*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#1a1a2e;
  --card:#16213e;
  --text:#e0e0e0;
  --env-primary:#7A94AB;
  --env-secondary:#5E7A94;
  --env-glow:rgba(122,148,171,0.25);
  --transition:.5s;
}

body{
  font-family:'Segoe UI',system-ui,-apple-system,sans-serif;
  background-color:#000;
  background-size:cover;
  background-position:center center;
  background-repeat:no-repeat;
  background-attachment:fixed;
  color:var(--text);
  min-height:100vh;
  display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  overflow-x:hidden;overflow-y:auto;user-select:none;
}

.container{
  width:100%;max-width:680px;padding:24px;
  display:flex;flex-direction:column;gap:28px;
  position:relative;z-index:1;
}

/* ── Top bar ── */
.top-bar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:rgba(0,0,0,.55);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.08);
  border-radius:14px;
  padding:10px 14px;
}
.progress-bar{
  flex:1;height:10px;
  background:rgba(255,255,255,.08);
  border-radius:5px;overflow:hidden;position:relative;
}
.progress-fill{
  position:absolute;inset:0;
  background:var(--env-primary);
  transform:scaleX(0);transform-origin:left;
  transition:background var(--transition);
  border-radius:5px;
}
.earnings{
  font-size:1.1rem;font-weight:700;white-space:nowrap;
  color:var(--env-primary);transition:color var(--transition);
  min-width:90px;text-align:right;
}

/* ── Stage (glass card floating over full-page bg) ── */
.stage{
  background:rgba(0,0,0,.55);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:2px solid rgba(255,255,255,.1);
  border-radius:20px;min-height:300px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:20px;padding:40px 24px;
  position:relative;overflow:hidden;
  transition:border-color .3s,box-shadow .3s;
}
.stage::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at center bottom,var(--env-glow),transparent 70%);
  transition:background var(--transition);
  pointer-events:none;z-index:0;
}
.stage.stage-miss{border-color:rgba(239,68,68,.4)}
.stage.stage-low{border-color:rgba(192,96,74,.35)}
.stage.stage-mid{border-color:rgba(94,194,105,.3)}
.stage.stage-high{border-color:rgba(251,191,36,.4);box-shadow:0 0 30px rgba(251,191,36,.1)}

.stage-label{
  font-size:1.15rem;font-weight:600;letter-spacing:.3px;
  opacity:.9;z-index:1;
  text-shadow:0 1px 6px rgba(0,0,0,.8);
}

/* ── Corridor (ITI) ── */
.corridor{display:flex;align-items:center;gap:12px;z-index:1}
.corridor .dot{
  width:36px;height:36px;border-radius:50%;
  background:rgba(255,255,255,.08);border:2px solid rgba(255,255,255,.12);
  transition:all .35s ease;
  display:flex;align-items:center;justify-content:center;
  font-size:.8rem;font-weight:700;color:rgba(255,255,255,.25);
}
.corridor .dot.visited{
  background:var(--env-secondary);border-color:var(--env-primary);
  color:#fff;box-shadow:0 0 12px var(--env-glow);
}
.corridor .dot.current{
  background:var(--env-primary);border-color:#fff;color:#fff;
  box-shadow:0 0 20px var(--env-glow);transform:scale(1.2);
  animation:dotPulse 1s ease-in-out infinite;
}
@keyframes dotPulse{
  0%,100%{box-shadow:0 0 20px var(--env-glow)}
  50%{box-shadow:0 0 35px var(--env-glow)}
}
.corridor .line{width:24px;height:3px;background:rgba(255,255,255,.1);border-radius:2px}
.corridor .line.active{background:var(--env-secondary)}
.iti-counter{
  font-size:.95rem;opacity:.7;z-index:1;margin-top:4px;letter-spacing:.2px;
  text-shadow:0 1px 4px rgba(0,0,0,.8);
}

/* ── Patch ── */
.patch-view{
  z-index:1;display:flex;flex-direction:column;align-items:center;gap:16px;
  width:100%;
}
.patch-icon{
  position:absolute;top:14px;right:14px;z-index:1;
  width:120px;height:120px;object-fit:contain;
  filter:drop-shadow(0 4px 10px rgba(0,0,0,.6));
}
.patch-timer{
  font-size:.9rem;opacity:.6;letter-spacing:.2px;
  text-shadow:0 1px 4px rgba(0,0,0,.8);
}

