:root {
    --csa-navy: #10283f;
    --csa-blue: #1e496a;
    --csa-orange: #e5642c;
    --csa-ink: #17212b;
    --csa-muted: #5d6975;
    --csa-line: #dce2e7;
    --csa-soft: #f3f6f8;
    --csa-white: #fff;
}

.csa-page,
.csa-page * { box-sizing: border-box; }

.csa-page {
    width: min(1280px, calc(100% - 40px));
    margin: 0 auto;
    color: var(--csa-ink);
    font-size: 16px;
    line-height: 1.65;
}

.csa-page h1,
.csa-page h2,
.csa-page h3 {
    color: var(--csa-navy);
    letter-spacing: 0;
    line-height: 1.18;
    margin-top: 0;
}

.csa-page h1 { font-size: clamp(36px, 5vw, 64px); margin-bottom: 20px; }
.csa-page h2 { font-size: clamp(28px, 3vw, 38px); margin-bottom: 22px; }
.csa-page h3 { font-size: 19px; margin-bottom: 8px; }
.csa-page p { margin: 0 0 18px; }
.csa-page a { color: var(--csa-blue); }
.csa-page img { display: block; max-width: 100%; }

.csa-breadcrumb {
    display: flex;
    gap: 9px;
    align-items: center;
    flex-wrap: wrap;
    padding: 24px 0;
    color: var(--csa-muted);
    font-size: 14px;
}

.csa-breadcrumb a { color: var(--csa-muted); text-decoration: none; }
.csa-breadcrumb a:hover { color: var(--csa-orange); }

.csa-eyebrow,
.csa-card-type {
    color: var(--csa-orange);
    font-size: 12px;
    font-weight: 750;
    letter-spacing: 0;
    text-transform: uppercase;
}

.csa-hero {
    display: grid;
    min-height: 430px;
    align-items: center;
    padding: 58px 64px;
    margin-bottom: 56px;
    color: var(--csa-white);
    background: var(--csa-navy);
}

.csa-hero-with-image { grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); gap: 54px; }
.csa-hero h1 { color: var(--csa-white); max-width: 850px; }
.csa-hero-copy > p:not(.csa-eyebrow) { max-width: 760px; color: #dbe5ec; font-size: 18px; }
.csa-hero-media { margin: 0; background: var(--csa-white); overflow: hidden; }
.csa-hero-media img { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; }
.csa-actions { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; margin-top: 28px; }
.csa-button { display: inline-flex; align-items: center; min-height: 48px; padding: 10px 22px; background: var(--csa-orange); color: var(--csa-white) !important; font-weight: 700; text-decoration: none; border-radius: 4px; }
.csa-button:hover { background: #c94e1b; }
.csa-secondary-link { color: var(--csa-white) !important; font-weight: 700; text-underline-offset: 4px; }

.csa-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 68px; align-items: start; }
.csa-sidebar { position: sticky; top: 32px; }
.admin-bar .csa-sidebar { top: 64px; }
.csa-sidebar nav { border-left: 3px solid var(--csa-line); padding-left: 20px; }
.csa-sidebar strong { display: block; margin-bottom: 12px; color: var(--csa-navy); }
.csa-sidebar a { display: block; padding: 6px 0; color: var(--csa-muted); font-size: 14px; text-decoration: none; }
.csa-sidebar a:hover { color: var(--csa-orange); }
.csa-article { min-width: 0; }
.csa-content-section { padding: 0 0 58px; margin-bottom: 58px; border-bottom: 1px solid var(--csa-line); scroll-margin-top: 28px; }
.csa-content-section:last-child { border-bottom: 0; }

.csa-application-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--csa-line); margin-bottom: 30px; }
.csa-application-list > div { min-height: 150px; padding: 24px 26px 20px 0; border-bottom: 1px solid var(--csa-line); }
.csa-application-list > div:nth-child(odd) { padding-right: 30px; }
.csa-application-list > div:nth-child(even) { padding-left: 30px; border-left: 1px solid var(--csa-line); }
.csa-application-list p { color: var(--csa-muted); }
.csa-inline-list { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; }
.csa-inline-list li { border: 1px solid var(--csa-line); padding: 7px 11px; font-size: 14px; }

