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cubic-bezier(0.4,0,0.2,1);border:none;outline:none}.btn-primary{background:var(--primary);color:white;box-shadow:0 4px 12px rgba(74,0,224,0.2)}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px) scale(1.02);box-shadow:0 6px 16px rgba(74,0,224,0.35)}.btn-primary:active{transform:translateY(0) scale(0.98)}.btn-secondary{background:var(--secondary);color:white;box-shadow:0 4px 12px rgba(20,180,170,0.2)}.btn-secondary:hover{background:var(--secondary-hover);transform:translateY(-2px) scale(1.02);box-shadow:0 6px 16px rgba(20,180,170,0.35)}.btn-secondary:active{transform:translateY(0) scale(0.98)}body.dark-mode .btn-primary{box-shadow:0 4px 12px rgba(0,0,0,0.4)}body.dark-mode .btn-primary:hover{box-shadow:0 6px 16px rgba(74,0,224,0.2),0 8px 20px rgba(0,0,0,0.5)}body.dark-mode .btn-secondary{box-shadow:0 4px 12px rgba(0,0,0,0.4)}body.dark-mode .btn-secondary:hover{box-shadow:0 6px 16px rgba(20,180,170,0.2),0 8px 20px 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var(--border-color);box-shadow:var(--shadow-lg);text-align:center}.error-icon{font-size:72px;margin-bottom:20px}.error-card h1{font-size:36px;margin-bottom:15px}.error-card p{font-size:18px;color:var(--text-muted);margin-bottom:30px}.error-actions{display:flex;justify-content:center;gap:15px;margin-bottom:40px}.suggested-tables{border-top:1px solid var(--border-color);padding-top:30px}.suggested-tables h3{font-size:18px;margin-bottom:15px;color:var(--text-muted)}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.quick-grid a{background:var(--bg-color);padding:10px;border-radius:var(--radius-md);text-decoration:none;color:var(--text-dark);font-weight:600;transition:all 0.2s ease}.quick-grid a:hover{background:var(--primary-light);color:var(--primary)}.all-tables-container{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:15px}.all-tables-card{background:white;border:1px solid var(--border-color);border-radius:var(--radius-md);padding:20px;text-align:center;text-decoration:none;color:var(--text-dark);font-weight:700;transition:all 0.2s ease;box-shadow:var(--shadow-sm)}.all-tables-card:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:var(--shadow-md);background:var(--primary-light);color:var(--primary)}@media (max-width:992px){.app-container{grid-template-columns:1fr}.sidebar{position:static;order:2}.table-card{grid-template-columns:1fr}.quick-grid{grid-template-columns:1fr 1fr}}@media print{body{background:white !important;color:black !important}body.dark-mode{background:white !important;color:black !important;--bg-color:#ffffff !important;--card-bg:#ffffff !important;--text-dark:#000000 !important;--text-muted:#555555 !important;--border-color:#cccccc !important;--primary-light:#f5edfc !important;--secondary-light:#e6f7f6 !important}body.dark-mode .math-row,body.dark-mode .quiz-option,body.dark-mode .all-tables-card,body.dark-mode 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!important;break-inside:avoid !important}.math-table-title{color:black !important;font-size:20px !important;margin-bottom:15px !important;text-align:center !important}.math-row{box-shadow:none !important;border:1px solid #ccc !important;margin-bottom:6px !important;background:white !important;color:black !important;padding:8px 15px !important;font-size:15px !important}}.header-right{display:flex;align-items:center;gap:15px}.theme-toggle-btn{background:none;border:none;font-size:20px;cursor:pointer;padding:8px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background-color 0.2s ease,transform 0.2s ease;color:var(--text-dark)}.theme-toggle-btn:hover{background-color:var(--primary-light);transform:rotate(15deg) scale(1.1)}.search-toggle-btn{background:none;border:none;font-size:18px;cursor:pointer;padding:8px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background-color 