/* Land History viewer page styles (M2-T05).
   Ported verbatim from the pinned UX prototype
   (fixtures/viewer-ux-proto/index.html) — the committed prototype stays
   the reference artifact; this copy is what shipped pages load. */

:root{
  --bg:#070b12; --surface:rgba(255,255,255,.028); --line:rgba(255,255,255,.09);
  --txt:#e8eef5; --muted:#8b98a9; --accent:#2dd4bf; --accent-glow:rgba(45,212,191,.45);
  --det:#fbbf24; --det-glow:rgba(251,191,36,.45);
  --warn:#f5c97b;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--txt);
  font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased; line-height:1.5; min-height:100vh;
}
body::before{
  content:""; position:fixed; inset:0; pointer-events:none; z-index:0;
  background:
    radial-gradient(900px 500px at 15% -10%, rgba(45,212,191,.10), transparent 60%),
    radial-gradient(800px 500px at 90% 110%, rgba(99,102,241,.08), transparent 60%);
}
.wrap{position:relative;z-index:1;max-width:1060px;margin:0 auto;padding:28px 22px 64px}

/* ---------- header ---------- */
header.top{display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 0 26px;flex-wrap:wrap}
.wordmark{font-size:13px;letter-spacing:.32em;text-transform:uppercase;color:var(--muted)}
.wordmark b{color:var(--txt);font-weight:650}
.badge{
  font-size:12px;font-weight:650;letter-spacing:.14em;text-transform:uppercase;
  color:#052e2b;background:linear-gradient(135deg,#5eead4,#2dd4bf);
  padding:8px 16px;border-radius:999px;box-shadow:0 0 24px var(--accent-glow);
}

/* ---------- finding ---------- */
.kicker{font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--accent);margin-bottom:10px}
h1.finding{font-size:clamp(24px,3.6vw,40px);font-weight:650;line-height:1.18;letter-spacing:-.015em;
  max-width:22ch;margin-bottom:8px}
.area{color:var(--muted);font-size:14px;margin-bottom:28px}
/* Q1 window-selection disclosure: hidden unless the data carries a note
   ([hidden]-guard convention — the block ships inert when there is
   nothing to disclose) */
.sel-note{width:100%;margin:-14px 0 24px;padding:12px 16px;font-size:13px;color:var(--warn);
  background:rgba(245,201,123,.06);border:1px solid rgba(245,201,123,.35);border-radius:12px}
.sel-note[hidden]{display:none}
.sel-note b{letter-spacing:.06em}
/* M2-T07 geometry disclosure: same family, stacks under the selection
   note (which keeps its own -14px pull-up; this one opens the stack) */
.sel-note.geo-note{margin-top:-16px}
.sel-note .geo-conf{display:block;margin-top:4px;color:var(--muted);font-size:12px}
/* DOC-01: the explicit STABLE verdict block — same disclosure family,
   stacks under the geometry note, above the hero (visible without
   scroll); sentences inline, the limit line reads as one sentence */
.sel-note.verdict-note{margin-top:0}
.sel-note.verdict-note #verdictQualifier{display:inline}
.sel-note.verdict-note #verdictLimit{display:block;margin-top:6px;color:var(--muted)}

