:root{
  --bg:#05060a;
  --panel:rgba(12,16,26,0.78);
  --line:rgba(255,255,255,0.09);
  --amber:#ffb347;
  --good:#57d98a;
  --warn:#ffc761;
  --bad:#ff5d5d;
  --text:#dfe6f1;
  --dim:#8b94a7;
  --mono:ui-monospace,"SFMono-Regular","Cascadia Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html,body{margin:0;height:100%;overflow:hidden;background:var(--bg);}
body{font-family:var(--mono);color:var(--text);font-size:14px;}
button{font-family:var(--mono);}
#app{position:fixed;inset:0;}
#scene{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none;}
.hidden{display:none !important;}

/* ============ HUD ============ */
#hud{position:absolute;inset:0;pointer-events:none;z-index:10;}
#hud .panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);padding:10px 14px;}
.hud-top{position:absolute;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;align-items:flex-start;gap:10px;}
.mission{min-width:0;}
.mission-name{font-size:13px;letter-spacing:0.18em;color:var(--amber);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.mission-sub{display:flex;gap:16px;margin-top:4px;font-size:12px;color:var(--dim);}
.mission-sub b{color:var(--text);}
.hud-buttons{display:flex;gap:8px;flex-shrink:0;}
.icon-btn{pointer-events:auto;cursor:pointer;background:var(--panel);border:1px solid var(--line);border-radius:9px;color:var(--text);padding:8px 10px;font-size:10px;letter-spacing:0.08em;line-height:1.1;backdrop-filter:blur(8px);}
.icon-btn small{display:block;color:var(--dim);font-size:10px;margin-top:2px;letter-spacing:0.06em;}
.icon-btn.on small{color:var(--good);}
.icon-btn:hover{border-color:rgba(255,179,71,0.5);}

.hud-center{position:absolute;top:24%;left:0;right:0;display:flex;justify-content:center;pointer-events:none;}
.banner{font-size:clamp(26px,5vw,54px);font-weight:700;letter-spacing:0.22em;color:var(--text);text-shadow:0 0 24px rgba(120,160,255,0.35),0 2px 0 rgba(0,0,0,0.6);text-align:center;padding:0 16px;}
.banner.ok{color:var(--good);}
.banner.warn{color:var(--warn);}
.banner.bad{color:var(--bad);}
.banner.show{animation:bannerIn 0.25s ease-out;}
@keyframes bannerIn{from{opacity:0;transform:scale(0.92);}to{opacity:1;transform:scale(1);}}

.hud-bottom{position:absolute;left:12px;right:12px;bottom:12px;display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap;}
.telemetry{min-width:300px;}
.readouts{display:flex;gap:18px;}
.r label{display:block;font-size:10px;letter-spacing:0.14em;color:var(--dim);}
.r b{font-size:17px;font-weight:700;}
.r i{font-style:normal;font-size:10px;color:var(--dim);margin-left:3px;}
.r b.ok{color:var(--good);}
.r b.warn{color:var(--bad);}
.fuel,.thr{margin-top:8px;}
.fuel label,.thr label{display:inline-block;font-size:10px;letter-spacing:0.14em;color:var(--dim);width:58px;vertical-align:middle;}
.fuel-bar,.thr-bar{display:inline-block;width:170px;height:9px;border:1px solid var(--line);border-radius:5px;background:rgba(0,0,0,0.45);vertical-align:middle;overflow:hidden;}
.fuel-fill{height:100%;width:100%;background:linear-gradient(90deg,#57d98a,#9fe8c0);border-radius:4px;transition:width 0.15s linear;}
.fuel-fill.low{background:linear-gradient(90deg,#ff5d5d,#ffb347);}
.thr-fill{height:100%;width:0%;background:linear-gradient(90deg,#ffb347,#ffe0a0);border-radius:4px;transition:width 0.1s linear;}
#hudFuelPct{font-size:10px;color:var(--dim);margin-left:8px;}

.guidance{display:flex;gap:12px;align-items:center;padding:10px 12px;}
#horizon{width:132px;height:132px;display:block;}
.padinfo{min-width:130px;}
.pad-line{margin:3px 0;font-size:13px;}
.pad-line .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--amber);margin-right:6px;}
.pad-line .bear{display:inline-block;color:var(--amber);margin-right:6px;transition:transform 0.2s linear;}
.pad-line.small{font-size:10px;color:var(--dim);letter-spacing:0.08em;}
.pad-line .dark{color:var(--dim);font-size:12px;margin-left:2px;}
.vv{display:block;margin-top:1px;}
.radar-panel{padding:10px;}
#radar{width:120px;height:120px;display:block;}
.radar-label{text-align:center;font-size:10px;color:var(--dim);letter-spacing:0.14em;margin-top:6px;}

