/* Track specification hub — overview content only. */
.ct-spec-hub {
        --ct-spec-ink: #16213a;
        --ct-spec-muted: #5d6779;
        --ct-spec-line: #dbe2ec;
        --ct-spec-soft: #f4f6fb;
        --ct-spec-navy: #0b2545;
        --ct-spec-red: #c8102e;
        max-width: 1240px;
        margin: 0 auto;
        color: var(--ct-spec-ink);
}
.ct-spec-hub p { color: var(--ct-spec-ink); }
.ct-spec-eyebrow {
        margin: 0 0 10px !important;
        color: var(--ct-spec-red) !important;
        font-size: 12px;
        font-weight: 800;
        letter-spacing: .1em;
        line-height: 1.3;
        text-transform: uppercase;
}
.ct-spec-hero {
        display: grid;
        grid-template-columns: minmax(0, 1.45fr) minmax(260px, .55fr);
        gap: 48px;
        align-items: end;
        margin: 0 -20px;
        padding: 74px 60px 62px;
        background: var(--ct-spec-navy);
        color: #fff;
}
.ct-spec-hero h1,
.ct-spec-hero p { color: #fff; }
.ct-spec-hero h1 {
        max-width: 760px;
        margin: 0 0 18px;
        font-size: clamp(36px, 5vw, 62px);
        letter-spacing: -.035em;
}
.ct-spec-hero__lead {
        max-width: 720px;
        margin: 0;
        color: #e7edf6 !important;
        font-size: 19px;
        line-height: 1.55;
}
.ct-spec-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        margin-top: 28px;
}
.ct-spec-actions .button.primary {
        background: #fff !important;
        border-color: #fff !important;
        color: var(--ct-spec-navy) !important;
}
.ct-spec-actions .button.secondary {
        border-color: rgba(255,255,255,.55) !important;
        color: #fff !important;
}
.ct-spec-hero__micro {
        margin: 16px 0 0;
        color: #c9d5e6 !important;
        font-size: 13px;
}
.ct-spec-hero__index {
        display: flex;
        flex-direction: column;
        gap: 9px;
        padding: 24px;
        border: 1px solid rgba(255,255,255,.2);
        border-top: 3px solid var(--ct-spec-red);
        color: #e7edf6;
        font-size: 14px;
}
.ct-spec-hero__index strong { color: #fff; font-size: 17px; }
.ct-spec-hero__index a { color: #fff; text-decoration: underline; }
.ct-spec-index__number {
        color: #ffb5c0;
        font-size: 34px;
        font-weight: 800;
        line-height: 1;
}
.ct-spec-jump {
        display: flex;
        flex-wrap: wrap;
        gap: 0;
        margin: 0 -20px;
        padding: 0 60px;
        background: #f5f7fb;
        border-bottom: 1px solid var(--ct-spec-line);
}
.ct-spec-jump a {
        padding: 17px 19px;
        color: var(--ct-spec-navy);
        font-size: 13px;
        font-weight: 700;
        text-decoration: none;
}
.ct-spec-jump a:hover { color: var(--ct-spec-red); }
.ct-spec-section { padding: 74px 0 12px; }
.ct-spec-section__heading { max-width: 790px; margin-bottom: 30px; }
.ct-spec-section__heading--split {
        display: flex;
        justify-content: space-between;
        align-items: end;
        gap: 24px;
        max-width: none;
}
.ct-spec-section h2,
.ct-spec-final-cta h2 {
        margin: 0 0 12px;
        color: var(--ct-spec-navy);
        font-size: clamp(28px, 4vw, 43px);
        letter-spacing: -.025em;
}
.ct-spec-section__heading p:not(.ct-spec-eyebrow) { margin-bottom: 0; color: var(--ct-spec-muted); }
.ct-spec-text-link {
        flex: 0 0 auto;
        color: var(--ct-spec-red);
        font-size: 14px;
        font-weight: 800;
        text-decoration: none;
}
.ct-spec-text-link:hover { color: var(--ct-spec-navy); }
.ct-spec-audience { padding-top: 62px; }
.ct-spec-audience-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 12px;
}
.ct-spec-route {
        position: relative;
        display: flex;
        flex-direction: column;
        min-height: 205px;
        padding: 22px 20px 18px;
        background: var(--ct-spec-soft);
        border: 1px solid var(--ct-spec-line);
        color: var(--ct-spec-ink);
        text-decoration: none;
        transition: border-color .15s ease, transform .15s ease;
}
.ct-spec-route:hover { border-color: var(--ct-spec-red); color: var(--ct-spec-ink); transform: translateY(-2px); }
.ct-spec-route__tag,
.ct-spec-shape-card__number,
.ct-spec-evidence-card__label {
        color: var(--ct-spec-red);
        font-size: 11px;
        font-weight: 800;
        letter-spacing: .08em;
        text-transform: uppercase;