/* ---------- hero compare ---------- */
.hero{animation:rise .7s ease both .05s}
.compare{
  --x:50%;
  position:relative;width:min(100%,760px);margin:0 auto;aspect-ratio:306/290;
  border-radius:20px;overflow:hidden;border:1px solid var(--line);
  box-shadow:0 24px 80px rgba(0,0,0,.55),0 0 0 1px rgba(45,212,191,.06),0 0 60px rgba(45,212,191,.05);
  cursor:ew-resize;touch-action:pan-y;user-select:none;-webkit-user-select:none;
  background:#0a0f18;
}
.compare img{position:absolute;inset:0;width:100%;height:100%;display:block;
  image-rendering:pixelated;filter:contrast(1.08) saturate(1.15) brightness(1.05)}
.after-clip{position:absolute;inset:0;clip-path:inset(0 0 0 var(--x))}
.after-clip svg{position:absolute;inset:0;width:100%;height:100%}
.det-poly{fill:rgba(251,191,36,.16);stroke:var(--det);stroke-width:2.2;
  filter:drop-shadow(0 0 2.5px rgba(251,191,36,.9));
  animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{0%,100%{stroke-opacity:1;fill-opacity:.9}50%{stroke-opacity:.45;fill-opacity:.45}}
.handle{position:absolute;top:0;bottom:0;left:var(--x);width:2px;margin-left:-1px;
  background:linear-gradient(180deg,transparent,var(--accent) 18%,var(--accent) 82%,transparent);
  box-shadow:0 0 14px var(--accent-glow);pointer-events:none}
.grip{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:42px;height:42px;border-radius:50%;background:rgba(7,11,18,.82);
  border:1.5px solid var(--accent);box-shadow:0 0 22px var(--accent-glow);
  display:flex;align-items:center;justify-content:center;gap:5px;backdrop-filter:blur(4px)}
.grip::before,.grip::after{content:"";border:solid var(--accent);border-width:0 2px 2px 0;padding:3.5px}
.grip::before{transform:rotate(135deg)}
.grip::after{transform:rotate(-45deg)}
.tag{position:absolute;top:14px;font-size:11px;font-weight:650;letter-spacing:.16em;text-transform:uppercase;
  padding:7px 12px;border-radius:999px;background:rgba(7,11,18,.72);border:1px solid var(--line);
  backdrop-filter:blur(6px);pointer-events:none;transition:opacity .25s}
.tag.before{left:14px}
.tag.after{right:14px;color:var(--accent);border-color:rgba(45,212,191,.4)}
.det-chip{position:absolute;right:14px;bottom:14px;pointer-events:none;
  font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;white-space:nowrap;
  color:#3a2a00;background:var(--det);padding:6px 12px;border-radius:999px;
  box-shadow:0 0 18px var(--det-glow);transition:opacity .25s}
.mode-toggle{width:min(100%,760px);margin:0 auto 12px;display:flex;gap:6px;justify-content:center}
.mode-toggle button{all:unset;cursor:pointer;font-size:11px;font-weight:650;letter-spacing:.16em;
  text-transform:uppercase;padding:8px 18px;border-radius:999px;color:var(--muted);
  border:1px solid var(--line);transition:all .2s}
.mode-toggle button.active{color:#052e2b;background:linear-gradient(135deg,#5eead4,#2dd4bf);
  border-color:transparent;box-shadow:0 0 16px var(--accent-glow)}
.mode-toggle button:not(.active):hover{color:var(--txt);border-color:rgba(255,255,255,.2)}
.legend-hero{width:min(100%,760px);margin:16px auto 0;display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.legend-hero .lc{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);
  background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:7px 13px}
.lc i{width:13px;height:13px;border-radius:4px;display:inline-block;flex:none}
.lc .sw-red{background:linear-gradient(135deg,#c33,#e66)}
.lc .sw-dark{background:#1c2420;border:1px solid rgba(255,255,255,.15)}
.lc .sw-amb{background:transparent;border:2px solid var(--det);box-shadow:0 0 6px var(--det-glow)}
.hint{width:min(100%,760px);margin:14px auto 0;text-align:center;color:var(--muted);
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;transition:opacity .6s}
.sr-note{width:min(100%,760px);margin:8px auto 0;text-align:center;color:var(--muted);font-size:12px}
/* DOC-01: hero endpoint legend — the seasonal-mismatch disclosure under
   the legend, shared by Photo and Infrared modes; inert on event pages */
.season-note{width:min(100%,760px);margin:10px auto 0;text-align:center;color:var(--warn);
  font-size:12.5px;line-height:1.5}
.season-note[hidden]{display:none}

