:root{--green: #2f6b3a;--mint: #8fd19e;--mint-soft: #e7f5ea;--ink: #1d2320;--muted: #5f6b64;--line: #e3e7e4;--card: #ffffff;--bg: #f7f8fb;--night: #1f2421;--sun: #f2c94c;font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0}button{font:inherit;cursor:pointer;color:inherit}.error{color:#b3261e}.primary{width:100%;background:var(--mint);border:0;border-radius:16px;padding:16px;font-size:1.1rem;font-weight:700}.bottom-action{position:fixed;left:0;right:0;bottom:0;padding:12px 16px 18px;background:linear-gradient(transparent,var(--bg) 30%)}.bottom-action .primary{display:block;max-width:640px;margin:0 auto}.close{background:none;border:0;font-size:1.3rem}.close.round{width:44px;height:44px;border-radius:50%;background:#ffffffe5}.langs button{border:1px solid var(--green);background:none;color:var(--green);padding:4px 9px;border-radius:6px;margin-left:4px;font-size:.8rem}.langs button.on{background:var(--green);color:#fff}.home{max-width:640px;margin:0 auto;padding:12px 16px 80px}.top{display:flex;align-items:center;justify-content:space-between;gap:8px}.logo{color:var(--green);margin:6px 0;font-size:1rem;line-height:1.05;letter-spacing:-.01em;flex-shrink:0}.logo span{display:block;color:var(--ink);font-size:1.2rem}.chips-row{display:flex;align-items:center;gap:3px}.chip-stat{background:var(--mint-soft);border-radius:99px;padding:4px 7px;font-weight:700;font-size:.82rem;white-space:nowrap}.top .langs{display:flex}.top .langs button{margin-left:2px;padding:4px 6px}.topic-card{position:sticky;top:8px;z-index:2;display:flex;justify-content:space-between;align-items:center;background:var(--night);color:#fff;border-radius:20px;padding:16px 18px 22px;margin:12px 0 28px}.topic-label{color:#aab3ad;font-size:.85rem}.topic-name{font-size:1.5rem;font-weight:700}.change{background:#2f3a33;color:var(--mint);border:0;border-radius:99px;padding:8px 16px;font-weight:700}.topic-bar{position:absolute;left:12px;right:12px;bottom:8px;height:6px;border-radius:99px;background:#3a443e;overflow:hidden}.topic-bar span{display:block;height:100%;background:var(--mint)}.pct{position:absolute;bottom:-18px;transform:translate(-50%);background:var(--mint);color:var(--ink);border-radius:99px;padding:2px 8px;font-size:.75rem;font-weight:700;margin-left:12px}.all-done{text-align:center;color:var(--green);font-weight:600}.divider{display:flex;align-items:center;gap:12px;color:var(--muted);margin:28px 0 4px}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--line)}.course-title{text-align:center;margin:4px 0;font-size:1.35rem}.course-summary{text-align:center;color:var(--muted);margin:0 0 12px;font-size:.95rem}.path{list-style:none;padding:0;margin:0}.node{position:relative;display:flex;flex-direction:column;align-items:center;width:50%;padding:26px 0 8px}.node.right{margin-left:50%}.node+.node:before{content:"";position:absolute;top:-30px;width:100%;height:56px;border-top:4px solid var(--line);z-index:-1}.node.left+.node.right:before{left:-50%;border-right:4px solid var(--line);border-top-right-radius:20px;width:100%}.node.right+.node.left:before{left:50%;border-left:4px solid var(--line);border-top-left-radius:20px;width:100%}.node.done+.node:before{border-color:var(--mint)}.tile{position:relative;width:112px;height:112px;border-radius:20px;border:3px solid transparent;background:var(--card);box-shadow:0 2px 8px #00000014}.node.next .tile{border-color:var(--mint)}.node.todo .tile{opacity:.75}.tile-emoji{font-size:3rem}.tile-art{width:100%;height:100%;padding:6px;display:block}.node.done .tile-art{filter:grayscale(.4) brightness(.85)}.hero-art{width:210px;height:210px}.node.done .tile-emoji{filter:grayscale(.4) brightness(.8)}.check{position:absolute;top:0;right:0;bottom:0;left:0;margin:auto;width:52px;height:52px;border-radius:50%;background:var(--mint);color:#fff;font-size:1.8rem;font-weight:800;display:grid;place-items:center}.pad{position:absolute;top:-12px;right:-12px;width:36px;height:36px;border-radius:50%;background:#fff;box-shadow:0 1px 4px #00000026;display:grid;place-items:center;font-size:1rem}.node-title{margin-top:8px;text-align:center;max-width:160px;font-size:.95rem}.tooltip{position:absolute;top:-14px;background:var(--night);color:#fff;padding:6px 