@font-face{font-family:Fraunces;src:url(/fonts/fraunces-500.woff2) format("woff2");font-weight:500;font-style:normal;font-display:swap}@font-face{font-family:Fraunces;src:url(/fonts/fraunces-700.woff2) format("woff2");font-weight:700;font-style:normal;font-display:swap}@font-face{font-family:IBM Plex Sans;src:url(/fonts/ibm-plex-sans-400.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:IBM Plex Sans;src:url(/fonts/ibm-plex-sans-500.woff2) format("woff2");font-weight:500;font-style:normal;font-display:swap}@font-face{font-family:IBM Plex Sans;src:url(/fonts/ibm-plex-sans-600.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}@font-face{font-family:"Source Serif 4";src:url(/fonts/source-serif-4-400.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:"Source Serif 4";src:url(/fonts/source-serif-4-600.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}:root{--ink:#16324f;--ink-soft:#3a5168;--paper:#f3f6f9;--paper-deep:#e4ebf2;--band:#0f6a6a;--band-deep:#0b5050;--accent:#d9772c;--line:rgba(22,50,79,0.12);--ok:#1f7a4d;--bad:#b42318;--shadow:0 18px 50px rgba(22,50,79,0.08);--radius:14px;--font-brand:"Fraunces",Georgia,serif;--font-body:"Source Serif 4",Georgia,serif;--font-ui:"IBM Plex Sans",system-ui,sans-serif}*{box-sizing:border-box}body,html{margin:0;min-height:100%}body{color:var(--ink);font-family:var(--font-ui);background:radial-gradient(1200px 600px at 10% -10%,rgba(15,106,106,.16),transparent 60%),radial-gradient(900px 500px at 100% 0,rgba(217,119,44,.12),transparent 55%),linear-gradient(180deg,#eef3f7 0,var(--paper) 40%,#f7f9fb 100%)}a{color:var(--band-deep)}button,input{font:inherit}.shell{width:min(1100px,calc(100% - 2rem));margin:0 auto;padding:0 0 3rem}.today{display:grid;grid-gap:1.25rem;gap:1.25rem}.site-header{margin:0 -1rem;padding:1.15rem 1rem 1rem;background:rgba(255,255,255,.42);border-bottom:1px solid var(--line)}.site-header__inner{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:.75rem 1.5rem}.site-header__brand{display:grid;grid-gap:.2rem;gap:.2rem}.brand-link{text-decoration:none;color:inherit}.brand{margin:0;font-family:var(--font-brand);font-size:clamp(1.85rem,4.5vw,2.45rem);font-weight:700;letter-spacing:-.03em;color:var(--band-deep);line-height:1.05}.tagline{margin:0;color:var(--ink-soft);font-size:.92rem}.site-header__aside{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem 1.1rem}.site-header__claim{margin:0;color:var(--ink-soft);font-size:.88rem;max-width:16rem;line-height:1.4}.site-header__link{font-size:.9rem;font-weight:600;color:var(--band-deep);text-decoration:none;border-bottom:1px solid rgba(11,80,80,.35);padding-bottom:.05rem}.site-header__link:hover{border-bottom-color:var(--band-deep)}.workspace{display:grid;grid-template-columns:minmax(200px,260px) minmax(0,1fr);grid-gap:1.35rem;gap:1.35rem;align-items:start;padding:0 .15rem}.rail{display:grid;grid-gap:.55rem;gap:.55rem;position:-webkit-sticky;position:sticky;top:.75rem}.rail__head{display:flex;align-items:center;justify-content:space-between;gap:.75rem}.rail__heading{margin:0;font-family:var(--font-brand);font-size:1.1rem;font-weight:700}.rail__close{display:none;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.85);color:var(--ink-soft);font-size:.8rem;font-weight:600;padding:.3rem .7rem;cursor:pointer}.rail-backdrop,.rail-toggle,.reading__toolbar{display:none}.rail__list{list-style:none;margin:0;padding:0;display:grid;grid-gap:.4rem;gap:.4rem}.rail-filters{display:grid;grid-gap:.45rem;gap:.45rem;margin-bottom:.15rem;padding:.55rem .6rem;border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.72)}.rail-filters__label{margin:0;font-family:var(--font-ui);font-size:.72rem;font-weight:600;letter-spacing:.02em;text-transform:uppercase;color:var(--ink-soft)}.rail-filters__row{display:flex;flex-wrap:wrap;gap:.35rem;max-height:5.5rem;overflow-x:auto;overflow-y:auto;padding-bottom:.15rem;-webkit-overflow-scrolling:touch;scrollbar-width:thin}.rail-filter-chip{-webkit-appearance:none;-moz-appearance:none;appearance:none;flex:0 