/* Header e Navigation - Bootstrap 5 Responsive */
header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: var(--color-white);
}

/* Navbar principale */
.navbar {
    padding: 0.75rem 0;
    box-shadow: 0 2px 8px var(--shadow-light);
    transition: all 0.3s ease;
}

/* Brand */
.navbar-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-black);
    letter-spacing: 0.5px;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
}

.navbar-brand:hover {
    text-decoration: underline;
}

.brand-text {
    display: inline-block;
}

/* Container fluido con max-width */
.navbar .container-fluid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Nav items */
.navbar-nav {
    align-items: center;
    gap: 0.5rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--text-dark) !important;
    font-family: var(--font-primary);
    font-weight: var(--font-weight-medium);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.75rem 1rem !important;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0.5rem;
    left: 1rem;
    right: 1rem;
    height: 2px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-link:hover::after,
.nav-link:focus::after {
    transform: scaleX(1);
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-primary) !important;
}

/* Dropdown toggle */
.nav-link.dropdown-toggle::after {
    margin-left: 0.4em;
    vertical-align: 0.15em;
    transition: transform 0.3s ease;
}

.dropdown.show .nav-link.dropdown-toggle::after {
    transform: rotate(180deg);
}

/* Dropdown menu - Desktop */
.dropdown-menu {
    background: var(--color-white);
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 8px 25px var(--shadow-medium);
    margin-top: 0.5rem;
    padding: 0.5rem 0;
    min-width: 240px;
    animation: slideDown 0.15s ease;
    transition: opacity 0.15s ease, transform 0.15s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-item {
    color: var(--text-dark);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: var(--font-weight-normal);
    padding: 0.65rem 1.5rem;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.dropdown-item:hover,
.dropdown-item:focus {
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    padding-left: 1.75rem;
}

.dropdown-item.active, .dropdown-item:active {
    color: var(--color-white);
    background-color: var(--color-primary);
}


/* Hover dropdown su desktop */
@media (min-width: 992px) {
    /* Rimuovo il comportamento automatico di hover per gestirlo tramite JS */
    .dropdown-menu {
        margin-top: 0;
        display: none;
    }

    .dropdown.show .dropdown-menu {
        display: block;
    }

    /* Cursor pointer per indicare che il link è cliccabile */
    .nav-link.dropdown-toggle {
        cursor: pointer;
    }

    /* Indicatore visivo che il link è cliccabile anche con dropdown */
    .dropdown > .nav-link.dropdown-toggle:hover {
        text-decoration: none;
    }
}

/* Hamburger button */
.navbar-toggler {
    border: 2px solid var(--color-primary);
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    transition: all 0.3s ease;
}

.navbar-toggler:hover {
    background: var(--color-primary-lightest);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.25rem var(--color-primary-lightest);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231e3a5f' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    width: 1.5rem;
    height: 1.5rem;
}

/* Mobile styles */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background: var(--color-white);
        margin-top: 1rem;
        padding: 1rem;
        border-radius: 0.5rem;
        box-shadow: 0 4px 15px var(--shadow-light);
    }

    .navbar-nav {
        gap: 0;
    }

    .nav-item {
        width: 100%;
        border-bottom: 1px solid var(--color-light-gray);
    }

    .nav-item:last-child {
        border-bottom: none;
    }

    .nav-link {
        padding: 1rem !important;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .nav-link::after {
        display: none;
    }

    /* Icone per dropdown mobile */
    .dropdown-icon {
        font-size: 1.25rem;
        transition: transform 0.3s ease;
        padding: 0.5rem;
        margin-right: -0.5rem;
        cursor: pointer;
        color: var(--color-primary);
    }

    .dropdown.show .dropdown-icon {
        transform: rotate(90deg);
    }

    /* Area cliccabile per l'icona */
    .nav-link.dropdown-toggle {
        position: relative;
    }

    /* Dropdown mobile */
    .dropdown-menu {
        background: var(--color-light);
        box-shadow: none;
        border-radius: 0;
        margin: 0;
        padding: 0;
        border-left: 3px solid var(--color-primary);
        margin-left: 1rem;
        animation: none;
    }

    .dropdown-item {
        padding: 0.75rem 1rem;
        font-size: 0.85rem;
        border-left: none;
    }

    .dropdown-item:hover {
        padding-left: 1.25rem;
        background: var(--color-white);
    }
}

/* Tablet adjustments */
@media (max-width: 1199.98px) and (min-width: 992px) {
    .navbar-brand {
        font-size: 1.25rem;
    }

    .nav-link {
        font-size: 0.85rem;
        padding: 0.75rem 0.75rem !important;
    }

    .dropdown-menu {
        min-width: 200px;
    }
}

/* Small mobile */
@media (max-width: 575.98px) {
    .navbar-brand {
        font-size: 1.1rem;
    }

    .brand-text {
        display: block;
        line-height: 1.3;
    }

    .navbar .container-fluid {
        padding: 0 0.75rem;
    }
}

/* Active state */
.nav-item.active .nav-link,
.nav-link.active {
    color: var(--color-primary) !important;
    font-weight: var(--font-weight-bold);
}

.nav-item.active .nav-link::after {
    transform: scaleX(1);
}

/* Smooth scroll when menu is open */
.navbar-collapse.collapsing {
    transition: height 0.35s ease;
}

.navbar-collapse.show {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}