.sthwtz2026-boyle-container{all:initial;display:block;width:100%!important;margin:0 auto!important;padding:0!important;font-family:'Poppins',Arial,sans-serif;color:#222;box-sizing:border-box}.sthwtz2026-boyle-container *{box-sizing:border-box!important;font-family:'Poppins',Arial,sans-serif!important}.sthwtz2026-boyle-container input,.sthwtz2026-boyle-container select,.sthwtz2026-boyle-container button{-webkit-appearance:none!important;-moz-appearance:none!important;appearance:none!important;border-radius:12px!important}.sthwtz2026-boyle-container.sthwtz2026-dark{background:#0d1117}.sthwtz2026-boyle-container.sthwtz2026-dark .sthwtz2026-card-header,.sthwtz2026-boyle-container.sthwtz2026-dark .sthwtz2026-input-section,.sthwtz2026-boyle-container.sthwtz2026-dark .sthwtz2026-result-container{background:#1e1e2e;box-shadow:0 8px 20px rgb(0 0 0 / .4)}.sthwtz2026-boyle-container.sthwtz2026-dark .sthwtz2026-card-header h2,.sthwtz2026-boyle-container.sthwtz2026-dark .sthwtz2026-result-container h3{color:#90caf9}.sthwtz2026-boyle-container.sthwtz2026-dark .sthwtz2026-input-group input,.sthwtz2026-boyle-container.sthwtz2026-dark .sthwtz2026-input-group select{background:#2a2a3e;border-color:#444;color:#e0e0e0}.sthwtz2026-boyle-container.sthwtz2026-dark .sthwtz2026-result-card{background:#2a2a3e}.sthwtz2026-boyle-container.sthwtz2026-dark .sthwtz2026-chart-container,.sthwtz2026-boyle-container.sthwtz2026-dark .sthwtz2026-practical-section,.sthwtz2026-boyle-container.sthwtz2026-dark .sthwtz2026-history-section{background:#1e1e2e}.sthwtz2026-card-header{text-align:center;margin-bottom:20px;padding:24px 16px;border-radius:16px;background:#fff;box-shadow:0 8px 20px rgb(0 0 0 / .1);position:relative}.sthwtz2026-card-header h2{font-size:28px;color:#1976d2;font-weight:700;margin-bottom:12px}.sthwtz2026-card-header p{font-size:15px;color:#555;max-width:800px;margin:0 auto}.sthwtz2026-darkmode-btn{position:absolute;top:16px;right:16px;background:#1976d2;border:none;border-radius:50px!important;padding:8px 16px;font-size:13px;color:#fff;cursor:pointer;font-weight:600!important}.sthwtz2026-info-box{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:20px;border-radius:12px;margin-bottom:20px;box-shadow:0 4px 12px rgb(0 0 0 / .15)}.sthwtz2026-info-box p{margin:0 0 10px 0;font-size:14px;line-height:1.7}.sthwtz2026-info-box ul{margin:12px 0 0 0;padding-left:0;list-style:none}.sthwtz2026-info-box li{margin-bottom:8px;padding-left:24px;position:relative}.sthwtz2026-info-box li:before{content:"✓";position:absolute;left:0;font-weight:700}.sthwtz2026-input-section{background:#fff;padding:24px;border-radius:16px;box-shadow:0 8px 20px rgb(0 0 0 / .08);margin-bottom:20px}.sthwtz2026-section-heading h4{margin:0 0 16px 0;font-weight:600;font-size:18px;color:#1976d2;border-bottom:2px solid #1976d2;padding-bottom:8px}.sthwtz2026-input-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}.sthwtz2026-input-group{flex:1;min-width:200px}.sthwtz2026-input-group label{display:block;margin-bottom:6px;font-weight:600!important;font-size:14px;color:#1976d2}.sthwtz2026-input-group input,.sthwtz2026-input-group select{width:100%;padding:12px 14px;border:1px solid #90caf9;border-radius:12px;font-size:15px;background:#fff}.sthwtz2026-input-group input:focus,.sthwtz2026-input-group select:focus{outline:none;border-color:#1976d2;box-shadow:0 0 0 3px rgb(25 118 210 / .15)}.sthwtz2026-error-msg{color:#f44336;font-size:12px;margin-top:4px;display:none}.sthwtz2026-error-msg.sthwtz2026-show{display:block}.sthwtz2026-btn-group{display:flex;gap:12px;margin-top:20px}.sthwtz2026-calculate-btn,.sthwtz2026-reset-btn{flex:1;padding:14px;border:none;border-radius:12px;font-weight:700!important;font-size:16px;cursor:pointer}.sthwtz2026-calculate-btn{background:#1976d2;color:#fff}.sthwtz2026-calculate-btn:hover{background:#125ea8}.sthwtz2026-reset-btn{background:#f44336;color:#fff}.sthwtz2026-reset-btn:hover{background:#c62828}.sthwtz2026-copy-btn{background:#e3f2fd;border:1px solid #90caf9;border-radius:8px!important;padding:8px 16px;font-size:13px;color:#1976d2;cursor:pointer;font-weight:600!important}.sthwtz2026-result-container{margin-top:30px;background:#fff;padding:24px;border-radius:16px;box-shadow:0 8px 20px rgb(0 0 0 / .1)}.sthwtz2026-result-container.sthwtz2026-hidden{display:none}.sthwtz2026-result-container h3{font-size:22px;color:#1976d2;margin:0 0 20px 0;text-align:center;font-weight:700}.sthwtz2026-results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.sthwtz2026-result-card{background:#f5f5f5;padding:20px;border-radius:12px;text-align:center;box-shadow:0 2px 8px rgb(0 0 0 / .08)}.sthwtz2026-result-card.sthwtz2026-highlight{background:linear-gradient(135deg,#1976d2 0%,#1565c0 100%);color:#fff;transform:scale(1.05)}.sthwtz2026-result-title{font-size:13px;font-weight:600!important;margin-bottom:8px;opacity:.9}.sthwtz2026-result-value{font-size:28px;font-weight:700!important;margin-bottom:4px}.sthwtz2026-result-unit{font-size:13px;opacity:.8}.sthwtz2026-chart-container{background:#fff;padding:24px;border-radius:16px;box-shadow:0 8px 20px rgb(0 0 0 / .08);margin-top:20px}.sthwtz2026-chart-container.sthwtz2026-hidden{display:none}.sthwtz2026-chart-container h4{margin:0 0 16px 0;font-size:18px;color:#1976d2;font-weight:600;text-align:center}.sthwtz2026-chart-wrapper{position:relative;width:100%;height:300px;background:#f9f9f9;border-radius:12px}.sthwtz2026-breakdown-section,.sthwtz2026-calculation-steps,.sthwtz2026-educational-info{padding:20px;border-radius:12px;margin-bottom:20px}.sthwtz2026-breakdown-section{background:#e3f2fd}.sthwtz2026-calculation-steps{background:#f3e5f5}.sthwtz2026-educational-info{background:linear-gradient(135deg,#e8f5e9 0%,#c8e6c9 100%)}.sthwtz2026-breakdown-section h4,.sthwtz2026-calculation-steps h4,.sthwtz2026-educational-info h4{margin:0 0 12px 0;font-size:16px;font-weight:600}.sthwtz2026-breakdown-section ul{margin:0;padding-left:0;list-style:none}.sthwtz2026-breakdown-section li{margin-bottom:8px;font-size:14px;padding-left:28px;position:relative}.sthwtz2026-breakdown-section li:before{content:"🔹";position:absolute;left:0}.sthwtz2026-practical-section{background:linear-gradient(135deg,#e1f5fe 0%,#b3e5fc 100%);padding:20px;border-radius:16px;margin-top:20px}.sthwtz2026-practical-section h4{margin:0 0 16px 0;font-size:18px;color:#01579b;font-weight:600}.sthwtz2026-practical-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}.sthwtz2026-practical-card{background:#fff;padding:16px;border-radius:12px;border-left:4px