0 auto;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.7);color:var(--ink-soft);font-family:var(--font-ui);font-size:.72rem;font-weight:600;line-height:1.2;text-transform:lowercase;padding:.28rem .55rem;cursor:pointer;transition:border-color .15s ease,background .15s ease,color .15s ease}.rail-filter-chip:hover{border-color:rgba(15,106,106,.35);color:var(--ink)}.rail-filter-chip.is-active{border-color:var(--band);background:var(--band);color:white}.rail-filters__clear{-webkit-appearance:none;-moz-appearance:none;appearance:none;justify-self:start;border:0;background:transparent;color:var(--band-deep);font-family:var(--font-ui);font-size:.75rem;font-weight:600;padding:0;cursor:pointer;text-decoration:underline;text-underline-offset:.15em}.rail-filters__empty{margin:.25rem 0 0;color:var(--ink-soft);font-size:.85rem}.rail-item{display:grid;grid-gap:.35rem;gap:.35rem;padding:.65rem .7rem;border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.55);text-decoration:none;color:inherit;transition:border-color .15s ease,background .15s ease}.rail-item:hover{border-color:rgba(15,106,106,.35);background:rgba(255,255,255,.8)}.rail-item.is-current{border-color:var(--band);background:rgba(15,106,106,.1);box-shadow:inset 3px 0 0 var(--band)}.rail-item__top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.35rem}.rail-item__top time{font-size:.8rem;color:var(--ink-soft)}.rail-item__badge{font-size:.68rem;font-weight:600;letter-spacing:.02em;color:var(--band-deep);background:rgba(15,106,106,.1);border-radius:999px;padding:.12rem .45rem}.rail-item__title{font-weight:600;line-height:1.35;font-size:.95rem}.rail-item__tags{display:flex;flex-wrap:wrap;gap:.3rem;list-style:none;margin:0;padding:0}.rail-tag{font-size:.72rem;line-height:1.2;text-transform:lowercase;border-radius:999px;padding:.15rem .45rem}.rail-tag--primary{color:white;background:var(--band);font-weight:600}.rail-tag--secondary{color:var(--ink-soft);background:rgba(22,50,79,.06);border:1px solid var(--line)}.reading{display:grid;grid-gap:1.15rem;gap:1.15rem;min-width:0}.meta{gap:.75rem 1rem;align-items:center;color:var(--ink-soft);font-size:.95rem}.meta,.tags{display:flex;flex-wrap:wrap}.tags{gap:.4rem;list-style:none;margin:0;padding:0}.tags li{padding:.2rem .55rem;border:1px solid var(--line);border-radius:999px;font-size:.8rem;text-transform:lowercase;background:rgba(255,255,255,.55);color:var(--ink-soft)}.tags li.is-primary{background:rgba(15,106,106,.12);border-color:rgba(15,106,106,.28);color:var(--band-deep);font-weight:600}.level-switcher{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:.4rem;gap:.4rem}.level-btn{display:grid;grid-gap:.2rem;gap:.2rem;justify-items:start;padding:.6rem .75rem;border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.7);color:var(--ink);cursor:pointer;transition:border-color .15s ease,background .15s ease,transform .15s ease}.level-btn:hover{border-color:rgba(15,106,106,.35)}.level-btn.is-active{background:var(--band);border-color:var(--band);color:white;transform:translateY(-1px)}.level-btn__name{font-weight:600}.level-btn__hint{font-size:.75rem;line-height:1.35;font-weight:400;opacity:.8;text-align:left}.reader{display:grid;grid-gap:1rem;gap:1rem}.reader__toolbar{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center}.speed-control{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--font-ui);color:var(--ink-soft);font-size:.82rem}.speed-control__label{font-weight:600}.speed-control__select{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.85);color:var(--ink);font-family:var(--font-ui);font-size:.82rem;font-weight:600;padding:.35rem 