/* autoisatim — Valdivian rainforest theme.
   Palette: deep evergreen canopy, moss, fern, river-mist background, copper (alerce wood). */
:root {
  --canopy-2: #06231b;   /* darkest evergreen */
  --canopy: #0b3b2c;     /* header green */
  --pine: #14532d;
  --fern: #1e7a4f;       /* primary accent */
  --fern-bright: #2fa06a;
  --moss: #8fbf9f;
  --mist: #eef3ee;       /* page background */
  --mist-2: #e2ebe3;
  --card: #ffffff;
  --ink: #142019;
  --muted: #5c6f63;
  --line: #d9e4da;
  --river: #33687e;      /* Calle-Calle blue */
  --copper: #b06a3b;     /* alerce / price-drop */
  --gold: #b98a2c;
  --particular: #1e7a4f;
  --automotora: #708476;
  --kavak: #33687e;
  --card-h: 246px;
  --stat-h: 112px;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(11, 59, 44, .08), 0 10px 26px -14px rgba(11, 59, 44, .28);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 15px/1.5 var(--font-body);
  background:
    radial-gradient(1100px 420px at 85% -80px, rgba(47, 160, 106, .10), transparent 60%),
    radial-gradient(900px 380px at 8% -60px, rgba(51, 104, 126, .08), transparent 60%),
    var(--mist);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
}
a { color: var(--river); }

/* ---------- header: evergreen canopy with layered forest hills ---------- */
.top {
  position: sticky; top: 0; z-index: 20;
  color: #eaf4ec;
  background:
    radial-gradient(900px 200px at 20% -60px, rgba(143, 191, 159, .22), transparent 65%),
    radial-gradient(700px 180px at 90% -40px, rgba(51, 104, 126, .30), transparent 60%),
    linear-gradient(165deg, var(--canopy-2) 0%, var(--canopy) 55%, #0e4a35 100%);
  box-shadow: 0 6px 24px -12px rgba(6, 35, 27, .55);
}
.top-inner {
  max-width: 1180px; margin: 0 auto; padding: 16px 16px 4px;
  display: flex; justify-content: space-between; align-items: flex-start; gap: 12px;
}
.brand { display: flex; gap: 13px; align-items: center; }
.logo { width: 42px; height: 42px; color: var(--moss); flex-shrink: 0; }
.top h1 {
  margin: 0; font-family: var(--font-display); font-weight: 650; font-size: 26px;
  letter-spacing: .3px; color: #f4faf5;
}
.sub { margin: 2px 0 0; color: var(--moss); font-size: 12.5px; letter-spacing: .2px; }

.lang { display: flex; align-items: center; gap: 2px; margin-top: 6px; }
.lang-btn {
  background: none; border: 1px solid transparent; border-radius: 8px;
  color: rgba(234, 244, 236, .55); font: 600 12.5px var(--font-body); letter-spacing: .8px;
  padding: 4px 8px; cursor: pointer;
}
.lang-btn.active { color: #fff; border-color: rgba(143, 191, 159, .5); background: rgba(143, 191, 159, .14); }
.lang-sep { color: rgba(234, 244, 236, .3); }

.tabs { max-width: 1180px; margin: 4px auto 0; padding: 0 16px; display: flex; gap: 4px; overflow-x: auto; position: relative; z-index: 2; }
.tab {
  background: none; border: 0; border-bottom: 3px solid transparent;
  padding: 10px 14px 12px; font: 600 15px var(--font-body); color: rgba(234, 244, 236, .62);
  cursor: pointer; white-space: nowrap; letter-spacing: .2px;
}
.tab:hover { color: #fff; }
.tab.active { color: #fff; border-bottom-color: var(--fern-bright); }

/* layered hills under the header */
.forest { height: 34px; margin-top: -6px; pointer-events: none; }
.forest svg { display: block; width: 100%; height: 100%; }
.hill-1 { fill: rgba(30, 122, 79, .35); }
.hill-2 { fill: rgba(20, 83, 45, .55); }
.hill-3 { fill: var(--mist); }

