.olt-root{max-width:1180px;width:100%;box-sizing:border-box;margin:0 auto;padding:8px 20px 60px;color:var(--ink, #2b2b2b);--bg-elev: #fffdf9}body.theme-dark .olt-root{--bg-elev: #25211c}body.olt-fullscreen #central-home{top:0!important;left:0!important;right:0;bottom:0;padding:0;z-index:60}body.olt-fullscreen #reader-nav,body.olt-fullscreen #reader-nav-tap-zone,body.olt-fullscreen #reader-pull-tab-wrap,body.olt-fullscreen #sidebar,body.olt-fullscreen .sidebar-toggle,body.olt-fullscreen #autoscroll-ctl{display:none!important}.olt-shell{display:flex;flex-direction:column;height:100%}.olt-chrome{position:sticky;top:0;z-index:5;flex:none;display:flex;align-items:center;gap:6px;padding:max(8px,env(safe-area-inset-top)) 12px 8px;border-bottom:1px solid var(--rule, rgba(0,0,0,.12));background:var(--bg, #fffaf2)}.olt-nav-btn{width:38px;height:38px;flex:none;border-radius:9px;border:1px solid var(--rule, rgba(0,0,0,.18));background:var(--bg-elev, #fffdf9);color:var(--ink, #2b2b2b);font-size:1.25rem;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.olt-nav-btn:hover{border-color:var(--accent, #9a6a3a);color:var(--accent, #9a6a3a)}.olt-nav-btn:disabled{opacity:.32;cursor:default}.olt-nav-close{margin-left:auto;font-size:1.05rem}.olt-chrome-title{font-family:var(--serif, Georgia, serif);font-size:.95rem;color:var(--muted, #8a8275);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:0 4px}.olt-content{flex:1 1 auto;overflow-y:auto;-webkit-overflow-scrolling:touch}body.theme-dark .olt-chrome{background:var(--bg, #14110d)}body.theme-dark .olt-nav-btn{background:var(--bg-elev, #25211c)}.olt-loading,.olt-err{color:var(--muted, #8a8275);padding:24px 4px}.olt-err{color:var(--conf-low, #b4452f)}.olt-title{font-family:var(--serif, Georgia, serif);font-size:1.7rem;margin:4px 0 6px}.olt-sub{color:var(--muted, #8a8275);line-height:1.5;margin:0 0 18px;max-width:60ch}.olt-h2{font-family:var(--sans, system-ui);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted, #8a8275);margin:26px 0 10px}.olt-curric-intro{color:var(--muted, #8a8275);line-height:1.55;font-size:.9rem;margin:0 0 14px;max-width:60ch}.olt-tier-starter{border-left:3px solid var(--accent, #9a6a3a)}.olt-back{background:none;border:none;color:var(--accent, #9a6a3a);font:inherit;cursor:pointer;padding:6px 2px;margin-bottom:6px;font-size:.92rem}.olt-back:hover{text-decoration:underline}.olt-track-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:8px 0}@media(max-width:620px){.olt-track-grid{grid-template-columns:1fr}}.olt-track-card{display:flex;align-items:center;gap:14px;text-align:left;padding:18px 16px;border:1px solid var(--rule, rgba(0,0,0,.12));border-radius:14px;background:var(--bg-elev, #fffdf9);cursor:pointer;color:inherit;font:inherit;transition:border-color .12s,transform .12s,box-shadow .12s}.olt-track-card:hover{border-color:var(--accent, #9a6a3a);transform:translateY(-1px);box-shadow:0 6px 18px -10px #1c19174d}.olt-track-glyph{font-size:2.4rem;line-height:1;width:52px;text-align:center;color:var(--accent, #9a6a3a);flex:none}.olt-track-body{display:flex;flex-direction:column;gap:2px;flex:1}.olt-track-name{font-family:var(--serif, Georgia, serif);font-size:1.25rem}.olt-track-stat{color:var(--muted, #8a8275);font-size:.85rem}.olt-track-due{font-size:.82rem;color:var(--conf-high, #4a7c4a);font-weight:600}.olt-track-due-none{color:var(--muted, #8a8275);font-weight:400}.olt-track-go{color:var(--muted, #8a8275);font-size:1.3rem;flex:none}.olt-foot{color:var(--muted, #8a8275);font-size:.8rem;margin-top:22px}.olt-track-head{display:flex;align-items:center;gap:12px;margin:2px 0 4px}.olt-track-head-glyph{font-size:2rem;color:var(--accent, #9a6a3a)}.olt-cta{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:14px 