.site-header {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.9));
    box-shadow: 0 12px 30px rgba(12, 19, 28, 0.18);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    backdrop-filter: blur(6px);
    position: relative;
    z-index: 100;
    max-width: 100%;
    overflow-x: clip;
}

body.has-admin-bar .site-header {
    margin-top: 40px;
}

.header-banner {
    position: relative;
    color: var(--color-white);
    padding: 30px 0 26px;
    text-align: center;
    overflow: hidden;
    background-image:
        linear-gradient(135deg, rgba(255, 255, 255, 0.04) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.04) 50%, rgba(255, 255, 255, 0.04) 75%, transparent 75%, transparent),
        linear-gradient(90deg, rgba(213, 43, 30, 0.88) 0%, rgba(0, 57, 166, 0.88) 50%, rgba(255, 255, 255, 0.9) 100%);
    background-size: 36px 36px, cover;
    background-position: 0 0, 0 0;
}

.header-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../img/bg_texture.png') center center / cover no-repeat;
    opacity: 0.6    ;
    pointer-events: none;
    z-index: 0;
}

.header-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 0 0, rgba(0, 0, 0, 0.25), transparent 50%),
                radial-gradient(circle at 100% 100%, rgba(0, 0, 0, 0.2), transparent 50%),
                linear-gradient(90deg, transparent 55%, rgba(0, 0, 0, 0.12) 100%);
    opacity: 0.85;
    pointer-events: none;
    z-index: 0;
}

.banner-content {
    position: relative;
    z-index: 1;
}

.site-title {
    font-size: 2.6rem;
    font-weight: 700;
    letter-spacing: 2.5px;
    margin-bottom: 8px;
    text-transform: uppercase;
    text-shadow: 0 3px 8px rgba(0, 0, 0, 0.4);
    line-height: 1.15;
}

.site-title__line {
    display: inline;
}

.site-title__line + .site-title__line::before {
    content: ' ';
}

.site-subtitle {
    font-size: 1rem;
    opacity: 0.92;
    letter-spacing: 1.1px;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.35);
}

.main-nav {
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 2px solid rgba(139, 0, 0, 0.18);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.nav-menu {
    display: flex;
    justify-content: center;
    flex-wrap: nowrap;
    list-style: none;
    gap: 0;
    padding: 0;
    margin: 0;
}

.nav-menu li a {
    display: block;
    padding: 14px 20px;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.03em;
    position: relative;
    transition: color 0.25s ease, background-color 0.25s ease;
    white-space: nowrap;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: var(--color-accent);
    background-color: rgba(139, 0, 0, 0.04);
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 6px;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, var(--color-accent) 15%, var(--color-accent-soft) 50%, var(--color-accent) 85%, transparent 100%);
    opacity: 0;
    transform: scaleX(0.6);
    transform-origin: center;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    opacity: 1;
    transform: scaleX(1);
}

.nav-menu-mobile-bar {
    display: none;
}

.nav-menu-close {
    display: none;
}

@media (min-width: 769px) {
    .nav-menu-mobile-bar {
        display: none !important;
    }

    .nav-menu__links {
        display: flex;
        flex: 1 1 auto;
        justify-content: center;
        min-width: 0;
    }

    .nav-menu__links-list {
        display: flex;
        flex-wrap: nowrap;
        justify-content: center;
        align-items: stretch;
        list-style: none;
        margin: 0;
        padding: 0;
        gap: 0;
        overflow: visible;
    }

    .nav-menu__links-list > li {
        width: auto;
        border: none;
    }
}

.admin-bar {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 8px 0;
    font-size: 0.85rem;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.admin-bar.hidden {
    transform: translateY(-100%);
}

.admin-bar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.admin-bar-link {
    color: var(--color-white);
    text-decoration: none;
    padding: 4px 12px;
    border-radius: 3px;
    transition: background 0.2s;
}

