.prose{max-width:44rem;margin:0 auto;padding:4rem 0 0}.prose h1{margin:0 0 .5rem;font-size:clamp(1.8rem,4.2vw,2.5rem);line-height:1.15;letter-spacing:-.02em}.prose h2{margin:2.75rem 0 .6rem;font-size:1.15rem;letter-spacing:-.01em}.prose h3{margin:1.5rem 0 .4rem;font-size:1rem}.prose p,.prose li,.prose td{color:var(--color-text-secondary)}.prose p+p{margin-top:.85rem}.prose ul,.prose ol{display:grid;gap:.5rem;margin:.85rem 0 0;padding-left:1.2rem}.prose strong{color:var(--color-text)}.prose a{color:var(--color-text);text-underline-offset:2px}.prose table{width:100%;margin-top:1rem;border-collapse:collapse;font-size:.95rem}.prose th,.prose td{padding:.7rem .8rem;border-bottom:1px solid var(--color-outline);text-align:left;vertical-align:top}.prose th{font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted)}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--color-background);color:var(--color-text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:17px;line-height:1.6}.page{max-width:68rem;margin:0 auto;padding:0 1.5rem 4rem}p{margin:0}.hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:3.5rem;align-items:center;padding:4.5rem 0 0}@media(max-width:52rem){.hero{grid-template-columns:1fr;gap:2.5rem;padding-top:3rem}}.eyebrow{margin:0 0 1rem;font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted)}h1{margin:0 0 1.25rem;font-size:clamp(2.1rem,5.4vw,3.3rem);line-height:1.1;letter-spacing:-.02em}.lede{margin:0 0 2rem;font-size:1.15rem;color:var(--color-text-secondary)}.button{display:inline-block;padding:.8rem 1.5rem;border-radius:999px;background:var(--color-primary);color:var(--color-on-primary);font-weight:600;text-decoration:none}.button:hover{filter:brightness(.96)}.button:focus-visible{outline:3px solid var(--color-text);outline-offset:3px}.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:1.25rem}.text-link{color:var(--color-text);font-weight:600;text-underline-offset:2px}.phone-art{display:flex;justify-content:center}.phone{width:100%;max-width:19rem;padding:.7rem;border:1px solid var(--color-outline);border-radius:2.2rem;background:var(--color-background-element);box-shadow:0 20px 45px #2b23201f}.phone-screen{display:flex;flex-direction:column;gap:.6rem;padding:1.35rem 1.25rem 1.25rem;border-radius:1.7rem;background:var(--color-surface2)}.phone-head{display:flex;align-items:baseline;justify-content:space-between;gap:.5rem}.phone-date{font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted)}.phone-words{font-size:.72rem;color:var(--color-text-muted)}.phone-title{font-size:1.1rem;font-weight:700;line-height:1.3}.phone-body{font-size:.94rem;line-height:1.55;color:var(--color-text-secondary)}.phone-action{align-self:flex-start;margin-top:.5rem;padding:.5rem .95rem;border-radius:999px;background:var(--color-primary);color:var(--color-on-primary);font-size:.85rem;font-weight:600}.section{margin-top:5rem;padding-top:3rem;border-top:1px solid var(--color-outline)}.section-title{margin:0 0 .75rem;font-size:clamp(1.4rem,3.4vw,1.9rem);line-height:1.2;letter-spacing:-.01em}.section-lede{margin:0 0 2rem;max-width:44rem;color:var(--color-text-secondary)}.loop{position:relative;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:1rem;margin:0;padding:0;list-style:none}.loop:before{content:"";position:absolute;top:1.1rem;left:8.33%;right:8.33%;height:2px;background:var(--color-outline)}.loop li{position:relative;text-align:center}.loop-dot{position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;width:2.2rem;height:2.2rem;border-radius:999px;background:var(--color-secondary);color:var(--color-on-secondary);font-size:.9rem;font-weight:700}.loop-name{display:block;margin-top:.7rem;font-weight:600}.loop-note{display:block;margin-top:.2rem;font-size:.88rem;color:var(--color-text-secondary)}@media(max-width:46rem){.loop{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem 1rem}.loop:before{display:none}.loop li{text-align:left}}.diff{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:1rem}@media(max-width:52rem){.diff{grid-template-columns:minmax(0,1fr)}}.panel{padding:1.25rem 1.35rem;border:1px solid var(--color-outline);border-radius:16px;background:var(--color-background-element)}.panel-reviewed{background:var(--color-surface2)}.panel-label{margin:0 0 .75rem;font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted)}.diff-arrow{font-size:1.5rem;line-height:1;color:var(--color-text-muted);text-align:center}@media(max-width:52rem){.diff-arrow{transform:rotate(90deg)}}.mark{font-weight:600}.mark-err{color:var(--color-correction-error);border-bottom:2px solid currentColor}.mark-fix{color:var(--color-correction-error);padding:.05rem .3rem;border-radius:6px;background:var(--color-background-selected)}.legend{display:flex;flex-wrap:wrap;gap:1.25rem;margin:1.25rem 0 