16px;border:1px solid var(--rule, rgba(0,0,0,.12));border-radius:12px;background:var(--bg-elev, #fffdf9);margin:10px 0 4px}.olt-cta-counts{display:flex;gap:8px}.olt-pill{font-size:.8rem;padding:3px 10px;border-radius:999px;font-weight:600}.olt-pill-due{background:color-mix(in srgb,var(--conf-high, #4a7c4a) 16%,transparent);color:var(--conf-high, #4a7c4a)}.olt-pill-new{background:color-mix(in srgb,var(--accent, #9a6a3a) 16%,transparent);color:var(--accent, #9a6a3a)}.olt-btn{font:inherit;cursor:pointer;border-radius:10px;padding:9px 16px;border:1px solid var(--rule, rgba(0,0,0,.18));background:var(--bg-elev, #fffdf9);color:inherit}.olt-btn-primary{background:var(--accent, #9a6a3a);color:#fff;border-color:transparent;font-weight:600}.olt-btn-primary:hover{filter:brightness(1.06)}.olt-btn-ghost{background:none;border-color:var(--rule, rgba(0,0,0,.18))}.olt-btn-ghost:hover{border-color:var(--accent, #9a6a3a)}.olt-tier{display:block;width:100%;text-align:left;cursor:pointer;font:inherit;color:inherit;padding:11px 14px;border:1px solid var(--rule, rgba(0,0,0,.1));border-radius:10px;margin-bottom:8px;background:var(--bg-elev, #fffdf9);transition:border-color .1s,transform .1s}.olt-tier:hover{border-color:var(--accent, #9a6a3a);transform:translateY(-1px)}.olt-tier-locked{opacity:.72}.olt-tier-top{display:flex;justify-content:space-between;align-items:baseline}.olt-tier-top strong{font-family:var(--serif, Georgia, serif);font-size:1.02rem}.olt-tier-frac{color:var(--muted, #8a8275);font-size:.85rem}.olt-lock{color:var(--muted, #8a8275);font-size:.78rem}.olt-tier-rule{color:var(--muted, #8a8275);font-size:.82rem;margin:2px 0 7px}.olt-bar{height:6px;border-radius:4px;background:color-mix(in srgb,var(--ink, #2b2b2b) 10%,transparent);overflow:hidden}.olt-bar>span{display:block;height:100%;background:var(--conf-high, #4a7c4a);border-radius:4px}.olt-lesson-row{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:13px 14px;border:1px solid var(--rule, rgba(0,0,0,.1));border-radius:10px;margin-bottom:8px;background:var(--bg-elev, #fffdf9);cursor:pointer;color:inherit;font:inherit}.olt-lesson-row:hover{border-color:var(--accent, #9a6a3a)}.olt-lesson-ico{font-size:1.5rem;width:34px;text-align:center;color:var(--accent, #9a6a3a)}.olt-lesson-txt{display:flex;flex-direction:column;flex:1}.olt-lesson-txt strong{font-family:var(--serif, Georgia, serif)}.olt-lesson-txt span{color:var(--muted, #8a8275);font-size:.84rem}.olt-lesson-go{color:var(--muted, #8a8275)}.olt-alpha-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px}.olt-alpha-cell{-webkit-appearance:none;appearance:none;font:inherit;color:inherit;cursor:pointer;border:1px solid var(--rule, rgba(0,0,0,.1));border-radius:9px;padding:10px;text-align:center;background:var(--bg-elev, #fffdf9);display:flex;flex-direction:column;gap:2px;align-items:center;transition:background .12s,border-color .12s,transform .06s}.olt-alpha-cell:hover{background:color-mix(in srgb,var(--accent, #9a6a3a) 12%,var(--bg-elev, #fffdf9));border-color:color-mix(in srgb,var(--accent, #9a6a3a) 45%,transparent)}.olt-alpha-cell:active{transform:scale(.97)}.olt-alpha-l{font-size:1.9rem;line-height:1.1}.olt-alpha-name{font-weight:600;font-size:.86rem}.olt-alpha-tr{color:var(--accent, #9a6a3a);font-style:italic;font-size:.85rem}.olt-alpha-snd{color:var(--muted, #8a8275);font-size:.76rem}.olt-alpha-detail-head{display:flex;align-items:center;gap:14px;margin:4px 0 10px}.olt-alpha-detail-l{font-size:3.4rem;line-height:1}.olt-alpha-detail-name{font-size:1.5rem;font-weight:600}.olt-stem-search{width:100%;box-sizing:border-box;padding:9px 12px;border-radius:9px;border:1px solid var(--rule, rgba(0,0,0,.18));background:var(--bg, #fffaf2);color:inherit;font:inherit;margin:6px 