.parabola-simulation{position:relative;height:100vh}.parabola-canvas{width:100%;height:100%;display:block;cursor:crosshair}.parabola-simulation .back-btn-float{position:absolute;top:var(--space-3);left:var(--space-3);z-index:100;display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;background:var(--dark-surface);border:.0625rem solid var(--dark-border);border-radius:var(--radius-lg);color:var(--dark-text-muted);cursor:pointer;transition:all var(--transition-fast)}.parabola-simulation .back-btn-float:hover{border-color:var(--primary);color:var(--white)}.parabola-selector{display:flex;gap:var(--space-2);flex-wrap:wrap;margin-bottom:var(--space-3)}.parabola-btn{flex:1;min-width:2.5rem;display:flex;align-items:center;justify-content:center;padding:var(--space-2);background:var(--dark-surface-2);border:.125rem solid var(--dark-border);border-radius:var(--radius-md);color:var(--dark-text);font-size:var(--text-sm);font-weight:var(--font-semibold);cursor:pointer;transition:all var(--transition-fast)}.parabola-btn:hover{border-color:var(--primary)}.parabola-btn.selected{background:#e74c3c26}.parabola-btn.add-btn{background:#2ecc7126;border-color:#2ecc7166;color:#2ecc71}.parabola-btn.add-btn:hover{background:#2ecc7140;border-color:#2ecc71}.delete-parabola-btn{display:flex;align-items:center;justify-content:center;gap:var(--space-2);width:100%;padding:var(--space-2) var(--space-3);margin-top:var(--space-2);background:#dc354526;border:.0625rem solid rgba(220,53,69,.4);border-radius:var(--radius-md);color:#dc3545;font-size:var(--text-sm);cursor:pointer;transition:all var(--transition-fast)}.delete-parabola-btn:hover{background:#dc354540;border-color:#dc3545}.three-point-info{text-align:center;padding:var(--space-3);background:var(--dark-surface-2);border-radius:var(--radius-md)}.three-point-info p{margin:0;font-size:var(--text-sm);color:var(--dark-text-muted)}.three-point-info .point-count{font-weight:var(--font-semibold);color:#f39c12;margin-top:var(--space-2)}.preset-btn{width:100%;padding:var(--space-2) var(--space-3);margin-top:var(--space-2);background:#2e7d9933;border:.0625rem solid rgba(46,125,153,.3);border-radius:var(--radius-md);color:var(--primary);font-size:var(--text-xs);cursor:pointer;transition:all var(--transition-fast)}.parabola-simulation .quiz-question{display:flex;flex-direction:column;gap:var(--space-4)}.parabola-simulation .question-text{font-size:var(--text-base);color:var(--white);line-height:1.6}.parabola-simulation .quiz-options{display:flex;flex-direction:column;gap:var(--space-2)}.parabola-simulation .quiz-option{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--dark-surface-2);border:.125rem solid var(--dark-border);border-radius:var(--radius-lg);color:var(--dark-text);font-size:var(--text-sm);cursor:pointer;transition:all var(--transition-fast);text-align:left}.parabola-simulation .quiz-option:hover:not(:disabled){border-color:var(--primary)}.parabola-simulation .quiz-option.correct{border-color:var(--success);background:#28a74526}.parabola-simulation .quiz-option.incorrect{border-color:var(--danger);background:#dc354526}.parabola-simulation .option-letter{display:flex;align-items:center;justify-content:center;width:1.75rem;height:1.75rem;background:var(--dark-surface);border-radius:var(--radius-full);font-weight:var(--font-semibold)}.parabola-simulation .option-text{flex:1}.parabola-simulation .explanation-box{padding:var(--space-4);background:#2e7d991a;border:.0625rem solid rgba(46,125,153,.2);border-radius:var(--radius-lg)}.parabola-simulation .explanation-box p{margin:0 0 var(--space-4);color:var(--dark-text);font-size:var(--text-sm)}.parabola-simulation .quiz-complete{display:flex;flex-direction:column;align-items:center;gap:var(--space-2);text-align:center}.parabola-simulation .quiz-complete svg{color:var(--accent)}.parabola-simulation .info-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:var(--z-modal);padding:var(--space-4)}.parabola-simulation .info-modal{width:100%;max-width:37.5rem;background:var(--dark-surface);border:.0625rem solid var(--dark-border);border-radius:var(--radius-2xl);overflow:hidden}.parabola-simulation .info-modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-6);border-bottom:.0625rem solid var(--dark-border)}.parabola-simulation .info-modal-header h2{font-size:var(--text-xl);color:var(--white)}.parabola-simulation .info-modal-header button{background:none;border:none;color:var(--dark-text-muted);cursor:pointer}.parabola-simulation .info-modal-content{padding:var(--space-6)}.parabola-simulation .info-modal-content section{margin-bottom:var(--space-6)}.parabola-simulation .info-modal-content h3{color:var(--white);margin-bottom:var(--space-3)}.parabola-simulation .info-modal-content p,.parabola-simulation .info-modal-content li{color:var(--dark-text-muted);font-size:var(--text-sm)}.parabola-simulation .formula-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-3)}.parabola-simulation .formula-card{display:flex;flex-direction:column;align-items:center;padding:var(--space-4);background:var(--dark-surface-2);border-radius:var(--radius-lg)}.parabola-simulation .formula-title{font-size:var(--text-xs);color:var(--dark-text-muted)}.parabola-simulation .formula{font-size:var(--text-lg);font-weight:var(--font-semibold);color:var(--primary-light)}.linear-function-simulation{position:relative;height:100vh}.linear-canvas{width:100%;height:100%;display:block;cursor:crosshair}.linear-function-simulation .back-btn-float{position:absolute;top:var(--space-3);left:var(--space-3);z-index:100;display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;background:var(--dark-surface);border:.0625rem solid var(--dark-border);border-radius:var(--radius-lg);color:var(--dark-text-muted);cursor:pointer;transition:all var(--transition-fast)}.linear-function-simulation .back-btn-float:hover{border-color:var(--primary);color:var(--white)}.line-selector{display:flex;gap:var(--space-2);flex-wrap:wrap;margin-bottom:var(--space-3)}.line-btn{flex:1;min-width:2.5rem;display:flex;align-items:center;justify-content:center;padding:var(--space-2);background:var(--dark-surface-2);border:.125rem solid var(--dark-border);border-radius:var(--radius-md);color:var(--dark-text);font-size:var(--text-sm);font-weight:var(--font-semibold);cursor:pointer;transition:all var(--transition-fast)}.line-btn:hover{border-color:var(--primary)}.line-btn.selected{background:#3498db26}.line-btn.add-btn{background:#2ecc7126;border-color:#2ecc7166;color:#2ecc71}.line-btn.add-btn:hover{background:#2ecc7140;border-color:#2ecc71}.delete-line-btn{display:flex;align-items:center;justify-content:center;gap:var(--space-2);width:100%;padding:var(--space-2) var(--space-3);margin-top:var(--space-2);background:#dc354526;border:.0625rem solid rgba(220,53,69,.4);border-radius:var(--radius-md);color:#dc3545;font-size:var(--text-sm);cursor:pointer;transition:all var(--transition-fast)}.delete-line-btn:hover{background:#dc354540;border-color:#dc3545}.two-point-info{text-align:center;padding:var(--space-3);background:var(--dark-surface-2);border-radius:var(--radius-md)}.two-point-info p{margin:0;font-size:var(--text-sm);color:var(--dark-text-muted)}.two-point-info .point-count{font-weight:var(--font-semibold);color:#f39c12;margin-top:var(--space-2)}.preset-buttons{display:flex;flex-direction:column;gap:var(--space-2)}.preset-btn{width:100%;padding:var(--space-2) var(--space-3);background:#2e7d9933;border:.0625rem solid rgba(46,125,153,.3);border-radius:var(--radius-md);color:var(--primary);font-size:var(--text-xs);cursor:pointer;transition:all var(--transition-fast)}.preset-btn:hover{background:#2e7d994d}.linear-function-simulation .quiz-question{display:flex;flex-direction:column;gap:var(--space-4)}.linear-function-simulation .question-text{font-size:var(--text-base);color:var(--white);line-height:1.6}.linear-function-simulation .quiz-options{display:flex;flex-direction:column;gap:var(--space-2)}.linear-function-simulation .quiz-option{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--dark-surface-2);border:.125rem solid var(--dark-border);border-radius:var(--radius-lg);color:var(--dark-text);font-size:var(--text-sm);cursor:pointer;text-align:left;transition:all