:root{
  --bg1:#eafcff;
  --bg2:#f7fffd;
  --ink:#16343d;
  --muted:#5d7a81;
  --primary:#0f766e;
  --primary2:#14b8a6;
  --blue:#0284c7;
  --blue2:#38bdf8;
  --gold:#f59e0b;
  --red:#ef4444;
  --card:rgba(255,255,255,.92);
  --shadow:0 18px 40px rgba(13,148,136,.12);
  --radius:24px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:Inter,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(circle at 10% 10%, rgba(56,189,248,.18), transparent 20%),
    radial-gradient(circle at 90% 15%, rgba(20,184,166,.16), transparent 18%),
    linear-gradient(180deg,var(--bg1),var(--bg2));
}
.app-shell{max-width:1380px;margin:0 auto;padding:18px}
.card{
  background:var(--card);
  border:1px solid rgba(20,184,166,.14);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter:blur(10px);
}
.hero{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:16px;
  padding:22px;
}
.brand-pill{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 14px;
  border-radius:999px;
  background:rgba(20,184,166,.1);
  color:var(--primary);
  font-size:13px;
  font-weight:900;
  margin-bottom:12px;
}
.brand-mark{
  width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;
  background:linear-gradient(180deg,var(--primary2),var(--primary));
  color:#fff;
}
.hero h1{margin:0 0 10px;font-size:clamp(30px,4vw,48px);line-height:1.05}
.hero p{margin:0;color:var(--muted);line-height:1.65;font-size:17px}
.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat-card{
  padding:16px;
  border-radius:20px;
  background:linear-gradient(180deg,#fff,#f6fffe);
  border:1px solid rgba(20,184,166,.15);
  text-align:center;
}
.stat-label{font-size:12px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);font-weight:800;margin-bottom:8px}
.stat-value{font-size:clamp(22px,3vw,34px);font-weight:900;color:var(--primary)}

.progress-panel{padding:14px 18px;margin:14px 0}
.progress-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.progress-bar{height:14px;background:#dff7f4;border-radius:999px;overflow:hidden}
.progress-fill{
  width:11.11%;height:100%;
  background:linear-gradient(90deg,var(--blue2),var(--primary2));
  border-radius:999px;
  transition:width .35s ease;
}

.layout{display:grid;grid-template-columns:320px 1fr 320px;gap:16px}
.left-panel,.right-panel,.center-panel{padding:18px}
.left-panel h2,.right-panel h2{margin:0 0 12px}
.tip-box,.box,.measure-box,.feedback-box{
  padding:14px 16px;
  border-radius:18px;
  background:rgba(255,255,255,.96);
  border:1px solid rgba(20,184,166,.14);
  box-shadow:0 10px 20px rgba(20,184,166,.07);
}
.tip-box{
  background:linear-gradient(180deg,rgba(236,254,255,.98),rgba(248,255,255,.98));
  color:#155e75;
  line-height:1.6;
  margin-bottom:12px;
}
.field-label{display:block;margin:10px 0 8px;font-size:14px;font-weight:900;color:var(--muted)}
.text-input{
  width:100%;
  padding:14px;
  border-radius:16px;
  border:2px solid rgba(20,184,166,.18);
  background:#fff;
  font-size:16px;
  font-weight:800;
  color:var(--ink);
  outline:none;
}
.text-input:focus{border-color:var(--primary2);box-shadow:0 0 0 4px rgba(20,184,166,.08)}
.full{width:100%}
.tabs-box{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:14px 0 10px}
.tab-btn{
  padding:11px 10px;
  border:none;
  border-radius:14px;
  font-weight:900;
  background:#edfdfb;
  color:var(--primary);
  cursor:pointer;
}
.tab-btn.active{background:linear-gradient(180deg,var(--primary2),var(--primary));color:#fff}
.object-list{display:grid;gap:12px}
.object-card{
  display:grid;
  grid-template-columns:62px 1fr;
  gap:12px;
  align-items:center;
  padding:12px;
  border-radius:20px;
  background:linear-gradient(180deg,#fff,#f8fffe);
  border:2px solid rgba(20,184,166,.12);
}
.object-card.active{border-color:var(--gold);box-shadow:0 12px 22px rgba(245,158,11,.16)}
.object-icon{
  width:62px;height:62px;border-radius:18px;
  display:grid;place-items:center;
  font-size:34px;
  background:linear-gradient(180deg,#ecfeff,#d8fbff);
}
.object-name{font-weight:900;font-size:17px;margin-bottom:4px}
.object-meta{color:var(--muted);font-size:14px;line-height:1.5}
.object-actions{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:8px}

