:root{--paper:#f5f4f0;--surface:#fff;--surface-2:#faf9f6;--ink:#15161a;--ink-soft:#565a63;--ink-faint:#8a8f98;--line:#e7e4db;--line-strong:#d8d5cb;--chrome:#111216;--chrome-2:#1b1d23;--accent:#ff5a1f;--accent-ink:#c2410c;--accent-wash:#ffece3;--warn:#a45a09;--warn-wash:#fbf1e3;--warn-ink:#6b3d05;--danger:#c4362b;--danger-ink:#8f2820;--danger-wash:#fbeceb;--ok:#15803d;--mono:ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;--sans:-apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", system-ui, sans-serif;--r:14px;--r-sm:10px;--tap:56px;--grid-image:linear-gradient(to right, #3848661f 1.3px, transparent 1.3px), linear-gradient(to bottom, #3848661f 1.3px, transparent 1.3px), linear-gradient(to right, #3848660e 1px, transparent 1px), linear-gradient(to bottom, #3848660e 1px, transparent 1px);--grid-size:130px 130px, 130px 130px, 26px 26px, 26px 26px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0}html,body,#root{height:100%}body{background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;touch-action:manipulation;font-size:17px;line-height:1.45}body.paper-grid{background-color:var(--paper);background-image:var(--grid-image);background-size:var(--grid-size);background-position:0 0}.app{max-width:560px;min-height:100%;padding-bottom:calc(40px + env(safe-area-inset-bottom,0px));margin:0 auto}.topbar{z-index:10;padding:calc(14px + env(safe-area-inset-top,0px)) max(20px, env(safe-area-inset-right,0px)) 14px max(20px, env(safe-area-inset-left,0px));background:color-mix(in srgb, var(--paper) 86%, transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);align-items:center;gap:12px;display:flex;position:sticky;top:0}.topbar .back{appearance:none;color:var(--accent-ink);font:inherit;cursor:pointer;min-height:var(--tap);background:0 0;border:none;align-items:center;gap:3px;margin:-8px 2px -8px -6px;padding:8px 6px;font-weight:650;display:inline-flex}.topbar .back:active{opacity:.6}.brand-mark{background:#f5f4f0;border-radius:9px;flex:none;width:32px;height:32px;overflow:hidden;box-shadow:inset 0 0 0 1px #15161a24,0 1px 2px #00000024}.brand-mark svg{display:block}.brand-name{letter-spacing:-.3px;font-size:1.18rem;font-weight:800}.brand-tag{color:var(--ink-faint);font-size:.8rem;font-family:var(--mono);margin-left:auto}.wrap{padding:20px}.section-title{text-transform:uppercase;letter-spacing:.12em;color:var(--ink-faint);margin:0 4px 11px;font-size:.74rem;font-weight:700}.tool-group{margin-top:10px}.tool-group+.tool-group{margin-top:30px}.tool-help{color:var(--ink-soft);border-left:3px solid var(--accent);margin:2px 2px 18px;padding:1px 0 1px 12px;font-size:.88rem;line-height:1.5}.tool-help 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2px 10px -2px #ff5a1f99}.tool.hero .t-sub{color:#ffffffbd}.tool.hero .chev{color:#fff9}.field{margin-bottom:16px}.field>label{margin:0 2px 7px;font-size:.9rem;font-weight:600;display:block}.field>label .hint{color:var(--ink-faint);font-weight:400}.input,textarea.input{width:100%;min-height:var(--tap);border:1.5px solid var(--line-strong);border-radius:var(--r-sm);background:var(--surface);color:var(--ink);font-family:var(--mono);outline:none;padding:12px 14px;font-size:1.15rem;transition:border-color .12s,box-shadow .12s}.input:focus,textarea.