:root {
  --bg: #f4f6f9; --panel: #fff; --ink: #1b2430; --muted: #5d6b7c; --line: #d9dfe7;
  --brand: #12355b; --accent: #1f6feb; --accent-ink: #fff; --good: #1a7f37; --warn: #9a6700; --bad: #c62828;
  --hi: #fff8c5; --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1419; --panel: #172029; --ink: #e6edf3; --muted: #9aa7b4; --line: #2d3a47;
    --brand: #8fb8e8; --accent: #4c8dff; --accent-ink: #fff; --good: #3fb950; --warn: #d29922; --bad: #ff6b6b; --hi: #3a3410; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.top { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 12px 16px; background: var(--panel); border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; color: var(--brand); }
nav { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
#who { color: var(--muted); font-size: 14px; }
main { max-width: 760px; margin: 24px auto; padding: 0 16px 64px; }
main.wide { max-width: 980px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
h1 { font-size: 24px; margin: 0 0 16px; }
h2 { font-size: 18px; margin: 0 0 12px; }
.step-count { color: var(--muted); font-size: 13px; margin-bottom: 6px; }
label { display: block; font-weight: 600; margin: 14px 0 6px; }
.hint { color: var(--muted); font-size: 14px; font-weight: 400; }
input, select { font: inherit; color: var(--ink); background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; width: 100%; }
input[type=checkbox], input[type=radio] { width: auto; }
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row > * { flex: 1 1 0; min-width: 0; }
.dims { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 8px; align-items: center; }
.dims span { color: var(--muted); }
button { font: inherit; cursor: pointer; border-radius: 8px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); padding: 10px 16px; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
button.link { border: 0; background: none; color: var(--accent); padding: 4px 0; }
button:disabled { opacity: .55; cursor: default; }
.choices { display: grid; gap: 10px; margin-top: 12px; }
.choices button { text-align: left; padding: 14px 16px; }
.choices button.on { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.checks label { display: flex; gap: 10px; align-items: center; font-weight: 400; margin: 10px 0; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; cursor: pointer; }
.actions { display: flex; justify-content: space-between; gap: 10px; margin-top: 24px; }
.error { color: var(--bad); font-size: 14px; margin-top: 6px; }
.errors { border: 1px solid var(--bad); border-radius: 8px; padding: 10px 14px; color: var(--bad); margin-bottom: 14px; }
.notice { border: 1px solid var(--warn); border-radius: 8px; padding: 10px 14px; margin-bottom: 12px; }
.line { border: 1px solid var(--line); border-radius: var(--radius); padding: 4px 16px 16px; margin-bottom: 14px; }
.line-head { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; font-weight: 700; }
.calc { color: var(--muted); font-size: 14px; margin-top: 10px; }
.suggest { position: relative; }
.suggest ul { position: absolute; z-index: 5; left: 0; right: 0; top: 100%; margin: 2px 0 0; padding: 4px 0; list-style: none;
  background: var(--panel); border: 1px solid var(--line); border-radius: 8px; max-height: 260px; overflow: auto; box-shadow: 0 6px 20px rgba(0,0,0,.15); }
.suggest li { padding: 8px 12px; cursor: pointer; }
.suggest li small { color: var(--muted); display: block; }
.suggest li[aria-selected=true], .suggest li:hover { background: var(--bg); }
.totals { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 6px 0 4px; }
.totals div { background: var(--bg); border-radius: 8px; padding: 10px; text-align: center; }
.totals b { display: block; font-size: 18px; }
.totals small { color: var(--muted); }
.summary { color: var(--muted); margin-bottom: 16px; }
.highlights { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-bottom: 18px; }
.highlight { text-align: left; padding: 14px 16px; border: 2px solid var(--accent); background: var(--panel); }
.highlight .tag { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); font-weight: 700; }
.highlight .price { font-size: 22px; font-weight: 700; }
.rate { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 12px; scroll-margin-top: 16px; }
.rate.flash { background: var(--hi); transition: background 1.5s; }
.rate.chosen { border-color: var(--good); box-shadow: 0 0 0 1px var(--good) inset; }
.rate-main { display: grid; grid-template-columns: 1fr auto auto; gap: 16px; align-items: center; }
.carrier { font-weight: 700; }
.svc { font-size: 13px; color: var(--muted); }
.badge { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 99px; border: 1px solid var(--good); color: var(--good); margin-left: 6px; }
.days { text-align: center; }
.days b { font-size: 20px; display: block; }
.total { font-size: 22px; font-weight: 700; text-align: right; }
.gtk { margin: 10px 0 0; padding-left: 18px; color: var(--warn); font-size: 14px; }
.detail { margin-top: 10px; font-size: 14px; }
.detail table { border-collapse: collapse; width: 100%; max-width: 420px; }
.detail td { padding: 3px 0; }
.detail td:last-child { text-align: right; }
.notes { white-space: pre-wrap; font-size: 13px; color: var(--muted); background: var(--bg); padding: 10px; border-radius: 8px; margin-top: 8px; max-height: 280px; overflow: auto; }
.rate-foot { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: grid; place-items: center; padding: 16px; z-index: 20; }
.modal[hidden] { display: none; }
.modal .panel { max-width: 440px; width: 100%; }
.modal .choices button { text-align: center; }
table.list { width: 100%; border-collapse: collapse; font-size: 14px; }
table.list th, table.list td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); }
table.list tr[data-id] { cursor: pointer; }
table.list tr[data-id]:hover { background: var(--bg); }
.spinner { text-align: center; padding: 48px 0; color: var(--muted); }
@media (max-width: 600px) {
  .panel { padding: 16px; }
  .rate-main { grid-template-columns: 1fr auto; }
  .rate-main .days { grid-column: 1; text-align: left; }
  .totals { grid-template-columns: repeat(2, 1fr); }
  .list .opt { display: none; }
}
.links { display: flex; gap: 18px; flex-wrap: wrap; }
.days .lbl { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.tip { position: relative; cursor: help; color: var(--accent); font-weight: 700; padding: 0 2px; }
.tip:hover::after, .tip:focus::after { content: attr(data-tip); position: absolute; right: 0; top: 130%; z-index: 6; width: 220px;
  padding: 8px 10px; border-radius: 8px; background: var(--ink); color: var(--panel); font-size: 13px; font-weight: 400; text-align: left; line-height: 1.35; }
.suggest li.best { background: var(--hi); border-left: 3px solid var(--good); }
.suggest .fit { display: block; font-size: 12px; font-weight: 700; color: var(--good); text-transform: uppercase; letter-spacing: .04em; }