/* Philosopher Atlas — old-map / parchment theme */
:root{
  --ink:#3a2a12; --ink-soft:#6b4f2a; --dim:#8a744f;
  --sea:#e9ddbf; --land:#d7c298; --coast:#6b4f2a; --grat:#cbb78d;
  --paper:#f3ead2; --paper-edge:#b89b6a; --paper-hi:#fbf5e3;
  --accent:#7a3b1d;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:#2e2417;
  font-family:"Noto Serif TC",Georgia,"Songti TC","Times New Roman",serif;color:var(--ink)}
#app{display:grid;grid-template-rows:56px 1fr 56px;grid-template-columns:1fr 340px;height:100vh;
  background:radial-gradient(ellipse at center,#efe4c6,#e3d4ad)}

/* topbar */
#topbar{grid-column:1/3;display:flex;align-items:center;gap:20px;padding:0 18px;
  background:linear-gradient(#efe3c4,#e4d5ac);border-bottom:1px solid var(--paper-edge);
  box-shadow:0 1px 4px rgba(60,40,15,.25)}
#title{margin:0;font-size:30px;font-weight:700;letter-spacing:1px;white-space:nowrap}
#title .sub{font-size:16px;color:var(--dim);font-weight:400;margin-left:8px;letter-spacing:2px}
#nav{display:flex;gap:4px;margin-left:18px}
.navlink{font-family:inherit;font-size:16px;color:var(--ink-soft);background:none;border:none;
  padding:5px 11px;border-radius:14px;cursor:pointer;letter-spacing:1px}
.navlink:hover{background:rgba(122,59,29,.12);color:var(--accent)}
#repolink{margin-left:auto}
.iconlink{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;
  border-radius:14px;color:var(--ink-soft);text-decoration:none}
.iconlink:hover{background:rgba(122,59,29,.12);color:var(--accent)}
#langbtn{margin-left:8px;font-family:inherit;font-size:14px;font-weight:600;letter-spacing:1px;
  color:var(--ink-soft);background:var(--paper-hi);border:1px solid var(--paper-edge);
  padding:5px 12px;border-radius:14px;cursor:pointer;min-width:40px}
#langbtn:hover{background:rgba(122,59,29,.12);color:var(--accent);border-color:var(--accent)}
/* bilingual visibility toggles (default = Traditional Chinese) */
.enw{display:none}
body.en .enw{display:inline}
body.en .zhw{display:none}
.mlang.en{display:none}
body.en .mlang.en{display:block}
body.en .mlang.zh{display:none}
#searchwrap{position:relative;margin-left:12px}
#search{width:260px;padding:6px 12px;border:1px solid var(--paper-edge);border-radius:16px;
  background:var(--paper-hi);color:var(--ink);font-family:inherit;font-size:16.5px;outline:none}
#search:focus{border-color:var(--accent)}
#sresults{display:none;position:absolute;top:36px;right:0;width:280px;max-height:320px;overflow:auto;
  background:var(--paper);border:1px solid var(--paper-edge);border-radius:8px;box-shadow:0 6px 18px rgba(50,35,15,.3);z-index:30}
.sr{padding:7px 12px;cursor:pointer;font-size:16.5px;border-bottom:1px solid #e6d8b6}
.sr:hover{background:#efe2c1}

/* map */
#map{grid-row:2;grid-column:1;position:relative;overflow:hidden}
#map svg{display:block;background:var(--sea)}
.land{fill:var(--land);stroke:var(--coast);stroke-width:.9;stroke-linejoin:round;vector-effect:non-scaling-stroke}
.grat{fill:none;stroke:var(--grat);stroke-width:.5;stroke-dasharray:2,3;opacity:.55;vector-effect:non-scaling-stroke}
.refpar{fill:none;stroke:#a98c54;stroke-width:.8;opacity:.7;vector-effect:non-scaling-stroke}
.lake{fill:var(--sea);stroke:var(--coast);stroke-width:.6;vector-effect:non-scaling-stroke}
.river{fill:none;stroke:#7f948f;stroke-width:.9;stroke-linejoin:round;stroke-linecap:round;opacity:.8;vector-effect:non-scaling-stroke}
.border{fill:none;stroke:#8a5a2a;stroke-width:.8;stroke-dasharray:3,2.5;opacity:.55;vector-effect:non-scaling-stroke;pointer-events:none}
#loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:21px;color:var(--ink-soft);background:var(--sea)}
.noscript-msg{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;
  gap:12px;max-width:640px;margin:auto;padding:32px;color:var(--ink);background:var(--sea);line-height:1.6}
.noscript-msg h2{margin:0 0 4px}

/* overlay pins / clusters */
.overlay .pc{transition:stroke-width .1s}
.cl .ch{stroke:#f3ead2;stroke-width:1}
.cl .ct{text-anchor:middle;fill:#fbf5e3;font-size:13px;font-weight:700;pointer-events:none;
  font-family:Georgia,serif}
line.leg{stroke:var(--ink-soft);stroke-width:.8;opacity:.6}