}
.ct-spec-route strong { margin: 14px 0 8px; color: var(--ct-spec-navy); font-size: 18px; line-height: 1.2; }
.ct-spec-route > span:not(.ct-spec-route__tag):not(.ct-spec-arrow) { color: var(--ct-spec-muted); font-size: 14px; line-height: 1.5; }
.ct-spec-arrow { margin-top: auto; padding-top: 15px; color: var(--ct-spec-red); font-size: 21px; font-weight: 700; }
.ct-spec-intro { margin: -12px 0 28px; color: var(--ct-spec-muted); }
.ct-spec-shape-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
}
.ct-spec-shape-card {
        display: flex;
        flex-direction: column;
        overflow: hidden;
        background: #fff;
        border: 1px solid var(--ct-spec-line);
}
.ct-spec-shape-card__diagram {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 170px;
        padding: 14px 18px 4px;
        background: #f7f9fc;
}
.ct-spec-shape-card__diagram svg { width: 100%; max-width: 220px; height: auto; }
.ct-spec-shape-card__diagram path {
        fill: none;
        stroke: #98a4b3;
        stroke-linecap: round;
        stroke-linejoin: round;
        stroke-width: 4;
}
.ct-spec-shape-card__diagram path.ct-spec-track { stroke: var(--ct-spec-red); stroke-width: 5; }
.ct-spec-shape-card__diagram text {
        fill: var(--ct-spec-red);
        font-family: inherit;
        font-size: 13px;
        font-weight: 800;
        text-anchor: middle;
}
.ct-spec-shape-card__body { display: flex; flex: 1; flex-direction: column; padding: 20px; }
.ct-spec-shape-card__number { margin: 0 0 7px; }
.ct-spec-shape-card h3 { margin: 0 0 8px; color: var(--ct-spec-navy); font-size: 21px; }
.ct-spec-shape-card p { margin: 0 0 9px; color: var(--ct-spec-muted); font-size: 14px; line-height: 1.5; }
.ct-spec-shape-card__route { min-height: 42px; }
.ct-spec-shape-card__cta {
        align-self: flex-start;
        margin-top: auto;
        padding: 0 13px !important;
        color: var(--ct-spec-navy) !important;
        font-size: 12px !important;
        line-height: 36px !important;
}
.ct-spec-shape-card__cta:hover { color: #fff !important; }
.ct-spec-callout {
        display: flex;
        align-items: center;
        gap: 18px;
        margin-top: 22px;
        padding: 18px 22px;
        background: #fff7f8;
        border-left: 4px solid var(--ct-spec-red);
}
.ct-spec-callout strong { color: var(--ct-spec-navy); }
.ct-spec-callout span { flex: 1; color: var(--ct-spec-muted); font-size: 14px; }
.ct-spec-callout .button { white-space: nowrap; }
.ct-spec-measure-section { margin: 52px -20px 0; padding: 74px 60px 82px; background: var(--ct-spec-soft); }
.ct-spec-measure-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(280px, .6fr); gap: 52px; }
.ct-spec-steps { list-style: none; margin: 0; padding: 0; }
.ct-spec-steps li { display: flex; gap: 18px; padding: 0 0 24px; }
.ct-spec-steps li + li { padding-top: 24px; border-top: 1px solid var(--ct-spec-line); }
.ct-spec-steps li > span { flex: 0 0 37px; color: var(--ct-spec-red); font-size: 13px; font-weight: 800; }
.ct-spec-steps strong { display: block; margin-bottom: 3px; color: var(--ct-spec-navy); font-size: 19px; }
.ct-spec-steps p { margin: 0; color: var(--ct-spec-muted); font-size: 15px; }
.ct-spec-measure-note { padding: 27px; background: var(--ct-spec-navy); color: #fff; }
.ct-spec-measure-note h3 { margin: 0 0 16px; color: #fff; font-size: 23px; }
.ct-spec-measure-note .ct-spec-eyebrow { color: #ffb5c0 !important; }
.ct-spec-measure-note ul { margin: 0 0 21px 18px; padding: 0; color: #e7edf6; font-size: 14px; }
.ct-spec-measure-note li { margin-bottom: 7px; }
.ct-spec-text-link--dark { color: #fff; }
.ct-spec-fixing-grid,
.ct-spec-evidence-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.ct-spec-fixing-card,
.ct-spec-evidence-card { padding: 25px; border: 1px solid var(--ct-spec-line); }
.ct-spec-fixing-card__icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        margin-bottom: 18px;
        background: var(--ct-spec-soft);
        color: var(--ct-spec-red);
        font-size: 11px;
        font-weight: 800;
}
.ct-spec-fixing-card h3,
.ct-spec-evidence-card h3 { margin: 0 0 10px; color: var(--ct-spec-navy); font-size: 21px; }
.ct-spec-fixing-card p,
.ct-spec-evidence-card p { margin: 0 0 18px; color: var(--ct-spec-muted); font-size: 14px; line-height: 1.55; }
.ct-spec-fixing-card a,