var(--transition-fast)}.linear-function-simulation .quiz-option:hover:not(:disabled){border-color:var(--primary)}.linear-function-simulation .quiz-option.correct{border-color:var(--success);background:#28a74526}.linear-function-simulation .quiz-option.incorrect{border-color:var(--danger);background:#dc354526}.linear-function-simulation .option-letter{display:flex;align-items:center;justify-content:center;width:1.75rem;height:1.75rem;background:var(--dark-surface);border-radius:var(--radius-full);font-weight:var(--font-semibold)}.linear-function-simulation .option-text{flex:1}.linear-function-simulation .explanation-box{padding:var(--space-4);background:#2e7d991a;border:.0625rem solid rgba(46,125,153,.2);border-radius:var(--radius-lg)}.linear-function-simulation .explanation-box p{margin:0 0 var(--space-4);color:var(--dark-text);font-size:var(--text-sm)}.linear-function-simulation .quiz-complete{display:flex;flex-direction:column;align-items:center;gap:var(--space-2)}.linear-function-simulation .quiz-complete svg{color:var(--accent)}.linear-function-simulation .info-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:var(--z-modal);padding:var(--space-4)}.linear-function-simulation .info-modal{width:100%;max-width:37.5rem;background:var(--dark-surface);border:.0625rem solid var(--dark-border);border-radius:var(--radius-2xl);overflow:hidden}.linear-function-simulation .info-modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-6);border-bottom:.0625rem solid var(--dark-border)}.linear-function-simulation .info-modal-header h2{font-size:var(--text-xl);color:var(--white)}.linear-function-simulation .info-modal-header button{background:none;border:none;color:var(--dark-text-muted);cursor:pointer}.linear-function-simulation .info-modal-content{padding:var(--space-6)}.linear-function-simulation .info-modal-content section{margin-bottom:var(--space-6)}.linear-function-simulation .info-modal-content h3{color:var(--white);margin-bottom:var(--space-3)}.linear-function-simulation .info-modal-content p,.linear-function-simulation .info-modal-content li{color:var(--dark-text-muted);font-size:var(--text-sm);line-height:1.6}.linear-function-simulation .info-modal-content ul{padding-left:var(--space-4)}.linear-function-simulation .info-modal-content li{margin-bottom:var(--space-2)}.unit-circle-simulation{position:relative;height:100vh}.unit-circle-canvas{width:100%;height:100%;display:block;touch-action:none}.unit-circle-simulation .back-btn-float{position:absolute;top:var(--space-3);left:var(--space-3);z-index:100;display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;background:var(--dark-surface);border:.0625rem solid var(--dark-border);border-radius:var(--radius-lg);color:var(--dark-text-muted);cursor:pointer;transition:all var(--transition-fast)}.unit-circle-simulation .back-btn-float:hover{border-color:var(--primary);color:var(--white)}.special-angles{display:flex;flex-wrap:wrap;gap:var(--space-1);margin:var(--space-2) 0}.angle-btn{padding:var(--space-1) var(--space-2);background:var(--dark-surface-2);border:.0625rem solid var(--dark-border);border-radius:var(--radius-sm);color:var(--dark-text-muted);font-size:var(--text-xs);cursor:pointer;transition:all var(--transition-fast)}.angle-btn:hover{border-color:var(--primary);color:var(--white);transform:translateY(-1px)}.angle-btn.active{background:linear-gradient(135deg,var(--primary),var(--accent));border-color:var(--primary);color:var(--white);box-shadow:0 2px 8px #2e7d9966}.special-angles-table{background:var(--dark-surface-2);border-radius:var(--radius-md);overflow:hidden;font-size:var(--text-xs)}.special-angles-table .table-row{display:grid;grid-template-columns:1fr 1fr 1fr;padding:var(--space-2) var(--space-3);border-bottom:1px solid var(--dark-border);cursor:pointer;transition:all var(--transition-fast)}.special-angles-table .table-row:last-child{border-bottom:none}.special-angles-table .table-row.header{background:var(--dark-surface);font-weight:var(--font-semibold);color:var(--primary);cursor:default}.special-angles-table .table-row:not(.header):hover{background:#2e7d991a}.special-angles-table .table-row.active{background:#ff9a4433;color:var(--accent)}.special-angles-table .table-row span{text-align:center}.unit-circle-simulation .quiz-question{display:flex;flex-direction:column;gap:var(--space-4)}.unit-circle-simulation .question-text{font-size:var(--text-base);color:var(--white);line-height:1.6}.unit-circle-simulation .quiz-options{display:flex;flex-direction:column;gap:var(--space-2)}.unit-circle-simulation .quiz-option{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--dark-surface-2);border:.125rem solid var(--dark-border);border-radius:var(--radius-lg);color:var(--dark-text);font-size:var(--text-sm);cursor:pointer;text-align:left;transition:all var(--transition-fast)}.unit-circle-simulation .quiz-option:hover:not(:disabled){border-color:var(--primary);transform:translate(4px)}.unit-circle-simulation .quiz-option.correct{border-color:var(--success);background:#28a74526}.unit-circle-simulation .quiz-option.incorrect{border-color:var(--danger);background:#dc354526}.unit-circle-simulation .option-letter{display:flex;align-items:center;justify-content:center;width:1.75rem;height:1.75rem;background:var(--dark-surface);border-radius:var(--radius-full);font-weight:var(--font-semibold)}.unit-circle-simulation .option-text{flex:1}.unit-circle-simulation .explanation-box{padding:var(--space-4);background:#2e7d991a;border:.0625rem solid rgba(46,125,153,.2);border-radius:var(--radius-lg)}.unit-circle-simulation .explanation-box p{margin:0 0 var(--space-4);color:var(--dark-text);font-size:var(--text-sm)}.unit-circle-simulation .quiz-complete{display:flex;flex-direction:column;align-items:center;gap:var(--space-2)}.unit-circle-simulation .quiz-complete svg{color:var(--accent)}.unit-circle-simulation .info-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:var(--z-modal);padding:var(--space-4);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.unit-circle-simulation .info-modal{width:100%;max-width:37.5rem;max-height:85vh;overflow-y:auto;background:var(--dark-surface);border:.0625rem solid var(--dark-border);border-radius:var(--radius-2xl)}.unit-circle-simulation .info-modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-6);border-bottom:.0625rem solid var(--dark-border);position:sticky;top:0;background:var(--dark-surface)}.unit-circle-simulation .info-modal-header h2{font-size:var(--text-xl);color:var(--white)}.unit-circle-simulation .info-modal-header button{background:none;border:none;color:var(--dark-text-muted);cursor:pointer;transition:color var(--transition-fast)}.unit-circle-simulation .info-modal-header button:hover{color:var(--white)}.unit-circle-simulation .info-modal-content{padding:var(--space-6)}.unit-circle-simulation .info-modal-content section{margin-bottom:var(--space-6)}.unit-circle-simulation .info-modal-content h3{display:flex;align-items:center;gap:var(--space-2);color:var(--white);margin-bottom:var(--space-3)}.unit-circle-simulation .info-modal-content h3 svg{color:var(--primary)}.unit-circle-simulation .info-modal-content p,.unit-circle-simulation .info-modal-content li{color:var(--dark-text-muted);font-size:var(--text-sm);line-height:1.6}.unit-circle-simulation .info-modal-content ul{padding-left:var(--space-4)}.unit-circle-simulation .info-modal-content li{margin-bottom:var(--space-2)}.unit-circle-simulation .info-modal-content li strong{color:var(--accent)}.derivative-simulation{position:relative;height:100vh}.derivative-canvas{width:100%;height:100%;display:block;touch-action:none}.derivative-simulation .back-btn-float{position:absolute;top:var(--space-3);left:var(--space-3);z-index:100;display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;background:var(--dark-surface);border:.0625rem solid var(--dark-border);border-radius:var(--radius-lg);color:var(--dark-text-muted);cursor:pointer;transition:all var(--transition-fast)}.derivative-simulation .back-btn-float:hover{border-color:var(--primary);color:var(--white)}.preset-buttons{display:flex;flex-wrap:wrap;gap:var(--space-1)}.preset-btn{padding:var(--space-1) var(--space-2);background:var(--dark-surface-2);border:1px