/* Blueprint: a navy drafting table with a grid, clean white report cards, teal for the model,
   amber for the market baseline. Serif headline, mono for the figures. */
:root {
  --bg: #0f1d31;
  --bg-2: #13253d;
  --grid: rgba(120, 170, 220, 0.09);
  --card: #ffffff;
  --text: #0f1d31;
  --on-dark: #e8f0fa;
  --soft: #475a73;
  --muted: #7b8ba0;
  --line: #dce4ee;
  --teal: #0fa597;
  --teal-2: #2fc4b2;
  --amber: #f2b233;
  color-scheme: light;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 32px 32px,
    radial-gradient(800px 400px at 80% -100px, rgba(47, 196, 178, 0.18), transparent 70%),
    var(--bg);
  color: var(--text);
  font: 16px/1.55 Inter, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
.wrap {
  max-width: 1000px;
  margin: 0 auto;
  padding: 52px 16px 64px;
}
header {
  color: var(--on-dark);
}
.eyebrow {
  font: 500 12px 'IBM Plex Mono', monospace;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-2);
  margin: 0;
}
h1 {
  font: 800 clamp(34px, 6vw, 60px) / 1.02 Fraunces, Georgia, serif;
  letter-spacing: -0.02em;
  margin: 12px 0 12px;
}
.lede {
  max-width: 60ch;
  color: #b9c7d8;
  margin: 0 0 30px;
}
.grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 18px;
  align-items: start;
}
.card {
  background: var(--card);
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.4) inset, 0 24px 50px -24px rgba(0, 0, 0, 0.6);
}
.field {
  display: grid;
  gap: 6px;
  margin: 0 0 16px;
  border: 0;
  padding: 0;
  min-width: 0;
}
.field > span,
legend {
  font-weight: 600;
  font-size: 13px;
  color: var(--soft);
  padding: 0;
}
input[type='number'],
#suburb {
  width: 100%;
  font: inherit;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #f7f9fc;
  color: var(--text);
}
input:focus-visible,
.seg input:focus-visible + span,
.btn:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}
.row3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.seg {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 4px;
  border-radius: 10px;
  background: #eef2f7;
}
.seg input {
  position: absolute;
  opacity: 0;
}
.seg span {
  display: block;
  text-align: center;
  padding: 8px 6px;
  border-radius: 7px;
  font-weight: 600;
  font-size: 14px;
  color: var(--soft);
  cursor: pointer;
}
.seg input:checked + span {
  background: var(--card);
  color: var(--text);
  box-shadow: 0 1px 3px rgba(15, 29, 49, 0.18);
}
details {
  margin: 0 0 16px;
}
summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  color: var(--teal);
  margin-bottom: 12px;
}
.hint,
.err {
  font-size: 12px;
  color: var(--muted);
}
.err {
  color: #c2412d;
  font-weight: 600;
}
.btn {
  width: 100%;
  font: 700 16px Inter, sans-serif;
  padding: 13px;
  border-radius: 10px;
  border: 0;
  background: var(--teal);
  color: #fff;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
}
.btn:hover {
  background: #0c8f83;
}
.btn:active {
  transform: scale(0.99);
}
.result {
  min-height: 240px;
  border-top: 4px solid var(--teal);
}
.empty {
  color: var(--muted);
}
.k {
  margin: 0;
  font: 500 11px 'IBM Plex Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.price {
  margin: 6px 0 4px;
  font: 800 clamp(40px, 7vw, 58px) / 1 Fraunces, Georgia, serif;
  letter-spacing: -0.02em;
  color: var(--text);
}
.range {
  margin: 0 0 14px;
  color: var(--soft);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
}
.range strong {
  color: var(--text);
}
.bar {
  position: relative;
  height: 12px;
  border-radius: 99px;
  background: #eef2f7;
  margin: 10px 0 16px;
}
.bar span {
  position: absolute;
  top: 0;
  bottom: 0;
  border-radius: 99px;
  background: color-mix(in srgb, var(--teal-2) 45%, transparent);
}
.bar i,
.bar b {
  position: absolute;
  top: -5px;
  width: 4px;
  height: 22px;
  border-radius: 2px;
  translate: -50% 0;
}
.bar i {
  background: var(--teal);
}
.bar b {
  background: var(--amber);
}
.legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin: -6px 0 12px;
  font-size: 12px;
  color: var(--muted);
}
.legend i,
.legend b,
.legend span {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
}
.legend i {
  background: var(--teal);
}
.legend b {
  background: var(--amber);
}
.legend span {
  width: 18px;
  background: color-mix(in srgb, var(--teal-2) 45%, transparent);
}
.vs {
  margin: 0 0 10px;
  font-size: 15px;
}
.note,
.small {
  font-size: 13px;
  color: var(--muted);
}
.how {
  margin-top: 18px;
}
h2 {
  margin: 0 0 8px;
  font: 800 24px Fraunces, Georgia, serif;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 15px;
}
th,
td {
  text-align: left;
  padding: 10px 8px;
  border-top: 1px solid var(--line);
}
td:not(:first-child) {
  font-family: 'IBM Plex Mono', monospace;
}
th {
  font: 500 11px 'IBM Plex Mono', monospace;
  text-transform: uppercase;
  color: var(--muted);
  border-top: 0;
}
tr.hl td {
  font-weight: 700;
  color: var(--teal);
  background: #effaf8;
}
tr.hl td:first-child {
  color: var(--text);
}
a {
  color: var(--teal);
}
@media (max-width: 760px) {
  .grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .wrap {
    padding-top: 36px;
  }
  table {
    font-size: 13px;
  }
  th,
  td {
    padding: 8px 4px;
  }
}