.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(215, 0, 31, 0.15);
    z-index: 10000;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    font-family: 'Roboto', sans-serif;
}

.dark-mode .navbar {
    background-color: #1c1c1c;
    box-shadow: 0 2px 8px rgba(255, 74, 90, 0.5);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.navbar-brand {
    font-weight: 900;
    font-size: 1.5rem;
    color: #d7001f;
    text-decoration: none;
    user-select: none;
    font-weight: bolder;
}

.dark-mode .navbar-brand {
    color: #ff4a5a;
}

.navbar-menu {
    list-style: none;
    display: flex;
    gap: 2rem;
    margin: 0;
    padding: 0;
    align-items: center;
    z-index: 1030;
}

.navbar-menu li {
    position: relative;
    display: flex;
    align-items: center;
}

.navbar-menu a {
    color: #222;
    font-weight: 600;
    text-decoration: none;
    font-size: 1rem;
    padding: 8px 0;
    transition: color 0.3s ease;
    user-select: none;
}

.navbar-menu a:hover,
.navbar-menu a:focus {
    color: #d7001f;
    outline: none;
}

.dark-mode .navbar-menu a {
    color: #ddd;
}

.dark-mode .navbar-menu a:hover,
.dark-mode .navbar-menu a:focus {
    color: #ff4a5a;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    width: 28px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    position: relative;
    z-index: 11000;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    content: "";
    display: block;
    height: 3px;
    width: 100%;
    background-color: #d7001f;
    border-radius: 2px;
    transition: all 0.3s ease;
    position: relative;
}

.dark-mode .hamburger,
.dark-mode .hamburger::before,
.dark-mode .hamburger::after {
    background-color: #ff4a5a;
}

.hamburger::before,
.hamburger::after {
    position: absolute;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

.nav-toggle.nav-toggle-active .hamburger {
    background-color: transparent;
}

.nav-toggle.nav-toggle-active .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.nav-toggle.nav-toggle-active .hamburger::after {
    transform: rotate(-45deg);
    top: 0;
}

.nav-dropdown {
    position: relative;
    cursor: pointer;
    user-select: none;
}

.nav-dropdown > a {
    display: inline-flex;
    align-items: center;
    padding: 0.5em 1em;
    user-select: none;
    text-decoration: none;
    color: inherit;
}

.nav-dropdown > a::after {
    content: "▼";
    font-size: 0.6rem;
    margin-left: 6px;
    user-select: none;
    transition: transform 0.3s ease;
}

.dropdown-menu {
    display: none;
    position: absolute;
    background: white;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    list-style: none;
    margin: 0;
    padding: 0.5em 0;
    min-width: 140px;
    right: 0;
    top: 50px;
    z-index: 1000;
    border-radius: 6px;
    transition: opacity 0.3s ease, transform 0.3s ease;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu,
.dropdown-menu:hover {
    display: block;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.dropdown-menu li a {
    display: block;
    padding: 0.5em 1em;
    text-decoration: none;
    color: #333;
    font-weight: 600;
    transition: background-color 0.3s ease;
    border-radius: 4px;
}

.dropdown-menu li a:hover {
    background-color: #eee;
}

.dark-mode .nav-dropdown > a {
    color: #ddd;
}

.dark-mode .nav-dropdown > a:hover,
.dark-mode .nav-dropdown > a:focus {
    color: #ff4a5a;
    background-color: rgba(255, 74, 90, 0.15);
}

.dark-mode .dropdown-menu {
    background: #222;
    box-shadow: 0 4px 12px rgba(255, 74, 90, 0.4);
}

.dark-mode .dropdown-menu li a {
    color: #ddd;
}

.dark-mode .dropdown-menu li a:hover,
.dark-mode .dropdown-menu li a:focus {
    background-color: rgba(255, 74, 90, 0.2);
    color: #ff4a5a;
}

@media (max-width: 768px) {
    .navbar-menu {
        position: fixed;
        top: 60px;
        right: 0;
        background-color: #fff;
        width: 300px;
        height: calc(100% - 60px);
        flex-direction: column;
        padding: 2rem 1.5rem;
        box-shadow: -4px 0 12px rgba(215, 0, 31, 0.2);
        transform: translateX(100%);
        transition: transform 0.3s ease;
        z-index: 9999;
        overflow-y: auto;
        align-items: flex-start;
        text-align: left;
    }

    .dark-mode .navbar-menu {
        background-color: #1c1c1c;
        box-shadow: -4px 0 12px rgba(255, 74, 90, 0.3);
    }

    .navbar-menu.navbar-menu-active {
        transform: translateX(0);
    }

    .navbar-menu li {
        margin-bottom: 1.5rem;
    }

    .navbar-menu a {
        font-size: 1.25rem;
        color: #d7001f;
    }

    .dark-mode .navbar-menu a {
        color: #ff4a5a;
    }

    .nav-toggle {
        display: flex;
    }
}