/* ============================================================
   Carrion — field-notebook palette: bone paper, umber ink,
   the rust of a vulture's head.
============================================================ */

:root{
  --paper:#e8e2d0;      /* bone / dry-grass */
  --ink:#241f18;        /* dark umber */
  --rust:#a8432a;       /* mercaptan plume / vulture head */
  --moss:#4a5533;       /* terrain green */
  --sky:#bcc4b4;        /* hazy valley sky */
  --line:#8a8168;
  --amber:#c9862e;

  --serif:'Fraunces',Georgia,serif;
  --sans:'Space Grotesk',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  overflow:hidden;
  display:flex;
  flex-direction:column;
}

/* ---- header ---- */
header{
  display:flex;align-items:baseline;gap:.9rem;
  padding:.55rem 1.1rem .5rem;
  border-bottom:1.5px solid var(--ink);
  flex-wrap:wrap;
}
header h1{
  font-family:var(--serif);font-weight:900;
  font-size:1.75rem;letter-spacing:-.02em;line-height:1;
}
header .sub{
  font-family:var(--mono);font-size:.7rem;
  text-transform:uppercase;letter-spacing:.16em;color:var(--line);
}
header .spacer{flex:1}
header .clock{
  font-family:var(--mono);font-size:.78rem;
  letter-spacing:.05em;
}

/* ---- buttons ---- */
button{
  font-family:var(--mono);font-size:.7rem;
  text-transform:uppercase;letter-spacing:.08em;
  background:var(--ink);color:var(--paper);border:none;
  padding:.5rem .7rem;cursor:pointer;flex:1;
  transition:background .15s;
}
button:hover{background:var(--rust)}
button.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
button.ghost:hover{background:var(--ink);color:var(--paper)}

#aboutBtn,#panelToggle{
  font-family:var(--mono);font-size:.68rem;
  text-transform:uppercase;letter-spacing:.1em;
  border:1.5px solid var(--ink);background:transparent;color:var(--ink);
  cursor:pointer;flex:none;padding:.3rem .6rem;
}
#aboutBtn:hover,#panelToggle:hover{background:var(--ink);color:var(--paper)}

:focus-visible{outline:2px solid var(--rust);outline-offset:2px}

/* ---- about dialog ---- */
.overlay{
  position:fixed;inset:0;z-index:50;
  background:rgba(36,31,24,.55);backdrop-filter:blur(2px);
  display:none;align-items:center;justify-content:center;padding:1.2rem;
}
.overlay.show{display:flex}
.modal{
  position:relative;max-width:560px;max-height:88vh;overflow-y:auto;
  background:var(--paper);border:1.5px solid var(--ink);
  box-shadow:0 16px 50px rgba(0,0,0,.4);
  padding:1.8rem 2rem 1.6rem;
}
.modal h1{font-family:var(--serif);font-weight:900;font-size:2.2rem;letter-spacing:-.02em;line-height:1}
.modal .lead{font-family:var(--serif);font-style:italic;font-size:1.05rem;color:var(--rust);margin:.2rem 0 1rem}
.modal h2{
  font-family:var(--mono);font-size:.66rem;text-transform:uppercase;
  letter-spacing:.2em;color:var(--line);margin:1.2rem 0 .5rem;
}
.modal p{font-size:.92rem;line-height:1.6;margin:.5rem 0}
.modal ul{margin:.5rem 0 .5rem 1.1rem;font-size:.92rem;line-height:1.6}
.modal ol{margin:.5rem 0 .5rem 1.3rem;font-size:.92rem;line-height:1.7}
.modal li{margin:.3rem 0}
.modal b{font-weight:700}
.modal a{color:var(--rust)}
.modalClose{
  position:absolute;top:.7rem;right:.9rem;
  background:transparent;border:none;font-size:1.6rem;line-height:1;
  color:var(--ink);cursor:pointer;padding:.1rem .3rem;flex:none;
}
.modalClose:hover{background:transparent;color:var(--rust)}
.modalGo{
  margin-top:1.3rem;width:100%;
  font-size:.75rem;letter-spacing:.12em;padding:.7rem;
}
.modalColophon{
  font-family:var(--mono);font-size:.62rem;color:var(--line);
  text-transform:uppercase;letter-spacing:.12em;
  margin-top:1.1rem;text-align:center;
}
.modalColophon a{color:var(--line)}
.modalColophon a:hover{color:var(--rust)}

/* ---- stage ---- */
#wrap{flex:1;display:flex;min-height:0}
#stage{flex:1;position:relative;min-width:0}
/* touch-action:none — the canvas handles its own pan and pinch */
canvas#scene{
  display:block;width:100%;height:100%;
  cursor:crosshair;touch-action:none;
}
canvas#scene.dragging{cursor:grabbing}

/* ---- map view controls ---- */
#viewCtl{
  position:absolute;left:14px;top:14px;
  display:flex;flex-direction:column;align-items:stretch;gap:1px;
  background:var(--ink);border:1.5px solid var(--ink);
}
#viewCtl button{
  flex:none;width:30px;height:28px;padding:0;
  font-family:var(--mono);font-size:.95rem;line-height:1;
  background:rgba(232,226,208,.92);color:var(--ink);
}
#viewCtl button:hover:not(:disabled){background:var(--rust);color:var(--paper)}
#viewCtl button:disabled{opacity:.4;cursor:default}
#viewCtl #zoomLab{
  font-family:var(--mono);font-size:.55rem;letter-spacing:.02em;
  text-align:center;padding:.22rem 0 .14rem;
  background:var(--ink);color:var(--paper);
}
#viewCtl #zoomFit{font-size:.78rem}

