:root{--bg:#07111c;--bg2:#0e1b2d;--panel:rgba(14,28,47,.93);--panel2:rgba(19,40,66,.95);--line:rgba(102,217,255,.25);--line2:rgba(102,217,255,.58);--txt:#ecf8ff;--muted:#9eb5c9;--cyan:#64e6ff;--green:#9aff9a;--warn:#ffd166;--red:#ff6b86;--ok:#73f2a8;--shadow:rgba(0,0,0,.38);--r:18px;--font:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--txt);font-family:var(--font);background:radial-gradient(circle at 13% 10%,rgba(100,230,255,.17),transparent 26rem),radial-gradient(circle at 83% 7%,rgba(154,255,154,.12),transparent 24rem),linear-gradient(135deg,#050910 0%,var(--bg) 48%,#0d1322 100%)}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(100,230,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(100,230,255,.035) 1px,transparent 1px);background-size:34px 34px;mask-image:linear-gradient(to bottom,black,transparent 80%)}
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var(--shadow);position:relative;overflow:hidden}.panel+.panel{margin-top:1rem}.sidebar,.rightbar{position:sticky;top:5.5rem;align-self:start}.stage{min-width:0}.profile{text-align:center}.avatar{width:88px;height:88px;border-radius:50%;margin:.55rem auto;display:grid;place-items:center;border:2px solid var(--line2);background:conic-gradient(from 120deg,rgba(100,230,255,.25),rgba(154,255,154,.32),rgba(100,230,255,.1));font-size:2rem;font-weight:950}.progress{height:12px;background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:999px;overflow:hidden}.bar{height:100%;display:block;width:0;background:linear-gradient(90deg,var(--cyan),var(--green));transition:width .25s}.mission-list{display:grid;gap:.55rem}.mission-tab{width:100%;display:grid;grid-template-columns:auto 1fr auto;gap:.6rem;align-items:center;text-align:left;background:rgba(255,255,255,.035);color:var(--txt);border:1px solid var(--line);padding:.75rem}.mission-tab.active{border-color:var(--cyan);box-shadow:inset 0 0 18px rgba(100,230,255,.11)}.mission-tab.locked{opacity:.48}.index-dot{width:1.85rem;height:1.85rem;display:grid;place-items:center;border-radius:10px;background:rgba(100,230,255,.12);color:var(--cyan);font-weight:950}.pill{display:inline-flex;align-items:center;gap:.25rem;border:1px solid var(--line);border-radius:999px;padding:.24rem .5rem;font-size:.72rem;color:var(--muted);background:rgba(255,255,255,.04)}.pill.done{color:var(--ok);border-color:rgba(115,242,168,.45)}.pill.locked{color:var(--warn);border-color:rgba(255,209,102,.45)}.hero{display:grid;grid-template-columns:1fr auto;gap:1rem;align-items:center;background:linear-gradient(135deg,rgba(100,230,255,.08),rgba(154,255,154,.035)),var(--panel)}.hero h2{font-size:clamp(1.55rem,3vw,2.55rem);margin-bottom:.45rem}.hero p{line-height:1.6;max-width:75ch}.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(5.6rem,1fr));gap:.7rem}.hero-stat{text-align:center;border:1px solid var(--line);border-radius:15px;background:rgba(255,255,255,.04);padding:.7rem}.hero-stat strong{display:block;color:var(--cyan);font-size:1.55rem}.mission-title{display:flex;justify-content:space-between;gap:1rem;align-items:start}.meta{display:flex;gap:.45rem;flex-wrap:wrap;justify-content:flex-end}.briefing{line-height:1.6;border:1px solid var(--line);border-radius:16px;background:rgba(100,230,255,.07);padding:1rem}.objectives{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:.7rem;margin:1rem 0}.objective{border:1px solid var(--line);border-radius:15px;background:rgba(255,255,255,.035);padding:.75rem}.toolbelt{display:flex;flex-wrap:wrap;gap:.45rem;margin:.8rem 0}.tool{border:1px solid var(--line);border-radius:999px;padding:.34rem 