/* Modern Header Styles - Light Theme */
.topbar .header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(254, 254, 254, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(45, 74, 34, 0.1);
    z-index: 1000;
    transition: var(--transition);
    /* padding: 1rem 0; */
    box-shadow: 0 2px 20px rgba(45, 74, 34, 0.08);
}

.topbar .header.scrolled {
    background: rgba(254, 254, 254, 0.98);
    padding: 0.5rem 0;
    box-shadow: 0 4px 30px rgba(45, 74, 34, 0.12);
    border-bottom: 1px solid rgba(45, 74, 34, 0.15);
}

.topbar .header-content {
    display: flex;
    flex-direction: column; /* 垂直排列 logo 和 menu */
    align-items: center; /* 置中 */
    justify-content: center;
    /* gap: 1rem;
    padding: 1rem 0; */
}

.topbar .logo-container {
    text-align: center;
}

.topbar .logo {
    margin: 0;
    font-size: 0;
}

.topbar .logo a {
    display: block;
    transition: var(--transition);
    filter: brightness(1);
}

.topbar .logo a:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.topbar .logo img {
    height: 80px; /* 放大 logo */
    transition: var(--transition);
    /*filter: brightness(0.2) sepia(1) hue-rotate(100deg) saturate(3);*/ /* 轉為綠色 */
}

.topbar .header.scrolled .logo img {
    height: 45px;
}

.topbar .menu-container {
    display: flex;
    justify-content: center; /* menu 置中 */
    width: 100%;
}

.topbar .hd_right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

/* Navigation Styles */
.topbar nav {
    display: flex;
    align-items: center;
}

.topbar nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 2rem; /* menu 項目之間的間距 */
}

.topbar nav ul li {
    position: relative;
}

.topbar nav ul li a {
    color: var(--primary-green);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem; /* 調整字體大小 */
    padding: 0.8rem 1.2rem;
    border-radius: 50px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.02em;
}

.topbar nav ul li a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(127, 176, 105, 0.2), transparent);
    transition: left 0.5s ease;
}

.topbar nav ul li a:hover::before {
    left: 100%;
}

.topbar nav ul li a:hover {
    background: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(45, 74, 34, 0.25);
}

.topbar nav ul li a.active {
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
    color: var(--white);
    box-shadow: 0 5px 15px rgba(45, 74, 34, 0.3);
}

/* Mobile Menu Button */
.topbar .hamburger-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-green);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: var(--transition);
}

.topbar .hamburger-btn:hover {
    background: var(--primary-green);
    color: var(--white);
    transform: scale(1.1) rotate(180deg);
}

/* Cart Icon Styles */
.topbar .cart-icon {
    font-size: 1.2rem;
    position: relative;
}

.topbar .cart-count {
    position: absolute;
    top: -8px;
    right: -12px;
    background-color: var(--red-500, #ef4444);
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .topbar .header-content {
        padding: 0 1rem;
    }
    
    .topbar .hamburger-btn {
        display: block;
    }
    
    .topbar nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(254, 254, 254, 0.98);
        backdrop-filter: blur(20px);
        border-top: 1px solid rgba(45, 74, 34, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 1000;
        box-shadow: 0 10px 30px rgba(45, 74, 34, 0.1);
    }
    
    .topbar nav.show-menu {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .topbar nav ul {
        flex-direction: column;
        padding: 1rem 0;
        gap: 0;
    }
    
    .topbar nav ul li {
        width: 100%;
        border-bottom: 1px solid rgba(45, 74, 34, 0.08);
    }
    
    .topbar nav ul li:last-child {
        border-bottom: none;
    }
    
    .topbar nav ul li a {
        display: block;
        padding: 1rem 2rem;
        border-radius: 0;
        color: var(--primary-green);
        font-weight: 500;
        opacity: 0;
        transform: translateX(-20px);
        animation: slideInMenu 0.3s ease forwards;
    }
    
    .topbar nav ul li:nth-child(1) a { animation-delay: 0.1s; }
    .topbar nav ul li:nth-child(2) a { animation-delay: 0.2s; }
    .topbar nav ul li:nth-child(3) a { animation-delay: 0.3s; }
    .topbar nav ul li:nth-child(4) a { animation-delay: 0.4s; }
    .topbar nav ul li:nth-child(5) a { animation-delay: 0.5s; }
    
    .topbar nav ul li a:hover {
        background: var(--cream);
        transform: translateX(0);
        box-shadow: none;
    }
}

@keyframes slideInMenu {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}