/* The Thinking Lens Reading Paths
   Question-first curated journeys through the corpus. */

:root {
    --ttl-rp-ink: var(--color-darkgrey);
    --ttl-rp-muted: #6f7376;
    --ttl-rp-line: #dedede;
    --ttl-rp-soft: #f7f7f5;
    --ttl-rp-max: 980px;
    --ttl-rp-reading: 760px;
}

.ttl-reading-path-page {
    color: var(--ttl-rp-ink);
}

.ttl-reading-path-page a {
    color: inherit;
}

.ttl-reading-path-inner {
    width: 100%;
    max-width: var(--ttl-rp-max);
    margin: 0 auto;
    padding: 8rem max(4vmin, 20px) 10rem;
}

.ttl-reading-path-reading {
    max-width: var(--ttl-rp-reading);
}

.ttl-reading-path-back,
.ttl-reading-path-footer a,
.ttl-reading-path-article-link,
.ttl-reading-path-further-list a,
.ttl-reading-path-context-link,
.ttl-reading-path-overview-link {
    font-family: var(--font-sans);
    font-weight: 700;
    text-decoration: none;
}

.ttl-reading-path-back {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    margin-bottom: 3.2rem;
    color: var(--ttl-rp-muted);
    font-size: 1.35rem;
}

.ttl-reading-path-back:hover,
.ttl-reading-path-footer a:hover,
.ttl-reading-path-article-link:hover,
.ttl-reading-path-further-list a:hover,
.ttl-reading-path-context-link:hover,
.ttl-reading-path-overview-link:hover {
    text-decoration: underline;
    text-underline-offset: .3em;
}

.ttl-reading-path-eyebrow,
.ttl-reading-path-context-eyebrow {
    margin: 0;
    color: var(--ghost-accent-color);
    font-family: var(--font-sans);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: .11em;
    line-height: 1.4;
    text-transform: uppercase;
}

.ttl-reading-path-question {
    margin: 1.4rem 0 0;
    max-width: 920px;
    font-family: var(--gh-font-heading, var(--font-sans));
    font-size: clamp(4.2rem, 5.8vw, 6.8rem);
    font-weight: 700;
    line-height: 1.04;
    letter-spacing: -.035em;
}

.ttl-reading-path-header-meta {
    display: flex;
    flex-wrap: wrap;
    margin: 2rem 0 0;
    color: var(--ttl-rp-muted);
    font-family: var(--font-sans);
    font-size: 1.25rem;
    line-height: 1.5;
}

.ttl-reading-path-header-meta span + span::before {
    content: "·";
    display: inline-block;
    margin: 0 .8rem;
}

.ttl-reading-path-why,
.ttl-reading-path-sequence,
.ttl-reading-path-further,
.ttl-reading-path-footer {
    margin-top: 5.4rem;
    padding-top: 4rem;
    border-top: 1px solid var(--ttl-rp-line);
}

.ttl-reading-path-why {
    margin-top: 4.4rem;
}

.ttl-reading-path-section-title {
    margin: 0;
    font-family: var(--gh-font-heading, var(--font-sans));
    font-size: clamp(2.8rem, 3.5vw, 3.8rem);
    line-height: 1.15;
    letter-spacing: -.025em;
}

.ttl-reading-path-why p {
    margin: 1.4rem 0 0;
    font-size: 1.7rem;
    line-height: 1.72;
}

.ttl-reading-path-track {
    position: relative;
    margin-top: 2.4rem;
    padding-left: 7rem;
}

.ttl-reading-path-track::before {
    content: "";
    position: absolute;
    top: 2.1rem;
    bottom: 2.1rem;
    left: 2.35rem;
    width: 1px;
    background: var(--ttl-rp-line);
}

.ttl-reading-path-milestone {
    position: relative;
    padding: 1.45rem 0 2.05rem;
}

.ttl-reading-path-node {
    position: absolute;
    z-index: 2;
    top: 1.45rem;
    left: -7rem;
    display: flex;
    width: 4.7rem;
    height: 4.7rem;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--ghost-accent-color);
    border-radius: 50%;
    color: var(--ttl-rp-ink);
    background: #fff;
    font-family: var(--font-sans);
    font-size: 1.25rem;
    font-weight: 700;
}