#viewHint{
  position:absolute;left:52px;top:14px;
  font-family:var(--mono);font-size:.6rem;
  text-transform:uppercase;letter-spacing:.09em;
  color:var(--line);background:rgba(232,226,208,.72);
  padding:.22rem .45rem;pointer-events:none;
}
/* say "scroll" or "pinch" depending on what the reader actually has */
#viewHint .coarse{display:none}
@media(pointer:coarse){
  #viewHint .fine{display:none}
  #viewHint .coarse{display:inline}
}
/* the pan clause only while there is somewhere to pan to */
#viewHint.fitted .pan{display:none}

#legend{
  position:absolute;left:14px;bottom:12px;
  display:flex;gap:.5rem;flex-wrap:wrap;max-width:60%;
  font-family:var(--mono);font-size:.64rem;
  text-transform:uppercase;letter-spacing:.08em;
  pointer-events:none;
}
#legend span{
  background:rgba(232,226,208,.82);
  border:1px solid var(--ink);padding:.18rem .4rem;
  display:flex;align-items:center;gap:.35rem;
}
#legend i{width:10px;height:10px;display:inline-block;border:1px solid var(--ink)}

/* wind rose */
#wind{
  position:absolute;right:14px;top:14px;
  width:74px;height:74px;border:1.5px solid var(--ink);
  border-radius:50%;background:rgba(232,226,208,.8);
  display:flex;align-items:center;justify-content:center;
  pointer-events:none;
}
#wind .arrow{
  font-family:var(--mono);font-weight:700;
  font-size:1.5rem;transition:transform .6s ease;
}
#wind .lab{position:absolute;bottom:3px;font-family:var(--mono);font-size:.55rem;letter-spacing:.1em}

/* unobtrusive studio credit, bottom-right of the map */
#credit{
  position:absolute;right:14px;bottom:12px;
  font-family:var(--mono);font-size:.6rem;
  text-transform:uppercase;letter-spacing:.12em;
  color:var(--line);text-decoration:none;
  background:rgba(232,226,208,.7);
  padding:.2rem .45rem;
  border-bottom:1px solid transparent;
}
#credit:hover{color:var(--rust);border-bottom-color:var(--rust)}

/* ---- side panel ---- */
#panel{
  width:290px;flex-shrink:0;border-left:1.5px solid var(--ink);
  background:var(--paper);display:flex;flex-direction:column;
  overflow-y:auto;
}
#panel.collapsed{width:0;min-width:0;border-left:none;overflow:hidden}
#panel.collapsed > *{display:none}

.block{padding:.85rem 1rem;border-bottom:1px dashed var(--line)}
.block h2{
  font-family:var(--mono);font-size:.62rem;
  text-transform:uppercase;letter-spacing:.2em;color:var(--line);
  margin-bottom:.6rem;
}

.metric{display:flex;justify-content:space-between;align-items:baseline;margin:.28rem 0}
.metric .k{font-size:.8rem}
.metric .v{font-family:var(--mono);font-weight:500;font-size:.92rem}
.metric .v.big{font-family:var(--serif);font-weight:900;font-size:1.35rem;line-height:1}

#haz{width:100%;height:52px;display:block;border:1px solid var(--line);background:rgba(255,255,255,.25)}

.ctrl{margin:.55rem 0}
.ctrl label{display:flex;justify-content:space-between;font-size:.72rem;margin-bottom:.2rem;cursor:pointer}
.ctrl label span{font-family:var(--mono);color:var(--rust)}
input[type=range]{width:100%;accent-color:var(--rust);height:3px}

.btnrow{display:flex;gap:.5rem;flex-wrap:wrap}
.btnrow + .btnrow{margin-top:.5rem}

.note{font-size:.66rem;color:var(--line);line-height:1.5;margin-top:.35rem}

.events{font-family:var(--mono);font-size:.63rem;line-height:1.55;max-height:120px;overflow-y:auto}
.events div{padding:.05rem 0;border-bottom:1px dotted #cbc3ab}
.events .t{color:var(--rust)}

/* ---- narrow screens ---- */
@media(max-width:820px){
  header .sub{display:none}
  #panel{
    position:absolute;right:0;top:0;bottom:0;width:min(82vw,280px);
    z-index:5;box-shadow:-8px 0 20px rgba(0,0,0,.18);
  }
  #panel.collapsed{box-shadow:none}
  /* floating, always-reachable toggle */
  #panelToggle{
    position:fixed;right:12px;bottom:12px;z-index:20;
    background:var(--ink);color:var(--paper);
    box-shadow:0 3px 10px rgba(0,0,0,.3);
    padding:.6rem .8rem;font-size:.72rem;
  }
  /* keep the credit clear of the floating toggle, the wind rose and the
     zoom cluster — it tucks in under the rose */
  #credit{bottom:auto;top:96px}
  #legend{max-width:calc(100% - 100px)}
  /* the hint won't fit beside the cluster on a phone, so it sits under it */
  #viewHint{left:14px;top:152px;max-width:calc(100% - 28px)}
  #viewCtl button{width:34px;height:32px}
}

@media(prefers-reduced-motion:reduce){
  #wind .arrow{transition:none}
}