:root {
  --paper: oklch(97.5% 0.012 85);
  --sheet: oklch(99% 0.006 85);
  --ink: oklch(24% 0.02 60);
  --ink-soft: oklch(45% 0.02 60);
  --rule: oklch(86% 0.02 80);
  --rule-soft: oklch(92% 0.015 80);
  --accent: oklch(42% 0.09 250);     /* чернильно-синий: интерактив, оценка */
  --accent-wash: oklch(92% 0.03 250);
  --red: oklch(50% 0.16 28);
  --green: oklch(48% 0.11 150);
  --amber: oklch(62% 0.14 70);
  --up: oklch(52% 0.12 150);
  --down: oklch(52% 0.15 28);

  --serif: "Literata", Georgia, serif;
  --sans: "Golos Text", "Segoe UI", system-ui, sans-serif;
  --step--1: clamp(0.8rem, 0.78rem + 0.1vw, 0.86rem);
  --step-0: clamp(0.95rem, 0.92rem + 0.15vw, 1.03rem);
  --step-1: clamp(1.15rem, 1.08rem + 0.35vw, 1.35rem);
  --step-3: clamp(1.9rem, 1.5rem + 2vw, 3rem);
  --step-5: clamp(2.6rem, 1.8rem + 4.2vw, 5.2rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 var(--step-0)/1.5 var(--sans);
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-underline-offset: 0.18em; }

.masthead {
  max-width: 1240px;
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 4.5rem) 16px clamp(1.5rem, 3vw, 2.5rem);
}
.kicker { margin: 0 0 0.6rem; font-size: var(--step--1); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); }
h1 {
  margin: 0;
  font: 800 var(--step-5)/0.95 var(--serif);
  font-optical-sizing: auto;
  letter-spacing: -0.02em;
}
.lede { max-width: 38rem; margin: 1rem 0 0; font-size: var(--step-1); color: var(--ink-soft); }

.layout {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 16px 3rem;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(1rem, 2.5vw, 2.5rem);
  align-items: start;
}
@media (max-width: 860px) { .layout { grid-template-columns: 1fr; } }

.sheet {
  background: var(--sheet);
  border: 1px solid var(--rule);
  padding: clamp(1.1rem, 2.5vw, 2rem);
}

/* ---------- форма ---------- */
fieldset { border: 0; margin: 0 0 1.6rem; padding: 0; min-width: 0; }
legend {
  padding: 0;
  margin-bottom: 0.75rem;
  font: 600 var(--step--1)/1 var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.9rem 1rem; }
.grid legend { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 0.3rem; font-size: var(--step--1); color: var(--ink-soft); }
.opt { color: oklch(62% 0.02 60); }
input, select {
  width: 100%;
  font: 500 var(--step-0) var(--sans);
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.55rem 0.65rem;
  min-height: 2.6rem;
}
input:focus-visible, select:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
input[aria-invalid="true"] { border-color: var(--red); }
.price-field input { font: 600 var(--step-1) var(--serif); padding: 0.6rem 0.75rem; }

.segmented { display: grid; grid-template-columns: 1fr 1fr; gap: 0.3rem 0; }
.segmented > span { grid-column: 1 / -1; }
.segmented label { display: flex; }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented label span {
  flex: 1;
  text-align: center;
  padding: 0.55rem 0.4rem;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
  font-weight: 500;
  cursor: pointer;
  min-height: 2.6rem;
  display: grid;
  place-items: center;
}
.segmented label:first-of-type span { border-right: 0; }
.segmented input:checked + span { background: var(--ink); color: var(--sheet); border-color: var(--ink); }
.segmented input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

.map { height: 260px; border: 1px solid var(--rule); filter: saturate(0.6) sepia(0.12); }
.hint { margin: 0.45rem 0 0; font-size: var(--step--1); color: var(--ink-soft); }

.actions { display: flex; gap: 0.75rem; align-items: center; }
button {
  font: 600 var(--step-0) var(--sans);
  border-radius: 2px;
  padding: 0.75rem 1.3rem;
  cursor: pointer;
  border: 1px solid var(--ink);
  transition: transform 0.15s var(--ease), background 0.2s;
}
button:active { transform: translateY(1px); }
.primary { background: var(--ink); color: var(--sheet); flex: 1; }
.primary:hover { background: oklch(32% 0.03 60); }
.primary[aria-busy="true"] { opacity: 0.7; cursor: progress; }
.ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
.ghost:hover { border-color: var(--ink); }
.error { margin: 0.9rem 0 0; color: var(--red); font-size: var(--step--1); }

/* ---------- отчёт ---------- */
.report { min-height: 32rem; position: relative; }
.empty-title { font: 600 var(--step-3)/1.1 var(--serif); margin: 0 0 1.2rem; color: oklch(70% 0.02 70); }
.empty ol { margin: 0; padding-left: 1.2rem; color: var(--ink-soft); display: grid; gap: 0.5rem; max-width: 34rem; }