/* ---------- KPIs ---------- */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:34px 0 0;
  animation:rise .7s ease both .15s}
.kpis.three{grid-template-columns:repeat(3,1fr)}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 18px 16px}
.kpi .v{font-size:clamp(20px,2.4vw,28px);font-weight:650;letter-spacing:-.01em}
.kpi .v em{font-style:normal;color:var(--accent)}
.kpi .l{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-top:6px}

/* ---------- detected events (M2-T08: whole-period reports with detections) ---------- */
.events{margin-top:34px;background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:22px 22px 18px;animation:rise .7s ease both .2s}
.events[hidden]{display:none}
.events h2{font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.ev{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding:11px 0;
  border-bottom:1px solid rgba(255,255,255,.045)}
.ev:last-of-type{border-bottom:none}
.ev-label{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;white-space:nowrap}
/* greyscale-distinct levels: solid pill / outlined / dashed outline */
.ev-label.observed{color:#3a2a00;background:var(--det)}
.ev-label.likely{color:var(--det);background:rgba(251,191,36,.07);border:1.5px solid var(--det)}
.ev-label.possible{color:var(--muted);border:1.5px dashed var(--muted)}
.ev-family{font-size:15px;text-transform:capitalize}
.ev-area{font-size:15px;font-weight:650;font-variant-numeric:tabular-nums}
.ev-area em{font-style:normal;color:var(--muted);font-size:12px}
.ev-pair{margin-left:auto;color:var(--muted);font-size:12.5px}
.ev-note{margin-top:12px;font-size:12.5px;color:var(--muted)}

/* ---------- sub-grade disclosure (additive layer, ORDRE-7 T01) ---------- */
.subgrade{margin-top:34px;background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:22px 22px 18px;animation:rise .7s ease both .2s}
.subgrade[hidden]{display:none}
.subgrade h2{font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.subgrade p{font-size:13.5px;line-height:1.55;margin:0 0 10px}
.subgrade .tbl-wrap{margin-top:6px}
.subgrade table{width:100%;border-collapse:collapse;font-size:12.5px;min-width:520px}
.subgrade th{text-align:left;color:var(--muted);font-weight:600;font-size:10.5px;letter-spacing:.16em;
  text-transform:uppercase;padding:10px 14px;background:rgba(255,255,255,.03);border-bottom:1px solid var(--line)}
.subgrade td{padding:9px 14px;border-bottom:1px solid rgba(255,255,255,.045);color:#c6d0dc}
.subgrade tbody tr:last-child td{border-bottom:none}

/* ---------- timeline ---------- */
.tl{margin-top:34px;background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:22px 22px 18px;animation:rise .7s ease both .25s}
.tl h2,.fold h2{font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.tl .bar{display:flex;height:26px;border-radius:8px;overflow:hidden;border:1px solid var(--line);position:relative}
.tl .seg{height:100%}
.tl .seg.obs{background:linear-gradient(180deg,rgba(45,212,191,.34),rgba(45,212,191,.18))}
.tl .seg.gap{background:repeating-linear-gradient(135deg,rgba(245,201,123,.16) 0 6px,rgba(245,201,123,.04) 6px 12px)}
.tl .seg.event{outline:2px solid var(--accent);outline-offset:-2px;box-shadow:inset 0 0 18px rgba(45,212,191,.35)}
.tl .axis{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-top:10px}
.tl .legend{display:flex;gap:22px;flex-wrap:wrap;margin-top:12px;color:var(--muted);font-size:12px}
.tl .legend span{display:inline-flex;align-items:center;gap:8px}
.swatch{width:14px;height:14px;border-radius:4px;display:inline-block;border:1px solid var(--line)}
.swatch.obs{background:rgba(45,212,191,.3)}
.swatch.gap{background:repeating-linear-gradient(135deg,rgba(245,201,123,.3) 0 4px,rgba(245,201,123,.06) 4px 8px)}
.swatch.evt{background:transparent;border-color:var(--accent)}
.tl .gaps-note{color:var(--muted);font-size:12px;margin-top:10px}

