:root{
  --bg:#2b1d14;
  --panel:#3a2a1c;
  --panel2:#4a3626;
  --accent:#ffb703;
  --accent2:#fb8500;
  --danger:#e63946;
  --good:#8ac926;
  --text:#fff3e0;
  --muted:#c9a98a;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;background:#1a1108;}
body{
  font-family:"Hiragino Maru Gothic ProN","Yu Gothic",sans-serif;
  color:var(--text);
  display:flex;
  justify-content:center;
}
#app{width:100%;max-width:480px;min-height:100vh;background:var(--bg);position:relative;overflow-x:hidden;}

.screen{padding:14px;display:none;flex-direction:column;gap:12px;min-height:100vh;}
.screen.active{display:flex;}
h1,h2,h3{margin:0;}

/* ---- title ---- */
.title-screen{align-items:center;justify-content:center;text-align:center;gap:20px;}
.title-screen h1{font-size:28px;color:var(--accent);}
.mode-btn{
  width:80%;padding:16px;border-radius:14px;border:none;
  background:var(--panel2);color:var(--text);font-size:17px;font-weight:bold;
  cursor:pointer;box-shadow:0 4px 0 #2a1c10;
}
.mode-btn:active{transform:translateY(2px);box-shadow:0 2px 0 #2a1c10;}
.mode-btn small{display:block;font-weight:normal;color:var(--muted);margin-top:4px;}

/* ---- segment ---- */
.segment-screen{justify-content:center;min-height:100vh;}
.segment-card{
  background:var(--panel);border-radius:16px;padding:20px;text-align:center;
  border:2px solid var(--accent);
}
.segment-card h2{color:var(--accent);font-size:22px;}
.segment-card h3{font-size:20px;margin:8px 0;}
.segment-card p{color:var(--muted);font-size:14px;line-height:1.6;}

/* ---- build ---- */
.topbar{
  display:flex;justify-content:space-between;align-items:center;
  background:var(--panel);border-radius:10px;padding:8px 12px;font-size:12px;
}

.burger-stage{
  background:radial-gradient(circle at 50% 20%, #4a3626, #1a1108 80%);
  border-radius:16px;padding:10px;display:flex;justify-content:center;
  min-height:260px;
}
.burger-stage.shake{animation:shake .3s infinite;}
.burger-stage.collapse{animation:collapseFall .7s forwards;}
@keyframes shake{
  0%{transform:translate(0,0) rotate(0);}
  25%{transform:translate(-2px,1px) rotate(-1deg);}
  50%{transform:translate(2px,-1px) rotate(1deg);}
  75%{transform:translate(-1px,-1px) rotate(-0.5deg);}
  100%{transform:translate(0,0) rotate(0);}
}
@keyframes collapseFall{
  0%{transform:translateY(0) rotate(0);opacity:1;}
  100%{transform:translateY(40px) rotate(8deg);opacity:0.3;}
}

.score-panel{background:var(--panel);border-radius:10px;padding:10px 12px;}
.score-panel .big-score{font-size:26px;font-weight:bold;color:var(--accent);}
.combo-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px;}
.combo-tag{background:var(--accent2);color:#1a1108;font-size:11px;font-weight:bold;padding:3px 8px;border-radius:10px;}

.ingredient-panel{background:var(--panel);border-radius:10px;padding:10px;}
.ingredient-panel h3{font-size:13px;color:var(--muted);margin-bottom:6px;}
.category-tabs{display:flex;gap:6px;overflow-x:auto;margin-bottom:8px;}
.category-tab{
  flex:0 0 auto;background:var(--panel2);color:var(--muted);border:none;border-radius:8px;
  padding:6px 12px;font-size:12px;font-weight:bold;cursor:pointer;white-space:nowrap;
}
.category-tab.active{background:var(--accent);color:#1a1108;}
.ingredient-scroll{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;}
.ing-card{
  flex:0 0 auto;width:76px;background:var(--panel2);border-radius:10px;padding:6px;
  text-align:center;cursor:pointer;border:2px solid transparent;
}
.ing-card:active{border-color:var(--accent);}
.ing-card.disabled{opacity:0.35;pointer-events:none;}
.ing-swatch{width:100%;height:32px;border-radius:6px;margin-bottom:4px;}
.ing-name{font-size:10px;line-height:1.2;}

