/* Weltall verstehen – Oberfläche */

:root{
  --bg:#05070f;
  --panel:rgba(10,16,30,.86);
  --panel-solid:#0a1020;
  --line:rgba(120,160,220,.18);
  --text:#e8eefc;
  --muted:#8ea3c8;
  --accent:#5ad1ff;
  --accent2:#ffc65a;
  --radius:14px;
  --font: "Segoe UI", Inter, system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
}

*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
}
canvas#scene{position:fixed;inset:0;display:block;touch-action:none;cursor:grab}
canvas#scene.grabbing{cursor:grabbing}

button{font-family:inherit;color:inherit;cursor:pointer}
.muted{color:var(--muted)}
.small{font-size:12px}

/* ---------- Ladebildschirm ---------- */
#loader{
  position:fixed;inset:0;z-index:100;
  background:radial-gradient(ellipse at 50% 40%, #101c3a 0%, #05070f 70%);
  display:flex;align-items:center;justify-content:center;
  transition:opacity .6s ease;
}
#loader.gone{opacity:0;pointer-events:none}
.loader-inner{text-align:center}
.loader-inner h1{font-size:26px;margin:22px 0 6px;font-weight:600;letter-spacing:.5px}
.loader-inner p{color:var(--muted);margin:0;font-size:14px}
.loader-ring{
  width:64px;height:64px;margin:0 auto;border-radius:50%;
  border:2px solid rgba(90,209,255,.15);border-top-color:var(--accent);
  animation:spin 1.1s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- Kopfleiste ---------- */
#topbar{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;gap:18px;
  padding:10px 16px;
  background:linear-gradient(180deg, rgba(5,7,15,.92) 0%, rgba(5,7,15,0) 100%);
  pointer-events:none;
}
#topbar > *{pointer-events:auto}
.brand{display:flex;align-items:center;gap:10px;min-width:190px}
.brand .dot{
  width:22px;height:22px;border-radius:50%;
  background:radial-gradient(circle at 35% 32%, #fff6d0, #ffb03a 45%, #ff6a00 75%);
  box-shadow:0 0 18px rgba(255,150,40,.6);flex:none;
}
.brand strong{display:block;font-size:15px;font-weight:600;line-height:1.15}
.brand small{display:block;color:var(--muted);font-size:11px}

#levels{display:flex;gap:6px;flex-wrap:wrap}
#levels button{
  background:rgba(16,26,48,.7);border:1px solid var(--line);
  padding:7px 13px;border-radius:999px;font-size:13px;
  display:flex;align-items:center;gap:7px;transition:.18s;
  backdrop-filter:blur(8px);
}
#levels button:hover{border-color:rgba(90,209,255,.5);background:rgba(24,40,72,.8)}
#levels button.active{
  background:linear-gradient(180deg, rgba(90,209,255,.22), rgba(90,209,255,.09));
  border-color:rgba(90,209,255,.75);
  box-shadow:0 0 22px rgba(90,209,255,.18);
}
#levels .num{
  font-family:var(--mono);font-size:10px;opacity:.65;
  border:1px solid var(--line);border-radius:5px;padding:1px 4px;
}
.top-actions{margin-left:auto;display:flex;gap:8px}
button.ghost{
  background:rgba(16,26,48,.7);border:1px solid var(--line);
  padding:7px 13px;border-radius:10px;font-size:13px;transition:.18s;
  backdrop-filter:blur(8px);
}
button.ghost:hover{border-color:rgba(90,209,255,.5);color:#fff}
button.wide{width:100%;margin-top:8px}
#btn-help{width:34px;padding:7px 0;text-align:center}

/* ---------- Maßstab ---------- */
#scalebar{
  position:fixed;top:64px;left:16px;z-index:20;width:250px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:11px 13px;backdrop-filter:blur(10px);
}
.scale-label{font-size:10px;text-transform:uppercase;letter-spacing:1.2px;color:var(--muted)}
.scale-value{font-size:13px;margin:3px 0 8px;font-weight:500}
.scale-track{height:4px;background:rgba(255,255,255,.07);border-radius:3px;overflow:hidden}
.scale-fill{height:100%;width:8%;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .6s ease}
.scale-ticks{display:flex;justify-content:space-between;margin-top:5px;font-size:9px;color:var(--muted);font-family:var(--mono)}

