:root{--color-primary: #6366f1;--color-primary-light: #818cf8;--color-primary-dark: #4f46e5;--color-primary-glow: rgba(99, 102, 241, .4);--color-secondary: #06b6d4;--color-secondary-light: #22d3ee;--color-secondary-dark: #0891b2;--color-secondary-glow: rgba(6, 182, 212, .4);--color-accent: #f472b6;--color-accent-light: #f9a8d4;--color-accent-dark: #ec4899;--color-accent-glow: rgba(244, 114, 182, .4);--color-success: #10b981;--color-success-glow: rgba(16, 185, 129, .3);--color-warning: #f59e0b;--color-warning-glow: rgba(245, 158, 11, .3);--color-error: #ef4444;--color-error-glow: rgba(239, 68, 68, .3);--color-bg-primary: #0f172a;--color-bg-secondary: #1e293b;--color-bg-tertiary: #334155;--color-bg-elevated: rgba(30, 41, 59, .8);--color-text-primary: #ffffff;--color-text-secondary: #f1f5f9;--color-text-muted: #cbd5e1;--color-text-inverse: #f8fafc;--color-border: rgba(148, 163, 184, .2);--color-border-light: rgba(148, 163, 184, .1);--color-border-focus: rgba(99, 102, 241, .5);--font-sans: 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translateY(0)}}.order-label{font-size:var(--text-sm);color:var(--color-text-muted);margin-bottom:var(--space-2);text-transform:uppercase;letter-spacing:.1em}.order-fraction{font-size:3rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:flex;flex-direction:column;align-items:center;gap:0;line-height:1}.fraction-numerator{font-size:3rem}.fraction-line{width:3rem;height:4px;background:var(--gradient-primary);border-radius:2px;margin:var(--space-1) 0}.fraction-denominator{font-size:3rem}.order-pizza-icon{margin-top:var(--space-4);font-size:2rem}@media(max-width:480px){.order-bubble{padding:var(--space-4) var(--space-6)}.fraction-numerator,.fraction-denominator{font-size:2.5rem}}.scoreboard{display:flex;justify-content:center;gap:var(--space-6);padding:var(--space-4);background:var(--glass-bg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:var(--radius-2xl);margin-bottom:var(--space-6)}.score-item{display:flex;flex-direction:column;align-items:center;gap:var(--space-1);padding:var(--space-2) var(--space-4)}.score-icon{font-size:1.5rem}.score-value{font-size:var(--text-2xl);font-weight:700;color:var(--color-text-primary)}.score-value.highlight{color:var(--color-primary-light);animation:scorePopIn .3s ease}@keyframes scorePopIn{0%{transform:scale(1)}50%{transform:scale(1.3)}to{transform:scale(1)}}.score-label{font-size:var(--text-xs);color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em}.combo-indicator{position:absolute;top:-10px;right:-10px;background:var(--gradient-secondary);color:#fff;font-size:var(--text-xs);font-weight:700;padding:var(--space-1) var(--space-2);border-radius:var(--radius-full);animation:comboBounce .5s ease infinite}@keyframes comboBounce{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.floating-score{position:absolute;font-size:var(--text-lg);font-weight:700;color:var(--color-primary-light);animation:floatUp 1s ease-out forwards;pointer-events:none}@keyframes floatUp{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(-50px) scale(1.5)}}.level-badge{background:var(--gradient-primary);color:#fff;padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:600}@media(max-width:480px){.scoreboard{gap:var(--space-3);padding:var(--space-3)}.score-item{padding:var(--space-1) var(--space-2)}.score-value{font-size:var(--text-xl)}.score-icon{font-size:1.2rem}}.feedback-overlay{position:fixed;inset:0;background:#000000b3;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);display:flex;justify-content:center;align-items:center;z-index:1000;animation:overlayIn .3s ease}@keyframes overlayIn{0%{opacity:0}to{opacity:1}}.feedback-modal{background:var(--glass-bg);-webkit-backdrop-filter:blur(30px);backdrop-filter:blur(30px);border:2px solid var(--glass-border);border-radius:var(--radius-3xl);padding:var(--space-10);text-align:center;max-width:400px;width:90%;animation:modalIn .4s cubic-bezier(.34,1.56,.64,1)}.feedback-modal.correct{border-color:var(--color-success);box-shadow:0 