.bt-services { --ink: #23303b; --muted: #61717c; --accent: #0d637b; --border: #dce5e9; --paper: #f4f7f8; margin: 0; font: 16px/1.55 Arial, sans-serif; color: var(--ink); background: white; }
.bt-services * { box-sizing: border-box; }
.bt-services a { color: var(--accent); text-underline-offset: 4px; }
.bt-services a:focus-visible { outline: 3px solid #168eaa; outline-offset: 5px; }
.bt-services img { display: block; max-width: 100%; }
.bt-services .wrap { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.bt-services .page-intro { padding: 28px 0; }
.bt-services h1 { max-width: 1000px; margin: 0 0 18px; color: #173d4d; font-size: clamp(31px, 4vw, 48px); font-weight: 700; line-height: 1.15; letter-spacing: -.025em; }
.bt-services .lead { max-width: 800px; margin: 0; color: #4b5d69; font-size: 19px; line-height: 1.6; }
.bt-services .group-nav { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.bt-services .group-nav a { display: inline-flex; align-items: center; min-height: 40px; padding: 8px 16px; color: #17495a; border: 1px solid #cbdde3; border-radius: 999px; font-size: 14px; text-decoration: none; }
.bt-services .group-nav a:hover { background: #eaf3f6; border-color: #7aadb9; }
.bt-services .service-group { margin: 0; padding: 46px 0; border-top: 1px solid #e7edef; scroll-margin-top: calc(var(--site-header-height, 170px) + 16px); }
.bt-services .service-group:nth-of-type(even) { background: var(--paper); }
.bt-services .service-grid { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: 58px; align-items: start; }
.bt-services .group-number { display: inline-block; color: #0d7287; font-size: 13px; font-weight: 700; letter-spacing: .08em; margin-bottom: 10px; }
.bt-services h2 { margin: 0 0 14px; color: #173d4d; font-size: clamp(25px, 3vw, 32px); font-weight: 700; line-height: 1.18; letter-spacing: -.015em; }
.bt-services .group-intro p { margin: 0 0 22px; color: var(--muted); font-size: 15px; }
.bt-services .group-image { width: 100%; height: 196px; object-fit: cover; border-radius: 10px; background: #e5ecef; }
.bt-services .service-list { display: grid; gap: 12px; }
.bt-services .service-card { position: relative; display: block; min-width: 0; padding: 23px 54px 22px 24px; background: white; border: 1px solid var(--border); border-radius: 10px; color: var(--ink); text-decoration: none; transition: border-color .15s, box-shadow .15s; }
.bt-services .service-card:hover { border-color: #8ab2bf; box-shadow: 0 5px 18px #183e4c09; }
.bt-services .service-card h3 { margin: 0 0 8px; font-size: 19px; line-height: 1.35; color: #17485b; font-weight: 700; }
.bt-services .service-card p { margin: 0; color: #5b6b75; font-size: 14px; line-height: 1.6; }
.bt-services .card-arrow { position: absolute; top: 23px; right: 23px; color: #0c7188; font-size: 23px; line-height: 1; }
.bt-services .group-more { display: inline-block; justify-self: start; margin-top: 6px; font-size: 13px; }
.bt-services .project-cta { margin: 0; background: #173d4d; color: white; padding: 42px 0; }
.bt-services .cta-inner { display: flex; gap: 32px; align-items: center; justify-content: space-between; }
.bt-services .project-cta h2 { color: white; margin-bottom: 8px; font-size: 30px; }
.bt-services .project-cta p { margin: 0; max-width: 720px; color: #d4e2e7; font-size: 16px; }
.bt-services .button { display: inline-flex; justify-content: center; align-items: center; flex-shrink: 0; min-height: 46px; padding: 12px 22px; color: #173d4d; background: white; border: 1px solid transparent; border-radius: 6px; font-size: 14px; font-weight: 700; text-decoration: none; }
@media (prefers-reduced-motion: reduce) { .bt-services .service-card { transition: none; } }
@media (max-width: 1000px) { .bt-services .service-grid { grid-template-columns: minmax(0, 290px) minmax(0, 1fr); gap: 30px; } }
@media (max-width: 760px) {
 .bt-services .page-intro { padding-top: 22px; padding-bottom: 26px; }
 .bt-services .lead { font-size: 17px; }
 .bt-services .group-nav { gap: 8px; margin-top: 20px; }
 .bt-services .group-nav a { padding: 7px 12px; font-size: 12px; }
 .bt-services .service-group { padding: 30px 0; }
 .bt-services .service-grid { grid-template-columns: 1fr; gap: 20px; }
 .bt-services .group-intro { display: grid; grid-template-columns: minmax(0, 1fr) 96px; column-gap: 16px; }
 .bt-services .group-number, .bt-services .group-intro h2 { grid-column: 1; }
 .bt-services .group-number { margin-bottom: 8px; }
 .bt-services .group-intro p { grid-column: 1 / -1; margin-top: 10px; margin-bottom: 0; }
 .bt-services .group-image { grid-column: 2; grid-row: 1 / 3; width: 96px; height: 96px; border-radius: 8px; align-self: start; }
 .bt-services .service-card { padding: 19px 42px 19px 19px; }
 .bt-services .service-card h3 { font-size: 18px; }
 .bt-services .card-arrow { right: 17px; top: 20px; font-size: 21px; }
 .bt-services .cta-inner { display: block; }
 .bt-services .project-cta { padding: 32px 0; }
 .bt-services .project-cta h2 { font-size: 27px; }
 .bt-services .project-cta .button { margin-top: 22px; }
}
@media (max-width: 360px) {
 .bt-services .wrap { width: calc(100% - 32px); }
 .bt-services .group-intro { grid-template-columns: 1fr; }
 .bt-services .group-image { display: none; }
}