/* ==========================================================================
   2. ШАПКА САЙТА С ДВУМЯ КАРТИНКАМИ (HEADER)
   ========================================================================== */
.site-header {
    height: 85px; 
    border-bottom: 3px solid #800000;
    padding: 0 20px;
    background-image: url('img/header_sm.jpg'), url('img/header_fn.jpg');
    background-repeat: no-repeat, repeat-x;
    background-position: left top, left top;
    background-color: #535353; 
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: 1140px;
    margin: 0 auto;
    position: relative;
}
.site-branding {
    width: 320px;
    height: 85px;
    flex-shrink: 0;
}
.site-branding .site-logo-text {
    font-size: 32px;
    font-weight: 900;
    color: #800000;
    padding: 2px 10px;
    margin-left: 20px;
    text-shadow: -2px -2px 0 #fff, 2px -2px 0 #fff, -2px 2px 0 #fff, 2px 2px 0 #fff, 0px 0px 8px rgba(255,255,255,1);
}

/* Горизонтальная ПК-навигация */
.top-navigation ul {
    display: flex;
    list-style: none;
    gap: 20px;
    align-items: center;
}
.top-navigation .nav-link {
    font-weight: 600;
    font-size: 16px;
    color: #333;
    padding: 5px 10px;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8); 
}
.top-navigation .nav-link:hover, 
.top-navigation .nav-link.active {
    color: #b71c1c;
}
.top-navigation .highlight-btn {
    background: #800000;
    color: #ffffff !important;
    padding: 8px 16px;
    border-radius: 4px;
    text-shadow: none !important;
}
/* ==========================================================================
   3. МОБИЛЬНАЯ КНОПКА-ГАМБУРГЕР
   ========================================================================== */
.menu-toggle {
    display: none;
    background: #800000;
    border: none;
    padding: 12px;
    cursor: pointer;
    z-index: 1001;
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}
.hamburger {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    position: relative;
}
.hamburger::before, .hamburger::after {
    content: '';
    width: 22px;
    height: 2px;
    background: #fff;
    position: absolute;
    left: 0;
    transition: transform 0.2s ease, top 0.2s ease;
}
.hamburger::before { top: -6px; }
.hamburger::after { top: 6px; }

.menu-toggle.active .hamburger { background: transparent; }
.menu-toggle.active .hamburger::before { top: 0; transform: rotate(45deg); }
.menu-toggle.active .hamburger::after { top: 0; transform: rotate(-45deg); }