/* ================================ HEADER MODERNO – ISOLADO ================================ */
#header {
    min-height: 70px;
    height: auto;
    background: rgba(15, 15, 25, 0.55);
    /* MAIS TRANSPARENTE */
    backdrop-filter: blur(14px);
    /* blur um pouco maior */
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
    z-index: 999;
}

/* fallback */
@supports not (backdrop-filter: blur(10px)) {
    #header {
        background: rgba(15, 15, 25, 0.95);
    }
}

/* Container */
#header .container {
    min-height: 70px;
    display: flex;
    align-items: center;
}

/* LOGO */
#header .logo img {
    max-height: 46px;
    transition: transform 0.3s ease;
}

#header .logo img:hover {
    transform: scale(1.05);
}

/* DESKTOP DEFAULT */
#header .mobile-nav-toggle {
    display: none;
}

/* ================================ NAVBAR DESKTOP ================================ */
#header .navbar {
    overflow: visible;
}

#header .navbar ul {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
    overflow: visible;
}

#header .navbar li {
    position: relative;
}

#header .navbar a {
    position: relative;
    font-size: 15px;
    font-weight: 500;
    color: #eaeaf0;
    padding: 8px 0;
    letter-spacing: 0.4px;
    transition: color 0.25s ease;
}

/* underline moderno */
#header .navbar a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, #6cf, #9f6cff);
    border-radius: 2px;
    transition: width 0.25s ease;
}

#header .navbar a:hover::after,
#header .navbar .active::after {
    width: 100%;
}

#header .navbar a:hover,
#header .navbar .active {
    color: #ffffff;
}

/* ================================ MOBILE ================================ */
#header .mobile-nav-toggle {
    font-size: 26px;
    color: #ffffff;
    cursor: pointer;
}

@media (max-width: 991px) {
    #header {
        min-height: 64px;
    }

    /* ESCONDE MENU DESKTOP */
    #header .navbar ul {
        display: none;
    }

    /* MOSTRA HAMBÚRGUER */
    #header .mobile-nav-toggle {
        display: block;
    }

    /* overlay */
    #header .navbar-mobile {
        position: fixed;
        inset: 0;
        background: rgba(15, 15, 25, 0.92);
        backdrop-filter: blur(10px);
        z-index: 998;
    }

    /* menu mobile */
    #header .navbar-mobile {
        position: fixed;
        inset: 0;
        background: rgba(15, 15, 25, 0.92);
        backdrop-filter: blur(10px);
        z-index: 998;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    #header .navbar-mobile ul {
        display: flex;
        flex-direction: column;
        gap: 24px;
        list-style: none;
        padding: 28px 32px;
        margin: 0;
        background: rgba(25, 25, 40, 0.75);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border-radius: 20px;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
        overflow: visible;
    }

    #header .navbar-mobile a {
        font-size: 18px;
        font-weight: 500;
        padding: 10px 0;
        text-align: center;
    }

    #header .navbar-mobile a::after {
        display: none;
    }
}

/* ================================
   BOTÃO X NO MOBILE (MENU ABERTO)
   ================================ */

@media (max-width: 991px) {

  /* botão hambúrguer / X */
  #header .mobile-nav-toggle {
    position: fixed;
    top: 18px;
    right: 20px;
    z-index: 1001;
  }

  /* quando menu estiver aberto */
  #header .navbar-mobile + .mobile-nav-toggle,
  #header .mobile-nav-toggle.bi-x {
    position: fixed;
    top: 18px;
    right: 20px;
    z-index: 1001;
  }
}