.admin-bar-link:hover {
    background-color: rgba(255, 255, 255, 0.15);
}


.admin-bar-logout:hover {
    background-color: rgba(231, 76, 60, 0.8);
}

.site-footer {
    background-image:
        radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.06), transparent 55%),
        radial-gradient(circle at 100% 100%, rgba(0, 0, 0, 0.25), transparent 55%),
        linear-gradient(180deg, rgba(27, 38, 51, 0.88) 0%, rgba(17, 25, 32, 0.88) 60%, rgba(9, 13, 17, 0.9) 100%);
        background-size: 100% 100%, 100% 100%, cover;
    background-position: 0 0, 0 0, 0 0;
    background-color: #0a0e12;
    color: var(--color-white);
    padding: 42px 0 36px;
    margin-top: -1px;
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../img/bg_texture.png') center center / cover no-repeat;
    opacity: 0.48;
    pointer-events: none;
    z-index: 0;
}

.site-footer::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.04) 0,
        rgba(255, 255, 255, 0.04) 1px,
        transparent 1px,
        transparent 5px
    );
    opacity: 0.7;
    pointer-events: none;
    z-index: 0;
}

.footer-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    gap: 30px;
    text-align: center;
    min-width: 0;
}

.footer-info h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
    color: var(--color-white);
}

.footer-info p {
    margin-bottom: 10px;
}

.footer-info a {
    color: var(--color-white);
    text-decoration: underline;
}

.footer-info a:hover {
    opacity: 0.8;
}

.footer-about p {
    margin-bottom: 10px;
    opacity: 0.9;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(10.5px) rotate(45deg);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-10.5px) rotate(-45deg);
}

.mobile-menu-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.55);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

@media (max-width: 768px) {
    body.has-admin-bar .site-header {
        margin-top: 35px;
    }
    
    .admin-bar {
        padding: 6px 0;
        font-size: 0.75rem;
    }
    
    .admin-bar-content {
        gap: 10px;
    }
    
    .admin-bar-link {
        padding: 4px 10px;
        font-size: 0.75rem;
    }
    
    .header-banner {
        padding: 18px 0 16px;
        position: relative;
    }
    
    .header-banner .container {
        padding-left: max(15px, env(safe-area-inset-left, 0px));
        padding-right: max(15px, env(safe-area-inset-right, 0px));
    }
    
    .banner-content {
        position: relative;
        text-align: left;
        padding-right: 48px;
        min-height: 52px;
    }
    
    .site-title {
        font-size: clamp(1rem, 4.2vw, 1.25rem);
        letter-spacing: 0.06em;
        line-height: 1.2;
        margin-bottom: 6px;
        text-align: left;
        padding-right: 0;
    }

    .site-title__line {
        display: block;
    }

    .site-title__line + .site-title__line::before {
        content: none;
    }
    
    .site-subtitle {
        font-size: clamp(0.72rem, 3.2vw, 0.82rem);
        text-align: left;
        letter-spacing: 0.02em;
        line-height: 1.35;
        padding-right: 0;
        max-width: 100%;
    }
    
    .mobile-menu-toggle {
        display: flex;
        right: max(15px, env(safe-area-inset-right, 0px));
        z-index: 1003;
    }
    
    .main-nav {
        position: static;
        height: 0;
        min-height: 0;
        overflow: visible;
        border: none;
        box-shadow: none;
        background: transparent;
        pointer-events: none;
    }

    .main-nav .container {
        padding: 0;
        max-width: none;
        width: auto;
    }
    
