/* Efekt rozmytego szkła charakterystyczny dla nawigacji Apple */
.site-header {
    background-color: rgba(255, 255, 255, 0.72);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    position: sticky;
    top: 0;
    z-index: 9999;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
    width: 100%;
    position: relative;
}

.logo .logo-text {
    font-size: 21px;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: -0.01em;
    white-space: nowrap;
}

/* Wygląd ikony hamburgera - domyślnie ukryta na desktopie */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 10000; /* Zawsze nad menu */
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #333;
    margin-bottom: 5px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle span:last-child {
    margin-bottom: 0;
}

/* Animacja w krzyżyk, gdy ma klasę is-active */
.mobile-menu-toggle.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.is-active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 32px;
    align-items: center;
    margin: 0;
    padding: 0;
}

.main-nav a {
    font-size: 14px;
    font-weight: 400;
    color: rgba(0, 0, 0, 0.8);
    letter-spacing: -0.01em;
    transition: color 0.2s ease;
    text-decoration: none;
    white-space: nowrap;
}

.main-nav a:hover {
    color: var(--primary-color);
}

/* --- Rozwijane menu (Dropdown) w stylu Apple --- */
.has-dropdown {
    position: relative;
    padding: 10px 0; 
}

.dropdown-arrow {
    font-size: 10px;
    margin-left: 4px;
    opacity: 0.5;
    display: inline-block;
    transition: transform 0.3s ease;
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: rgba(255, 255, 255, 0.85);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 14px;
    padding: 8px 0;
    min-width: 220px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    
    display: flex;
    flex-direction: column;
    gap: 0;
}

.has-dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.has-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown li {
    width: 100%;
}

.dropdown a {
    display: block;
    padding: 10px 20px;
    font-size: 14px;
    color: var(--text-color);
    white-space: nowrap;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.dropdown a:hover {
    background-color: rgba(0, 0, 0, 0.04);
    color: var(--primary-color);
}

/* Responsywność Header - na mobile (Hamburger) */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: rgba(255, 255, 255, 0.95);
        -webkit-backdrop-filter: saturate(180%) blur(20px);
        backdrop-filter: saturate(180%) blur(20px);
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        
        /* Menu ukryte na start, lekko uniesione */
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.3s ease;
    }

    .main-nav.is-open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .main-nav ul {
        flex-direction: column;
        gap: 0;
        padding: 10px 0 20px 0;
    }

    .main-nav li {
        width: 100%;
        text-align: center;
    }

    .main-nav a {
        display: block;
        padding: 15px 20px;
        font-size: 16px;
    }

    .has-dropdown {
        padding: 0;
    }

    /* Wyzerowanie pozycji dla dropdownów na mobile */
    .has-dropdown:hover .dropdown {
        position: relative;
        transform: none;
        left: 0;
        top: 0;
        box-shadow: none;
        background: rgba(0, 0, 0, 0.03);
        border: none;
        border-radius: 8px;
        padding: 10px 0;
        margin: 0 20px;
        align-items: center;
    }

    .dropdown a {
        padding: 10px 15px;
    }
}