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-wash)}.input::placeholder{color:var(--ink-faint)}textarea.input{resize:vertical;min-height:120px;font-size:1rem;line-height:1.5}.row{grid-template-columns:1fr 1fr;gap:12px;display:grid}.seg{background:var(--surface-2);border:1px solid var(--line-strong);border-radius:var(--r-sm);flex-wrap:wrap;gap:4px;padding:4px;display:inline-flex}.seg 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0;border:none;min-height:0;padding:4px;font-size:.78rem;font-weight:650;text-decoration:underline}.picker{flex-wrap:wrap;gap:8px;margin:-2px 0 4px;display:flex}.pick-chip{appearance:none;border:1px solid var(--line-strong);background:var(--surface);font:inherit;color:var(--ink);cursor:pointer;border-radius:999px;align-items:center;gap:7px;min-height:44px;padding:9px 14px;font-size:.85rem;font-weight:600;display:inline-flex}.pick-chip:active{background:var(--accent-wash);border-color:var(--accent)}.pick-chip .pc-mw{font-family:var(--mono);color:var(--ink-faint);font-size:.76rem}.reuse-hint{text-align:left;width:100%;font:inherit;color:var(--accent-ink);cursor:pointer;background:0 0;border:none;margin:0 0 6px;padding:5px 2px 0;font-size:.82rem;line-height:1.45;display:block}.reuse-hint:after{content:" ›";font-weight:700}.reuse-hint:active{opacity:.55}.construct{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);margin-top:6px;padding:16px 16px 18px}.layout{flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:6px;display:flex}.layout .lp{font-family:var(--mono);background:var(--accent-wash);color:var(--accent-ink);border-radius:7px;padding:5px 9px;font-size:.8rem;font-weight:650}.layout .lp.core{background:var(--chrome);color:#fff}.layout .dash{color:var(--ink-faint)}.add-label{text-transform:uppercase;letter-spacing:.07em;color:var(--ink-faint);margin:16px 2px 9px;font-size:.72rem;font-weight:700}.add-row{flex-wrap:wrap;gap:8px;display:flex}.add-chip{appearance:none;border:1px solid var(--line-strong);background:var(--surface-2);font:inherit;color:var(--ink);cursor:pointer;border-radius:999px;min-height:44px;padding:10px 14px;font-size:.85rem;font-weight:600}.add-chip:active{background:var(--accent-wash)}.add-chip:disabled{opacity:.4;cursor:default}.add-chip[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#fff}.part-chip{background:var(--accent-wash);color:var(--accent-ink);font-family:var(--mono);border-radius:999px;align-items:center;gap:8px;padding:7px 6px 7px 13px;font-size:.82rem;font-weight:650;display:inline-flex}.part-chip .x{appearance:none;background:color-mix(in srgb, var(--accent) 18%, transparent);color:inherit;cursor:pointer;border:none;border-radius:50%;place-items:center;width:26px;height:26px;font-size:1rem;line-height:1;display:grid}.custom-row{gap:8px;margin-top:8px;display:flex}.custom-row .input{flex:1;min-height:44px;font-size:1rem}.custom-row .add-chip{flex:none}.pro-badge{letter-spacing:.08em;color:var(--accent-ink);background:var(--accent-wash);border:1px solid color-mix(in srgb, var(--accent) 34%, 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.ti{width:26px;height:26px}.feature-txt{flex-direction:column;gap:3px;display:flex}.feature-name{letter-spacing:-.02em;font-size:1.12rem;font-weight:700}.feature-sub{color:#ffffffb8;font-size:.85rem}.feature .chev{color:#ffffff8c;margin-left:auto;font-size:1.3rem}.grid{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:4px;display:grid}.cell{text-align:left;font:inherit;color:inherit;cursor:pointer;background:var(--surface);border:1px solid var(--line);border-radius:14px;flex-direction:column;align-items:flex-start;min-height:116px;padding:15px 15px 14px;transition:border-color .12s,transform 50ms;display:flex;position:relative}.cell:hover{border-color:var(--line-strong)}.cell:active{transform:scale(.985)}.cell-ic{background:var(--surface-2);border:1px