/* Product composition: the existing OS city and restrained blue identity. */
.nav-links { gap: 22px; }
.lang-switch button.lang-opt { background: none; border: 0; color: inherit; font: inherit; padding: 10px 3px; }
.os-hero-proof { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 27px; color: #b7bec9; font: .72rem/1.7 var(--mono); }
.os-hero-proof > span + span::before { content: '•'; color: var(--accent); margin-right: 18px; }
body.os .os-platform, body.os .os-automation, body.os .os-intake,
body.os .os-audience { position: relative; isolation: isolate; }
.os-platform::before, .os-automation::before, .os-intake::before, .os-audience::before {
  content: ''; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,.94) 14%, rgba(0,0,0,.94) 86%, transparent);
}
body.os section:not(.os-hero):not(.os-rail) { padding: clamp(80px, 8vw, 120px) 0; }
.os-section-heading { max-width: 840px; margin-bottom: 48px; }
.os-section-heading h2, .os-automation h2, .os-api-compact h2 { font-size: clamp(2rem, 3.6vw, 3.35rem); line-height: 1.12; letter-spacing: -.045em; margin: 18px 0 24px; }
.os-section-lede { color: #b7bec9; max-width: 690px; font-size: 1.08rem; line-height: 1.75; }
.os-number { display: inline-block; color: #83adf3; font: .75rem/1.5 var(--mono); letter-spacing: .04em; }
.os-capability-grid, .os-audience-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 32px; }
.os-capability, .os-audience-grid article { border-top: 1px solid var(--line-strong); padding: 24px 0 8px; }
.os-capability h3, .os-audience-grid h3 { font-size: 1.15rem; font-weight: 510; line-height: 1.4; margin: 23px 0 12px; }
.os-capability p, .os-audience-grid p { color: #a6aab1; line-height: 1.75; font-size: .94rem; }
.os-workflow { margin-top: 64px; scroll-margin-top: 90px; border: 1px solid rgba(255,255,255,.16); border-radius: 12px; background: #090b0f; box-shadow: 0 24px 90px rgba(0,0,0,.4); overflow: hidden; }
.os-workflow-top { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 22px 28px; border-bottom: 1px solid var(--line); }
.os-workflow-top h3 { font-size: .94rem; font-weight: 510; }
.os-example-label { color: #a6aab1; font: .68rem/1.6 var(--mono); }
.os-workflow-top .os-example-label { white-space: nowrap; }
.os-workflow-tabs { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); border-bottom: 1px solid var(--line); }
.os-workflow-tabs[hidden], .os-workflow-panel[hidden] { display: none; }
.os-workflow-tabs button { background: transparent; color: #a6aab1; border: 0; border-bottom: 2px solid transparent; padding: 20px 16px; cursor: pointer; font: 510 .9rem var(--display); min-height: 48px; }
.os-workflow-tabs button span { font: .68rem var(--mono); margin-right: 13px; color: #828994; }
.os-workflow-tabs button[aria-selected="true"] { color: #fff; border-bottom-color: #3b82f6; background: linear-gradient(0deg,rgba(59,130,246,.1),transparent); }
.os-workflow-tabs button:hover { color: #fff; background-color: #11151c; }
.os-workflow-tabs button:focus-visible { outline: 2px solid var(--accent); outline-offset: -5px; }
.os-workflow-panel { display: grid; grid-template-columns: .95fr 1.05fr; gap: 48px; align-items: center; padding: 46px; min-height: 338px; }
.os-workflow-copy h4 { font-size: clamp(1.55rem,2.4vw,2rem); line-height: 1.2; font-weight: 510; letter-spacing: -.035em; margin: 16px 0; }
.os-workflow-copy > p:last-child { color: #a6aab1; font-size: .94rem; line-height: 1.75; }
.os-record { border: 1px solid #2c3543; border-radius: 8px; background: linear-gradient(145deg,#121924,#0d1118 65%); padding: 24px; box-shadow: 0 12px 32px #0006; }
.os-record-head { display: flex; align-items: center; gap: 12px; }
.os-record-mark { display: grid; place-items: center; border: 1px solid #3f5f8c; width: 40px; height: 44px; color: #90baff; font: 510 1.1rem var(--display); }
.os-record-head strong { display: block; font-size: .95rem; font-weight: 510; }
.os-record-head div > span { color: #a6aab1; font-size: .75rem; }
.os-record-dot { margin-left: auto; width: 6px; height: 6px; border-radius: 50%; background: #83adf3; }