.center-panel{
  background:
    radial-gradient(circle at 12% 8%, rgba(255,255,255,.96), transparent 26%),
    radial-gradient(circle at 88% 8%, rgba(56,189,248,.14), transparent 20%),
    linear-gradient(180deg,#ffffff,#effdfd);
}
.mission-row{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;margin-bottom:12px}
.mission-box{
  padding:12px 14px;border-radius:18px;
  background:rgba(245,158,11,.12);
  border:1px solid rgba(245,158,11,.22);
  color:#92400e;font-weight:800;line-height:1.55;
}
.mode-pill{
  padding:10px 14px;border-radius:999px;
  font-weight:900;color:var(--primary);
  background:rgba(20,184,166,.12);
}
.lab-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:16px}
.lab-stage{
  position:relative;
  min-height:620px;
  overflow:hidden;
  border-radius:28px;
  background:linear-gradient(180deg,rgba(207,250,254,.65),rgba(240,253,250,.85));
  border:1px solid rgba(125,211,252,.35);
  box-shadow:inset 0 -30px 60px rgba(125,211,252,.12);
}
.lab-bg-grid{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(255,255,255,.16) 1px,transparent 1px),
    linear-gradient(180deg,rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:36px 36px;
  opacity:.22;
}
.shelf{
  position:absolute;left:0;right:0;bottom:0;height:155px;
  background:
    linear-gradient(180deg, rgba(14,165,233,.06), rgba(14,165,233,.12)),
    linear-gradient(180deg,#d8b48a,#b88757);
}
.glassware{
  position:absolute;bottom:130px;width:56px;border-radius:14px 14px 10px 10px;
  background:linear-gradient(180deg,rgba(255,255,255,.95),rgba(186,230,253,.65));
  border:2px solid rgba(14,116,144,.3);
}
.glassware-a{right:32px;height:78px}
.glassware-b{right:98px;height:96px}
.glassware-c{right:166px;height:68px}

.beaker-wrap{
  position:absolute;left:50%;bottom:56px;transform:translateX(-50%);
  width:min(92%,380px);display:grid;justify-items:center;z-index:2;
}
.beaker{
  position:relative;width:100%;height:450px;
  border-radius:28px 28px 42px 42px;
  border:4px solid rgba(14,116,144,.62);
  background:linear-gradient(180deg,rgba(255,255,255,.55),rgba(240,249,255,.32));
  overflow:hidden;
  box-shadow:inset 0 -20px 35px rgba(125,211,252,.12),0 20px 40px rgba(8,47,73,.10);
}
.beaker-label{
  position:absolute;left:14px;padding:7px 12px;border-radius:999px;
  background:rgba(255,255,255,.84);font-size:13px;font-weight:900;color:#0c4a6e;z-index:4;
}
.beaker-label.top{top:14px}
.beaker-label.second{top:52px;background:rgba(236,254,255,.88);color:var(--primary)}
.water{
  position:absolute;left:0;right:0;bottom:0;height:38%;
  background:linear-gradient(180deg,rgba(125,211,252,.95),rgba(14,165,233,.96));
  transition:height .8s cubic-bezier(.2,.85,.25,1);
}
.water::before{
  content:"";position:absolute;left:0;right:0;top:-16px;height:26px;
  background:
    radial-gradient(circle at 12px 16px, rgba(255,255,255,.9) 0 10px, transparent 11px),
    radial-gradient(circle at 44px 12px, rgba(255,255,255,.65) 0 12px, transparent 13px),
    radial-gradient(circle at 82px 15px, rgba(255,255,255,.85) 0 11px, transparent 12px),
    radial-gradient(circle at 116px 11px, rgba(255,255,255,.72) 0 12px, transparent 13px);
  background-size:130px 28px;
  animation:wave 2.2s linear infinite;
}
@keyframes wave{from{transform:translateX(0)}to{transform:translateX(130px)}}
.floating-object{
  position:absolute;left:50%;transform:translateX(-50%);
  bottom:64px;width:124px;height:124px;
  display:grid;place-items:center;font-size:68px;
  z-index:4;opacity:0;
  transition:bottom .8s cubic-bezier(.2,.85,.25,1),opacity .35s ease;
}
.object-shadow{
  position:absolute;left:50%;bottom:34px;transform:translateX(-50%);
  width:120px;height:20px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,0,0,.18),rgba(0,0,0,0));
  z-index:1;opacity:.45;
}
.splash{
  position:absolute;left:50%;bottom:210px;width:210px;height:210px;
  transform:translateX(-50%) scale(.2);opacity:0;z-index:4;pointer-events:none;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.95) 0 18%,rgba(56,189,248,.56) 26%,rgba(56,189,248,0) 66%);
}
.splash.show{animation:splash .75s ease-out}
@keyframes splash{
  0%{opacity:0;transform:translateX(-50%) scale(.18)}
  18%{opacity:1}
  100%{opacity:0;transform:translateX(-50%) scale(1.45)}
}