solid var(--line);width:40px;height:40px;color:var(--accent-ink);border-radius:11px;place-items:center;margin-bottom:11px;display:grid}.cell-ic .ti{width:22px;height:22px}.cell-name{margin-bottom:2px;font-size:1rem;font-weight:650}.cell-sub{color:var(--ink-soft);font-size:.8rem}.cell-pro{letter-spacing:.08em;color:var(--accent-ink);background:var(--accent-wash);border:1px solid color-mix(in srgb, var(--accent) 30%, transparent);border-radius:6px;padding:2px 6px;font-size:.58rem;font-weight:800;position:absolute;top:12px;right:12px}.ti{width:24px;height:24px;display:block}.cmap{flex-wrap:wrap;align-items:center;gap:7px;display:flex}.cpill{font-family:var(--mono);background:var(--accent-wash);color:var(--accent-ink);border-radius:8px;align-items:center;gap:5px;padding:6px 5px 6px 11px;font-size:.8rem;font-weight:650;display:inline-flex}.cpill--core{background:var(--chrome);color:#fff;padding:7px 12px}.cpill--cut{background:var(--surface-2);color:var(--ink);border:1px dashed var(--line-strong);padding:5px 5px 5px 10px}.cpill .cx{appearance:none;background:color-mix(in srgb, var(--accent) 16%, transparent);color:inherit;cursor:pointer;border:none;border-radius:6px;place-items:center;width:22px;height:22px;font-size:1rem;line-height:1;display:grid}.cpill--cut .cx{background:var(--line)}.cmap-hint{color:var(--ink-faint);margin:10px 2px 2px;font-size:.76rem}.add-build{appearance:none;border:1.5px dashed var(--line-strong);background:var(--surface);width:100%;color:var(--ink-soft);border-radius:var(--r-sm);min-height:52px;font:inherit;cursor:pointer;justify-content:center;align-items:center;gap:9px;margin-top:14px;font-weight:650;display:flex}.add-build span{text-transform:uppercase;letter-spacing:.09em;color:var(--ink-faint);font-size:.68rem;font-weight:700}.add-build:active{background:var(--surface-2);border-color:var(--accent);color:var(--accent-ink)}.toggle-row{width:100%;font:inherit;color:inherit;text-align:left;cursor:pointer;background:0 0;border:none;align-items:center;gap:14px;padding:2px;display:flex}.tg-txt{flex-direction:column;flex:1;gap:2px;display:flex}.tg-label{font-size:.95rem;font-weight:600}.tg-desc{color:var(--ink-soft);font-size:.82rem;line-height:1.4}.tg-switch{background:var(--line-strong);border-radius:999px;flex:none;width:48px;height:29px;transition:background .15s;position:relative}.tg-switch.on{background:var(--accent)}.tg-knob{background:#fff;border-radius:50%;width:23px;height:23px;transition:transform .15s;position:absolute;top:3px;left:3px;box-shadow:0 1px 3px #00000040}.tg-switch.on .tg-knob{transform:translate(19px)}.set-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 16px}.set-row{justify-content:space-between;align-items:center;gap:12px;display:flex}.set-note{color:var(--ink-faint);margin:10px 2px 0;font-size:.8rem;line-height:1.5}.ok-chip{font-family:var(--mono);color:var(--ok);background:color-mix(in srgb, var(--ok) 12%, transparent);border-radius:7px;padding:5px 10px;font-size:.78rem;font-weight:700}.manage-row{background:var(--surface);border:1px solid var(--line);border-radius:12px;align-items:center;gap:8px;margin-bottom:8px;padding:10px 8px 10px 14px;display:flex}.manage-row.editing{gap:6px;padding:8px}.manage-row .input{flex:1}.mr-txt{flex-direction:column;flex:1;gap:1px;min-width:0;display:flex}.mr-name{white-space:nowrap;text-overflow:ellipsis;font-size:.95rem;font-weight:600;overflow:hidden}.mr-sub{color:var(--ink-soft);font-size:.8rem;font-family:var(--mono)}.manage-row .btn-ghost{flex:none;min-height:40px;padding:0 