.os-record-path { margin: 28px 0 22px; color: #b9d3ff; font: .79rem/1.6 var(--mono); }
.os-record dl { border-top: 1px solid #293240; padding-top: 8px; }
.os-record dl > div { display: flex; justify-content: space-between; gap: 18px; padding-top: 12px; font-size: .73rem; }
.os-record dt { color: #949fac; }.os-record dd { text-align: right; margin: 0; color: #d0d7e2; }
.os-automation-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 80px; align-items: center; }
.os-automation-note { color: #a6aab1; margin-top: 24px; font-size: .9rem; line-height: 1.7; }
.os-automation-list > div { display: flex; gap: 20px; align-items: flex-start; padding: 29px 0; border-top: 1px solid var(--line-strong); }
.os-automation-list h3 { font-size: 1.12rem; font-weight: 510; margin-bottom: 10px; }
.os-automation-list p { color: #a6aab1; font-size: .93rem; line-height: 1.7; }
.os-flow-arrow { margin-left: auto; color: #83adf3; font-size: 1.25rem; }
.os-intake-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 28px; }
.os-intake-grid article { border-top: 1px solid var(--line-strong); padding-top: 25px; }
.os-intake-grid h3 { font-size: 1rem; line-height: 1.45; font-weight: 510; margin-bottom: 13px; }
.os-intake-grid p { color: #a6aab1; font-size: .92rem; line-height: 1.75; }
.os-reading { margin-top: 36px; border-top: 1px solid var(--line); padding-top: 22px; }
.os-reading summary { color: #c6cbd2; font-size: .84rem; cursor: pointer; min-height: 44px; }
.os-reading p { color: #a6aab1; max-width: 800px; font-size: .9rem; line-height: 1.8; margin-top: 10px; }
body.os .os-showcase { isolation: isolate; }
.os-showcase::before { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg,transparent,#000 18%,#000 90%,transparent); pointer-events: none; }
.os-showcase .hero-phase > .os-example-label { margin-bottom: 18px; }
.os-showcase-grid { border-bottom: 1px solid var(--line); }
.os-engine-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 70px; margin-top: 44px; }
.os-engine-grid h3 { font-size: 1.3rem; font-weight: 510; letter-spacing: -.025em; margin: 15px 0; }
.os-engine-grid article > p:last-child { color: #a6aab1; font-size: .95rem; line-height: 1.75; }
.os-engine-note { color: #a6aab1; font-size: .8rem; margin-top: 26px; }
.os-api-compact { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.os-api-compact > div > p:not(.eyebrow) { color: #b7bec9; line-height: 1.8; font-size: 1rem; margin-bottom: 26px; }
body.os #api { isolation: isolate; }
body.os #api::before { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg,transparent,#000d 20%,#000d 80%,transparent); }
body.os .cta-final h2 { font-size: clamp(2.2rem,4vw,3.6rem); letter-spacing: -.045em; }
@media (max-width: 1060px) {
  .os-automation-grid, .os-api-compact { gap: 40px; }
  .os-intake-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 32px; }
  .os-workflow-panel { padding: 30px; gap: 30px; }
}
@media (max-width: 760px) {
  .os-capability-grid, .os-audience-grid { grid-template-columns: 1fr; gap: 12px; }
  .os-capability h3, .os-audience-grid h3 { margin-top: 12px; }
  .os-workflow-top { align-items: flex-start; flex-direction: column; gap: 8px; padding: 20px; }
  .os-workflow-panel, .os-automation-grid, .os-api-compact, .os-engine-grid { grid-template-columns: 1fr; gap: 30px; }
  .os-workflow { margin-top: 38px; }
  .os-workflow-panel { padding: 25px 20px; }
  .os-workflow-copy { min-height: 170px; }
  .os-workflow-tabs button { font-size: .8rem; padding: 16px 4px; }
  .os-workflow-tabs button span { display: block; margin: 0 0 6px; }
  .os-record { padding: 20px; }
  .os-record-path { font-size: .72rem; }
  .os-section-heading { margin-bottom: 34px; }
  .os-section-lede { font-size: 1rem; }
  .os-engine-grid { gap: 35px; }
  .os-api-compact h2 { margin-bottom: 0; }
}
@media (max-width: 420px) {
  .os-intake-grid { grid-template-columns: 1fr; gap: 26px; }
  .os-record dl > div { flex-direction: column; gap: 5px; }
  .os-record dd { text-align: left; }
  .os-hero-proof { font-size: .67rem; gap: 8px 14px; }
}