/* ============ CUBE CLASH — Season 8 ============ */
:root{
  --bg:#0b0e1a;
  --bg2:#101529;
  --panel:#161d36;
  --panel2:#1d2545;
  --line:#2a3461;
  --ink:#eef1ff;
  --ink-dim:#8d97c4;
  --lime:#c8f549;
  --cyan:#3ee6ff;
  --magenta:#ff4d8d;
  --gold:#ffd24a;
  --silver:#cdd6ea;
  --bronze:#e0935a;
  --ok:#4ade80;
  --bad:#ff5d6c;
  --r:18px;
  --font-display:'Bungee', 'Arial Black', sans-serif;
  --font-body:'Rubik', 'Segoe UI', sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  overflow:hidden;
  user-select:none;
}
#bg-grid{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(62,230,255,.10), transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 110%, rgba(200,245,73,.07), transparent 60%),
    linear-gradient(rgba(62,230,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62,230,255,.05) 1px, transparent 1px);
  background-size:auto,auto,44px 44px,44px 44px;
}

/* ---------- screens ---------- */
.screen{
  position:fixed;inset:0;z-index:1;
  display:none;flex-direction:column;
  overflow:hidden;
}
.screen.active{display:flex;animation:screenIn .35s cubic-bezier(.2,.9,.3,1.2)}
@keyframes screenIn{from{opacity:0;transform:translateY(14px) scale(.99)}to{opacity:1;transform:none}}

/* ---------- buttons ---------- */
.btn{
  font-family:var(--font-display);
  font-size:1rem;letter-spacing:.5px;
  border:none;border-radius:14px;
  padding:14px 22px;cursor:pointer;
  color:var(--ink);background:var(--panel2);
  border:2px solid var(--line);
  transition:transform .12s, box-shadow .12s, filter .12s;
}
.btn:hover{transform:translateY(-2px);filter:brightness(1.12)}
.btn:active{transform:translateY(1px) scale(.98)}
.btn-primary{
  background:var(--lime);color:#0d1500;border-color:var(--lime);
  box-shadow:0 0 0 rgba(200,245,73,0), 0 6px 0 #7f9c2a;
}
.btn-primary:hover{box-shadow:0 0 26px rgba(200,245,73,.45), 0 6px 0 #7f9c2a}
.btn-primary:active{box-shadow:0 1px 0 #7f9c2a}
.btn-big{font-size:1.25rem;padding:18px 34px}
.btn-ghost{background:transparent}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- login ---------- */
.login-wrap{
  margin:auto;width:min(520px,92vw);text-align:center;
  max-height:100%;overflow-y:auto;padding:32px 6px;
}
.logo{
  font-family:var(--font-display);font-size:clamp(2.6rem,8vw,4.2rem);
  line-height:.95;color:var(--ink);
  text-shadow:0 0 34px rgba(62,230,255,.5);
}
.logo span{color:var(--lime);text-shadow:0 0 34px rgba(200,245,73,.55)}
.season-tag{
  font-family:var(--font-display);font-size:.8rem;letter-spacing:3px;
  color:var(--cyan);margin:10px 0 26px;
}
#profile-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}
.profile-row{
  display:flex;align-items:center;gap:14px;
  background:var(--panel);border:2px solid var(--line);border-radius:var(--r);
  padding:12px 16px;cursor:pointer;transition:border-color .15s, transform .15s;
  text-align:left;
}
.profile-row:hover{border-color:var(--lime);transform:translateX(4px)}
.profile-row .pav{font-size:1.9rem}
.profile-row .pname{font-family:var(--font-display);font-size:1.05rem;flex:1}
.profile-row .pxp{color:var(--ink-dim);font-size:.85rem}
.profile-row .pdel{background:none;border:none;color:var(--ink-dim);font-size:1rem;cursor:pointer;padding:6px}
.profile-row .pdel:hover{color:var(--bad)}
.new-profile{
  background:var(--panel);border:2px dashed var(--line);border-radius:var(--r);
  padding:20px;display:flex;flex-direction:column;gap:14px;
}
.new-profile h2{font-family:var(--font-display);font-size:1rem;color:var(--ink-dim)}
.new-profile input{
  background:var(--bg2);border:2px solid var(--line);border-radius:12px;
  color:var(--ink);font-family:var(--font-body);font-size:1.15rem;font-weight:600;
  padding:13px 16px;text-align:center;outline:none;
}
.new-profile input:focus{border-color:var(--cyan)}
.login-error{color:var(--bad);font-weight:700;font-size:.9rem}
.login-note{color:var(--ink-dim);font-size:.78rem}
.avatar-pick{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.avatar-pick button{
  font-size:1.7rem;background:var(--bg2);border:2px solid var(--line);
  border-radius:12px;width:54px;height:54px;cursor:pointer;transition:all .12s;
}
.avatar-pick button:hover{transform:scale(1.12)}
.avatar-pick button.sel{border-color:var(--lime);background:#2a3514;box-shadow:0 0 14px rgba(200,245,73,.4)}
.avatar-pick button.locked{opacity:.3;filter:grayscale(1)}