.csa-checklist { list-style: none; padding: 0; margin: 0; }
.csa-checklist li { position: relative; padding: 14px 10px 14px 38px; border-bottom: 1px solid var(--csa-line); }
.csa-checklist li::before { content: "\2713"; position: absolute; left: 8px; top: 13px; color: var(--csa-orange); font-weight: 800; }

.csa-data-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 28px 0 34px; border: 1px solid var(--csa-line); }
.csa-data-grid div { padding: 20px; border-bottom: 1px solid var(--csa-line); }
.csa-data-grid div:nth-child(odd) { border-right: 1px solid var(--csa-line); }
.csa-data-grid div:nth-last-child(-n + 2) { border-bottom: 0; }
.csa-data-grid dt { color: var(--csa-muted); font-size: 13px; }
.csa-data-grid dd { margin: 5px 0 0; color: var(--csa-navy); font-weight: 700; overflow-wrap: anywhere; }
.csa-two-column { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 50px; }
.csa-two-column ul { padding-left: 20px; }
.csa-two-column li { margin-bottom: 6px; }
.csa-notice { padding: 34px; border: 1px solid #e4a183; border-left: 5px solid var(--csa-orange); background: #fff8f4; }

.csa-faq-list { border-top: 1px solid var(--csa-line); }
.csa-faq-list details { border-bottom: 1px solid var(--csa-line); }
.csa-faq-list summary { cursor: pointer; padding: 20px 34px 20px 0; color: var(--csa-navy); font-weight: 700; }
.csa-faq-list details p { padding: 0 0 20px; color: var(--csa-muted); }
.csa-related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--csa-line); }
.csa-related-grid a { display: block; min-height: 125px; padding: 22px; text-decoration: none; border-right: 1px solid var(--csa-line); }
.csa-related-grid a:last-child { border-right: 0; }
.csa-related-grid span { display: block; margin-bottom: 8px; color: var(--csa-muted); font-size: 12px; }
.csa-related-grid strong { color: var(--csa-navy); }
.csa-related-grid a:hover strong { color: var(--csa-orange); }
.csa-rfq-section { scroll-margin-top: 28px; margin: 0 0 70px; }

.csa-index-header { max-width: 880px; padding: 52px 0 48px; }
.csa-index-header > p:last-child { color: var(--csa-muted); font-size: 19px; }
.csa-category-nav { display: flex; flex-wrap: wrap; gap: 8px; padding: 18px 0; border-top: 1px solid var(--csa-line); border-bottom: 1px solid var(--csa-line); }
.csa-category-nav a { padding: 8px 12px; color: var(--csa-navy); font-size: 14px; font-weight: 700; text-decoration: none; background: var(--csa-soft); }
.csa-category-nav a:hover { color: var(--csa-orange); }
.csa-index-section { padding: 64px 0; border-bottom: 1px solid var(--csa-line); scroll-margin-top: 20px; }
.csa-section-heading { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 26px; }
.csa-section-heading h2 { margin-bottom: 0; }
.csa-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.csa-guide-card { display: flex; flex-direction: column; min-width: 0; border: 1px solid var(--csa-line); border-radius: 4px; overflow: hidden; background: var(--csa-white); }
.csa-guide-card > img { width: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: var(--csa-soft); }
.csa-guide-card-body { display: flex; flex: 1; flex-direction: column; padding: 24px; }
.csa-guide-card h3 a { color: var(--csa-navy); text-decoration: none; }
.csa-guide-card h3 a:hover { color: var(--csa-orange); }
.csa-guide-card-body > p:not(.csa-card-type) { color: var(--csa-muted); }
.csa-text-link { margin-top: auto; font-weight: 700; text-decoration: none; }

