/* Maintenance: where work orders come from (maintenance.js), their SLA, and what else the crews get. */
.upkeep-section { --upkeep-gutter: 20px; padding-block: 35px 36px; border-bottom: 1px solid var(--line); scroll-margin-top: 16px; }
.upkeep-heading { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(0,1fr); align-items: start; gap: 18px 48px; padding: 0 var(--upkeep-gutter) 30px; border-inline: 1px solid #d7d7d4; }
.upkeep-heading>.eyebrow { grid-column: 1 / -1; font-size: 11px; color: #6b767e; letter-spacing: .04em; line-height: 1.5; }
.upkeep-heading h2 { font-size: clamp(30px,2.5vw,40px); line-height: 1.12; font-weight: 500; letter-spacing: -1.1px; margin: 0; }
.upkeep-summary p { font-size: 15px; line-height: 1.75; color: #637079; margin: 0; max-width: 650px; }
.upkeep-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; font-size: 12px; line-height: 1.4; color: #7a3510; }
.upkeep-tags>span { padding: 6px 9px; border: 1px solid #f6dcc4; border-radius: 3px; background: #fff6ee; }
.upkeep-label { display: block; font-size: 10px; letter-spacing: .05em; color: #6f7880; }

.upkeep-flow { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.55fr); gap: 28px; padding: 0 var(--upkeep-gutter); border: 1px solid #d7d7d4; border-bottom: 0; }
.upkeep-sources { min-width: 0; padding-block: 20px 8px; }
.upkeep-sources>.upkeep-label { padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.upkeep-sources>button { display: flex; gap: 16px; width: 100%; padding: 16px 12px 16px 14px; border: 0; border-bottom: 1px solid var(--line); border-left: 2px solid transparent; border-radius: 0; background: transparent; text-align: left; transition: background .2s, border-color .2s; }
.upkeep-sources>button:hover { background: #fafaf8; }
.upkeep-sources>button[aria-pressed="true"] { border-left-color: var(--accent); background: #fffaf5; }
.upkeep-source-number { flex-shrink: 0; min-width: 20px; padding-top: 4px; font-size: 10px; color: #8a959d; }
.upkeep-sources strong { display: block; font-size: 17px; font-weight: 500; line-height: 1.4; letter-spacing: -.3px; color: #737373; transition: color .2s; }
.upkeep-sources>button:hover strong, .upkeep-sources>button[aria-pressed="true"] strong { color: var(--ink); }
.upkeep-sources small { display: block; margin-top: 6px; font-size: 13px; line-height: 1.65; color: #7a858d; }

/* Each source takes one of the use-case card colours; the night patrol stays dark. */
.upkeep-stage { --stage-bg: #b9bfdc; --stage-ink: #1f2a4a; position: relative; isolation: isolate; min-width: 0; margin-block: 20px; padding: 54px 36px 58px; background: var(--stage-bg); color: var(--stage-ink); border-radius: 3px; transition: background-color .38s cubic-bezier(.22,.61,.36,1), color .3s; }
.upkeep-stage::before { content: ''; position: absolute; inset: 0; z-index: -1; border-radius: inherit; opacity: .65; background-image: linear-gradient(#21352b0d 1px,transparent 1px),linear-gradient(90deg,#21352b0d 1px,transparent 1px); background-size: 23px 23px; }
.upkeep-stage[data-source="patrol"] { --stage-bg: #1d2b4f; --stage-ink: #c9d3e6; }
.upkeep-stage[data-source="patrol"]::before { background-image: linear-gradient(#ffffff0d 1px,transparent 1px),linear-gradient(90deg,#ffffff0d 1px,transparent 1px); }
.upkeep-stage[data-source="preventive"] { --stage-bg: #c6c7b9; --stage-ink: #353b2e; }
.upkeep-stage[data-source="telemetry"] { --stage-bg: #b6d3e0; --stage-ink: #263e4a; }
.upkeep-stage[data-source="manual"] { --stage-bg: #fc8a4c; --stage-ink: #4a2b19; }
.upkeep-stage-label { position: absolute; top: 19px; left: 22px; right: 22px; display: flex; justify-content: space-between; gap: 12px; font-size: 10px; letter-spacing: .05em; }
.upkeep-stage-note { position: absolute; bottom: 17px; left: 22px; right: 22px; margin: 0; font-size: 12px; line-height: 1.5; }

.wo-card { max-width: 600px; margin-inline: auto; padding: 22px 24px 8px; background: #fff; color: var(--ink); border: 1px solid #e7ebee; border-radius: 5px; box-shadow: 0 12px 28px -18px #1d2b4f80; }
.wo-card-top { display: flex; justify-content: space-between; gap: 16px; font-size: 11px; letter-spacing: .03em; color: #6f7880; }
.wo-card-top>span:first-child { color: var(--ink); font-weight: 700; }
.wo-card-top>span:last-child { text-align: right; }
.wo-card h3 { margin: 16px 0 4px; font-size: 26px; font-weight: 500; line-height: 1.25; letter-spacing: -.6px; }
.wo-asset { margin: 0; font-size: 14px; color: #69747c; }
.wo-lifecycle { display: grid; grid-template-columns: repeat(6,minmax(0,1fr)); gap: 4px; margin: 20px 0 0; padding: 0; list-style: none; }
.wo-lifecycle>li { padding-top: 8px; border-top: 3px solid #e6e6e3; font-size: 11px; line-height: 1.4; color: #9aa4ab; transition: border-color .3s, color .3s; }
.wo-lifecycle>li[data-state="done"] { border-color: var(--accent); color: #69747c; }
.wo-lifecycle>li[data-state="current"] { border-color: var(--accent-ink); color: var(--ink); font-weight: 700; }
.wo-meta { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; margin: 20px 0 0; padding-block: 14px; border-block: 1px solid var(--line); }
.wo-meta dt { font-size: 9px; letter-spacing: .05em; color: #6f7880; }
.wo-meta dd { margin: 5px 0 0; font-size: 14px; }
.wo-history { padding-top: 14px; }
.wo-history ol { margin: 10px 0 0 4px; padding: 0 0 0 16px; list-style: none; border-left: 1px solid var(--line); }
.wo-history li { position: relative; padding-bottom: 9px; font-size: 13px; line-height: 1.5; color: #4f5961; }
.wo-history li::before { content: ''; position: absolute; top: 6px; left: -20px; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.wo-card-link { display: flex; justify-content: space-between; gap: 16px; margin-top: 6px; padding-block: 13px; border-top: 1px solid var(--line); font-size: 13px; color: var(--accent-ink); }
.wo-card-link:hover>span:first-child { text-decoration: underline; text-underline-offset: 3px; }