.verdict { display: grid; grid-template-columns: auto 1fr; gap: 1.2rem 1.6rem; align-items: center; }
.stamp {
  --c: var(--green);
  color: var(--c);
  border: 3px double var(--c);
  padding: 0.5rem 0.9rem 0.45rem;
  font: 800 var(--step-1)/1.05 var(--serif);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transform: rotate(-4deg);
  max-width: 12rem;
  text-align: center;
  animation: stamp 0.45s var(--ease) both;
}
.stamp.overpriced { --c: var(--red); }
.stamp.suspiciously_cheap { --c: var(--amber); }
@keyframes stamp { from { opacity: 0; transform: rotate(-4deg) scale(1.35); } to { opacity: 1; transform: rotate(-4deg) scale(1); } }
.verdict-text { margin: 0; font-size: var(--step-1); line-height: 1.35; }
.verdict-text strong { font-family: var(--serif); }

.estimate { margin: 2rem 0 0.4rem; display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.3rem 1.2rem; }
.estimate .mid { font: 800 var(--step-3)/1 var(--serif); letter-spacing: -0.01em; }
.estimate .range { color: var(--ink-soft); }

.strip { width: 100%; height: auto; display: block; margin: 0.6rem 0 0.2rem; overflow: visible; }
.strip text { font: 500 15px var(--sans); fill: var(--ink-soft); }
.strip .band { fill: var(--accent-wash); stroke: var(--accent); stroke-width: 1; }
.strip .axis { stroke: var(--rule); }
.strip .mid-tick { stroke: var(--accent); stroke-width: 2; }
.strip .listing { stroke: var(--ink); stroke-width: 2; }
.strip .listing-dot { fill: var(--ink); }
.strip .listing-label { fill: var(--ink); font-weight: 600; }

.section { margin-top: 2.4rem; animation: rise 0.5s var(--ease) both; }
.section:nth-of-type(2) { animation-delay: 0.06s; }
.section:nth-of-type(3) { animation-delay: 0.12s; }
.section:nth-of-type(4) { animation-delay: 0.18s; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
h2 {
  font: 600 var(--step-1)/1.2 var(--serif);
  margin: 0 0 0.3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}
.section .note { margin: 0 0 1rem; font-size: var(--step--1); color: var(--ink-soft); }

.drivers { display: grid; gap: 0.35rem; }
.driver { display: grid; grid-template-columns: minmax(8rem, 13rem) 1fr 4.2rem; align-items: center; gap: 0.75rem; font-size: var(--step--1); }
.driver .name { color: var(--ink); font-weight: 500; }
.driver .name small { display: block; color: var(--ink-soft); font-weight: 400; }
.driver .track { position: relative; height: 0.9rem; }
.driver .track::before { content: ""; position: absolute; left: 50%; top: -0.2rem; bottom: -0.2rem; border-left: 1px solid var(--rule); }
.driver .bar { position: absolute; top: 0; bottom: 0; transform-origin: left center; animation: grow 0.6s var(--ease) both; }
.driver .bar.up { background: var(--up); left: 50%; }
.driver .bar.down { background: var(--down); right: 50%; transform-origin: right center; }
@keyframes grow { from { transform: scaleX(0); } }
.driver .pct { text-align: right; font-weight: 600; }
.driver .pct.up { color: var(--up); }
.driver .pct.down { color: var(--down); }

.cities { display: grid; gap: 0.15rem; }
.city-row { display: grid; grid-template-columns: minmax(7.5rem, 10rem) 1fr 5.5rem; align-items: center; gap: 0.75rem; font-size: var(--step--1); padding: 0.25rem 0; }
.city-row.current { font-weight: 600; }
.city-row .track { position: relative; height: 0.7rem; }
.city-row .rng { position: absolute; top: 0.25rem; height: 0.2rem; background: var(--accent-wash); border: 1px solid var(--accent); }
.city-row .dot { position: absolute; top: 0; width: 0.7rem; height: 0.7rem; border-radius: 50%; background: var(--accent); transform: translateX(-50%); }
.city-row.current .dot { background: var(--ink); }
.city-row .val { text-align: right; }

.history { width: 100%; height: auto; display: block; overflow: visible; }
.history path.line { fill: none; stroke: var(--accent); stroke-width: 2; }
.history path.area { fill: var(--accent-wash); opacity: 0.6; }
.history text { font: 500 15px var(--sans); fill: var(--ink-soft); }
.history line { stroke: var(--rule-soft); }
.history .now { fill: var(--ink); }

.colophon { max-width: 1240px; margin: 0 auto; padding: 0 16px 3rem; font-size: var(--step--1); color: var(--ink-soft); }
.colophon p { max-width: 60rem; border-top: 1px solid var(--rule); padding-top: 1rem; margin: 0; }

@media (max-width: 520px) {
  .grid { grid-template-columns: 1fr 1fr; }
  .verdict { grid-template-columns: 1fr; }
  .driver { grid-template-columns: 7rem 1fr 3.6rem; gap: 0.5rem; }
  .city-row { grid-template-columns: 6.5rem 1fr 4.4rem; gap: 0.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}