:root{--ink:#302600;--site-header-height:60px;--muted:#6b5b26;--paper:#fdfdfb;--panel:#fff;--line:#d8c477;--green:#285f4d;--accent:#806000;--accent-deep:#4b3900;--success:#285f4d;--error:#d97864;--error-ink:#9c3f2d}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);min-height:100vh;color:var(--ink);flex-direction:column;margin:0;font-family:Arial,Helvetica,sans-serif;display:flex}main{flex:1}a{color:inherit}:where(a,button,input,summary):focus-visible{outline:2px solid var(--accent);outline-offset:3px}.site-header{border-bottom:1px solid var(--line);height:var(--site-header-height);z-index:10;background:#fdfdfbf0;flex-shrink:0;justify-content:space-between;align-items:center;gap:18px;padding:9px clamp(20px,5vw,72px);display:flex;position:sticky;top:0;left:0;right:0}.site-footer{border-top:1px solid var(--line);color:var(--muted);text-align:center;justify-content:center;align-items:center;min-height:72px;padding:18px clamp(20px,5vw,72px);line-height:1.5;display:flex}.brand,.nav-links,.hero-actions{align-items:center;display:flex}.brand{gap:10px;font-weight:800;text-decoration:none}.brand-logo{white-space:nowrap;flex:none;gap:8px;height:40px;font-family:Georgia,Times New Roman,serif;font-size:24px;font-weight:700}.brand-logo img{object-fit:contain;flex:0 0 40px;width:40px;height:40px}.brand-mark{background:var(--green);color:#fff;justify-content:center;align-items:center;width:34px;height:34px;display:inline-flex}.nav-links{flex-wrap:wrap;gap:clamp(14px,3vw,34px)}.nav-links a{color:var(--muted);font-size:.95rem;font-weight:700;text-decoration:none}.nav-links a:hover{color:var(--accent-deep)}@media (max-width:600px){:root{--site-header-height:100px}.site-header{flex-direction:column;align-items:flex-start;gap:4px}}.empty-page{min-height:50vh}.section-layout{grid-template-columns:170px minmax(0,1fr);align-items:start;gap:28px;padding:28px clamp(20px,3vw,48px);display:grid}.section-sidebar{top:calc(var(--site-header-height) + 22px);position:sticky}.section-nav{border-right:1px solid var(--line);padding-right:16px}.section-nav a{overflow-wrap:anywhere;padding:10px 8px;font-size:.95rem;line-height:1.5;text-decoration:none;display:block}.section-nav-parent{color:var(--muted)}.section-nav-title{font-weight:700}.section-nav ul{margin:4px 0 0;padding:0 0 0 12px;list-style:none}.section-nav a:hover,.section-nav a[aria-current=page]{color:var(--accent-deep);background:#edf3ef}.section-content{min-width:0}.hero{grid-template-columns:minmax(0,.95fr) minmax(320px,1.2fr);gap:clamp(28px,5vw,70px);min-height:calc(100vh - 72px);padding:clamp(36px,7vw,86px) clamp(20px,5vw,72px) clamp(28px,5vw,54px);display:grid}.hero-copy{align-self:center;max-width:690px}.eyebrow{color:var(--accent);letter-spacing:0;text-transform:uppercase;margin:0 0 14px;font-size:.78rem;font-weight:800}h1,h2,h3,p{margin-top:0}h1{margin-bottom:24px;font-size:clamp(2.6rem,6vw,5.8rem);line-height:.98}h2{font-size:clamp(1.75rem,3vw,2.8rem);line-height:1.05}h3{font-size:1.22rem;line-height:1.25}.hero-text,.subpage-hero p,.lede,.section-note{color:var(--muted);font-size:1.15rem;line-height:1.7}.hero-actions{flex-wrap:wrap;gap:12px;margin-top:34px}.button-primary,.button-secondary,.article-card a,.pair-button{border:1px solid var(--accent);min-height:46px;padding:12px 18px;font-weight:800;text-decoration:none;display:inline-flex}.button-primary{background:var(--green);color:#fff}.button-secondary,.article-card a{color:var(--accent);background:0 0}.hero-image{align-self:stretch;min-height:460px;overflow:hidden}.hero-image