.vch-app{--acc:#8ea272;--acc2:#4a5c36;--ink:#0a0a14;--vch-line:rgba(255,255,255,.14);--vch-muted:rgba(255,255,255,.72);--tempo:#d8a86e;--tempo-bg:rgba(216,168,110,.11);--heat:linear-gradient(90deg,#667eea,#c9a6fb);--tempo-bar:linear-gradient(90deg,#ecd3ae,#d8a86e);max-width:1100px;margin:auto;padding:24px 0 56px;color:#f8fafc;font-family:var(--font-body,"DM Sans",sans-serif)}
.vch-app [hidden]{display:none!important}
.vch-app *,.vch-app *::before,.vch-app *::after{box-sizing:border-box}
.vch-app :focus-visible{outline:3px solid #fff;outline-offset:3px}
.vch-back{color:#b6c79a;font-weight:700;text-decoration:underline;text-underline-offset:3px}
.vch-game{position:relative;margin-top:20px;border:1px solid var(--vch-line);border-radius:28px;padding:clamp(16px,3vw,26px);padding-bottom:88px;background:linear-gradient(160deg,color-mix(in srgb,var(--acc) 3%,#0a0a14),rgba(10,10,20,.92));box-shadow:0 30px 80px rgba(0,0,0,.4)}
.vch-top{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.vch-titlewrap{display:flex;gap:14px;align-items:center}
.vch-gicon{display:grid;place-items:center;width:54px;height:54px;border-radius:17px;font-size:30px;flex:none;background:linear-gradient(135deg,color-mix(in srgb,var(--acc) 16%,transparent),color-mix(in srgb,var(--acc2) 14%,transparent));border:1px solid color-mix(in srgb,var(--acc) 28%,transparent)}
.vch-solo{margin:0 0 2px;font:800 .75rem var(--font-display,Syne,sans-serif);letter-spacing:.16em;color:var(--acc)}
.vch-app h1{margin:0;font:800 1.75rem/1.1 var(--font-display,Syne,sans-serif);color:#fff}
.vch-hud{display:flex;gap:8px;flex-wrap:wrap}
.vch-pill{border:1px solid var(--vch-line);background:rgba(0,0,0,.28);border-radius:999px;padding:7px 14px;font:700 .82rem var(--font-display,Syne,sans-serif);white-space:nowrap}
.vch-pill b{font-size:.95rem;font-variant-numeric:tabular-nums}
.vch-pips{display:inline-flex;gap:5px;vertical-align:middle;margin-left:8px}
.vch-pips i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.2)}
.vch-pips i.on{background:var(--acc)}.vch-pips i.now{outline:2px solid var(--acc);outline-offset:2px}
.vch-challenge{margin-top:18px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:center;padding:18px 22px;border-radius:30px;border:1.5px solid color-mix(in srgb,var(--acc) 26%,transparent);background:linear-gradient(120deg,color-mix(in srgb,var(--acc) 8%,#0a0a14),color-mix(in srgb,var(--acc2) 8%,#0a0a14));box-shadow:0 0 0 1px rgba(0,0,0,.4) inset,0 14px 36px rgba(0,0,0,.28)}
.vch-label{margin:0 0 4px;font:800 .75rem var(--font-display,Syne,sans-serif);letter-spacing:.14em;color:var(--acc)}
.vch-chtitle{font:800 1.75rem/1.15 var(--font-display,Syne,sans-serif);margin:0 0 12px;color:#fff}
.vch-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.vch-mchip{display:inline-flex;gap:7px;align-items:center;padding:6px 12px;border-radius:999px;background:rgba(0,0,0,.4);border:1px solid color-mix(in srgb,var(--acc) 22%,transparent);font-size:.875rem;font-weight:700}
.vch-mchip small{font:800 .66rem var(--font-display,Syne,sans-serif);letter-spacing:.12em;color:var(--acc)}
.vch-heat{width:34px;height:6px;border-radius:4px;background:var(--heat)}.vch-tempobar{width:34px;height:6px;border-radius:4px;background:var(--tempo-bar)}
.vch-app button.vch-why{width:32px;height:32px;padding:0;border-radius:50%;border:1px solid color-mix(in srgb,var(--acc) 60%,transparent);background:rgba(0,0,0,.35);color:#fff;font-weight:800;cursor:pointer}
