body.sheet-lock{overflow:hidden}.lp{--bg:var(--color-background);--surface:var(--color-surface);--bg2:var(--color-background-secondary);--fill:var(--color-fill);--label:var(--color-label);--label2:var(--color-label-secondary);--label3:var(--color-label-tertiary);--sep:var(--color-separator);--sep-strong:var(--color-separator-strong);--control:var(--color-border-control);--accent:var(--color-accent);--accent-strong:var(--color-accent-strong);--accent-100:var(--color-accent-100);--accent-200:var(--color-accent-200);--success:var(--color-success);--reading:var(--font-source-serif),Georgia,"Times New Roman",serif;--ui:var(--font-source-sans),-apple-system,"Segoe UI",Arial,sans-serif;margin:0;background:var(--bg);color:var(--label);font-family:var(--ui);font-size:18px;line-height:1.55;-webkit-font-smoothing:antialiased;a{color:var(--accent)}a:focus-visible,button:focus-visible,input:focus-visible+span{outline:3px solid var(--accent);outline-offset:3px}.wrap{max-width:1120px;margin:0 auto;padding:0 24px}.narrow{max-width:760px}h1,h2,h3{font-family:var(--reading);font-weight:700;letter-spacing:-.01em;margin:0}h1{font-size:clamp(2.5rem,1.84rem + 2.7vw,4rem);line-height:1.06}h2{font-size:clamp(1.75rem,1.42rem + 1.35vw,2.5rem);line-height:1.12}h3{font-size:1.3rem;line-height:1.25}.eyebrow{font-size:.85rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}.muted{color:var(--label2)}section{padding:88px 0;border-top:1px solid var(--sep)}header.top{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--sep)}header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}.logo{font-family:var(--reading);font-weight:700;font-size:1.45rem;color:var(--label);text-decoration:none}.logo span{color:var(--accent)}nav a{color:var(--label2);text-decoration:none;margin-left:28px;font-weight:600;font-size:.95rem}nav a:hover{color:var(--label)}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:10px;border:0;background:var(--accent);color:var(--color-accent-on);font:600 1rem var(--ui);cursor:pointer;text-decoration:none}.btn:hover{background:var(--accent-strong)}.btn.ghost{background:transparent;color:var(--accent);border:1.5px solid var(--accent)}.btn.ghost:hover{background:var(--accent-100)}nav .btn{margin-left:28px;min-height:44px;padding:0 18px;color:var(--color-accent-on)}.hero{padding:72px 0 88px;border-top:0}.hero .grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.hero p.lead{font-family:var(--reading);font-size:clamp(1.25rem,1.1rem + .5vw,1.5rem);line-height:1.4;color:var(--label2);margin:24px 0 32px}form.signup{display:flex;gap:10px;flex-wrap:wrap;max-width:520px}form.signup input[type=email]{flex:1 1 260px;min-height:52px;padding:0 16px;border:1.5px solid var(--control);border-radius:10px;font:1.05rem var(--ui);background:var(--surface)}form.signup .btn{min-height:52px}.reassure{display:flex;gap:20px;flex-wrap:wrap;margin-top:16px;font-size:.95rem;color:var(--label2)}.reassure span:before{content:"✓ ";color:var(--success);font-weight:700}.paper{background:var(--surface);border:1px solid var(--sep);border-radius:14px;box-shadow:0 1px 2px rgba(0,0,0,.04),0 12px 32px rgba(41,39,35,.08);padding:28px 30px;font-family:var(--reading)}.paper .meta{font-family:var(--ui);font-size:.85rem;color:var(--label3);display:flex;justify-content:space-between;border-bottom:1px solid var(--sep);padding-bottom:12px;margin-bottom:16px}.paper .tag{font-family:var(--ui);font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);margin-bottom:6px}.paper h4{font-size:1.2rem;line-height:1.25;margin:6px 0 8px}.paper p{font-size:1.06rem;line-height:1.55;margin:0 0 10px}.src{font-family:var(--ui);font-size:.85rem;color:var(--label3)}.src a{color:var(--label2)}.paper hr{border:0;border-top:1px solid var(--sep);margin:18px 0}.fade{position:relative;max-height:520px;overflow:hidden}.fade:after{content:"";position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(transparent,var(--surface))}.