.announcement {
    background: var(--brown);
    color: #fff4ee;
    font-family: var(--sans);
    font-size: clamp(.68rem, .8vw, .86rem);
    font-weight: 500;
    letter-spacing: clamp(.03em, .12vw, .08em);
    line-height: 1.4;
    padding: clamp(7px, .7vw, 11px) 16px;
    text-align: center;
}

.announcement span {
    margin: 0 clamp(6px, 1vw, 12px);
    opacity: .7;
}

/* ---------- HEADER (desktop) ---------- */
.site-header {
    align-items: center;
    background: rgba(255, 250, 247, .96);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--line);
    display: flex;
    gap: 30px;
    height: 100px;
    padding: 0 clamp(20px, 5vw, 76px);
    position: sticky;
    top: 0;
    z-index: 50;
}

.brand { display: flex; align-items: center; }
.brand-logo { height: 90px; width: auto; }

.site-nav {
    color: var(--nav-text);
    display: flex;
    font-size: clamp(.88rem, 1vw, 1.05rem);
    font-weight: 500;
    gap: clamp(18px, 2.6vw, 40px);
    justify-content: center;
    margin: auto;
}
.site-nav a {
    color: var(--nav-text);
    font-family: var(--sans);
    line-height: 1.4;
    position: relative;
    transition: color .2s;
}
.site-nav a::after {
    content: "";
    position: absolute;
    left: 0; bottom: -4px;
    width: 0; height: 1px;
    background: var(--rose-dark);
    transition: width .25s;
}
.site-nav a:hover { color: var(--rose-dark); }
.site-nav a:hover::after { width: 100%; }

.header-actions { align-items: center; display: flex; gap: 18px; }
.header-actions button,
.header-actions a,
.menu-toggle {
    background: none;
    border: 0;
    color: var(--nav-text);
    cursor: pointer;
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    padding: 4px;
}
.header-actions a:hover,
.header-actions button:hover,
.menu-toggle:hover { color: var(--rose-dark); }

.menu-toggle { display: none; font-size: 1.3rem; }

/* ---------- TABLET / MOBILE ---------- */
@media (max-width: 800px) {
    .site-header {
        display: grid;
        grid-template-columns: 1fr auto 1fr; /* left | center | right */
        align-items: center;
        gap: 10px;
        height: 64px;
        padding: 0 16px;
    }

    .menu-toggle {
        display: block;
        justify-self: start;
    }

    .brand {
        justify-self: center;
    }
    .brand-logo { height: 42px; }

    .header-actions {
        justify-self: end;
        gap: 14px;
    }
    .header-actions a { font-size: 1.25rem; }

    /* dropdown menu */
    .site-nav {
        background: var(--paper);
        border-bottom: 1px solid var(--line);
        box-shadow: 0 12px 20px rgba(158, 109, 91, .12);
        display: none;
        flex-direction: column;
        font-size: 1rem;
        font-weight: 500;
        gap: 18px;
        left: 0;
        margin: 0;
        padding: 22px;
        position: absolute;
        right: 0;
        text-align: center;
        top: 100%;
    }
    .site-nav.is-open { display: flex; }
}

@media (max-width: 430px) {
    .announcement {
        font-size: .68rem;
        padding: 7px 10px;
    }

    .announcement span {
        margin: 0 6px;
    }
    .site-header { height: 58px; padding: 0 14px; }
    .brand-logo { height: 36px; }
    .header-actions { gap: 12px; }
    .site-nav { font-size: .95rem; }
}