/* 期货交易工具网站 - 通用样式 */

/* 全局变量 */
:root {
    --primary-color: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* 工具页面通用样式 */
.tool-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.tool-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.tool-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

.back-button {
    position: absolute;
    top: 2rem;
    left: 2rem;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    font-weight: 500;
}

.back-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateX(-2px);
}

/* 卡片样式 */
.card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    margin-bottom: 2rem;
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 输入框样式 */
.input-group {
    margin-bottom: 1.5rem;
}

.input-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.input-field {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.input-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* 按钮样式 */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #d97706;
    transform: translateY(-2px);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

/* 结果显示样式 */
.result-display {
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    margin-top: 2rem;
}

.result-value {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.result-label {
    font-size: 1.2rem;
    color: #6b7280;
}

.profit {
    color: var(--success-color);
}

.loss {
    color: var(--danger-color);
}

/* 网格布局 */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-cols-1 {
    grid-template-columns: 1fr;
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 768px) {
    .grid-cols-2,
    .grid-cols-3 {
        grid-template-columns: 1fr;
    }
}

/* 响应式工具 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

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

.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }

.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.pulse {
    animation: pulse 2s infinite;
}

/* 状态指示器 */
.status-indicator {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

.status-online {
    background: var(--success-color);
    box-shadow: 0 0 6px rgba(16, 185, 129, 0.5);
}

.status-offline {
    background: #6b7280;
}

.status-warning {
    background: var(--warning-color);
    box-shadow: 0 0 6px rgba(245, 158, 11, 0.5);
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* 提示框样式 */
.alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border-left: 4px solid;
}

.alert-success {
    background: #f0fdf4;
    border-color: var(--success-color);
    color: #166534;
}

.alert-warning {
    background: #fffbeb;
    border-color: var(--warning-color);
    color: #92400e;
}

.alert-danger {
    background: #fef2f2;
    border-color: var(--danger-color);
    color: #991b1b;
}

.alert-info {
    background: #eff6ff;
    border-color: var(--info-color);
    color: #1e40af;
}

/* 工具提示 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltip-text {
    visibility: hidden;
    width: 200px;
    background-color: var(--dark-color);
    color: white;
    text-align: center;
    border-radius: var(--border-radius);
    padding: 0.5rem;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.875rem;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --light-color: #1f2937;
        --dark-color: #f9fafb;
    }
    
    body {
        background-color: #111827;
        color: #f9fafb;
    }
    
    .card {
        background: #1f2937;
        color: #f9fafb;
    }
    
    .input-field {
        background: #374151;
        border-color: #4b5563;
        color: #f9fafb;
    }
    
    .input-label {
        color: #f9fafb;
    }
}