.ct-spec-evidence-card a { color: var(--ct-spec-red); font-size: 13px; font-weight: 800; text-decoration: none; }
.ct-spec-install-route {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 28px;
        margin-top: 22px;
        padding: 27px 30px;
        background: var(--ct-spec-soft);
}
.ct-spec-install-route h3 { margin: 0 0 6px; color: var(--ct-spec-navy); font-size: 23px; }
.ct-spec-install-route p { max-width: 720px; margin: 0; color: var(--ct-spec-muted); font-size: 14px; }
.ct-spec-install-route__actions { display: flex; flex: 0 0 auto; flex-wrap: wrap; gap: 9px; }
.ct-spec-evidence-card { border-top: 3px solid var(--ct-spec-navy); }
.ct-spec-evidence-card--qualified { border-top-color: #b47b00; }
.ct-spec-evidence-card--qualified .ct-spec-evidence-card__label { color: #946800; }
.ct-spec-related-section { padding-top: 78px; }
.ct-spec-related-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ct-spec-line); border-left: 1px solid var(--ct-spec-line); }
.ct-spec-related-grid a { display: flex; flex-direction: column; gap: 5px; padding: 19px 20px; border-right: 1px solid var(--ct-spec-line); border-bottom: 1px solid var(--ct-spec-line); color: var(--ct-spec-ink); text-decoration: none; }
.ct-spec-related-grid a:hover { background: var(--ct-spec-soft); color: var(--ct-spec-ink); }
.ct-spec-related-grid strong { color: var(--ct-spec-navy); font-size: 17px; }
.ct-spec-related-grid span { flex: 1; color: var(--ct-spec-muted); font-size: 13px; line-height: 1.45; }
.ct-spec-related-grid a::after { color: var(--ct-spec-red); content: '→'; font-weight: 800; }
.ct-spec-final-cta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 40px;
        margin: 78px -20px 0;
        padding: 42px 60px;
        background: var(--ct-spec-navy);
}
.ct-spec-final-cta h2,
.ct-spec-final-cta p { color: #fff; }
.ct-spec-final-cta h2 { margin-bottom: 8px; font-size: clamp(26px, 3vw, 38px); }
.ct-spec-final-cta p { max-width: 600px; margin: 0; color: #dce5f1; }
.ct-spec-final-cta__actions { display: flex; flex: 0 0 auto; flex-wrap: wrap; align-items: center; gap: 10px; }
.ct-spec-final-cta .button.primary { background: #fff !important; border-color: #fff !important; color: var(--ct-spec-navy) !important; }
.ct-spec-final-cta .button.secondary { border-color: rgba(255,255,255,.5) !important; color: #fff !important; }
.ct-spec-phone { flex-basis: 100%; color: #fff; font-size: 13px; font-weight: 700; text-align: right; text-decoration: underline; }
@media (max-width: 1024px) {
        .ct-spec-audience-grid { grid-template-columns: repeat(2, 1fr); }
        .ct-spec-shape-grid { grid-template-columns: repeat(2, 1fr); }
        .ct-spec-measure-grid { gap: 28px; }
        .ct-spec-final-cta { align-items: flex-start; flex-direction: column; }
        .ct-spec-phone { flex-basis: auto; }
}
@media (max-width: 720px) {
        .ct-spec-hero { display: block; margin: 0 -15px; padding: 50px 25px 38px; }
        .ct-spec-hero h1 { font-size: 39px; }
        .ct-spec-hero__lead { font-size: 17px; }
        .ct-spec-hero__index { margin-top: 30px; }
        .ct-spec-jump { gap: 0; margin: 0 -15px; padding: 0 15px; overflow-x: auto; flex-wrap: nowrap; }
        .ct-spec-jump a { flex: 0 0 auto; padding: 14px 12px; font-size: 12px; }
        .ct-spec-section { padding-top: 54px; }
        .ct-spec-section__heading--split { display: block; }
        .ct-spec-section__heading--split .ct-spec-text-link { display: inline-block; margin-top: 10px; }
        .ct-spec-audience { padding-top: 48px; }
        .ct-spec-audience-grid,
        .ct-spec-shape-grid,
        .ct-spec-fixing-grid,
        .ct-spec-evidence-grid,
        .ct-spec-related-grid { grid-template-columns: 1fr; }
        .ct-spec-shape-card__diagram { min-height: 150px; }
        .ct-spec-callout { align-items: flex-start; flex-direction: column; gap: 9px; }
        .ct-spec-measure-section { margin: 38px -15px 0; padding: 55px 25px 62px; }
        .ct-spec-measure-grid { display: block; }
        .ct-spec-measure-note { margin-top: 25px; }
        .ct-spec-install-route { align-items: flex-start; flex-direction: column; padding: 23px; }
        .ct-spec-install-route__actions { width: 100%; }
        .ct-spec-final-cta { margin: 58px -15px 0; padding: 38px 25px; }
        .ct-spec-final-cta__actions { align-items: flex-start; flex-direction: column; }
        .ct-spec-phone { text-align: left; }
}