.ptc2026-container{all:initial;display:block}.ptc2026-container *{box-sizing:border-box!important;font-family:'Poppins',Arial,sans-serif!important;font-weight:normal!important}.ptc2026-container p,.ptc2026-container span,.ptc2026-container div,.ptc2026-container li,.ptc2026-container label,.ptc2026-container input,.ptc2026-container select,.ptc2026-container textarea{font-weight:normal!important}.ptc2026-container strong,.ptc2026-container b{font-weight:700!important}.ptc2026-container h1,.ptc2026-container h2,.ptc2026-container h3,.ptc2026-container h4,.ptc2026-container h5,.ptc2026-container h6{font-weight:600!important}.ptc2026-container input,.ptc2026-container select,.ptc2026-container button,.ptc2026-container textarea{-webkit-appearance:none!important;-moz-appearance:none!important;appearance:none!important;background-image:none!important;border-radius:12px!important}.ptc2026-container button{cursor:pointer!important;text-decoration:none!important}.ptc2026-container{width:100%!important;margin:0 auto!important;padding:0px!important;font-family:'Poppins',Arial,sans-serif;color:#222;box-sizing:border-box}.ptc2026-container *,.ptc2026-container *::before,.ptc2026-container *::after{box-sizing:border-box}.ptc2026-card-header{text-align:center;margin-bottom:10px;padding:10px;border-radius:16px;background:#fff;box-shadow:0 8px 20px rgb(0 0 0 / .1);transition:transform .3s}.ptc2026-card-header:hover{transform:translateY(-2px)}.ptc2026-card-header h2{font-size:24px;color:#333;font-weight:600;margin-bottom:8px}.ptc2026-card-header p{font-size:14px;color:#555;margin:0 auto}.ptc2026-card{background:#fff;padding:3px;border-radius:16px;box-shadow:0 6px 18px rgb(0 0 0 / .08)}.ptc2026-info-box{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:16px;border-radius:12px;margin-bottom:20px;box-shadow:0 4px 12px rgb(0 0 0 / .15)}.ptc2026-info-box p{margin:0 0 10px 0;font-size:14px;line-height:1.6;font-weight:normal!important}.ptc2026-info-box p:last-child{margin-bottom:0}.ptc2026-info-box strong{font-weight:700!important}.ptc2026-warning-box{background:#fff3cd;border-left:4px solid #ffc107;padding:12px 16px;border-radius:8px;margin:16px 0}.ptc2026-warning-box p{margin:0;font-size:13px;color:#856404;line-height:1.5;font-weight:normal!important}.ptc2026-warning-box strong{color:#d39e00;font-weight:700!important}.ptc2026-input-section{background:#fff;padding:20px;border-radius:16px;box-shadow:0 8px 20px rgb(0 0 0 / .08);margin:0}.ptc2026-section-heading{margin-bottom:16px}.ptc2026-section-heading h4{margin:0 0 8px 0;font-weight:600;font-size:18px;color:#1976d2;border-bottom:2px solid #1976d2;padding-bottom:8px}.ptc2026-input-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}.ptc2026-input-group{flex:1;min-width:200px}.ptc2026-input-group label{display:block;margin-bottom:6px;font-weight:600!important;font-size:14px;color:#1976d2}.ptc2026-input-group input,.ptc2026-input-group select{width:100%;padding:12px 14px;border:1px solid #90caf9;border-radius:12px;font-size:15px;transition:.3s;background:#fff;font-weight:normal!important}.ptc2026-input-group input:focus,.ptc2026-input-group select:focus{outline:none;border-color:#1976d2;box-shadow:0 0 0 3px rgb(25 118 210 / .15)}.ptc2026-checkbox-options{display:flex;flex-direction:column;gap:8px}.ptc2026-checkbox-option{display:flex;align-items:center;gap:10px;padding:12px;border-radius:8px;background:#f8f9fa;border:2px solid #e0e0e0;transition:all 0.2s}.ptc2026-checkbox-option:hover{background-color:#e3f2fd;border-color:#90caf9}.ptc2026-checkbox-option input[type="checkbox"]{width:22px;height:22px;cursor:pointer;accent-color:#1976d2;border:2px solid #1976d2;border-radius:4px;flex-shrink:0}.ptc2026-checkbox-option