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var(--line);border-radius:14px;background:rgba(255,255,255,.04);padding:.75rem}.feedback.good{border-color:rgba(115,242,168,.55);color:var(--ok)}.feedback.bad{border-color:rgba(255,107,134,.55);color:var(--red)}.grid{display:grid;gap:.7rem}.grid.two{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.grid.three{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}.card,.choice,.node-chip,.sequence-item{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.045);color:var(--txt);padding:.78rem;text-align:left}.choice.selected,.card.selected,.node-chip.selected{border-color:var(--cyan);background:rgba(100,230,255,.13);box-shadow:inset 0 0 18px rgba(100,230,255,.08)}.choice p,.card p{color:var(--muted);margin:.35rem 0 0;line-height:1.45}.sequence{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.node-bank{display:flex;flex-wrap:wrap;gap:.5rem}.sequence-track{display:grid;gap:.5rem}.sequence-item{display:flex;align-items:center;justify-content:space-between;min-height:3rem}.sequence-item button{padding:.22rem .45rem}.field{display:block}.field span{display:block;color:var(--muted);font-size:.8rem;margin-bottom:.35rem}select,input{width:100%;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.06);color:var(--txt);padding:.65rem}.map{height:420px;border:1px solid var(--line);border-radius:16px;background:radial-gradient(circle at 32% 22%,rgba(100,230,255,.12),transparent 6rem),linear-gradient(135deg,rgba(255,255,255,.04),rgba(255,255,255,.02));position:relative;overflow:hidden}.map-node{position:absolute;width:82px;min-height:54px;display:grid;place-items:center;text-align:center;border:1px solid var(--line2);border-radius:13px;background:rgba(9,20,33,.95);color:var(--txt);font-size:.76rem;padding:.28rem}.map-node.hot{border-color:rgba(255,107,134,.65);box-shadow:0 0 20px rgba(255,107,134,.12)}.map-node.safe{border-color:rgba(115,242,168,.55)}.map-edge{position:absolute;height:2px;background:linear-gradient(90deg,rgba(100,230,255,.45),rgba(154,255,154,.2));transform-origin:left center}.mission-map-panel{margin-bottom:1rem;border:1px solid var(--line);border-radius:18px;background:rgba(100,230,255,.04);padding:.8rem}.mission-map-panel .map{height:520px}.map.fullscreen{height:min(72vh,760px)}.map-toolbar{display:flex;justify-content:space-between;align-items:center;gap:.75rem;margin-bottom:.65rem}.modal-card.wide-modal{width:min(1400px,96vw)}.map-node:hover{filter:brightness(1.15);transform:translateY(-1px)}@media(min-width:1700px){.map{height:500px}.mission-map-panel .map{height:580px}}.terminal{height:240px;overflow:auto;white-space:pre-wrap;border:1px solid var(--line);border-radius:14px;padding:.75rem;background:#02070c;color:#aaffbd;font:.78rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.terminal-form{display:flex;gap:.5rem;align-items:center;margin-top:.6rem}.terminal-form span{color:var(--green);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.timeline-picks{display:flex;gap:.5rem;flex-wrap:wrap;min-height:3rem;margin-top:.7rem}.timeline-pill{border:1px solid var(--line2);border-radius:999px;padding:.4rem .55rem;color:var(--cyan);background:rgba(100,230,255,.08)}.budget{display:flex;align-items:center;justify-content:space-between;gap:.6rem;border:1px solid var(--line);border-radius:14px;padding:.75rem;background:rgba(255,255,255,.035);margin-top:.7rem}.modal{position:fixed;inset:0;z-index:120;background:rgba(0,0,0,.72);display:grid;place-items:center;padding:1rem}.modal.hidden{display:none}.modal-card{width:min(900px,100%);max-height:86vh;overflow:auto;background:var(--panel2);border:1px solid var(--line2);border-radius:22px;padding:1rem;box-shadow:0 22px 80px