/* ── Live reward feed ── */
.reward-feed{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  width:100%;min-height:120px;
}

/* ── Gold nuggets ── */
.nugget{
  display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at 35% 35%,#ffe066,#d4a017 60%,#8b6000);
  border-radius:58% 42% 55% 45% / 45% 55% 42% 58%;
  color:#3d2000;font-weight:900;
  box-shadow:0 4px 18px rgba(212,160,23,.5);
  animation:nuggetPop .4s cubic-bezier(.34,1.56,.64,1);
}
.nugget-sm{width:52px;height:48px;font-size:.85rem}
.nugget-md{width:80px;height:74px;font-size:1.1rem}
.nugget-lg{width:114px;height:106px;font-size:1.45rem}

.feed-miss{
  color:#c0604a;font-size:1.2rem;font-weight:600;
  animation:shake .5s ease;
  text-shadow:0 1px 4px rgba(0,0,0,.6);
}

@keyframes nuggetPop{
  from{transform:scale(0) rotate(-15deg);opacity:0}
  to{transform:scale(1) rotate(0deg);opacity:1}
}
@keyframes shake{
  0%,100%{transform:translateX(0)}
  15%{transform:translateX(-10px)}30%{transform:translateX(10px)}
  45%{transform:translateX(-8px)}60%{transform:translateX(8px)}
  75%{transform:translateX(-4px)}90%{transform:translateX(4px)}
}

/* ── Nugget legend (start screen) ── */
.nugget-legend{
  display:flex;align-items:flex-end;justify-content:center;gap:18px;
  padding:2px 0;
}
.nugget-legend-item{
  display:flex;flex-direction:column;align-items:center;gap:6px;
}
.nugget-legend-item span{
  font-size:.82rem;opacity:.55;
}
.nugget-legend .nugget-sm{width:44px;height:40px;font-size:.78rem}
.nugget-legend .nugget-md{width:66px;height:62px;font-size:1rem}
.nugget-legend .nugget-lg{width:90px;height:84px;font-size:1.18rem}

/* ── Buttons ── */
.actions{display:flex;gap:16px}
.btn{
  flex:1;padding:18px 24px;font-size:1.15rem;font-weight:700;
  border:none;border-radius:14px;cursor:pointer;
  transition:all .15s ease;
  display:flex;align-items:center;justify-content:center;gap:10px;
  letter-spacing:.3px;position:relative;overflow:hidden;
}
.btn::after{
  content:'';position:absolute;inset:0;
  background:rgba(255,255,255,.15);
  transform:scale(0);border-radius:50%;
  transition:transform .4s ease;
}
.btn:active::after{transform:scale(3);transition:transform 0s}
.btn-move{background:linear-gradient(135deg,#3a7bd5,#2563a8);color:#fff}
.btn-move:hover:not(:disabled){
  background:linear-gradient(135deg,#4a8be5,#3573b8);
  transform:translateY(-2px);box-shadow:0 6px 20px rgba(58,123,213,.35);
}
.btn:disabled{opacity:.25;cursor:not-allowed;transform:none!important;box-shadow:none!important}
.btn .icon{font-size:1.3rem}

/* ── Overlays ── */
.overlay{
  position:fixed;inset:0;
  display:flex;align-items:center;justify-content:center;
  z-index:100;pointer-events:none;opacity:0;
  transition:opacity .4s;
}
.overlay.visible{opacity:1;pointer-events:auto}
.overlay-bg{position:absolute;inset:0;background:rgba(0,0,0,.7)}
.overlay-content{
  position:relative;
  background:rgba(10,10,20,.92);
  padding:48px 56px;border-radius:24px;text-align:center;
  border:2px solid var(--env-primary);
  box-shadow:0 0 60px var(--env-glow);
  transition:border-color var(--transition),box-shadow var(--transition);
}
.overlay-content h2{font-size:1.6rem;margin-bottom:8px}
.overlay-content p{font-size:1.1rem;opacity:.75}
.end-overlay-content h2{font-size:2.2rem;margin-bottom:12px;color:#fbbf24}
.end-overlay-content p{font-size:1.2rem}
.switch-env-name{
  margin-top:18px;
  font-size:2.4rem;font-weight:900;letter-spacing:.5px;
  text-shadow:0 0 30px currentColor;
}