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:48px}.card{background:var(--surface);border:1px solid var(--sep);border-radius:14px;padding:28px}.num{font-family:var(--reading);font-size:2.2rem;font-weight:700;color:var(--accent);line-height:1}.card h3{margin:14px 0 10px}.card p{margin:0;color:var(--label2)}.anatomy{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;margin-top:48px}.parts{display:flex;flex-direction:column;gap:16px}.part{display:grid;grid-template-columns:56px 1fr;gap:16px;padding:20px;border-radius:12px;background:var(--surface);border:1px solid var(--sep)}.part .ico{width:56px;height:56px;border-radius:12px;background:var(--accent-100);display:grid;place-items:center;font-size:1.6rem}.part h3{font-size:1.15rem;margin-bottom:4px}.part p{margin:0;color:var(--label2);font-size:1rem}.picker{margin-top:40px;background:var(--surface);border:1px solid var(--sep);border-radius:16px;padding:32px}.picker fieldset{border:0;margin:0 0 28px;padding:0}.picker legend{font-weight:700;font-size:1.05rem;margin-bottom:14px;padding:0}.chips{display:flex;flex-wrap:wrap;gap:10px}.chip input{position:absolute;opacity:0;width:1px;height:1px}.chip span{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 16px;border:1.5px solid var(--sep-strong);border-radius:999px;cursor:pointer;font-weight:600;background:var(--surface);user-select:none}.chip span:before{content:"+";font-weight:700;color:var(--label3);width:1em;text-align:center}.chip input:checked+span{background:var(--accent-100);border-color:var(--accent);color:var(--accent-strong)}.chip input:checked+span:before{content:"✓";color:var(--accent)}.chip input:focus-visible+span{outline:3px solid var(--accent);outline-offset:2px}.row2{display:grid;grid-template-columns:1fr 1fr;gap:28px}select{min-height:48px;width:100%;padding:0 12px;border:1.5px solid var(--control);border-radius:10px;font:1rem var(--ui);background:var(--surface)}.toggle{display:flex;gap:12px;align-items:flex-start;min-height:44px;cursor:pointer;margin-bottom:10px}.toggle input{width:22px;height:22px;margin-top:3px;accent-color:var(--accent)}.toggle small{display:block;color:var(--label3);font-size:.9rem}.extras-title{font-weight:700;font-size:1.05rem;margin-bottom:14px}.extras p{margin:0 0 12px;padding-left:14px;border-left:3px solid var(--accent-200)}.extras small{display:block;color:var(--label3);font-size:.9rem;font-weight:400}.srcgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}.srcgrid h3{font-family:var(--ui);font-size:.85rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--label3);margin-bottom:12px}.srcgrid ul{list-style:none;margin:0;padding:0}.srcgrid li{padding:9px 0;border-bottom:1px solid var(--sep);font-weight:600}.srcgrid li small{display:block;font-weight:400;color:var(--label3);font-size:.85rem}.principles{display:grid;grid-template-columns:1fr 1fr;gap:20px 48px;margin-top:40px}.pr{display:grid;grid-template-columns:32px 1fr;gap:12px}.pr b{display:block;margin-bottom:2px}.pr .mark{font-family:var(--reading);font-weight:700;color:var(--accent);font-size:1.3rem;line-height:1.3}.pr p{margin:0;color:var(--label2)}.author{display:grid;grid-template-columns:120px 1fr;gap:28px;align-items:center;margin-top:36px}.avatar{width:120px;height:120px;border-radius:50%;background:var(--bg2);display:grid;place-items:center;font-family:var(--reading);font-size:2.4rem;font-weight:700;color:var(--label2)}.support{background:var(--fill);border-radius:16px;padding:36px;display:flex;justify-content:space-between;align-items:center;gap:32px;margin-top:48px}.support p{margin:8px 0 0;color:var(--label2)}.trial{background:var(--accent-100);border:1px solid var(--accent-200);border-radius:12px;padding:18px 22px;font-weight:600;color:var(--accent-strong)}.plans,.trial{margin-top:28px}.plans{display:grid;grid-template-columns:1fr 1fr;gap:28px}.plan{background:var(--surface);border:1px solid var(--sep);border-radius:14px;padding:30px}.plan.full{border:2px solid var(--accent)}.plan h3{margin-bottom:6px}.plan .price{font-family:var(--reading);font-size:1.6rem;font-weight:700;color:var(--accent);margin-bottom:18px}.plan ul{list-style:none;margin:0;padding:0}.plan li{padding:9px 0 9px 28px;border-top:1px solid var(--sep);position:relative;color:var(--label2)}.plan li:before{content:"✓";position:absolute;left:4px;color:var(--success);font-weight:700}@media (max-width:900px){.plans{grid-template-columns:1fr}}.linklike{background:none;border:0;padding:0;font:inherit;color:var(--label2);text-decoration:underline;cursor:pointer}.sheet-backdrop{position:fixed;inset:0;background:rgba(26,26,26,.45);opacity:0;transition:opacity .3s;z-index:40}.sheet-backdrop.show{opacity:1}.sheet{position:fixed;left:0;right:0;bottom:0;margin:0 auto;max-width:760px;max-height:88vh;display:flex;flex-direction:column;background:var(--surface);border-radius:18px 18px 0 0;box-shadow:0 -10px 40px rgba(26,26,26,.18);transform:translateY(105%);transition:transform .32s cubic-bezier(.2,.8,.2,1),visibility 0s linear .32s;visibility:hidden;z-index:50}.sheet.open{transform:translateY(0);visibility:visible;transition:transform .32s cubic-bezier(.2,.8,.2,1)}.sheet-head{position:relative;padding:14px 64px 14px 24px;border-bottom:1px solid var(--sep);touch-action:none;cursor:grab;user-select:none}.grabber{width:44px;height:5px;border-radius:3px;background:var(--sep-strong);margin:0 auto 12px}.sheet-head h2{font-size:1.5rem}.sheet-close{position:absolute;right:12px;top:22px;width:44px;height:44px;border:0;border-radius:50%;background:var(--fill);font-size:1.7rem;line-height:1;color:var(--label);cursor:pointer}.sheet-close:hover{background:var(--bg2)}.sheet-body{overflow-y:auto;overscroll-behavior:contain;padding:8px 24px 40px;-webkit-overflow-scrolling:touch}.sheet-intro{color:var(--label2);margin:12px 0 4px}.sheet-body h3{font-family:var(--ui);font-size:.82rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin:26px 0 6px}.slist{list-style:none;margin:0;padding:0}.slist li{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:11px 0;border-bottom:1px solid var(--sep)}.sname{font-weight:600}.sname small{display:block;font-weight:400;color:var(--label3);font-size:.86rem}.sfreq{color:var(--label2);font-size:.92rem;text-align:right;max-width:46%}.sheet-edition{font-family:var(--reading)}.sheet-edition .mast{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:16px 0 12px;border-bottom:3px double var(--sep-strong);font-family:var(--ui);font-size:.9rem;color:var(--label3)}.sheet-edition .mast b{font-family:var(--reading);font-size:1.5rem;color:var(--label)}.sheet-edition .mast b span{color:var(--accent)}.sheet-edition section+section{border-top:1px solid var(--sep);margin-top:8px}.sheet-edition .item{padding:12px 0 14px}.sheet-edition .tag{font-family:var(--ui);font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);margin-bottom:4px}.sheet-edition .item p{font-size:1.06rem;line-height:1.6;margin:0 0 8px}.sheet-edition .sign{margin:12px 0 0;padding-top:18px;border-top:1px solid var(--sep);line-height:1.6}details{border-bottom:1px solid var(--sep);padding:6px 0}summary{cursor:pointer;min-height:56px;display:flex;align-items:center;font-weight:600;font-size:1.08rem;list-style:none}summary::-webkit-details-marker{display:none}summary:after{content:"+";margin-left:auto;font-size:1.4rem;color:var(--accent)}details[open] summary:after{content:"–"}details p{margin:0 0 18px;color:var(--label2)}.final{text-align:center;background:var(--label);border-top:0}.final,.final h2{color:var(--bg)}.final p{color:var(--bg2)}.final form.signup{margin:32px auto 0}.final input[type=email]{border-color:var(--control)}footer{padding:40px 0;font-size:.9rem;color:var(--label3)}footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}footer a{color:var(--label2);margin-left:20px}@media (max-width:900px){.anatomy,.cols3,.hero .grid,.principles,.row2{grid-template-columns:1fr}.srcgrid{grid-template-columns:1fr 1fr}nav a:not(.btn){display:none}.support{flex-direction:column;align-items:flex-start}section{padding:64px 0}}}.lp{.picker input[type=email],.picker select{color:var(--label);background:var(--surface)}.email-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:8px}.email-row input[type=email]{flex:1 1 260px;min-height:52px;padding:0 16px;border:1.5px solid var(--control);border-radius:10px;font:1.05rem var(--ui)}.email-row .btn{min-height:52px}.masked{flex:1 1 260px;margin:0}.consent,.masked{color:var(--label2)}.consent{display:flex;gap:12px;align-items:flex-start;margin-top:14px;font-size:.95rem}.consent input{width:22px;height:22px;margin-top:2px;accent-color:var(--accent);flex:none}.form-alert{margin:12px 0 0;color:var(--accent-strong);font-weight:600}.signup input[type=email]{color:var(--label)}.sheet-body a{color:var(--accent)}}