/* ===== TOPBAR ===== */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding: 18px 64px;
    border-bottom: 1px solid var(--rule);
    position: relative;
    z-index: 10;
    background: var(--paper);
}

.topbar-brand {
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.14em;
    font-weight: 500;
    text-transform: uppercase;
}

.topbar-nav {
    display: flex;
    gap: 40px;
    align-items: center;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.08em;
}

.topbar-nav a {
    text-transform: uppercase;
}

.topbar-nav a.active {
    color: var(--accent);
}

.btn-ink {
    background: var(--ink);
    color: var(--paper);
    padding: 10px 18px;
}

/* Hamburger hidden on desktop */
.nav-hamburger {
    display: none;
}

/* ===== SECTIONS ===== */
.section {
    padding: 128px 64px;
    border-bottom: 1px solid var(--rule);
}

.section .chip-row {
    margin-bottom: 48px;
}

/* ===== STAGGERED 12-COL GRID ===== */
.stagger {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 24px;
}

.stagger-lead {
    grid-column: 1 / span 5;
    font-size: 22px;
    line-height: 1.6;
    font-weight: 500;
    color: var(--ink-70);
    margin: 0;
}

.stagger-follow {
    grid-column: 6 / span 5;
    font-size: 18px;
    line-height: 1.65;
    font-weight: 500;
    color: var(--ink-60);
    margin: 0;
}

.two-col {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 64px;
    align-items: start;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--paper);
    border-top: 1px solid var(--rule);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    padding: 24px 64px;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--ink-50);
}

.footer-copy {
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.footer-links {
    display: flex;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-link {
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* The homepage CTA band sits directly on the footer; the band's bottom edge
   already reads as a rule, so avoid doubling it */
.cta-band + .footer {
    border-top: none;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
    .topbar {
        padding: 16px 24px;
    }

    .topbar-nav {
        position: fixed;
        inset: 0;
        background: var(--paper);
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        gap: 32px;
        padding: 24px;
        font-size: 16px;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
        z-index: 20;
    }

    .topbar-nav.open {
        opacity: 1;
        visibility: visible;
    }

    /* Hamburger button */
    .nav-hamburger {
        display: flex;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        z-index: 30;
        padding: 4px;
        position: relative;
    }

    .nav-hamburger span {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--ink);
        transition: all 0.3s ease;
    }

    .nav-hamburger.open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-hamburger.open span:nth-child(2) {
        opacity: 0;
    }

    .nav-hamburger.open span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .section {
        padding: 72px 24px;
    }

    .stagger {
        display: block;
    }

    .stagger-follow {
        margin-top: 24px;
    }

    .two-col {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-inner {
        padding: 24px;
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 20px;
    }
}