14px;border-radius:10px;font-weight:700;font-size:.9rem;z-index:1}.tooltip:after{content:"";position:absolute;left:50%;bottom:-6px;transform:translate(-50%);border:6px solid transparent;border-top-color:var(--night);border-bottom:0}.sheet-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;display:flex;align-items:flex-end;justify-content:center;z-index:5}.sheet{background:var(--bg);width:100%;max-width:640px;border-radius:20px 20px 0 0;padding:18px 16px 24px}.sheet h2{margin:0 0 12px}.topic-option{display:flex;align-items:center;gap:12px;width:100%;text-align:left;background:#fff;border:2px solid var(--line);border-radius:14px;padding:12px;margin-bottom:10px}.topic-option.on{border-color:var(--mint)}.topic-option small{display:block;color:var(--muted)}.topic-emoji{font-size:1.8rem}.pct-small{margin-left:auto;color:var(--green);font-weight:700}.intro{max-width:640px;margin:0 auto;padding-bottom:110px}.hero{position:relative;height:260px;background:linear-gradient(var(--mint-soft),var(--bg));display:grid;place-items:center}.hero .close{position:absolute;top:14px;left:14px}.hero-emoji{font-size:7rem}.type-badge{position:absolute;bottom:-12px;left:50%;transform:translate(-50%);background:#7d8691;color:#fff;text-transform:uppercase;font-weight:700;letter-spacing:.04em;padding:6px 16px;border-radius:99px;font-size:.85rem}.intro h1{text-align:center;padding:0 16px;margin:28px 0 16px}.intro-card{background:#fff;border-radius:18px;margin:0 16px;padding:14px 16px;box-shadow:0 1px 4px #0000000f}.intro-head{font-weight:600;color:var(--green)}.intro-card p{line-height:1.55;font-size:1.05rem;margin:8px 0 0}.host{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--bg)}.host iframe{width:100%;height:100%;border:0}.host-back{position:absolute;top:10px;left:10px;z-index:1;background:#ffffffd9;border:0;border-radius:8px;padding:6px 10px}.reader{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--bg);overflow-y:auto}.segments{position:sticky;top:0;display:flex;gap:4px;padding:10px 64px 6px;background:var(--bg);z-index:2}.segments span{flex:1;height:4px;border-radius:99px;background:var(--line)}.segments span.on{background:var(--green)}.reader>.close{position:fixed;top:2px;left:10px;z-index:3}.page{max-width:640px;margin:0 auto;padding:12px 20px 120px;line-height:1.6;font-size:1.08rem;position:relative;z-index:0}.page-emoji{font-size:4rem;text-align:center;background:var(--mint-soft);border-radius:20px;padding:18px 0}.page h2{margin:18px 0 8px}.page h3{margin:18px 0 4px;color:var(--green)}.page ul{padding-left:1.2em}.page li{margin:6px 0}.tap{position:fixed;top:40px;bottom:0;width:50%;background:transparent;border:0;z-index:1}.tap.left{left:0}.tap.right{right:0}.reader-done{position:fixed;left:0;right:0;bottom:0;padding:12px 16px 18px;z-index:2;background:linear-gradient(transparent,var(--bg) 30%)}.reader-done .primary{display:block;max-width:640px;margin:0 auto}.coach{position:fixed;top:0;right:0;bottom:0;left:0;z-index:4;border:0;background:#282c2ab3;color:#fff;display:flex;align-items:center;font-size:1.5rem;font-weight:700}.coach span{flex:1;text-align:center;padding:0 12px}.coach i{width:2px;align-self:stretch;margin:40px 0;background:#fff}.onboarding{max-width:640px;margin:0 auto;min-height:100vh;padding:12px 16px 110px}.ob-top{display:flex;justify-content:space-between;align-items:center}.dots{display:flex;gap:6px}.dots span{width:22px;height:6px;border-radius:99px;background:var(--line)}.dots span.on{background:var(--green)}.ob-body{padding-top:28px}.center{text-align:center}.ob-body h1{font-size:1.8rem;margin:4px 0 10px}.ob-kicker{color:var(--green);font-weight:600;margin:0}.ob-kicker.muted{color:var(--muted);text-transform:uppercase;letter-spacing:.05em}.ob-sub{color:var(--muted);line-height:1.5}.choices{display:grid;gap:12px;margin-top:18px}.choice-row{position:relative;display:flex;align-items:center;gap:14px;text-align:left;background:#fff;border:2px solid var(--line);border-radius:16px;padding:14px}.choice-row.on{border-color:var(--mint);background:#f6fbf7}.choice-row small{display:block;color:var(--muted);margin-top:2px}.row-emoji{font-size:2rem;width:48px;text-align:center}.recommended{position:absolute;top:-10px;right:12px;background:var(--sun);border-radius:99px;padding:2px 