.vch-explain{margin:10px 0 0;font-size:.875rem;color:rgba(255,255,255,.85)}
.vch-shape{text-align:center}.vch-shape svg{display:block;width:190px;height:90px;margin:0 auto}.vch-shapecap{margin:6px 0 0;color:var(--vch-muted);font-size:.75rem}
.vch-howto{margin:14px 2px 0;line-height:1.6;max-width:70ch;color:var(--vch-muted);font-size:.85rem}
.vch-note{color:var(--vch-muted);margin:18px 2px}
.vch-board{display:grid;grid-template-columns:minmax(250px,.85fr) 1.5fr;gap:24px;margin-top:18px;align-items:start}
.vch-h{display:flex;justify-content:space-between;align-items:baseline;margin:0 0 10px;font:800 .75rem var(--font-display,Syne,sans-serif);letter-spacing:.14em;color:var(--vch-muted)}
.vch-tray{position:sticky;top:12px;min-height:120px;padding:14px;border-radius:22px;border:1.5px solid var(--vch-line);background:rgba(255,255,255,.04);display:grid;gap:10px;transition:border-color .2s,background .2s}
.vch-tray.is-over{border-color:color-mix(in srgb,var(--acc) 60%,transparent);background:color-mix(in srgb,var(--acc) 7%,transparent)}
.vch-empty{color:var(--vch-muted);font-size:.875rem;text-align:center;padding:14px 4px;margin:0}
.vch-card{position:relative;border-left:3px solid var(--ec,rgba(255,255,255,.2));display:grid;grid-template-columns:18px 1fr;gap:10px;align-items:center;padding:10px 12px;border-radius:16px;background:linear-gradient(135deg,#2a2a42,#1a1a2c);border:1px solid rgba(255,255,255,.2);border-left:3px solid var(--ec,rgba(255,255,255,.2));box-shadow:0 10px 22px rgba(0,0,0,.38);cursor:grab;touch-action:none;user-select:none;-webkit-user-select:none;min-width:0}
.vch-card:hover{border-color:color-mix(in srgb,var(--acc) 70%,transparent);border-left-color:var(--ec)}
.vch-grip{color:var(--vch-muted);font-size:1rem;letter-spacing:-3px;text-align:center}
.vch-ct{font:700 1rem var(--font-display,Syne,sans-serif);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#fff}
.vch-ca{font-size:.8rem;color:var(--vch-muted);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vch-metrics{display:flex;flex-wrap:wrap;gap:6px}
.vch-m{display:inline-flex;align-items:center;gap:6px;padding:2px 9px;border-radius:9px;background:rgba(255,255,255,.09);font-size:.78rem;font-weight:700;white-space:nowrap}
.vch-bar{width:38px;height:6px;border-radius:3px;background:rgba(255,255,255,.16);overflow:hidden}.vch-bar i{display:block;height:100%;border-radius:3px}.vch-dot{width:9px;height:9px;border-radius:50%;flex:none}.vch-m.vch-t{color:var(--tempo);background:var(--tempo-bg)}
.vch-card.is-ghost{opacity:.25;border-style:dashed}
.vch-card.is-dragging{position:fixed;left:0;top:0;z-index:99999;pointer-events:none;cursor:grabbing;box-shadow:0 26px 50px rgba(0,0,0,.6),0 0 0 2px var(--acc);transform-origin:30% 30%}
.vch-card.is-locked{cursor:default;touch-action:auto}.vch-card.is-locked .vch-grip{visibility:hidden}
.vch-group+.vch-group{margin-top:22px}
.vch-glabel{display:flex;justify-content:space-between;gap:10px;align-items:baseline;margin:0 0 10px}
.vch-glabel b{font:800 .95rem var(--font-display,Syne,sans-serif);letter-spacing:.06em;padding:2px 12px;border-radius:999px;color:var(--gc);border:1.5px solid color-mix(in srgb,var(--gc) 75%,transparent)}
.vch-glabel span{color:var(--vch-muted);font-size:.8rem}.vch-glabel b.solid{background:var(--gc);color:#12121f}.vch-glabel b span{color:inherit;font-size:.7rem;letter-spacing:-1px}