/* trails */
.trailline{fill:none;stroke:var(--ink-soft);opacity:.65;stroke-linecap:round}
.reg{opacity:.95}

/* legend */
#legend{position:absolute;top:60px;left:12px;width:214px;background:rgba(243,234,210,.94);
  border:1px solid var(--paper-edge);border-radius:8px;padding:9px 10px;font-size:15.5px;
  box-shadow:0 3px 12px rgba(50,35,15,.22);z-index:10}
.lh{font-weight:700;margin-bottom:6px;display:flex;justify-content:space-between;align-items:baseline}
.lh .dim{font-size:12px;font-weight:400}
.li{display:flex;align-items:center;gap:7px;padding:2px 2px;cursor:pointer;border-radius:4px}
.li:hover{background:#e9dbb8}
.li.off{opacity:.34}
.sw{width:12px;height:12px;border-radius:50%;flex:0 0 auto;border:1px solid rgba(60,40,15,.4)}
.ln{flex:1}
.lc{color:var(--dim);font-variant-numeric:tabular-nums}
.lfocus{display:flex;align-items:center;gap:6px;margin-top:8px;padding-top:7px;border-top:1px solid #ddcba0;font-size:12.5px;color:var(--ink-soft);cursor:pointer}
.lbias{margin-top:7px;padding-top:6px;border-top:1px solid #ddcba0;font-size:12.5px;color:var(--dim);line-height:1.4}

/* panel */
#panel{grid-row:2;grid-column:2;overflow-y:auto;background:linear-gradient(#f5ecd6,#efe3c4);
  border-left:1px solid var(--paper-edge);padding:0 0 20px}
.pempty{padding:40px 20px;text-align:center;color:var(--dim);line-height:1.7}
.phead{padding:16px 18px 12px;border-left:5px solid var(--accent);margin-bottom:4px}
.pname{font-size:26px;font-weight:700;line-height:1.2}
.pen{font-size:15.5px;color:var(--dim);margin-top:2px}
.pdesc{font-size:14.5px;color:var(--ink-soft);margin-top:5px;font-style:italic;line-height:1.4}
.biotext{font-size:15px;line-height:1.8;white-space:pre-line;color:var(--ink);max-height:230px;overflow-y:auto;padding-right:8px}
.biotext::-webkit-scrollbar{width:8px}
.biotext::-webkit-scrollbar-thumb{background:#cdb680;border-radius:4px}
.psec.bio{background:rgba(250,244,227,.5)}
.pmeta{font-size:15.5px;margin-top:6px}
.ptags{margin-top:9px;display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.ttag{color:#fbf5e3;font-size:14px;padding:2px 9px;border-radius:11px}
.ktag{font-size:14px;padding:2px 8px;border-radius:11px;border:1px solid var(--paper-edge);background:var(--paper-hi)}
.prov{color:var(--accent);font-size:12px}
.psec{padding:11px 18px;border-top:1px solid #e4d5ac}
.ph{font-size:14px;font-weight:700;color:var(--ink-soft);margin-bottom:7px;letter-spacing:.5px}
.ph .dim{font-weight:400}
.votes{display:flex;flex-wrap:wrap;gap:5px}
.vote{font-size:14px;padding:3px 9px;border-radius:5px;background:#e7d6ab;border:1px solid #cdb680;color:var(--ink)}
.polity.polity{padding-top:12px;padding-bottom:12px}
.polity .polv{font-size:20px;font-weight:700;color:var(--accent)}
.polity.approx .polv{color:#8a5a2a}
ul.pworks,ul.pregs{margin:0;padding-left:2px;list-style:none;font-size:15.5px;line-height:1.6}
ul.pworks li{padding:1px 0;border-bottom:1px dotted #ddcba0}
ul.pregs li{padding:2px 0}
.rk{display:inline-block;width:2.6em;font-size:13px;color:#fff;text-align:center;border-radius:3px;margin-right:5px}
.rk-birth{background:#6d3b8e}.rk-work{background:#1b6b47}.rk-residence{background:#33548c}.rk-death{background:#9e2a2b}
.dim{color:var(--dim)}
.pfoot{padding:12px 18px;font-size:14px}
.pfoot a{color:var(--accent);text-decoration:none}.pfoot a:hover{text-decoration:underline}
.ploading{padding:20px 18px;color:var(--dim)}

/* scrubber */
#scrubberbar{grid-column:1/3;display:flex;align-items:center;gap:16px;padding:0 20px;
  background:linear-gradient(#e4d5ac,#efe3c4);border-top:1px solid var(--paper-edge)}
#allwrap{font-size:15.5px;color:var(--ink-soft);white-space:nowrap;cursor:pointer}
#year{flex:1;accent-color:var(--accent);cursor:pointer}
#yearlab{min-width:96px;text-align:right;font-variant-numeric:tabular-nums;font-weight:700;font-size:17.5px}

/* tooltip */
#tooltip{display:none;position:fixed;pointer-events:none;z-index:40;max-width:260px;
  background:rgba(46,36,23,.95);color:#f3ead2;padding:6px 10px;border-radius:6px;font-size:15.5px;line-height:1.4;
  box-shadow:0 3px 12px rgba(0,0,0,.4)}
#tooltip .tsub{color:#cbb78d;font-size:13.5px}