10px;font-size:.8rem;font-weight:600}.member-card{width:260px;margin:24px auto 0;border-radius:18px;background:linear-gradient(160deg,#4f8f5c,var(--green));color:#fff;padding:0 16px 14px;box-shadow:0 10px 30px #2f6b3a4d}.member-no{display:inline-block;background:#0000002e;padding:6px 14px;border-radius:0 0 10px 10px;font-weight:600;font-size:.9rem}.member-emoji{font-size:4.5rem;margin:18px 0 6px}.member-rank{font-size:1.5rem;font-weight:800}.member-level{opacity:.85}.member-foot{border-top:1px solid rgb(255 255 255 / 35%);margin-top:14px;padding-top:10px;font-size:.9rem;font-weight:600}.flame{font-size:5rem;margin-top:20px}.week{display:flex;justify-content:center;gap:8px;margin-top:18px}.week span{width:36px;height:36px;border-radius:50%;background:var(--line);display:grid;place-items:center;font-weight:700;color:var(--muted)}.week span.today{background:#ff9f43;color:#fff}.chip-premium{border:0;border-radius:99px;padding:4px 8px;font-weight:700;font-size:.8rem;background:var(--sun);white-space:nowrap}.chip-premium.on{background:var(--mint-soft);color:var(--green)}.pad.locked{background:#fff6d6}.locked-note{margin:14px 16px 0;padding:12px 14px;border-radius:14px;background:#fff6d6;line-height:1.45}.muted{color:var(--muted)}.link{background:none;border:0;color:var(--muted);text-decoration:underline;padding:10px;font-size:.95rem}.link.danger{color:#b3261e;padding-left:0}.bottom-action.stack{display:flex;flex-direction:column;align-items:center;gap:2px}.paywall{max-width:640px;margin:0 auto;min-height:100vh;padding:12px 16px 150px}.paywall .bottom-action.stack{position:static;background:none;padding:18px 0 0}.paywall h1{font-size:1.7rem;margin:6px 0}.paywall.center-col{text-align:center;padding-top:80px}.pay-hero{font-size:5rem}.pay-art{display:block;width:110px;height:110px;margin:0 auto 6px}.benefits{list-style:none;padding:0;margin:14px 0;display:grid;gap:6px}.plans{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0 8px}.plan{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;background:#fff;border:2px solid var(--line);border-radius:16px;padding:16px 12px 12px}.plan.on{border-color:var(--green);background:#f6fbf7;box-shadow:0 0 0 3px var(--mint-soft)}.plan .save{position:absolute;top:-11px;right:10px;background:var(--sun);border-radius:99px;padding:2px 9px;font-size:.8rem;font-weight:700}.plan-name{font-weight:700}.plan-price{font-size:1.05rem}.plan-equiv{color:var(--green);font-size:.85rem}.renew-note{color:var(--muted);font-size:.85rem;line-height:1.4}.field{display:grid;gap:6px;margin:16px 0 10px;font-size:.95rem}.field input{font:inherit;padding:12px;border-radius:12px;border:2px solid var(--line);background:#fff}.field input:focus{outline:none;border-color:var(--green)}.field-error{color:#b3261e;font-size:.85rem}.optin{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:var(--muted);line-height:1.4}.optin input{margin-top:3px;width:18px;height:18px;accent-color:var(--green)}.checkout-card{background:#fff;border-radius:16px;padding:14px 16px;margin:18px 0;box-shadow:0 1px 4px #0000000f}.checkout-row{display:flex;justify-content:space-between;gap:10px;padding:4px 0}.test-note{background:#fff6d6;border-radius:14px;padding:12px 14px;line-height:1.45;font-size:.92rem}.plan-card{background:#fff;border-radius:20px;padding:18px;margin:14px auto;max-width:360px;box-shadow:0 2px 10px #0000000f}.plan-card h1{font-size:1.4rem}.plan-card-emoji{font-size:3rem}.plan-facts{list-style:none;padding:0;margin:10px 0 0;display:grid;gap:8px;text-align:left}.notice{position:fixed;top:10px;left:50%;transform:translate(-50%);z-index:6;width:min(92vw,560px);text-align:left;display:flex;justify-content:space-between;gap:12px;background:var(--night);color:#fff;border:0;border-radius:14px;padding:12px 14px;box-shadow:0 6px 20px #0003}.legal-links{text-align:center;font-size:.8rem;color:var(--muted);margin-top:18px}.legal-links a{color:var(--muted)}.primary:disabled{opacity:.6;cursor:default}.badge-art{font-size:6rem;width:160px;height:160px;margin:30px auto 16px;border-radius:36px;display:grid;place-items:center;background:radial-gradient(var(--sun),#e0a526);box-shadow:0 10px 30px #e0a52659}