/**
 * 移动端菜单美化终极版
 * 现代化设计 + 完美协调 + 高级视觉效果
 */

/* ========== Offcanvas 整体美化 ========== */
.offcanvas {
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.2) !important;
}

.offcanvas-start {
    width: 320px !important;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%) !important;
}

/* ========== Header 美化 ========== */
.offcanvas-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    padding: 1.5rem !important;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3) !important;
    position: relative;
    overflow: hidden;
    border-bottom: 3px solid rgba(255, 255, 255, 0.2);
}

.offcanvas-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.15; }
    50% { transform: scale(1.1); opacity: 0.25; }
}

.offcanvas-title {
    font-size: 1.3rem !important;
    font-weight: 700 !important;
    color: white !important;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin: 0 !important;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.offcanvas-title::before {
    content: '☰ ';
    font-size: 1.4rem;
    margin-right: 0.5rem;
}

.btn-close {
    filter: brightness(0) invert(1);
    opacity: 0.9;
    transition: all 0.3s ease;
}

.btn-close:hover {
    opacity: 1;
    transform: rotate(90deg);
}

/* ========== Body 区域美化 ========== */
.offcanvas-body {
    padding: 1rem 0 !important;
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 50%, #f8f9fa 100%) !important;
}

/* ========== 导航列表美化 ========== */
.mobile-nav {
    display: flex !important;
    flex-direction: column;
    gap: 0;
    padding: 0 !important;
}

.mobile-nav .nav-link {
    display: flex !important;
    align-items: center;
    padding: 1.1rem 1.5rem !important;
    margin: 0 1rem !important;
    color: #2c3e50 !important;
    text-decoration: none !important;
    font-weight: 600 !important;
    font-size: 1rem !important;
    border-radius: 12px !important;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1) !important;
    position: relative;
    background: white !important;
    border: 2px solid transparent !important;
    margin-bottom: 0.65rem !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05) !important;
}

.mobile-nav .nav-link::before {
    content: '🎮';
    position: absolute;
    left: 1.25rem;
    font-size: 1.2rem;
    opacity: 0;
    transform: translateX(-15px) scale(0.8);
    transition: all 0.35s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.mobile-nav .nav-link:nth-child(1)::before { content: '🏠'; }
.mobile-nav .nav-link:nth-child(2)::before { content: '🎮'; }
.mobile-nav .nav-link:nth-child(3)::before { content: '🎰'; }
.mobile-nav .nav-link:nth-child(4)::before { content: '⚽'; }
.mobile-nav .nav-link:nth-child(5)::before { content: '🎁'; }
.mobile-nav .nav-link:nth-child(6)::before { content: '🎉'; }
.mobile-nav .nav-link:nth-child(7)::before { content: '📱'; }

.mobile-nav .nav-link:hover,
.mobile-nav .nav-link:active {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.12) 0%, rgba(118, 75, 162, 0.12) 100%) !important;
    border-color: #667eea !important;
    color: #667eea !important;
    padding-left: 3.5rem !important;
    transform: translateX(6px) scale(1.02);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.25) !important;
}

.mobile-nav .nav-link:hover::before {
    opacity: 1;
    transform: translateX(0) scale(1.1);
}

.mobile-nav .nav-link:active {
    transform: translateX(2px) scale(0.98);
}

/* ========== 分隔线美化 ========== */
.mobile-nav hr {
    margin: 1rem 1.5rem !important;
    border: 0 !important;
    height: 3px !important;
    background: linear-gradient(90deg, transparent 0%, #667eea 20%, #764ba2 50%, #667eea 80%, transparent 100%) !important;
    opacity: 0.4 !important;
    border-radius: 2px !important;
}

/* ========== 按钮美化 ========== */
.mobile-nav .btn {
    margin: 0.75rem 1.5rem !important;
    padding: 1rem 1.75rem !important;
    font-weight: 700 !important;
    border-radius: 14px !important;
    text-align: center !important;
    text-decoration: none !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    font-size: 1rem !important;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border: none !important;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55) !important;
}

.mobile-nav .btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

.mobile-nav .btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4) !important;
}

.mobile-nav .btn-primary::after {
    content: '🔐';
    margin-left: 0.5rem;
    font-size: 1.1rem;
}

.mobile-nav .btn-primary:hover {
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.5) !important;
    transform: translateY(-3px) scale(1.03);
}

