/*...........Start header...............*/
/* Header 1 hàng: logo + wordmark bên trái, menu bên phải. */
/* Đầu trang trong suốt đè lên hero; scroll xuống → trắng; qua hero → ẩn. */

/* Navbar */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: transparent;
    z-index: 1000;
    transition: background-color 0.4s ease, border-color 0.4s ease, transform 0.4s ease;
}

/* Ẩn header khi đã cuộn qua khỏi hình hero */
.main-nav.nav-hidden {
    transform: translateY(-100%);
}

/* Brand: logo + chữ */
.main-nav .logo img {
    width: 100px;
    height: 100px;
    object-fit: contain;
    transition: all 0.3s ease;
}
.main-nav .brand-name {
    font-family: 'arkipelagoregular', 'Oswald', sans-serif;
    color: var(--text-dark);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    line-height: 1;
    white-space: nowrap;
}

.main-nav .nav-link {
    color: var(--text-dark) !important;
    letter-spacing: 1px;
    padding: unset;
}
.main-nav .nav-link:hover {
    color: var(--text-primary) !important;
}
.main-nav .nav-link.active {
    color: var(--text-primary) !important;
    font-weight: 600;
    position: relative;
}

.main-nav .nav-link.active::after {
    content: "";
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: #79A342;
    border-radius: 2px;
}

/* Khi scroll xuống → giữ underline xanh trên nền trắng */
.main-nav .nav-link.active.active-underline-scrolled::after {
    background-color: #79A342 !important;
}

/* When scrolled → header solid white (giống Chagee) */
.main-nav.scrolled {
    background: #fff;
    border-bottom: 1px solid #eee;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}
/* Chữ tối trên nền trắng */
.main-nav.scrolled .nav-link {
    color: var(--text-dark) !important;
    text-shadow: none;
}
.main-nav.scrolled .nav-link:hover {
    color: var(--text-primary) !important;
}
.main-nav.scrolled .nav-link.active {
    color: var(--text-primary) !important;
}

/* --- Start Mobile Menu Styling --- */
.navbar-toggler {
    border: none;
    background: var(--bg-soft-gradient);
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='%23ffffff' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Menu hiển thị trên mobile */
@media (max-width: 992px) {
    /* Brand bên trái, toggler bên phải */
    .main-nav .container {
        min-height: 64px;
    }
    .main-nav .logo img {
        width: 100px;
        height: 100px;
    }
    .main-nav .brand-name {
        font-size: 1.25rem;
    }
    .navbar-toggler {
        position: relative;
        z-index: 2;
    }

    #mobileMenu {
        background: var(--bg-soft-gradient);
    }

    .main-nav .nav-link {
        color: var(--text-light) !important;
        margin: 10px 0;
        transition: color 0.3s ease;
        padding: unset;
    }

    #mobileMenu .nav-link:hover {
        color: #d4a373 !important;
    }

    .main-nav .nav-link.active {
        color: var(--text-light) !important;
        font-weight: 600;
        position: relative;
    }
    .main-nav .nav-link.active::after {
        background-color: var(--text-light) !important;
    }

    #mobileMenu .nav-link.active::after {
        content: "";
        position: absolute;
        bottom: -5px;
        left: 0;
        right: 0;
        height: 2px;
        background-color: #79A342;
        border-radius: 2px;
    }
}

/* --- End Mobile Menu Styling --- */