/* ---------- HUD ---------- */
.hud{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 18px;gap:10px;z-index:5;
}
.hud-right{display:flex;gap:8px;align-items:center}
.hud-chip{
  background:var(--panel);border:2px solid var(--line);border-radius:999px;
  color:var(--ink);padding:8px 14px;font-weight:800;font-size:.9rem;
  font-family:var(--font-body);cursor:default;display:flex;align-items:center;gap:7px;
}
button.hud-chip{cursor:pointer;transition:border-color .15s}
button.hud-chip:hover{border-color:var(--cyan)}
.streak-chip{color:#ffb24a}
.xp-chip{min-width:130px;position:relative;overflow:hidden}
.xp-chip .xp-fill{
  position:absolute;inset:0;background:linear-gradient(90deg,rgba(62,230,255,.25),rgba(62,230,255,.45));
  width:0%;transition:width .6s cubic-bezier(.2,.9,.3,1.2);
}
.xp-chip .xp-text{position:relative;z-index:1;font-size:.8rem}

/* ---------- HUB ---------- */
#screen-hub{overflow:hidden}
.hub-scroll{flex:1;overflow-y:auto;padding:0 18px 80px}
.hub-head{display:flex;align-items:center;justify-content:center;gap:18px;margin:6px 0 16px}
.hub-title{
  font-family:var(--font-display);font-size:clamp(1.9rem,6vw,3rem);
  text-shadow:0 0 30px rgba(62,230,255,.35);
}
.hub-title em{color:var(--lime);font-style:normal;text-shadow:0 0 30px rgba(200,245,73,.5)}
.rank-badge{
  font-family:var(--font-display);font-size:.8rem;letter-spacing:1px;
  background:linear-gradient(135deg,var(--panel2),var(--panel));
  border:2px solid var(--cyan);color:var(--cyan);
  border-radius:10px;padding:8px 14px;transform:rotate(-2deg);
}
.hub-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:26px}

.level-map{
  width:min(560px,94vw);margin:0 auto;display:flex;flex-direction:column;gap:0;
  position:relative;padding-bottom:30px;
}
.level-node{
  display:flex;align-items:center;gap:18px;
  background:var(--panel);border:2px solid var(--line);border-radius:var(--r);
  padding:16px 18px;cursor:pointer;position:relative;
  transition:transform .15s, border-color .15s, box-shadow .15s;
  margin-bottom:22px;width:88%;
}
.level-node:nth-child(odd){align-self:flex-start;transform:rotate(-.6deg)}
.level-node:nth-child(even){align-self:flex-end;transform:rotate(.6deg)}
.level-node:hover{border-color:var(--lime);transform:scale(1.02);box-shadow:0 8px 30px rgba(0,0,0,.45)}
.level-node.locked{opacity:.5;cursor:not-allowed;filter:saturate(.4)}
.level-node.locked:hover{border-color:var(--line);transform:none;box-shadow:none}
.level-node.boss{border-color:var(--magenta);background:linear-gradient(135deg,#2a1430,var(--panel))}
.level-node.boss:hover{box-shadow:0 0 30px rgba(255,77,141,.35)}
.level-node .lv-icon{
  font-size:2rem;width:62px;height:62px;flex:none;
  display:grid;place-items:center;border-radius:14px;
  background:var(--bg2);border:2px solid var(--line);
}
.level-node .lv-body{flex:1;min-width:0}
.level-node .lv-num{font-family:var(--font-display);font-size:.65rem;color:var(--cyan);letter-spacing:2px}
.level-node.boss .lv-num{color:var(--magenta)}
.level-node .lv-title{font-family:var(--font-display);font-size:1.05rem;margin:2px 0}
.level-node .lv-sub{color:var(--ink-dim);font-size:.82rem}
.level-node .lv-medal{font-size:1.7rem;width:44px;text-align:center;flex:none}
.medal{display:inline-block;filter:drop-shadow(0 0 8px rgba(255,210,74,.6))}
.medal.none{opacity:.25;filter:grayscale(1)}