img{object-fit:cover;width:100%;height:100%}.section-band,.practice-section,.subpage-hero,.resource-grid{padding:clamp(42px,7vw,90px) clamp(20px,5vw,72px)}.section-page-title{font-size:clamp(1.5rem,3vw,2rem);line-height:1.2}.section-heading{justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px;display:flex}.article-grid,.resource-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.article-card,.resource-card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:24px}.article-meta{color:var(--accent);gap:14px;margin-bottom:18px;font-size:.82rem;font-weight:800;display:flex}.article-card p,.resource-card p,.resource-card span,.article-page p{color:var(--muted);line-height:1.65}.practice-section{background:#edf3ef;grid-template-columns:minmax(0,.75fr) minmax(0,1.25fr);align-items:start;gap:28px;display:grid}.practice-section ol{counter-reset:practice;gap:12px;margin:0;padding:0;list-style:none;display:grid}.practice-section li{border-left:5px solid var(--accent);background:#fff;padding:18px 20px}.subpage-hero{background:#edf3ef;max-width:none}.subpage-hero p,.subpage-hero h1,.article-page{max-width:850px}.resource-card{gap:10px;display:grid}.resource-card strong{color:var(--accent-deep)}.section-note{max-width:360px;margin-bottom:0;font-size:1rem}.confusing-words-page{--line:#ece5ce;--pair-active-line:#cdbb7b;padding-top:24px}.practice-introduction{border:1px solid var(--line);color:var(--ink);background:#f3f7f4;margin-bottom:24px;padding:18px 22px;line-height:1.6}.practice-introduction p{margin-bottom:8px}.practice-introduction p:last-child{margin-bottom:0}.confusing-words-workspace{grid-template-columns:minmax(220px,.38fr) minmax(0,1fr);align-items:start;gap:22px;display:grid}.pair-list{clip-path:inset(var(--pair-list-clip-top,0px) 0 0);align-content:start;gap:10px;display:grid}.pair-button{border-color:var(--line);color:var(--ink);cursor:pointer;text-align:left;background:#fff;border-radius:8px;flex-direction:column;align-items:flex-start;gap:5px}.pair-button small{color:var(--muted);font-weight:700}.pair-button-active{border-color:var(--pair-active-line,var(--accent));box-shadow:inset 5px 0 0 var(--pair-active-line,var(--accent))}.flashcard-shell{top:calc(var(--site-header-height) + 22px);gap:16px;display:grid;position:sticky}.flashcard{border:1px solid var(--line);max-height:calc(100vh - var(--site-header-height) - 44px);background:#fff;border-radius:8px;min-height:320px;padding:clamp(24px,5vw,44px);overflow-y:auto}.practice-dialog{border:1px solid var(--line);color:var(--ink);overscroll-behavior:contain;background:#fff;border-radius:8px;width:calc(100% - 24px);max-width:600px;max-height:calc(100dvh - 24px);padding:0;overflow-y:auto}.practice-dialog::backdrop{background:#00000073}.practice-dialog-toolbar{border-bottom:1px solid var(--line);z-index:1;background:#fff;justify-content:flex-end;padding:10px 12px;display:flex;position:sticky;top:0}.practice-dialog .flashcard{border:0;min-height:0;max-height:none;overflow:visible}.practice-dialog-toolbar button{border:1px solid var(--line);color:var(--accent-deep);cursor:pointer;font:inherit;background:#fff;border-radius:6px;justify-content:center;align-items:center;min-width:44px;min-height:44px;padding:6px;font-size:1.75rem;font-weight:700;line-height:1;display:inline-flex}.flashcard-topline{color:var(--accent);justify-content:flex-start;margin-bottom:30px;font-size:.86rem;font-weight:800;display:flex}.pair-pronunciations{gap:6px;font-size:clamp(.7rem,3vw,.86rem);display:grid}.pair-pronunciations>span{white-space:nowrap}.pronunciation-references{color:var(--muted);margin-top:24px;font-size:.85rem;line-height:1.6}.pronunciation-references