/* ── End screen ── */
.end-screen{
  display:none;flex-direction:column;align-items:center;
  gap:20px;text-align:center;
  background:rgba(0,0,0,.65);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:20px;
  padding:48px 56px;
}
.end-screen h1{font-size:2rem;margin-bottom:4px}
.end-screen .stat{font-size:1.2rem;opacity:.8}
.end-screen .big-number{font-size:3rem;font-weight:800;color:var(--env-primary);margin:8px 0}

/* ── Start screen ── */
.start-screen{
  display:flex;flex-direction:column;align-items:center;
  gap:12px;text-align:center;
}
.start-screen h1{font-size:2rem;margin-bottom:0}
.start-screen p{font-size:1rem;opacity:.8;max-width:500px;line-height:1.5}
.leaderboard{
  width:100%;max-width:340px;
  padding:10px 16px 8px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  border-radius:12px;
  display:flex;flex-direction:column;gap:6px;
}
.leaderboard-title{font-size:.9rem;opacity:.6;letter-spacing:.04em;margin-bottom:2px}
.leaderboard-rows{display:flex;flex-direction:column;gap:4px}
.leaderboard-row{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  font-size:.95rem;
}
.leaderboard-medal{font-size:1rem;flex-shrink:0;width:22px;text-align:center}
.leaderboard-name{flex:1;text-align:left;opacity:.85;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.leaderboard-score{font-weight:800;color:var(--env-primary);white-space:nowrap}

.name-input{
  width:100%;max-width:340px;padding:10px 16px;
  background:rgba(255,255,255,.06);border:2px solid rgba(255,255,255,.12);
  border-radius:12px;color:#fff;font-size:1.1rem;
  outline:none;transition:border-color .2s;text-align:center;
}
.name-input:focus{border-color:rgba(255,255,255,.3)}
.name-input.error{border-color:#ef4444}
.name-input::placeholder{color:rgba(255,255,255,.3)}
.start-btn{
  margin-top:4px;padding:12px 40px;
  width:100%;max-width:340px;
  background:linear-gradient(135deg,#3a7bd5,#2563a8);
  color:#fff;border:none;border-radius:14px;
  font-size:1.2rem;font-weight:700;cursor:pointer;transition:transform .15s;
}
.start-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px rgba(58,123,213,.35)}
.start-btn:disabled{opacity:.5;cursor:not-allowed}

/* ── Status message (name validation, upload outcome) ── */
.status-message{
  font-size:.9rem;text-align:center;
  padding:8px 14px;border-radius:10px;
  max-width:340px;
}
.status-message-error{
  background:rgba(239,68,68,.15);
  color:#fca5a5;
  border:1px solid rgba(239,68,68,.3);
}
.status-message-success{
  background:rgba(34,197,94,.15);
  color:#86efac;
  border:1px solid rgba(34,197,94,.3);
}

.hidden{display:none!important}

/* ── Mobile responsive (portrait) ───────────────────────────────────────── */
@media (max-width:480px){
  body{
    /* flex-start + padding avoids the flex-center scroll-clipping bug on mobile */
    justify-content:flex-start;
    padding:16px 0 24px;
    /* background-attachment:fixed is broken on iOS Safari */
    background-attachment:scroll;
  }
  .container{padding:14px;gap:18px}
  .start-screen{gap:8px}
  .start-screen h1{font-size:1.55rem}
  .start-screen p{font-size:.88rem}
  /* Compact nugget legend */
  .nugget-legend{gap:10px}
  .nugget-legend .nugget-sm{width:36px;height:32px;font-size:.68rem}
  .nugget-legend .nugget-md{width:54px;height:50px;font-size:.88rem}
  .nugget-legend .nugget-lg{width:76px;height:70px;font-size:1.05rem}
  /* Stretch interactive elements to full width */
  .leaderboard,.name-input,.start-btn{max-width:100%}
}