/* ---------- Steuerpult ---------- */
#controls{
  position:fixed;left:16px;bottom:16px;z-index:20;width:250px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:12px 13px;backdrop-filter:blur(10px);
}
.row{display:flex;align-items:center;gap:10px}
.time-row{margin-bottom:9px}
#btn-play{
  width:38px;height:38px;flex:none;border-radius:10px;
  background:rgba(90,209,255,.14);border:1px solid rgba(90,209,255,.45);
  font-size:13px;color:var(--accent);
}
#btn-play:hover{background:rgba(90,209,255,.24)}
.time-info{line-height:1.3;min-width:0}
.time-label{font-size:9px;text-transform:uppercase;letter-spacing:.9px;color:var(--muted);margin-bottom:1px}
#sim-date{font-size:14px;font-family:var(--mono);white-space:nowrap}
#sim-date .heute{color:var(--accent);font-size:11px;letter-spacing:.5px}
#sim-speed{font-size:11px}

/* Datumszeile: zurück zu heute oder frei wählen */
.date-row{gap:7px;margin-bottom:10px}
#btn-now{
  flex:none;background:rgba(90,209,255,.13);border:1px solid rgba(90,209,255,.42);
  color:var(--accent);padding:5px 11px;border-radius:8px;font-size:12px;
}
#btn-now:hover{background:rgba(90,209,255,.26)}
#date-pick{
  flex:1;min-width:0;background:rgba(16,26,48,.8);border:1px solid var(--line);
  color:var(--text);border-radius:8px;padding:4px 7px;font-family:var(--mono);font-size:11.5px;
  color-scheme:dark;
}
#date-pick:hover{border-color:rgba(90,209,255,.5)}
input[type=range]{
  width:100%;-webkit-appearance:none;appearance:none;height:4px;border-radius:3px;
  background:linear-gradient(90deg,var(--accent),rgba(90,209,255,.18));outline:none;margin:2px 0 10px;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:15px;height:15px;border-radius:50%;
  background:#fff;border:2px solid var(--accent);cursor:pointer;
}
input[type=range]::-moz-range-thumb{
  width:13px;height:13px;border-radius:50%;background:#fff;border:2px solid var(--accent);cursor:pointer;
}
.toggles{flex-wrap:wrap;gap:6px 12px;font-size:12px;color:var(--muted)}
.toggles label{display:flex;align-items:center;gap:5px;cursor:pointer}
.toggles input{accent-color:var(--accent);cursor:pointer}

/* ---------- Sprungliste ---------- */
#jumplist{
  position:fixed;right:16px;top:64px;z-index:20;width:186px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:10px;backdrop-filter:blur(10px);
  max-height:calc(100vh - 96px);overflow:auto;
  transition:opacity .3s, transform .3s;
}
#jumplist.hidden{opacity:0;pointer-events:none;transform:translateX(12px)}
/* Bei offenem Infofenster nach links rücken, sonst liegt die Liste darunter */
#jumplist.verschoben{right:416px}
.jump-title{font-size:10px;text-transform:uppercase;letter-spacing:1.2px;color:var(--muted);margin-bottom:7px}
#jump-items button{
  display:flex;align-items:center;gap:8px;width:100%;text-align:left;
  background:none;border:none;padding:5px 6px;border-radius:8px;font-size:12.5px;transition:.15s;
}
#jump-items button:hover{background:rgba(90,209,255,.13)}
#jump-items .swatch{width:9px;height:9px;border-radius:50%;flex:none}
#jump-items .grp{
  font-size:10px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);
  margin:9px 0 3px;padding-left:6px;
}

/* ---------- Bedienleiste Erde ---------- */
#earthbar{
  position:fixed;left:50%;transform:translateX(-50%);bottom:16px;z-index:22;
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:center;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:10px 16px;backdrop-filter:blur(10px);max-width:calc(100vw - 300px);
}
#earthbar.hidden{display:none}
.eb-group{display:flex;align-items:center;gap:6px}
.eb-title{font-size:10px;text-transform:uppercase;letter-spacing:1.2px;color:var(--muted);margin-right:4px}
.eb-group button{
  background:rgba(16,26,48,.75);border:1px solid var(--line);
  padding:6px 12px;border-radius:9px;font-size:12.5px;transition:.18s;
}
.eb-group button:hover{border-color:rgba(90,209,255,.5)}
.eb-group button.active{
  background:linear-gradient(180deg,rgba(90,209,255,.24),rgba(90,209,255,.1));
  border-color:rgba(90,209,255,.7);
}
.eb-checks{gap:6px 14px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.eb-checks label{display:flex;align-items:center;gap:5px;cursor:pointer}
.eb-checks input{accent-color:var(--accent);cursor:pointer}
.eb-readout{
  font-family:var(--mono);font-size:11.5px;line-height:1.5;color:var(--muted);
  border-left:1px solid var(--line);padding-left:14px;white-space:nowrap;
}
.eb-readout b{color:var(--text);font-weight:500}