0 40px #4caf504d}.feedback-modal.incorrect{border-color:var(--color-error);box-shadow:0 0 40px #f443364d}@keyframes modalIn{0%{opacity:0;transform:scale(.8) translateY(20px)}to{opacity:1;transform:scale(1) translateY(0)}}.feedback-icon{font-size:5rem;margin-bottom:var(--space-4)}.feedback-icon.correct{animation:iconCelebrate .6s ease-in-out}.feedback-icon.incorrect{animation:iconShake .5s ease-in-out}@keyframes iconCelebrate{0%,to{transform:scale(1) rotate(0)}25%{transform:scale(1.2) rotate(-10deg)}50%{transform:scale(1.3) rotate(10deg)}75%{transform:scale(1.2) rotate(-5deg)}}@keyframes iconShake{0%,to{transform:translate(0)}20%{transform:translate(-15px)}40%{transform:translate(15px)}60%{transform:translate(-10px)}80%{transform:translate(10px)}}.feedback-title{font-size:var(--text-2xl);font-weight:700;margin-bottom:var(--space-4)}.feedback-title.correct{color:var(--color-success)}.feedback-title.incorrect{color:var(--color-error)}.feedback-explanation{font-size:var(--text-lg);color:var(--color-text-secondary);margin-bottom:var(--space-6);line-height:var(--line-height-relaxed)}.feedback-fraction-visual{display:flex;justify-content:center;align-items:center;gap:var(--space-4);margin-bottom:var(--space-6);font-size:var(--text-3xl);font-weight:700}.feedback-fraction{display:flex;flex-direction:column;align-items:center}.feedback-fraction-line{width:2.5rem;height:3px;background:var(--color-text-primary);margin:var(--space-1) 0}.feedback-equals{color:var(--color-primary-light)}.feedback-score{display:flex;align-items:center;justify-content:center;gap:var(--space-2);font-size:var(--text-xl);color:var(--color-primary-light);margin-bottom:var(--space-6)}.feedback-button{padding:var(--space-4) var(--space-8);font-size:var(--text-lg);font-weight:600;border:none;border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-fast)}.feedback-button.correct{background:var(--gradient-primary);color:#fff}.feedback-button.incorrect{background:var(--color-error);color:#fff}.feedback-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}@media(max-width:480px){.feedback-modal{padding:var(--space-6)}.feedback-icon{font-size:4rem}.feedback-title{font-size:var(--text-xl)}}.pizza-game{padding:var(--space-6);min-height:calc(100vh - 200px)}.pizza-game .container{max-width:900px;margin:0 auto}.game-header{text-align:center;margin-bottom:var(--space-8)}.game-title{font-size:var(--text-4xl);font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-2)}.game-subtitle{font-size:var(--text-lg);color:var(--color-text-secondary)}.game-start-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-16);text-align:center}.start-pizza-icon{font-size:6rem;margin-bottom:var(--space-6);animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0) rotate(-5deg)}50%{transform:translateY(-15px) rotate(5deg)}}.start-description{font-size:var(--text-lg);color:var(--color-text-secondary);max-width:500px;margin-bottom:var(--space-8);line-height:var(--line-height-relaxed)}.pizza-level-select{display:flex;justify-content:center;width:100%;gap:var(--space-4);margin-bottom:var(--space-8)}.pizza-level-button{width:140px;height:60px;display:flex;align-items:center;justify-content:center;padding:0;border:2px solid var(--glass-border);background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius-xl);color:var(--color-text-primary);font-size:var(--text-lg);font-weight:600;cursor:pointer;text-align:center;transition:all var(--transition-fast)}.pizza-level-button:hover{border-color:var(--color-primary);background:var(--glass-bg-light);transform:translateY(-3px)}.pizza-level-button.active{border-color:var(--color-primary);background:var(--gradient-primary);color:#fff}.start-button{padding:var(--space-5) var(--space-12);font-size:var(--text-xl);font-weight:700;background:var(--gradient-primary);color:#fff;border:none;border-radius:var(--radius-2xl);cursor:pointer;transition:all