rgba(0,0,0,.55)}.modal-head{display:flex;justify-content:space-between;gap:.8rem;align-items:center}.badge-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.7rem}.badge{display:flex;gap:.7rem;align-items:center;border:1px solid var(--line);border-radius:15px;padding:.75rem;background:rgba(255,255,255,.04)}.badge.locked{opacity:.45;filter:grayscale(.7)}.badge-icon{width:2.35rem;height:2.35rem;display:grid;place-items:center;border-radius:12px;background:rgba(100,230,255,.15);color:var(--cyan);font-weight:950}.toast{position:fixed;right:1rem;bottom:1rem;z-index:140;transform:translateY(140%);opacity:0;transition:.2s;background:rgba(5,13,21,.96);border:1px solid var(--line2);border-radius:16px;padding:.8rem 1rem;box-shadow:0 18px 48px rgba(0,0,0,.45)}.toast.show{transform:translateY(0);opacity:1}.not-found,.noscript{max-width:720px;margin:10vh auto}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
@media(max-width:1380px){.layout{grid-template-columns:280px minmax(0,1fr)}.rightbar{grid-column:1/-1;position:static;display:grid;grid-template-columns:1.25fr .9fr;gap:1rem}.rightbar .panel+.panel{margin-top:0}.map{height:430px}}
@media(max-width:760px){.topbar,.hero,.layout,.sequence{grid-template-columns:1fr;display:grid}.stats{justify-content:flex-start}.sidebar,.rightbar{position:static}.rightbar{grid-template-columns:1fr}.hero-stats{grid-template-columns:repeat(3,1fr)}.mission-title{display:block}.meta{justify-content:flex-start}.boot-guard{display:block}.boot-guard span{display:block;margin-top:.35rem}}


/* v3.2 clean network diagram overrides */
.map{background:#071521;border-color:rgba(102,217,255,.35);overflow:hidden;isolation:isolate}
.map:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(100,230,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(100,230,255,.035) 1px,transparent 1px);background-size:32px 32px;opacity:.72;pointer-events:none;z-index:0}
.map:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 22% 50%,rgba(100,230,255,.16),transparent 12rem),radial-gradient(circle at 84% 73%,rgba(154,255,154,.09),transparent 13rem);pointer-events:none;z-index:0}
.map-svg{position:absolute;inset:0;width:100%;height:100%;z-index:1;pointer-events:none;overflow:visible}
.map-layer{position:absolute;inset:0;z-index:2}
.map-edge{display:none}
.map-edge-path{fill:none;stroke:rgba(100,230,255,.72);stroke-width:2.6;vector-effect:non-scaling-stroke;filter:drop-shadow(0 0 5px rgba(100,230,255,.18))}
.map-edge-path.telemetry{stroke:rgba(115,242,168,.34);stroke-width:1.8;stroke-dasharray:8 8;filter:none}
.map-edge-path.risky{stroke:rgba(255,107,134,.42);stroke-dasharray:10 7}
.arrow-head{fill:rgba(100,230,255,.78)}
.map-node{z-index:3;transform:translate(-50%,-50%);width:104px;min-height:52px;background:#071726;border-width:1px;box-shadow:0 10px 22px rgba(0,0,0,.28),0 0 0 1px rgba(255,255,255,.025) inset}
.map-node span{display:block;line-height:1.15}
.map-node.hot{background:#120d18;border-color:rgba(255,107,134,.85);box-shadow:0 0 22px rgba(255,107,134,.12),0 10px 22px rgba(0,0,0,.28)}
.map-node.safe{background:#061914;border-color:rgba(115,242,168,.72)}
.map-node.selected{outline:2px solid var(--cyan);outline-offset:3px;background:#0b273d}
.map-node:hover{filter:brightness(1.15);transform:translate(-50%,-54%)}
.modal-card.wide-modal{width:min(1520px,96vw);background:#0e2237}
.modal-card.wide-modal .map.fullscreen{height:min(76vh,820px);background:#071521}
.mission-map-panel .map{height:560px;background:#071521}
@media(min-width:1700px){.mission-map-panel .map{height:640px}.modal-card.wide-modal .map.fullscreen{height:min(78vh,860px)}}
@media(max-width:900px){.map-node{width:88px;font-size:.68rem}.mission-map-panel .map{height:480px}}

