.nexus-shell{position:relative;width:100%;min-height:calc(100dvh - var(--nav-h));display:flex;flex-direction:column;align-items:center;justify-content:flex-start;background:transparent;overflow:hidden;font-family:Plus Jakarta Sans,sans-serif;color:#fff}.nexus-shell:before{display:none}.nexus-header{padding:24px 0 12px;text-align:center;z-index:10;flex-shrink:0;position:relative}.nexus-header:after{content:"";display:block;width:120px;height:2px;margin:10px auto 0;background:linear-gradient(90deg,transparent,rgba(var(--a1-rgb),.6),transparent);border-radius:2px}.nexus-title{font-size:2rem;font-weight:900;text-transform:uppercase;letter-spacing:5px;margin:0;display:flex;align-items:center;justify-content:center;gap:12px;filter:drop-shadow(0 0 12px rgba(var(--a1-rgb),.3))}.v5-badge{font-size:.75rem;background:linear-gradient(135deg,#ec4899,#8b5cf6);color:#fff;-webkit-text-fill-color:#fff;padding:4px 10px;border-radius:8px;font-weight:800;letter-spacing:1px;box-shadow:0 0 14px #8b5cf699,0 2px 8px #0006;animation:nx-badge-pulse 3s ease-in-out infinite}@keyframes nx-badge-pulse{0%,to{box-shadow:0 0 14px #8b5cf699,0 2px 8px #0006}50%{box-shadow:0 0 24px #ec4899cc,0 2px 8px #0006}}.nexus-subtitle{font-size:.82rem;color:#ffffff73;margin-top:6px;font-weight:500;letter-spacing:1px;text-transform:uppercase}.nexus-mode-selector{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:20px;margin-top:24px;z-index:15;width:95%;max-width:1000px;position:relative}.nexus-mode-card{background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:24px;padding:34px 24px;text-align:center;cursor:pointer;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);transition:all .4s cubic-bezier(.175,.885,.32,1.275);display:flex;flex-direction:column;align-items:center;box-shadow:0 8px 32px #0006,inset 0 1px #ffffff0f;position:relative;overflow:hidden}.nexus-mode-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:var(--card-color, #00d4ff);opacity:.6;transition:opacity .3s,height .3s;box-shadow:0 0 12px var(--card-color, #00d4ff)}.nexus-mode-card:after{content:"";position:absolute;bottom:-40px;right:-40px;width:120px;height:120px;border-radius:50%;background:radial-gradient(circle,var(--card-color, #00d4ff) 0%,transparent 70%);opacity:0;transition:opacity .4s,transform .4s;transform:scale(.5)}.nexus-mode-card:hover{transform:translateY(-8px) scale(1.02);border-color:#ffffff26;box-shadow:0 20px 50px #00000080,0 0 30px #0003,inset 0 1px #ffffff1a;background:#ffffff0f}.nexus-mode-card:hover:before{opacity:1;height:4px}.nexus-mode-card:hover:after{opacity:.08;transform:scale(1)}.nm-icon{font-size:3.2rem;margin-bottom:18px;filter:drop-shadow(0 0 14px rgba(255,255,255,.25));transition:transform .4s cubic-bezier(.34,1.56,.64,1)}.nexus-mode-card:hover .nm-icon{transform:scale(1.15) translateY(-4px)}.nm-title{font-size:1.2rem;font-weight:800;color:#fff;margin-bottom:12px;letter-spacing:1px}.nm-desc{font-size:.85rem;color:#ffffff80;line-height:1.6}.nexus-display-container{width:90%;max-width:620px;min-height:unset;margin:10px auto;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:transparent;border:none;padding:10px 24px;border-radius:0;backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:none;z-index:12;flex-shrink:0;transition:all .4s