<!-- SOLID CITY · part 1923 -->
 !p.collected});
    objectiveEl.textContent='THREAD THE CORRIDOR · '+Math.min(24,progression.corridorCleared)+' / 24 · '+bandName(human.altitude);speedValueEl.textContent=String(Math.min(599,390+Math.round(levelElapsed*4))).padStart(3,'0');speedBarEl.style.setProperty('--speed','100%');if(progression.corridorCleared>=24&&levelElapsed>16)completeLevel()
  }
  function nearestCorridorShip(p){var best=null,bd=9;ships.forEach(function(s,i){if(!s.alive)return;var d=Math.abs(p.x-s.corridorX)+Math.abs(p.band-s.altitude);if(d<bd){bd=d;best={s:s,i:i}}});return best}
  function updateLevelSystems(dt){
    if(level===2||level===4){
      [0,1].forEach(function(owner){if(!rings.some(function(r){return r.owner===owner}))spawnSpeedRing(owner)});
      rings.forEach(function(r){r.phase+=dt*2;var s=ships[r.owner];if(s.alive&&distObj(r,s)<r.r+18){s.ringScore++;s.speedBank=Math.min(100,s.speedBank+42);r.life=0;notify(r.owner,'SPEED BANKED '+s.ringScore+'/3',700);burst(r.x,r.y,s.color,18)}});rings=rings.filter(function(r){return r.life!==0});
    }
    if(level===2){
      var p=progression.pursuer,target=ships[0].ringScore<ships[1].ringScore?ships[0]:ships[1];if(p){steer(p,target.x,target.y,dt,285);var pl=Math.hypot(p.vx,p.vy);if(pl>315){p.vx=p.vx/pl*315;p.vy=p.vy/pl*315}p.a=Math.atan2(p.vy,p.vx);p.x=wrapX(p.x+p.vx*dt);p.y=wrapY(p.y+p.vy*dt);ships.forEach(function(s,i){if(distObj(p,s)<58&&performance.now()-p.lastHit>700){p.lastHit=performance.now();damage(s,i,24,'pursuer');s.speedBank=Math.max(0,s.speedBank-30);var dx=delta(s.x,p.x,WORLD.w),dy=delta(s.y,p.y,WORLD.h),d=Math.hypot(dx,dy)||1;s.vx+=dx/d*180;s.vy+=dy/d*180;notify(i,'OUTRUN IT',600)}})}
      var fast=ships.every(function(s){return s.ringScore>=3&&Math.hypot(s.vx,s.vy)>=SPEED_TARGET});progression.speedHold=fast?progression.speedHold+dt:Math.max(0,progression.speedHold-dt*1.4);objectiveEl.textContent='RINGS '+Math.min(3,ships[0].ringScore)+'/3 + '+Math.min(3,ships[1].ringScore)+'/3 · HOLD '+progression.speedHold.toFixed(1)+'/3.0s';if(progression.speedHold>=3)completeLevel()
    }
    if(level===3){
      var stage=progression.levelKills>=12?3:progression.levelKills>=5?2:1;if(stage>progression.expansionStage){progression.expansionStage=stage;notify(0,stage===3?'REACH EXPANSION':'SECTOR '+stage+' OPEN',1500);notify(1,stage===3?'REACH EXPANSION':'SECTOR '+stage+' OPEN',1500);burst(ships[0].x,ships[0].y,'#b9a7ff',28);burst(ships[1].x,ships[1].y,'#b9a7ff',28)}objectiveEl.textContent=stage===3?'REACH EXPANSION · CLEAR THE FRONTIER '+progression.levelKills+'/18':'PUSH OUTWARD · SECTOR '+stage+' / 3';if(stage===3&&progression.levelKills>=18)completeLevel()
    }
    hazards.forEach(function(h){if(progression.expansionStage<h.stage)return;h.phase=(h.phase||0)+dt;ships.forEach(function(s,i){var d=distObj(h,s);if(d<h.r){if(h.type==='ion'){s.vx*=Math.pow(.965,dt*60);s.vy*=Math.pow(.965,dt*60)}else if(Math.sin(elapsed*3+i)>.985)damage(s,i,6,'rift')}})});
    if(level===4&&progression.boss){var locked=progression.expansionStage===3&&flight.mode==='formation';objectiveEl.textContent=(locked?'AUTO-LOCK · ':'LOCK LOST · ')+Math.max(0,Math.ceil(progression.boss.hull))+' / '+progression.boss.maxHull;if(locked){flightStateEl.textContent='FORMATION · LOCK';flightStateEl.className='flight-state formation'}if(progression.boss.hull<=0)completeLevel()}
  }
  function update(dt){
    elapsed+=dt;levelElapsed+=dt;if(level===5){updateCorridor(dt);updateHUD();return}wave=1+Math.floor(levelElapsed/18);spawnT-=dt;meteorT-=dt;
    if(spawnT<=0){spawnT=level===4?.38:level===3?Math.max(.42,1.45-wave*.1):Math.max(.58,2.05-wave*.12);spawnEnemy()}
    if(meteorT<=0){meteorT=level===4?.72:Math.max(1.1,3.1-wave*.17);spawnMeteor(level===4||Math.random()<.58)}
    var in0=humanInput(0);drive(ships[0],in0,dt);aiPilot(dt);assist(dt);
    ships.forEach(function(s,i){
      if(!s.alive){s.respawn-=dt;if(s.respawn<=0){s.alive=true;s.hull=s.maxHull;s.x=1150+i*130;s.y=800;burst(s.x,s.y,s.color,24);notify(i,'BACK IN THE FIGHT',900)}return}
      if(i===0&&s.assistUntil>performance.now()&&!in0.active){s.vx+=s.assistVX*dt;s.vy+=s.assistVY*dt;s.actionTick++}
      var now=performance.now();if(s.shieldCharges>0&&now>=s.shieldUntil)breakShield(s);if(s.build.bio>0&&s.hull<s.maxHull)s.hull=Math.min(s.maxHull,s.hull+dt*(.45+s.build.bio*.35));var max=270+s.build.thruster*30+s.speedBank,l=Math.hypot(s.vx,s.vy);if(l>max){s.vx=s.vx/l*max;s.vy=s.vy/l*max}s.vx*=Math.pow(.987,dt*60);s.vy*=Math.pow(.987,dt*60);s.speedBank=Math.max(0,s.speedBank-dt*(level===2?1.4:3));s.x=wrapX(s.x+s.vx*dt);s.y=wrapY(s.y+s.vy*dt);if(l>12)s.a=Math.atan2(s.vy,s.vx);autoFire(s,i,dt);if(i===0)manualFire(s,i,dt)
    });
    updateFlight(dt);updateLevelSystems(dt);
    enemies.forEach(function(e){var target=e.splitter?ships[e.id%2]:(distObj(e,ships[0])<distObj(e,ships[1])?ships[0]:ships[1]),liveIndex=target===ships[0]?0:1;if(e.targetIndex!==liveIndex){e.targetIndex=liveIndex;e.threatTargetIndex=-1;e.rescuePilot=-1;e.res