.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(24px);
    background: rgba(255, 250, 247, 0.65);
    border-bottom: 1px solid rgba(234, 222, 214, 0.4);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.site-header.is-scrolled {
    box-shadow: 0 10px 40px rgba(95, 39, 70, 0.06);
    background: rgba(255, 250, 247, 0.85);
    border-bottom: 1px solid rgba(234, 222, 214, 0.8);
}

.header-shell {
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    position: relative;
    z-index: 10;
    flex-shrink: 0;
}

.brand:hover .brand-mark {
    transform: rotate(-10deg) scale(1.08);
    border-radius: 50%;
    box-shadow: 0 12px 24px rgba(139, 74, 107, 0.3);
}

.brand-mark {
    width: 56px;
    height: 56px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px 18px 18px 6px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    font-family: var(--font-quote);
    font-size: 2.2rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.brand-text {
    display: grid;
    gap: 0.1rem;
}

.brand-title {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--primary-dark);
    white-space: nowrap;
}

.brand-subtitle {
    color: var(--muted);
    font-size: 0.92rem;
    white-space: nowrap;
    max-width: 250px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.main-nav ul {
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.main-nav a {
    position: relative;
    display: inline-block;
    white-space: nowrap;
    padding: 0.5rem 0.8rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--muted);
    border-radius: var(--radius-pill);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1;
}

.main-nav a::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: var(--radius-pill);
    background: rgba(139, 74, 107, 0.08);
    opacity: 0;
    transform: scale(0.85);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: -1;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
    color: var(--primary-dark);
}

.main-nav a:hover::before,
.main-nav a[aria-current="page"]::before {
    opacity: 1;
    transform: scale(1);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    flex-shrink: 0;
}

.header-actions .btn {
    min-height: 44px;
    padding: 0.6rem 1.2rem;
    white-space: nowrap;
}

.header-actions .btn-primary:hover {
    box-shadow: 0 8px 25px rgba(139, 74, 107, 0.4);
}

.mobile-only-actions {
    display: none;
}

.menu-toggle {
    display: none;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(139, 74, 107, 0.14);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.88);
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
    content: "";
    display: block;
    width: 22px;
    height: 2px;
    background: var(--primary-dark);
    margin: 0 auto;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-toggle::before {
    transform: translateY(-6px);
}

.menu-toggle::after {
    transform: translateY(6px);
}

.menu-toggle[aria-expanded="true"] span {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"]::before {
    transform: translateY(2px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"]::after {
    transform: translateY(0) rotate(-45deg);
}

@media (max-width: 1200px) {
    .brand-subtitle {
        display: none;
    }
}

@media (max-width: 980px) {
    .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .main-nav {
        position: fixed;
        inset: 84px 1rem auto 1rem;
        padding: 1rem;
        border-radius: 28px;
        background: rgba(255, 250, 247, 0.98);
        border: 1px solid rgba(234, 222, 214, 0.95);
        box-shadow: var(--shadow-md);
        transform: translateY(-16px);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.25s ease, transform 0.25s ease;
    }

    .main-nav.is-open {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    .main-nav ul,
    .header-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .desktop-actions {
        display: none;
    }

    .mobile-only-actions {
        display: flex;
        margin-top: 1.5rem;
        padding-top: 1.5rem;
        border-top: 1px solid rgba(139, 74, 107, 0.1);
    }
}