    .nav-menu {
        position: fixed;
        inset: 0 0 0 auto;
        width: min(320px, 100%);
        max-width: 100%;
        height: 100%;
        min-height: 100vh;
        min-height: 100dvh;
        max-height: 100vh;
        max-height: 100dvh;
        margin: 0;
        padding: 0;
        background-color: var(--color-white);
        display: flex;
        flex-direction: column;
        flex-wrap: nowrap;
        justify-content: flex-start;
        box-shadow: -4px 0 24px rgba(0, 0, 0, 0.22);
        transform: translateX(100%);
        transition: transform 0.3s ease, visibility 0.3s ease;
        z-index: 1002;
        overflow: hidden;
        gap: 0;
        visibility: hidden;
        pointer-events: none;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-menu.mobile-open {
        transform: translateX(0);
        visibility: visible;
        pointer-events: auto;
    }

    .nav-menu-mobile-bar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        flex-shrink: 0;
        padding: max(14px, env(safe-area-inset-top, 0px)) 18px 12px;
        border-bottom: 1px solid var(--color-border);
        background: rgba(255, 255, 255, 0.98);
    }

    .nav-menu-mobile-bar__title {
        font-size: 1.05rem;
        font-weight: 700;
        color: var(--color-primary);
    }

    .nav-menu-close {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        margin: 0;
        padding: 0;
        border: 1px solid rgba(139, 0, 0, 0.18);
        border-radius: 10px;
        background: rgba(139, 0, 0, 0.06);
        color: var(--color-accent);
        cursor: pointer;
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
        flex-shrink: 0;
    }

    .nav-menu-close__icon {
        font-size: 1.75rem;
        line-height: 1;
        font-weight: 400;
        margin-top: -2px;
    }

    .nav-menu-close:hover,
    .nav-menu-close:focus-visible {
        background: rgba(139, 0, 0, 0.12);
        outline: none;
    }
    
    .nav-menu li {
        width: 100%;
        flex-shrink: 0;
    }

    .nav-menu-mobile-bar {
        border-bottom: 1px solid var(--color-border);
    }

    .nav-menu__links {
        flex: 1 1 auto;
        min-height: 0;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        border-bottom: none;
        padding: 0;
    }

    .nav-menu__links-list {
        list-style: none;
        margin: 0;
        padding: 0 0 max(12px, env(safe-area-inset-bottom, 0px));
        overflow-x: hidden;
        overflow-y: auto;
        flex: 1 1 auto;
        min-height: 0;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }

    .nav-menu__links-list > li {
        width: 100%;
        border-bottom: 1px solid var(--color-border);
    }

    .nav-menu__links-list > li:last-child {
        border-bottom: none;
    }
    
    .nav-menu__links-list a,
    .nav-menu-mobile-bar + .nav-menu__links a {
        padding: 16px 22px;
        border-bottom: none;
        font-size: 1rem;
        display: flex;
        align-items: center;
        width: 100%;
        text-align: left;
        min-height: 52px;
    }
    
    .nav-menu__links-list a.active {
        background-color: rgba(139, 0, 0, 0.08);
        border-left: 4px solid var(--color-accent);
        padding-left: 18px;
    }
    
    .nav-menu__links-list a:hover {
        background-color: rgba(139, 0, 0, 0.05);
        border-bottom: none;
    }

    .site-footer {
        padding: 28px 0 max(28px, env(safe-area-inset-bottom, 0px));
    }

    .site-footer .container {
        padding-left: max(15px, env(safe-area-inset-left, 0px));
        padding-right: max(15px, env(safe-area-inset-right, 0px));
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 22px;
        text-align: left;
    }
    
    .footer-info h3 {
        font-size: 1.05rem;
        margin-bottom: 12px;
    }
    
    .footer-info p,
    .footer-about p {
        font-size: 0.92rem;
        line-height: 1.55;
    }

    .footer-info a {
        word-break: break-word;
    }
}

@media (max-width: 480px) {
    .site-title {
        font-size: clamp(0.92rem, 4.8vw, 1.08rem);
    }
    
    .site-subtitle {
        font-size: 0.72rem;
    }
    
    .nav-menu {
        width: min(100%, 320px);
    }

    .footer-content {
        gap: 18px;
    }

    .footer-info p,
    .footer-about p {
        font-size: 0.88rem;
    }
}