input[type="checkbox"]:checked{background-color:#1976d2}.ptc2026-checkbox-option label{cursor:pointer;font-size:14px;margin:0;font-weight:500!important;color:#333;user-select:none;flex:1}.ptc2026-advanced-options{margin-top:20px;padding-top:20px;border-top:2px dashed #e0e0e0}.ptc2026-advanced-options h4{margin:0 0 16px 0;font-size:16px;color:#1976d2}.ptc2026-btn-group{display:flex;gap:12px;margin-top:20px}.ptc2026-calculate-btn,.ptc2026-reset-btn{flex:1;padding:14px;border:none;border-radius:12px;font-weight:700!important;font-size:16px;cursor:pointer;transition:.2s}.ptc2026-calculate-btn{background:#1976d2;color:#fff}.ptc2026-calculate-btn:hover{background:#125ea8;transform:translateY(-2px)}.ptc2026-reset-btn{background:#f44336;color:#fff}.ptc2026-reset-btn:hover{background:#c62828;transform:translateY(-2px)}.ptc2026-result-container{margin-top:30px;background:#fff;padding:24px;border-radius:16px;box-shadow:0 8px 20px rgb(0 0 0 / .1)}.ptc2026-result-container.ptc2026-hidden{display:none}.ptc2026-result-container h3{font-size:22px;color:#1976d2;margin:0 0 20px 0;text-align:center;font-weight:700}.ptc2026-triangle-display{background:#f5f5f5;padding:20px;border-radius:12px;margin-bottom:20px;overflow-x:auto}.ptc2026-triangle-row{display:flex;justify-content:center;gap:8px;margin-bottom:8px}.ptc2026-triangle-cell{min-width:45px;padding:8px;background:#fff;border:2px solid #1976d2;border-radius:8px;text-align:center;font-weight:600!important;font-size:14px;color:#1976d2;transition:all 0.3s}.ptc2026-triangle-cell:hover{transform:scale(1.1);background:#1976d2;color:#fff;box-shadow:0 4px 12px rgb(25 118 210 / .3)}.ptc2026-triangle-cell.ptc2026-highlight{background:gold;border-color:#ffa000;color:#000}.ptc2026-calculation-steps{background:#f3e5f5;padding:20px;border-radius:12px;margin-bottom:20px}.ptc2026-calculation-steps h4{margin:0 0 12px 0;font-size:16px;color:#4a148c;font-weight:600}.ptc2026-steps-content{font-size:13px;color:#6a1b9a;line-height:1.8;font-weight:normal!important}.ptc2026-steps-content p{margin:8px 0;font-weight:normal!important}.ptc2026-steps-content strong{color:#4a148c;font-weight:700!important}.ptc2026-steps-content em{font-style:italic;font-weight:normal!important}.ptc2026-educational-info{background:linear-gradient(135deg,#e8f5e9 0%,#c8e6c9 100%);padding:20px;border-radius:12px;margin-bottom:20px}.ptc2026-educational-info h4{margin:0 0 12px 0;font-size:16px;color:#2e7d32;font-weight:600}.ptc2026-educational-info p{margin:8px 0;font-size:13px;color:#1b5e20;line-height:1.8;font-weight:normal!important}.ptc2026-educational-info strong{font-weight:700!important}.ptc2026-educational-info ul{margin:8px 0;padding-left:20px}.ptc2026-educational-info li{margin-bottom:6px;font-size:13px;color:#1b5e20;line-height:1.6;font-weight:normal!important}.ptc2026-pattern-display{background:#fff8e1;padding:20px;border-radius:12px;margin-bottom:20px}.ptc2026-pattern-display h4{margin:0 0 12px 0;font-size:16px;color:#f57c00;font-weight:600}.ptc2026-pattern-content{font-size:14px;color:#e65100;line-height:1.8;font-weight:normal!important}.ptc2026-binomial-result{background:#e1f5fe;padding:20px;border-radius:12px;margin-bottom:20px}.ptc2026-binomial-result h4{margin:0 0 12px 0;font-size:16px;color:#01579b;font-weight:600}.ptc2026-binomial-expression{font-size:16px;color:#0277bd;font-weight:600!important;text-align:center;padding:15px;background:#fff;border-radius:8px;margin:10px 0;overflow-x:auto}.ptc2026-hidden{display:none!important}@media(max-width:600px){.ptc2026-container{padding:12px!important}.ptc2026-input-row{flex-direction:column}.ptc2026-input-group{min-width:100%}.ptc2026-btn-group{flex-direction:column}.ptc2026-card-header h2{font-size:20px}.ptc2026-triangle-cell{min-width:35px;font-size:12px;padding:6px}}