/* ========================================
   Header & Navigation Styles
   ======================================== */

/* Header Container */
.site-header {
    background: var(--header-gradient);
    box-shadow: 0 2px 8px rgba(24, 1, 87, 0.3);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    transition: transform 0.3s ease-in-out;
}

.site-header.header-hidden {
    transform: translateY(-100%);
}

.header-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--header-height);
}

/* Logo */
.site-logo img {
    height: 52px;
    width: auto;
}

/* Desktop Navigation */
.desktop-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.desktop-nav > li {
    position: relative;
}

.desktop-nav > li > a {
    color: #ffffff;
    font-size: 14px;
    font-weight: 500;
    padding: 10px 16px;
    border-radius: 8px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.desktop-nav > li > a:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* Dropdown */
.desktop-nav .dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    min-width: 240px;
    padding: 12px 8px 8px 8px;
    display: none;
    z-index: 1000;
}

.desktop-nav li:hover .dropdown,
.desktop-nav .dropdown:hover {
    display: block;
}

.dropdown li {
    list-style: none;
}

.dropdown a {
    color: var(--grey-100);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 16px;
    border-radius: 8px;
    display: block;
    text-decoration: none;
    transition: all 0.2s ease;
}

.dropdown a:hover {
    background: var(--primary-10);
    color: var(--primary-70);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger {
    width: 24px;
    height: 20px;
    position: relative;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: #ffffff;
    position: absolute;
    left: 0;
    transition: all 0.3s ease;
}

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

.mobile-menu-btn.active .hamburger span:nth-child(1) {
    transform: rotate(45deg);
    top: 9px;
}

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

.mobile-menu-btn.active .hamburger span:nth-child(3) {
    transform: rotate(-45deg);
    top: 9px;
}

/* Mobile Navigation */
.mobile-nav {
    display: none;
    background: var(--primary-90);
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 9998;
}

.mobile-nav.active {
    display: block;
}

.mobile-nav ul {
    list-style: none;
}

.mobile-nav > ul > li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav > ul > li > a {
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-decoration: none;
    transition: background 0.2s ease;
}

.mobile-nav > ul > li > a:hover {
    background: rgba(255, 255, 255, 0.1);
}

.mobile-nav .dropdown-toggle {
    cursor: pointer;
}

.mobile-nav .dropdown-toggle .fa-chevron-down {
    transition: transform 0.3s ease;
    font-size: 12px;
}

.mobile-nav .dropdown-toggle.active .fa-chevron-down {
    transform: rotate(180deg);
}

.mobile-nav .dropdown {
    display: none;
    background: var(--primary-80);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.mobile-nav .dropdown.active {
    display: block;
    max-height: 1000px;
}

.mobile-nav .dropdown li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-nav .dropdown a {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-weight: 400;
    padding: 12px 24px 12px 44px;
    display: block;
    text-decoration: none;
    transition: all 0.2s ease;
}

.mobile-nav .dropdown a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    padding-left: 48px;
}

/* Mobile menu icons spacing */
.mobile-nav .fas:not(.fa-chevron-down) {
    margin-right: 12px;
}

/* Responsive */
@media (max-width: 959px) {
    .desktop-nav {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }
}

@media (max-width: 768px) {
    .header-container {
        min-height: var(--header-height-mobile);
    }

    .mobile-nav {
        top: var(--header-height-mobile);
    }

    .site-logo img {
        height: 48px; /* Увеличено на 20% (было 40px: +15% = 46px, +5% = 48px) */
    }
}