/* ===== AI Exposure paper overview ===== */

/* slide container */
.paper-overview {
    position: fixed;
    inset: 0;
    width: 100%;
    max-width: none;
    z-index: 1000;
    overflow-y: auto;
    overflow-x: hidden;
    background-color: #ffffff;
    transform: translateX(100%);
    visibility: hidden;
    font-family: "Century Supra T4", serif;
}

.paper-overview:target {
    animation: none !important;
    background-color: #ffffff !important;
}

.paper-overview.is-open {
    transform: translateX(0);
    visibility: visible;
}

body.overview-open { overflow: hidden; }              /* lock homepage scroll */
body.overview-open .content,
body.overview-open > footer { transform: translateX(-100vw); }

@media (prefers-reduced-motion: no-preference) {
    .paper-overview { transition: transform 0.45s ease, visibility 0s linear 0.45s; }
    .paper-overview.is-open { transition: transform 0.45s ease, visibility 0s; }
    .content, body > footer { transition: transform 0.45s ease; }
}

.overview-inner {
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem 4rem;
    font-size: 18px;
    line-height: 1.55;
    color: #1a1a1a;
}

.overview-back {
    display: inline-block;
    margin-bottom: 1rem;
    padding: 0.5rem 0.4rem;
    font-family: "Concourse C4", sans-serif;
    font-feature-settings: "c2sc" 1;
    font-size: 0.8rem;
    color: #687479;
    text-decoration: none;
}
.overview-back:hover { color: #03244d; }

/* overview trigger in the working-paper list */
.paper-overview-item {
    display: grid;
    grid-template-columns: 1fr;
    row-gap: 0.35rem;
    align-items: start;
}
.paper-overview-item p { margin-bottom: 0; }
.overview-trigger {
    display: inline-flex;
    align-items: center;
    justify-self: start;
    gap: 0.5em;
    padding: 0.5rem 0.85rem;
    border: 1px solid rgba(3, 36, 77, 0.20);
    border-radius: 999px;
    background-color: #ffffff;
    color: #03244d;
    font-family: "Concourse C4", sans-serif;
    font-feature-settings: "c2sc" 1;
    font-size: 0.64rem;
    letter-spacing: 0.05em;
    line-height: 1;
    white-space: nowrap;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.overview-trigger:hover {
    background-color: #03244d;
    border-color: #03244d;
    color: #ffffff;
    border-radius: 999px; /* keep the pill shape: overrides global a:hover border-radius */
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.overview-trigger:focus-visible {
    outline: 2px solid #B5530E;
    outline-offset: 3px;
}
.overview-trigger-arrow {
    display: inline-block;
    transition: transform 0.2s ease;
}
.overview-trigger:hover .overview-trigger-arrow { transform: translateX(0.18em); }
.overview-trigger-icon {
    width: 1.15em;
    height: 1.15em;
    flex: none;
    margin-right: -0.08em;
}

@media all and (max-width: 760px) {
    .overview-trigger {
        font-size: 0.66rem;
        padding: 0.55rem 0.9rem;
    }
}

/* ----- hero / stats / narrative / figures ----- */
.ov-eyebrow {
    font-family: "Concourse C4", sans-serif;
    font-feature-settings: "case" 1;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.72rem;
    color: #B5530E;
    margin: 0 0 0.5rem;
}
.ov-title {
    display: block;
    font-family: "Concourse C4", sans-serif;
    font-size: 2.4rem;
    line-height: 1.1;
    color: #03244d;
    margin: 0 0 0.4rem;
}
.ov-authors { font-style: italic; color: #687479; margin: 0 0 1rem; }
.ov-hook { font-size: 1.3rem; line-height: 1.4; color: #1a1a1a; margin: 0 0 1.25rem; }
.ov-measure {
    max-width: 36rem;
    margin: 0 0 1.25rem;
    font-size: 0.98rem;
    line-height: 1.45;
    color: #687479;
}
.ov-ssrn, .ov-footer-ssrn {
    display: inline-block;
    background: #03244d;
    color: #fff;
    font-family: "Concourse C4", sans-serif;
    font-size: 0.85rem;
    padding: 0.6em 1.2em;
    border-radius: 8px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}
.ov-ssrn:hover, .ov-footer-ssrn:hover { background: #B5530E; color: #fff; }

.ov-hero { border-bottom: 3px solid #03244d; padding-bottom: 1.75rem; margin-bottom: 2rem; }