ease;position:relative}.nexus-display-container:before{display:none}.nexus-task-progress{font-size:.68rem;color:rgba(var(--a1-rgb),.7);font-weight:800;text-transform:uppercase;letter-spacing:2px;margin-bottom:10px}.nexus-question{font-size:1.15rem;font-weight:700;color:#fff;line-height:1.6}.nexus-feedback-area{flex-direction:column;align-items:center;gap:8px}.nexus-phrase-result{font-size:1.3rem;font-weight:800;color:#10b981;text-shadow:0 0 12px rgba(var(--a4-rgb),.5)}.nexus-example-text{font-size:.9rem;color:#ffffff8c;font-style:italic;line-height:1.5}.nexus-game-area{position:relative;flex:1;width:100%;max-width:800px;min-height:320px;display:flex;align-items:center;justify-content:center;z-index:5;margin-bottom:0;overflow:visible}.nexus-core-node{width:118px;height:118px;border-radius:50%;background:linear-gradient(135deg,#7c3aed,#4c1d95);display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:800;color:#fff;box-shadow:0 0 0 8px rgba(var(--a2-rgb),.15),0 0 40px rgba(var(--a2-rgb),.5),inset 0 1px #ffffff4d;position:absolute;cursor:pointer;z-index:10;overflow:visible;transition:box-shadow .4s ease,transform .3s ease;animation:nx-core-pulse 3s ease-in-out infinite}.nexus-core-node:hover{transform:scale(1.1);box-shadow:0 0 0 12px rgba(var(--a2-rgb),.2),0 0 60px rgba(var(--a2-rgb),.7),inset 0 1px #ffffff4d}.nexus-core-node.active{animation:nx-core-burst .3s ease-out}.nexus-core-node.just-solved{animation:nx-core-pulse 3s ease-in-out infinite,nx-core-burst-star .9s ease-out;box-shadow:0 0 0 20px #a78bfa33,0 0 70px #a78bfacc,inset 0 1px #ffffff4d}.nexus-core-node.constellation-complete-glow{box-shadow:0 0 0 16px #8b5cf640,0 0 80px #8b5cf6cc;background:linear-gradient(135deg,#8b5cf6,#7c3aed)}@keyframes nx-core-pulse{0%,to{box-shadow:0 0 0 8px rgba(var(--a2-rgb),.15),0 0 40px rgba(var(--a2-rgb),.5),inset 0 1px #ffffff4d}50%{box-shadow:0 0 0 14px rgba(var(--a2-rgb),.1),0 0 60px rgba(var(--a2-rgb),.7),inset 0 1px #ffffff4d}}@keyframes nx-core-burst{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(1)}}@keyframes nx-core-burst-star{0%{transform:scale(1);box-shadow:0 0 0 8px #a78bfa26,0 0 40px #a78bfa80,inset 0 1px #ffffff4d}30%{transform:scale(1.22);box-shadow:0 0 0 26px #a78bfa40,0 0 90px #f5d370cc,inset 0 1px #fff6}60%{transform:scale(1.08);box-shadow:0 0 0 18px #a78bfa2e,0 0 60px #a78bfae6,inset 0 1px #ffffff4d}to{transform:scale(1);box-shadow:0 0 0 8px rgba(var(--a2-rgb),.15),0 0 40px rgba(var(--a2-rgb),.5),inset 0 1px #ffffff4d}}.nexus-particle-node{width:90px;height:90px;border-radius:50%;background:#ffffff0a;border:1.5px solid rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;font-size:.9rem;font-weight:700;color:#ffffffe6;position:absolute;cursor:pointer;transition:all .4s cubic-bezier(.34,1.56,.64,1);box-shadow:0 4px 20px #0000004d,inset 0 1px #ffffff14;z-index:8;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);text-align:center;word-break:break-word;overflow-wrap:break-word;hyphens:auto;line-height:1.2;padding:8px;opacity:0;transform:scale(.5)}.nexus-particle-node.appeared{opacity:1;transform:scale(1)}.nexus-particle-node:hover:not(.solved):not(.wrong){border-color:#00d4ff;color:#00d4ff;box-shadow:0 0 0 4px rgba(var(--a1-rgb),.15),0 0 24px rgba(var(--a1-rgb),.4),inset 0 1px #ffffff1a;transform:scale(1.18);background:rgba(var(--a1-rgb),.06)}.nexus-particle-node.solved{background:rgba(var(--a4-rgb),.15);border-color:#10b981;color:#10b981;box-shadow:0 0 0 5px rgba(var(--a4-rgb),.15),0 0 30px rgba(var(--a4-rgb),.5);transform:scale(1.12);pointer-events:none}.nexus-particle-node.wrong{background:#ef444426;border-color:#ef4444;color:#fca5a5;animation:nexus-shake .5s}.nexus-connection-line{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:6}.nexus-line.correct-line{stroke:#10b981;stroke-width:2.5;stroke-dasharray:10 5;filter:drop-shadow(0 0 7px #10b981);animation:nx-line-wave 1.1s linear infinite,nx-line-glow 2s ease-in-out infinite}.nexus-line.snap-line{stroke:#a78bfa;stroke-width:3;stroke-dasharray:var(--line-len) var(--line-len);stroke-dashoffset:var(--line-len);filter:drop-shadow(0 0 8px rgba(167,139,250,.9));animation:nx-line-snap .55s cubic-bezier(.34,1.56,.64,1) forwards,nx-snap-glow .55s ease-out forwards}.pulse-line{animation:nx-line-pulse 1s ease-in-out infinite alternate!important}@keyframes nx-line-wave{to{stroke-dashoffset:-45}}@keyframes nx-line-glow{0%,to{filter:drop-shadow(0 0 5px #10b981)}50%{filter:drop-shadow(0 0 14px #34d399)}}@keyframes nx-line-snap{to{stroke-dashoffset:0}}@keyframes nx-snap-glow{0%{stroke:#c4b5fd}to{stroke:#a78bfa}}@keyframes nx-line-pulse{0%{stroke:#10b981;filter:drop-shadow(0 0 4px #10b981)}to{stroke:#34d399;filter:drop-shadow(0 0 12px #34d399)}}.cipher-sentence-box{width:90%;max-width:700px;margin:16px auto 8px;text-align:center;font-size:1.4rem;font-weight:600;line-height:1.6;color:#ffffffe6;background:rgba(var(--a4-rgb),.04);border:1px solid rgba(var(--a4-rgb),.18);padding:26px 32px;border-radius:22px;z-index:12;box-shadow:0 12px 40px #00000080,inset 0 1px #ffffff0d;transition:all .4s ease;position:relative}.cipher-hint{font-size:.82rem;color:#fff6;margin-top:14px;padding-top:12px;border-top:1px solid rgba(255,255,255,.08);letter-spacing:.3px}.cipher-blank{display:inline-block;min-width:100px;border-bottom:2px solid #00d4ff;color:#00d4ff;padding:0 10px;text-align:center;font-weight:800;text-shadow:0 0 12px rgba(var(--a1-rgb),.5)}.cipher-lock-mechanism{display:flex;align-items:center;justify-content:center;gap:24px;margin:16px auto;padding:32px 40px;background:#00000080;border-radius:32px;border:1px solid rgba(255,255,255,.07);box-shadow:inset 0 0 60px #0009,0 20px 60px #0009,inset 0 1px #ffffff0d;z-index:12;position:relative}.cipher-lock-mechanism:before{content:"";position:absolute;inset:0;border-radius:32px;background:linear-gradient(135deg,rgba(var(--a4-rgb),.04) 0%,transparent 50%);pointer-events:none}.cipher-dial{display:flex;flex-direction:column;align-items:center;gap:12px;width:150px}.cipher-nav-btn{width:44px;height:44px;border-radius:12px;background:#ffffff0d;border:1px solid rgba(255,255,255,.12);color:#ffffffb3;font-size:1rem;cursor:pointer;transition:all .2s;backdrop-filter:blur(4px)}.cipher-nav-btn:hover{background:rgba(var(--a1-rgb),.12);color:#00d4ff;border-color:rgba(var(--a1-rgb),.4);box-shadow:0 0 12px rgba(var(--a1-rgb),.3);transform:scale(1.1)}.cipher-nav-btn:active{transform:scale(.95)}.cipher-window{width:100%;height:76px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;font-weight:800;background:#0006;border:2px solid rgba(255,255,255,.12);border-radius:16px;color:#e2e8f0;text-transform:uppercase;transition:all .2s;box-shadow:inset 0 2px 10px #0009,inset 0 -1px #ffffff0a;user-select:none;font-family:Plus Jakarta Sans,monospace;letter-spacing:2px}.cipher-window.glow{border-color:rgba(var(--a1-rgb),.5);box-shadow:0 0 20px rgba(var(--a1-rgb),.35),inset 0 2px 10px #0009;color:#00d4ff}.cipher-window.correct{border-color:#10b981;color:#10b981;box-shadow:0 0 30px rgba(var(--a4-rgb),.5),inset 0 2px 10px #0006}.cipher-window.wrong{border-color:#ef4444;color:#fca5a5;animation:nexus-shake .4s}.cipher-engage-btn{display:block;margin:0 auto;padding:16px 48px;border-radius:14px;font-size:1rem;font-weight:900;letter-spacing:3px;cursor:pointer;z-index:12;position:relative;background:linear-gradient(135deg,#10b981,#059669);border:none;color:#fff;box-shadow:0 6px 24px rgba(var(--a4-rgb),.4),inset 0 1px #fff3;transition:all .3s cubic-bezier(.175,.885,.32,1.275);text-transform:uppercase}.cipher-engage-btn:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 12px 36px rgba(var(--a4-rgb),.55),inset 0 1px #fff3}.cipher-engage-btn:active{transform:translateY(0) scale(.98)}.synth-game-container{display:flex;flex-direction:column;align-items:center;width:100%;max-width:900px;z-index:10;margin-top:8px}.synth-sentence{font-size:1.6rem;font-weight:600;color:#ffffffe6;text-align:center;margin-bottom:28px;line-height:1.6;padding:20px 24px;background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:18px;width:90%;max-width:680px;box-shadow:0 4px 20px #0000004d,inset 0 1px #ffffff0d}.synth-blank{display:inline-block;min-width:140px;height:4px;border-radius:2px;background:linear-gradient(90deg,#ec4899,#8b5cf6);box-shadow:0 0 12px #ec489999;position:relative;top:-4px;margin:0 4px}.synth-reactor{display:flex;align-items:center;justify-content:center;gap:28px;margin-bottom:32px;padding:32px 52px;background:radial-gradient(circle at 30% 50%,rgba(139,92,246,.1) 0%,transparent 60%),radial-gradient(circle at 70% 50%,rgba(14,165,233,.1) 0%,transparent 60%),#0000004d;border:1px solid rgba(236,72,153,.2);border-radius:40px;box-shadow:0 16px 48px #0006,inset 0 1px #ffffff0d;position:relative}.synth-reactor:before{content:"";position:absolute;inset:0;border-radius:40px;background:linear-gradient(135deg,#8b5cf60f,#0ea5e90f);pointer-events:none}.synth-slot{width:150px;height:64px;border-radius:100px;border:2px dashed rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:800;color:#ffffff4d;transition:all .35s cubic-bezier(.175,.885,.32,1.275);cursor:pointer;letter-spacing:1px}.synth-slot.filled{border-style:solid;color:#fff;transform:scale(1.06)}.synth-slot.filled.verb{border-color:#8b5cf6;background:#8b5cf62e;box-shadow:0 0 24px #8b5cf673,inset 0 1px #ffffff1a}.synth-slot.filled.particle{border-color:#0ea5e9;background:#0ea5e92e;box-shadow:0 0 24px #0ea5e973,inset 0 1px #ffffff1a}.synth-slot.error{border-color:#ef4444!important;background:#ef444426!important;box-shadow:0 0 20px #ef444466!important;animation:nexus-shake .4s}.synth-slot.success{border-color:#10b981!important;background:rgba(var(--a4-rgb),.18)!important;box-shadow:0 0 32px rgba(var(--a4-rgb),.6)!important}.synth-plus{font-size:2rem;font-weight:900;color:#ffffff40;text-shadow:0 0 20px rgba(236,72,153,.3)}.synth-pool{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;max-width:720px}.synth-orb{padding:11px 28px;border-radius:100px;font-size:1.1rem;font-weight:700;cursor:pointer;transition:all .25s cubic-bezier(.34,1.56,.64,1);box-shadow:0 4px 16px #00000040;user-select:none;position:relative;overflow:hidden}.synth-orb:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:#fff3;border-radius:100px}.synth-orb.verb{background:#8b5cf61f;border:1px solid rgba(139,92,246,.5);color:#ddd6fe}.synth-orb.particle{background:#0ea5e91f;border:1px solid rgba(14,165,233,.5);color:#bae6fd}.synth-orb:hover:not(.used){transform:translateY(-6px) scale(1.07);filter:brightness(1.35);box-shadow:0 