/**
 * 量化交易系统 - 品牌统一风格样式
 * 定义系统的视觉识别、色彩体系和设计语言
 */

/* ==================== 品牌色彩体系 ==================== */
:root {
    /* 主色调 - 专业金融蓝 */
    --primary-color: #1e3a8a;
    --primary-light: #3b82f6;
    --primary-dark: #1e40af;
    --primary-gradient: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    
    /* 辅助色 - 成功绿/警告橙/危险红 */
    --success-color: #059669;
    --success-light: #10b981;
    --warning-color: #d97706;
    --warning-light: #f59e0b;
    --danger-color: #dc2626;
    --danger-light: #ef4444;
    
    /* 中性色系 */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* 背景色系 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    
    /* 文字色系 */
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-inverse: #ffffff;
    
    /* 边框和阴影 */
    --border-color: #e5e7eb;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* 动画时长 */
    --transition-fast: 150ms;
    --transition-normal: 300ms;
    --transition-slow: 500ms;
}

/* ==================== 品牌字体系统 ==================== */
.brand-font-primary {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 600;
    line-height: 1.2;
}

.brand-font-secondary {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
    font-weight: 400;
}

.brand-font-display {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.025em;
}

/* ==================== 品牌标志和Logo ==================== */
.brand-logo {
    display: inline-flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-inverse);
    text-decoration: none;
    transition: all var(--transition-normal) ease;
}

.brand-logo:hover {
    color: var(--text-inverse);
    transform: scale(1.05);
}

.brand-logo-icon {
    margin-right: 0.75rem;
    font-size: 1.75rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-tagline {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: 0.25rem;
}

/* ==================== 品牌按钮系统 ==================== */
.btn-brand {
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.75rem 1.5rem;
    transition: all var(--transition-normal) ease;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-brand::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 var(--transition-slow) ease;
}

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

.btn-brand-primary {
    background: var(--primary-gradient);
    color: var(--text-inverse);
    box-shadow: var(--shadow-md);
}

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

.btn-brand-secondary {
    background: var(--bg-primary);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-brand-secondary:hover {
    background: var(--primary-color);
    color: var(--text-inverse);
    transform: translateY(-1px);
}

.btn-brand-success {
    background: linear-gradient(135deg, var(--success-color) 0%, var(--success-light) 100%);
    color: var(--text-inverse);
}

.btn-brand-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, var(--warning-light) 100%);
    color: var(--text-inverse);
}

.btn-brand-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, var(--danger-light) 100%);
    color: var(--text-inverse);
}

/* ==================== 品牌卡片系统 ==================== */
.card-brand {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal) ease;
    overflow: hidden;
    position: relative;
}

.card-brand:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.card-brand::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-normal) ease;
}

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

.card-brand-featured {
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.card-brand-featured::before {
    transform: scaleX(1);
}

/* ==================== 品牌导航系统 ==================== */
.navbar-brand {
    background: var(--primary-gradient);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: #1a252f !important; /* 深色文字，确保对比度 */
    text-shadow: 0 1px 2px rgba(0,0,0,0.2); /* 添加文字阴影 */
}

.nav-link-brand {
    color: #1a252f !important; /* 深色文字，提高对比度 */
    font-weight: 600; /* 加粗字体 */
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-normal) ease;
    position: relative;
    text-shadow: 0 1px 1px rgba(0,0,0,0.1); /* 添加文字阴影 */
}

.nav-link-brand:hover {
    color: #0056b3 !important; /* 悬停时使用深蓝色 */
    background: rgba(0,123,255,0.1); /* 悬停背景色 */
    transform: translateY(-1px);
    text-shadow: 0 1px 2px rgba(0,0,0,0.2); /* 悬停时增强阴影 */
}

.nav-link-brand.active {
    color: #0056b3 !important; /* 激活状态使用深蓝色 */
    background: rgba(0,123,255,0.15); /* 激活状态背景色 */
    font-weight: 700; /* 激活状态加粗 */
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

/* ==================== 品牌输入框系统 ==================== */
.form-control-brand {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 0.875rem 1rem;
    font-size: 0.875rem;
    transition: all var(--transition-normal) ease;
    background: var(--bg-primary);
}