.vch-flow{display:flex;justify-content:space-between;align-items:center;color:var(--acc);font:800 .7rem var(--font-display,Syne,sans-serif);letter-spacing:.12em;margin:0 0 6px 4px}
.vch-slots{position:relative}
.vch-seg{position:absolute;left:19px;top:40px;bottom:-16px;width:2px;border-radius:2px;background:linear-gradient(180deg,color-mix(in srgb,var(--sc) 55%,transparent),color-mix(in srgb,var(--sn) 55%,transparent))}
.vch-slot{position:relative;display:grid;grid-template-columns:42px 1fr;gap:12px;margin-bottom:16px}
.vch-slot:last-child{margin-bottom:0}
.vch-slot:not(:last-child)::after{content:"▼";position:absolute;left:12px;bottom:-15px;font-size:.75rem;line-height:1;color:color-mix(in srgb,var(--sn) 70%,transparent)}
.vch-num{position:relative;z-index:1;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#12121f;border:2px solid color-mix(in srgb,var(--sc) 65%,transparent);font:800 .95rem var(--font-display,Syne,sans-serif);color:var(--sc)}
.vch-slot.is-filled .vch-num{background:color-mix(in srgb,var(--sc) 78%,#12121f);color:#1a1207;border-color:transparent}
.vch-drop{min-height:78px;border-radius:18px;border:2px dashed rgba(255,255,255,.26);background:rgba(255,255,255,.03);display:flex;align-items:center;gap:14px;padding:8px 14px;transition:border-color .15s,background .15s,transform .15s,box-shadow .15s}
.vch-role{display:block;font:800 .95rem var(--font-display,Syne,sans-serif);color:rgba(255,255,255,.94)}
.vch-rule{display:block;font-size:.8rem;color:var(--vch-muted)}
.vch-hint{margin-left:auto;font-size:.8rem;color:rgba(255,255,255,.55);white-space:nowrap}
.vch-meter{display:inline-flex;gap:3px;align-items:flex-end;height:20px;margin-left:8px}
.vch-meter i{width:6px;border-radius:2px;background:rgba(255,255,255,.16)}.vch-meter i.f{background:var(--c)}
.vch-drop.is-over{border-style:solid;border-color:rgba(255,255,255,.85);background:color-mix(in srgb,var(--acc) 12%,transparent);transform:scale(1.02);box-shadow:0 0 0 5px color-mix(in srgb,var(--acc) 14%,transparent)}
.vch-drop.is-filled{border-style:solid;border-color:color-mix(in srgb,var(--acc) 55%,transparent);background:linear-gradient(120deg,color-mix(in srgb,var(--acc) 9%,transparent),rgba(255,255,255,.04));padding:8px}
.vch-drop.is-filled .vch-card{flex:1;box-shadow:none;background:linear-gradient(135deg,#30304c,#1e1e34)}
.vch-slotinfo{display:grid;min-width:74px}
.vch-drop.is-locked{border-color:var(--acc);box-shadow:0 0 14px color-mix(in srgb,var(--acc) 16%,transparent)}
.vch-stamp{display:none;font:800 .68rem var(--font-display,Syne,sans-serif);letter-spacing:.1em;padding:4px 10px;border-radius:999px;background:var(--acc);color:var(--ink);white-space:nowrap}
.vch-drop.is-locked .vch-stamp,.vch-drop.is-missed .vch-stamp{display:inline-block}
.vch-drop.is-missed{border-color:#fb7185;box-shadow:0 0 18px rgba(251,113,133,.35)}.vch-drop.is-missed .vch-stamp{background:#fb7185}
.vch-drop.is-bad{border-color:#fb7185;background:rgba(251,113,133,.14);animation:vchShake .5s}
@keyframes vchShake{20%,60%{transform:translateX(-7px)}40%,80%{transform:translateX(7px)}}
.vch-app button.vch-ret{width:32px;height:32px;padding:0;border-radius:50%;border:1px solid var(--vch-line);background:rgba(0,0,0,.3);color:#fff;font-size:.875rem;flex:none;cursor:pointer}