/* ---------- fold / tech ---------- */
details.fold{margin-top:34px;background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:0;animation:rise .7s ease both .35s}
details.fold summary{cursor:pointer;list-style:none;padding:20px 22px;font-size:12px;
  letter-spacing:.24em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:10px}
details.fold summary::-webkit-details-marker{display:none}
details.fold summary::before{content:"+";color:var(--accent);font-size:16px;font-weight:600;transition:transform .2s}
details.fold[open] summary::before{transform:rotate(45deg)}
details.fold .body{padding:0 22px 22px;color:var(--muted);font-size:14px}
.callout{background:rgba(45,212,191,.06);border:1px solid rgba(45,212,191,.22);
  border-left:3px solid var(--accent);border-radius:12px;padding:14px 16px;color:var(--txt);font-size:14px}
.tbl-wrap{margin-top:18px;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.tbl-scroll{overflow-x:auto}
details.fold table{width:100%;border-collapse:collapse;font-size:13px;min-width:560px}
details.fold th{text-align:left;color:var(--muted);font-weight:600;font-size:10.5px;letter-spacing:.16em;
  text-transform:uppercase;padding:11px 14px;background:rgba(255,255,255,.03);border-bottom:1px solid var(--line)}
details.fold td{padding:10px 14px;border-bottom:1px solid rgba(255,255,255,.045);color:#c6d0dc}
details.fold tbody tr{transition:background .15s}
details.fold tbody tr:hover{background:rgba(255,255,255,.03)}
details.fold tbody tr:last-child td{border-bottom:none}
details.fold tr.hit td{background:rgba(251,191,36,.05)}
details.fold tr.hit td:first-child{box-shadow:inset 3px 0 0 var(--det)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.chip-id{display:inline-block;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:11.5px;background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:7px;padding:3px 8px;color:var(--muted)}
.pbar{display:inline-flex;align-items:center;gap:8px}
.pbar .track{width:64px;height:5px;border-radius:3px;background:rgba(255,255,255,.08);overflow:hidden}
.pbar .fill{height:100%;border-radius:3px;background:linear-gradient(90deg,#f59e0b,var(--det))}
.pbar .val{font-variant-numeric:tabular-nums;color:#c6d0dc}
.fnote{margin-top:16px;font-size:12.5px;color:var(--muted);border-top:1px solid rgba(255,255,255,.06);padding-top:14px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px}

/* ---------- disclaimers ---------- */
.disclaim{margin-top:34px;border:1px solid rgba(245,201,123,.35);background:rgba(245,201,123,.06);
  border-radius:16px;padding:18px 20px;animation:rise .7s ease both .45s}
.disclaim h2{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--warn);margin-bottom:8px}
.disclaim p{color:#d8cdb8;font-size:14px}

footer{margin-top:40px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);
  font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
footer a{color:var(--accent);text-decoration:none}

@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

@media (max-width:720px){
  .kpis{grid-template-columns:repeat(2,1fr)}
  .kpis.three{grid-template-columns:repeat(2,1fr)}
  .ev{gap:10px}
  .ev-pair{margin-left:0}
  .compare{border-radius:14px}
  .tag{font-size:10px;letter-spacing:.06em;padding:5px 9px}
  .tag.before{left:8px;top:8px}
  .tag.after{right:8px;top:8px}
  .det-chip{right:8px;bottom:8px;font-size:10px;padding:5px 9px}
}
@media print{
  body{background:#fff;color:#111}
  body::before{display:none}
  .badge,.det-chip{box-shadow:none}
  details.fold{display:block}
  .compare{box-shadow:none}
  .sel-note{color:#6b5a2e}
}