0;padding:0;list-style:none;font-size:.88rem;color:var(--color-text-secondary)}.legend li{display:flex;align-items:center;gap:.45rem}.dot{flex:none;width:.6rem;height:.6rem;border-radius:999px}.dot-err{background:var(--color-correction-error)}.dot-natural{background:var(--color-correction-naturalness)}.dot-vocab{background:var(--color-correction-vocabulary-gap)}.correction{margin-top:1.5rem;padding:1.35rem;border:1px solid var(--color-outline);border-radius:16px;background:var(--color-surface2)}.correction-head{display:flex;align-items:center;gap:.5rem;margin:0 0 .9rem;font-size:.78rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--color-text-secondary)}.pairs{display:grid;grid-template-columns:repeat(auto-fit,minmax(12rem,1fr));gap:.6rem;margin:0 0 1.1rem}.pairs div{padding:.7rem .85rem;border-radius:12px;background:var(--color-background-element)}.pairs dt{font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted)}.pairs dd{margin:.2rem 0 0;font-weight:600}.why{padding:1rem 1.1rem;border-radius:12px;background:var(--color-background-selected)}.why .why-label{margin-bottom:.35rem;font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted)}.pattern{margin-top:.5rem;font-size:.95rem;color:var(--color-text-secondary)}.pattern strong{color:var(--color-text)}.correction-foot{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-top:1.1rem}.practice-pill{padding:.45rem .95rem;border-radius:999px;background:var(--color-secondary);color:var(--color-on-secondary);font-size:.9rem;font-weight:600}.aside{margin:1.25rem 0 0;font-size:.92rem;color:var(--color-text-muted)}.bars{display:grid;gap:.85rem;margin:0;padding:1.35rem;border:1px solid var(--color-outline);border-radius:16px;background:var(--color-background-element);list-style:none}.bar-row{display:grid;grid-template-columns:9rem minmax(0,1fr) 2rem;align-items:center;gap:.9rem;font-size:.95rem}.bar-track{height:.7rem;border-radius:999px;background:var(--color-background-selected);overflow:hidden}.bar-fill{display:block;height:100%;border-radius:999px;background:var(--color-primary)}.bar-count{text-align:right;font-variant-numeric:tabular-nums;color:var(--color-text-secondary)}@media(max-width:34rem){.bar-row{grid-template-columns:7rem minmax(0,1fr) 2rem;gap:.6rem;font-size:.9rem}}.practice-card{max-width:30rem;padding:1.35rem;border:1px solid var(--color-outline);border-radius:18px;background:var(--color-surface2)}.practice-meta{font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:.6rem}.practice-prompt{font-size:1.05rem;margin-bottom:1rem}.practice-prompt strong{color:var(--color-correction-error);border-bottom:2px solid currentColor;font-weight:600}.options{display:grid;gap:.5rem;margin:0 0 1rem;padding:0;list-style:none}.option{display:flex;align-items:center;gap:.65rem;padding:.7rem .85rem;border:1px solid var(--color-outline);border-radius:12px;background:var(--color-background-element)}.option-ring{flex:none;width:1.05rem;height:1.05rem;border:2px solid var(--color-outline);border-radius:999px}.option-picked{border-color:var(--color-primary);background:var(--color-background-selected)}.option-picked .option-ring{border-color:var(--color-primary);box-shadow:inset 0 0 0 3px var(--color-primary)}.practice-check{display:inline-block;padding:.55rem 1.1rem;border-radius:999px;background:var(--color-primary);color:var(--color-on-primary);font-size:.9rem;font-weight:600}.kinds,.principles{display:grid;grid-template-columns:repeat(auto-fit,minmax(16rem,1fr));gap:1rem;margin:0;padding:0;list-style:none}.kinds li,.principles li{padding:1.1rem 1.25rem;border:1px solid var(--color-outline);border-radius:16px;background:var(--color-background-element)}.kinds strong,.principles h3{display:block;margin:0 0 .35rem;font-size:1rem}.kinds p,.principles p{font-size:.98rem;color:var(--color-text-secondary)}.icon{display:inline-flex;align-items:center;justify-content:center;width:2.4rem;height:2.4rem;margin-bottom:.8rem;border-radius:12px;background:var(--color-secondary);color:var(--color-on-secondary)}.footer{margin-top:5rem;padding-top:3rem;border-top:1px solid var(--color-outline)}.footer-cta{display:flex;flex-direction:column;align-items:center;gap:.9rem;padding-bottom:2.5rem;border-bottom:1px solid var(--color-outline)}.footer-note{margin:0;font-size:.92rem;color:var(--color-text-muted)}.footer-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:.6rem;padding-top:2rem}.footer-nav a{padding:.45rem 1.05rem;border:1px solid var(--color-outline);border-radius:999px;background:var(--color-background-element);color:var(--color-text-secondary);font-size:.85rem;font-weight:600;letter-spacing:.02em;text-decoration:none}.footer-nav a:hover{border-color:var(--color-text-muted);color:var(--color-text)}.footer-nav a:focus-visible{outline:3px solid var(--color-text);outline-offset:2px}