8px}.btn-ghost.danger{color:var(--warn)}.empty-line{color:var(--ink-faint);padding:6px 2px 12px;font-size:.9rem}.topbar-right{align-items:center;gap:8px;margin:-6px 0 -6px auto;display:flex}.topbar-pro{font-family:var(--mono);letter-spacing:.09em;color:#fff;background:var(--accent);border-radius:6px;padding:4px 8px;font-size:.64rem;font-weight:800}.nav-back{font:inherit;color:inherit;cursor:pointer;background:0 0;border:none;align-items:center;gap:10px;min-height:44px;margin:-6px 0 -6px -2px;padding:6px 6px 6px 0;display:flex}.nav-back:active{opacity:.55}.nav-chev{color:var(--accent-ink);place-items:center;margin-right:-2px;display:grid}.nav-ic{background:var(--surface-2);border:1px solid var(--line);width:30px;height:30px;color:var(--accent-ink);border-radius:8px;flex:none;place-items:center;display:grid}.nav-ic .ti,.nav-ic svg{width:18px;height:18px}.nav-t{letter-spacing:-.01em;font-size:1.06rem;font-weight:700}.row{align-items:end}.result-hero{position:relative}.result-hero .rl{padding-right:70px}.rc-copy{appearance:none;border:1px solid var(--line-strong);background:var(--surface);font-family:var(--sans);color:var(--ink-soft);cursor:pointer;z-index:1;border-radius:8px;min-height:36px;padding:7px 12px;font-size:.78rem;font-weight:600;position:absolute;top:14px;right:14px}.rc-copy:active{background:var(--accent-wash);border-color:var(--accent);color:var(--accent-ink)}.seqout{font-family:var(--mono);word-break:break-all;color:var(--ink);-webkit-user-select:all;user-select:all;margin-top:8px;font-size:.95rem;line-height:1.55}.seq-scroll{max-height:220px;overflow-y:auto}.note-solo{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent-ink);border-radius:var(--r);color:var(--ink);box-shadow:var(--shadow);align-items:flex-start;gap:10px;margin-top:6px;padding:15px 16px;font-size:.92rem;line-height:1.5;display:flex}.note-solo .ni{color:var(--accent-ink);flex:none;font-weight:800}.result.error-card{border-top:3px solid var(--danger)}.ec-item{padding:16px 18px}.ec-item+.ec-item{border-top:1px solid var(--line)}.ec-head{align-items:center;gap:10px;display:flex}.ec-ic{color:var(--danger);font-size:1.3rem;font-weight:800;line-height:1}.ec-title{color:var(--danger-ink);letter-spacing:-.01em;font-size:1.04rem;font-weight:700}.ec-detail{color:var(--ink-soft);margin:8px 0 0;font-size:.9rem;line-height:1.5}.ec-math{color:var(--ink-faint);font-family:var(--mono);border-top:1px solid var(--line);background:var(--surface-2);word-break:break-word;margin:0;padding:12px 18px;font-size:.78rem}.pick-chip.on{border-color:var(--accent);background:var(--accent-wash);color:var(--accent-ink)}.paywall-overlay{z-index:200;background-color:var(--paper);background-image:var(--grid-image);background-size:var(--grid-size);animation:.24s cubic-bezier(.2,.7,.2,1) pw-in;position:fixed;inset:0}@keyframes pw-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.pw-close{top:calc(12px + env(safe-area-inset-top,0px));z-index:2;background:color-mix(in srgb, var(--surface) 82%, 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0;font-size:1.02rem}.pw-context{background:var(--accent-wash);color:var(--accent-ink);border-radius:12px;align-items:center;gap:9px;margin-bottom:22px;padding:12px 15px;font-size:.9rem;display:flex}.pw-context svg{flex:none;width:20px;height:20px}.pw-list{flex-direction:column;gap:16px;margin:0 0 26px;padding:0;list-style:none;display:flex}.pw-list