:root {
  font-family: system-ui, sans-serif;
  color: #14242c;
  background: #f2f6f5;
  line-height: 1.5;
}

* { box-sizing: border-box; }
body { margin: 0; }
[hidden] { display: none !important; }
.shell { width: min(100% - 2rem, 68rem); margin-inline: auto; }
.topbar { background: #102b2b; color: #fff; }
.brand { display: flex; align-items: center; gap: .65rem; padding-block: .8rem; font-weight: 750; }
.brand-mark { display: grid; place-items: center; background: #c9f57d; color: #102b2b; width: 2rem; height: 2rem; border-radius: .5rem; }
.badge { margin-inline-start: auto; background: #375151; padding: .2rem .6rem; border-radius: 2rem; font-size: .8rem; }
.intro { padding-block: clamp(1.5rem, 5vw, 3.25rem) 1.5rem; }
.eyebrow { color: #1d6452; font-weight: 750; font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; }
h1, h2, h3, p { margin: 0; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); letter-spacing: -.04em; line-height: 1.12; margin-block: .35rem .55rem; }
h2 { font-size: 1.25rem; }
.intro > p:last-child, .hint { color: #43565e; }
.workspace { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); align-items: start; gap: 1.25rem; padding-bottom: 2rem; }
.panel { background: white; border: 1px solid #dbe5e1; border-radius: 1rem; padding: clamp(1rem, 3vw, 1.5rem); }
form { display: grid; gap: .9rem; margin-top: 1rem; }
label, legend { font-weight: 650; font-size: .9rem; }
input { display: block; width: 100%; margin-top: .25rem; min-height: 2.75rem; padding: .5rem .65rem; border: 1px solid #9aacaa; border-radius: .45rem; background: #fcfdfd; color: inherit; font: inherit; font-size: 1rem; font-weight: 400; }
fieldset { min-width: 0; border: 0; margin: 0; padding: 0; }
.hint { font-size: .85rem; }
fieldset .hint { margin-bottom: .35rem; }
.pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem; }
details { border-block: 1px solid #dbe5e1; padding-block: .6rem; }
summary { cursor: pointer; font-size: .9rem; font-weight: 650; }
.details-fields { display: grid; gap: .6rem; padding-block: .6rem; }
button { min-height: 2.75rem; padding: .45rem .8rem; border: 1px solid #21654f; border-radius: .5rem; color: #185641; background: white; font: inherit; font-weight: 700; cursor: pointer; }
.primary { background: #1b604b; color: white; }
button:hover { box-shadow: inset 0 0 0 2px currentColor; }
:focus-visible { outline: 3px solid #196ec0; outline-offset: 3px; }
.status { color: #175743; font-size: .9rem; }
.status:empty { display: none; }
.section-header, .route-header { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: .4rem .75rem; }
.empty { border: 1px dashed #96aaa3; background: #f6faf8; color: #43565e; border-radius: .65rem; padding: 1rem; margin-top: 1rem; }
.routes { display: grid; gap: .65rem; margin: 1rem 0 0; padding: 0; list-style: none; }
.routes:empty { display: none; }
.routes li { border: 1px solid #dbe5e1; background: #f6faf8; border-radius: .65rem; padding: .8rem; }
.route-name { font-size: 1rem; overflow-wrap: anywhere; min-width: 0; }
.hourly { color: #175743; font-size: 1.15rem; font-variant-numeric: tabular-nums; }
.net { font-size: .9rem; margin-top: .45rem; }
.footnote { margin-top: .75rem; }
.auth-shell { width: min(100% - 2rem, 29rem); padding-block: 2rem; }
.auth-panel { display: grid; gap: .8rem; }
.auth-panel form { margin-top: 0; }
.auth-status { color: #43565e; }
.auth-button { display: grid; place-items: center; min-height: 2.75rem; padding: .5rem; border-radius: .5rem; background: #1b604b; color: white; font-weight: 700; text-decoration: none; }

.driver-ui { min-height: 100vh; background: #101513; color: #f4f7f5; color-scheme: dark; }
.driver-ui .topbar { background: #131b18; border-bottom: 1px solid #31423a; }
.driver-shell { max-width: 38rem; padding-bottom: 2rem; }
.route-nav, .route-heading { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .65rem; }
.route-nav { padding-block: .65rem; }
.driver-ui a { color: #a7e9bc; }
.driver-ui form { margin: 0; }
.route-card { display: grid; gap: .85rem; margin-block: .75rem; padding: 1rem; border: 1px solid #3b4b42; border-radius: .85rem; background: #171f1b; }
.route-card h1 { margin: 0; font-size: 1.75rem; }
.route-card p, .timeline span, .route-history span { color: #c1d0c6; }
.route-badge { color: #a7e9bc; background: #244433; padding: .2rem .55rem; border-radius: 1rem; font-size: .85rem; }
.clock { display: grid; justify-items: center; background: #27342d; padding: .85rem; border-radius: .7rem; }
.clock strong { font-size: clamp(2.25rem, 10vw, 3.25rem); font-variant-numeric: tabular-nums; }
.metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .55rem; margin: 0; }
.metric-grid div { border: 1px solid #3b4b42; border-radius: .55rem; padding: .65rem; }
.metric-grid dt, .metric-grid small { display: block; color: #c1d0c6; font-size: .82rem; }
.metric-grid dd { margin: .2rem 0 0; font-weight: 700; overflow-wrap: anywhere; }
.metric-grid small { font-weight: normal; }
.timeline, .route-history { display: grid; gap: .4rem; padding: 0; margin: 0; list-style: none; }
.timeline li, .route-history li { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: .45rem; min-height: 2.75rem; }
.route-history li { padding-block: .5rem; border-bottom: 1px solid #3b4b42; }
.driver-ui input, .driver-ui select, .driver-ui textarea { width: 100%; min-height: 2.75rem; color: #f4f7f5; border: 1px solid #6b8173; background: #101513; border-radius: .45rem; padding: .5rem; font: inherit; }
.driver-ui button { color: #eff9f2; border-color: #67977a; background: #244433; }
.driver-ui .plain { background: transparent; }
.driver-ui .main-action { min-height: 3.25rem; width: 100%; background: #a7e9bc; color: #10271a; border-color: #a7e9bc; }
.driver-ui details { border-color: #3b4b42; }
.route-link { display: grid; place-items: center; min-height: 2.75rem; }
.route-message { padding: .5rem .75rem; border-left: 3px solid #a7e9bc; background: #25382d; }
.send-status { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; }
.send-status:focus { outline: 2px solid #a7e9bc; }

@media (max-width: 46rem) {
  .workspace { grid-template-columns: 1fr; }
}