1.6rem .35rem .7rem;cursor:pointer;background-image:linear-gradient(45deg,transparent 50%,var(--ink-soft) 50%),linear-gradient(135deg,var(--ink-soft) 50%,transparent 50%);background-position:calc(100% - 12px) 55%,calc(100% - 7px) 55%;background-size:5px 5px,5px 5px;background-repeat:no-repeat}.speed-control__select:focus-visible{outline:2px solid rgba(15,106,106,.45);outline-offset:2px}.listen-btn,.primary-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;border-radius:999px;padding:.65rem 1.15rem;background:var(--accent);color:white;font-weight:600;cursor:pointer}.listen-btn:disabled,.primary-btn:disabled{opacity:.45;cursor:not-allowed}.reader__hint{margin:0;color:var(--ink-soft);font-size:.9rem}.reader__title{margin:0;font-family:var(--font-body);font-size:clamp(1.55rem,4vw,2rem);line-height:1.25;font-weight:600}.reader__body{font-family:var(--font-body);font-size:1.15rem;line-height:1.75}.reader__paragraph{margin:0;text-align:left}.reader__paragraph+.reader__paragraph{margin-top:1.15rem}.reader__figure{margin:1.15rem 0 1.35rem}.reader__figure+.reader__paragraph{margin-top:.35rem}.reader__paragraph+.reader__figure{margin-top:1.25rem}.reader__image{display:block;width:100%;height:auto;border-radius:12px;background:rgba(15,106,106,.06)}.reader__caption{margin:.45rem .1rem 0;color:var(--ink-soft);font-family:var(--font-ui);font-size:.82rem;line-height:1.45}.reader__ending{margin-top:1.35rem;font-style:italic}.preview-banner{margin:0 0 .85rem;padding:.55rem .8rem;border:1px dashed rgba(15,106,106,.45);border-radius:10px;background:rgba(15,106,106,.08);color:var(--band-deep);font-family:var(--font-ui);font-size:.85rem}.sentence{border:0;color:inherit;font:inherit;line-height:inherit;vertical-align:baseline;cursor:pointer}.sentence,.sentence .w{display:inline;margin:0;padding:0}.sentence .w{border-radius:2px;background-color:transparent;box-decoration-break:clone;-webkit-box-decoration-break:clone}.sentence:hover .w{background-color:rgba(15,106,106,.06)}.sentence .w.spoken,.sentence:hover .w.spoken{background-color:rgba(15,106,106,.18)}.practice{display:grid;grid-gap:.55rem;gap:.55rem;padding-top:.35rem;border-top:1px solid var(--line)}.practice__tabs{display:flex;flex-wrap:wrap;gap:.3rem;border-bottom:1px solid var(--line);padding-bottom:.25rem}.practice__tab{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;background:transparent;color:var(--ink-soft);font-weight:600;padding:.45rem .75rem;border-radius:10px 10px 0 0;cursor:pointer}.practice__tab:hover{color:var(--ink);background:rgba(15,106,106,.06)}.practice__tab.is-active{color:var(--band-deep);background:rgba(15,106,106,.1);box-shadow:inset 0 -2px 0 var(--band)}.practice__cue{margin:0;font-size:.8rem;color:var(--ink-soft);opacity:.85}.practice__panel{min-height:0}.practice__panel[hidden]{display:none}.practice__heading{margin:0;font-family:var(--font-brand);font-size:1.25rem;font-weight:700}.panel{display:grid;grid-gap:.85rem;gap:.85rem}.panel__head{display:grid;grid-gap:.15rem;gap:.15rem}.panel h2{margin:0;font-family:var(--font-brand);font-size:1.25rem;font-weight:700}.muted,.panel__sub{margin:0;color:var(--ink-soft);font-size:.88rem}.vocab-list{list-style:none;margin:0;padding:0;display:grid;grid-gap:.35rem;gap:.35rem}.vocab-item{display:grid;grid-gap:0;gap:0;border-bottom:1px dashed var(--line);padding-bottom:.15rem}.vocab-item:last-child{border-bottom:0}.vocab-item__toggle{display:flex;align-items:center;justify-content:space-between;gap:.75rem;width:100%;margin:0;padding:.45rem 0;border:0;background:transparent;color:inherit;cursor:pointer;text-align:left}.vocab-item__toggle:hover .vocab-item__word{color:var(--band-deep)}.vocab-item__wordline{display:flex;gap:.5rem;align-items:baseline}.vocab-item__word{font-family:var(--font-body);font-size:1.1rem;font-weight:600}.vocab-item__pos{color:var(--ink-soft);font-size:.82rem}.vocab-item__chevron{color:var(--ink-soft);font-size:1rem;line-height:1}.vocab-item__detail{display:grid;grid-gap:.35rem;gap:.35rem;padding:0 0 .65rem}.vocab-item__def{margin:0}.vocab-item__ex{margin:0;color:var(--ink-soft);font-size:.92rem}.vocab-item__ex .label{display:block;font-size:.7rem;letter-spacing:.04em;text-transform:uppercase;margin-bottom:.12rem;color:var(--band-deep)}.quiz{display:grid;grid-gap:1.25rem;gap:1.25rem}.quiz-q{margin:0;padding:0;border:0;display:grid;grid-gap:.65rem;gap:.65rem}.quiz-q legend{padding:0;font-weight:600}.quiz-q__num{color:var(--band-deep)}.quiz-options{display:grid;grid-gap:.45rem;gap:.45rem}.quiz-option{display:flex;gap:.6rem;align-items:flex-start;padding:.7rem .8rem;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.65);cursor:pointer}.quiz-option input{margin-top:.2rem}.quiz-option.is-chosen{border-color:rgba(15,106,106,.45);background:rgba(15,106,106,.08)}.quiz-option.is-correct{border-color:var(--ok);background:rgba(31,122,77,.1)}.quiz-option.is-wrong{border-color:var(--bad);background:rgba(180,35,24,.08)}.quiz-actions{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center}.quiz-score{margin:0;font-weight:600}.subscribe{display:grid;grid-gap:.85rem;gap:.85rem}.subscribe__form{display:grid;grid-gap:.45rem;gap:.45rem}.subscribe__label{font-size:.85rem;font-weight:600;color:var(--ink-soft)}.subscribe__row{display:flex;flex-wrap:wrap;gap:.55rem}.subscribe__row input{flex:1 1 12rem;min-width:0;padding:.65rem .8rem;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.75);color:var(--ink)}.subscribe__msg{margin:0;color:var(--band-deep);font-size:.95rem}.subscribe__msg.is-error{color:var(--bad)}.source-note{margin:.15rem 0 0;padding:.15rem 0 .35rem;text-align:center;font-size:.72rem;line-height:1.45;color:rgba(58,81,104,.72)}.source-note a{color:rgba(11,80,80,.8);text-decoration:none}.source-note a:hover{text-decoration:underline}.site-footer{margin-top:.75rem;padding:1rem .5rem 0;border-top:1px solid rgba(22,50,79,.08);text-align:center;font-size:.72rem;line-height:1.45;color:rgba(58,81,104,.72)}.site-footer p{margin:0}.site-footer a{color:rgba(11,80,80,.8);text-decoration:none}.site-footer a:hover{text-decoration:underline}.empty-state{padding:3rem 0;display:grid;grid-gap:.75rem;gap:.75rem}.empty-state h1{margin:0;font-family:var(--font-brand)}@media (max-width:768px){.workspace{grid-template-columns:1fr;gap:.85rem}.reading__toolbar{display:block}.rail-toggle{display:inline-flex;align-items:center;gap:.4rem;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid rgba(15,106,106,.28);border-radius:999px;background:rgba(255,255,255,.88);color:var(--band-deep);font-size:.88rem;font-weight:600;padding:.45rem .85rem;cursor:pointer;box-shadow:0 1px 2px rgba(22,50,79,.06)}.rail-toggle__icon{font-size:.95rem;line-height:1}.rail-backdrop{display:block;position:fixed;inset:0;z-index:40;margin:0;padding:0;border:0;background:rgba(22,50,79,.38);opacity:0;pointer-events:none;transition:opacity .2s ease}.rail-backdrop.is-open{opacity:1;pointer-events:auto}.rail{position:fixed;top:0;left:0;bottom:0;z-index:50;width:min(88vw,320px);max-width:320px;margin:0;padding:1rem .85rem 1.5rem;gap:.75rem;overflow-y:auto;overscroll-behavior:contain;background:linear-gradient(180deg,#f7f9fb,#eef3f7);box-shadow:8px 0 28px rgba(22,50,79,.16);transform:translateX(-105%);transition:transform .25s ease;-webkit-overflow-scrolling:touch}.rail.is-open{transform:translateX(0)}.rail__close{display:inline-flex}.site-header{margin:0 -.35rem}.site-header__claim{display:none}.level-switcher{grid-template-columns:1fr}.reader__body{font-size:1.08rem}}@media (max-width:560px){.shell{width:min(100% - 1.25rem,1100px)}}