.os-feature {
  --os-muted: #b9b9bf;
  --os-line: #ffffff29;
  --os-blue: #2997ff;
  padding: 82px 0 86px;
  background: #1b1b1b;
  color: #ffffff;
}

.os-feature .section-index {
  color: #d2d2d7;
  border-color: var(--os-line);
  margin-bottom: 66px;
}

.os-feature-intro {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 65px;
  align-items: end;
  margin-bottom: 66px;
}

.os-feature-intro h2 {
  margin: 0;
  font-size: clamp(48px, 6vw, 88px);
  line-height: 1.04;
  letter-spacing: -.065em;
}

.os-feature-intro p {
  max-width: 405px;
  margin: 0 0 17px;
  font-size: 17px;
  color: var(--os-muted);
}

.os-feature-intro p:first-child { color: #fff; font-size: 20px; line-height: 1.4; }
.os-feature-intro p:last-child { margin-bottom: 0; }
.os-feature-intro strong { color: #fff; font-weight: 500; }

.os-experience {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.os-network { min-width: 0; margin: 0; padding: 28px 0; border-block: 1px solid var(--os-line); }
.os-workflow { min-width: 0; padding: 30px; background: #252527; border: 1px solid #ffffff30; border-radius: 12px; }
.os-network-heading { display: flex; justify-content: space-between; gap: 20px; color: #d2d2d7; font: 9px/1.5 monospace; letter-spacing: .06em; }
.os-concept-label { color: var(--os-muted); text-align: right; }
.os-network-map { position: relative; width: 100%; aspect-ratio: 1.35; max-height: 530px; min-height: 360px; margin-top: 16px; }
.os-network-lines { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.os-route { stroke: #5e5e63; stroke-width: 1; vector-effect: non-scaling-stroke; transition: stroke .3s; }
.os-route.is-active { stroke: var(--os-blue); stroke-width: 1.5; }

.os-network-node {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  transform: translate(-50%, -50%);
  padding: 15px 11px;
  background: #1b1b1b;
  border: 1px solid #545459;
  min-width: 146px;
  color: var(--os-muted);
  transition: color .3s, border-color .3s;
}

.os-network-node svg { width: 23px; height: 23px; flex: none; }
.os-network-node strong { display: block; font-size: 15px; font-weight: 500; letter-spacing: -.025em; }
.os-network-node span { display: block; margin-top: 5px; font-size: 9px; white-space: nowrap; }
.os-network-node i { position: absolute; width: 4px; height: 4px; background: #86868b; right: 7px; top: 7px; }
.os-network-node.is-active { border-color: var(--os-blue); color: white; }
.os-network-node.is-active i { background: var(--os-blue); }
.os-network-fleet { left: 17%; top: 20%; }
.os-network-energy { left: 83%; top: 20%; }
.os-network-hubs { left: 17%; top: 68%; }
.os-network-teams { left: 83%; top: 68%; }
.os-network-record { left: 50%; top: 87%; }

.os-network-core {
  position: absolute;
  left: 50%;
  top: 43%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  width: 190px;
  height: 122px;
  border: 1px solid #d2d2d7;
  background: #1b1b1b;
  box-shadow: 0 0 0 7px #1b1b1b, 0 0 0 8px #ffffff18;
}

.os-core-marker { display: block; width: 23px; height: 3px; background: linear-gradient(90deg, #0071e3, #30d158); margin-bottom: 14px; }
.os-feature-lockup { color: white; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; font-size: 29px; line-height: 1; letter-spacing: -1.3px; white-space: nowrap; }
.os-feature-lockup b { margin-right: .12em; font-family: 'Arial Black', Arial, sans-serif; font-weight: 900; letter-spacing: -1.9px; }
.os-network-core small { font: 7px monospace; letter-spacing: .08em; margin-top: 14px; color: #d2d2d7; }
.os-network figcaption { display: flex; align-items: flex-start; gap: 9px; min-height: 34px; margin-top: 10px; color: var(--os-muted); font: 10px/1.7 monospace; }
.os-diagram-key { flex: none; width: 5px; height: 5px; margin-top: 6px; border-radius: 50%; background: var(--os-blue); }