/* ---------- BRIEFING ---------- */
.brief-wrap{
  margin:auto;width:min(820px,94vw);max-height:100%;overflow-y:auto;
  padding:30px 8px;text-align:center;
}
.brief-mission{font-family:var(--font-display);color:var(--cyan);letter-spacing:3px;font-size:.8rem}
#brief-title{font-family:var(--font-display);font-size:clamp(1.6rem,5vw,2.6rem);margin:8px 0 24px}
.brief-cards{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:28px}
.brief-card{
  background:var(--panel);border:2px solid var(--line);border-radius:var(--r);
  width:min(240px,90vw);padding:18px 16px;text-align:center;
  animation:cardPop .4s cubic-bezier(.2,.9,.3,1.4) backwards;
}
.brief-card:nth-child(2){animation-delay:.1s}
.brief-card:nth-child(3){animation-delay:.2s}
@keyframes cardPop{from{opacity:0;transform:scale(.85) translateY(16px)}to{opacity:1;transform:none}}
.brief-card .bc-visual{height:110px;display:grid;place-items:center;margin-bottom:10px}
.brief-card .bc-visual svg{max-width:100%;max-height:110px}
.brief-card h3{font-family:var(--font-display);font-size:.85rem;color:var(--lime);margin-bottom:8px}
.brief-card p{font-size:.92rem;color:var(--ink);line-height:1.45}
.brief-card p b{color:var(--cyan)}
.brief-nav{display:flex;gap:14px;justify-content:center;align-items:center}

/* ---------- QUIZ ---------- */
#screen-quiz{background:radial-gradient(ellipse 100% 80% at 50% 0%, #131a33, var(--bg))}
.quiz-top{display:flex;align-items:center;gap:14px;padding:14px 18px}
.quiz-quit{
  background:var(--panel);border:2px solid var(--line);color:var(--ink-dim);
  width:42px;height:42px;border-radius:12px;font-size:1rem;cursor:pointer;flex:none;
}
.quiz-quit:hover{color:var(--bad);border-color:var(--bad)}
.boss-bar-wrap{flex:1}
.boss-label{
  font-family:var(--font-display);font-size:.7rem;letter-spacing:2px;
  color:var(--ink-dim);margin-bottom:5px;display:flex;justify-content:space-between;
}
.boss-bar{height:16px;background:var(--bg2);border:2px solid var(--line);border-radius:999px;overflow:hidden}
.boss-bar-fill{
  height:100%;width:100%;border-radius:999px;
  background:linear-gradient(90deg,var(--magenta),#ff8d4d);
  box-shadow:0 0 14px rgba(255,77,141,.6);
  transition:width .5s cubic-bezier(.2,.9,.3,1.2);
}
.quiz-streak{font-family:var(--font-display);font-size:1rem;color:#ffb24a;min-width:64px;text-align:right}

.quiz-body{
  flex:1;display:flex;flex-direction:column;align-items:center;
  padding:10px 18px 30px;overflow-y:auto;
}
.q-card{
  width:min(680px,94vw);text-align:center;
  animation:screenIn .3s cubic-bezier(.2,.9,.3,1.2);
}
.q-prompt{
  font-size:clamp(1.15rem,3.4vw,1.5rem);font-weight:800;line-height:1.4;
  margin:6px 0 18px;
}
.q-prompt small{display:block;font-weight:400;color:var(--ink-dim);font-size:.85rem;margin-top:6px}
.q-visual{margin:0 auto 20px;display:grid;place-items:center}
.q-visual svg{max-width:min(420px,88vw);height:auto}
.q-choices{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.q-choices.txt-1col{grid-template-columns:1fr}
.q-choice{
  background:var(--panel);border:2px solid var(--line);border-radius:14px;
  color:var(--ink);font-family:var(--font-body);font-weight:700;font-size:1.05rem;
  padding:16px 14px;cursor:pointer;transition:all .12s;min-height:58px;
  display:grid;place-items:center;
}
.q-choice svg{max-width:130px;max-height:110px}
.q-choice:hover{border-color:var(--cyan);transform:translateY(-2px)}
.q-choice.correct{border-color:var(--ok);background:#15301f;box-shadow:0 0 18px rgba(74,222,128,.4)}
.q-choice.wrong{border-color:var(--bad);background:#33161c;animation:shake .4s}
.q-choice:disabled{cursor:default}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-7px)}40%{transform:translateX(7px)}60%{transform:translateX(-5px)}80%{transform:translateX(5px)}}