/* ---------- Info-Panel ---------- */
#info{
  position:fixed;right:0;top:52px;bottom:0;z-index:40;width:400px;max-width:92vw;
  background:linear-gradient(180deg, rgba(9,14,28,.97), rgba(6,9,20,.97));
  border-left:1px solid var(--line);
  backdrop-filter:blur(16px);
  display:flex;flex-direction:column;
  transition:transform .35s cubic-bezier(.22,.8,.3,1);
  box-shadow:-24px 0 60px rgba(0,0,0,.5);
}
#info.hidden{transform:translateX(102%)}
#info-close{
  position:absolute;top:12px;right:12px;width:32px;height:32px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:9px;
  font-size:19px;line-height:1;
}
#info-close:hover{background:rgba(255,255,255,.14)}
.info-head{padding:24px 22px 16px;border-bottom:1px solid var(--line)}
.info-kicker{
  font-size:10px;text-transform:uppercase;letter-spacing:1.6px;
  color:var(--accent);margin-bottom:7px;
}
.info-head h2{margin:0;font-size:25px;font-weight:600;letter-spacing:-.3px}
.info-sub{color:var(--muted);font-size:13px;margin-top:5px}
.info-body{padding:18px 22px 40px;overflow-y:auto;flex:1;font-size:14px;line-height:1.62}
#info-facts{width:100%;border-collapse:collapse;margin-bottom:18px;font-size:13px}
#info-facts td{padding:6px 0;border-bottom:1px solid rgba(120,160,220,.1);vertical-align:top}
#info-facts td:first-child{color:var(--muted);width:44%;padding-right:10px}
#info-facts td:last-child{font-family:var(--mono);font-size:12.5px;text-align:right}
#info-text p{margin:0 0 13px}
#info-text b{color:#fff}
#info-text .box{
  background:rgba(90,209,255,.07);border-left:2px solid var(--accent);
  padding:11px 13px;border-radius:0 9px 9px 0;margin:15px 0;font-size:13px;
}
#info-text .box b{color:var(--accent)}

/* Mini-Rechner im Info-Panel */
.calc{
  background:rgba(255,198,90,.07);border:1px solid rgba(255,198,90,.25);
  border-radius:11px;padding:13px;margin-top:16px;
}
.calc h4{margin:0 0 9px;font-size:13px;color:var(--accent2);font-weight:600}
.calc label{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
.calc input[type=range]{background:linear-gradient(90deg,var(--accent2),rgba(255,198,90,.18))}
.calc input[type=range]::-webkit-slider-thumb{border-color:var(--accent2)}
.calc-out{font-family:var(--mono);font-size:13px;line-height:1.8}
.calc-out b{color:#fff}

/* ---------- Tour ---------- */
#tour{
  position:fixed;left:50%;transform:translateX(-50%);bottom:20px;z-index:35;
  width:600px;max-width:calc(100vw - 32px);
  background:var(--panel);border:1px solid rgba(90,209,255,.35);border-radius:var(--radius);
  padding:15px 18px;backdrop-filter:blur(12px);
  box-shadow:0 14px 44px rgba(0,0,0,.5);
}
#tour.hidden{display:none}
.tour-step{font-size:10px;letter-spacing:1.4px;text-transform:uppercase;color:var(--accent);margin-bottom:6px}
.tour-text{font-size:14.5px;line-height:1.6;margin-bottom:13px}
.tour-text b{color:#fff}
.tour-nav{display:flex;gap:8px}
.tour-nav button{
  padding:8px 17px;border-radius:10px;font-size:13px;border:1px solid var(--line);
  background:rgba(16,26,48,.8);
}
#tour-next{background:linear-gradient(180deg,rgba(90,209,255,.28),rgba(90,209,255,.12));border-color:rgba(90,209,255,.6)}
#tour-exit{margin-left:auto}

/* ---------- Hilfe ---------- */
#help{position:fixed;inset:0;z-index:60;background:rgba(3,5,12,.72);display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px)}
#help.hidden{display:none}
.help-card{
  position:relative;width:440px;max-width:92vw;
  background:var(--panel-solid);border:1px solid var(--line);border-radius:16px;padding:26px;
}
.help-card h3{margin:0 0 14px;font-size:18px;font-weight:600}
.help-card ul{margin:0 0 14px;padding-left:18px;line-height:1.9;font-size:14px}
.help-card b{color:var(--accent)}
#help-close{position:absolute;top:12px;right:12px;width:30px;height:30px;background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:8px;font-size:18px}

