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span{color:color-mix(in srgb, var(--foreground) 66%, white)}}.scene-caption span{font-size:.8rem}.dashboard{width:min(1240px,100% - 40px);margin:0 auto;padding:20px 0 56px}.mobile-section-tabs,.mobile-practice-menu{display:none}.exercise-dialog-backdrop{z-index:500;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#0f22187a;place-items:center;padding:18px;display:grid;position:fixed;inset:0}.exercise-dialog{border:2px solid var(--border);background:var(--surface);border-radius:24px;gap:14px;width:min(440px,100%);padding:28px;display:grid;position:relative;box-shadow:0 24px 70px #0a261647}.exercise-dialog h2,.exercise-dialog p{margin:0}.exercise-dialog h2{padding-right:32px;font-size:clamp(1.6rem,6vw,2.4rem)}.exercise-dialog label{color:var(--primary-dark);text-transform:uppercase;gap:5px;font-size:.72rem;font-weight:900;display:grid}.exercise-dialog select{border:1px solid var(--border);background:var(--surface-muted);min-height:48px;color:var(--foreground);font:inherit;border-radius:11px;padding:8px 12px;font-weight:800}.exercise-dialog-close{border:1px solid var(--border);background:var(--surface-muted);width:36px;height:36px;color:var(--foreground);cursor:pointer;border-radius:50%;place-items:center;padding:0;font-size:1.35rem;display:grid;position:absolute;top:12px;right:12px}.hero-panel{border:1px solid var(--border);background:linear-gradient(125deg, var(--surface), var(--primary-soft)), var(--surface);box-shadow:var(--shadow);border-radius:30px;justify-content:space-between;align-items:center;gap:28px;padding:clamp(26px,5vw,48px);display:flex;position:relative;overflow:hidden}.hero-panel:after{border:24px solid var(--primary);width:210px;height:150px;position:absolute;bottom:-52px;right:-40px}@supports (color:color-mix(in lab, red, red)){.hero-panel:after{border:24px solid color-mix(in srgb, var(--primary) 12%, 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h2{letter-spacing:-.025em;margin-top:4px;font-size:clamp(1.15rem,2.5vw,1.55rem)}.mission-copy>p:last-child{color:var(--foreground);margin-top:8px}@supports (color:color-mix(in lab, red, red)){.mission-copy>p:last-child{color:color-mix(in srgb, var(--foreground) 76%, white)}}.mission-copy>p:last-child{font-weight:650;line-height:1.5}.mission-button{min-width:158px}.stats-grid{grid-template-columns:repeat(3,1fr);gap:16px;margin:22px 0;display:grid}.stats-grid article{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);align-items:center;gap:14px;min-height:88px;padding:18px 20px;display:flex;box-shadow:0 8px 22px #1f462512}.stats-grid article>span{font-size:1.65rem}.stats-grid strong{font-size:1.05rem}.stats-grid p{color:var(--foreground);margin-top:3px}@supports (color:color-mix(in lab, red, red)){.stats-grid p{color:color-mix(in srgb, var(--foreground) 62%, white)}}.stats-grid p{font-size:.82rem}.content-grid{grid-template-columns:minmax(260px,.72fr) 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12px;display:grid}.unit-copy{min-width:0}.mastery-battery{border:2px solid var(--primary-dark);background:var(--surface);isolation:isolate;border-radius:7px;place-items:center;width:72px;height:30px;display:grid;position:relative;overflow:visible}.mastery-battery:after{background:var(--primary-dark);content:"";border-radius:0 3px 3px 0;width:4px;height:10px;position:absolute;top:8px;right:-6px}.mastery-battery-fill{z-index:-1;background:var(--primary);border-radius:3px;max-width:calc(100% - 4px);position:absolute;inset:2px auto 2px 2px}@supports (color:color-mix(in lab, red, red)){.mastery-battery-fill{background:color-mix(in srgb, var(--primary) 78%, #73e77b)}}.mastery-battery strong{font-variant-numeric:tabular-nums;font-size:.72rem}.unit-button:hover{background:var(--surface-muted);translate:4px}.unit-button.selected{border-color:var(--primary);background:var(--primary-soft)}.unit-number{background:var(--primary);color:#fff;border-radius:12px;place-items:center;width:40px;height:40px;font-weight:900;display:grid}.unit-number>span{font-size:1.15rem;line-height:1}.unit-number>small{color:#fff!important;margin:-7px 0 0!important;font-size:.55rem!important}.unit-button strong,.unit-button small{display:block}.unit-button strong{font-size:.92rem}.unit-button small{color:var(--foreground);margin-top:4px}@supports (color:color-mix(in