/* KD Framework ? Header component */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    width: 100%;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    background: rgba(2, 6, 23, 0.82);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.16);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
}

.header-inner {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 82px;
    gap: 30px;
}

.site-logo {
    display: inline-flex;
    flex-shrink: 0;
    align-items: center;
    gap: 11px;
    color: var(--text);
    text-decoration: none;
    font-size: 20px;
    font-weight: 750;
    letter-spacing: -0.03em;
}

.site-logo__mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 13px;
    background: linear-gradient(135deg, #60a5fa, var(--primary) 58%, #1d4ed8);
    color: #fff;
    font-size: 15px;
    letter-spacing: -0.02em;
    box-shadow: 0 10px 28px rgba(37, 99, 235, 0.35);
}

.site-logo__text {
    color: var(--text);
}

.main-navigation {
    display: flex;
    align-items: center;
    gap: clamp(18px, 2.2vw, 30px);
    margin-left: auto;
}

.main-navigation__menu {
    display: contents;
    margin: 0;
    padding: 0;
}

.main-navigation__menu li {
    list-style: none;
}

.main-navigation__menu a {
    display: block;
}

.custom-logo-link {
    display: inline-flex;
    flex-shrink: 0;
    align-items: center;
}

.custom-logo {
    width: auto;
    max-width: 190px;
    max-height: 52px;
}

.main-navigation a {
    position: relative;
    color: var(--muted);
    text-decoration: none;
    font-size: 15px;
    font-weight: 550;
    white-space: nowrap;
    transition: color 0.2s ease;
}

.main-navigation a::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: -9px;
    left: 0;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, #60a5fa, var(--primary));
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.2s ease;
}

.main-navigation a:hover,
.main-navigation a:focus-visible {
    color: var(--text);
}

.main-navigation a:hover::after,
.main-navigation a:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left;
}

.btn--header {
    min-height: 42px;
    padding: 12px 18px;
    font-size: 14px;
    white-space: nowrap;
}

.menu-toggle {
    display: none;
    width: 46px;
    height: 46px;
    padding: 11px;
    margin-left: auto;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 13px;
    background: rgba(15, 23, 42, 0.88);
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    margin: 5px 0;
    border-radius: 999px;
    background: var(--text);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

@media (max-width: 980px) {
    .header-inner {
            min-height: 72px;
        }

    .menu-toggle {
            display: block;
        }

    .btn--header {
            display: none;
        }

    .main-navigation {
            position: absolute;
            top: calc(100% + 10px);
            right: 0;
            left: 0;
            display: flex;
            flex-direction: column;
            align-items: stretch;
            gap: 4px;
            padding: 10px;
            border: 1px solid rgba(148, 163, 184, 0.16);
            border-radius: 18px;
            background: rgba(2, 6, 23, 0.98);
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
        }

    .main-navigation.is-open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

    .main-navigation a {
            padding: 14px 13px;
            border-radius: 11px;
        }

    .main-navigation a:hover,
        .main-navigation a:focus-visible {
            background: rgba(37, 99, 235, 0.12);
        }

    .main-navigation a::after {
            display: none;
        }

    .menu-toggle.is-active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

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

    .menu-toggle.is-active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
}

@media (max-width: 480px) {
    .site-logo__text {
            font-size: 18px;
        }

    .site-logo__mark {
            width: 39px;
            height: 39px;
        }
}