0 12px}.olt-stem-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 14px}@media(max-width:720px){.olt-stem-list{grid-template-columns:1fr}}.olt-stem-row{-webkit-appearance:none;appearance:none;font:inherit;cursor:pointer;display:flex;gap:12px;align-items:baseline;text-align:left;width:100%;box-sizing:border-box;padding:12px 16px;border-radius:12px;color:var(--ink, #2b2b2b);background:color-mix(in srgb,var(--muted, #8a8275) 9%,transparent);border:1px solid color-mix(in srgb,var(--rule, rgba(0,0,0,.12)) 65%,transparent);transition:background .12s ease,border-color .12s ease}.olt-stem-row:hover{background:color-mix(in srgb,var(--accent, #9a6a3a) 13%,transparent);border-color:color-mix(in srgb,var(--accent, #9a6a3a) 45%,transparent)}.olt-stem-form{font-size:1.35rem;font-weight:600;color:var(--accent, #9a6a3a);flex:none;min-width:2.8em}.olt-stem-var{color:var(--muted, #8a8275);font-size:.8rem;flex:none}.olt-stem-gloss{color:var(--ink, #2b2b2b);font-size:.98rem;line-height:1.35;flex:1}.olt-stem-expl{color:var(--ink, #2b2b2b);line-height:1.55;max-width:62ch;margin:4px 0 16px}.olt-stemfam{display:flex;flex-direction:column;gap:2px}.olt-stemfam-row{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;padding:8px 4px;border-bottom:1px solid color-mix(in srgb,var(--rule, rgba(0,0,0,.1)) 60%,transparent)}.olt-stemfam-ol{font-size:1.35rem;min-width:3.5em}.olt-stemfam-gloss{color:var(--ink, #2b2b2b);font-size:.92rem;flex:1;min-width:40%}.olt-stemfam-count{color:var(--muted, #8a8275);font-size:.78rem}.olt-stemfam-row .olt-wp-open{background:none;border:none;color:var(--accent, #9a6a3a);cursor:pointer;font:inherit;font-size:.82rem;white-space:nowrap}.olt-stemfam-row .olt-wp-open:hover{text-decoration:underline}.olt-legend{display:flex;flex-wrap:wrap;gap:12px;margin:6px 0 4px}.olt-legend-item{display:inline-flex;align-items:center;gap:5px;font-size:.78rem;color:var(--muted, #8a8275)}.olt-legend-dot{width:11px;height:11px;border-radius:50%;display:inline-block;border:1px solid var(--rule, rgba(0,0,0,.2))}.olt-lv-0{--lv-color: var(--muted, #8a8275);--olt-st: var(--muted, #8a8275)}.olt-lv-1{--lv-color: #c2566f;--olt-st: #c2566f}.olt-lv-2{--lv-color: var(--conf-medium,#b9892f);--olt-st: var(--conf-medium,#b9892f)}.olt-lv-3{--lv-color: var(--conf-high, #4a7c4a);--olt-st: var(--conf-high, #4a7c4a)}.olt-lv-4{--lv-color: #3f6ea5;--olt-st: #3f6ea5}.olt-lv-5{--lv-color: #c79a2e;--olt-st: #c79a2e}.olt-pips{display:inline-flex;gap:2px;vertical-align:middle}.olt-pip{width:6px;height:6px;border-radius:50%;box-sizing:border-box;background:transparent;border:1px solid color-mix(in srgb,var(--ink, #2b2b2b) 26%,transparent)}.olt-pip.on{background:var(--lv-color, var(--muted));border-color:var(--lv-color, var(--muted))}.olt-legend-name{font-size:.78rem;color:var(--muted, #8a8275)}.olt-wp-level{display:flex;align-items:center;gap:7px;margin:6px 0 2px}.olt-wp-level-name{font-size:.84rem;font-weight:600;color:var(--ink, #2b2b2b)}.olt-wbtn .olt-pips{margin-bottom:3px}.mfb-breadcrumb{position:fixed;top:calc(env(safe-area-inset-top,0px) + 64px);left:50%;transform:translate(-50%);z-index:2147483000;display:inline-flex;align-items:stretch;background:#5b6cc4;color:#fff;border-radius:999px;overflow:hidden;box-shadow:0 6px 20px -8px #00000080;font-size:.9rem;max-width:calc(100vw - 24px)}.mfb-breadcrumb-go{-webkit-appearance:none;appearance:none;font:inherit;cursor:pointer;color:#fff;background:transparent;border:none;padding:8px 14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mfb-breadcrumb-go:hover{background:#ffffff24}.mfb-breadcrumb-x{-webkit-appearance:none;appearance:none;font:inherit;cursor:pointer;color:#fff;background:#00000024;border:none;border-left:1px