:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --panel: #fff;
  --text: #172033;
  --muted: #647086;
  --line: #d9e1ec;
  --primary: #0f766e;
  --primary-strong: #0b5f59;
  --warn-bg: #fff8e5;
  --warn-line: #f2c15c;
  --error: #b42318;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, Segoe UI, sans-serif;
}
a { color: var(--primary-strong); text-decoration: none; }
.topbar {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 28px;
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--text); }
.topbar nav { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.topbar form { margin: 0; }
main { max-width: 1280px; margin: 0 auto; padding: 24px; }
footer {
  max-width: 1280px;
  margin: 32px auto 0;
  padding: 22px 24px;
  display: flex;
  gap: 16px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}
h1 { font-size: 32px; margin: 0 0 8px; letter-spacing: 0; }
h2 { font-size: 19px; margin: 0 0 12px; letter-spacing: 0; }
.lead { color: var(--muted); margin: 0 0 16px; max-width: 820px; }
.tool-shell { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 18px; align-items: start; }
.panel, aside, .auth-card, .plan {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  margin: 0 0 14px;
}
.notice {
  background: var(--warn-bg);
  border: 1px solid var(--warn-line);
  border-radius: 8px;
  padding: 12px 14px;
  margin: 0 0 14px;
}
.notice.small { font-size: 13px; }
.error { color: var(--error); background: #fff0ed; border: 1px solid #ffb4a8; padding: 10px 12px; border-radius: 8px; margin: 0 0 12px; }
.hint { margin-top: 8px; color: var(--muted); min-height: 22px; }
.tiny { font-size: 13px; }
.checkline { display: inline-flex; align-items: center; gap: 8px; margin-top: 10px; color: var(--muted); }
.checkline input { width: auto; }
.form-grid { display: grid; grid-template-columns: minmax(230px, 1fr) minmax(230px, 1fr) auto; gap: 12px; align-items: end; }
label { display: block; }
label span { display: block; font-weight: 650; margin-bottom: 6px; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--text);
  padding: 10px 11px;
  font: inherit;
}
textarea { min-height: 168px; resize: vertical; font-family: ui-monospace, Consolas, monospace; font-size: 13px; }
button, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--text);
  padding: 9px 13px;
  font: inherit;
  cursor: pointer;
}
button:disabled { opacity: .55; cursor: not-allowed; }
.primary, .nav-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.primary:hover { background: var(--primary-strong); }
.wide { width: 100%; }
.result-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 10px; }
.actions, .exports { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.exports { margin-top: 10px; }
.exports a { border: 1px solid var(--line); border-radius: 7px; padding: 8px 12px; background: #fff; }
.coords-toolbar { display: flex; align-items: end; gap: 14px; flex-wrap: wrap; margin: 0 0 12px; }
.coords-toolbar label:first-child { min-width: 190px; }
.coords-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
#map { height: 520px; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.price { font-size: 34px; font-weight: 800; margin-bottom: 6px; }
.auth-card, .pricing, .profile, .legal, section:not(.tool-shell) { max-width: 860px; margin: 0 auto; }
.auth-card form { display: grid; gap: 12px; }
table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
th, td { text-align: left; padding: 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #eef3f7; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 18px; }
.stats div { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 14px; }
.stats strong { display: block; font-size: 26px; }
.stats span { color: var(--muted); }
@media (max-width: 900px) {
  .tool-shell, .form-grid, .coords-grid { grid-template-columns: 1fr; }
  aside { order: -1; }
  .topbar { align-items: flex-start; padding: 12px 16px; flex-direction: column; }
  main { padding: 16px; }
  #map { height: 420px; }
}