main { max-width: 1180px; margin: 0 auto; padding: 18px 16px; }
.panel { display: none; }
.panel.active { display: block; animation: rise .25s ease-out; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------- cards: every box has the same size within its grid ---------- */
.cards {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(264px, 1fr));
  grid-auto-rows: var(--card-h);
}
.cards.stats { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); grid-auto-rows: var(--stat-h); margin-bottom: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 15px;
  height: 100%; overflow: hidden;
  display: flex; flex-direction: column;
}
.stat { position: relative; }
.stat::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 4px;
  background: linear-gradient(var(--fern), var(--river));
  border-radius: var(--radius) 0 0 var(--radius);
}
.stat .k { font-size: 11.5px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .8px; }
.stat .v { font-family: var(--font-display); font-size: 32px; font-weight: 650; line-height: 1.1; margin-top: 4px; color: var(--pine); }
.stat .v.small { font-size: 17px; font-family: var(--font-body); font-weight: 700; }
.stat .d { font-size: 12px; color: var(--muted); margin-top: auto; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---------- filters ---------- */
.filters {
  display: grid; gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(152px, 1fr));
  align-items: end;
  background: linear-gradient(180deg, #fff, #fbfdfb);
  border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px; margin-bottom: 14px;
}
.filters label { display: flex; flex-direction: column; gap: 4px; font-size: 11.5px; font-weight: 600; letter-spacing: .5px; text-transform: uppercase; color: var(--muted); }
.filters input, .filters select {
  font: 500 14px var(--font-body); padding: 9px 10px; border: 1.5px solid var(--line); border-radius: 10px;
  background: #fff; color: var(--ink); width: 100%; transition: border-color .15s;
}
.filters input:focus, .filters select:focus { outline: none; border-color: var(--fern-bright); }
.filters .chk { flex-direction: row; align-items: center; gap: 8px; font-size: 13px; text-transform: none; letter-spacing: 0; color: var(--ink); font-weight: 500; padding: 8px 0; }
.filters .chk input { width: auto; accent-color: var(--fern); }
button.ghost {
  font: 600 13.5px var(--font-body); padding: 9px 14px; border-radius: 10px;
  border: 1.5px solid var(--line); background: #fff; cursor: pointer; color: var(--muted);
  transition: border-color .15s, color .15s;
}
button.ghost:hover { border-color: var(--fern); color: var(--fern); }
.meta, .foot { color: var(--muted); font-size: 13px; margin: 6px 2px 12px; }
.foot { margin-top: 18px; }

/* ---------- listing card ---------- */
.listing { position: relative; transition: transform .16s ease, box-shadow .16s ease; }
.listing:hover { transform: translateY(-3px); box-shadow: 0 2px 4px rgba(11,59,44,.08), 0 18px 34px -16px rgba(11,59,44,.35); }
.listing > * { flex-shrink: 0; }
.listing .title {
  font-weight: 650; font-size: 15px; line-height: 1.3; letter-spacing: .1px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  margin-right: 58px; min-height: 2.6em;
}
.listing .score {
  position: absolute; top: 13px; right: 13px;
  width: 48px; height: 48px; border-radius: 50%;
  display: grid; place-items: center;
  font: 800 15px var(--font-body); color: var(--pine);
  background: #fff;
}
.listing .score i { position: absolute; inset: 0; border-radius: 50%; padding: 4px;
  background: conic-gradient(var(--ring, var(--moss)) calc(var(--pct, 50) * 1%), var(--mist-2) 0);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; }
.score.s-hi { --ring: var(--fern-bright); }
.score.s-mid { --ring: var(--gold); }
.score.s-lo { --ring: #a9b8ac; }
.listing .price { font-family: var(--font-display); font-size: 24px; font-weight: 650; margin-top: 7px; color: var(--pine); }
.listing .price small { font: 500 12px var(--font-body); color: var(--muted); margin-left: 7px; text-decoration: line-through; }
.listing .specs { color: var(--muted); font-size: 13px; margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.listing .badges { display: flex; gap: 6px; flex-wrap: nowrap; overflow: hidden; margin-top: 9px; height: 22px; }
.badge { font-size: 10.5px; font-weight: 700; padding: 3.5px 9px; border-radius: 999px; letter-spacing: .5px; text-transform: uppercase; white-space: nowrap; }
.badge.new { background: #dff1e5; color: var(--fern); }
.badge.drop { background: #f6e7db; color: var(--copper); }
.badge.seller, .badge.site { background: var(--mist-2); color: var(--muted); }
.listing .bottom {
  margin-top: auto; display: flex; justify-content: space-between; align-items: center; gap: 8px;
  font-size: 12.5px; color: var(--muted);
}
.listing .bottom span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.listing .go {
  background: linear-gradient(150deg, var(--fern), var(--pine)); color: #fff; text-decoration: none;
  padding: 8px 14px; border-radius: 10px; font-weight: 600; font-size: 13px; white-space: nowrap;
  box-shadow: 0 6px 14px -8px rgba(20, 83, 45, .7);
}
.listing .go:hover { filter: brightness(1.08); }
.vs.under { color: var(--fern); font-weight: 600; }
.vs.over { color: var(--copper); }

