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;color-scheme:light;--purple-950:#2a174f;--purple-900:#3b246a;--purple-800:#4b2f8f;--purple-700:#5a3fa3;--purple-600:#7254df;--purple-500:#8d73f5;--purple-400:#a78bfa;--purple-300:#c4b5fd;--purple-200:#d9cbff;--purple-100:#f1ebff;--purple-50:#f8f5ff;--purple-text-1:#2a174f;--purple-text-2:#3b246a;--purple-text-3:#4b2f8f;--purple-text-4:#5a3fa3;--navy-950:#0b1220;--navy-900:#0f172a;--navy-800:#172033;--blue-700:#1d4ed8;--blue-600:#2563eb;--blue-100:#dbeafe;--orange-700:#a75409;--orange-100:#ffedd5;--slate-900:#0f172a;--slate-800:#1e293b;--slate-700:#334155;--slate-600:#475569;--slate-500:#64748b;--slate-400:#94a3b8;--slate-300:#cbd5e1;--slate-200:#e2e8f0;--slate-100:#f1f5f9;--slate-50:#f8fafc;--white:#fff;--surface:#fff;--success:#15803d;--success-bg:#dcfce7;--warning:#9a5b08;--warning-bg:#fff7df;--danger:#b42318;--danger-bg:#fef3f2;--radius-lg:24px;--radius:14px;--radius-sm:10px;--shadow-soft:0 10px 30px #48308717;--shadow-admin:0 1px 2px #0f172a0a, 0 10px 28px #0f172a0d;--student-bg:#f8f7fc;--student-card:var(--surface);--student-border:#e8e3f1;--student-sidebar-width:252px;--student-sidebar-width-collapsed:84px;--student-shadow:0 8px 28px #37255f0f;--space-xs:.5rem;--space-sm:.75rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--font-sans:Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-dys-friendly:Verdana, Arial, "Segoe UI", sans-serif}:root[data-theme=dark]{--lightningcss-light: 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#a855f71f;--student-shadow:0 10px 28px #a855f724}:root[data-theme=aventure]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--game-gold:#f4b731;--game-gold-soft:#fde9bf;--game-gold-ink:#7a4d05;--game-ink:#3a2a12;--game-indigo:#241640;--game-indigo-2:#3a2266;--radius-lg:26px;--radius:18px;--radius-sm:12px;--shadow-soft:0 14px 34px #4a301024;--shadow-admin:0 1px 2px #4a30100f, 0 12px 30px #4a30101a;--student-shadow:0 12px 30px #4a301021}[data-theme=aventure] .student-body{--surface:#fdf7ea;--student-card:#fdf7ea;--student-bg:#ece0c4;--student-border:#ddc99f;--slate-500:#6c5c3c;--slate-400:#8a7a56;--slate-100:#f1e7d2;--slate-50:#f7efdd;background:radial-gradient(120% 62% at 50% -12%, #f4b73129, transparent 60%), radial-gradient(80% 55% at 100% 100%, #3a226617, transparent 72%), repeating-linear-gradient(115deg, #785a2806 0 2px, transparent 2px 6px), var(--student-bg)}[data-theme=aventure] 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var(--mode-color) 10%, var(--surface));border-radius:12px;justify-content:space-between;align-items:center;gap:.65rem;margin-top:auto;padding:.75rem .9rem;font-size:.8rem;font-weight:800;line-height:1.4;transition:background .18s;display:flex}.exercise-mode-card__cta svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8px;flex-shrink:0;width:19px;height:19px;transition:transform .18s}.exercise-mode-card:is(:hover,:focus-visible) .exercise-mode-card__cta{background:color-mix(in srgb, var(--mode-color) 18%, var(--surface))}.exercise-mode-card:hover .exercise-mode-card__cta svg{transform:translate(3px)}[data-theme=dark] .exercise-mode-card{--mode-ink:#c9b7ff}[data-theme=dark] .exercise-mode-card--practice{--mode-ink:#86d9be}[data-theme=dark] .exercise-mode-card--oral{--mode-ink:#94ccff}@container (width<=850px){.student-exercise-type-grid{grid-template-columns:minmax(0,1fr);gap:1rem}.exercise-mode-card{grid-template-columns:200px minmax(0,1fr);display:grid}.exercise-mode-card__visual{border-right:1px solid color-mix(in srgb, var(--mode-color) 12%, var(--student-border));border-bottom:0;height:100%}.exercise-mode-card__body{padding:1.2rem}}@container (width<=500px){.exercise-mode-card{grid-template-columns:minmax(0,1fr)}.exercise-mode-card__visual{border-right:0;border-bottom:1px solid color-mix(in srgb, var(--mode-color) 12%, var(--student-border));height:130px}.exercise-mode-card__body{padding:1.1rem}}@media (prefers-reduced-motion:reduce){.exercise-mode-card,.exercise-mode-card__cta,.exercise-mode-card__cta svg{transition:none}.exercise-mode-card:hover,.exercise-mode-card:hover .exercise-mode-card__cta svg{transform:none}}.student-exercise-subject{border:1px solid var(--student-border);background:var(--surface);box-shadow:var(--student-shadow);border-radius:24px;overflow:hidden}.student-exercise-subject__head{border-bottom:1px solid var(--student-border);background:linear-gradient(112deg, color-mix(in srgb, var(--accent-bg,var(--purple-100)) 52%, var(--surface)), var(--surface) 70%);align-items:flex-start;gap:.9rem;padding:clamp(1.1rem,3vw,1.5rem);display:flex}.student-exercise-subject__icon{width:52px;height:52px;color:var(--accent-dark,var(--purple-text-3));background:var(--accent-bg,var(--purple-100));box-shadow:0 9px 20px color-mix(in srgb, var(--accent,var(--purple-600)) 16%, transparent);border-radius:16px;flex:none;place-items:center;font-size:1.3rem;font-weight:900;display:grid}.student-exercise-subject__icon svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.7px;width:26px;height:26px}.student-exercise-subject__head .eyebrow{margin:0 0 .12rem;font-size:.6rem;display:block}.student-exercise-subject__head h2{color:var(--purple-text-1);letter-spacing:-.03em;margin:0;font-size:clamp(1.15rem,3vw,1.5rem)}.student-exercise-subject__head p{color:var(--slate-500);margin:.25rem 0 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