/* =========================================================
   ФИКСИРОВАННАЯ ШАПКА И НАВИГАЦИЯ (GLASSMORPHISM)
========================================================= */

.site-header {
    position: fixed;
    top: 1.2rem;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 3rem);
    max-width: 1800px;
    z-index: 1000;
    padding: 0.4vw 3vw;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 1000px;
    box-shadow: 0 0 0 transparent;
    opacity: 1;
    transition: 
        background 0.35s ease,
        border-color 0.35s ease,
        box-shadow 0.35s ease,
        transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
        opacity 0.3s ease;
    will-change: background, box-shadow, transform, opacity;
}

.site-header--hidden {
    transform: translate(-50%, -160%);
    opacity: 0;
    pointer-events: none;
}

.site-header__container {
    width: 100%;
    max-width: 1800px;
    margin: 0 auto;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
}

.site-header__nav {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 5.5vw;
}

.site-header__link {
    font-family: var(--font-nav);
    font-size: clamp(14px, 1.8vw, 22px);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: -0.04em;
    color: var(--color-fg-white-accent);
    position: relative;
    padding: 0.25rem 0;
    transition: color 0.3s ease, opacity 0.25s ease, transform 0.2s ease;
}

.site-header__link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1.5px;
    background-color: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.site-header__link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.site-header__link:hover {
    opacity: 0.85;
}

.site-header__logo-link {
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.site-header__logo-link:hover {
    transform: scale(1.06);
}

.site-header__logo-image {
    width: clamp(48px, 4.2vw, 64px);
    height: auto;
    display: block;
    transition: filter 0.35s ease, transform 0.3s ease;
}

/* =========================================================
   ПЛАВАЮЩИЙ ОСТРОВНОЙ ХЕДЕР СО СКРУГЛЕНИЕМ (FLOATING ISLAND)
========================================================= */

.site-header--scrolled {
    background: rgba(255, 247, 232, 0.82);
    backdrop-filter: blur(14px) saturate(160%);
    -webkit-backdrop-filter: blur(14px) saturate(160%);
    border: 1px solid rgba(155, 99, 43, 0.2);
    box-shadow: 0 8px 24px rgba(65, 63, 63, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
}

/* =========================================================
   ТЁМНАЯ ТЕМА ШАПКИ (ДЛЯ СЕКЦИЙ С ТЁМНЫМ ФОНОМ)
========================================================= */

.site-header--dark-theme .site-header__link {
    color: #FFF7E8;
}

.site-header--dark-theme .site-header__link:hover {
    color: #FFE8E8;
}

.site-header--dark-theme .site-header__logo-image {
    filter: brightness(0) invert(0.95);
}

.site-header--scrolled.site-header--dark-theme {
    background: rgba(24, 18, 15, 0.80);
    backdrop-filter: blur(14px) saturate(180%);
    -webkit-backdrop-filter: blur(14px) saturate(180%);
    border: 1px solid rgba(255, 247, 232, 0.18);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* =========================================================
   КНОПКА БУРГЕР-МЕНЮ (ДЛЯ МОБИЛОК)
========================================================= */

.site-header__burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1002;
    -webkit-tap-highlight-color: transparent;
}

.site-header__burger .burger-line {
    display: block;
    width: 26px;
    height: 2px;
    background-color: var(--color-fg-white-accent);
    border-radius: 2px;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), 
                opacity 0.25s ease, 
                background-color 0.35s ease;
    transform-origin: center;
}

.site-header--dark-theme .site-header__burger .burger-line {
    background-color: #FFF7E8;
}

/* Анимация бургера в крестик */
.site-header__burger.is-active .burger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background-color: #FFF7E8 !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.site-header__burger.is-active .burger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.site-header__burger.is-active .burger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background-color: #FFF7E8 !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

/* Логотип становится светлым при открытом меню */
.site-header.menu-is-open .site-header__logo-image {
    filter: brightness(0) invert(0.95) !important;
}

/* Распорка в Hero чтобы контент не прыгал */
.hero__header-spacer {
    width: 100%;
    height: clamp(48px, 4.2vw, 64px);
    pointer-events: none;
    visibility: hidden;
}

/* =========================================================
   ПОЛНОЭКРАННОЕ МОБИЛЬНОЕ МЕНЮ (OVERLAY)
========================================================= */

