.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(244, 247, 240, .94);
    backdrop-filter: blur(18px);
    box-shadow: 0 1px 0 rgba(9, 41, 58, .08);
}

.header-inner > a {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    flex: 0 0 auto;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: transparent;
    cursor: pointer;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
    display: block;
    width: 19px;
    height: 2px;
    margin: auto;
    border-radius: 2px;
    background: var(--ink);
    content: "";
    transition: transform .2s ease, top .2s ease, background .2s ease;
}

.menu-toggle span { position: relative; }
.menu-toggle span::before { position: absolute; top: -6px; }
.menu-toggle span::after { position: absolute; top: 6px; }
.menu-toggle[aria-expanded="true"] span { background: transparent; }
.menu-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

@media (max-width: 1100px) {
    .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
    body.menu-open { overflow: hidden; }
    .header-inner { min-height: 76px; }
    .menu-toggle { display: block; }
    .nav {
        position: fixed;
        top: 76px;
        right: 0;
        left: 0;
        display: flex;
        max-height: calc(100dvh - 76px);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        overflow-y: auto;
        border-top: 1px solid var(--line);
        padding: 14px 20px 24px;
        background: var(--cream);
        box-shadow: 0 25px 45px rgba(6, 28, 41, .16);
        opacity: 0;
        pointer-events: none;
        transform: translateY(-12px);
        transition: opacity .2s ease, transform .2s ease;
    }
    .nav.is-open { opacity: 1; pointer-events: auto; transform: none; }
    .nav > a:not(.button), .nav .button {
        display: flex;
        min-height: 52px;
        align-items: center;
        margin: 0;
        border-bottom: 1px solid var(--line);
        padding: 12px 4px;
        font-size: .88rem;
    }
    .nav .button { justify-content: center; margin-top: 14px; border: 0; padding-inline: 20px; }
    .hero { padding: 72px 0 76px; }
    .hero-grid { align-items: start; }
    .hero h1 { max-width: 760px; font-size: clamp(2.45rem, 7vw, 4rem); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
    .logo { width: 140px; }
    .hero { padding: 52px 0 60px; }
    .breadcrumb { margin-bottom: 18px; }
    .hero-grid { gap: 25px; }
    .hero h1 { font-size: clamp(2.05rem, 10.5vw, 2.75rem); line-height: 1.06; }
    .hero .lede { font-size: .98rem; }
    .proof div { padding: 19px 12px; }
    .proof strong { font-size: 1.15rem; }
    .proof span { line-height: 1.35; }
    .split, .faq { gap: 28px; }
    .cta-box { padding: 58px 20px; }
    .footer-grid { grid-template-columns: 1fr; gap: 26px; }
    .footer-brand { grid-column: auto; }
    .footer { padding-top: 52px; }
}

@media (prefers-reduced-motion: reduce) {
    .nav, .menu-toggle span, .menu-toggle span::before, .menu-toggle span::after { transition: none; }
}