.site-shell {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(18px);
    background: rgba(248, 243, 234, 0.78);
    border-bottom: 1px solid rgba(20, 53, 58, 0.08);
}

.topbar-inner {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-mark {
    width: 48px;
    height: 48px;
    border: 1px solid rgba(20, 53, 58, 0.16);
    border-radius: 16px;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, 0.45);
    box-shadow: 0 8px 24px rgba(20, 53, 58, 0.08);
}

.brand-mark svg {
    width: 28px;
    height: 28px;
    stroke: var(--accent);
}

.brand-text strong {
    display: block;
    font-family: var(--heading-font);
    font-size: 1.8rem;
    letter-spacing: 0.05em;
}

.brand-text span {
    display: block;
    margin-top: 2px;
    color: var(--accent);
    font-size: 0.78rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

.nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 18px;
    font-size: 0.98rem;
}

.nav a {
    position: relative;
    padding: 6px 2px;
}

.nav a.active::after,
.nav a:hover::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -8px;
    height: 2px;
    background: var(--accent);
}

.button {
    min-height: 48px;
    padding: 0 22px;
    border-radius: 999px;
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.96rem;
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button-primary {
    background: var(--ink);
    color: #fff9ef;
    box-shadow: 0 18px 28px rgba(20, 53, 58, 0.18);
}

.button-secondary {
    background: rgba(255, 255, 255, 0.42);
    border-color: rgba(20, 53, 58, 0.16);
}

.footer {
    padding: 18px 0 40px;
    color: var(--ink-soft);
    font-size: 0.95rem;
}

.footer-inner {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
    padding-top: 18px;
    border-top: 1px solid rgba(20, 53, 58, 0.1);
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

@media (max-width: 760px) {
    .topbar-inner {
        padding: 14px 0;
        align-items: flex-start;
        flex-direction: column;
    }

    .nav {
        justify-content: flex-start;
        gap: 10px 16px;
    }
}