/* ============ touch ============ */
#touch{position:absolute;inset:0;pointer-events:none;z-index:11;}
.stick{position:absolute;left:20px;bottom:110px;width:124px;height:124px;pointer-events:auto;touch-action:none;}
.stick-ring{position:absolute;inset:0;border-radius:50%;border:1.5px solid rgba(255,255,255,0.22);background:rgba(10,14,22,0.35);backdrop-filter:blur(4px);}
.stick-knob{position:absolute;left:50%;top:50%;width:52px;height:52px;border-radius:50%;background:rgba(255,179,71,0.5);border:1.5px solid rgba(255,179,71,0.8);transform:translate(-50%,-50%);}
.touch-right{position:absolute;right:20px;bottom:110px;display:flex;flex-direction:column;align-items:center;gap:12px;pointer-events:auto;}
.tbtn{width:88px;height:88px;border-radius:50%;border:1.5px solid var(--line);background:rgba(10,14,22,0.5);color:var(--text);font-size:26px;backdrop-filter:blur(4px);touch-action:none;}
.tbtn small{display:block;font-size:10px;letter-spacing:0.1em;color:var(--dim);}
.tbtn.thrust{border-color:rgba(255,179,71,0.7);color:var(--amber);}
.tbtn.small{width:52px;height:52px;font-size:20px;}
.tbtn.held{background:rgba(255,179,71,0.35);}

/* ============ screens ============ */
.screen{position:absolute;inset:0;z-index:20;overflow:auto;background:radial-gradient(120% 90% at 50% 0%,rgba(8,11,20,0.88),rgba(4,5,10,0.97) 70%);display:flex;align-items:center;justify-content:center;padding:24px;}
.screen.plain{background:#04050a;z-index:40;}
.screen-inner{max-width:1060px;width:100%;}

/* menu */
.menu-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:40px;align-items:start;}
.brand-kicker{font-size:11px;letter-spacing:0.34em;color:var(--amber);margin-bottom:10px;}
.brand h1{margin:0;font-size:clamp(42px,7vw,84px);line-height:0.95;letter-spacing:0.06em;color:var(--text);}
.brand h1 span{display:block;color:var(--amber);}
.tagline{color:var(--dim);max-width:52ch;margin:18px 0 24px;font-size:14px;line-height:1.6;}
.controls-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.cg h3{margin:0 0 8px;font-size:11px;letter-spacing:0.2em;color:var(--dim);}
.cg ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;}
.cg li{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--dim);}
.cg li span:not(.k){margin-left:auto;}
.cg li .k{flex-shrink:0;}
kbd,.k{display:inline-block;background:#141a28;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:2px 7px;font-size:11px;color:var(--text);min-width:22px;text-align:center;}
.k{font-size:10px;}
.missions h2{margin:0 0 14px;font-size:12px;letter-spacing:0.24em;color:var(--dim);}
.level-list{display:flex;flex-direction:column;gap:10px;}
.lvl-btn{display:flex;justify-content:space-between;align-items:center;gap:12px;width:100%;text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:13px 15px;cursor:pointer;color:var(--text);transition:border-color .15s, transform .15s;}
.lvl-btn:hover{border-color:rgba(255,179,71,0.55);transform:translateY(-1px);}
.lvl-main{display:flex;flex-direction:column;gap:3px;min-width:0;}
.lvl-diff{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:8px;flex-shrink:0;}
.lvl-name{font-size:14px;letter-spacing:0.14em;display:flex;align-items:center;}
.lvl-sub{font-size:11px;color:var(--dim);}
.lvl-right{text-align:right;display:flex;flex-direction:column;gap:3px;flex-shrink:0;}
.lvl-best{font-size:11px;color:var(--amber);}
.lvl-pads{font-size:10px;color:var(--dim);}
.menu-foot{display:flex;gap:10px;margin-top:16px;}
.ghost-btn{background:transparent;border:1px solid var(--line);border-radius:8px;color:var(--dim);padding:9px 16px;font-size:12px;cursor:pointer;letter-spacing:0.08em;}
.ghost-btn:hover{color:var(--text);border-color:rgba(255,255,255,0.3);}
.primary-btn{background:linear-gradient(180deg,#ffc761,#ffb347);border:none;border-radius:8px;color:#241703;padding:11px 22px;font-size:13px;font-weight:700;cursor:pointer;letter-spacing:0.1em;}
.primary-btn:hover{filter:brightness(1.06);}