.vch-drop.is-locked .vch-ret,.vch-drop.is-missed .vch-ret{display:none}
.vch-dock{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:22px;padding:14px 16px;border-radius:22px;border:1px solid var(--vch-line);background:rgba(0,0,0,.25)}
.vch-prog{min-width:150px}.vch-prog b{font:800 1.1rem var(--font-display,Syne,sans-serif)}
.vch-progtrack{height:6px;border-radius:3px;background:rgba(255,255,255,.14);margin-top:6px;overflow:hidden}.vch-progtrack i{display:block;height:100%;width:0;background:var(--acc);transition:width .3s}
.vch-status{flex:1;min-width:200px;margin:0;color:rgba(255,255,255,.9);font-size:.92rem}
.vch-app button.vch-go{min-height:52px;padding:12px 28px;border:0;border-radius:999px;font:800 1rem var(--font-display,Syne,sans-serif);color:var(--ink);background:var(--acc);box-shadow:0 6px 18px rgba(0,0,0,.35);cursor:pointer}
.vch-app button.vch-go:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}
.vch-app a.vch-quiet{display:inline-flex;align-items:center;min-height:44px;padding:8px 18px;margin-left:8px;border-radius:999px;border:1px solid var(--vch-line);background:rgba(255,255,255,.05);color:#fff;font:700 .875rem var(--font-display,Syne,sans-serif);text-decoration:none}
.vch-result{margin-top:18px;padding:20px;border-radius:24px;border:1.5px solid color-mix(in srgb,var(--acc) 30%,transparent);background:linear-gradient(135deg,color-mix(in srgb,var(--acc) 7%,transparent),rgba(255,255,255,.03));animation:vchRise .4s both}
@keyframes vchRise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.vch-result h2{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;font:800 1.35rem var(--font-display,Syne,sans-serif);margin:0 0 10px;color:#fff}
.vch-pts{margin-left:auto;font:800 1.9rem var(--font-display,Syne,sans-serif);color:var(--acc)}
.vch-why-list{list-style:none;margin:0 0 14px;padding:0;display:grid;gap:8px}
.vch-why-list li{display:grid;grid-template-columns:34px 1fr auto;gap:10px;align-items:center;padding:8px 12px;border-radius:14px;background:rgba(0,0,0,.25);font-size:.875rem}
.vch-why-list small{color:var(--vch-muted)}
.vch-k{font:800 .75rem var(--font-display,Syne,sans-serif);color:var(--ink);background:var(--acc);border-radius:50%;width:26px;height:26px;display:grid;place-items:center}
.vch-why-list li.x .vch-k{background:#fb7185}.vch-why-list li.r .vch-k{background:#fbbf24}
.vch-p{font:800 .8rem var(--font-display,Syne,sans-serif);color:var(--vch-muted)}
.vch-recap{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0}
.vch-recap article{padding:14px;border-radius:18px;border:1px solid var(--vch-line);background:rgba(0,0,0,.22)}
.vch-recap h3{margin:0 0 4px;font:800 1rem var(--font-display,Syne,sans-serif);color:#fff}.vch-recap p{margin:0;color:var(--vch-muted)}
.vch-total{font:800 2.75rem var(--font-display,Syne,sans-serif);margin:0}.vch-total span{font:400 1rem var(--font-body,"DM Sans",sans-serif)}
.vch-sr{position:absolute;left:-9999px}
@media(max-width:1000px){.vch-challenge{grid-template-columns:1fr;gap:14px}.vch-shape{padding-top:12px;border-top:1px solid color-mix(in srgb,var(--acc) 18%,transparent)}.vch-shape svg{width:min(260px,80%);height:auto}}
@media(max-width:820px){
  .vch-game{padding:14px 14px 88px;border-radius:22px}
  .vch-app h1{font-size:1.4rem}.vch-gicon{width:44px;height:44px;font-size:25px;border-radius:14px}