.q-numwrap{display:flex;gap:10px;justify-content:center;align-items:stretch;flex-wrap:wrap}
.q-numwrap input{
  background:var(--bg2);border:2px solid var(--line);border-radius:14px;
  color:var(--ink);font-family:var(--font-display);font-size:1.5rem;
  padding:12px 18px;width:200px;text-align:center;outline:none;
}
.q-numwrap input:focus{border-color:var(--cyan);box-shadow:0 0 16px rgba(62,230,255,.25)}
.q-numwrap .unit{
  display:grid;place-items:center;color:var(--ink-dim);
  font-weight:800;font-size:1.1rem;min-width:54px;
}
.q-hint{margin-top:14px;color:var(--ink-dim);font-size:.85rem}
.q-hint b{color:var(--lime)}
.calc-ok{margin-top:10px;font-size:.78rem;color:var(--ink-dim)}

/* feedback */
.feedback-layer{position:fixed;left:0;right:0;bottom:0;z-index:30;pointer-events:none}
.fb{
  pointer-events:auto;
  width:min(680px,94vw);margin:0 auto 18px;border-radius:var(--r);
  padding:18px 20px;text-align:center;
  animation:fbUp .3s cubic-bezier(.2,.9,.3,1.3);
  box-shadow:0 -10px 50px rgba(0,0,0,.5);
}
@keyframes fbUp{from{transform:translateY(40px);opacity:0}to{transform:none;opacity:1}}
.fb.good{background:#143420;border:2px solid var(--ok)}
.fb.bad{background:#331820;border:2px solid var(--bad)}
.fb h3{font-family:var(--font-display);font-size:1.2rem;margin-bottom:4px}
.fb.good h3{color:var(--ok)}
.fb.bad h3{color:var(--bad)}
.fb p{font-size:.98rem;line-height:1.45;margin-bottom:12px}
.fb p b{color:var(--lime)}
.fb .btn{padding:11px 26px}

/* ---------- RESULT ---------- */
.result-wrap{margin:auto;text-align:center;width:min(560px,94vw);max-height:100%;overflow-y:auto;padding:30px 4px}
.result-medal{
  font-size:6rem;line-height:1;margin:10px 0;
  animation:medalDrop .7s cubic-bezier(.2,.9,.3,1.4);
  display:inline-block;
}
@keyframes medalDrop{0%{transform:translateY(-120px) scale(.4) rotate(-30deg);opacity:0}60%{transform:translateY(10px) scale(1.1)}100%{transform:none;opacity:1}}
.result-title{font-family:var(--font-display);font-size:clamp(1.6rem,6vw,2.4rem)}
.result-medal-name{font-family:var(--font-display);font-size:1rem;letter-spacing:2px;margin:6px 0 18px}
.result-medal-name.goud{color:var(--gold)}
.result-medal-name.zilver{color:var(--silver)}
.result-medal-name.brons{color:var(--bronze)}
.result-medal-name.none{color:var(--ink-dim)}
.result-stats{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:26px}
.rstat{
  background:var(--panel);border:2px solid var(--line);border-radius:14px;
  padding:12px 20px;min-width:110px;
}
.rstat .v{font-family:var(--font-display);font-size:1.4rem;color:var(--lime)}
.rstat .l{color:var(--ink-dim);font-size:.78rem;font-weight:700;letter-spacing:1px}
.result-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- MEMORY ---------- */
.memory-wrap{flex:1;display:flex;flex-direction:column;padding:16px;overflow-y:auto}
.memory-head{display:flex;align-items:center;gap:14px;justify-content:space-between;width:min(640px,94vw);margin:0 auto 18px}
.memory-head h1{font-family:var(--font-display);font-size:1.3rem}
.memory-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:10px;
  width:min(640px,94vw);margin:0 auto;
}
.mcard{
  aspect-ratio:3/2.6;perspective:600px;cursor:pointer;border:none;background:none;padding:0;
}
.mcard-inner{
  position:relative;width:100%;height:100%;
  transform-style:preserve-3d;transition:transform .4s cubic-bezier(.2,.9,.3,1.2);
}
.mcard.flip .mcard-inner{transform:rotateY(180deg)}
.mface{
  position:absolute;inset:0;backface-visibility:hidden;border-radius:12px;
  display:grid;place-items:center;padding:6px;text-align:center;
}
.mface.back{
  background:linear-gradient(135deg,var(--panel2),var(--panel));
  border:2px solid var(--line);
  font-family:var(--font-display);font-size:1.4rem;color:var(--cyan);
}
.mcard:hover .mface.back{border-color:var(--cyan)}
.mface.front{
  background:var(--bg2);border:2px solid var(--cyan);
  transform:rotateY(180deg);
  font-weight:800;font-size:.78rem;line-height:1.25;color:var(--ink);
}
.mface.front svg{max-width:80%;max-height:70%}
.mcard.matched .mface.front{border-color:var(--ok);box-shadow:0 0 14px rgba(74,222,128,.45)}
.mcard.matched{cursor:default;animation:matchPulse .5s}
@keyframes matchPulse{50%{transform:scale(1.08)}}