10px 28px #00000059}.synth-orb.used{opacity:0;transform:scale(.4) translateY(10px);pointer-events:none;transition:all .3s ease}.nexus-hud{position:absolute;top:16px;right:16px;display:flex;flex-direction:column;gap:8px;z-index:20}.nexus-stat{background:#0009;border:1px solid rgba(255,255,255,.1);padding:9px 22px;border-radius:50px;font-size:.92rem;font-weight:700;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);color:#ffffffd9;box-shadow:0 4px 16px #0006,inset 0 1px #ffffff12;letter-spacing:.5px}.nexus-bg-stars{display:none}.nexus-star{display:none}@keyframes nexus-twinkle{0%{opacity:.08;transform:scale(.8)}to{opacity:.7;transform:scale(1.2)}}@keyframes nexus-fade-up{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes nexus-shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-7px)}40%,80%{transform:translate(7px)}}.animate-in .nexus-header{animation:nexus-fade-up .5s ease both}.animate-in .nexus-mode-selector{animation:nexus-fade-up .6s .1s ease both}.animate-in .synth-game-container,.animate-in .cipher-sentence-box{animation:nexus-fade-up .5s ease both}@media(max-width:768px){
  /* Nexus shell: intro ekranında scroll engelle, oyun ekranlarında serbest */
  .nexus-shell{min-height:unset;padding:0 12px;padding-bottom:calc(var(--mobile-nav-h) + env(safe-area-inset-bottom,0px) + 8px);}
  .nexus-shell:has(.nexus-mode-selector),
  .nexus-shell.nexus-intro-lock{
    height:calc(100dvh - var(--nav-h) - var(--mobile-nav-h) - env(safe-area-inset-bottom,0px) - 28px);
    overflow:hidden;
    justify-content:flex-start;
  }

  /* Intro header */
  .nexus-header{padding:10px 0 6px}
  .nexus-header:after{margin:6px auto 0}
  .nexus-title{font-size:1.2rem;letter-spacing:2px;gap:8px}
  .v5-badge{font-size:.65rem;padding:3px 8px}
  .nexus-subtitle{font-size:.72rem;margin-top:3px}
  .nexus-mode-selector{grid-template-columns:1fr;gap:14px;margin-top:16px;width:100%}
  .nexus-mode-card{padding:16px 18px;border-radius:16px;flex-direction:row;text-align:left;gap:14px}
  .nexus-mode-card:after{display:none}
  .nm-icon{font-size:2rem;margin-bottom:0;flex-shrink:0}
  .nm-title{font-size:0.92rem;margin-bottom:3px;letter-spacing:0.5px}
  .nm-desc{display:none}

  /* Cipher ekranı: kompakt */
  .nexus-shell{overflow-x:hidden}
  .cipher-sentence-box{font-size:1rem;padding:12px 14px;margin:8px 0;border-radius:14px;line-height:1.5;width:100%;box-sizing:border-box}
  .cipher-hint{font-size:0.74rem;margin-top:8px;padding-top:8px}
  .cipher-lock-mechanism{
    flex-direction:row !important;
    padding:12px 10px;
    gap:8px;
    border-radius:18px;
    margin:8px 0;
    width:100%;
    box-sizing:border-box;
  }
  .cipher-dial{width:0;flex:1;min-width:0;gap:8px}
  .cipher-nav-btn{width:34px;height:34px;font-size:0.82rem;border-radius:9px;flex-shrink:0}
  .cipher-window{height:50px;font-size:1.05rem;border-radius:11px;width:100%;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
  .cipher-engage-btn{
    padding:11px 0;
    font-size:0.82rem;
    letter-spacing:2px;
    width:100%;
    box-sizing:border-box;
    display:block;
    border-radius:12px;
    margin:0;
  }
  /* + işareti */
  .cipher-lock-mechanism > div[style*="2.2rem"]{font-size:1.3rem !important;flex-shrink:0}

  /* Ağ ekranı: kompakt */
  .nexus-shell:has(#nexus-board),
  .nexus-shell.nexus-network-lock{
    height:calc(100dvh - var(--nav-h) - var(--mobile-nav-h) - env(safe-area-inset-bottom,0px) - 28px);
