:root {
    --menu-primary: #DB2411; /* Sjednoceno na vaši červenou */
    --menu-text: #333;
    --menu-bg: #fff;
    --menu-dropdown-bg: #fff; 
    --menu-font: 'poppins', sans-serif; 
}

.custom-nav {
    background: var(--menu-bg);
    width: 100%;
    position: relative;
    font-family: var(--menu-font);
    z-index: 999999 !important;
}

/* Overlay s blurem */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

body.custom-menu-open .nav-overlay {
    opacity: 1;
    visibility: visible;
}

/* Kontejner hlavičky - při otevření lehce ztlumený */
.nav-container {
    position: relative;
    z-index: 20;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

body.custom-menu-open .nav-container {
    /* Pozadí odstraněno */
}

.nav-logo img {
    height: 80px;
    display: block;
    transition: opacity 0.3s;
}

body.custom-menu-open .nav-logo img {
    opacity: 0.8; /* Lehké ztlumení loga */
}

.nav-menu {
    list-style: none!important;
    display: flex;
    margin: 0;
    padding: 0;
    align-items: center;
    gap: 40px;
}

.nav-item {
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: var(--menu-text);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 16px;
    letter-spacing: 1px;
    padding: 20px 0;
    display: inline-flex;
    align-items: center;
    transition: color 0.3s;
}

/* SVG Šipka - přesná velikost a barva #DB2411 */
.has-dropdown > .nav-link::after {
    content: "";
    display: inline-block;
    width: 18px; /* Proporcionální k 16px textu */
    height: 18px;
    margin-left: 6px;
    background-color: #DB2411; 
    -webkit-mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none"><path d="M19.9201 8.9502L13.4001 15.4702C12.6301 16.2402 11.3701 16.2402 10.6001 15.4702L4.08008 8.9502" stroke="black" stroke-width="2" stroke-miterlimit="10" stroke-linecap="round" stroke-linejoin="round"/></svg>') no-repeat center;
    mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none"><path d="M19.9201 8.9502L13.4001 15.4702C12.6301 16.2402 11.3701 16.2402 10.6001 15.4702L4.08008 8.9502" stroke="black" stroke-width="2" stroke-miterlimit="10" stroke-linecap="round" stroke-linejoin="round"/></svg>') no-repeat center;
    mask-size: contain;
    -webkit-mask-size: contain;
    transition: transform 0.3s;
}

.has-dropdown.active > .nav-link::after {
    transform: rotate(180deg);
}

.nav-link:hover {
    color: var(--menu-primary);
}

/* Mega Menu Styles */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--menu-dropdown-bg);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 30px;
    width: max-content;
    max-width: 90vw;
    min-width: 200px;
    border-top: 3px solid var(--menu-primary);
    margin-top: 15px;
}

.nav-dropdown::before { display: none; } /* Odstraněna červená šipka */

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    margin-top: 0;
}

.mega-grid {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(180px, auto);
    gap: 30px;
}

.mega-column {
    border-right: 1px solid #eee;
    padding-right: 20px;
    min-width: 180px;
}

.mega-column:last-child { border-right: none; }

.mega-column h4 {
    color: var(--menu-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0 0 15px 0;
    font-size: 14px;
}

.mega-column h4::before { display: none; } /* Odstraněn polygon */

.mega-column ul {
    list-style: none!important;
    padding: 0!important;
    margin: 0;
}

.mega-column ul li a {
    text-decoration: none;
    color: #333;
    font-size: 15px;
    padding: 10px 0; /* Zvýšeno pro lepší rozestupy */
    display: flex; /* Nutné pro správné fungování vertikálního paddingu */
    align-items: center;
    transition: color 0.2s;
}

.mega-column ul li a:hover { color: var(--menu-primary); }

/* CTA Button */
.nav-button {
    background: var(--menu-primary);
    color: #fff !important;
    padding: 18px 35px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    transition: background 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border-radius: 2px;
}

/* Ikona telefonu - proporcionální velikost a bílá barva */
.phone-icon {
    width: 18px; 
    height: 18px;
    fill: #fff;
    flex-shrink: 0;
}

.nav-button:hover { background: #8e2218; }

.nav-cta-mobile { display: none; }

/* Animovaný Hamburger */
.nav-toggle {
    display: none;
    width: 30px;
    height: 22px;
    position: relative;
    cursor: pointer;
    transition: opacity 0.3s;
}

body.custom-menu-open .nav-toggle { opacity: 0.7; }

.nav-toggle span {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: var(--menu-text);
    border-radius: 3px;
    left: 0;
    transform: rotate(0deg);
    transition: .25s ease-in-out;
}

.nav-toggle span:nth-child(1) { top: 0px; }
.nav-toggle span:nth-child(2) { top: 9px; }
.nav-toggle span:nth-child(3) { top: 18px; }

.nav-toggle.active span:nth-child(1) { top: 9px; transform: rotate(135deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; left: -60px; }
.nav-toggle.active span:nth-child(3) { top: 9px; transform: rotate(-135deg); }

/* Responsive Styles */
@media (max-width: 1200px) {
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #fff;
        flex-direction: column;
        display: none;
        padding: 20px 0;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        gap: 0;
        z-index: 30;
        margin-top: 20px;
        border-radius: 3px;
    }
    
    .nav-menu.active { display: flex; }

    .nav-item {
        width: 100%;
        padding: 0 20px;
    }

    .nav-link {
        padding: 15px 0;
        width: 100%;
        justify-content: space-between;
    }

    .nav-dropdown {
        position: static;
        transform: none;
        width: 100%;
        max-width: 100%;
        display: none;
        opacity: 1;
        visibility: visible;
        padding: 10px 0 15px 15px; /* Upraven padding */
        box-shadow: none;
        border-top: none;
        border-left: 2px solid #eee;
        margin-top: 0;
    }

    .nav-item.active .nav-dropdown { display: block; }

    .mega-grid { display: block; }

    .mega-column {
        border-right: none;
        border-bottom: 1px solid #eee;
        padding-right: 0;
        padding-bottom: 10px;
        margin-bottom: 25px; /* Upraven margin */
    }

    .mega-column:last-child { border-bottom: none; margin-bottom: 0; }

    .nav-toggle { display: block; }
    .nav-cta { display: none; }

    .nav-cta-mobile {
        display: block;
        margin-top: 20px;
        text-align: center;
        padding-bottom: 20px;
    }
    
    .nav-cta-mobile .nav-button {
        display: inline-flex;
        padding: 15px 40px;
    }
}