.ov-stats { display: flex; flex-wrap: wrap; gap: 1.5rem; margin: 0 0 2.5rem; }
.ov-stat { flex: 1 1 220px; }
.ov-stat-num {
    display: block;
    font-family: "Concourse C4", sans-serif;
    font-size: 3rem;
    line-height: 1;
    color: #03244d;
}
.ov-stat-cap { display: block; margin-top: 0.4rem; font-size: 0.95rem; color: #687479; }

.ov-block { margin: 0 0 2.5rem; }
.ov-h2 {
    font-family: "Concourse C4", sans-serif;
    font-feature-settings: "c2sc" 1;
    font-size: 1.1rem;
    color: #03244d;
    margin: 0 0 0.75rem;
}
.ov-block p { margin: 0 0 1rem; }

.ov-figure { margin: 0 0 2.5rem; overflow-x: hidden; }
.ov-figure-title {
    font-family: "Concourse C4", sans-serif;
    font-feature-settings: "c2sc" 1;
    font-size: 0.95rem;
    color: #03244d;
    margin: 0 0 0.4rem;
}
.ov-chart { width: 100%; height: auto; display: block; }
.ov-chart-pt { font-family: "Concourse C4", sans-serif; font-size: 19px; fill: #03244d; }
.ov-chart-ax { font-family: "Concourse C4", sans-serif; font-size: 15px; fill: #687479; }
.ov-cap { font-size: 0.9rem; color: #687479; margin-top: 0.6rem; line-height: 1.4; }

/* ----- mechanism bars + evidence cards ----- */
.ov-bar-val { font-family: "Concourse C4", sans-serif; font-size: 21px; fill: #03244d; }
.ov-bar-lab { font-family: "Concourse C4", sans-serif; font-size: 16px; fill: #687479; }

.ov-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.ov-card {
    background: #f7f9fa;
    border-left: 4px solid #03244d;
    border-radius: 0 8px 8px 0;
    padding: 1rem 1.1rem;
}
.ov-card-h {
    font-family: "Concourse C4", sans-serif;
    font-size: 1rem;
    color: #03244d;
    margin: 0 0 0.4rem;
}
.ov-card p { margin: 0; font-size: 0.95rem; line-height: 1.45; }

/* ----- extracted figure, takeaway, footer, responsive ----- */
.ov-paper-fig img {
    width: 100%;
    height: auto;
    display: block;
    border: 1px solid #e3e8ea;
    border-radius: 8px;
}

.ov-takeaway p { font-size: 1.15rem; line-height: 1.5; }

.ov-footer {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 3px solid #03244d;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.25rem;
}
.ov-footer-home {
    padding: 0.5rem 0.4rem;
    font-family: "Concourse C4", sans-serif;
    font-feature-settings: "c2sc" 1;
    font-size: 0.85rem;
    color: #687479;
    text-decoration: none;
}
.ov-footer-home:hover { color: #03244d; }

@media all and (max-width: 600px) {
    .ov-title { font-size: 1.9rem; }
    .ov-hook { font-size: 1.1rem; }
    .ov-stats { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
    .ov-stat { min-width: 0; }
    .ov-stat-num { font-size: 2.4rem; }
    .ov-cards { grid-template-columns: 1fr; }
    .overview-inner { font-size: 16px; padding: 1rem 1rem 3rem; }
    .ov-chart-pt { font-size: 18px; }
    .ov-chart-ax { font-size: 14px; }
    .ov-bar-lab { font-size: 14px; }
}

/* suppress the slide transition on initial deep-link/reload (prevents the
   brief homepage+overview flash); re-enabled on the next frame by the router */
body.ov-no-anim .paper-overview,
body.ov-no-anim .content,
body.ov-no-anim > footer { transition: none !important; }

/* ----- research question callout (hero) ----- */
.ov-question {
    margin: 0 0 1.25rem;
    padding-left: 1rem;
    border-left: 4px solid #B5530E;
}
.ov-q-label {
    font-family: "Concourse C4", sans-serif;
    font-feature-settings: "c2sc" 1;
    font-size: 0.78rem;
    color: #B5530E;
    margin: 0 0 0.35rem;
}
.ov-q-text {
    font-size: 1.3rem;
    line-height: 1.4;
    color: #1a1a1a;
    margin: 0;
}

@media all and (max-width: 600px) {
    .ov-q-text { font-size: 1.1rem; }
}

/* inline links inside overview narrative (e.g. companion site) */
.ov-measure a,
.ov-takeaway p a,
.ov-block p a {
    color: #03244d;
    text-decoration: underline;
    text-underline-offset: 2px;
}
.ov-measure a:hover,
.ov-takeaway p a:hover,
.ov-block p a:hover { color: #B5530E; }