/* Home — flagship editorial page.
   Page-scoped styles only; shared contract lives in components/layout css. */

/* ── Hero ───────────────────────────────────────────────── */
.home-hero {
    padding-block: clamp(56px, 8vw, 110px) clamp(48px, 7vw, 88px);
    border-bottom: var(--hair);
}
.home-hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
}
.home-hero__copy .eyebrow i { font-size: .95em; }
.home-hero__title {
    font-size: var(--fs-display);
    font-weight: 800;
    letter-spacing: -.025em;
    max-width: 16ch;
    margin-bottom: .3em;
}
.home-hero__institution {
    margin-bottom: var(--sp-3);
    font-size: var(--fs-tiny);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: var(--track-caps);
    color: var(--muted);
}
.home-hero__statement {
    margin-bottom: var(--sp-4);
    font-size: clamp(1.05rem, 1.6vw, 1.25rem);
    color: var(--ink-soft);
    max-width: 46ch;
}
.home-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
}

/* ── Agent loop (hero aside) ────────────────────────────── */
.agent-loop {
    border-top: var(--rule-heavy);
    padding-top: var(--sp-3);
}
.agent-loop__header {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: var(--sp-3);
}
.agent-loop__kicker {
    font-size: var(--fs-tiny);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: var(--track-caps);
    color: var(--accent-ink);
}
.agent-loop__header strong { font-size: 1.02rem; }
.agent-loop__steps {
    list-style: none;
    margin: 0;
    padding: 0;
}
.agent-loop__step {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-3);
    margin: 0;
    padding-block: 9px;
    position: relative;
}
.agent-loop__step + .agent-loop__step {
    margin-top: 4px;
}
.agent-loop__step + .agent-loop__step::before {
    content: '\2193';
    position: absolute;
    top: -11px;
    left: 4px;
    font-size: .68rem;
    line-height: 1;
    color: var(--accent-ink);
}
.agent-loop__icon {
    flex: 0 0 auto;
    font-size: 1rem;
    color: var(--ink);
    line-height: 1.4;
}
.agent-loop__text {
    display: flex;
    flex-direction: column;
    min-width: 0;
}
.agent-loop__text strong { font-size: var(--fs-small); }
.agent-loop__text small {
    font-size: var(--fs-tiny);
    color: var(--muted);
}
.agent-loop__output {
    margin-top: 2px;
    font-size: var(--fs-tiny);
    font-weight: 600;
    color: var(--accent-ink);
}
.agent-loop__cycle {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 10px 0 0;
    padding-top: 10px;
    border-top: var(--hair);
    font-size: var(--fs-tiny);
    color: var(--muted);
}

/* ── Research layers ────────────────────────────────────── */
.home-layer {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: var(--sp-2) var(--sp-5);
    padding-block: var(--sp-4);
    border-top: var(--hair);
}
.home-layer:first-child { border-top: var(--rule-heavy); }
.home-layer:last-child { border-bottom: var(--hair); }
.home-layer__meta {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-2);
}
.home-layer__subtitle {
    font-size: var(--fs-tiny);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--muted);
}
.home-layer--focus .home-layer__subtitle { color: var(--accent-ink); }
.home-layer__content {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-3);
}
.home-layer__icon {
    flex: 0 0 auto;
    font-size: 1.45rem;
    line-height: 1.25;
    color: var(--ink);
}
.home-layer--focus .home-layer__icon { color: var(--accent-ink); }
.home-layer__title { margin-bottom: .25em; }
.home-layer__body {
    margin: 0;
    color: var(--muted);
    max-width: 72ch;
}

.home-focus-closing {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin: var(--sp-5) 0 0;
    padding: var(--sp-3) var(--sp-4);
    max-width: 76ch;
    border-left: 2px solid var(--accent);
    background: var(--paper-soft);
    color: var(--ink-soft);
}
.home-focus-closing i {
    flex: 0 0 auto;
    color: var(--accent-ink);
    line-height: var(--lh-body);
}
.home-focus-closing span { min-width: 0; }

/* ── Focus cards (How we work) ──────────────────────────── */
.home-focus-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-4);
}
.home-infra { grid-column: 1 / -1; }

.home-card__heading {
    display: flex;
    align-items: center;
    gap: 12px;
}
.home-card__heading .card__icon { font-size: 1.25rem; }
.home-card__heading .card__title { margin: 0; }

