:root {
    --color-verde-chiaro: #D0EFB1;
    --color-verde: #B3D89C;
    --color-acqua: #9DC3C2;
    --color-azzurro: #77A6B6;
    --color-blu: #4D7298;
    --color-bianco: #FFFFFF;
    --color-grigio-chiaro: #F2F2F2;
    --color-grigio-medio: #E0E0E0;
    --color-grigio-scuro: #707070;
    --color-nero: #333333;
    --navbar-height: 120px;
    --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

#navbar {
    width: 100%;
    height: var(--navbar-height);
    background-color: var(--color-bianco);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: box-shadow 0.3s ease;
    font-family: 'Montserrat', sans-serif;
}

#navbar.scrolled {
    box-shadow: var(--shadow-light);
    border-bottom: 1px solid var(--color-grigio-medio);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
    width: 90%;
    position: relative;
}

.navbar-container::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-grigio-chiaro);
    opacity: 0.8;
}

.navbar-left {
    display: flex;
    align-items: center;
    height: 100%;
}

.navbar-logo {
    display: flex;
    align-items: center;
    height: 100%;
    padding: 10px 0;
    flex-direction: row;
}

.navbar-logo img {
    height: 80px;
    width: auto;
    object-fit: contain;
    margin-right: 10px;
    border-radius: 0;
    transition: none;
    box-shadow: none;
    background-color: transparent;
}

.navbar-logo img:last-child {
    margin-right: 0;
}

.navbar-menu {
    display: flex;
    height: 100%;
    align-items: center;
}

.navbar-right {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 15px;
}

.nav-item {
    display: flex;
    align-items: center;
    height: 40px;
    padding: 0 15px;
    color: var(--color-nero);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.3px;
    position: relative;
    transition: all 0.2s ease;
    border-radius: 8px;
}

.nav-item:hover {
    background-color: var(--color-grigio-chiaro);
    color: var(--color-blu);
}

.nav-item.active {
    color: var(--color-blu);
    font-weight: 600;
}

.auth-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-left: 20px;
    gap: 6px;
}

.btn {
    padding: 10px 22px;
    border-radius: 24px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    letter-spacing: 0.5px;
}

.btn-login {
    background-color: var(--color-blu);
    color: var(--color-bianco);
    border: none;
}

.btn-login:hover {
    background-color: #3c5a78;
    transform: translateY(-2px);
}

.nav-signup {
    display: block;
    text-align: center;
    width: 100%;
    color: var(--color-nero);
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    opacity: 0.85;
}

.nav-signup:hover {
    opacity: 1;
    text-decoration: underline;
}

.nav-username {
    font-weight: 700;
    font-size: 16px;
    color: var(--color-azzurro);
    margin-bottom: 6px;
}

.btn-logout {
    padding: 10px 22px;
    border-radius: 24px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    letter-spacing: 0.5px;
    background-color: var(--color-blu);
    color: var(--color-bianco);
    border: none;
}

.btn-logout:hover {
    background-color: #8AB3B1;
    transform: translateY(-1px);
}

.linkProfilo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    padding: 6px 10px;
    border-radius: 8px;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.linkProfilo .nav-username {
    font-weight: 600;
    font-size: 16px;
    color: var(--color-blu);
    letter-spacing: 0.2px;
}

.linkProfilo:hover {
    background-color: var(--color-grigio-chiaro);
}

.linkProfilo:hover .nav-username {
    color: var(--color-azzurro);
}

.linkProfilo:active {
    background-color: var(--color-grigio-medio);
}

.linkProfilo:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px rgba(77, 114, 152, 0.25);
}

/* ── HAMBURGER ── */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.2s ease;
    z-index: 1100;
    flex-shrink: 0;
}

.hamburger:hover {
    background-color: var(--color-grigio-chiaro);
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-nero);
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}

#navbar.menu-open .hamburger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
    background-color: var(--color-blu);
}

#navbar.menu-open .hamburger span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

#navbar.menu-open .hamburger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
    background-color: var(--color-blu);
}

/* ── MOBILE MENU ── */
.mobile-menu {
    display: none;
    position: fixed;
    left: 0;
    width: 100%;
    background-color: var(--color-bianco);
    z-index: 999;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    border-top: 1px solid var(--color-grigio-medio);
    opacity: 0;
    transform: translateY(-8px);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-menu.is-open {
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu-inner {
    padding: 8px 0 20px;
}

.mobile-nav-item {
    display: block;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-nero);
    text-decoration: none;
    border-bottom: 1px solid var(--color-grigio-chiaro);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.mobile-nav-item:hover {
    background-color: var(--color-grigio-chiaro);
    color: var(--color-blu);
}

.mobile-nav-item.active {
    color: var(--color-blu);
    font-weight: 600;
}

.mobile-auth {
    padding: 20px 24px 4px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-auth .btn-login,
.mobile-auth .btn-logout {
    font-size: 14px;
    padding: 9px 22px;
}

.mobile-auth .nav-signup {
    font-size: 13px;
    width: auto;
}

.mobile-auth .linkProfilo .nav-username {
    font-size: 15px;
    margin-bottom: 0;
}

/* ── TABLET ── */
@media screen and (max-width: 1024px) {
    :root {
        --navbar-height: 100px;
    }

    .navbar-logo img {
        height: 60px;
        margin-right: 8px;
    }

    .nav-item {
        padding: 0 12px;
        font-size: 13px;
    }

    .btn-login,
    .btn-logout {
        padding: 8px 18px;
        font-size: 14px;
    }
}

/* ── MOBILE ── */
@media screen and (max-width: 768px) {
    :root {
        --navbar-height: 70px;
    }

    .navbar-container {
        padding: 0 16px;
        width: 100%;
    }

    .navbar-logo {
        flex-direction: row;
        align-items: center;
        height: var(--navbar-height);
        padding: 8px 0;
        gap: 6px;
    }

    .navbar-logo img {
        height: 38px;
        margin-right: 0;
    }

    .navbar-right {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .mobile-menu {
        display: block;
        top: var(--navbar-height);
    }
}

/* ── VERY SMALL ── */
@media screen and (max-width: 400px) {
    :root {
        --navbar-height: 60px;
    }

    .navbar-logo img {
        height: 30px;
    }

    .mobile-nav-item {
        font-size: 15px;
        padding: 14px 20px;
    }
}

@media screen and (min-width: 769px) {
    .mobile-menu {
        display: none !important;
    }

    .hamburger {
        display: none !important;
    }
}

/* ── Fix: menu chiuso non intercetta i click ── */
.mobile-menu {
    pointer-events: none;
}

.mobile-menu.is-open {
    pointer-events: auto;
}