.os-scenario { padding: 0; }
.os-scenario-kicker { display: block; font: 9px/1.5 monospace; letter-spacing: .07em; color: var(--os-muted); margin-bottom: 35px; }
.os-scenario>h3 { font-size: clamp(28px, 3vw, 43px); letter-spacing: -.045em; line-height: 1.09; margin-bottom: 18px; }
.os-scenario-lead { color: var(--os-muted); font-size: 14px; max-width: 315px; margin-bottom: 24px; }
.os-scenario-controls { border-top: 1px solid var(--os-line); }
.os-scenario-controls[hidden] { display: none; }
.os-scenario-controls button { display: flex; width: 100%; align-items: center; gap: 15px; padding: 17px 12px 17px 0; border: 0; border-bottom: 1px solid var(--os-line); background: transparent; color: var(--os-muted); text-align: left; cursor: pointer; transition: color .2s, padding .2s, background .2s; font-size: 14px; }
.os-scenario-controls button:hover { color: white; }
.os-scenario-controls button[aria-selected='true'] { color: #fff; padding-left: 14px; background: #0071e32e; box-shadow: inset 2px 0 #2997ff; }
.os-step-number { color: #b9b9bf; font: 10px monospace; }
.os-step-arrow { margin-left: auto; font-size: 21px; opacity: 0; }
.os-scenario-controls button[aria-selected='true'] .os-step-arrow { opacity: 1; color: var(--os-blue); }
.os-scenario-controls button[aria-selected='true'] .os-step-number { color: var(--os-blue); }
.os-feature a:focus-visible, .os-feature button:focus-visible, .os-scenario-panel:focus-visible { outline: 2px solid #fff; outline-offset: 5px; }

.os-scenario-panels { margin-top: 26px; }
.os-scenario-panel { align-content: start; display: grid; grid-template-columns: 1fr; gap: 20px; padding-block: 4px; }
.os-scenario-panel[hidden] { display: none; }
.os-scenario-panel+.os-scenario-panel { border-top: 1px solid var(--os-line); }
.os-experience.is-enhanced .os-scenario-panel { border-top: 0; min-height: 270px; }
.os-panel-index { display: block; font: 10px monospace; color: var(--os-muted); margin-bottom: 16px; }
.os-panel-title h3 { font-size: clamp(24px, 2.6vw, 34px); max-width: 510px; margin: 0; letter-spacing: -.04em; line-height: 1.15; }
.os-panel-body p { color: var(--os-muted); font-size: 14px; margin: 0 0 20px; max-width: 560px; }
.os-panel-connection { display: block; font: 10px/1.7 monospace; color: #d2d2d7; }

.os-feature-outro { display: flex; align-items: center; justify-content: space-between; gap: 35px; padding-top: 37px; }
.os-feature-outro p { color: var(--os-muted); font-size: 18px; line-height: 1.45; margin: 0; letter-spacing: -.02em; }
.os-feature-outro strong { color: white; font-weight: 500; }
.os-feature-outro .text-link { font-size: 12px; border-color: #ffffff60; flex-shrink: 0; }
.os-feature-outro .text-link:hover { color: #2997ff; }
.os-development-note { margin: 32px 0 0; font: 9px/1.7 monospace; color: var(--os-muted); }

@media (max-width: 1100px) {
  .os-feature-intro { gap: 40px; grid-template-columns: 1.3fr 1fr; }
  .os-feature-intro h2 { font-size: 58px; }
  .os-feature-intro p { font-size: 15px; }
  .os-network { padding-right: 23px; }
  .os-network-node { min-width: 122px; padding: 14px 8px; gap: 6px; }
  .os-network-node svg { width: 19px; height: 19px; }
  .os-network-node strong { font-size: 13px; }
  .os-network-node span { font-size: 8px; }
  .os-network-core { width: 154px; height: 112px; }
  .os-feature-lockup { font-size: 25px; }
  .os-network-heading { font-size: 8px; gap: 15px; }
  .os-workflow { padding: 24px; }
  .os-scenario-kicker { font-size: 8px; margin-bottom: 29px; }
  .os-scenario-controls button { font-size: 12px; }
  .os-panel-body p { font-size: 13px; }
  .os-scenario-panel { gap: 20px; }
}