    overflow:hidden;
    justify-content:flex-start;
  }
  .nexus-display-container.network-compact{min-height:unset;max-height:88px;overflow:hidden;padding:6px 12px;margin:6px auto 4px;width:100%;box-sizing:border-box;justify-content:center;}
  .nexus-task-progress{margin-bottom:4px}
  .nexus-question{font-size:0.95rem}
  .nexus-game-area{min-height:unset;margin-bottom:0;flex:1;width:100%}
  .nexus-core-node{width:82px;height:82px;font-size:1.1rem}
  .nexus-particle-node{width:66px;height:66px;font-size:0.76rem;padding:6px}

  /* Sentez ekranı: kompakt */
  .nexus-shell:has(.synth-game-container),
  .nexus-shell.nexus-synth-lock{
    height:calc(100dvh - var(--nav-h) - var(--mobile-nav-h) - env(safe-area-inset-bottom,0px) - 28px);
    overflow:hidden;
    justify-content:flex-start;
  }
  .synth-game-container{margin-top:2px;width:100%}
  .synth-sentence{font-size:0.92rem;padding:9px 12px;margin-bottom:8px;border-radius:12px;width:100%;box-sizing:border-box;line-height:1.45}
  .synth-reactor{flex-direction:row !important;padding:10px 10px;gap:8px;border-radius:20px;margin-bottom:8px;width:100%;box-sizing:border-box}
  .synth-slot{width:0;flex:1;min-width:0;height:46px;font-size:0.8rem;border-radius:60px;letter-spacing:0}
  .synth-plus{font-size:1.2rem}
  .synth-pool{gap:7px;max-width:100%}
  .synth-orb{padding:7px 14px;font-size:0.85rem;border-radius:60px}
}
@media(max-width:700px){.nexus-title{font-size:1.5rem;letter-spacing:3px}.nexus-mode-selector{grid-template-columns:1fr;gap:14px;margin-top:16px}.nexus-mode-card{padding:22px 18px}.synth-reactor{flex-direction:column;padding:22px;gap:12px}.synth-slot{width:180px;height:54px}.synth-sentence{font-size:1.2rem;padding:16px}.nexus-game-area{overflow:visible;max-width:100%}.nexus-hud{right:8px;top:10px}.nexus-stat{padding:7px 12px;font-size:.78rem}}@media(max-width:480px){.nexus-title{font-size:1.25rem;letter-spacing:2px}.nexus-hud{right:6px;top:8px;gap:6px}.nexus-stat{padding:5px 10px;font-size:.72rem}.nexus-display-container{width:95%;padding:12px 14px}.nexus-particle-node{width:74px;height:74px;font-size:.78rem}.nexus-core-node{width:96px;height:96px;font-size:1.25rem}.cipher-sentence-box{padding:18px 16px;font-size:1.1rem}.cipher-lock-mechanism{padding:16px}.cipher-dial{width:160px}}/* ── Landscape phone optimization ── */
@media (orientation: landscape) and (max-height: 500px) {
  /* Shell: fullscreen height, scroll allowed */
  .nexus-shell {
    min-height: 100dvh !important;
    height: 100dvh !important;
    overflow-y: auto !important;
    padding: 0 max(16px, env(safe-area-inset-right)) !important;
    padding-left: max(16px, env(safe-area-inset-left)) !important;
    box-sizing: border-box;
  }

  /* Compact header */
  .nexus-header { padding: 6px 0 4px !important; }
  .nexus-header:after { margin: 4px auto 0 !important; }
  .nexus-title { font-size: 1rem !important; letter-spacing: 2px !important; gap: 6px !important; }
  .nexus-subtitle { font-size: 0.65rem !important; margin-top: 2px !important; }
  .v5-badge { font-size: 0.6rem !important; padding: 2px 6px !important; }

  /* Intro mode selector: 3 cards in a row */
  .nexus-mode-selector {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 10px !important;
    margin-top: 8px !important;
    width: 100% !important;
  }
  .nexus-mode-card {
    padding: 12px 10px !important;
    border-radius: 14px !important;
    flex-direction: column !important;
