:root{
  color-scheme:dark;
  --bg:#070b0e;--panel:rgba(13,20,25,.94);--line:#2d3b44;
  --accent:#14d9a0;--text:#f5f7f8;--muted:#9eabb2;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body,#app{width:100%;height:100%;margin:0;overflow:hidden;background:var(--bg);font-family:Inter,ui-sans-serif,system-ui,sans-serif;color:var(--text)}
body{touch-action:none}
header{
  height:78px;padding:12px max(18px,env(safe-area-inset-right)) 10px max(18px,env(safe-area-inset-left));
  display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#0d151a,#091015);position:relative;z-index:5
}
header small{font-size:10px;letter-spacing:.22em;color:var(--accent)}
header h1{font-size:22px;margin:4px 0 0;letter-spacing:.08em}
.status{font-size:11px;letter-spacing:.16em;color:var(--muted)}
.status span{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}
main{height:calc(100% - 78px);display:grid;grid-template-columns:250px 1fr 260px}
.panel{background:var(--panel);padding:14px;border-color:var(--line);overflow:auto}
.left-panel{border-right:1px solid var(--line)}
.right-panel{border-left:1px solid var(--line)}
h2{font-size:11px;letter-spacing:.19em;color:var(--muted);margin:8px 0 10px}
button{
  width:100%;min-height:38px;margin:4px 0;border:1px solid #34454f;border-radius:8px;
  background:#111a20;color:#e8edef;font-weight:700;font-size:11px;letter-spacing:.08em
}
button.active,button:active{border-color:var(--accent);color:var(--accent);background:#10231f}
label{display:block;font-size:11px;color:var(--muted);margin:10px 0}
input[type=range]{width:100%;accent-color:var(--accent)}
#viewport-wrap{position:relative;min-width:0;background:radial-gradient(circle at 50% 42%,#34414a 0,#182127 43%,#080d10 100%)}
#viewport{width:100%;height:100%;display:block}
#loading{position:absolute;inset:0;display:grid;place-items:center;background:#080d11;color:var(--accent);font-size:13px;letter-spacing:.17em;z-index:4}
#part-readout{position:absolute;left:50%;bottom:20px;transform:translateX(-50%);padding:10px 18px;border:1px solid #3a4a52;border-radius:999px;background:rgba(5,10,13,.76);text-align:center;pointer-events:none}
#part-readout b{display:block;font-size:12px;letter-spacing:.16em}
#part-readout small{display:block;color:var(--muted);font-size:9px;letter-spacing:.13em;margin-top:3px}
.view-buttons{position:absolute;left:50%;top:12px;transform:translateX(-50%);display:flex;gap:5px}
.view-buttons button{width:auto;padding:0 12px;min-height:34px}
.list-button{text-align:left;padding:0 10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.scroll{max-height:calc(100vh - 280px);overflow:auto}
.material-grid{display:grid;grid-template-columns:1fr 1fr;gap:4px}
.instructions{margin-top:18px;padding:12px;border:1px solid var(--line);border-radius:10px;background:#0b1216}
.instructions b,.instructions span{display:block}
.instructions b{font-size:11px;color:var(--accent);margin-bottom:6px}
.instructions span{font-size:10px;color:var(--muted);margin:4px 0}
.socket-marker{color:#ffcf68}
@media(max-width:900px){
  header{height:58px}
  header h1{font-size:15px}header small{font-size:8px}.status{display:none}
  main{height:calc(100% - 58px);grid-template-columns:1fr}
  .left-panel{display:none}
  .right-panel{
    position:absolute;right:8px;top:66px;width:180px;max-height:calc(100% - 76px);
    border:1px solid var(--line);border-radius:12px;z-index:3;background:rgba(9,15,19,.90);
    padding:8px
  }
  .right-panel h2,.instructions{display:none}
  .right-panel button{min-height:31px;font-size:9px;margin:2px 0}
  .material-grid{display:none}
  .view-buttons{top:8px;left:8px;transform:none;max-width:calc(100% - 205px);overflow-x:auto}
  .view-buttons button{padding:0 9px;min-height:30px;font-size:9px}
  #part-readout{bottom:10px;max-width:70%}
}

#loading.error{
  padding:24px;
  color:#ff7878;
  text-align:center;
}
#loading.error div{
  max-width:560px;
  padding:22px;
  border:1px solid rgba(255,100,100,.55);
  border-radius:14px;
  background:rgba(35,8,12,.88);
}
#loading.error b,
#loading.error span,
#loading.error small{
  display:block;
}
#loading.error b{
  font-size:15px;
  letter-spacing:.14em;
}
#loading.error span{
  margin-top:12px;
  color:#ffd1d1;
  font-size:12px;
  word-break:break-word;
}
#loading.error small{
  margin-top:10px;
  color:#baa3a7;
  font-size:10px;
}

