/* Explain: App-specific layout utilities for structure and responsiveness. */
.site-header {
    backdrop-filter: blur(18px);
    background: rgba(247, 242, 232, 0.9);
    border-bottom: 1px solid rgba(222, 211, 194, 0.82);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-shell {
    align-items: center;
    display: flex;
    gap: 1.25rem;
    justify-content: space-between;
    margin: 0 auto;
    max-width: 82rem;
    padding: 1rem clamp(1rem, 3vw, 2rem);
}

.brand-mark {
    align-items: center;
    display: inline-flex;
    flex-shrink: 0;
    gap: 0.75rem;
}

.brand-monogram {
    align-items: center;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    display: inline-flex;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    height: 2.6rem;
    justify-content: center;
    letter-spacing: 0.08em;
    width: 2.6rem;
}

.desktop-nav {
    align-items: center;
    display: none;
    gap: 0.85rem;
    min-width: 0;
}

.mobile-panel {
    background: rgba(8, 17, 31, 0.98);
    border-top: 1px solid rgba(184, 146, 74, 0.35);
    box-shadow: var(--shadow-deep);
    color: var(--inverse-text);
    display: none;
    inset: 4.65rem 0 auto 0;
    padding: 1rem;
    position: fixed;
    z-index: 49;
}

.mobile-panel.is-open {
    display: block;
}

.mobile-panel a,
.mobile-panel button {
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(184, 146, 74, 0.16);
    cursor: pointer;
    display: block;
    font-size: 0.84rem;
    font-weight: 800;
    letter-spacing: 0.13em;
    padding: 0.9rem 0;
    text-align: left;
    text-transform: uppercase;
    width: 100%;
}

.section-shell {
    margin: 0 auto;
    max-width: 82rem;
    padding-left: clamp(1rem, 3vw, 2rem);
    padding-right: clamp(1rem, 3vw, 2rem);
}

.hero-frame {
    min-height: calc(100vh - 4.7rem);
}

@media (min-width: 1280px) {
    .desktop-nav {
        display: flex;
    }

    .mobile-toggle {
        display: none;
    }

    .mobile-panel {
        display: none !important;
    }
}