solid rgba(255,255,255,.25);padding:8px 12px}.mfb-breadcrumb-x:hover{background:#00000047}.olt-word-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;margin-top:8px}.olt-wbtn{display:flex;flex-direction:column;gap:1px;text-align:left;cursor:pointer;padding:9px 11px 9px 13px;border:1px solid var(--rule, rgba(0,0,0,.14));border-left:4px solid var(--olt-st, var(--muted));border-radius:9px;background:var(--bg-elev, #fffdf9);color:inherit;font:inherit;transition:border-color .1s,transform .1s,box-shadow .1s}.olt-wbtn:hover{transform:translateY(-1px);box-shadow:0 5px 14px -9px #1c191757;border-color:var(--olt-st, var(--accent))}.olt-wbtn-ol{font-size:1.4rem;line-height:1.25}.olt-wbtn-tr{font-size:.78rem;font-style:italic;color:var(--accent, #9a6a3a)}.olt-wbtn-gloss{font-size:.86rem;color:var(--ink, #2b2b2b)}.olt-wbtn.olt-st-due{position:relative}.olt-wbtn.olt-st-due:after{content:"";position:absolute;top:7px;right:7px;width:8px;height:8px;border-radius:50%;background:var(--conf-low, #b4452f);box-shadow:0 0 0 2px var(--bg-elev, #fffdf9)}.olt-detail-status{display:flex;align-items:center;gap:7px;margin:2px 0 4px;font-size:.85rem;color:var(--muted, #8a8275)}.olt-detail-actions{margin-top:16px;text-align:center}.olt-rev-prog{margin:4px 0 16px}.olt-rev-bar{height:5px;border-radius:3px;background:color-mix(in srgb,var(--ink, #2b2b2b) 10%,transparent);overflow:hidden}.olt-rev-bar>span{display:block;height:100%;background:var(--accent, #9a6a3a);transition:width .2s}.olt-rev-meta{display:flex;align-items:center;gap:10px;margin-top:6px;color:var(--muted, #8a8275);font-size:.82rem}.olt-rev-quit{margin-left:auto;background:none;border:none;color:var(--muted, #8a8275);cursor:pointer;font:inherit;text-decoration:underline}.olt-badge-new{background:color-mix(in srgb,var(--accent, #9a6a3a) 16%,transparent);color:var(--accent, #9a6a3a);padding:1px 8px;border-radius:999px;font-weight:600}.olt-card{text-align:center;padding:18px 8px 6px}.olt-card,.olt-detail-wrap{touch-action:pan-y;will-change:transform}.olt-content{overflow-x:clip}.olt-card-stack{position:relative}.olt-card-stack>.olt-card{position:relative;z-index:1;border-radius:16px;min-height:150px;background:var(--bg-elev, #fffdf9);border:1px solid var(--hairline, rgba(128,120,105,.22));box-shadow:0 6px 16px -10px #1c191780}.olt-card-ghost{position:absolute;left:0;right:0;top:0;z-index:0;min-height:150px;pointer-events:none;border-radius:16px;color:var(--muted, #8a8275);background:color-mix(in srgb,var(--bg-elev, #fffdf9) 80%,var(--muted, #8a8275));border:1px solid color-mix(in srgb,var(--muted, #8a8275) 45%,transparent);box-shadow:0 8px 18px -10px #1c191773;transform:scale(.96) translateY(30px);transform-origin:center top;text-align:center;padding:18px 8px 6px;overflow:hidden}.olt-card-word{font-size:2.8rem;line-height:1.2;margin-bottom:4px}.olt-card-translit{color:var(--accent, #9a6a3a);font-style:italic;font-size:1.05rem;margin-bottom:12px}.olt-card-sub{color:var(--muted, #8a8275);font-size:.9rem;margin-bottom:12px}.olt-skip-row{display:flex;align-items:center;gap:8px;margin:-2px 0 10px 6px;font-size:.82rem;color:var(--muted, #8a8275);cursor:pointer}.olt-skip-row input{width:16px;height:16px;accent-color:var(--accent, #9a6a3a);cursor:pointer}.olt-lesson-row .olt-tier-frac{margin-left:auto;color:var(--muted, #8a8275);font-size:.85rem}.olt-hint-zone{min-height:4px;margin:10px 0}.olt-hint-label{color:var(--muted, #8a8275);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}.olt-hint-noverse{color:var(--muted, #8a8275);font-style:italic}.olt-verse{font-size:1.5rem;line-height:2;padding:6px 4px}.olt-tok{display:inline-block}.olt-tok-target .olt-tok-s{color:var(--accent, #9a6a3a);font-weight:700;border-bottom:2px