/* ---------- overlays ---------- */
.overlay{position:fixed;inset:0;z-index:40;background:rgba(5,8,18,.8);display:grid;place-items:center;backdrop-filter:blur(4px)}
.overlay.hidden{display:none}
.overlay-card{
  background:var(--panel);border:2px solid var(--line);border-radius:22px;
  width:min(620px,94vw);max-height:86vh;overflow-y:auto;padding:26px;position:relative;
  animation:cardPop .3s cubic-bezier(.2,.9,.3,1.3);
}
.overlay-card h2{font-family:var(--font-display);font-size:1.3rem;margin-bottom:6px}
.overlay-sub{color:var(--ink-dim);font-size:.9rem;margin-bottom:18px}
.overlay-close{
  position:absolute;top:14px;right:14px;background:var(--bg2);border:2px solid var(--line);
  color:var(--ink-dim);width:38px;height:38px;border-radius:10px;cursor:pointer;font-size:.95rem;
}
.overlay-close:hover{color:var(--bad);border-color:var(--bad)}
.formule-list{display:flex;flex-direction:column;gap:8px}
.formule-item{
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  background:var(--bg2);border:2px solid var(--line);border-radius:12px;padding:11px 16px;
}
.formule-item b{font-family:var(--font-display);font-size:.78rem;color:var(--cyan);white-space:nowrap}
.formule-item.acc b{color:var(--lime)}
.formule-item span{font-weight:700;font-size:.92rem;text-align:right}

/* shop */
.shop-section{margin-bottom:20px}
.shop-section h3{font-family:var(--font-display);font-size:.85rem;color:var(--ink-dim);margin-bottom:10px;letter-spacing:1px}
.shop-grid{display:flex;flex-wrap:wrap;gap:8px}
.shop-item{
  font-size:1.7rem;background:var(--bg2);border:2px solid var(--line);
  border-radius:12px;width:60px;height:60px;cursor:pointer;position:relative;transition:all .12s;
}
.shop-item:hover{transform:scale(1.1)}
.shop-item.owned.sel{border-color:var(--lime);box-shadow:0 0 12px rgba(200,245,73,.4)}
.shop-item .price{
  position:absolute;bottom:-8px;left:50%;transform:translateX(-50%);
  background:var(--panel2);border:1px solid var(--line);border-radius:999px;
  font-size:.6rem;font-weight:800;color:var(--gold);padding:1px 7px;font-family:var(--font-body);
  white-space:nowrap;
}
.shop-logout{margin-top:8px;width:100%}

/* ---------- toast & confetti ---------- */
#toast-layer{position:fixed;top:74px;left:0;right:0;z-index:60;pointer-events:none;display:flex;flex-direction:column;align-items:center;gap:8px}
.toast{
  background:var(--panel2);border:2px solid var(--lime);color:var(--lime);
  font-family:var(--font-display);font-size:.95rem;border-radius:999px;padding:10px 22px;
  animation:toastIn 1.6s ease forwards;box-shadow:0 0 24px rgba(200,245,73,.3);
}
.toast.cyan{border-color:var(--cyan);color:var(--cyan);box-shadow:0 0 24px rgba(62,230,255,.3)}
@keyframes toastIn{0%{transform:translateY(-18px) scale(.8);opacity:0}12%{transform:none;opacity:1}80%{opacity:1}100%{opacity:0;transform:translateY(-10px)}}
#confetti-canvas{position:fixed;inset:0;z-index:50;pointer-events:none}

/* svg shared */
.iso-face-top{fill:#d9f87a}
.iso-face-left{fill:#86b32d}
.iso-face-right{fill:#a8d943}
.iso-stroke{stroke:#1c2403;stroke-width:1.2;stroke-linejoin:round}
.view-cell{fill:var(--cyan);stroke:#0b3540;stroke-width:1.5}
.view-cell.empty{fill:transparent;stroke:rgba(62,230,255,.18)}
.view-num{font:800 13px var(--font-body);fill:#062a33;text-anchor:middle}

@media (max-width:540px){
  .q-choices{grid-template-columns:1fr 1fr}
  .memory-grid{grid-template-columns:repeat(4,1fr)}
  .level-node{width:100%}
  .hud-chip{padding:7px 10px;font-size:.8rem}
  .xp-chip{min-width:96px}
}