.upkeep-sla { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.55fr); gap: 28px; align-items: center; padding: 20px var(--upkeep-gutter); border: 1px solid #d7d7d4; border-bottom: 0; }
.upkeep-sla p { margin: 8px 0 0; font-size: 13px; line-height: 1.7; color: #69747c; max-width: 420px; }
.upkeep-sla dl { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 10px; margin: 0; }
.upkeep-sla dl>div { padding-top: 10px; border-top: 3px solid var(--sla); }
.upkeep-sla dt { font-size: 13px; color: #4f5961; }
.upkeep-sla dd { margin: 4px 0 0; font-size: 30px; font-weight: 500; letter-spacing: -.8px; font-variant-numeric: tabular-nums; }
.sla-critical { --sla: #c2410c; }
.sla-high { --sla: var(--accent); }
.sla-normal { --sla: #fcd9b8; }
.sla-low { --sla: #dcdcd8; }

.upkeep-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); border: 1px solid #d7d7d4; }
.upkeep-grid>article { display: flex; flex-direction: column; min-width: 0; padding: 22px var(--upkeep-gutter) 24px; border-left: 1px solid var(--line); }
.upkeep-grid>article:nth-child(4n+1) { border-left: 0; }
.upkeep-grid>article:nth-child(n+5) { border-top: 1px solid var(--line); }
.upkeep-grid h3 { margin: 16px 0 8px; font-size: 18px; font-weight: 500; line-height: 1.35; letter-spacing: -.3px; }
.upkeep-grid p { margin: 0; font-size: 14px; line-height: 1.7; color: #69747c; }
.upkeep-grid a { display: flex; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 16px; font-size: 12px; color: var(--accent-ink); }
.upkeep-grid a span { transition: transform .18s; }
.upkeep-grid a:hover span { transform: translate(2px,-2px); }

@media (max-width: 1100px) {
  .upkeep-section { --upkeep-gutter: 14px; }
  .upkeep-flow, .upkeep-sla { grid-template-columns: minmax(0,1fr) minmax(0,1.3fr); gap: 20px; }
  .upkeep-stage { padding-inline: 20px; }
  .upkeep-sources strong { font-size: 16px; }
}
@media (max-width: 800px) {
  .upkeep-heading { grid-template-columns: 1fr; gap: 16px; }
  .upkeep-heading h2 { font-size: 32px; }
  .upkeep-flow, .upkeep-sla { grid-template-columns: 1fr; gap: 0; }
  .upkeep-sources>button { padding-block: 13px; }
  .upkeep-sources>button[aria-pressed="false"] small { display: none; }
  .upkeep-sla dl { margin-top: 16px; }
  .upkeep-stage { margin-top: 4px; }
  .upkeep-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .upkeep-grid>article:nth-child(4n+1) { border-left: 1px solid var(--line); }
  .upkeep-grid>article:nth-child(2n+1) { border-left: 0; }
  .upkeep-grid>article:nth-child(n+3) { border-top: 1px solid var(--line); }
}
@media (max-width: 560px) {
  .upkeep-section { --upkeep-gutter: 12px; padding-block: 28px; }
  .upkeep-heading h2 { font-size: 29px; letter-spacing: -.7px; }
  .upkeep-summary p { font-size: 14px; }
  .upkeep-tags { gap: 6px; font-size: 11px; }
  .upkeep-sources>button { gap: 10px; padding-inline: 10px 6px; }
  .upkeep-stage { padding: 50px 10px 74px; }
  .upkeep-stage-label { left: 12px; right: 12px; font-size: 9px; }
  .upkeep-stage-note { left: 12px; right: 12px; font-size: 11px; }
  .wo-card { padding: 18px 16px 6px; }
  .wo-card-top { flex-direction: column; gap: 4px; }
  .wo-card-top>span:last-child { text-align: left; }
  .wo-card h3 { font-size: 22px; }
  .wo-lifecycle { grid-template-columns: repeat(3,minmax(0,1fr)); row-gap: 10px; }
  .wo-meta { grid-template-columns: 1fr 1fr; }
  .wo-meta>div:last-child { grid-column: 1 / -1; }
  .upkeep-sla dl { grid-template-columns: 1fr 1fr; row-gap: 16px; }
  .upkeep-grid { grid-template-columns: 1fr; }
  .upkeep-grid>article { border-left: 0 !important; }
  .upkeep-grid>article:nth-child(n+2) { border-top: 1px solid var(--line); }
}
@media (prefers-reduced-motion: reduce) {
  .upkeep-stage, .upkeep-sources>button, .upkeep-sources strong, .wo-lifecycle>li, .upkeep-grid a span { transition: none; }
}