@layer components{.doc-nav{justify-content:space-between;gap:var(--spacing-md);margin-top:var(--spacing-lg);padding-top:var(--spacing-lg);border-top:1px solid var(--color-border-light);max-width:var(--content-width);margin-left:auto;margin-right:auto;display:flex}.nav-btn{align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--color-border);background:var(--color-bg-card);color:var(--color-text-secondary);flex:1;min-width:0;text-decoration:none;display:flex}.nav-btn:hover{border-color:var(--color-primary);color:var(--color-primary)}.doc-nav.single-btn{justify-content:flex-start}.doc-nav.single-btn .nav-btn{flex:none}.nav-label{color:var(--color-text-tertiary);font-size:.68em;display:block}.nav-title{text-overflow:ellipsis;white-space:nowrap;font-size:.82em;font-weight:500;display:block;overflow:hidden}@media (width<=768px){.doc-nav{gap:var(--spacing-sm);flex-direction:row}.doc-nav.single-btn{justify-content:flex-start}.doc-nav.single-btn .nav-btn{flex:none}.nav-btn{padding:var(--spacing-xs) var(--spacing-sm);flex-direction:row}.nav-title{font-size:.75em}}}@layer islands{.quiz-block{margin-top:var(--spacing-xl);padding-top:var(--spacing-lg);border-top:1px solid var(--color-border-light)}.quiz-title{font-family:var(--font-display);margin-bottom:var(--spacing-md);font-size:1.1em;font-weight:700}.quiz-list{gap:var(--spacing-md);flex-direction:column;display:flex}.quiz-item{padding:var(--spacing-md);border:1px solid var(--color-border-light);background:var(--color-bg-card)}.quiz-item.result-correct{border-color:var(--color-success-base)}.quiz-item.result-wrong{border-color:var(--color-danger-base)}.quiz-question{margin-bottom:var(--spacing-sm);font-size:.92em;line-height:1.6}.quiz-number{background:var(--color-primary);width:20px;height:20px;color:var(--color-fg-inverse);flex-shrink:0;justify-content:center;align-items:center;margin-right:6px;font-size:.75em;font-weight:700;display:inline-flex}.quiz-type-badge{background:var(--color-bg-hover);color:var(--color-text-secondary);margin-right:6px;padding:1px 6px;font-size:.75em;display:inline-block}.quiz-answer-area{gap:var(--spacing-sm);margin-top:var(--spacing-sm);align-items:flex-start;display:flex}.quiz-input{border:1px solid var(--color-border);background:var(--color-bg);color:var(--color-text);font-size:.88em;font-family:var(--font-display);outline:none;flex:1;padding:6px 10px}.quiz-input:focus{border-color:var(--color-primary)}.quiz-textarea{border:1px solid var(--color-border);background:var(--color-bg);color:var(--color-text);font-size:.85em;font-family:var(--font-mono,monospace);resize:vertical;outline:none;flex:1;padding:6px 10px}.quiz-textarea:focus{border-color:var(--color-primary)}.quiz-code{width:100%;padding:var(--spacing-sm);background:var(--color-bg);border:1px solid var(--color-border-light);margin-bottom:var(--spacing-xs);font-size:.82em;overflow-x:auto}.quiz-submit-btn{border:1px solid var(--color-border);color:var(--color-text-secondary);cursor:pointer;white-space:nowrap;background:0 0;padding:6px 14px;font-size:.85em}.quiz-submit-btn:hover{border-color:var(--color-primary);color:var(--color-primary)}.quiz-options{margin-top:var(--spacing-sm);flex-direction:column;gap:4px;display:flex}.quiz-option{align-items:center;gap:var(--spacing-sm);border:1px solid var(--color-border-light);background:var(--color-bg);color:var(--color-text);cursor:pointer;text-align:left;transition:color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);padding:6px 10px;font-size:.88em;display:flex}.quiz-option:hover:not(:disabled){border-color:var(--color-primary)}.quiz-option.selected{border-color:var(--color-primary);background:var(--color-bg-hover)}.quiz-option.correct{border-color:var(--color-success-base);background:color-mix(in srgb, var(--color-success-base) 8%, transparent);color:var(--color-success-base)}.quiz-option.wrong{border-color:var(--color-danger-base);background:color-mix(in srgb, var(--color-danger-base) 