solid var(--accent, #9a6a3a)}.olt-tok-g{display:block;font-size:.62rem;color:var(--muted, #8a8275);font-family:var(--sans, system-ui);line-height:1.1}.olt-tok-mfb{color:var(--accent, #6a6ab8);font-style:italic}.olt-verse-ref{color:var(--muted, #8a8275);font-size:.82rem;margin-top:4px}.olt-answer{margin:14px 0}.olt-answer-gloss{font-size:1.6rem;font-family:var(--serif, Georgia, serif)}.olt-controls{margin-top:14px}@media(max-width:760px){.olt-session{padding-bottom:124px}.olt-session .olt-controls{position:fixed;left:0;right:0;bottom:0;z-index:60;margin:0;padding:10px max(14px,env(safe-area-inset-left)) calc(10px + env(safe-area-inset-bottom,0px));background:var(--bg-elev, #fffdf9);border-top:1px solid var(--hairline, rgba(128,120,105,.28));box-shadow:0 -6px 20px -12px #1c191780}.olt-session .olt-grades{max-width:none;margin-bottom:8px}.olt-session .olt-grade{padding:14px 6px}.olt-session .olt-btn-reveal{width:100%;padding:15px;font-size:1.02rem}}.olt-hint-row{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:10px}.olt-btn-reveal{display:block;width:100%;max-width:320px;margin:0 auto}.olt-grades{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;max-width:460px;margin:0 auto 10px}.olt-grade{font:inherit;cursor:pointer;border-radius:10px;padding:11px 6px;border:1px solid var(--rule, rgba(0,0,0,.18));background:var(--bg-elev, #fffdf9);color:inherit;font-weight:600}.olt-g-again{border-color:color-mix(in srgb,var(--conf-low, #b4452f) 50%,var(--rule));color:var(--conf-low, #b4452f)}.olt-g-hard{border-color:color-mix(in srgb,var(--conf-medium, #b9892f) 50%,var(--rule))}.olt-g-good{border-color:color-mix(in srgb,var(--conf-high, #4a7c4a) 50%,var(--rule))}.olt-g-easy{border-color:color-mix(in srgb,var(--conf-high, #4a7c4a) 60%,var(--rule));color:var(--conf-high, #4a7c4a)}.olt-grade:hover{filter:brightness(.97);transform:translateY(-1px)}.olt-grade-current{font-weight:800;outline:2px solid var(--accent, #9a6a3a);outline-offset:1px;box-shadow:0 0 0 4px color-mix(in srgb,var(--accent, #9a6a3a) 20%,transparent)}.olt-btn-more{display:block;margin:0 auto}.olt-wordpage{margin-top:14px}.olt-wp{text-align:left;border-top:1px solid var(--rule, rgba(0,0,0,.12));padding-top:14px;max-width:560px;margin:0 auto}.olt-wp-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}.olt-wp-word{font-size:1.7rem}.olt-wp-tr{color:var(--accent, #9a6a3a);font-style:italic}.olt-wp-gloss{font-family:var(--serif, Georgia, serif);font-size:1.1rem}.olt-wp-facts{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}.olt-wp-fact{background:color-mix(in srgb,var(--ink, #2b2b2b) 6%,transparent);border-radius:8px;padding:4px 10px;font-size:.84rem;color:var(--muted, #8a8275)}.olt-wp-fact strong{color:var(--ink, #2b2b2b)}.olt-wp-stem{background:color-mix(in srgb,var(--conf-high, #4a7c4a) 10%,transparent);border-radius:8px;padding:8px 12px;font-size:.9rem;margin:8px 0}.olt-wp-pos{background:color-mix(in srgb,var(--accent, #9a6a3a) 14%,transparent);color:var(--ink, #2b2b2b);font-weight:600}.olt-wp-cover{font-size:.88rem;line-height:1.5;color:var(--ink, #2b2b2b);margin:8px 0;background:color-mix(in srgb,var(--accent, #9a6a3a) 7%,transparent);border-radius:8px;padding:8px 12px}.olt-cross{margin:12px 0 4px;padding:11px 13px;border-radius:12px;text-align:left;background:color-mix(in srgb,var(--accent, #6a6ab8) 8%,transparent);border:1px solid color-mix(in srgb,var(--accent, #6a6ab8) 24%,transparent)}.olt-cross-head{font-size:.74rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted, #8a8275);margin-bottom:3px}.olt-cross-lead{font-size:.84rem;line-height:1.5;color:var(--muted, #8a8275);margin-bottom:7px}.olt-cross-sub{font-size:.88rem;color:var(--ink, #2b2b2b);margin-bottom:7px}.olt-cross-row{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 