/* v3.3 map redesign: swimlanes, zone labels, and clearer route semantics */
.map{background:#06101a;border-color:rgba(100,230,255,.44)}
.map-zone-layer{position:absolute;inset:0;z-index:1;pointer-events:none}
.map-zone{position:absolute;top:.7rem;bottom:.7rem;border:1px solid rgba(100,230,255,.12);border-radius:14px;background:linear-gradient(180deg,rgba(100,230,255,.035),rgba(255,255,255,.012));display:flex;align-items:flex-start;justify-content:center;padding-top:.45rem;color:rgba(236,248,255,.38);font-size:.68rem;font-weight:900;letter-spacing:.12em;text-transform:uppercase}
.map-svg{z-index:2}
.map-layer{z-index:3}
.map-edge-path{stroke:rgba(100,230,255,.46);stroke-width:2.1;filter:none}
.map-edge-path.primary{stroke:rgba(115,242,168,.92);stroke-width:4.2;filter:drop-shadow(0 0 7px rgba(115,242,168,.25))}
.map-edge-path.legacy{stroke:rgba(100,230,255,.58);stroke-width:2.6;stroke-dasharray:0}
.map-edge-path.risky{stroke:rgba(255,107,134,.82);stroke-width:3.2;stroke-dasharray:12 9;filter:drop-shadow(0 0 6px rgba(255,107,134,.22))}
.map-edge-path.telemetry{stroke:rgba(154,255,154,.31);stroke-width:1.9;stroke-dasharray:5 9;marker-end:none}
.map-label{font:800 14px Inter,ui-sans-serif,system-ui,sans-serif;fill:rgba(236,248,255,.55);letter-spacing:.08em;text-transform:uppercase}
.map-label.good{fill:rgba(115,242,168,.82)}
.map-label.bad{fill:rgba(255,107,134,.78)}
.map-label.tele{fill:rgba(154,255,154,.48)}
.map-node{width:122px;min-height:58px;font-size:.83rem;border-radius:15px;background:#081827;border:1.5px solid rgba(100,230,255,.72)}
.map-node.safe{background:#062017;border-color:rgba(115,242,168,.86)}
.map-node.hot{background:#160b15;border-color:rgba(255,107,134,.92)}
.mission-map-panel .map{height:560px}
@media(min-width:1700px){.mission-map-panel .map{height:640px}.map{height:560px}}


.hidden{display:none!important}
.layout.lab-map-mode{grid-template-columns:minmax(260px,330px) minmax(820px,1fr) minmax(340px,430px)}
.rightbar.map-hidden{display:block}.rightbar.map-hidden .panel+.panel{margin-top:0}.side-map-panel.hidden+section{margin-top:0}
.lesson{margin:1rem 0;border:1px solid rgba(154,255,154,.28);border-radius:20px;background:linear-gradient(135deg,rgba(154,255,154,.08),rgba(100,230,255,.045));padding:1rem;box-shadow:inset 0 0 28px rgba(154,255,154,.035)}
.lesson-head{display:flex;align-items:start;justify-content:space-between;gap:1rem;margin-bottom:.8rem}.lesson-head h2{margin-bottom:0}.lesson-grid{display:grid;grid-template-columns:repeat(2,minmax(230px,1fr));gap:.75rem}.lesson-card{border:1px solid var(--line);border-radius:16px;background:rgba(5,12,20,.42);padding:.9rem;line-height:1.55}.lesson-card h3{margin-bottom:.45rem}.lesson-card p{color:var(--muted);margin-bottom:0}.lesson-card ul{margin:.15rem 0 0 1.1rem;padding:0;color:var(--muted)}.lesson-card li{margin:.28rem 0}.lesson-card.concept{border-color:rgba(100,230,255,.45)}.lesson-card.warning{border-color:rgba(255,209,102,.42);background:rgba(255,209,102,.045)}.lab-gate{margin-top:.8rem;border:1px dashed rgba(100,230,255,.45);border-radius:15px;background:rgba(100,230,255,.055);padding:.8rem;color:var(--muted);line-height:1.55}.lab-gate strong{color:var(--cyan)}
@media(max-width:1380px){.layout.lab-map-mode{grid-template-columns:280px minmax(0,1fr)}.rightbar.map-hidden{grid-column:1/-1}.lesson-grid{grid-template-columns:1fr}}
@media(max-width:760px){.lesson-head{display:block}.lesson-grid{grid-template-columns:1fr}}

/* v3.5 teaching and tool-guide refinements */
.toolbelt-intro{
  margin:.9rem 0 .5rem;
  padding:.7rem .8rem;
  border:1px solid rgba(125, 249, 201, .22);
  border-radius:14px;