/* ---------- Hinweis ---------- */
#hint{
  position:fixed;left:50%;transform:translateX(-50%);bottom:22px;z-index:15;
  font-size:12.5px;color:var(--muted);
  background:rgba(8,12,24,.7);padding:7px 15px;border-radius:999px;border:1px solid var(--line);
  transition:opacity .5s;pointer-events:none;
}
#hint.gone{opacity:0}

/* ---------- Raumschiff-Cockpit ---------- */
#cockpit{position:fixed;inset:0;z-index:28;pointer-events:none}
#cockpit.hidden{display:none}
/* Eigene, niedrige Ebene: die Kanzel liegt über der 3D-Szene, aber unter
   allen Bedienfeldern — sonst verdeckt sie Zeitleiste und Objektliste. */
.ck-canopy{
  position:fixed;inset:0;width:100%;height:100%;z-index:12;
  pointer-events:none;
  filter:drop-shadow(0 0 26px rgba(0,0,0,.7));
  transition:opacity .35s;
}
.ck-canopy.hidden{display:none}
.ck-canopy.aus{opacity:0}
.ck-frame{position:absolute;inset:0}
.ck-corner{position:absolute;width:46px;height:46px;border:2px solid rgba(90,209,255,.5)}
.ck-corner.tl{top:64px;left:24px;border-right:0;border-bottom:0}
.ck-corner.tr{top:64px;right:24px;border-left:0;border-bottom:0}
.ck-corner.bl{bottom:24px;left:24px;border-right:0;border-top:0}
.ck-corner.br{bottom:24px;right:24px;border-left:0;border-top:0}
.ck-cross{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:44px;height:44px}
.ck-cross span{position:absolute;background:rgba(90,209,255,.65)}
.ck-cross span:first-child{left:50%;top:0;width:1px;height:100%;transform:translateX(-50%)}
.ck-cross span:last-child{top:50%;left:0;height:1px;width:100%;transform:translateY(-50%)}
.ck-cross::after{
  content:"";position:absolute;left:50%;top:50%;width:14px;height:14px;
  transform:translate(-50%,-50%);border:1px solid rgba(90,209,255,.5);border-radius:50%;
}
.ck-hud{
  position:absolute;top:64px;left:50%;transform:translateX(-50%);
  display:flex;gap:26px;background:rgba(8,14,28,.72);border:1px solid rgba(90,209,255,.3);
  border-radius:12px;padding:9px 20px;backdrop-filter:blur(8px);
}
.ck-block{text-align:center;min-width:104px}
.ck-label{display:block;font-size:9px;letter-spacing:1.3px;text-transform:uppercase;color:var(--muted)}
.ck-value{display:block;font-family:var(--mono);font-size:14px;color:var(--accent);margin-top:2px;white-space:nowrap}
.ck-controls{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  display:flex;align-items:center;gap:8px;pointer-events:auto;
  background:rgba(8,14,28,.78);border:1px solid rgba(90,209,255,.3);
  border-radius:12px;padding:9px 12px;backdrop-filter:blur(8px);
}
.ck-controls button{
  background:rgba(90,209,255,.12);border:1px solid rgba(90,209,255,.4);color:var(--accent);
  width:38px;height:34px;border-radius:9px;font-size:16px;
}
.ck-controls button:hover{background:rgba(90,209,255,.26)}
.ck-controls button.ck-wide{width:auto;padding:0 13px;font-size:12.5px;white-space:nowrap}
.ck-controls button.ck-highlight{
  background:linear-gradient(180deg,rgba(255,198,90,.28),rgba(255,198,90,.12));
  border-color:rgba(255,198,90,.6);color:var(--accent2);
}
.ck-controls button.ck-highlight:hover{background:rgba(255,198,90,.34)}
.ck-controls button.ck-highlight.laeuft{
  background:linear-gradient(180deg,rgba(255,120,90,.3),rgba(255,120,90,.12));
  border-color:rgba(255,140,100,.65);color:#ffb59a;
}
.ck-throttle{width:130px;height:7px;background:rgba(255,255,255,.08);border-radius:4px;overflow:hidden}
.ck-throttle-fill{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .12s}
.ck-hints{
  position:absolute;bottom:92px;left:50%;transform:translateX(-50%);
  font-size:11.5px;color:var(--muted);white-space:nowrap;
  max-width:calc(100vw - 700px);overflow:hidden;text-overflow:ellipsis;
}
.ck-hints b{color:var(--accent);font-weight:600}

