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var(--atlas-s-4);border-radius:var(--atlas-radius);box-shadow:var(--atlas-shadow-lg);align-items:center;gap:var(--atlas-s-3);font-size:var(--atlas-fs-14);max-inline-size:360px;display:flex}.atlas-toast--warm{background:var(--atlas-warm-2);color:#2d1d00}.atlas-toast--wrong{background:var(--atlas-wrong);color:var(--atlas-paper)}.atlas-kbd{block-size:22px;min-inline-size:22px;font-family:var(--atlas-font-mono);font-size:var(--atlas-fs-12);background:var(--atlas-paper-3);border:1px solid var(--atlas-rule);border-radius:var(--atlas-radius-sm);color:var(--atlas-ink-soft);justify-content:center;align-items:center;padding-inline:6px;display:inline-flex}.atlas-skeleton{background:linear-gradient(90deg, var(--atlas-paper-3) 0%, var(--atlas-rule) 50%, var(--atlas-paper-3) 100%);border-radius:var(--atlas-radius-sm);background-size:200% 100%;block-size:1em;animation:1.4s linear infinite atlas-shimmer}@keyframes atlas-shimmer{0%{background-position:200% 0}to{background-position:-200% 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var(--atlas-rule);margin-block-start:auto;padding-block-start:var(--atlas-s-2)}.atlas-recent-card__nudge{background:var(--atlas-warm-2-soft,color-mix(in srgb, var(--atlas-warm-2) 22%, transparent));color:var(--atlas-ink);font-size:var(--atlas-fs-12);letter-spacing:.01em;border-radius:999px;align-items:center;padding:2px 8px;font-weight:600;display:inline-flex}.atlas-browse{justify-content:space-between;align-items:center;gap:var(--atlas-s-6);padding:var(--atlas-s-6);background:var(--atlas-paper-2);border:1px solid var(--atlas-rule);border-radius:var(--atlas-radius);box-shadow:var(--atlas-shadow);display:flex}.atlas-browse__main{min-inline-size:0}.atlas-browse__label{margin:0 0 var(--atlas-s-1);font-family:var(--atlas-font-serif);font-size:var(--atlas-fs-22);color:var(--atlas-ink);font-weight:600;line-height:1.2}.atlas-browse__sub{font-size:var(--atlas-fs-14);color:var(--atlas-ink-soft);margin:0}.atlas-browse__cta{flex-shrink:0;text-decoration:none}.atlas-modes{border-block-end:1px 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var(--atlas-rule);border-radius:var(--atlas-radius);box-shadow:var(--atlas-shadow);padding:var(--atlas-s-6)}.atlas-primary__head{justify-content:space-between;align-items:center;gap:var(--atlas-s-4);margin-block-end:var(--atlas-s-3);display:flex}.atlas-primary__name{font-family:var(--atlas-font-serif);font-size:var(--atlas-fs-22);color:var(--atlas-ink);margin:0;font-weight:600;line-height:1.2}.atlas-primary__pill{font-family:var(--atlas-font-ui);font-size:var(--atlas-fs-12);text-transform:uppercase;letter-spacing:.04em;border:1px solid var(--atlas-rule);color:var(--atlas-ink-soft);background:var(--atlas-paper);border-radius:999px;align-items:center;gap:6px;padding:4px 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var(--atlas-rule);font-family:var(--atlas-font-ui);font-size:var(--atlas-fs-13);color:var(--atlas-ink-soft);cursor:pointer;transition:background var(--atlas-dur-fast) var(--atlas-ease), border-color var(--atlas-dur-fast) var(--atlas-ease), color var(--atlas-dur-fast) var(--atlas-ease);border-radius:999px;padding:4px 12px;font-weight:600}.atlas-chip-btn:hover{border-color:var(--atlas-blue-2);color:var(--atlas-ink)}.atlas-chip-btn--active{background:var(--atlas-blue);border-color:var(--atlas-blue);color:var(--atlas-on-primary)}.atlas-primary__customize-input{border:1px solid var(--atlas-rule);background:var(--atlas-paper);inline-size:80px;font:inherit;color:var(--atlas-ink);border-radius:999px;padding:4px 8px}.atlas-primary__customize-input:focus{outline:2px solid var(--atlas-blue-2);outline-offset:1px}.atlas-primary__start{gap:var(--atlas-s-3);border-block-start:1px solid 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.atlas-mcq__option-marker{background:var(--atlas-wrong);border-color:var(--atlas-wrong)}.atlas-mcq__option-text{flex:auto}.atlas-lesson-card{gap:var(--atlas-s-4);padding:var(--atlas-s-4);background:var(--atlas-paper-2);border:1px solid var(--atlas-rule);border-radius:var(--atlas-radius);color:inherit;transition:border-color var(--atlas-dur-fast) var(--atlas-ease);grid-template-columns:80px 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var(--atlas-s-5);background:var(--atlas-paper-2);color:var(--atlas-ink);border-radius:var(--atlas-radius);border:1px solid var(--atlas-rule);min-block-size:120px;transition:border-color var(--atlas-dur-fast) var(--atlas-ease), transform var(--atlas-dur-fast) var(--atlas-ease);flex-direction:column;text-decoration:none;display:flex}.atlas-library-card:hover{border-color:var(--atlas-ink);transform:translateY(-1px)}.atlas-library-card__code{font-family:var(--atlas-font-mono);font-size:var(--atlas-fs-12);color:var(--atlas-blue);letter-spacing:.04em;font-weight:700}.atlas-library-card__name{font-family:var(--atlas-font-serif);font-size:var(--atlas-fs-18);font-weight:600;line-height:var(--atlas-lh-tight);color:var(--atlas-ink)}.atlas-library-card__blurb{font-size:var(--atlas-fs-13);color:var(--atlas-ink-soft);line-height:var(--atlas-lh-default)}.atlas-chip{background:var(--atlas-paper-3);color:var(--atlas-ink-soft);font-size:var(--atlas-fs-12);cursor:pointer;transition:background 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100%)}.atlas-lesson-path__row:last-child.atlas-lesson-path__row--done .atlas-lesson-path__line{background:linear-gradient(to bottom, var(--atlas-mastery) 0%, var(--atlas-mastery) 36px, transparent 36px, transparent 100%)}.atlas-lesson-path__row:last-child.atlas-lesson-path__row--sub .atlas-lesson-path__line{background:linear-gradient(to bottom, var(--atlas-paper-3) 0%, var(--atlas-paper-3) 18px, transparent 18px, transparent 100%)}.atlas-lesson-path__row:first-child.atlas-lesson-path__row--sub .atlas-lesson-path__line{background:linear-gradient(to bottom, transparent 0%, transparent 18px, var(--atlas-paper-3) 18px, var(--atlas-paper-3) 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