9px;padding:4px 0}.olt-cross-ol{font-size:1.3rem}.olt-cross-tr{color:var(--accent, #9a6a3a);font-style:italic;font-size:.84rem}.olt-cross-gl{font-size:.9rem;color:var(--ink, #2b2b2b)}.olt-cross-meta{font-size:.8rem;color:var(--muted, 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small{color:var(--muted);font-size:.78rem}.olt-gram-word:hover{border-color:var(--accent);background:var(--accent-soft)}.olt-shelf-tabs{display:inline-flex;gap:4px;margin:6px 0 10px;padding:4px;border:1px solid var(--rule);border-radius:999px}.olt-shelf-tab{border:none;background:none;color:var(--muted);cursor:pointer;padding:7px 16px;border-radius:999px;font-size:.86rem}.olt-shelf-tab.is-on{background:var(--accent);color:#fff}.olt-shelf-tab:not(.is-on):hover{color:var(--accent)}.olt-reading-guide{max-width:680px;margin-top:26px;padding-top:8px;border-top:1px solid var(--rule)}.olt-rg-intro{line-height:1.6;opacity:.92;max-width:640px}.olt-rg-table{display:flex;flex-direction:column;gap:2px;margin:12px 0 18px}.olt-rg-row{display:grid;grid-template-columns:64px 120px 1fr 1.1fr;gap:10px;align-items:center;padding:7px 10px;border-radius:8px}.olt-rg-row:nth-child(odd){background:var(--bg-soft)}.olt-rg-sym{font-size:1.5rem;text-align:center}.olt-rg-name{font-weight:600;font-size:.85rem}.olt-rg-sound{font-size:.85rem;color:var(--muted)}.olt-rg-ex{font-size:.85rem}@media(max-width:640px){.olt-rg-row{grid-template-columns:52px 1fr}.olt-rg-sound,.olt-rg-ex{grid-column:2}}.olt-wotd{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:10px 0 4px;padding:10px 14px;border:1px solid var(--rule);border-radius:12px;background:color-mix(in srgb,var(--accent) 6%,var(--panel-bg))}.olt-wotd-head{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.olt-wotd-word{font-size:1.5rem}.olt-wotd-tr{color:var(--muted);font-style:italic}.olt-wotd-gloss{color:var(--ink)}.olt-wotd-go{margin-left:auto}.olt-rescale{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:8px 0;padding:10px 14px;border-radius:12px;border:1px solid color-mix(in srgb,var(--accent) 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ease}.olt-topic-card:hover{border-color:var(--accent);transform:translateY(-1px)}.olt-topic-glyph{font-size:1.4rem}.olt-topic-label{font-weight:700;color:var(--ink)}.olt-topic-count{font-size:.8rem;color:var(--muted)}.olt-topic-bar{width:100%}.olt-topic-intro{max-width:46em;color:var(--ink);line-height:1.6;margin:4px 0 2px}.olt-cov-list{display:flex;flex-direction:column;gap:4px;margin-top:14px}.olt-cov-row{display:grid;grid-template-columns:minmax(110px,160px) 1fr 46px minmax(90px,auto);gap:10px;align-items:center;padding:8px 12px;border:1px solid var(--rule);border-radius:10px;background:var(--panel-bg);cursor:pointer;text-align:left}.olt-cov-row:hover{border-color:var(--accent)}.olt-cov-name{font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.olt-cov-bar{min-width:60px}.olt-cov-pct{text-align:right;font-variant-numeric:tabular-nums;color:var(--ink)}.olt-cov-hint{font-size:.78rem;color:var(--muted);text-align:right}.olt-cov-gaps{display:flex;flex-wrap:wrap;gap:6px;padding:8px 4px 12px}.olt-cov-chip{display:inline-flex;align-items:center;gap:8px}.olt-cov-n{font-size:.75rem;color:var(--muted)}@media(max-width:640px){.olt-cov-row{grid-template-columns:minmax(90px,120px) 1fr 42px}.olt-cov-hint{display:none}}.olt-hub-sticky{position:sticky;top:0;z-index:8;height:46px;margin:0 -20px -46px;display:flex;align-items:center;gap:10px;padding:0 16px;background:var(--bg, #fffaf2);border-bottom:1px solid var(--rule, rgba(0,0,0,.12));box-shadow:0 2px 8px #0000000f;transform:translateY(-110%);transition:transform .18s