lg);
}

.plan-summary-icon {
    font-size: 3rem;
    opacity: 0.9;
}

.plan-summary-content {
    flex: 1;
}

.plan-summary-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.plan-summary-desc {
    opacity: 0.9;
    font-size: 0.875rem;
}

.investment-section {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.investment-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.investment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.investment-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    transition: var(--transition-normal);
}

.investment-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.investment-item-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.investment-item-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.feeding-section {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-top: 1rem;
}

.feeding-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.feeding-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.feeding-item-keyword {
    font-weight: 600;
    color: var(--text-primary);
}

.feeding-item-amount {
    color: var(--primary-color);
    font-weight: 700;
}

.plan-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    justify-content: flex-end;
}

/* 响应式优化方案 */
@media (max-width: 768px) {
    .plan-summary-card {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .investment-grid {
        grid-template-columns: 1fr;
    }
    
    .plan-actions {
        flex-direction: column;
    }
}