:root {
  --ink: #1c1a17; --muted: #6e675f; --line: #e3ddd4; --paper: #f7f3ec; --accent: #b4472b;
  --serif: "Fraunces", Georgia, serif; --sans: "Inter", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 var(--sans); }
a { color: var(--accent); }
button { font: inherit; cursor: pointer; }

.hero { position: relative; min-height: 92vh; display: grid; grid-template-columns: 1fr minmax(0, 640px); }
.hero-photo { background: #222 url("img/crowd.jpg") center / cover no-repeat; min-height: 40vh; }
.hero-inner { padding: 72px 56px 56px; align-self: center; }
.eyebrow { font-size: .78rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); margin: 0 0 18px; }
h1 { font: 700 clamp(2.6rem, 5vw, 4.4rem)/1.04 var(--serif); margin: 0 0 22px; letter-spacing: -.01em; }
.lead { color: var(--muted); max-width: 52ch; margin: 0 0 36px; }

.brief { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px 16px; border-top: 1px solid var(--line); padding-top: 28px; }
.brief label { display: grid; gap: 6px; font-size: .8rem; color: var(--muted); }
.brief .wide { grid-column: 1 / -1; }
.brief input, .brief select { font: inherit; color: var(--ink); background: transparent; border: 0; border-bottom: 1px solid #c9c1b5; padding: 8px 0; border-radius: 0; }
.brief input:focus, .brief select:focus { outline: none; border-bottom-color: var(--ink); }
.brief button { grid-column: 1 / -1; justify-self: start; margin-top: 10px; padding: 14px 26px; background: var(--ink); color: var(--paper); border: 0; border-radius: 999px; }
.examples { margin-top: 22px; font-size: .85rem; color: var(--muted); }
.examples button { background: none; border: 0; border-bottom: 1px solid var(--line); padding: 2px 0; margin: 0 10px 6px 0; color: var(--ink); }

.board { display: grid; grid-template-columns: minmax(0, 1fr) 360px; border-top: 1px solid var(--line); }
#map { height: 560px; background: #e9e4dc; }
.agent { padding: 28px; border-left: 1px solid var(--line); max-height: 560px; overflow: auto; }
.agent h2, .plan h3 { font: 600 .78rem/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 0 0 18px; }
#log { list-style: none; margin: 0; padding: 0; counter-reset: s; }
#log li { position: relative; padding: 0 0 14px 26px; font-size: .92rem; }
#log li::before { content: ""; position: absolute; left: 6px; top: 9px; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
#log li.think { color: var(--muted); font-style: italic; }
#log li.think::before, #log li.note::before { background: #c9c1b5; }
#log li.bad::before { background: #999; }
#log li.busy { color: var(--muted); }
#log li.busy::before { animation: pulse 1s infinite alternate; }
@keyframes pulse { to { opacity: .2; } }

.plan { padding: 88px 56px 40px; max-width: 1180px; margin: 0 auto; }
.plan h2 { font: 700 clamp(2rem, 3.6vw, 3.2rem)/1.08 var(--serif); margin: 0 0 32px; max-width: 22ch; }
.profile { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-bottom: 48px; }
.profile div { padding: 18px 20px 18px 0; }
.profile .k { display: block; font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: .1em; }
.profile .v { font: 500 1.15rem/1.3 var(--serif); }
.stops { list-style: none; padding: 0; margin: 0; }
.stops li { display: grid; grid-template-columns: 110px 1fr; gap: 24px; padding: 34px 0; border-top: 1px solid var(--line); }
.stops .n { font: 700 3.4rem/1 var(--serif); color: var(--accent); }
.stops h3 { font: 700 1.9rem/1.1 var(--serif); margin: 0 0 10px; letter-spacing: 0; text-transform: none; color: var(--ink); }
.stops h3 small { font: 400 .85rem var(--sans); color: var(--muted); margin-left: 10px; }
.why { font-size: 1.05rem; max-width: 60ch; margin: 0 0 18px; }
dl { display: grid; grid-template-columns: 150px 1fr; gap: 6px 16px; margin: 0 0 16px; font-size: .95rem; }
dt { color: var(--muted); } dd { margin: 0; } dd small { display: block; color: var(--muted); }
.mail { font-size: .9rem; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; border-top: 1px solid var(--line); padding-top: 34px; }

.trace { padding: 24px 56px 64px; max-width: 1180px; margin: 0 auto; }
.trace summary { cursor: pointer; color: var(--muted); font-size: .9rem; }
.trace table { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: .8rem; }
.trace th, .trace td { text-align: left; padding: 8px 10px 8px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.trace code { font-size: .78rem; word-break: break-all; }
footer { padding: 32px 56px; border-top: 1px solid var(--line); font-size: .8rem; color: var(--muted); }

@media (max-width: 900px) {
  .hero, .board { grid-template-columns: 1fr; }
  .hero-inner, .plan, .trace, footer { padding-left: 16px; padding-right: 16px; }
  .brief { grid-template-columns: 1fr 1fr; }
  .agent { border-left: 0; border-top: 1px solid var(--line); max-height: none; }
  #map { height: 380px; }
  .profile, .two { grid-template-columns: 1fr; }
  .stops li { grid-template-columns: 1fr; gap: 6px; }
  dl { grid-template-columns: 1fr; }
}

/* OpenStreetMap tiles toned down to sit behind the data */
.osm-tiles { filter: grayscale(1) contrast(.9) brightness(1.05); }

.model { margin: -6px 0 12px; font-size: .85rem; color: var(--muted); }
dd small.check { margin-top: 4px; }
dd small.check.ok a { color: inherit; }
dd small.check.warn { color: #9a5b00; }