/* legend collapse (all sizes) */
#legend .lh{cursor:pointer}
#legend .lh::after{content:'▾';margin-left:6px;font-size:11px;color:var(--dim)}
#legend.collapsed .lh::after{content:'▸'}
#legend.collapsed .li,#legend.collapsed .lfocus,#legend.collapsed .lbias{display:none}

/* mobile nav button (hidden on desktop) */
#navbtn{display:none;font-family:inherit;font-size:22px;line-height:1;background:none;border:none;
  color:var(--ink-soft);cursor:pointer;padding:4px 8px;margin-left:auto}

/* ============ responsive (phones / narrow) ============ */
@media (max-width:760px){
  /* 4-row grid: topbar | map (upper half) | panel (lower half) | scrubber */
  #app{grid-template-columns:1fr;grid-template-rows:50px calc((100vh - 102px) / 2) 1fr 52px}
  #topbar{grid-row:1;grid-column:1;gap:8px;padding:0 12px}
  #map{grid-row:2;grid-column:1}
  #panel{grid-row:3;grid-column:1;position:static;width:auto;height:auto;
    border-left:none;border-top:2px solid var(--paper-edge);border-radius:0;
    box-shadow:0 -2px 10px rgba(30,20,8,.15);transform:none !important;transition:none;
    overflow-y:auto;-webkit-overflow-scrolling:touch;padding-bottom:14px}
  #panel::before{display:none}
  #scrubberbar{grid-row:4;grid-column:1}

  /* topbar items */
  #title{font-size:19px;letter-spacing:0}
  #title .sub{display:none}
  #nav{display:none}
  #repolink{display:none}
  #navbtn{display:inline-flex;margin-left:6px}
  #langbtn{margin-left:auto;padding:4px 9px;font-size:13px;min-width:34px}
  #searchwrap{margin-left:8px}
  #search{width:120px;font-size:14px;padding:4px 10px}
  #sresults{width:220px}

  /* show empty state in panel (always visible) */
  .pempty{display:block;padding:14px 16px;font-size:13.5px}
  .biotext{max-height:110px}

  /* legend compact */
  #legend{top:56px;left:8px;width:auto;max-width:60vw;font-size:13.5px;padding:6px 9px}

  /* scrubber compact */
  #scrubberbar{gap:9px;padding:0 12px}
  #allwrap{font-size:12px}
  #year{min-width:0}
  #yearlab{min-width:68px;font-size:13.5px}

  /* modal: tabs smaller, content readable */
  .mbox{width:94vw;max-height:88vh;padding:0 16px 20px}
  .mtabs{gap:1px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding:12px 0 10px}
  .mtab{font-size:12.5px;padding:5px 7px;white-space:nowrap;letter-spacing:0}
  .mpage h2{font-size:17px}
  .mpage p,.mpage ul,.mpage ol{font-size:14px}
}

/* about / info modal */
.modal{position:fixed;inset:0;z-index:60;background:rgba(46,36,23,.55);display:flex;align-items:center;justify-content:center;padding:24px}
.modal[hidden]{display:none}
.mbox{position:relative;width:min(680px,92vw);max-height:86vh;overflow-y:auto;
  background:linear-gradient(#f6eed9,#efe3c4);border:1px solid var(--paper-edge);border-radius:12px;
  box-shadow:0 12px 40px rgba(30,20,8,.5);padding:0 30px 30px}
.mclose{position:absolute;top:10px;right:16px;font-size:28px;line-height:1;color:var(--ink-soft);background:none;border:none;cursor:pointer;z-index:2}
.mclose:hover{color:var(--accent)}
.mtabs{position:sticky;top:0;background:#f4ead2;display:flex;gap:6px;padding:16px 0 12px;border-bottom:1px solid var(--paper-edge);margin-bottom:4px}
.mtab{font-family:inherit;font-size:16px;color:var(--ink-soft);background:none;border:none;padding:6px 14px;border-radius:16px;cursor:pointer}
.mtab:hover{background:rgba(122,59,29,.1)}
.mtab.on{background:var(--accent);color:#fbf5e3}
.mpage[hidden]{display:none}
.mpage h2{font-size:22px;margin:16px 0 10px;color:var(--ink);font-weight:700}
.mpage p{font-size:16px;line-height:1.75;margin:8px 0}
.mpage ul,.mpage ol{font-size:16px;line-height:1.8;margin:8px 0;padding-left:24px}
.mpage li{margin:5px 0}
.mpage ol{counter-reset:none}
.mpage ol li{padding-left:2px}
.mpage code{font-family:Consolas,"Courier New",monospace;font-size:14px;background:#e7d6ab;padding:1px 5px;border-radius:4px}
.mpage b{color:var(--ink)}
.mspread{margin-top:14px !important;padding:10px 14px;background:#efe1bd;border:1px solid var(--paper-edge);
  border-radius:8px;font-size:15.5px !important}
.mspread a{color:var(--accent);font-weight:600}