/**
 * navigation.css - Style dla pływającego menu nawigacyjnego
 * Zawiera responsywne menu z efektem blur i hamburger menu dla mobile
 */

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    z-index: var(--z-header);
    transition: all var(--transition-normal);
}

/* Efekt przy scrollowaniu - większy cień */
.header.scrolled {
    box-shadow: var(--shadow-md);
}

/* ===== NAWIGACJA ===== */
.nav {
    width: 100%;
}

.nav__container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ===== LOGO ===== */
.nav__logo {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-dark);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav__logo:hover {
    color: var(--color-primary);
}

.nav__logo-accent {
    color: var(--color-primary);
}

/* ===== MENU NAWIGACYJNE ===== */
.nav__menu {
    display: flex;
    align-items: center;
}

.nav__list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav__link {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
    position: relative;
}

.nav__link:hover {
    color: var(--color-primary);
}

/* Podkreślenie aktywnego linku */
.nav__link.active {
    color: var(--color-primary);
}

.nav__link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 2px;
}

/* ===== HAMBURGER MENU (Mobile) ===== */
.nav__toggle,
.nav__close {
    display: none;
}

/* ===== MEDIA QUERIES - TABLET ===== */
@media screen and (max-width: 1024px) {
    .nav__list {
        gap: var(--spacing-md);
    }
    
    .nav__link {
        font-size: var(--font-size-small);
    }
}

/* ===== MEDIA QUERIES - MOBILE ===== */
@media screen and (max-width: 768px) {
    /* Hamburger toggle button */
    .nav__toggle {
        display: flex;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        z-index: calc(var(--z-header) + 1);
    }
    
    .nav__toggle span {
        width: 28px;
        height: 3px;
        background-color: var(--color-dark);
        border-radius: 2px;
        transition: all var(--transition-normal);
    }
    
    /* Ukryj hamburger gdy menu jest otwarte (pokazujemy tylko .nav__close w menu) */
    .nav__toggle.active {
        display: none;
    }
    
    /* Menu mobilne */
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: white;
        box-shadow: var(--shadow-xl);
        padding: var(--spacing-xxl) var(--spacing-lg);
        transition: right var(--transition-normal);
        overflow-y: auto;
    }
    
    .nav__menu.active {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .nav__link {
        font-size: var(--font-size-large);
        width: 100%;
        padding: var(--spacing-sm) 0;
        border-bottom: 1px solid var(--color-bg-light);
    }
    
    .nav__link.active::after {
        left: 0;
        transform: none;
    }
    
    /* Przycisk zamknięcia */
    .nav__close {
        display: block;
        position: absolute;
        top: var(--spacing-md);
        right: var(--spacing-md);
        font-size: 2.5rem;
        color: var(--color-dark);
        cursor: pointer;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: color var(--transition-fast);
    }
    
    .nav__close:hover {
        color: var(--color-primary);
    }
    
    /* Overlay dla zamknięcia menu */
    body.menu-open::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: calc(var(--z-header) - 1);
    }
    
    /* Blokowanie scrollowania gdy menu otwarte */
    body.menu-open {
        overflow: hidden;
    }
}