.home-focus-card__list {
    list-style: none;
    margin: var(--sp-2) 0 0;
    padding: 0;
}
.home-focus-card__list li {
    position: relative;
    margin: 0;
    padding: 10px 0 10px 20px;
    border-top: var(--hair);
    font-size: var(--fs-small);
    color: var(--muted);
}
.home-focus-card__list li::before {
    content: "";
    position: absolute;
    left: 0;
    /* centre the rule on the first line: padding-top + half a line box (1.7 × .5em) */
    top: calc(10px + .85em);
    margin-top: -1px;
    width: 9px;
    height: 2px;
    background: var(--accent);
}
.home-focus-card__list li:last-child { padding-bottom: 0; }

.home-infra__summary {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--muted);
}
.home-infra__metrics { margin: var(--sp-2) 0 0; }
.home-infra__metric {
    margin: 0;
    border-top: var(--rule-heavy);
    padding-top: var(--sp-2);
}
.home-infra__metric .metric {
    border-top: 0;
    padding-top: 0;
}
.home-infra__label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    font-size: var(--fs-tiny);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--ink-soft);
}
.home-infra__label i {
    color: var(--accent-ink);
    font-size: .95rem;
}
.home-infra__metric dd { margin: 0; }

/* ── Explore / quick links ──────────────────────────────── */
.home-explore {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(28px, 5vw, 64px);
    align-items: start;
}
.home-explore__copy .section-header { margin-bottom: 0; }

.home-quicklinks {
    display: flex;
    flex-direction: column;
}
.home-quicklink {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding-block: 17px;
    border-bottom: var(--hair);
    font-weight: 700;
    color: var(--ink);
}
.home-quicklink:first-child { border-top: var(--rule-heavy); }
.home-quicklink__index {
    flex: 0 0 auto;
    font-size: var(--fs-tiny);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    letter-spacing: .08em;
    color: var(--faint);
}
.home-quicklink--primary .home-quicklink__index { color: var(--accent-ink); }
.home-quicklink__icon {
    flex: 0 0 auto;
    font-size: 1.05rem;
    line-height: 1;
    color: var(--ink-soft);
}
.home-quicklink__title {
    font-size: 1.05rem;
    min-width: 0;
}
.home-quicklink__arrow {
    margin-left: auto;
    color: var(--faint);
    transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}
.home-quicklink:hover { color: var(--ink); }
.home-quicklink:hover .home-quicklink__arrow {
    color: var(--accent-ink);
    transform: translate(2px, -2px);
}

/* ── Conference promo (inverted band) ───────────────────── */
.home-promo {
    background: var(--ink);
    color: var(--paper);
    border-top: var(--rule-heavy);
}
.home-promo__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4) var(--sp-5);
}
.home-promo__copy { max-width: 720px; }
.home-promo__eyebrow { color: rgba(255, 255, 255, .68); }
.home-promo__title { color: var(--paper); }
.home-promo__body {
    margin: 0;
    color: rgba(255, 255, 255, .74);
    max-width: 62ch;
}
.home-promo__btn {
    flex: 0 0 auto;
    background: transparent;
    border-color: var(--paper);
    color: var(--paper);
}
.home-promo__btn:hover {
    background: var(--paper);
    border-color: var(--paper);
    color: var(--ink);
}

/* ── Tablet ─────────────────────────────────────────────── */
@media (max-width: 1023px) {
    .home-hero__grid { grid-template-columns: 1fr; }
    .agent-loop { max-width: 560px; }

    .home-layer {
        grid-template-columns: 1fr;
        padding-block: var(--sp-3);
    }
    .home-layer__meta {
        flex-direction: row;
        align-items: center;
        gap: var(--sp-3);
    }

    .home-focus-grid { grid-template-columns: 1fr; }
    .home-explore { grid-template-columns: 1fr; }
}

/* ── Mobile ─────────────────────────────────────────────── */
@media (max-width: 639px) {
    .home-hero { padding-block: var(--sp-5); }
    .home-hero__statement { font-size: 1.02rem; }

    .home-infra__metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--sp-3);
    }

    .home-focus-closing { padding: var(--sp-3); }

    .home-quicklink { gap: var(--sp-2); }
    .home-quicklink__title { font-size: 1rem; }
}