    text-align: center !important;
    gap: 6px !important;
  }
  .nm-icon { font-size: 1.6rem !important; margin-bottom: 4px !important; }
  .nm-title { font-size: 0.8rem !important; margin-bottom: 0 !important; letter-spacing: 0 !important; }
  .nm-desc { display: none !important; }

  /* HUD: smaller, repositioned */
  .nexus-hud { top: 8px !important; right: max(8px, env(safe-area-inset-right)) !important; gap: 4px !important; }
  .nexus-stat { padding: 4px 10px !important; font-size: 0.7rem !important; }

  /* Cipher screen: two-column layout */
  .cipher-sentence-box {
    font-size: 0.85rem !important;
    padding: 8px 12px !important;
    margin: 4px 0 !important;
    border-radius: 10px !important;
    line-height: 1.4 !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .cipher-hint { font-size: 0.68rem !important; margin-top: 6px !important; padding-top: 6px !important; }
  .cipher-lock-mechanism {
    flex-direction: row !important;
    padding: 8px 10px !important;
    gap: 6px !important;
    border-radius: 14px !important;
    margin: 4px 0 !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .cipher-dial { flex: 1 !important; min-width: 0 !important; width: 0 !important; gap: 5px !important; }
  .cipher-nav-btn { width: 28px !important; height: 28px !important; font-size: 0.72rem !important; border-radius: 7px !important; }
  .cipher-window { height: 40px !important; font-size: 0.88rem !important; border-radius: 8px !important; }
  .cipher-engage-btn { padding: 8px 0 !important; font-size: 0.75rem !important; letter-spacing: 1.5px !important; border-radius: 10px !important; margin: 4px 0 !important; }

  /* Synthesis screen */
  .synth-game-container { margin-top: 0 !important; }
  .synth-sentence {
    font-size: 0.8rem !important;
    padding: 7px 10px !important;
    margin-bottom: 5px !important;
    border-radius: 10px !important;
    line-height: 1.35 !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .synth-reactor {
    flex-direction: row !important;
    padding: 8px !important;
    gap: 6px !important;
    border-radius: 14px !important;
    margin-bottom: 5px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .synth-slot { height: 38px !important; font-size: 0.72rem !important; }
  .synth-plus { font-size: 1rem !important; }
  .synth-pool { gap: 5px !important; }
  .synth-orb { padding: 5px 12px !important; font-size: 0.78rem !important; border-radius: 40px !important; }

  /* Network screen: 2-column layout (question left, graph right) */
  .nexus-shell:has(#nexus-board),
  .nexus-shell.nexus-network-lock {
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    align-items: stretch !important;
    height: 100dvh !important;
    overflow: hidden !important;
    padding: 0 !important;
    gap: 0 !important;
  }
  .nexus-shell:has(#nexus-board) .nexus-header { display: none !important; }
  .nexus-shell:has(#nexus-board) .nexus-bg-stars { display: none !important; }
  .nexus-shell:has(#nexus-board) .nexus-display-container,
  .nexus-shell:has(#nexus-board) .nexus-display-container.network-compact {
    width: 36% !important;
    flex-shrink: 0 !important;
    height: 100dvh !important;
    margin: 0 !important;
    border-radius: 0 16px 16px 0 !important;
    box-sizing: border-box !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: flex-start !important;
    padding: 14px max(14px, env(safe-area-inset-right)) 14px max(14px, env(safe-area-inset-left)) !important;