.ttl-reading-path-milestone-title {
    margin: 0;
    font-family: var(--gh-font-heading, var(--font-sans));
    font-size: 2.25rem;
    line-height: 1.18;
    letter-spacing: -.018em;
}

.ttl-reading-path-excerpt {
    margin: .75rem 0 0;
    color: var(--ttl-rp-muted);
    font-size: 1.48rem;
    line-height: 1.58;
}

.ttl-reading-path-article-link {
    display: inline-block;
    margin-top: .85rem;
    color: var(--ghost-accent-color) !important;
    font-size: 1.35rem;
    line-height: 1.45;
}

.ttl-reading-path-meta {
    display: flex;
    flex-wrap: wrap;
    margin: .35rem 0 0;
    color: var(--ttl-rp-muted);
    font-family: var(--font-sans);
    font-size: 1.15rem;
    line-height: 1.45;
}

.ttl-reading-path-meta span::before {
    content: "·";
    display: inline-block;
    margin: 0 .65rem;
}

.ttl-reading-path-evolution {
    position: relative;
    margin: 1.45rem 0 2.2rem;
}

.ttl-reading-path-evolution-node {
    position: absolute;
    z-index: 2;
    top: 1.9rem;
    left: -7rem;
    width: 1rem;
    height: 1rem;
    margin-left: 1.85rem;
    border-radius: 50%;
    background: var(--ghost-accent-color);
}

.ttl-reading-path-evolution::before {
    content: "";
    position: absolute;
    top: 2.35rem;
    left: -4.15rem;
    width: 3rem;
    height: 1px;
    background: var(--ghost-accent-color);
}

.ttl-reading-path-evolution-content {
    padding: 1.8rem 2rem;
    border-radius: 6px;
    background: var(--ttl-rp-soft);
}

.ttl-reading-path-evolution-copy p {
    margin: .8rem 0 0;
    color: var(--ttl-rp-muted);
    font-size: 1.45rem;
    line-height: 1.65;
}

.ttl-reading-path-further {
    margin-top: 4.4rem;
    padding-top: 3.2rem;
}

.ttl-reading-path-further .ttl-reading-path-section-title {
    margin-top: 0;
    font-size: clamp(2.45rem, 3vw, 3.2rem);
}

.ttl-reading-path-further-list {
    margin: 1.35rem 0 0;
    padding: 0;
    list-style: none;
}

.ttl-reading-path-further-list li {
    padding: .2rem 0;
    border-top: 1px solid var(--ttl-rp-line);
}

.ttl-reading-path-further-list a {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    font-size: 1.35rem;
    line-height: 1.35;
}

.ttl-reading-path-footer {
    padding-bottom: 1rem;
}

.ttl-reading-path-footer a {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    color: var(--ttl-rp-muted);
    font-size: 1.35rem;
}

/* Article Reading Path context */
.ttl-reading-path-context,
.ttl-reading-path-continuation {
    display: none;
}

body.has-reading-path-context .ttl-reading-path-context,
body.has-reading-path-context .ttl-reading-path-continuation {
    display: block;
}

body.has-reading-path-context .read-more-wrap {
    display: none;
}

.ttl-reading-path-context {
    border-bottom: 1px solid var(--ttl-rp-line);
}

.ttl-reading-path-context-inner,
.ttl-reading-path-continuation-inner {
    width: 100%;
    max-width: 840px;
    margin: 0 auto;
    padding: 2.2rem max(4vmin, 20px);
    color: var(--ttl-rp-ink);
}

.ttl-reading-path-context-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.ttl-reading-path-context-title {
    margin: .35rem 0 0;
    font-family: var(--gh-font-heading, var(--font-sans));
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.3;
}

.ttl-reading-path-context-link,
.ttl-reading-path-overview-link {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    font-size: 1.25rem;
}