lab, red, red)){.unit-button small{color:color-mix(in srgb, var(--foreground) 60%, white)}}.unit-arrow{color:var(--primary-dark);font-size:1.6rem;font-weight:700}.primary-button,.secondary-button{cursor:pointer;border-radius:14px;min-height:46px;padding:10px 18px;font-weight:900}.primary-button{border:2px solid var(--primary-dark);background:var(--primary);box-shadow:0 4px 0 var(--primary-dark);color:#fff;letter-spacing:.01em;text-transform:uppercase}.primary-button:hover:not(:disabled){filter:brightness(1.08);translate:0 -2px}.primary-button:active{box-shadow:0 1px 0 var(--primary-dark);translate:0 3px}.secondary-button{border:1px solid var(--border);background:var(--surface);color:var(--foreground)}.vocabulary-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.vocabulary-card{border:1px solid var(--border);background:var(--surface-muted);border-radius:17px;gap:12px;min-height:116px;padding:17px;transition:translate .16s,box-shadow .16s,border-color .16s;display:grid}.vocabulary-card:hover{border-color:var(--primary);box-shadow:0 9px 18px var(--primary)}@supports (color:color-mix(in lab, red, red)){.vocabulary-card:hover{box-shadow:0 9px 18px color-mix(in srgb, var(--primary) 12%, transparent)}}.vocabulary-card:hover{translate:0 -3px}.vocabulary-card 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select{width:100%}.speech-play-button{cursor:pointer;place-items:center;padding:0;font-size:1rem;display:grid}.speech-error{color:#9a3028;text-align:center;margin:10px 0 0;font-size:.78rem;font-weight:800}.save-error{color:#842d25;text-align:center;background:#fbe3df;border:1px solid #d77468;border-radius:12px;margin:12px 0;padding:10px 13px;font-size:.8rem;font-weight:800}.quiz-form{text-align:left;gap:11px;width:min(100%,520px);margin:28px auto 0;display:grid}.quiz-form label{color:var(--foreground)}@supports (color:color-mix(in lab, red, red)){.quiz-form label{color:color-mix(in srgb, var(--foreground) 72%, white)}}.quiz-form label{font-size:.8rem;font-weight:850}.quiz-form input{border:2px solid var(--border);background:var(--surface);width:100%;min-height:56px;color:var(--foreground);font:inherit;border-radius:14px;padding:10px 15px;font-size:1.15rem;font-weight:750}.quiz-form input:focus{border-color:var(--primary);outline:4px solid var(--primary)}@supports (color:color-mix(in lab, red, red)){.quiz-form input:focus{outline:4px solid color-mix(in srgb, var(--primary) 18%, transparent)}}.answer-feedback{border-radius:12px;gap:3px;padding:11px 14px;display:grid}.answer-feedback.correct{color:#195e27;background:#ddf4df;border:1px solid #51a05b;animation:.42s cubic-bezier(.2,.9,.25,1.25) correct-pop}.answer-feedback.incorrect{color:#842d25;background:#fbe3df;border:1px solid #d67468;animation:.36s incorrect-shake}.answer-feedback span{font-size:.82rem}.answer{margin-top:28px}.answer>strong{color:var(--primary-dark);margin-top:7px;font-size:clamp(1.35rem,4vw,2rem);display:block}.answer-hint{color:var(--foreground);margin-top:24px!important}@supports (color:color-mix(in lab, red, red)){.answer-hint{color:color-mix(in srgb, var(--foreground) 58%, white)}}.example{border-top:1px solid var(--border);color:var(--foreground);margin-top:24px;padding-top:20px}@supports (color:color-mix(in lab, red, red)){.example{color:color-mix(in srgb, var(--foreground) 75%, white)}}.example{line-height:1.55}.example p+p{margin-top:6px;font-size:.9rem}.study-actions{justify-content:space-between;gap:12px;display:flex}footer{color:var(--foreground);padding:0 24px 30px}@supports (color:color-mix(in lab, red, red)){footer{color:color-mix(in srgb, var(--foreground) 56%, white)}}footer{text-align:center;font-size:.78rem}.lesson-shell{background:radial-gradient(circle at 15% 20%, var(--primary), transparent 28%), radial-gradient(circle at 85% 75%, var(--accent), transparent 25%), linear-gradient(var(--world-overlay), var(--world-overlay)), var(--world-background) center / cover fixed;flex-direction:column;min-height:100vh;display:flex}@supports (color:color-mix(in lab, red, red)){.lesson-shell{background:radial-gradient(circle at 15% 20%, color-mix(in srgb, var(--primary) 10%, transparent), transparent 28%), radial-gradient(circle at 85% 75%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 25%), linear-gradient(var(--world-overlay), 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