.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    z-index: 1004;
    background: rgba(20, 14, 11, 0.95);
    backdrop-filter: blur(28px) saturate(180%);
    -webkit-backdrop-filter: blur(28px) saturate(180%);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 6rem 8vw 3rem;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-12px);
    transition: 
        opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1),
        visibility 0.35s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    box-sizing: border-box;
    overflow-y: auto;
}

.mobile-menu.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.mobile-menu__close {
    position: absolute;
    top: 1.1rem;
    right: 5vw;
    width: 44px;
    height: 44px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 10;
    -webkit-tap-highlight-color: transparent;
}

.mobile-menu__close .close-line {
    position: absolute;
    width: 26px;
    height: 2.5px;
    background-color: #FFF7E8;
    border-radius: 2px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
    transition: transform 0.25s ease, background-color 0.2s ease;
}

.mobile-menu__close .close-line--1 {
    transform: rotate(45deg);
}

.mobile-menu__close .close-line--2 {
    transform: rotate(-45deg);
}

.mobile-menu__close:hover .close-line,
.mobile-menu__close:active .close-line {
    background-color: var(--color-fg-tuff-accent);
    transform: scale(1.08) rotate(45deg);
}

.mobile-menu__close:hover .close-line--2,
.mobile-menu__close:active .close-line--2 {
    transform: scale(1.08) rotate(-45deg);
}

.mobile-menu__nav {
    display: flex;
    flex-direction: column;
    gap: 1.6rem;
    align-items: center;
    justify-content: center;
    flex: 1;
}

.mobile-menu__link {
    font-family: var(--font-nav);
    font-size: clamp(1.4rem, 6vw, 2.2rem);
    text-transform: uppercase;
    text-decoration: none;
    letter-spacing: 0.02em;
    color: #FFF7E8;
    position: relative;
    padding: 0.3rem 0;
    transition: color 0.25s ease, transform 0.25s ease, opacity 0.25s ease;
    opacity: 0.9;
}

.mobile-menu__link:hover,
.mobile-menu__link:active {
    color: var(--color-fg-tuff-accent);
    opacity: 1;
    transform: scale(1.05);
}

.mobile-menu__footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 247, 232, 0.12);
}

.mobile-menu__filials-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.85rem 1.8rem;
    font-family: var(--font-nav);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #FFF7E8;
    background: rgba(155, 99, 43, 0.35);
    border: 1px solid rgba(225, 215, 180, 0.4);
    border-radius: 999px;
    text-decoration: none;
    transition: background 0.25s ease, transform 0.25s ease;
}

.mobile-menu__filials-btn:hover,
.mobile-menu__filials-btn:active {
    background: rgba(155, 99, 43, 0.7);
    transform: scale(1.03);
}

.mobile-menu__slogan {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: rgba(255, 247, 232, 0.5);
    text-align: center;
}

/* =========================================================
   АДАПТИВ ДЛЯ ПЛАНШЕТОВ И МОБИЛОК
========================================================= */

@media (max-width: 860px) {
    .site-header__nav {
        display: none;
    }

    .site-header__container {
        position: relative;
        justify-content: center;
    }

    .site-header__burger {
        display: flex;
        position: absolute;
        right: 0;
    }

    .site-header {
        top: 0.8rem;
        width: calc(100% - 1.5rem);
        padding: 0.6vw 1.2rem;
        border-radius: 18px;
        transition: 
            background 0.25s ease,
            border-color 0.25s ease,
            box-shadow 0.25s ease,
            transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
            opacity 0.25s ease;
    }

    .site-header--scrolled {
        padding: 0.6vw 1.2rem;
        background: rgba(255, 247, 232, 0.90);
        backdrop-filter: blur(8px) saturate(140%);
        -webkit-backdrop-filter: blur(8px) saturate(140%);
        box-shadow: 0 4px 16px rgba(65, 63, 63, 0.08);
    }

    .site-header--scrolled.site-header--dark-theme {
        background: rgba(24, 18, 15, 0.88);
        backdrop-filter: blur(8px) saturate(140%);
        -webkit-backdrop-filter: blur(8px) saturate(140%);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
    }

    .site-header__logo-image {
        width: 48px;
    }
}