.ttl-reading-path-continuation {
    margin-top: 6rem;
    border-top: 1px solid var(--ttl-rp-line);
    border-bottom: 1px solid var(--ttl-rp-line);
}

.ttl-reading-path-nav-label {
    margin-bottom: 2rem;
}

.ttl-reading-path-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.ttl-reading-path-nav-link {
    display: flex;
    min-height: 44px;
    flex-direction: column;
    color: var(--ttl-rp-ink);
    font-family: var(--font-sans);
    text-decoration: none;
}

.ttl-reading-path-nav-link--next {
    text-align: right;
}

.ttl-reading-path-nav-direction {
    color: var(--ghost-accent-color);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.ttl-reading-path-nav-title {
    margin-top: .5rem;
    font-family: var(--gh-font-heading, var(--font-sans));
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.35;
}

.ttl-reading-path-overview-link {
    margin-top: 2.2rem;
    color: var(--ttl-rp-muted);
}

@media (max-width: 700px) {
    .ttl-reading-path-inner {
        padding-top: 5rem;
        padding-bottom: 7rem;
    }

    .ttl-reading-path-question {
        font-size: clamp(3.5rem, 11vw, 5rem);
    }

    .ttl-reading-path-header-meta {
        flex-direction: column;
        gap: .35rem;
    }

    .ttl-reading-path-header-meta span + span::before {
        display: none;
    }

    .ttl-reading-path-track {
        padding-left: 5.5rem;
    }

    .ttl-reading-path-milestone {
        padding-top: 1.25rem;
        padding-bottom: 1.9rem;
    }

    .ttl-reading-path-node {
        top: 1.25rem;
    }

    .ttl-reading-path-milestone-title {
        font-size: 2.15rem;
    }

    .ttl-reading-path-excerpt {
        font-size: 1.45rem;
        line-height: 1.55;
    }

    .ttl-reading-path-track::before {
        left: 1.9rem;
    }

    .ttl-reading-path-node {
        left: -5.5rem;
        width: 3.9rem;
        height: 3.9rem;
    }

    .ttl-reading-path-evolution-node {
        left: -5.5rem;
        margin-left: 1.4rem;
    }

    .ttl-reading-path-evolution::before {
        left: -3.5rem;
        width: 2.5rem;
    }

    .ttl-reading-path-evolution-content {
        padding: 1.6rem;
    }

    .ttl-reading-path-context-inner {
        align-items: flex-start;
        flex-direction: column;
        gap: .8rem;
    }

    .ttl-reading-path-nav {
        grid-template-columns: 1fr;
        gap: 2.4rem;
    }

    .ttl-reading-path-nav-link--next {
        text-align: left;
    }
}

@media (prefers-color-scheme: dark) {
    html.auto-color .ttl-reading-path-page,
    html.auto-color body.has-reading-path-context,
    html.auto-color .ttl-reading-path-context-inner,
    html.auto-color .ttl-reading-path-continuation-inner {
        --ttl-rp-ink: #f4f4f4;
        --ttl-rp-muted: #b1b1b1;
        --ttl-rp-line: #3f4144;
        --ttl-rp-soft: #202328;
    }

    html.auto-color .ttl-reading-path-node {
        background: var(--color-darkmode);
    }
}

html.dark-mode .ttl-reading-path-page,
html.dark-mode body.has-reading-path-context,
html.dark-mode .ttl-reading-path-context-inner,
html.dark-mode .ttl-reading-path-continuation-inner {
    --ttl-rp-ink: #f4f4f4;
    --ttl-rp-muted: #b1b1b1;
    --ttl-rp-line: #3f4144;
    --ttl-rp-soft: #202328;
}

html.dark-mode .ttl-reading-path-node {
    background: var(--color-darkmode);
}

/* Reading Paths overview */
.ttl-reading-paths-page {
    color: var(--ttl-rp-ink);
}

.ttl-reading-paths-page a {
    color: inherit;
}

.ttl-reading-paths-inner {
    width: 100%;
    max-width: var(--ttl-rp-max);
    margin: 0 auto;
    padding: 8rem max(4vmin, 20px) 10rem;
}