ease-out;pointer-events:none}.olt-hub-sticky.is-on{transform:translateY(0);pointer-events:auto}.olt-hub-sticky-name{font-family:var(--serif, Georgia, serif);font-weight:700;font-size:1rem}.olt-hub-sticky-search{margin-left:auto;width:34px;height:34px;border-radius:8px;border:1px solid var(--rule, rgba(0,0,0,.18));background:var(--bg-elev, #fffdf9);color:var(--ink, #2b2b2b);cursor:pointer;font-size:.95rem;display:inline-flex;align-items:center;justify-content:center}.olt-hub-sticky-due{border:none;border-radius:999px;padding:5px 12px;cursor:pointer;font-size:.82rem;font-weight:600;background:var(--conf-low, #b4452f);color:#fff}.olt-hub-sticky-due-none{background:color-mix(in srgb,var(--ink, #2b2b2b) 12%,transparent);color:var(--muted, #8a8275)}body.theme-dark .olt-hub-sticky{background:var(--bg, #14110d);box-shadow:0 2px 8px #00000059}.olt-hub-hero{margin:4px 0 14px}.olt-hub-hero-line{font-family:var(--serif, Georgia, serif);font-size:1.18rem;margin:0 0 4px}.olt-hub-hero-line strong{color:var(--accent, #9a6a3a);font-size:1.3rem}.olt-hub-hero-sub{color:var(--muted, #8a8275);font-size:.9rem;margin:0 0 8px}.olt-hub-hero-bar{height:8px;border-radius:5px;overflow:hidden;background:color-mix(in srgb,var(--ink, #2b2b2b) 10%,transparent)}.olt-hub-hero-bar>span{display:block;height:100%;border-radius:5px;background:linear-gradient(90deg,var(--conf-high, #4a7c4a),var(--accent, #9a6a3a));transition:width .4s ease-out}.olt-hub-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 18px}.olt-hub-card{border:1px solid var(--rule, rgba(0,0,0,.12));border-radius:12px;background:var(--bg-elev, #fffdf9);padding:12px 14px;display:flex;flex-direction:column;gap:8px;align-items:flex-start}.olt-hub-card .olt-btn{margin-top:auto}.olt-hub-card-title{font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted, #8a8275)}.olt-hub-cont-stage{font-family:var(--serif, Georgia, serif);font-weight:700;font-size:1.02rem}.olt-hub-cont-set{color:var(--muted, #8a8275);font-size:.88rem}.olt-hub-cont-pct{color:var(--ink, #2b2b2b);font-weight:600}.olt-hub-card-continue .olt-bar{width:100%}@media(max-width:560px){.olt-hub-cards{grid-template-columns:1fr}}.olt-library-h{margin-bottom:8px}.olt-library-row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.olt-lib-card{display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;font:inherit;color:inherit;cursor:pointer;border:1px solid var(--rule, rgba(0,0,0,.12));border-radius:12px;background:var(--bg-elev, #fffdf9);padding:10px 12px}.olt-lib-card:hover{border-color:var(--accent, #9a6a3a);transform:translateY(-1px)}.olt-lib-ico{font-size:1.25rem;margin-bottom:2px}.olt-lib-card strong{font-family:var(--serif, Georgia, serif);font-size:.94rem;line-height:1.25}.olt-lib-card span:not(.olt-lib-ico){color:var(--muted, #8a8275);font-size:.76rem;line-height:1.3}@media(max-width:720px){.olt-library-row{grid-template-columns:1fr 1fr}}.olt-path{margin-top:24px}.olt-traj{display:flex;align-items:flex-start;gap:0;margin:10px 0 16px;overflow-x:auto;padding-bottom:4px}.olt-traj-node{flex:1 1 0;min-width:74px;display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 4px;cursor:pointer;border:none;background:none;font:inherit;color:inherit;border-radius:10px}.olt-traj-node:hover .olt-traj-dot{border-color:var(--accent, #9a6a3a);color:var(--accent, #9a6a3a)}.olt-traj-dot{width:30px;height:30px;border-radius:50%;flex:none;display:inline-flex;align-items:center;justify-content:center;border:2px solid var(--rule, rgba(0,0,0,.2));background:var(--bg-elev, #fffdf9);font-weight:700;font-size:.9rem}.olt-traj-done .olt-traj-dot{border-color:var(--conf-high, #4a7c4a);color:var(--conf-high, #4a7c4a)}.olt-traj-cur .olt-traj-dot{border-color:var(--accent, #9a6a3a);background:var(--accent, #9a6a3a);color:#fff;box-shadow:0 