li{align-items:flex-start;gap:12px;display:flex}.pw-check{background:var(--accent);color:#fff;border-radius:7px;flex:none;place-items:center;width:24px;height:24px;margin-top:1px;font-size:.82rem;font-weight:800;display:grid}.pw-ft{letter-spacing:-.01em;font-size:1rem;font-weight:650;display:block}.pw-fd{color:var(--ink-soft);margin-top:2px;font-size:.85rem;line-height:1.4;display:block}.pw-cta{justify-content:center;align-items:center;min-height:58px;font-size:1.05rem;text-decoration:none;display:flex}.pw-restore{width:100%;font:inherit;color:var(--accent-ink);cursor:pointer;background:0 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h2{letter-spacing:-.02em;text-wrap:balance;margin:6px 0;font-size:clamp(1.5rem,6vw,1.75rem)}.onb-slide p{color:var(--ink-soft);max-width:30ch;line-height:1.5}.onb-visual{place-items:center;width:100%;min-height:210px;margin-bottom:18px;display:grid}.onb-grid{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.onb-glyph{background:var(--surface);border:1px solid var(--line);width:62px;height:62px;color:var(--accent-ink);box-shadow:var(--shadow);opacity:0;border-radius:16px;place-items:center;animation:.42s cubic-bezier(.2,.8,.2,1) forwards onb-pop;display:grid;transform:scale(.9)}.onb-glyph svg{width:28px;height:28px}@keyframes onb-pop{to{opacity:1;transform:none}}.onb-card{background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--accent);text-align:left;width:265px;box-shadow:var(--shadow);border-radius:14px;padding:16px 18px}.oc-lbl{color:var(--ink-soft);font-size:.8rem}.oc-val{font-family:var(--mono);letter-spacing:-1px;margin-top:2px;font-size:2rem;font-weight:700}.oc-val small{color:var(--ink-soft);font-size:1rem;font-weight:600}.oc-fx{font-family:var(--mono);color:var(--ink-soft);background:var(--surface-2);border-radius:8px;margin-top:12px;padding:8px 10px;font-size:.74rem}.oc-trap{color:var(--warn-ink);background:var(--warn-wash);border-left:3px solid var(--warn);border-radius:8px;gap:8px;margin-top:10px;padding:9px 10px;font-size:.78rem;line-height:1.35;display:flex}.oc-trap span{color:var(--warn);font-weight:800}.onb-flow{flex-direction:column;align-items:center;gap:12px;display:flex}.of-chip{background:var(--accent-wash);color:var(--accent-ink);font-family:var(--mono);border-radius:999px;padding:11px 18px;font-size:.9rem;font-weight:650}.of-arrow{color:var(--ink-faint);font-size:1.5rem;line-height:1}.of-field{background:var(--surface);border:1.5px solid 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.onb-check{background:var(--accent);border-color:var(--accent);color:#fff}.onb-lock{background:var(--accent-wash);width:88px;height:88px;color:var(--accent-ink);border-radius:26px;place-items:center;display:grid}.onb-consent{flex-direction:column;gap:10px;width:100%;max-width:300px;margin-top:22px;display:flex}.onb-foot{padding:16px 26px calc(26px + env(safe-area-inset-bottom,0px));flex-direction:column;gap:16px;display:flex}.onb-dots{justify-content:center;gap:8px;display:flex}.onb-dot{background:var(--line-strong);cursor:pointer;border:none;border-radius:50%;width:8px;height:8px;padding:0;transition:all .22s}.onb-dot.on{background:var(--accent);border-radius:4px;width:22px}.onb-next{align-self:center;width:auto;padding:0 34px}.set-linkrow{width:100%;font:inherit;color:inherit;cursor:pointer;background:0 0;border:none;justify-content:space-between;align-items:center;padding:4px 2px;display:flex}.set-chev{color:var(--ink-faint);font-size:1.3rem}@media (prefers-reduced-motion:reduce){*{transition:none!important}.splash-svg,.sp-liquid,.splash-glow,.splash-word,.splash-tag,.onb-glyph{opacity:1;animation:none;transform:none}}