  .vch-challenge{grid-template-columns:1fr;padding:16px 18px;border-radius:24px;gap:14px}.vch-shape{padding-top:12px;border-top:1px solid color-mix(in srgb,var(--acc) 18%,transparent)}.vch-shape svg{width:min(260px,80%);height:auto}
  .vch-chtitle{font-size:1.35rem;margin-bottom:10px}.vch-mchip{font-size:.8rem;padding:5px 10px}
  .vch-board{grid-template-columns:1fr;gap:14px}.vch-tray{position:static}
  .vch-card{padding:8px 10px}.vch-drop{min-height:70px}
  .vch-recap{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){.vch-app *,.vch-app *::before,.vch-app *::after{animation:none!important;transition:none!important}}
.vch-back, .vch-back:hover, .vch-back:focus { text-decoration: none !important; }
.vch-intro { max-width: 640px; margin: 0 auto; }
.vch-intro-panel { margin: 0 0 16px; padding: clamp(18px, 4vw, 28px); border: 1px solid rgba(255, 255, 255, .14); border-radius: 22px; background: radial-gradient(520px 220px at 10% -20%, rgba(142, 162, 114, .24), transparent 70%), rgba(255, 255, 255, .06); color: #f8fafc; text-align: center; }
.vch-intro-panel .vch-kicker { margin: 0 0 8px; color: #c9d8b2; font: 800 14px "DM Sans", sans-serif; letter-spacing: .08em; text-transform: uppercase; }
.vch-intro-panel h2 { margin: 0 0 10px; color: #fff; font: 800 clamp(26px, 5vw, 36px)/1.15 "DM Sans", sans-serif; }
.vch-intro-panel .vch-lead { margin: 0; color: rgba(255, 255, 255, .78); font: 500 17px/1.5 "DM Sans", sans-serif; }
.vch-intro-facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 0 0 16px; }
.vch-intro-fact { padding: 12px 10px; border: 1px solid rgba(255, 255, 255, .14); border-top: 4px solid #8ea272; border-radius: 16px; background: rgba(255, 255, 255, .06); color: #fff; text-align: center; }
.vch-intro-fact strong { display: block; font: 800 20px "DM Sans", sans-serif; }
.vch-intro-fact span { display: block; margin-top: 2px; color: rgba(255, 255, 255, .78); font: 500 14px "DM Sans", sans-serif; }
.vch-intro-note { margin: 0 0 18px; color: rgba(255, 255, 255, .78); font: 500 16px/1.5 "DM Sans", sans-serif; text-align: center; }
.vch-intro-start { display: flex; width: 100%; min-height: 48px; align-items: center; justify-content: center; padding: 12px 26px; border: 0; border-radius: 999px; background: linear-gradient(135deg, #8ea272, #4a5c36); color: #fff; font: 700 15px "DM Sans", sans-serif; cursor: pointer; }
.vch-intro-start:focus-visible { outline: 3px solid #fff; outline-offset: 3px; }
/* Less congested: more room, bigger small text */
.vch-board{gap:36px;margin-top:24px}
.vch-card{padding:14px 16px;gap:12px}
.vch-slot{margin-bottom:20px;gap:14px}
.vch-challenge{padding:22px 26px;gap:22px}
.vch-howto{margin:18px 2px 0;font-size:1rem;line-height:1.65}
.vch-shapecap,.vch-ca,.vch-m,.vch-glabel span,.vch-glabel b span,.vch-slot:not(:last-child)::after,.vch-rule,.vch-hint,.vch-mchip{font-size:14px}

.vch-mchip small,.vch-h span,.vch-flow span{font-size:14px;letter-spacing:.06em}
.vch-app svg text{font-size:13px}
@media(max-width:640px){.vch-board{grid-template-columns:minmax(0,1fr)}.vch-h{flex-wrap:wrap;gap:2px 12px}.vch-tray,.vch-card{min-width:0}}
@media(min-width:641px) and (max-width:820px){.vch-board{grid-template-columns:minmax(220px,.8fr) minmax(0,1.4fr);gap:24px}.vch-tray,.vch-card{min-width:0}}
@media(max-width:480px){.vch-slot{grid-template-columns:34px minmax(0,1fr);gap:10px}.vch-drop{min-width:0;flex-wrap:wrap;gap:6px}.vch-drop>*{min-width:0}}