@media (max-width: 800px) {
  .os-feature { padding-block: 56px; }
  .os-feature .section-index { margin-bottom: 40px; }
  .os-feature-intro { grid-template-columns: 1fr; gap: 28px; margin-bottom: 35px; }
  .os-feature-intro h2 { font-size: clamp(42px, 8.5vw, 63px); }
  .os-feature-intro p { max-width: 540px; }
  .os-feature-intro p:first-child { font-size: 19px; }
  .os-experience { grid-template-columns: 1fr; gap: 40px; }
  .os-network { padding: 22px 0; }
  .os-network-heading { font-size: 8px; }
  .os-network-map { max-width: 570px; margin: 10px auto 0; min-height: 345px; aspect-ratio: 1.3; }
  .os-network-node { min-width: 135px; padding: 14px 10px; gap: 8px; }
  .os-network-node strong { font-size: 14px; }
  .os-network-node span { font-size: 8px; }
  .os-network-core { width: 165px; }
  .os-network figcaption { min-height: 0; font-size: 9px; margin-top: 2px; }
  .os-scenario { padding: 0; }
  .os-scenario-kicker { margin-bottom: 18px; }
  .os-scenario>h3 { font-size: 34px; }
  .os-scenario>h3 br { display: none; }
  .os-scenario-lead { font-size: 14px; max-width: 420px; margin-bottom: 25px; }
  .os-scenario-controls { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--os-line); }
  .os-scenario-controls button { font-size: 12px; padding: 17px 12px; min-height: 62px; gap: 9px; }
  .os-scenario-controls button:nth-child(odd) { border-right: 1px solid var(--os-line); }
  .os-scenario-controls button:nth-last-child(-n+2) { border-bottom: 0; }
  .os-step-arrow { font-size: 18px; }
  .os-scenario-controls button[aria-selected='true'] { padding-left: 12px; }
  .os-scenario-panels { border-top: 0; }
  .os-scenario-panel { grid-template-columns: 1fr; gap: 19px; padding: 0; }
  .os-experience.is-enhanced .os-scenario-panel { min-height: 252px; }
  .os-panel-title h3 { font-size: 27px; max-width: 530px; }
  .os-panel-index { font-size: 9px; margin-bottom: 13px; }
  .os-panel-body p { font-size: 14px; }
  .os-panel-connection { font-size: 9px; }
  .os-feature-outro { display: block; padding-top: 27px; }
  .os-feature-outro p { font-size: 17px; }
  .os-feature-outro .text-link { margin-top: 19px; }
  .os-development-note { font-size: 9px; margin-top: 25px; }
}

@media (max-width: 430px) {
  .os-workflow { padding: 24px 18px; }
  .os-feature .section-index { font-size: 8px; }
  .os-feature .section-index span:last-child { max-width: 165px; }
  .os-feature-intro h2 { font-size: 41px; }
  .os-network-map { min-height: 350px; }
  .os-network-node { min-width: 108px; padding: 12px 7px; gap: 6px; }
  .os-network-node svg { width: 18px; height: 18px; }
  .os-network-node strong { font-size: 12px; }
  .os-network-node span { font-size: 7px; }
  .os-network-core { width: 146px; height: 103px; }
  .os-feature-lockup { font-size: 24px; }
  .os-network-core small { font-size: 6px; }
  .os-core-marker { margin-bottom: 12px; }
  .os-scenario>h3 { font-size: 31px; }
  .os-scenario-controls button { font-size: 11px; gap: 7px; padding-inline: 8px; }
  .os-scenario-controls button[aria-selected='true'] { padding-left: 8px; }
  .os-step-number { font-size: 8px; }
  .os-step-arrow { font-size: 16px; }
  .os-experience.is-enhanced .os-scenario-panel { min-height: 295px; }
}

@media (prefers-reduced-motion: reduce) {
  .os-route, .os-network-node, .os-scenario-controls button { transition: none; }
}

@media print {
  .os-feature { background: #fff; color: #000; padding-block: 30px; }
  .os-network, .os-scenario-controls, .os-development-note { display: none; }
  .os-feature-intro, .os-experience, .os-scenario-panel { display: block; }
  .os-scenario-panel[hidden] { display: block; }
  .os-feature p, .os-feature strong, .os-panel-index, .os-panel-connection { color: #333; }
  .os-feature h2 { font-size: 35px; }
  .os-scenario { border: 0; padding: 0; }
}