.stack-list{background:var(--panel);border-radius:10px;padding:10px;}
.stack-list h3{font-size:13px;color:var(--muted);margin-bottom:6px;display:flex;justify-content:space-between;align-items:center;}
.stack-row{display:flex;align-items:center;gap:6px;padding:4px 0;font-size:12px;border-bottom:1px solid #2a1c10;}
.stack-row .dot{width:12px;height:12px;border-radius:3px;flex:0 0 auto;}
.stack-row .nm{flex:1;}
.stack-row button{background:var(--panel2);color:var(--text);border:none;border-radius:5px;padding:3px 7px;font-size:11px;cursor:pointer;}
.stack-row button:disabled{opacity:0.3;}
.empty-hint{color:var(--muted);font-size:12px;}
.undo-btn{background:none;border:1px solid var(--muted);color:var(--muted);border-radius:6px;padding:2px 8px;font-size:11px;cursor:pointer;}
.undo-btn:disabled{opacity:0.3;}
.back-link{align-self:center;}

.price-panel{background:var(--panel);border-radius:10px;padding:12px;}
.price-panel input[type=range]{width:100%;}
.price-val{font-size:20px;font-weight:bold;color:var(--accent);text-align:center;}
.serve-btn{
  width:100%;padding:14px;border-radius:12px;border:none;font-size:17px;font-weight:bold;
  background:linear-gradient(180deg,var(--accent),var(--accent2));color:#1a1108;cursor:pointer;
  box-shadow:0 4px 0 #a15c00;
}
.serve-btn:active{transform:translateY(2px);box-shadow:0 2px 0 #a15c00;}
.serve-btn:disabled{opacity:0.4;}

/* ---- result ---- */
.result-screen{gap:14px;}
.result-screen .headline{text-align:center;}
.result-screen .headline .tp{font-size:34px;font-weight:bold;color:var(--accent);}
.collapsed-banner{background:var(--danger);color:#fff;text-align:center;padding:10px;border-radius:10px;font-weight:bold;}
.breakdown{background:var(--panel);border-radius:10px;padding:12px;font-size:13px;}
.breakdown-row{display:flex;justify-content:space-between;padding:3px 0;border-bottom:1px dashed #2a1c10;}
.breakdown-row.total{font-weight:bold;color:var(--accent);border-bottom:none;}
.rank-badge{
  font-size:40px;font-weight:bold;text-align:center;width:70px;height:70px;line-height:70px;
  border-radius:50%;margin:0 auto;background:var(--panel2);color:var(--accent);
}
.result-actions{display:flex;gap:10px;}
.result-actions button{flex:1;padding:12px;border-radius:10px;border:none;font-weight:bold;cursor:pointer;}
.btn-primary{background:var(--accent);color:#1a1108;}
.btn-secondary{background:var(--panel2);color:var(--text);}
.btn-primary:disabled, .btn-secondary:disabled{opacity:0.4;cursor:default;}

/* ---- ranking submit (result screen) ---- */
.ranking-submit{background:var(--panel);border-radius:10px;padding:12px;display:flex;flex-direction:column;gap:8px;}
.ranking-submit h3{font-size:13px;color:var(--muted);}
.ranking-submit input[type=text]{
  background:var(--panel2);border:1px solid var(--muted);border-radius:8px;padding:8px 10px;
  color:var(--text);font-size:14px;
}
.ranking-submit-actions{display:flex;gap:10px;}
.ranking-submit-actions button{flex:1;padding:10px;border-radius:8px;border:none;font-weight:bold;cursor:pointer;}
.ranking-submit-status{font-size:12px;color:var(--muted);min-height:14px;}

/* ---- ranking screen ---- */
.ranking-screen{align-items:stretch;}
.ranking-list{background:var(--panel);border-radius:10px;padding:10px;min-height:200px;}
.ranking-row{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:13px;border-bottom:1px solid #2a1c10;}
.ranking-row .rk-pos{width:22px;text-align:center;font-weight:bold;color:var(--accent);flex:0 0 auto;}
.ranking-row .rk-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.ranking-row .rk-point{font-weight:bold;color:var(--accent);}
.ranking-empty-hint{color:var(--muted);font-size:12px;text-align:center;padding:20px 0;}