a{color:var(--accent-deep);text-underline-offset:3px;text-decoration:underline}.practice-note{border:1px solid var(--line);background:#f8fbf8;border-radius:8px;margin:24px 0 0;padding:14px 16px}.practice-note-image{width:287px;max-width:50%;height:auto;margin-top:24px;display:block}.practice-note summary{color:var(--accent-deep);cursor:pointer;font-weight:800}.practice-note p{color:var(--muted);margin:12px 0 0;line-height:1.6}.question-stack{gap:26px;display:grid}.question-stack-dense{gap:18px}.flashcard-question{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1fr) minmax(190px,260px);align-items:start;gap:18px;padding-bottom:24px;display:grid}.flashcard-question:last-child{border-bottom:2px solid var(--line)}.question-stack-dense .flashcard-question{gap:14px;padding-bottom:18px}.question-line{grid-template-columns:auto minmax(0,1fr);align-items:start;gap:14px;display:grid}.question-status{color:var(--error);background:#fff4f1;border:1px solid #efc1b5;border-radius:999px;justify-content:center;align-items:center;width:36px;height:36px;font-weight:900;display:inline-flex}.correct-status{color:var(--success);background:#edf7f1;border-color:#b8d7c4}.flashcard-sentence{color:var(--ink);margin-bottom:0;font-size:clamp(1.05rem,1.7vw,1.35rem);line-height:1.45}.question-stack-dense .flashcard-sentence{font-size:clamp(1rem,1.5vw,1.2rem)}.selection-row{border:0;place-self:start end;gap:12px;margin:0;padding:0;display:grid}.selection-row legend{clip:rect(0 0 0 0);color:var(--muted);float:left;white-space:nowrap;width:1px;height:1px;padding:0;font-size:.86rem;font-weight:800;position:absolute;overflow:hidden}.selection-options{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.selection-option{border:1px solid var(--line);color:var(--accent-deep);cursor:pointer;background:#fff;border-radius:999px;align-items:center;gap:8px;height:38px;padding:8px 14px;font-weight:800;display:inline-flex}.selection-option input{accent-color:var(--accent)}.selection-option-selected{border-color:var(--accent)}.selection-option-correct{border-color:var(--success);color:var(--success);background:#edf7f1}.selection-option-correct input{accent-color:var(--success)}.selection-option-wrong{border-color:var(--error);color:var(--error-ink);background:#fff4f1}.selection-option-wrong input{accent-color:var(--error-ink)}.article-page{margin:0 auto;padding:clamp(42px,7vw,90px) 20px}.article-date{color:var(--accent);font-weight:800}.article-figure{margin:32px 0}.article-figure img{width:100%;height:auto;display:block}.article-figure figcaption{color:var(--muted);margin-top:10px;font-size:.85rem;line-height:1.6}.article-page a{color:var(--accent-deep);text-underline-offset:3px}.article-body,.article-body p,.article-body a,.article-body figcaption{color:#000}.article-page h1{font-size:clamp(2.4rem,5vw,4.6rem)}.article-page h2{margin-top:34px;font-size:1.55rem}@media (max-width:860px){.section-layout{grid-template-columns:1fr}.section-sidebar{position:static}.section-nav{border-bottom:1px solid var(--line);border-right:0;padding:0 0 16px}.section-heading{flex-direction:column;align-items:flex-start}.brand-logo{font-size:20px}.hero,.practice-section,.confusing-words-workspace{grid-template-columns:1fr}.hero{min-height:auto}.hero-image{min-height:300px}.article-grid,.resource-grid,.flashcard-question{grid-template-columns:1fr}.selection-row{justify-self:stretch}.pair-list{clip-path:none}.flashcard-shell{display:none}}