var(--transition-fast);box-shadow:var(--shadow-lg)}.start-button:hover{transform:translateY(-3px) scale(1.02);box-shadow:var(--shadow-xl),var(--shadow-glow)}.game-area{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-8);align-items:start}.customer-section,.pizza-section{display:flex;flex-direction:column;align-items:center;gap:var(--space-6)}.pizza-controls{display:flex;align-items:center;justify-content:center;gap:var(--space-6);width:100%}.selection-info{text-align:center;padding:var(--space-3) var(--space-5);background:var(--glass-bg);border-radius:var(--radius-xl);border:1px solid var(--glass-border)}.selection-count{font-size:var(--text-2xl);font-weight:700;color:var(--color-primary-light)}.selection-label{font-size:var(--text-sm);color:var(--color-text-muted)}.game-actions{display:flex;justify-content:center;gap:var(--space-4)}.serve-button{padding:var(--space-4) var(--space-8);font-size:var(--text-lg);font-weight:700;background:var(--gradient-primary);color:#fff;border:none;border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-fast)}.serve-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-glow)}.serve-button:disabled{opacity:.5;cursor:not-allowed}.reset-button{padding:var(--space-4) var(--space-6);font-size:var(--text-base);font-weight:600;background:transparent;color:var(--color-text-secondary);border:1px solid var(--glass-border);border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-fast)}.reset-button:hover{background:var(--glass-bg);color:var(--color-text-primary)}.game-over-screen{text-align:center;padding:var(--space-12)}.game-over-icon{font-size:5rem;margin-bottom:var(--space-6)}.game-over-title{font-size:var(--text-3xl);font-weight:700;color:var(--color-text-primary);margin-bottom:var(--space-4)}.game-over-stats{display:flex;justify-content:center;gap:var(--space-8);margin-bottom:var(--space-8)}.stat-item{text-align:center}.stat-value{font-size:var(--text-4xl);font-weight:700;color:var(--color-primary-light)}.stat-label{font-size:var(--text-sm);color:var(--color-text-muted)}.play-again-button{padding:var(--space-4) var(--space-8);font-size:var(--text-lg);font-weight:700;background:var(--gradient-primary);color:#fff;border:none;border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-fast)}.play-again-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}@media(max-width:768px){.game-area{grid-template-columns:1fr;gap:var(--space-6)}.customer-section{order:1}.pizza-section{order:2}.level-select{flex-wrap:wrap;justify-content:center}.game-over-stats{flex-wrap:wrap;gap:var(--space-4)}}@media(max-width:480px){.pizza-game{padding:var(--space-4)}.game-title{font-size:var(--text-2xl)}.start-pizza-icon{font-size:4rem}}.memory-card{position:relative;width:100%;min-height:100px;aspect-ratio:1;cursor:pointer;perspective:1000px;-webkit-user-select:none;user-select:none}.memory-card.disabled{pointer-events:none}.memory-card.matched{animation:matchPulse .6s ease-out}@keyframes matchPulse{0%{transform:scale(1)}30%{transform:scale(1.15)}to{transform:scale(1)}}.card-inner{position:relative;width:100%;height:100%;transition:transform .6s cubic-bezier(.4,0,.2,1);transform-style:preserve-3d}.memory-card.flipped .card-inner{transform:rotateY(180deg)}.card-face{position:absolute;width:100%;height:100%;backface-visibility:hidden;border-radius:16px;display:flex;align-items:center;justify-content:center}.card-back{background:linear-gradient(145deg,#7c3aed,#5b21b6,#4c1d95);border:3px solid rgba(255,255,255,.3);box-shadow:0 8px 25px #7c3aed80,0 0 0 1px #ffffff1a inset,0 10px 30px #0003;overflow:hidden}.card-back:before{content:"❓";font-size:2.5rem;opacity:.9;animation:floatIcon 2s ease-in-out infinite}@keyframes floatIcon{0%,to{transform:translateY(0) scale(1)}50%{transform:translateY(-5px) scale(1.05)}}.card-back:after{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(45deg,transparent 30%,rgba(255,255,255,.08) 50%,transparent 70%);animation:shineEffect 3s ease-in-out infinite}@keyframes