.control-panel{display:grid;gap:12px;align-content:start}
.measure-box{color:#155e75;line-height:1.7}
.btn{
  border:none;border-radius:16px;cursor:pointer;
  padding:14px 16px;font-size:15px;font-weight:900;
  box-shadow:0 10px 20px rgba(20,184,166,.12);
  transition:.16s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-row{display:grid;gap:10px}
.btn-row.two{grid-template-columns:1fr 1fr}
.btn-row.three{grid-template-columns:1fr 1fr 1fr;margin-top:10px}
.btn-primary{background:linear-gradient(180deg,var(--primary2),var(--primary));color:#fff}
.btn-secondary{background:linear-gradient(180deg,#fff7ed,#ffedd5);color:#9a3412}
.btn-blue{background:linear-gradient(180deg,#38bdf8,#0284c7);color:#fff}
.btn-danger{background:linear-gradient(180deg,#fca5a5,#ef4444);color:#fff}
.btn-gold{background:linear-gradient(180deg,#f59e0b,#d97706);color:#fff}
.feedback-box{min-height:140px;line-height:1.65;font-size:15px}
.feedback-box.good{border-color:rgba(20,184,166,.32);background:linear-gradient(180deg,#f0fdfa,#fff)}
.feedback-box.bad{border-color:rgba(239,68,68,.26);background:linear-gradient(180deg,#fff5f5,#fff)}
.footer-note{
  margin-top:14px;padding:12px 14px;border-radius:18px;
  background:rgba(20,184,166,.08);border:1px dashed rgba(20,184,166,.20);
  color:#155e75;font-size:14px;line-height:1.6;
}
.history-list{display:grid;gap:10px;max-height:360px;overflow:auto;margin-top:10px}
.muted{display:block;color:var(--muted);font-size:13px;line-height:1.55;margin-top:6px}
audio{width:100%;margin-top:12px}

.toast{
  position:fixed;right:18px;top:18px;z-index:9998;
  min-width:260px;max-width:380px;
  padding:14px 16px;border-radius:18px;
  color:#fff;opacity:0;transform:translateY(-10px);
  pointer-events:none;transition:.22s ease;
  font-weight:800;box-shadow:0 26px 60px rgba(8,47,73,.18)
}
.toast.show{opacity:1;transform:translateY(0)}
.toast.good{background:linear-gradient(180deg,#14b8a6,#0f766e)}
.toast.bad{background:linear-gradient(180deg,#f87171,#dc2626)}
.toast.info{background:linear-gradient(180deg,#38bdf8,#0284c7)}

.modal-wrap{
  position:fixed;inset:0;display:none;place-items:center;
  background:rgba(8,47,73,.36);padding:14px;z-index:9999
}
.modal-wrap.show{display:grid}
.modal-card{
  width:min(620px,96vw);
  background:linear-gradient(180deg,rgba(255,255,255,.98),rgba(244,255,252,.98));
  border-radius:30px;
  box-shadow:0 30px 90px rgba(0,0,0,.22);
  padding:24px;text-align:center
}
.modal-stars{font-size:44px;margin-bottom:8px}
.modal-card h3{margin:0 0 8px;font-size:34px;color:var(--primary)}
.modal-card p{margin:0 0 14px;line-height:1.65;color:var(--muted)}
.top-gap{margin-top:12px}

#confettiCanvas{
  position:fixed;inset:0;pointer-events:none;z-index:9997
}

.shake{animation:shake .35s linear}
@keyframes shake{
  0%,100%{transform:translateX(0)}
  20%{transform:translateX(-4px)}
  40%{transform:translateX(4px)}
  60%{transform:translateX(-3px)}
  80%{transform:translateX(3px)}
}

@media (max-width:1180px){
  .layout{grid-template-columns:1fr}
  .hero,.lab-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:760px){
  .app-shell{padding:12px}
  .stats-grid,.btn-row.two,.btn-row.three,.tabs-box{grid-template-columns:1fr}
  .object-card{grid-template-columns:56px 1fr}
  .object-icon{width:56px;height:56px;font-size:30px}
  .beaker-wrap{width:min(96%,320px)}
  .beaker{height:390px}
  .floating-object{width:104px;height:104px;font-size:58px}
  .hero h1{font-size:30px}
}