0.2s ease,transform 0.2s 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.icon{width:14px;height:14px;text-decoration:none;font-size:13px;font-weight:500;transition:all 0.15s ease}.quick-nav__pill:hover{background:var(--primary);color:#fff}.trucos-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}.truco-card{background:var(--card-bg);border:1px solid var(--border-color);border-left:4px solid var(--accent);border-radius:var(--radius-md);padding:20px;transition:all 0.18s ease}.truco-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.truco-card__number{display:inline-block;font-family:'Outfit',sans-serif;font-size:32px;font-weight:800;color:var(--primary);line-height:1;margin-bottom:8px}.truco-card__title{font-family:'Outfit',sans-serif;font-size:15px;font-weight:700;color:var(--text-dark);margin-bottom:6px}.truco-card__desc{font-size:13px;color:var(--text-muted);line-height:1.55}.truco-card__link{display:inline-block;margin-top:10px;font-size:13px;color:var(--primary);font-weight:600;text-decoration:none}.truco-card__link:hover{text-decoration:underline}.info-banner{background:linear-gradient(135deg,var(--primary-light) 0%,#fff 100%);border:1px solid var(--primary-light);border-left:4px solid var(--primary);border-radius:var(--radius-md);padding:18px 22px;margin-bottom:24px;font-size:14px;line-height:1.6;color:var(--text-dark)}.info-banner strong{color:var(--primary)}@media (max-width:768px){.hub-hero{padding:32px 20px}.hub-hero__title{font-size:26px}.hub-hero__stats{gap:18px}.hub-section__header{flex-direction:column;align-items:flex-start}.hub-section__title{font-size:22px}}body.dark-mode .axis-card,body.dark-mode .feature-card,body.dark-mode .truco-card,body.dark-mode .quick-nav{background:#1f1f2e;border-color:#2d2d44}body.dark-mode .axis-card:hover,body.dark-mode .feature-card:hover{background:#2a2a40;border-color:var(--primary)}body.dark-mode .axis-card__icon{background:rgba(139,92,246,0.18)}body.dark-mode .quick-nav__pill{background:#2a2a40;color:#e9d5ff}body.dark-mode .info-banner{background:linear-gradient(135deg,rgba(139,92,246,0.12) 0%,#1f1f2e 100%);border-color:rgba(139,92,246,0.3)}.axis-hero{background:linear-gradient(135deg,var(--primary-light) 0%,#fff 100%);border:1px solid var(--primary-light);border-radius:var(--radius-md);padding:18px 22px;margin-bottom:24px}.axis-hero__head{display:flex;align-items:center;gap:14px;margin-bottom:14px;padding-bottom:14px;border-bottom:1px dashed var(--border-color)}.axis-hero__icon{width:44px;height:44px;background:var(--primary);color:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}.axis-hero__eyebrow{font-family:'Outfit',sans-serif;font-size:16px;font-weight:700;color:var(--text-dark);line-height:1.2}.axis-hero__count{font-size:12px;color:var(--text-muted);margin-top:2px}.axis-hero__nav{display:flex;flex-wrap:wrap;gap:8px}.axis-hero__nav .quick-nav__pill--active{background:var(--primary);color:#fff;cursor:default;font-weight:700}body.dark-mode .axis-hero{background:linear-gradient(135deg,rgba(139,92,246,0.12) 0%,#1f1f2e 100%);border-color:rgba(139,92,246,0.3)}.quick-nav__pill--active{background:var(--primary) !important;color:#fff !important;cursor:default;font-weight:700}body.dark-mode .quick-nav__pill--active{background:var(--primary) !important;color:#fff !important}.main-content a:not([class]){color:var(--primary);text-decoration:none;font-weight:600;border-bottom:2px solid var(--primary-light);transition:color 0.2s ease,border-color 0.2s ease}.main-content a:not([class]):hover{color:var(--primary-hover);border-bottom-color:var(--primary-hover)}body.dark-mode .main-content