/*
 * 友粮官网 - 导航栏样式
 */

/* 导航栏初始状态 */
.navbar {
    position: fixed;
    width: 100%;
    z-index: 50;
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.nav-text-initial {
    color: var(--brand-green);
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

/* 导航栏滚动后状态 */
.nav-scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
    box-shadow: var(--shadow-md);
    color: var(--brand-brown);
    padding: 0.5rem 0;
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo */
.navbar-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-logo:hover .logo-icon {
    transform: scale(1.1);
}

.logo-icon {
    font-size: 1.875rem;
    color: var(--brand-gold);
    transition: transform 0.3s ease;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text-main {
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 0.05em;
    color: var(--brand-green);
    transition: color 0.3s ease;
}

.navbar-logo:hover .logo-text-main {
    color: var(--brand-gold);
}

.logo-text-sub {
    font-size: 0.75rem;
    color: var(--brand-brown);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.8;
}

/* 桌面端菜单 */
.navbar-menu {
    display: none;
    align-items: center;
    gap: 2rem;
}

@media (min-width: 768px) {
    .navbar-menu {
        display: flex;
    }
}

.navbar-menu a {
    font-weight: bold;
    transition: color 0.3s ease;
}

.navbar-menu a:hover {
    color: var(--brand-gold);
}

.navbar-menu .btn-contact {
    padding: 0.5rem 1.25rem;
    background-color: var(--brand-gold);
    color: white;
    border-radius: 9999px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-menu .btn-contact:hover {
    background-color: var(--brand-green);
    color: white;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: block;
    font-size: 1.5rem;
    color: var(--brand-green);
    background: none;
    border: none;
    cursor: pointer;
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

/* 移动端菜单下拉 */
.mobile-menu {
    display: none;
    position: absolute;
    width: 100%;
    top: 100%;
    left: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
    padding: 1rem 0;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--brand-light-gold);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu a {
    display: block;
    padding: 0.5rem 1.5rem;
    color: var(--brand-brown);
}

.mobile-menu a:hover {
    background-color: var(--brand-warm);
    color: var(--brand-gold);
}

@media (min-width: 768px) {
    .mobile-menu {
        display: none !important;
    }
}