:root {
    --km24-header-height: 82px;
}

.km24-site-header {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 50;
    color: var(--km24-cream, #f6f0e6);
    isolation: isolate;
    transition: background-color 220ms ease, border-color 220ms ease, box-shadow 220ms ease, backdrop-filter 220ms ease;
}

.km24-site-header::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    border-bottom: 1px solid transparent;
    background: linear-gradient(180deg, rgba(13, 11, 8, 0.62), rgba(13, 11, 8, 0));
    transition: background 220ms ease, border-color 220ms ease, box-shadow 220ms ease, backdrop-filter 220ms ease;
}

.km24-site-header.is-scrolled::before,
.km24-site-header.is-menu-open::before {
    border-bottom-color: rgba(198, 164, 109, 0.22);
    background: rgba(18, 14, 9, 0.82);
    box-shadow: 0 18px 46px rgba(0, 0, 0, 0.22);
    backdrop-filter: blur(18px);
}

.km24-site-header__inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: clamp(24px, 3.2vw, 52px);
    width: min(1280px, calc(100% - 48px));
    min-height: var(--km24-header-height);
    margin: 0 auto;
}

.km24-site-header__logo {
    display: inline-flex;
    align-items: baseline;
    gap: 10px;
    min-width: max-content;
    color: var(--km24-cream, #f6f0e6);
    text-decoration: none;
}

.km24-site-header__logo-mark {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.92rem;
    line-height: 1;
    letter-spacing: 0;
}

.km24-site-header__logo-text {
    color: rgba(246, 240, 230, 0.7);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.km24-site-header__nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(14px, 1.55vw, 25px);
    min-width: 0;
}

.km24-site-header__nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    color: rgba(246, 240, 230, 0.78);
    font-size: clamp(0.7rem, 0.78vw, 0.82rem);
    font-weight: 800;
    letter-spacing: 0.055em;
    text-decoration: none;
    text-transform: uppercase;
    white-space: nowrap;
    transition: color 180ms ease;
}

.km24-site-header__nav-link::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 3px;
    left: 0;
    height: 1px;
    background: var(--km24-warm, #c6a46d);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 180ms ease;
}

.km24-site-header__nav-link:hover,
.km24-site-header__nav-link:focus-visible {
    color: var(--km24-cream, #f6f0e6);
}

.km24-site-header__nav-link:hover::after,
.km24-site-header__nav-link:focus-visible::after {
    transform: scaleX(1);
}

.km24-site-header__cta,
.km24-mobile-menu__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border: 1px solid rgba(198, 164, 109, 0.72);
    border-radius: 999px;
    background: rgba(198, 164, 109, 0.92);
    color: #17120c;
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.09em;
    text-decoration: none;
    text-transform: uppercase;
    transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.km24-site-header__cta {
    padding: 0 21px;
    white-space: nowrap;
}

.km24-site-header__cta:hover,
.km24-site-header__cta:focus-visible,
.km24-mobile-menu__cta:hover,
.km24-mobile-menu__cta:focus-visible {
    border-color: var(--km24-warm, #c6a46d);
    background: var(--km24-warm, #c6a46d);
    box-shadow: 0 14px 34px rgba(198, 164, 109, 0.18);
    transform: translateY(-1px);
}

.km24-site-header__toggle {
    position: relative;
    display: none;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(246, 240, 230, 0.28);
    border-radius: 50%;
    background: rgba(246, 240, 230, 0.06);
    color: var(--km24-cream, #f6f0e6);
    cursor: pointer;
    transition: border-color 180ms ease, background-color 180ms ease;
}

.km24-site-header__toggle:hover,
.km24-site-header__toggle:focus-visible {
    border-color: rgba(198, 164, 109, 0.72);
    background: rgba(198, 164, 109, 0.12);
}

.km24-site-header__toggle span {
    position: absolute;
    left: 14px;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform 220ms ease, top 220ms ease;
}

.km24-site-header__toggle span:first-child {
    top: 18px;
}

.km24-site-header__toggle span:last-child {
    top: 27px;
}

.km24-site-header.is-menu-open .km24-site-header__toggle span:first-child {
    top: 23px;
    transform: rotate(45deg);
}

.km24-site-header.is-menu-open .km24-site-header__toggle span:last-child {
    top: 23px;
    transform: rotate(-45deg);
}

.km24-mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 1;
    display: none;
    min-height: 100vh;
    padding-top: var(--km24-header-height);
    background:
        radial-gradient(circle at 20% 0%, rgba(198, 164, 109, 0.14), transparent 38%),
        #15120e;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 220ms ease, visibility 220ms ease, transform 220ms ease;
}

.km24-mobile-menu__inner {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: min(100% - 40px, 560px);
    min-height: calc(100vh - var(--km24-header-height));
    margin: 0 auto;
    padding: 42px 0 34px;
}

.km24-mobile-menu__nav {
    display: grid;
    gap: 2px;
}

.km24-mobile-menu__link {
    display: flex;
    align-items: center;
    min-height: 62px;
    border-bottom: 1px solid rgba(198, 164, 109, 0.18);
    color: var(--km24-cream, #f6f0e6);
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(2.1rem, 10.5vw, 4.2rem);
    line-height: 1;
    text-decoration: none;
    transition: color 180ms ease, padding-left 180ms ease;
}

.km24-mobile-menu__link:hover,
.km24-mobile-menu__link:focus-visible {
    color: var(--km24-warm, #c6a46d);
    padding-left: 8px;
}

.km24-mobile-menu__cta {
    width: 100%;
    min-height: 56px;
    margin-top: 38px;
}

.km24-menu-lock {
    overflow: hidden;
}

@media (max-width: 1180px) {
    .km24-site-header__inner {
        grid-template-columns: auto 1fr auto auto;
        gap: 20px;
    }

    .km24-site-header__nav {
        justify-content: flex-end;
        gap: 14px;
    }

    .km24-site-header__nav-link {
        font-size: 0.68rem;
        letter-spacing: 0.035em;
    }
}

@media (max-width: 1024px) {
    :root {
        --km24-header-height: 76px;
    }

    .km24-site-header__inner {
        grid-template-columns: auto 1fr auto;
        width: min(100% - 32px, 720px);
    }

    .km24-site-header__nav,
    .km24-site-header__cta {
        display: none;
    }

    .km24-site-header__toggle {
        display: inline-flex;
        grid-column: 3;
    }

    .km24-mobile-menu {
        display: block;
    }

    .km24-site-header.is-menu-open .km24-mobile-menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
}

@media (max-width: 520px) {
    .km24-site-header__logo {
        gap: 8px;
    }

    .km24-site-header__logo-mark {
        font-size: 1.62rem;
    }

    .km24-site-header__logo-text {
        max-width: 116px;
        font-size: 0.58rem;
        line-height: 1.1;
    }

    .km24-mobile-menu__inner {
        width: min(100% - 32px, 420px);
        padding-top: 30px;
    }

    .km24-mobile-menu__link {
        min-height: 56px;
    }
}