a:not([class]){color:hsl(262,90%,75%);border-bottom-color:hsl(262,50%,30%)}body.dark-mode .main-content a:not([class]):hover{color:hsl(262,90%,85%);border-bottom-color:hsl(262,90%,75%)}.cookie-banner{position:fixed;bottom:0;left:0;right:0;z-index:10000;background:rgba(255,255,255,0.97);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid rgba(91,33,182,0.15);box-shadow:0 -4px 24px rgba(0,0,0,0.08);padding:18px 24px;display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;font-size:0.92rem;line-height:1.5;color:var(--text-dark,#1e293b);transform:translateY(100%);opacity:0;transition:transform 0.4s cubic-bezier(0.16,1,0.3,1),opacity 0.4s ease}.cookie-banner.visible{transform:translateY(0);opacity:1}.cookie-banner__text{flex:1 1 300px;max-width:700px}.cookie-banner__text a{color:var(--primary,#5b21b6);text-decoration:underline;font-weight:500}.cookie-banner__buttons{display:flex;gap:10px;flex-shrink:0}.cookie-banner__btn{padding:10px 22px;border-radius:8px;font-size:0.88rem;font-weight:600;cursor:pointer;border:none;transition:background 0.2s,transform 0.15s;font-family:'Outfit',sans-serif}.cookie-banner__btn:active{transform:scale(0.96)}.cookie-banner__btn--accept{background:var(--primary,#5b21b6);color:white}.cookie-banner__btn--accept:hover{background:var(--primary-hover,#4a1a99)}.cookie-banner__btn--reject{background:transparent;color:var(--text-muted,#6b7280);border:1px solid var(--border-color,#e5e7eb)}.cookie-banner__btn--reject:hover{background:var(--bg-soft,#f8fafc)}body.dark-mode .cookie-banner{background:rgba(30,30,40,0.97);border-top-color:rgba(139,92,246,0.25);box-shadow:0 -4px 24px rgba(0,0,0,0.3);color:#e2e8f0}body.dark-mode .cookie-banner__text a{color:#a78bfa}body.dark-mode .cookie-banner__btn--reject{color:#94a3b8;border-color:#374151}body.dark-mode .cookie-banner__btn--reject:hover{background:#1e293b}@media (max-width:600px){.cookie-banner{padding:14px 16px;gap:12px}.cookie-banner__text{font-size:0.85rem}.cookie-banner__buttons{width:100%}.cookie-banner__btn{flex:1;text-align:center}}.breadcrumb-nav{margin-bottom:24px;padding:10px 18px;background-color:var(--bg-soft);border-radius:var(--radius-md);border:1px solid var(--border-color)}.breadcrumb-list{display:flex;flex-wrap:wrap;list-style:none;padding:0;margin:0;font-family:'Inter',sans-serif;font-size:0.88rem;align-items:center;gap:8px}.breadcrumb-item{display:inline-flex;align-items:center;color:var(--text-muted)}.breadcrumb-item a{color:var(--primary);text-decoration:none;font-weight:500;transition:color 0.2s ease}.breadcrumb-item a:hover{color:var(--primary-hover);text-decoration:underline}.breadcrumb-item.active{color:var(--text-dark);font-weight:600}.breadcrumb-separator{color:var(--text-muted);opacity:0.5;user-select:none;font-weight:300}body.dark-mode .breadcrumb-nav{background-color:#1e1e2d;border-color:rgba(255,255,255,0.08)}body.dark-mode .breadcrumb-item a{color:hsl(262,90%,75%)}body.dark-mode .breadcrumb-item a:hover{color:hsl(262,90%,85%)}body.dark-mode .breadcrumb-item.active{color:#e2e8f0}body.dark-mode .breadcrumb-separator{color:#94a3b8}@media print{.main-header,header,.sidebar,aside,.main-footer,footer,.breadcrumb-nav,.share-fab,#cookie-consent-banner,.cookie-banner,.print-section,.print-btn,button.print-btn,.btn,.quiz-container,.combo-quiz-card,.combined-quiz-title,.quiz-controls-row,.table-images-download-section,.faq-section,.faqs-container,.related-section,.related-tables,.tabla-nav,.context-links{display:none !important}.app-container{display:block !important;width:100% !important;max-width:100% !important;margin:0 !important;padding:0 !important}.main-content{display:block !important;width:100% !important;margin:0 !important;padding:0 !important;gap:0 !important}.content-card{box-shadow:none !important;border:none !important;padding:0 