solid #0288d1}.sthwtz2026-practical-card h5{margin:0 0 8px 0;font-size:15px;color:#01579b;font-weight:600}.sthwtz2026-practical-card p{margin:0;font-size:13px;color:#0277bd;line-height:1.6}.sthwtz2026-practical-card .sthwtz2026-icon{font-size:24px;margin-bottom:8px}.sthwtz2026-history-section{background:linear-gradient(135deg,#fff3e0 0%,#ffe0b2 100%);padding:20px;border-radius:16px;margin-top:20px}.sthwtz2026-history-section h4{margin:0 0 12px 0;font-size:18px;color:#e65100;font-weight:600}.sthwtz2026-history-section p{margin:8px 0;font-size:13px;color:#ef6c00;line-height:1.8}.sthwtz2026-exam-section{background:linear-gradient(135deg,#f3e5f5 0%,#e1bee7 100%);padding:20px;border-radius:16px;margin-top:20px}.sthwtz2026-exam-section h4{margin:0 0 16px 0;font-size:18px;color:#6a1b9a;font-weight:600}.sthwtz2026-exam-question{background:#fff;padding:16px;border-radius:12px;margin-bottom:12px;border-left:4px solid #8e24aa}.sthwtz2026-exam-question h5{margin:0 0 8px 0;font-size:14px;color:#6a1b9a;font-weight:600}.sthwtz2026-exam-question p{margin:4px 0;font-size:13px;color:#7b1fa2;line-height:1.6}.sthwtz2026-exam-answer{background:#f3e5f5;padding:12px;border-radius:8px;margin-top:8px;display:none}.sthwtz2026-exam-answer.sthwtz2026-show{display:block}.sthwtz2026-show-answer-btn{background:#8e24aa;color:#fff;border:none;padding:8px 16px;border-radius:8px!important;font-size:12px;cursor:pointer;margin-top:8px;font-weight:600!important}.sthwtz2026-gas-laws-section{background:linear-gradient(135deg,#e8eaf6 0%,#c5cae9 100%);padding:20px;border-radius:16px;margin-top:20px}.sthwtz2026-gas-laws-section h4{margin:0 0 16px 0;font-size:18px;color:#283593;font-weight:600}.sthwtz2026-gas-law-card{background:#fff;padding:16px;border-radius:12px;margin-bottom:12px;border-left:4px solid #3f51b5}.sthwtz2026-gas-law-card h5{margin:0 0 8px 0;font-size:15px;color:#283593;font-weight:600}.sthwtz2026-gas-law-card p{margin:4px 0;font-size:13px;color:#3949ab;line-height:1.6}.sthwtz2026-gas-law-card .sthwtz2026-formula{background:#e8eaf6;padding:8px 12px;border-radius:6px;font-family:monospace;color:#1a237e;margin:8px 0;display:inline-block}.sthwtz2026-limitations-section{background:linear-gradient(135deg,#ffebee 0%,#ffcdd2 100%);padding:20px;border-radius:16px;margin-top:20px}.sthwtz2026-limitations-section h4{margin:0 0 12px 0;font-size:18px;color:#c62828;font-weight:600}.sthwtz2026-limitations-section ul{margin:8px 0;padding-left:20px}.sthwtz2026-limitations-section li{margin:6px 0;font-size:13px;color:#d32f2f;line-height:1.6}.sthwtz2026-toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(80px);background:#323232;color:#fff;padding:12px 24px;border-radius:24px;font-size:14px;font-weight:600!important;z-index:99999;opacity:0;transition:all .3s}.sthwtz2026-toast.sthwtz2026-toast-show{opacity:1;transform:translateX(-50%) translateY(0)}@media(max-width:768px){.sthwtz2026-input-row{flex-direction:column}.sthwtz2026-input-group{min-width:100%}.sthwtz2026-results-grid{grid-template-columns:1fr}.sthwtz2026-btn-group{flex-direction:column}.sthwtz2026-practical-grid{grid-template-columns:1fr}}