.form-control-brand:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
    outline: none;
}

.form-floating-brand .form-control-brand {
    height: 3.5rem;
    padding: 1rem;
}

.form-floating-brand label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ==================== 品牌表格系统 ==================== */
.table-brand {
    border-collapse: separate;
    border-spacing: 0;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table-brand th {
    background: var(--bg-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
    padding: 1rem;
}

.table-brand td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.table-brand tbody tr:hover {
    background: var(--bg-secondary);
}

/* ==================== 品牌徽章系统 ==================== */
.badge-brand {
    padding: 0.375rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge-brand-primary {
    background: var(--primary-gradient);
    color: var(--text-inverse);
}

.badge-brand-success {
    background: var(--success-color);
    color: var(--text-inverse);
}

.badge-brand-warning {
    background: var(--warning-color);
    color: var(--text-inverse);
}

.badge-brand-danger {
    background: var(--danger-color);
    color: var(--text-inverse);
}

/* ==================== 品牌图标系统 ==================== */
.icon-brand {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: var(--text-inverse);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    transition: all var(--transition-normal) ease;
}

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

.icon-brand-lg {
    width: 4rem;
    height: 4rem;
    font-size: 1.5rem;
}

.icon-brand-sm {
    width: 2rem;
    height: 2rem;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

/* ==================== 品牌进度条系统 ==================== */
.progress-brand {
    height: 0.5rem;
    background: var(--bg-secondary);
    border-radius: 1rem;
    overflow: hidden;
}

.progress-brand-bar {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 1rem;
    transition: width var(--transition-slow) ease;
    position: relative;
    overflow: hidden;
}

.progress-brand-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: progressShine 2s infinite;
}

@keyframes progressShine {
    0% { left: -100%; }
    50%, 100% { left: 100%; }
}

/* ==================== 品牌Alert系统 ==================== */
.alert-brand {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    border: none;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}

.alert-brand::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: currentColor;
}

.alert-brand-primary {
    background: rgba(30, 58, 138, 0.1);
    color: var(--primary-dark);
    border-left: 4px solid var(--primary-color);
}

.alert-brand-success {
    background: rgba(5, 150, 105, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.alert-brand-warning {
    background: rgba(217, 119, 6, 0.1);
    color: var(--warning-color);
    border-left: 4px solid var(--warning-color);
}

.alert-brand-danger {
    background: rgba(220, 38, 38, 0.1);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

/* ==================== 品牌动画效果 ==================== */
.animate-fade-in {
    animation: fadeInUp 0.6s ease-out;
}

.animate-slide-in {
    animation: slideInRight 0.5s ease-out;
}

.animate-bounce-in {
    animation: bounceIn 0.8s ease-out;
}

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

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

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* ==================== 品牌响应式断点 ==================== */
@media (max-width: 768px) {
    .btn-brand {
        padding: 0.625rem 1.25rem;
        font-size: 0.8rem;
    }
    
    .card-brand {
        margin-bottom: 1rem;
    }
    
    .icon-brand {
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1rem;
    }
    
    .brand-logo {
        font-size: 1.25rem;
    }
}

/* ==================== 品牌专用工具类 ==================== */
.text-brand-primary { color: var(--primary-color) !important; }
.text-brand-success { color: var(--success-color) !important; }
.text-brand-warning { color: var(--warning-color) !important; }
.text-brand-danger { color: var(--danger-color) !important; }

.bg-brand-primary { background: var(--primary-gradient) !important; }
.bg-brand-secondary { background: var(--bg-secondary) !important; }
.bg-brand-tertiary { background: var(--bg-tertiary) !important; }

.border-brand { border-color: var(--border-color) !important; }
.border-brand-primary { border-color: var(--primary-color) !important; }

.shadow-brand-sm { box-shadow: var(--shadow-sm) !important; }
.shadow-brand-md { box-shadow: var(--shadow-md) !important; }
.shadow-brand-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-brand-xl { box-shadow: var(--shadow-xl) !important; }

.rounded-brand { border-radius: var(--border-radius) !important; }
.rounded-brand-sm { border-radius: var(--border-radius-sm) !important; }
.rounded-brand-lg { border-radius: var(--border-radius-lg) !important; }