/* ---------- Bord-Expertin ---------- */
#expert{
  position:fixed;right:16px;bottom:16px;z-index:32;width:330px;max-width:calc(100vw - 32px);
  background:var(--panel);border:1px solid rgba(90,209,255,.35);border-radius:var(--radius);
  padding:13px 15px;backdrop-filter:blur(12px);
  box-shadow:0 14px 40px rgba(0,0,0,.5);
  transition:opacity .3s, transform .3s;
}
#expert.hidden{opacity:0;pointer-events:none;transform:translateY(12px)}
.ex-head{display:flex;align-items:center;gap:10px;margin-bottom:9px;position:relative}
.ex-avatar{flex:none;line-height:0}
.ex-head strong{display:block;font-size:14px;line-height:1.2}
.ex-head small{display:block;font-size:11px;color:var(--muted)}
#ex-close{
  position:absolute;right:0;top:0;width:24px;height:24px;background:none;
  border:1px solid var(--line);border-radius:7px;font-size:15px;line-height:1;color:var(--muted);
}
#ex-voice{
  position:absolute;right:30px;top:0;width:26px;height:24px;background:none;
  border:1px solid var(--line);border-radius:7px;font-size:12px;line-height:1;
}
#ex-voice.an{border-color:rgba(90,209,255,.6);background:rgba(90,209,255,.15)}
#ex-voice.aus{opacity:.45}
.ex-spricht{display:flex;gap:3px;align-items:flex-end;height:10px;margin-top:8px}
.ex-spricht span{
  width:3px;background:var(--accent);border-radius:2px;
  animation:pegel .9s ease-in-out infinite;
}
.ex-spricht span:nth-child(2){animation-delay:.15s}
.ex-spricht span:nth-child(3){animation-delay:.3s}
.ex-spricht span:nth-child(4){animation-delay:.45s}
.ex-spricht span:nth-child(5){animation-delay:.6s}
@keyframes pegel{0%,100%{height:3px}50%{height:10px}}
.ex-text{font-size:13.5px;line-height:1.6}
.ex-text b{color:#fff}
.ex-more{
  margin-top:10px;width:100%;background:rgba(90,209,255,.12);
  border:1px solid rgba(90,209,255,.35);border-radius:9px;padding:7px;font-size:12.5px;color:var(--accent);
}
.ex-more:hover{background:rgba(90,209,255,.24)}

@media (max-width:900px){
  .ck-hints{display:none}
  .ck-hud{gap:12px;padding:7px 12px;top:auto;bottom:150px}
  .ck-block{min-width:78px}
  #expert{width:calc(100vw - 32px);bottom:96px}
}

/* ---------- Tooltip beim Überfahren ---------- */
#tooltip{
  position:fixed;z-index:25;pointer-events:none;
  background:rgba(8,12,24,.94);border:1px solid rgba(90,209,255,.4);
  padding:5px 10px;border-radius:8px;font-size:12.5px;white-space:nowrap;
  transform:translate(14px,-50%);display:none;
}

/* ---------- Mobil ---------- */
@media (max-width:900px){
  #jumplist{display:none}
  #scalebar{width:calc(100vw - 24px);left:12px;top:auto;bottom:172px;padding:8px 11px}
  #controls{width:calc(100vw - 24px);left:12px;bottom:12px;padding:10px 11px}
  #topbar{padding:8px 12px;gap:10px}
  .brand{min-width:0}
  .brand small{display:none}
  .brand strong{font-size:13px}
  /* Die Ebenenleiste muss schrumpfen dürfen, sonst schiebt sie die
     Knöpfe rechts aus dem Bild bzw. überlappt sie. */
  #levels{
    flex:1 1 0;min-width:0;
    flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;
  }
  #levels::-webkit-scrollbar{display:none}
  #levels button{padding:6px 11px;font-size:12px;white-space:nowrap;flex:none}
  #levels .num{display:none}
  .top-actions{margin-left:0;flex:none;gap:6px}
  #btn-tour,#btn-ship{font-size:0;padding:7px 10px}
  #btn-tour::before{content:"▶";font-size:13px}
  #btn-ship::before{content:"🚀";font-size:14px}
  #info{width:100%;top:52px}
  #hint{display:none}
  #tour{bottom:auto;top:64px}
  .toggles{font-size:11.5px}
  #sim-date{font-size:13px}
}