/* manual */
.manual{max-width:760px;}
.manual h2{letter-spacing:0.2em;font-size:20px;margin:0 0 18px;}
.manual-cols{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-bottom:26px;}
.manual-cols h3{font-size:12px;letter-spacing:0.18em;color:var(--amber);margin:16px 0 6px;}
.manual-cols h3:first-child{margin-top:0;}
.manual-cols p{color:var(--dim);font-size:13px;line-height:1.65;margin:6px 0;}
.limits{list-style:none;padding:0;margin:6px 0;display:flex;flex-direction:column;gap:6px;}
.limits li{font-size:13px;color:var(--dim);}
.limits b{color:var(--text);}

/* result */
.result{max-width:560px;}
.badge{display:inline-block;font-size:12px;letter-spacing:0.3em;padding:6px 14px;border-radius:6px;border:1px solid;margin-bottom:14px;}
.badge.ok{color:var(--good);border-color:var(--good);background:rgba(87,217,138,0.08);}
.badge.warn{color:var(--warn);border-color:var(--warn);background:rgba(255,199,97,0.08);}
.badge.bad{color:var(--bad);border-color:var(--bad);background:rgba(255,93,93,0.08);}
.result h2{margin:0 0 8px;font-size:30px;letter-spacing:0.06em;}
.result-text{color:var(--dim);font-size:13px;line-height:1.6;margin:0 0 18px;}
.score-table{border:1px solid var(--line);border-radius:10px;overflow:hidden;margin-bottom:20px;background:var(--panel);}
.st-row{display:flex;justify-content:space-between;padding:9px 16px;font-size:13px;color:var(--dim);border-bottom:1px solid rgba(255,255,255,0.05);}
.st-row b{color:var(--text);}
.st-row.big{font-size:15px;color:var(--text);background:rgba(255,179,71,0.07);}
.st-row.big b{color:var(--amber);}
.st-row.hl b{color:var(--good);}
.result-actions{display:flex;gap:10px;flex-wrap:wrap;}

/* pause */
.pause{max-width:420px;text-align:center;}
.pause h2{letter-spacing:0.24em;margin:0 0 20px;}
.pause .result-actions{justify-content:center;}

/* loading */
#loading h2{font-size:16px;letter-spacing:0.2em;font-weight:400;color:var(--dim);margin:0 0 16px;text-align:center;}
.progress{width:min(360px,70vw);height:8px;border:1px solid var(--line);border-radius:5px;overflow:hidden;background:rgba(0,0,0,0.5);}
#loadBar{height:100%;width:0%;background:linear-gradient(90deg,#ffb347,#ffe0a0);transition:width 0.2s;}
.hint{color:var(--dim);opacity:0.6;font-size:11px;text-align:center;margin-top:12px;letter-spacing:0.1em;}
#loading .screen-inner{display:flex;flex-direction:column;align-items:center;}

/* responsive */
@media (max-width:860px){
  .menu-grid{grid-template-columns:1fr;gap:24px;}
  .controls-grid{grid-template-columns:1fr;}
  .manual-cols{grid-template-columns:1fr;}
}
@media (max-width:760px){
  .hud-bottom{gap:6px;top:74px;bottom:auto;left:8px;right:8px;align-items:flex-start;}
  .hud-center{top:50%;}
  .telemetry{padding:8px 10px;min-width:0;flex:1 1 100%;}
  .readouts{gap:8px;flex-wrap:wrap;}
  .r b{font-size:14px;}
  .fuel-bar,.thr-bar{width:88px;}
  .guidance{padding:6px 8px;flex:0 0 auto;}
  #horizon{width:72px;height:72px;}
  .padinfo{min-width:0;max-width:122px;}
  .radar-panel{padding:6px;flex:0 0 auto;}
  #radar{width:72px;height:72px;}
  .radar-label{font-size:8px;}
  .mission-name{font-size:11px;letter-spacing:0.1em;}
  .hud-buttons{gap:5px;}
  .icon-btn{padding:9px 10px;font-size:10px;min-height:42px;}
  .stick{left:16px;bottom:18px;width:108px;height:108px;}
  .touch-right{right:16px;bottom:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}