@media (max-width: 960px) {
    .csa-hero-with-image { grid-template-columns: 1fr; }
    .csa-hero-media { max-width: 620px; }
    .csa-layout { grid-template-columns: 1fr; gap: 0; }
    .csa-sidebar { position: static; margin-bottom: 40px; }
    .csa-sidebar nav { display: flex; flex-wrap: wrap; gap: 5px 16px; }
    .csa-sidebar strong { width: 100%; }
    .csa-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
    .csa-page { width: min(100% - 28px, 1280px); }
    .csa-page h1 { font-size: 38px; overflow-wrap: anywhere; }
    .csa-page h2 { font-size: 28px; overflow-wrap: anywhere; }
    .csa-hero { min-height: 0; padding: 38px 24px; margin-bottom: 42px; }
    .csa-hero-copy > p:not(.csa-eyebrow) { font-size: 16px; }
    .csa-application-list,
    .csa-data-grid,
    .csa-two-column,
    .csa-related-grid,
    .csa-card-grid { grid-template-columns: 1fr; }
    .csa-application-list > div,
    .csa-application-list > div:nth-child(odd),
    .csa-application-list > div:nth-child(even) { min-height: 0; padding: 20px 0; border-left: 0; }
    .csa-data-grid div,
    .csa-data-grid div:nth-child(odd) { border-right: 0; border-bottom: 1px solid var(--csa-line); }
    .csa-data-grid div:last-child { border-bottom: 0; }
    .csa-related-grid a { border-right: 0; border-bottom: 1px solid var(--csa-line); }
    .csa-related-grid a:last-child { border-bottom: 0; }
    .csa-section-heading { align-items: start; flex-direction: column; gap: 8px; }
    .csa-notice { padding: 24px; }
}


/* v1.2.0 application-led layout */
.csa-index-scope {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 34px;
}
.csa-index-scope > div {
    display: flex;
    flex-direction: column;
    min-height: 190px;
    padding: 24px;
    border: 1px solid var(--csa-line);
    background: var(--csa-white);
}
.csa-index-scope strong { color: var(--csa-navy); font-size: 17px; }
.csa-index-scope span { display: block; margin: 9px 0 16px; color: var(--csa-muted); font-size: 14px; }
.csa-index-scope a { margin-top: auto; font-weight: 700; text-decoration: none; }
.csa-function-heading { max-width: 850px; margin-bottom: 30px; }
.csa-function-heading > p:last-child { color: var(--csa-muted); font-size: 17px; }
.csa-function-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.csa-function-card { border: 1px solid var(--csa-line); background: var(--csa-white); }
.csa-function-card-copy { display: flex; min-height: 210px; flex-direction: column; padding: 25px; }
.csa-function-card h3 { margin-bottom: 10px; }
.csa-function-card h3 a { color: var(--csa-navy); text-decoration: none; }
.csa-function-card h3 a:hover { color: var(--csa-orange); }
.csa-function-card-copy > p:not(.csa-card-type) { color: var(--csa-muted); }
.csa-function-card .csa-text-link { margin-top: auto; }
.csa-index-footer-note { max-width: 900px; padding: 68px 0 82px; }
.csa-index-footer-note p:last-child { color: var(--csa-muted); font-size: 18px; }
.csa-decision-section > p:not(.csa-eyebrow) { font-size: 18px; }
.csa-focus-box { margin-top: 24px; padding: 18px 20px; border-left: 4px solid var(--csa-orange); background: var(--csa-soft); }
.csa-alternative-list { margin: 22px 0 24px; padding-left: 22px; }
.csa-alternative-list li { margin-bottom: 8px; }
.csa-soft-section { padding: 34px; background: var(--csa-soft); border-bottom: 0; }
.csa-path-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.csa-path-grid a { display: flex; min-height: 165px; flex-direction: column; padding: 22px; border: 1px solid var(--csa-line); text-decoration: none; background: var(--csa-white); }
.csa-path-grid span { color: var(--csa-orange); font-size: 12px; font-weight: 750; text-transform: uppercase; }
.csa-path-grid strong { margin: 6px 0 8px; color: var(--csa-navy); font-size: 18px; }
.csa-path-grid small { color: var(--csa-muted); font-size: 14px; line-height: 1.5; }
.csa-path-grid a:hover strong { color: var(--csa-orange); }
.csa-rfq-intro { max-width: 850px; margin: 0 0 28px; }
.csa-rfq-intro p:last-child { color: var(--csa-muted); }

@media (max-width: 960px) {
    .csa-index-scope { grid-template-columns: 1fr; }
    .csa-function-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
    .csa-path-grid { grid-template-columns: 1fr; }
    .csa-soft-section { padding: 24px; }
    .csa-function-card-copy { min-height: 0; }
}