shineEffect{0%{transform:translate(-100%) rotate(45deg)}to{transform:translate(100%) rotate(45deg)}}.card-front{background:linear-gradient(145deg,#fff,#f8fafc);border:3px solid #a78bfa;transform:rotateY(180deg);padding:1rem;flex-direction:column;gap:.5rem;box-shadow:0 8px 25px #00000026,0 0 0 1px #a78bfa4d inset}.memory-card.matched .card-front{background:linear-gradient(145deg,#d1fae5,#a7f3d0);border-color:#10b981;box-shadow:0 0 30px #10b98166,0 8px 25px #10b9814d,0 0 0 1px #10b98180 inset;animation:successGlow .6s ease-out}@keyframes successGlow{0%{box-shadow:0 0 #10b98100}50%{box-shadow:0 0 50px #10b981cc,0 0 100px #10b98166}to{box-shadow:0 0 30px #10b98166,0 8px 25px #10b9814d}}.memory-card:not(.flipped):not(.matched):hover .card-inner{transform:scale(1.05) rotateY(5deg)}.memory-card:not(.flipped):not(.matched):hover .card-back{box-shadow:0 15px 40px #7c3aed99,0 0 0 2px #fff6 inset}.fraction-display{display:flex;flex-direction:column;align-items:center;font-weight:800;gap:0}.fraction-numerator{font-size:2.5rem;color:#5b21b6;line-height:1;text-shadow:0 2px 4px rgba(91,33,182,.2)}.fraction-line{width:60px;height:4px;background:linear-gradient(90deg,#7c3aed,#5b21b6);margin:6px 0;border-radius:2px;box-shadow:0 2px 4px #7c3aed4d}.fraction-denominator{font-size:2.5rem;color:#5b21b6;line-height:1;text-shadow:0 2px 4px rgba(91,33,182,.2)}.decimal-display{font-size:2.5rem;font-weight:800;color:#059669;text-shadow:0 2px 8px rgba(5,150,105,.2)}.percentage-display{font-size:2.25rem;font-weight:800;color:#d97706;text-shadow:0 2px 8px rgba(217,119,6,.2)}.visual-display{width:85%;height:85%;display:flex;align-items:center;justify-content:center}.visual-display svg{width:100%;height:100%;filter:drop-shadow(0 4px 8px rgba(0,0,0,.1))}.pie-segment-filled{fill:#7c3aed;stroke:#5b21b6;stroke-width:1}.pie-segment-empty{fill:#f3f4f6;stroke:#d1d5db;stroke-width:1}.pie-outline{fill:none;stroke:#5b21b6;stroke-width:2}.bar-segment{stroke:#9ca3af;stroke-width:1}.bar-segment-filled{fill:#7c3aed;stroke:#5b21b6}.bar-segment-empty{fill:#f3f4f6;stroke:#d1d5db}@media(max-width:768px){.memory-card{min-height:80px}.fraction-numerator,.fraction-denominator{font-size:1.75rem}.fraction-line{width:40px;height:3px}.decimal-display{font-size:1.75rem}.percentage-display{font-size:1.5rem}.card-back:before{font-size:2rem}}@media(max-width:480px){.memory-card{min-height:70px}.fraction-numerator,.fraction-denominator{font-size:1.5rem}.decimal-display,.percentage-display{font-size:1.25rem}}.board-container{display:flex;flex-direction:column;align-items:center;gap:1.5rem;width:100%;max-width:700px;margin:0 auto}.board-header{display:flex;justify-content:space-between;align-items:center;width:100%;padding:0 .5rem;gap:1rem;flex-wrap:wrap}.stats-group{display:flex;gap:1rem}.stat-item{display:flex;flex-direction:column;align-items:center;gap:.25rem;background:#fffffff2;padding:.75rem 1.25rem;border-radius:16px;box-shadow:0 8px 25px #00000026,0 0 0 1px #ffffff80 inset;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.stat-icon{font-size:1.5rem}.stat-value{font-size:1.5rem;font-weight:800;color:#5b21b6}.stat-label{font-size:.7rem;color:#6b7280;text-transform:uppercase;letter-spacing:.5px;font-weight:600}.pairs-counter{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.25rem;background:#fffffff2;border-radius:24px;font-weight:700;font-size:1.1rem;color:#5b21b6;box-shadow:0 8px 25px #00000026,0 0 0 1px #ffffff80 inset}.pairs-counter-icon{font-size:1.25rem}.stars-display{display:flex;gap:.25rem;font-size:1.75rem}.star{color:#ffffff4d;transition:all .4s cubic-bezier(.34,1.56,.64,1);filter:drop-shadow(0 2px 4px rgba(0,0,0,.2))}.star.earned{color:#fbbf24;animation:starBounce .6s cubic-bezier(.34,1.56,.64,1);filter:drop-shadow(0 4px 12px rgba(251,191,36,.5))}@keyframes starBounce{0%{transform:scale(0) rotate(-180deg)}60%{transform:scale(1.3) rotate(10deg)}to{transform:scale(1) rotate(0)}}.game-board{display:grid;gap:1rem;padding:1.5rem;background:#ffffff1a;border-radius:24px;box-shadow:inset 0 2px 4px #ffffff1a,0 20px 50px #0003;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);width:100%}.game-board.cols-3{grid-template-columns:repeat(3,1fr);max-width:450px}.game-board.cols-4{grid-template-columns:repeat(4,1fr);max-width:550px}.game-board.cols-5{grid-template-columns:repeat(5,1fr);max-width:650px}.game-board.cols-6{grid-template-columns:repeat(6,1fr);max-width:700px}@media(max-width:768px){.board-container{gap:1rem}.board-header{justify-content:center;gap:.75rem}.game-board{gap:.75rem;padding:1rem}.game-board.cols-5,.game-board.cols-6{grid-template-columns:repeat(4,1fr)}.stat-item{padding:.5rem 1rem}.stat-value{font-size:1.25rem}.stars-display{font-size:1.5rem}}@media(max-width:480px){.game-board{gap:.5rem;padding:.75rem}.game-board.cols-4,.game-board.cols-5,.game-board.cols-6{grid-template-columns:repeat(3,1fr)}.stats-group{gap:.5rem}.stat-item{padding:.4rem .75rem}.stat-value{font-size:1rem}.stat-label{font-size:.6rem}.pairs-counter{padding:.5rem 1rem;font-size:1rem}}.game-over-modal{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:1000;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background:linear-gradient(135deg,#fff,#f8f9fa);border-radius:24px;padding:2.5rem;max-width:420px;width:90%;text-align:center;box-shadow:0 30px 60px #0000004d,0 0 0 1px #ffffff1a;animation:modalSlideIn .4s cubic-bezier(.34,1.56,.64,1)}@keyframes modalSlideIn{0%{opacity:0;transform:scale(.8) translateY(20px)}to{opacity:1;transform:scale(1) translateY(0)}}.modal-icon{font-size:4rem;margin-bottom:1rem;animation:bounce .6s ease-out}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-15px)}}.modal-title{font-size:1.75rem;font-weight:700;color:#4338ca;margin-bottom:.5rem}.modal-stars{display:flex;justify-content:center;gap:.5rem;font-size:2.5rem;margin:1.5rem 0}.modal-star{opacity:.2;transition:all .3s}.modal-star.earned{opacity:1;animation:starPop .5s ease-out var(--delay, 0s) backwards}@keyframes starPop{0%{opacity:0;transform:scale(0) rotate(-20deg)}to{opacity:1;transform:scale(1) rotate(0)}}.modal-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1.5rem 0;padding:1rem;background:#f3f4f6;border-radius:16px}.modal-stat{display:flex;flex-direction:column;gap:.25rem}.modal-stat-value{font-size:1.5rem;font-weight:700;color:#4338ca}.modal-stat-label{font-size:.75rem;color:#6b7280;text-transform:uppercase}.modal-equivalences{margin:1.5rem 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.lab-card.active{background:linear-gradient(135deg,#22d3ee33,#f472b629),#0f172ac2}.ekuazioak-lab .algebra-result-card .math-token.display{overflow-x:auto}.ekuazioak-games .mode-card{min-height:150px;border:1px solid rgba(96,165,250,.28);background:linear-gradient(135deg,#0ea5e92e,#7c3aed24),#0f172ab8;color:var(--color-text-primary);box-shadow:inset 0 1px #ffffff0f}.ekuazioak-games .mode-card:hover{border-color:#38bdf8b8;transform:translateY(-2px)}.ekuazioak-games .mode-card.active{border-color:#22d3ee;background:linear-gradient(135deg,#22d3ee47,#6366f13d),#0f172adb;box-shadow:0 0 0 1px #22d3ee3d,0 18px 42px #0ea5e938}.ekuazioak-games .game-card-icon{display:inline-flex;align-items:center;justify-content:center;min-width:3.25rem;height:3.25rem;padding:0 .7rem;border:1px solid rgba(125,211,252,.36);border-radius:999px;background:#0f172aad;color:#bfdbfe;font-family:"Apple Color Emoji","Segoe UI Emoji","Noto Color Emoji",ui-sans-serif,system-ui,sans-serif;font-size:clamp(1.25rem,1.8vw,1.75rem);font-weight:900;line-height:1;text-shadow:none}.ekuazioak-games .mode-card.active .game-card-icon{border-color:#22d3ee;background:linear-gradient(135deg,#22d3ee47,#6366f13d),#0f172adb;color:var(--color-text-primary)}.ekuazioak-games .game-card-title{color:var(--color-text-primary)}.ekuazioak-games .quiz-option{border-color:#94a3b83d;background:#0f172a9e}.ekuazioak-games .quiz-option:hover{border-color:#38bdf894;background:#1e293bcc}.biosfera-page{width:100%;height:calc(100vh - 86px);background:#0a1a0f}.biosfera-frame{display:block;width:100%;height:100%;border:0;background:#0a1a0f}