:root{--cream:#f4efe4;--sage:#5f7f52;--sage2:#e6eedf;--coral:#e9846b;--coral2:#fbe5dd;--lav:#ece4f6;--ink:#2b2b2b;--mute:#5d5a55;--line:#e3dccd}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--cream);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Sukhumvit Set","Noto Sans Thai","Leelawadee UI",sans-serif;line-height:1.6;font-size:17px}
a{color:var(--sage)}
.wrap{max-width:720px;margin:0 auto;padding:0 16px}
.top{display:flex;justify-content:space-between;align-items:center;padding:14px 0}
.pill{display:inline-block;background:var(--sage);color:#fff;border-radius:99px;padding:4px 14px;font-weight:700;text-decoration:none}
.top a.ghost{color:var(--sage);font-weight:700;text-decoration:none;font-size:.95rem}
h1{font-size:1.75rem;line-height:1.3;margin:.3em 0}
h2{font-size:1.3rem;margin:1.6em 0 .5em}
.lead{color:var(--mute);font-size:1.05rem}
.hero{display:grid;grid-template-columns:1fr;gap:18px;align-items:center;padding:6px 0 10px}
.hero img{width:72%;height:auto;max-width:300px;justify-self:center;border-radius:8px;box-shadow:0 6px 24px rgba(0,0,0,.16)}
@media(min-width:680px){.hero{grid-template-columns:1.15fr .85fr}.hero img{width:100%}}
.card{background:#fff;border-radius:16px;padding:16px 18px;margin:12px 0;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.ticks{list-style:none;padding:0;margin:.4em 0}.ticks li{padding-left:1.6em;position:relative;margin:.35em 0}
.ticks li::before{content:"✓";position:absolute;left:0;color:var(--sage);font-weight:800}
.subj{display:grid;grid-template-columns:auto 1fr auto;gap:6px 10px;align-items:baseline}
.subj b{background:var(--lav);border-radius:8px;padding:0 8px;font-size:.95rem}
.subj span.n{color:var(--mute);font-size:.92rem;white-space:nowrap}
.plans{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:640px){.plans{grid-template-columns:1fr 1fr}}
.plan{background:#fff;border-radius:18px;padding:18px;border:2px solid var(--line);display:flex;flex-direction:column}
.plan.best{border-color:var(--sage);position:relative}
.plan .tag{position:absolute;top:-12px;left:16px;background:var(--sage);color:#fff;border-radius:99px;padding:2px 12px;font-size:.85rem;font-weight:700}
.plan h3{margin:.2em 0;font-size:1.15rem}
.price{font-size:2.2rem;font-weight:800;margin:.1em 0}.price small{font-size:1rem;font-weight:600;color:var(--mute)}
.plan ul{flex:1}
.btn{display:block;text-align:center;background:var(--coral);color:#fff;font-weight:800;font-size:1.1rem;border:0;border-radius:14px;padding:14px 16px;text-decoration:none;cursor:pointer;font-family:inherit;width:100%}
.btn.sage{background:var(--sage)}
.btn.alt{background:var(--sage2);color:var(--sage)}
.btn[disabled]{opacity:.55;cursor:default}
.steps{counter-reset:s;list-style:none;padding:0}.steps li{counter-increment:s;padding-left:2.4em;position:relative;margin:.7em 0}
.steps li::before{content:counter(s);position:absolute;left:0;top:-.05em;width:1.8em;height:1.8em;border-radius:50%;background:var(--coral2);color:var(--coral);font-weight:800;display:flex;align-items:center;justify-content:center}
.samples{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 2px 12px}
.samples img{flex:0 0 72%;height:auto;max-width:300px;scroll-snap-align:start;border-radius:8px;box-shadow:0 3px 12px rgba(0,0,0,.14);background:#fff}
details{background:#fff;border-radius:14px;padding:12px 16px;margin:10px 0}summary{font-weight:700;cursor:pointer}
.note{font-size:.92rem;color:var(--mute)}
footer.site{padding:26px 0 40px;color:var(--mute);font-size:.9rem;text-align:center}
.codebox{font-family:ui-monospace,Menlo,monospace;font-size:clamp(1.05rem,5.6vw,1.55rem);font-weight:800;letter-spacing:.02em;white-space:nowrap;text-align:center;background:var(--sage2);border:2px dashed var(--sage);border-radius:14px;padding:16px 8px;margin:12px 0}
input.code{width:100%;font:inherit;font-size:1.25rem;font-family:ui-monospace,Menlo,monospace;text-transform:uppercase;padding:14px;border-radius:12px;border:2px solid var(--line);margin:8px 0 12px;letter-spacing:.04em}
input.code:focus{outline:none;border-color:var(--sage)}
.err{color:#b3261e;font-weight:700;min-height:1.4em}
.ok{color:var(--sage);font-weight:700}
.center{text-align:center}
.count{display:inline-block;background:var(--coral2);color:#b5482d;font-weight:800;border-radius:10px;padding:4px 12px;margin:2px 0 8px}
.ebook{position:relative;width:100%;height:min(82vh,760px);border:0;border-radius:16px;box-shadow:0 4px 18px rgba(0,0,0,.12);background:#fff;display:block}
.listen{display:flex;gap:12px;align-items:center;background:#fff;border-radius:16px;padding:12px 14px;margin:14px 0;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.listen button{flex:0 0 52px;height:52px;border-radius:50%;border:0;background:var(--sage);color:#fff;font-size:1.3rem;cursor:pointer}
.listen b{display:block}.listen span{font-size:.9rem;color:var(--mute)}
.pain{list-style:none;padding:0;margin:.4em 0}.pain li{padding-left:1.6em;position:relative;margin:.4em 0}
.pain li::before{content:"✗";position:absolute;left:0;color:#c0533a;font-weight:800}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.compare .card{margin:0}.compare h3{margin:0 0 .3em;font-size:1rem}
.close{background:var(--sage);color:#fff;border-radius:18px;padding:22px 18px;margin:26px 0 8px}
.close h2{margin:0 0 .4em;color:#fff}.close p{margin:.3em 0 1em}
.sticky{position:fixed;left:0;right:0;bottom:0;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(244,239,228,.96);box-shadow:0 -2px 12px rgba(0,0,0,.08);display:none;z-index:9}
.sticky.on{display:block}.sticky .btn{max-width:520px;margin:0 auto;padding:12px}
body{padding-bottom:84px}
.listen[hidden],[hidden]{display:none!important}