/* 全局页眉页脚样式 - 统一高度和响应式设计 */

:root {
    --navbar-height: 70px;
    --navbar-height-mobile: 60px;
    --footer-min-height: 200px;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --card-shadow: 0 10px 30px rgba(0,0,0,0.1);
    --hover-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

/* 统一页眉样式 */
.navbar {
    height: var(--navbar-height) !important;
    min-height: var(--navbar-height) !important;
    background: rgba(255,255,255,0.95) !important;
    backdrop-filter: blur(15px) !important;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1) !important;
    border-bottom: 1px solid rgba(255,255,255,0.2) !important;
    position: sticky !important;
    top: 0 !important;
    z-index: 1030 !important;
    transition: all 0.3s ease !important;
}

.navbar-brand {
    background: linear-gradient(135deg, #e67e22 0%, #f39c12 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
    font-weight: 700 !important;
    font-size: 1.5rem !important;
    height: auto !important;
    line-height: 1.2 !important;
    padding: 0.5rem 0 !important;
}

.navbar-nav {
    height: 100% !important;
    align-items: center !important;
}

.nav-link {
    color: #555 !important;
    font-weight: 500 !important;
    transition: all 0.3s ease !important;
    padding: 0.75rem 1rem !important;
    border-radius: 8px !important;
    margin: 0 0.25rem !important;
}

.nav-link:hover, .nav-link.active {
    color: #667eea !important;
    background: rgba(102, 126, 234, 0.1) !important;
    transform: translateY(-2px) !important;
}

/* 统一页脚样式 */
.footer {
    min-height: var(--footer-min-height) !important;
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%) !important;
    color: white !important;
    padding: 3rem 0 1.5rem 0 !important;
    margin-top: auto !important;
    position: relative !important;
    overflow: hidden !important;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 20%, rgba(52, 152, 219, 0.1) 0%, transparent 30%),
        radial-gradient(circle at 80% 80%, rgba(155, 89, 182, 0.1) 0%, transparent 30%);
    z-index: 0;
}

.footer * {
    position: relative;
    z-index: 1;
}

.footer h5 {
    color: #ecf0f1 !important;
    font-weight: 600 !important;
    margin-bottom: 1rem !important;
    font-size: 1.1rem !important;
}

.footer a {
    color: #bdc3c7 !important;
    text-decoration: none !important;
    transition: all 0.3s ease !important;
    display: inline-block !important;
}

.footer a:hover {
    color: #3498db !important;
    transform: translateX(5px) !important;
}

.footer .text-muted {
    color: #95a5a6 !important;
}

/* 响应式设计 */
@media (max-width: 991.98px) {
    .navbar {
        height: var(--navbar-height-mobile) !important;
        min-height: var(--navbar-height-mobile) !important;
    }
    
    .navbar-brand {
        font-size: 1.3rem !important;
    }
    
    .navbar-collapse {
        background: rgba(255,255,255,0.98) !important;
        backdrop-filter: blur(20px) !important;
        border-radius: 15px !important;
        margin-top: 0.5rem !important;
        padding: 1rem !important;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1) !important;
    }
    
    .nav-link {
        padding: 0.75rem 1rem !important;
        margin: 0.25rem 0 !important;
        border-radius: 10px !important;
    }
    
    .footer {
        padding: 2rem 0 1rem 0 !important;
        text-align: center !important;
    }
    
    .footer .row > div {
        margin-bottom: 1.5rem !important;
    }
}

@media (max-width: 767.98px) {
    .navbar-brand {
        font-size: 1.2rem !important;
    }
    
    .footer {
        min-height: auto !important;
        padding: 1.5rem 0 1rem 0 !important;
    }
    
    .footer h5 {
        font-size: 1rem !important;
        margin-bottom: 0.75rem !important;
    }
}

@media (max-width: 575.98px) {
    .navbar {
        padding: 0.5rem 1rem !important;
    }
    
    .navbar-brand {
        font-size: 1.1rem !important;
    }
    
    .footer {
        padding: 1rem 0 0.5rem 0 !important;
    }
}

/* 确保页面布局正确 */
html, body {
    height: 100% !important;
}

.main-wrapper {
    min-height: 100vh !important;
    display: flex !important;
    flex-direction: column !important;
}

.content-wrapper {
    flex: 1 !important;
    padding-top: 2rem !important;
    padding-bottom: 2rem !important;
}

/* 按钮统一样式 */
.btn {
    border-radius: 10px !important;
    font-weight: 500 !important;
    transition: all 0.3s ease !important;
    border: none !important;
    padding: 0.75rem 1.5rem !important;
}

.btn-primary {
    background: var(--primary-gradient) !important;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3) !important;
}

.btn-primary:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4) !important;
}

.btn-outline-light {
    border: 2px solid rgba(255,255,255,0.8) !important;
    color: rgba(255,255,255,0.9) !important;
    background: transparent !important;
}

.btn-outline-light:hover {
    background: rgba(255,255,255,0.2) !important;
    color: white !important;
    transform: translateY(-2px) !important;
}

/* 卡片统一样式 */
.card {
    border: none !important;
    border-radius: 20px !important;
    box-shadow: 
        var(--card-shadow),
        inset 0 1px 0 rgba(255,255,255,0.6) !important;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
    background: linear-gradient(145deg, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0.85) 100%) !important;
    backdrop-filter: blur(15px) !important;
    border: 1px solid rgba(255,255,255,0.3) !important;
    position: relative !important;
    overflow: hidden !important;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s;
    z-index: 0;
}

.card:hover {
    box-shadow: 
        var(--hover-shadow),
        inset 0 1px 0 rgba(255,255,255,0.8) !important;
    transform: translateY(-8px) scale(1.02) !important;
}

.card:hover::before {
    left: 100%;
}

.card-body {
    position: relative;
    z-index: 1;
}