8%, transparent);color:var(--color-danger-base)}.option-letter{border:1px solid var(--color-border);flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;font-size:.78em;font-weight:600;display:inline-flex}.quiz-feedback{margin-top:var(--spacing-sm);gap:var(--spacing-sm);flex-wrap:wrap;align-items:baseline;font-size:.85em;display:flex}.feedback-correct{color:var(--color-success-base);font-weight:600}.feedback-wrong{color:var(--color-danger-base);font-weight:600}.feedback-answer,.feedback-explanation{color:var(--color-text-secondary)}.feedback-hint{color:var(--color-warning-base)}}@layer pages{.doc-page[data-astro-cid-jw3tkfuh]{padding:var(--spacing-md) var(--spacing-lg) var(--spacing-2xl);width:100%;max-width:var(--content-width,1280px);min-height:100%;margin-inline:auto;position:relative}.doc-page[data-astro-cid-jw3tkfuh]>[data-astro-cid-jw3tkfuh]:not(.geo-bg-decor){z-index:1;position:relative}.prereq-notice[data-astro-cid-jw3tkfuh]{align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);margin-bottom:var(--spacing-md);background:var(--color-bg-card);border:1px solid var(--color-border-light);border-left:3px solid var(--color-warning);color:var(--color-text-secondary);font-size:.85em;display:flex}.prereq-notice[data-astro-cid-jw3tkfuh] svg[data-astro-cid-jw3tkfuh]{color:var(--color-warning);flex-shrink:0}.prereq-notice[data-astro-cid-jw3tkfuh] a[data-astro-cid-jw3tkfuh]{color:var(--module-color,var(--color-primary));text-decoration:none}.prereq-notice[data-astro-cid-jw3tkfuh] a[data-astro-cid-jw3tkfuh]:hover{text-decoration:underline}.doc-header[data-astro-cid-jw3tkfuh]{margin-bottom:var(--spacing-lg);padding-bottom:var(--spacing-lg);border-bottom:1px solid var(--color-border-light)}.doc-title-row[data-astro-cid-jw3tkfuh]{z-index:20;background:var(--color-bg);justify-content:space-between;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) 0;border-bottom:1px solid var(--color-border-light);margin-bottom:var(--spacing-sm);display:flex;position:sticky;top:0}.doc-header[data-astro-cid-jw3tkfuh]{margin-bottom:var(--spacing-xl)}.doc-title-row[data-astro-cid-jw3tkfuh] .doc-title[data-astro-cid-jw3tkfuh]{margin-bottom:0}.doc-title[data-astro-cid-jw3tkfuh]{margin-bottom:var(--spacing-sm);font-size:1.6em;line-height:1.3}.doc-meta[data-astro-cid-jw3tkfuh]{align-items:center;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm);flex-wrap:wrap;display:flex}.doc-meta-item[data-astro-cid-jw3tkfuh]{font-family:var(--font-display);color:var(--color-text-tertiary);align-items:center;gap:4px;font-size:.78em;display:inline-flex}.doc-difficulty[data-astro-cid-jw3tkfuh]{letter-spacing:.02em;border-radius:3px;padding:2px 8px;font-weight:500}.diff-beginner[data-astro-cid-jw3tkfuh]{background:color-mix(in srgb, var(--color-success) 15%, var(--color-bg));color:var(--color-success)}.diff-intermediate[data-astro-cid-jw3tkfuh]{background:color-mix(in srgb, var(--color-warning) 15%, var(--color-bg));color:var(--color-warning)}.diff-advanced[data-astro-cid-jw3tkfuh]{background:color-mix(in srgb, var(--color-danger) 15%, var(--color-bg));color:var(--color-danger)}.doc-description[data-astro-cid-jw3tkfuh]{margin-top:var(--spacing-sm);color:var(--color-text-secondary);font-size:.92em;line-height:1.6}.back-to-start-link[data-astro-cid-jw3tkfuh]{margin-top:var(--spacing-lg);font-size:.82em;font-family:var(--font-display);color:var(--color-text-secondary);border:1px solid var(--color-border-light);transition:color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);background:0 0;align-items:center;gap:4px;padding:4px 12px;text-decoration:none;display:inline-flex}.back-to-start-link[data-astro-cid-jw3tkfuh]:hover{color:var(--color-primary);border-color:var(--color-primary);background:var(--color-bg-hover)}@media (width<=768px){.doc-page[data-astro-cid-jw3tkfuh]{padding:var(--spacing-sm) var(--spacing-md) var(--spacing-2xl)}.doc-title[data-astro-cid-jw3tkfuh]{font-size:1.3em}.doc-meta[data-astro-cid-jw3tkfuh]{gap:6px}}}