solid var(--dark-border);border-radius:var(--radius-sm);color:var(--dark-text-muted);font-size:var(--text-xs);cursor:pointer;transition:all var(--transition-fast)}.preset-btn:hover{border-color:var(--primary);color:var(--white);transform:translateY(-1px)}.rules-table{background:var(--dark-surface-2);border-radius:var(--radius-md);overflow:hidden;margin-top:var(--space-2)}.rule-row{display:flex;flex-direction:column;padding:var(--space-2) var(--space-3);border-bottom:1px solid var(--dark-border)}.rule-row:last-child{border-bottom:none}.rule-name{font-size:var(--text-xs);font-weight:var(--font-semibold);color:var(--primary);margin-bottom:var(--space-1)}.rule-formula{font-size:var(--text-xs);color:var(--dark-text);font-family:Courier New,monospace}.discovery-btn{display:flex;align-items:center;justify-content:center;gap:var(--space-2);width:100%;padding:var(--space-3) var(--space-4);background:linear-gradient(135deg,#9b59b6,#8e44ad);border:none;border-radius:var(--radius-lg);color:var(--white);font-size:var(--text-sm);font-weight:var(--font-semibold);cursor:pointer;transition:all var(--transition-normal)}.discovery-btn:hover{transform:translateY(-2px);box-shadow:0 4px 15px #9b59b666}.discovery-status{background:#9b59b626;border:1px solid rgba(155,89,182,.3);border-radius:var(--radius-md);padding:var(--space-3);text-align:center}.discovery-status p{margin:0 0 var(--space-2);color:var(--dark-text);font-size:var(--text-sm)}.discovery-status .score{font-size:var(--text-lg);font-weight:var(--font-bold);color:#9b59b6}.discovery-status .btn-sm{margin-top:var(--space-2);padding:var(--space-1) var(--space-3);background:var(--dark-surface-2);border:1px solid var(--dark-border);border-radius:var(--radius-sm);color:var(--dark-text-muted);font-size:var(--text-xs);cursor:pointer}.discovery-toast{position:fixed;bottom:100px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-6);background:linear-gradient(135deg,#2ecc71,#27ae60);border-radius:var(--radius-xl);color:#fff;font-size:var(--text-base);font-weight:var(--font-semibold);box-shadow:0 10px 40px #2ecc7166;z-index:1000}.discovery-toast svg{animation:pulse .5s ease-in-out infinite alternate}@keyframes pulse{0%{transform:scale(1)}to{transform:scale(1.2)}}.derivative-simulation .quiz-question{display:flex;flex-direction:column;gap:var(--space-4)}.derivative-simulation .question-text{font-size:var(--text-base);color:var(--white);line-height:1.6}.derivative-simulation .quiz-options{display:flex;flex-direction:column;gap:var(--space-2)}.derivative-simulation .quiz-option{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--dark-surface-2);border:.125rem solid var(--dark-border);border-radius:var(--radius-lg);color:var(--dark-text);font-size:var(--text-sm);cursor:pointer;text-align:left;transition:all var(--transition-fast)}.derivative-simulation .quiz-option:hover:not(:disabled){border-color:var(--primary);transform:translate(4px)}.derivative-simulation .quiz-option.correct{border-color:var(--success);background:#28a74526}.derivative-simulation .quiz-option.incorrect{border-color:var(--danger);background:#dc354526}.derivative-simulation .option-letter{display:flex;align-items:center;justify-content:center;width:1.75rem;height:1.75rem;background:var(--dark-surface);border-radius:var(--radius-full);font-weight:var(--font-semibold)}.derivative-simulation .option-text{flex:1}.derivative-simulation .explanation-box{padding:var(--space-4);background:#2e7d991a;border:.0625rem solid rgba(46,125,153,.2);border-radius:var(--radius-lg)}.derivative-simulation .explanation-box p{margin:0 0 var(--space-4);color:var(--dark-text);font-size:var(--text-sm)}.derivative-simulation .quiz-complete{display:flex;flex-direction:column;align-items:center;gap:var(--space-2)}.derivative-simulation .quiz-complete svg{color:var(--accent)}.derivative-simulation .info-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:var(--z-modal);padding:var(--space-4);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.derivative-simulation 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