.ttl-reading-paths-intro {
    max-width: var(--ttl-rp-reading);
}

.ttl-reading-paths-title {
    margin: 1.4rem 0 0;
    font-family: var(--gh-font-heading, var(--font-sans));
    font-size: clamp(4.2rem, 5.8vw, 6.8rem);
    font-weight: 700;
    line-height: 1.04;
    letter-spacing: -.035em;
}

.ttl-reading-paths-intro-copy {
    margin-top: 2rem;
}

.ttl-reading-paths-intro-copy p {
    margin: 1rem 0 0;
    font-size: 1.7rem;
    line-height: 1.68;
}

.ttl-reading-paths-list {
    margin-top: 4.8rem;
    border-bottom: 1px solid var(--ttl-rp-line);
}

.ttl-reading-paths-row {
    display: grid;
    grid-template-columns: 6rem minmax(0, 1fr) 15rem;
    gap: 2.4rem;
    padding: 2.8rem 0;
    border-top: 1px solid var(--ttl-rp-line);
}

.ttl-reading-paths-number {
    color: var(--ghost-accent-color);
    font-family: var(--gh-font-heading, var(--font-sans));
    font-size: 3.2rem;
    font-weight: 500;
    line-height: 1;
}

.ttl-reading-paths-name {
    margin: 0;
    color: var(--ghost-accent-color);
    font-family: var(--font-sans);
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: .1em;
    line-height: 1.4;
    text-transform: uppercase;
}

.ttl-reading-paths-question {
    margin: .45rem 0 0;
    font-family: var(--gh-font-heading, var(--font-sans));
    font-size: 2.45rem;
    font-weight: 700;
    line-height: 1.16;
    letter-spacing: -.02em;
}

.ttl-reading-paths-description {
    max-width: 640px;
    margin: .85rem 0 0;
    color: var(--ttl-rp-muted);
    font-size: 1.45rem;
    line-height: 1.58;
}

.ttl-reading-paths-action {
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    gap: .65rem;
    padding-top: .25rem;
    font-family: var(--font-sans);
}

.ttl-reading-paths-count {
    color: var(--ttl-rp-muted);
    font-size: 1.15rem;
}

.ttl-reading-paths-link {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    color: var(--ghost-accent-color) !important;
    font-size: 1.25rem;
    font-weight: 700;
    text-decoration: none;
}

.ttl-reading-paths-link:hover {
    text-decoration: underline;
    text-underline-offset: .3em;
}

.ttl-reading-paths-explainer {
    display: grid;
    grid-template-columns: 18rem minmax(0, 1fr);
    gap: 2.4rem;
    margin-top: 4.4rem;
    padding: 2.4rem;
    border-radius: 6px;
    background: var(--ttl-rp-soft);
}

.ttl-reading-paths-explainer-title {
    margin: .45rem 0 0;
    font-family: var(--gh-font-heading, var(--font-sans));
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1.2;
}

.ttl-reading-paths-explainer-copy p {
    margin: 0 0 .85rem;
    color: var(--ttl-rp-muted);
    font-size: 1.4rem;
    line-height: 1.6;
}

.ttl-reading-paths-explainer-copy p:last-child {
    margin-bottom: 0;
}

@media (max-width: 700px) {
    .ttl-reading-paths-inner {
        padding-top: 5rem;
        padding-bottom: 7rem;
    }

    .ttl-reading-paths-title {
        font-size: clamp(3.5rem, 11vw, 5rem);
    }

    .ttl-reading-paths-row {
        grid-template-columns: 4rem minmax(0, 1fr);
        gap: 1.4rem;
        padding: 2.4rem 0;
    }

    .ttl-reading-paths-number {
        font-size: 2.7rem;
    }

    .ttl-reading-paths-question {
        font-size: 2.2rem;
    }

    .ttl-reading-paths-action {
        grid-column: 2;
        gap: .2rem;
        padding-top: .25rem;
    }

    .ttl-reading-paths-explainer {
        grid-template-columns: 1fr;
        gap: 1.3rem;
        padding: 2rem;
    }
}