/* ---------- chart ---------- */
.chart-controls { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.chart-controls label { font-size: 11.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.chart-controls select { font: 500 14px var(--font-body); padding: 8px 10px; border: 1.5px solid var(--line); border-radius: 10px; background: #fff; }
.legend { font-size: 12.5px; color: var(--muted); display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.legend > span { margin-left: -8px; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; }
.dot.particular { background: var(--particular); }
.dot.automotora { background: var(--automotora); }
.dot.kavak { background: var(--kavak); }
.line { display: inline-block; width: 22px; height: 0; border-top: 3px solid var(--copper); vertical-align: middle; }
.chart-card { height: auto; padding: 10px; margin-bottom: 16px; }
#chart { width: 100%; height: auto; display: block; }
#chart text { font: 11px var(--font-body); fill: var(--muted); }
#chart .axis { stroke: var(--line); }
#chart .grid { stroke: var(--line); stroke-dasharray: 3 3; }
#chart .pt { opacity: .85; }
#chart .pt.particular { fill: var(--particular); }
#chart .pt.automotora { fill: var(--automotora); }
#chart .pt.kavak { fill: var(--kavak); }
#chart .median { stroke: var(--copper); stroke-width: 3; fill: none; }
#chart .median-pt { fill: var(--copper); }

/* ---------- guide diagrams (Mermaid) ---------- */
.diagram {
  background: linear-gradient(180deg, #fbfdfb, var(--mist));
  border: 1px solid var(--line); border-radius: 14px;
  padding: 14px; margin: 16px 0; overflow-x: auto;
}
.diagram pre.mermaid { margin: 0; background: none; display: flex; justify-content: center; }
.diagram svg { max-width: 100%; height: auto; }
.diagram pre.mermaid:not([data-processed]) { font: 12px/1.4 ui-monospace, monospace; color: var(--muted); white-space: pre-wrap; }

/* ---------- guide ---------- */
.guide-note {
  background: #fdf6ec; border: 1px solid #ecd9b8; color: #7c5a1e;
  border-radius: 12px; padding: 10px 14px; font-size: 13.5px; margin: 0 0 12px;
}
.guide { height: auto; padding: 26px 30px; line-height: 1.6; }
.guide h1 { font-family: var(--font-display); font-size: 27px; font-weight: 650; margin-top: 0; color: var(--pine); }
.guide h2 { font-family: var(--font-display); font-size: 20px; font-weight: 650; margin-top: 30px; color: var(--pine); border-bottom: 2px solid var(--mist-2); padding-bottom: 6px; }
.guide h3 { font-size: 16px; margin-top: 22px; color: var(--canopy); }
.guide table { border-collapse: collapse; width: 100%; font-size: 13.5px; display: block; overflow-x: auto; }
.guide th, .guide td { border: 1px solid var(--line); padding: 7px 9px; vertical-align: top; text-align: left; }
.guide th { background: var(--mist); color: var(--pine); }
.guide tr:nth-child(even) td { background: #fbfdfb; }
.guide blockquote { border-left: 4px solid var(--fern); margin: 0; padding: 6px 14px; color: var(--muted); background: var(--mist); border-radius: 0 10px 10px 0; }
.guide code { background: var(--mist-2); padding: 1px 6px; border-radius: 5px; }
.guide a { color: var(--river); }

.bottom { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; padding: 22px 16px 26px; color: var(--muted); font-size: 12.5px; }

@media (max-width: 520px) {
  :root { --card-h: 240px; --stat-h: 100px; }
  .cards { grid-template-columns: 1fr; }
  .cards.stats { grid-template-columns: 1fr 1fr; }
  .stat .v { font-size: 26px; }
  .top h1 { font-size: 22px; }
  .forest { height: 24px; }
  main { padding: 14px 12px; }
  .guide { padding: 18px 16px; }
}