.quality-card{
  margin:12px 0;
  padding:11px;
  border:1px solid rgba(20,217,160,.35);
  border-radius:10px;
  background:rgba(10,35,29,.48);
}
.quality-card b,.quality-card span{display:block}
.quality-card b{
  color:var(--accent);
  font-size:10px;
  letter-spacing:.14em;
  margin-bottom:5px;
}
.quality-card span{
  color:var(--muted);
  font-size:9px;
  margin:3px 0;
}

/* V1.7 responsive game-ready layout */
html,body{overscroll-behavior:none}
#app{min-height:100%;height:auto}
main{min-height:calc(100svh - 78px);height:auto}
#viewport-wrap{min-height:620px;overflow:hidden}
#weapon-hud{
  position:absolute;left:18px;right:18px;bottom:18px;
  display:flex;align-items:flex-end;justify-content:space-between;gap:12px;
  pointer-events:none;z-index:3
}
.ammo-block{
  padding:12px 16px;border:1px solid rgba(120,145,158,.48);
  border-radius:14px;background:rgba(7,12,15,.78);backdrop-filter:blur(10px)
}
.ammo-block span,.ammo-block small{display:block}
.ammo-block>span{font-size:10px;letter-spacing:.18em;color:var(--accent)}
.ammo-block b{display:flex;align-items:baseline;gap:7px;font-size:34px;line-height:1;margin-top:3px}
.ammo-block b span{display:inline}.ammo-block i{font-style:normal;color:var(--accent)}
.ammo-block small{font-size:9px;color:var(--muted);letter-spacing:.13em;margin-top:5px}
.action-row{display:flex;gap:8px;pointer-events:auto}
.action-row button{width:auto;min-width:88px;padding:0 16px;min-height:48px}
.primary-action{border-color:#e15b5b!important;color:#fff!important;background:rgba(94,17,20,.88)!important}
#muzzle-flash{
  position:absolute;width:44px;height:44px;border-radius:50%;
  opacity:0;pointer-events:none;z-index:2;
  background:radial-gradient(circle,#fff 0 12%,#ffd77d 20%,#ff8b30 42%,transparent 72%);
  filter:blur(.3px)
}
#muzzle-flash.active{animation:muzzleFlash .085s ease-out}
@keyframes muzzleFlash{0%{opacity:1;transform:scale(.45)}55%{opacity:.9;transform:scale(1.35)}100%{opacity:0;transform:scale(1.8)}}
.shell{
  position:absolute;width:9px;height:4px;border-radius:2px;background:#c3a65f;
  box-shadow:0 0 5px rgba(255,215,125,.5);pointer-events:none;z-index:3
}
.inspection-grid{display:grid;grid-template-columns:1fr 1fr;gap:4px}
#part-readout{bottom:98px}
.quality-card{margin-bottom:10px}
@media(max-width:900px){
  html,body,#app{overflow:auto}
  header{position:sticky;top:0;z-index:10}
  main{
    display:grid;grid-template-columns:1fr;
    min-height:calc(100svh - 58px);height:auto
  }
  #viewport-wrap{
    order:1;min-height:calc(100svh - 58px);height:calc(100svh - 58px);
    width:100%;overflow:hidden
  }
  .right-panel{
    order:2;position:relative;right:auto;top:auto;width:100%;max-height:none;
    border:0;border-top:1px solid var(--line);border-radius:0;
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;
    padding:10px;background:#0a1115
  }
  .right-panel h2,.right-panel label,.quality-card,.instructions{grid-column:1/-1}
  .right-panel button{min-height:42px}
  .material-grid,.inspection-grid{grid-column:1/-1}
  .left-panel{display:none}
  .view-buttons{
    left:8px;right:8px;top:8px;max-width:none;width:calc(100% - 16px);
    display:flex;overflow-x:auto;padding-bottom:4px
  }
  .view-buttons button{flex:0 0 auto}
  #weapon-hud{left:10px;right:10px;bottom:12px;align-items:flex-end}
  .ammo-block{padding:9px 11px}
  .ammo-block b{font-size:28px}
  .action-row{display:grid;grid-template-columns:repeat(3,1fr);gap:5px}
  .action-row button{min-width:0;padding:0 10px;min-height:44px;font-size:10px}
  #part-readout{bottom:88px;max-width:62%;padding:8px 13px}
}
@media(max-width:520px){
  header h1{font-size:13px}
  #viewport-wrap{min-height:calc(100svh - 58px)}
  .ammo-block small{display:none}
  .action-row button{font-size:9px;padding:0 8px}
  #part-readout{display:none}
}