:root{--bg:#faf9f5;--panel:#fff;--panel2:#f2efe6;--line:#3c321e24;--ink:#191917;--mute:#6b6a63;--accent:#c6613f;--blue:#3d5f86;--gold:#a87423;--r:12px;font-family:system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg);height:100%;color:var(--ink)}button{font:inherit;color:inherit;cursor:pointer}[hidden]{display:none!important}a{color:var(--blue)}.muted{color:var(--mute)}.app{grid-template:"top top top"56px"steps stage tree"minmax(0,1fr)"foot foot foot"38px/318px minmax(0,1fr) 270px;height:100dvh;display:grid}.top{border-bottom:1px solid var(--line);background:var(--panel);grid-area:top;justify-content:space-between;align-items:center;padding:0 16px;display:flex}.brand{align-items:center;gap:12px;display:flex}.brand h1{letter-spacing:.2px;font-size:16px}.brand p{color:var(--mute);font-size:12px}.top-actions{gap:8px;display:flex}.btn{border:1px solid var(--line);background:var(--panel2);border-radius:9px;padding:8px 14px;font-size:13px;transition:all .15s}.btn:hover{border-color:var(--blue)}.btn.ghost{background:0 0}.btn.small{padding:6px 10px;font-size:12px}.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:700}.btn[aria-pressed=true]{background:var(--blue);border-color:var(--blue);color:#fff}.steps,.tree{background:var(--panel);padding:14px 12px;position:relative;overflow:auto}.steps{border-right:1px solid var(--line);grid-area:steps}.tree{border-left:1px solid var(--line);grid-area:tree}h2{letter-spacing:1.6px;text-transform:uppercase;color:var(--mute);margin:2px 4px 12px;font-size:12px}.count{background:var(--panel2);letter-spacing:0;border-radius:99px;margin-left:6px;padding:1px 8px}.step-list{flex-direction:column;gap:6px;list-style:none;display:flex}.step{border-radius:var(--r);border:1px solid #0000;transition:all .15s}.step-btn{text-align:left;border-radius:var(--r);background:0 0;border:0;align-items:center;gap:12px;width:100%;padding:10px;display:flex}.step:hover{background:#3d5f8612}.num{background:var(--panel2);border:1px solid var(--line);width:28px;height:28px;color:var(--mute);border-radius:50%;flex:none;place-items:center;font-size:13px;font-weight:700;display:grid}.body b{font-size:14px;font-weight:600;line-height:1.25;display:block}.body small{color:var(--mute);font-size:12px}.step.done .num{border-color:var(--accent);color:var(--accent);background:#c6613f29}.step.active{background:var(--panel2);border-color:#3d5f8680}.step.active .num{background:var(--blue);border-color:var(--blue);color:#fff}.detail{color:#3f3e3a;padding:0 12px 12px 50px;font-size:13px;line-height:1.5;display:none}.step.active .detail{display:block}.detail dl{grid-template-columns:auto 1fr;gap:4px 10px;margin-top:8px;font-size:12px;display:grid}.detail dt{color:var(--mute)}.detail dd{color:var(--ink)}.stage{background:#e6e1d4;grid-area:stage;min-width:0;min-height:0;position:relative}.viewport{touch-action:none;position:absolute;inset:0}.viewport canvas{display:block}.hud-top{pointer-events:none;flex-wrap:wrap;gap:8px;display:flex;position:absolute;top:12px;left:12px}.chip{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border:1px solid var(--line);background:#ffffffe0;border-radius:99px;padding:6px 12px;font-size:12.5px}.chip.subtle{color:var(--mute)}.tooltip{pointer-events:none;border:1px solid var(--line);white-space:nowrap;z-index:5;background:#fffffff5;border-radius:8px;padding:5px 10px;font-size:12px;position:absolute}.hero{pointer-events:none;flex-direction:column;justify-content:center;align-items:center;gap:12px;display:flex;position:absolute;inset:0}.hero-btn{pointer-events:auto;background:var(--accent);color:#fff;border:0;border-radius:99px;align-items:center;gap:10px;padding:14px 24px;font-size:16px;font-weight:700;transition:transform .15s;display:inline-flex;box-shadow:0 10px 40px #c6613f59}.hero-btn:hover{transform:translateY(-2px)}.hero p{color:var(--mute);background:#ffffffbf;border-radius:99px;padding:4px 12px;font-size:13px}.dock{background:linear-gradient(#0000,#fffffff5 40%);padding:10px 14px 12px;position:absolute;bottom:0;left:0;right:0}.scrub-wrap{height:22px;position:relative}.scrub{width:100%;accent-color:var(--accent);background:0 0;margin:0;position:absolute;inset:0}.ticks{pointer-events:none;height:6px;position:absolute;top:15px;left:0;right:0}.ticks i{background:#19191773;border-radius:2px;width:2px;height:6px;position:absolute;top:0}.controls{flex-wrap:wrap;align-items:center;gap:8px;margin-top:4px;display:flex}.icon{border:1px solid