.mobile-nav .btn-warning {
    background: linear-gradient(135deg, #f7971e 0%, #ffd200 100%) !important;
    color: #1a1a2e !important;
    box-shadow: 0 6px 20px rgba(247, 151, 30, 0.4) !important;
}

.mobile-nav .btn-warning::after {
    content: '✨';
    margin-left: 0.5rem;
    font-size: 1.1rem;
}

.mobile-nav .btn-warning:hover {
    box-shadow: 0 8px 30px rgba(247, 151, 30, 0.5) !important;
    transform: translateY(-3px) scale(1.03);
}

.mobile-nav .btn:active {
    transform: translateY(0) scale(0.98);
}

.mobile-nav .mb-2 {
    margin-bottom: 0.75rem !important;
}


/* ========== 底部渐变效果 ========== */
.offcanvas-body::after {
    content: '';
    position: sticky;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.95) 100%);
    pointer-events: none;
}

/* ========== 滚动条美化 ========== */
.offcanvas-body::-webkit-scrollbar {
    width: 6px;
}

.offcanvas-body::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 10px;
}

.offcanvas-body::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
}

.offcanvas-body::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

/* ========== 激活状态 ========== */
.mobile-nav .nav-link.active,
.mobile-nav .nav-link[aria-current="page"] {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.12) 0%, rgba(118, 75, 162, 0.12) 100%) !important;
    border-color: rgba(102, 126, 234, 0.3) !important;
    color: #667eea !important;
    font-weight: 600 !important;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.15);
}

.mobile-nav .nav-link.active::before {
    opacity: 1;
    transform: translateX(0);
}

/* ========== 小屏优化 ========== */
@media (max-width: 480px) {
    .offcanvas-start {
        width: 300px;
    }
    
    .offcanvas-header {
        padding: 1rem 1.25rem !important;
    }
    
    .offcanvas-title {
        font-size: 1.1rem !important;
    }
    
    .mobile-nav .nav-link {
        padding: 0.875rem 1.25rem !important;
        margin: 0 0.5rem !important;
        font-size: 0.9rem !important;
    }
    
    .mobile-nav .nav-link:hover {
        padding-left: 2.25rem !important;
    }
    
    .mobile-nav .btn {
        margin: 0.5rem 1rem !important;
        padding: 0.75rem 1.25rem !important;
        font-size: 0.9rem !important;
    }
    
    .mobile-nav hr {
        margin: 0.5rem 1rem !important;
    }
}

/* ========== 触摸设备优化 ========== */
@media (hover: none) and (pointer: coarse) {
    .mobile-nav .nav-link {
        min-height: 52px;
    }
    
    .mobile-nav .btn {
        min-height: 52px;
    }
    
    .mobile-nav .nav-link:active {
        background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%) !important;
    }
}

/* ========== 动画效果 ========== */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.offcanvas.show .mobile-nav .nav-link {
    animation: slideInLeft 0.3s ease-out backwards;
}

.offcanvas.show .mobile-nav .nav-link:nth-child(1) { animation-delay: 0.05s; }
.offcanvas.show .mobile-nav .nav-link:nth-child(2) { animation-delay: 0.1s; }
.offcanvas.show .mobile-nav .nav-link:nth-child(3) { animation-delay: 0.15s; }
.offcanvas.show .mobile-nav .nav-link:nth-child(4) { animation-delay: 0.2s; }
.offcanvas.show .mobile-nav .nav-link:nth-child(5) { animation-delay: 0.25s; }
.offcanvas.show .mobile-nav .nav-link:nth-child(6) { animation-delay: 0.3s; }
.offcanvas.show .mobile-nav .nav-link:nth-child(7) { animation-delay: 0.35s; }

.offcanvas.show .mobile-nav .btn {
    animation: slideInLeft 0.3s ease-out 0.4s backwards;
}

/* ========== 背景遮罩美化 ========== */
.offcanvas-backdrop {
    background-color: rgba(26, 26, 46, 0.6);
    backdrop-filter: blur(4px);
}

/* ========== 防止内容溢出 ========== */
.mobile-nav .nav-link,
.mobile-nav .btn {
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ========== 确保层级正确 ========== */
.offcanvas {
    z-index: 1050 !important;
}

.offcanvas-backdrop {
    z-index: 1049 !important;
}