0 20px 0 !important;background:transparent !important;margin-bottom:20px !important}body{background:white !important;color:black !important;font-size:12pt !important}.table-card{display:block !important;width:100% !important;page-break-inside:avoid}.math-table-container{background:white !important;border:2px solid #000000 !important;color:black !important;padding:20px !important;margin-bottom:20px !important;page-break-inside:avoid}.math-table-title{color:black !important;font-size:16pt !important;margin-bottom:15px !important}.math-row{background:white !important;color:black !important;border:1px solid #e5e7eb !important;box-shadow:none !important;page-break-inside:avoid}table.math-rows tr.math-row{background:white !important;color:black !important;border:1px solid #e5e7eb !important;box-shadow:none !important}a{color:black !important;text-decoration:none !important}h1,h2,h3{page-break-after:avoid;page-break-inside:avoid}}table.math-rows[style*="grid"]{display:block !important}table.math-rows[style*="grid"] tbody{display:grid !important;grid-template-columns:repeat(2,1fr) !important;gap:10px !important;width:100% !important}@media (max-width:480px){table.math-rows[style*="grid"] tbody{grid-template-columns:1fr !important}.content-card div[style*="grid"],.related-section div[style*="grid"]{grid-template-columns:1fr !important}}.breadcrumb-nav{margin-bottom:20px}.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;list-style:none;padding:0;margin:0;font-size:14px;gap:8px}.breadcrumb-item{display:inline-flex;align-items:center}.breadcrumb-item a{color:var(--primary);text-decoration:none;font-weight:500}.breadcrumb-item a:hover{text-decoration:underline}.breadcrumb-item.active{color:var(--text-muted)}.breadcrumb-separator{color:var(--text-muted);opacity:0.6;user-select:none}@media (max-width:768px){.breadcrumb-nav{margin-bottom:10px}.breadcrumb-list{font-size:11px;gap:4px;line-height:1.4}.breadcrumb-separator{font-size:10px}.breadcrumb-item{display:inline}}
/* ===== Exercise worksheet (Ficha) — /ejercicios/tabla-del-N pages ===== */
.exercise-card{background:var(--card-bg);border:2px solid var(--border-color);border-radius:12px;padding:24px 28px;max-width:560px;box-shadow:var(--shadow-sm)}
.exercise-row{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px dashed var(--border-color);font-size:17px;font-weight:600;color:var(--text-dark)}
.exercise-row:last-child{border-bottom:none}
.exercise-row>span:first-child{min-width:108px}
.blank-space{display:inline-block;width:72px;height:32px;background:var(--primary-light);border-bottom:2px solid var(--primary);border-radius:6px}
body.dark-mode .exercise-card{background:hsl(222,40%,20%)}
@media print{
.exercise-card{border:2px solid #000;box-shadow:none;max-width:100%;padding:16px 8px}
.exercise-row{font-size:14pt;border-bottom:1px solid #bbb;page-break-inside:avoid}
.blank-space{background:transparent;border-bottom:2px solid #000}
}

/* ===== Ejercicios: inline blanks + soluciones + print-hide (Round 6) ===== */
.inline-blank{display:inline-block;width:44px;height:24px;vertical-align:middle;background:var(--primary-light);border-bottom:2px solid var(--primary);border-radius:4px;margin:0 3px}
.soluciones{background:var(--bg-soft);border-left:4px solid #2ecc71;border-radius:8px;padding:15px 20px;margin:25px 0}
.soluciones summary{cursor:pointer;font-weight:700;color:var(--text-dark)}
.soluciones ul{margin:12px 0 0;padding-left:20px}
body.dark-mode .inline-blank{background:hsl(222,40%,15%);border-bottom-color:hsl(226,60%,60%)}
body.dark-mode .soluciones{background:hsl(222,40%,20%)}
@media print{
.inline-blank{background:transparent;border-bottom:2px solid #000}
.soluciones{display:none !important}
.print-hide{display:none !important}
}