var(--line);background:var(--panel2);border-radius:50%;place-items:center;width:38px;height:38px;font-size:15px;display:grid}.icon:hover{border-color:var(--blue)}.icon.primary{background:var(--accent);border-color:var(--accent);color:#fff;width:46px;height:46px;font-size:18px}.ctl{color:var(--mute);align-items:center;gap:8px;font-size:12px;display:flex}.ctl.grow{flex:1;min-width:140px}.ctl select{background:var(--panel2);color:var(--ink);border:1px solid var(--line);border-radius:7px;padding:4px 6px}.ctl input[type=range]{accent-color:var(--blue);flex:1}.loading{background:var(--bg);text-align:center;z-index:10;place-content:center;gap:14px;transition:opacity .4s;display:grid;position:absolute;inset:0}.loading.gone{opacity:0;pointer-events:none}.bar{background:var(--panel2);border-radius:9px;width:240px;height:6px;overflow:hidden}.bar i{background:var(--accent);width:8%;height:100%;transition:width .2s;display:block}.loading p{color:var(--mute);font-size:13px}.part-list{flex-direction:column;gap:6px;display:flex}.grp{border:1px solid var(--line);background:var(--panel2);border-radius:10px;overflow:hidden}.grp summary{cursor:pointer;justify-content:space-between;gap:8px;padding:8px 10px;font-size:13px;list-style:none;display:flex}.grp summary::-webkit-details-marker{display:none}.grp summary em{color:var(--mute);font-size:12px;font-style:normal}.part{align-items:center;gap:6px;padding:2px 6px;display:flex}.part .pname{text-align:left;color:#3f3e3a;background:0 0;border:0;border-radius:6px;flex:1;padding:5px 4px;font-size:12.5px}.part .pname:hover{color:var(--ink);background:#3d5f861f}.eye{width:22px;height:22px;color:var(--accent);background:0 0;border:0;font-size:11px}.eye[aria-pressed=false]{color:#b5ad9c}.part.off .pname{opacity:.45;text-decoration:line-through}.foot{border-top:1px solid var(--line);background:var(--panel);color:var(--mute);grid-area:foot;justify-content:space-between;align-items:center;gap:12px;padding:0 16px;font-size:12px;display:flex}.foot strong{color:var(--ink)}.about{background:var(--panel);width:calc(100% - 32px);max-width:520px;color:var(--ink);border:1px solid var(--line);border-radius:16px;margin:auto;padding:22px}.about::backdrop{background:#19191773}.about h2{color:var(--ink);letter-spacing:0;text-transform:none;margin:0 0 10px;font-size:15px}.about p,.about li{color:#3f3e3a;margin-bottom:8px;font-size:14px;line-height:1.6}.about ul{margin-bottom:10px;padding-left:18px}.about form{text-align:right;margin-top:14px}.shop{background:var(--bg);grid-area:shop;justify-content:center;padding:10px 18px 18px;display:flex}.shop[hidden]{display:none}.shop-card{background:var(--panel);border:1px solid var(--line);border-radius:20px;width:min(980px,100%);padding:16px 22px}.shop-top{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.shop-card h2{color:var(--ink);text-transform:none;letter-spacing:0;margin:6px 0;font-size:clamp(24px,4vw,38px)}.shop-text{color:#2a2926;font-size:clamp(17px,2.4vw,24px);line-height:1.45}.shop-meta{grid-template-columns:1fr 1fr;gap:12px;margin:14px 0;display:grid}.shop-meta div{background:var(--panel2);border-radius:12px;padding:10px 14px}.shop-meta dt{letter-spacing:1.4px;text-transform:uppercase;color:var(--mute);font-size:12px}.shop-meta dd{margin-top:3px;font-size:clamp(15px,2vw,19px)}.dots{justify-content:center;gap:6px;margin:8px 0 14px;display:flex}.dots i{background:#d9d3c4;border-radius:50%;width:9px;height:9px}.dots i.d{background:var(--accent)}.dots i.a{background:var(--gold);transform:scale(1.35)}.shop-nav{grid-template-columns:1fr 2fr;gap:12px;display:grid}.big{border:1px solid var(--line);background:var(--panel2);border-radius:16px;padding:16px;font-size:clamp(18px,2.6vw,26px);font-weight:700}.big.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.hint{text-align:center;color:var(--mute);margin-top:10px;font-size:12px}.app.shop-on{grid-template:"stage"minmax(0,1fr)"shop"/minmax(0,1fr)}.app.shop-on .steps,.app.shop-on .tree,.app.shop-on .dock,.app.shop-on .hud-top,.app.shop-on .top,.app.shop-on .foot{display:none}@media (width<=980px){.app{grid-template:"top"54px"stage"62dvh"steps""tree""foot"/1fr;height:auto;min-height:100dvh}.steps,.tree{border:0;border-top:1px solid var(--line);max-height:none}.brand p,.controls .ctl:not(.grow){display:none}.foot{flex-direction:column;gap:4px;height:auto;padding:10px 16px}.app.shop-on{grid-template-rows:minmax(0,1fr) auto;grid-template-areas:"stage""shop";height:100dvh}.shop-meta{grid-template-columns:1fr}.shop{padding:8px 10px 12px}.shop-card{padding:12px 14px}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}