    min-height: unset !important;
  }
  .nexus-shell:has(#nexus-board) .nexus-task-progress { margin-bottom: 6px !important; }
  .nexus-shell:has(#nexus-board) .nexus-question { font-size: 0.95rem !important; text-align: left !important; }
  .nexus-shell:has(#nexus-board) .nexus-example-text { font-size: 0.78rem !important; }
  .nexus-shell:has(#nexus-board) #nexus-board {
    flex: 1 !important;
    height: 100dvh !important;
    min-height: 0 !important;
    min-width: 0 !important;
    margin: 0 !important;
    margin-right: max(0px, env(safe-area-inset-right)) !important;
  }
  .nexus-shell:has(#nexus-board) .nexus-hud {
    top: 8px !important;
    right: max(8px, env(safe-area-inset-right)) !important;
  }
  .nexus-core-node { width: 62px !important; height: 62px !important; font-size: 0.85rem !important; }
  .nexus-particle-node { width: 52px !important; height: 52px !important; font-size: 0.65rem !important; padding: 4px !important; }
}

.nexus-net-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:2}.nexus-line.ambient-line{stroke:#a78bfa33;stroke-width:1;stroke-dasharray:4 8;animation:nx-ambient-dash 3s linear infinite}@keyframes nx-ambient-dash{to{stroke-dashoffset:-36}}.nx-spark-ring{position:absolute;inset:-22px;border-radius:50%;pointer-events:none;z-index:0}.nx-spark-ring:before,.nx-spark-ring:after{content:"";position:absolute;inset:0;border-radius:50%}.nx-spark-ring:before{background:conic-gradient(transparent 0deg,rgba(167,139,250,.55) 4deg,transparent 8deg,transparent 88deg,rgba(167,139,250,.55) 92deg,transparent 96deg,transparent 178deg,rgba(167,139,250,.55) 182deg,transparent 186deg,transparent 268deg,rgba(167,139,250,.55) 272deg,transparent 276deg);animation:nx-spark-spin 5s linear infinite}.nx-spark-ring:after{background:conic-gradient(transparent 0deg,rgba(245,211,112,.4) 3deg,transparent 6deg,transparent 43deg,rgba(245,211,112,.4) 46deg,transparent 49deg,transparent 133deg,rgba(245,211,112,.4) 136deg,transparent 139deg,transparent 223deg,rgba(245,211,112,.4) 226deg,transparent 229deg,transparent 313deg,rgba(245,211,112,.4) 316deg,transparent 319deg);animation:nx-spark-spin 7s linear infinite reverse}@keyframes nx-spark-spin{to{transform:rotate(360deg)}}.nx-known-badge{position:absolute;top:-7px;right:-7px;width:22px;height:22px;background:linear-gradient(135deg,#10b981,#059669);border-radius:50%;font-size:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;box-shadow:0 0 10px #10b981cc,0 2px 6px #0006;animation:nx-badge-pop .35s cubic-bezier(.34,1.56,.64,1) both;z-index:15;pointer-events:none}@keyframes nx-badge-pop{0%{transform:scale(0) rotate(-45deg);opacity:0}to{transform:scale(1) rotate(0);opacity:1}}.nexus-particle-node.solved{background:linear-gradient(135deg,#10b98138,#10b98114);border-color:#10b981;border-width:2px;color:#34d399;font-weight:800;box-shadow:0 0 0 5px #10b9811f,0 0 28px #10b9818c,inset 0 1px #ffffff1f;transform:scale(1.14);pointer-events:none;animation:nx-solved-shimmer 2.5s ease-in-out infinite}@keyframes nx-solved-shimmer{0%,to{box-shadow:0 0 0 5px #10b9811f,0 0 28px #10b9818c,inset 0 1px #ffffff1f}50%{box-shadow:0 0 0 8px #10b9812e,0 0 42px #34d399bf,inset 0 1px #ffffff2e}}.nexus-display-container.network-compact{min-height:unset;max-height:96px;overflow:hidden;padding:8px 24px;margin:8px auto;justify-content:center;}
.main-content:has(.nexus-shell){padding:0!important;max-width:100%!important;}