0 0 4px color-mix(in srgb,var(--accent, #9a6a3a) 22%,transparent)}.olt-traj-lbl{font-size:.76rem;line-height:1.2;text-align:center;font-weight:600}.olt-traj-cur .olt-traj-lbl{color:var(--accent, #9a6a3a)}.olt-traj-arc{font-size:.7rem;color:var(--muted, #8a8275)}.olt-traj-link{flex:0 1 26px;height:2px;margin-top:20px;min-width:8px;background:var(--rule, rgba(0,0,0,.15))}.olt-stage{border:1px solid var(--rule, rgba(0,0,0,.12));border-radius:12px;background:var(--bg-elev, #fffdf9);margin-bottom:12px;overflow:hidden}.olt-stage-current{border-color:color-mix(in srgb,var(--accent, #9a6a3a) 55%,transparent)}.olt-stage-head{display:flex;align-items:center;gap:12px;width:100%;text-align:left;font:inherit;color:inherit;cursor:pointer;border:none;background:none;padding:12px 14px}.olt-stage-head:hover .olt-stage-title{color:var(--accent, #9a6a3a)}.olt-stage-main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;gap:3px}.olt-stage-title{font-family:var(--serif, Georgia, serif);font-weight:700;font-size:1.05rem}.olt-stage-arc{font-weight:600;font-size:.8rem;color:var(--conf-high, #4a7c4a);margin-left:6px;white-space:nowrap}.olt-stage-purpose{color:var(--muted, #8a8275);font-size:.86rem;line-height:1.45}.olt-stage-frac{flex:none;color:var(--muted, #8a8275);font-size:.85rem}.olt-stage-chev{flex:none;color:var(--muted, #8a8275);transition:transform .18s}.olt-stage-open .olt-stage-chev{transform:rotate(180deg)}.olt-stage-body{padding:0 14px 12px}.olt-stage-body .olt-tier,.olt-stage-body .olt-lesson-row{margin-bottom:8px}.olt-stage-note{color:var(--muted, #8a8275);font-size:.8rem;margin:0 14px 10px}.olt-ring{position:relative;width:40px;height:40px;flex:none;display:inline-flex;align-items:center;justify-content:center}.olt-ring svg{width:100%;height:100%;transform:rotate(-90deg)}.olt-ring-bg{fill:none;stroke:color-mix(in srgb,var(--ink, #2b2b2b) 12%,transparent);stroke-width:3.5}.olt-ring-fg{fill:none;stroke:var(--conf-high, #4a7c4a);stroke-width:3.5;stroke-linecap:round}.olt-ring-pct{position:absolute;font-size:.62rem;font-weight:700;color:var(--muted, #8a8275)}.olt-set-mile{margin-left:auto;margin-right:10px;font-size:.82rem;font-weight:600;color:var(--conf-high, #4a7c4a);white-space:nowrap}.olt-set-row .olt-tier-top{gap:8px}.olt-set-row .olt-tier-top strong{margin-right:auto}.olt-set-row .olt-set-mile{margin-left:0}.olt-svgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(52px,64px));gap:8px;padding:0 14px 14px}.olt-svgrid[hidden]{display:none}.olt-svchip{position:relative;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--rule, rgba(0,0,0,.12));border-radius:10px;background:var(--bg, #fffaf2);cursor:pointer;padding:6px 4px;font:inherit;color:inherit}.olt-svchip:hover{border-color:var(--accent, #9a6a3a)}.olt-svchip .olt-ring-chip{width:34px;height:34px}.olt-svchip .olt-ring-pct{font-size:.72rem;color:var(--ink, #2b2b2b)}.olt-svchip-locked{opacity:.72}.olt-svchip-lock{position:absolute;right:2px;bottom:1px;font-size:.62rem}.olt-hsg-head{padding:8px 14px 4px;font-size:.72rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--muted, #8a8275);border-top:1px solid var(--rule, rgba(0,0,0,.08))}.olt-hsg-head:first-child{border-top:none}.olt-stage-head:focus-visible,.olt-set-row:focus-visible,.olt-lesson-row:focus-visible,.olt-lib-card:focus-visible,.olt-svchip:focus-visible,.olt-traj-node:focus-visible,.olt-hub-sticky-search:focus-visible,.olt-hub-sticky-due:focus-visible,.olt-hub-search-row:focus-visible{outline:2px solid var(--accent, #9a6a3a);outline-offset:2px}body.theme-dark .olt-hub-card,body.theme-dark .olt-lib-card,body.theme-dark .olt-stage{background:var(--bg-elev, #25211c)}body.theme-dark .olt-svchip{background:var(--bg, #14110d)}