  background:linear-gradient(135deg,rgba(125,249,201,.08),rgba(77,208,255,.04));
  color:#cfe8ff;
  font-size:.92rem;
}
.toolbelt .tool{
  cursor:pointer;
  border:none;
  font:inherit;
}
.toolbelt .tool:hover,
.toolbelt .tool:focus-visible{
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(125,249,201,.35), 0 0 22px rgba(77,208,255,.14);
}
.coach-strip{
  display:grid;
  grid-template-columns:minmax(180px,.8fr) 2fr;
  gap:1rem;
  align-items:start;
  margin-top:1rem;
  padding:1rem;
  border:1px solid rgba(125,249,201,.25);
  border-radius:16px;
  background:linear-gradient(135deg,rgba(125,249,201,.10),rgba(255,214,102,.06));
}
.coach-strip h3{margin:.1rem 0 0;font-size:1.05rem;color:#eaf6ff}
.coach-strip ul{margin:.1rem 0 0;padding-left:1.2rem;color:#cfe0f6;line-height:1.55}
.coach-strip li+li{margin-top:.35rem}
.tool-guide p{margin:.65rem 0;line-height:1.55;color:#d8e9ff}
.tool-guide code{background:#06111d;border:1px solid rgba(77,208,255,.28);padding:.14rem .42rem;border-radius:8px;color:#7df9c9}
@media (max-width: 900px){.coach-strip{grid-template-columns:1fr}}

/* v3.6 actionable attempt feedback */
.feedback-breakdown{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  gap:.7rem;
  margin-top:.85rem;
  color:var(--txt);
}
.feedback-card{
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(5,12,20,.46);
  padding:.75rem .85rem;
  line-height:1.45;
}
.feedback-card h4{
  margin:.05rem 0 .45rem;
  font-size:.9rem;
  color:var(--cyan);
}
.feedback-card ul{
  margin:0;
  padding-left:1.15rem;
}
.feedback-card li+li{margin-top:.35rem}
.feedback-card.good{border-color:rgba(115,242,168,.42)}
.feedback-card.good h4{color:var(--ok)}
.feedback-card.bad{border-color:rgba(255,107,134,.46)}
.feedback-card.bad h4{color:var(--red)}
.feedback-card.tip{border-color:rgba(255,209,102,.44)}
.feedback-card.tip h4{color:var(--warn)}
.feedback-card.answer{border-color:rgba(100,230,255,.45)}
.feedback.good,.feedback.bad{color:var(--txt)}
.feedback.good>strong{color:var(--ok)}
.feedback.bad>strong{color:var(--red)}

/* v3.7 polish: remove duplicate side mini-map and replace native selects with game-style choices */
.right-help .support-list{display:grid;gap:.5rem;margin-top:.8rem}
.right-help .support-list span{border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.045);padding:.55rem .65rem;color:var(--muted);font-size:.86rem}
.option-card-wrap{display:block}
.card-title-row{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-bottom:.65rem}
.option-group{display:grid;gap:.45rem;margin-top:.65rem}
.option-card{width:100%;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.045);color:var(--txt);padding:.62rem .7rem;text-align:left;line-height:1.25;transition:transform .12s ease,border-color .12s ease,background .12s ease,box-shadow .12s ease}
.option-card:hover{transform:translateY(-1px);border-color:rgba(100,230,255,.65);background:rgba(100,230,255,.08)}
.option-card.selected{border-color:var(--cyan);background:rgba(100,230,255,.16);box-shadow:inset 0 0 18px rgba(100,230,255,.08),0 0 0 1px rgba(100,230,255,.16)}
.option-card span{display:block;font-weight:800}
.zone-card,.decision-card,.option-card-wrap{min-height:100%}
select{background:#10233a;color:var(--txt)}
select option{background:#10233a;color:var(--txt)}

/* v3.8 persistent results panel */
.feedback-actions{
  display:flex;
  flex-wrap:wrap;
  gap:.65rem;
  margin-top:.9rem;
  padding-top:.75rem;
  border-top:1px solid var(--line);
}
.feedback-actions button{min-width:12rem}
.feedback.good,.feedback.bad{
  scroll-margin-top:6rem;
}
/* v4 backend status */
#backendStatus.online{color:#8fffb8}
#backendStatus.offline{color:#ffd37a}