.calculator{max-width:1100px;margin:0 auto;background:#fff;border:1px solid #e3eaf4;border-radius:18px;overflow:hidden;box-shadow:0 12px 40px rgb(20 50 100 / .09)}.main{padding:26px}.panel{height:100%;min-width:0;border:1px solid #e2e9f3;border-radius:14px;padding:22px;background:#fff}.section-heading{font-size:18px;font-weight:700;margin:0 0 20px}.form-label{display:block;font-size:13px;font-weight:700;margin-bottom:7px}.form-control,.form-select{width:100%;min-height:44px;border-radius:8px;border-color:#d5dfec;font-size:14px}.form-control:focus,.form-select:focus{border-color:#0d6efd;box-shadow:0 0 0 3px rgb(13 110 253 / .12)}.primary-btn,.secondary-btn{width:100%;min-height:44px;border-radius:8px;font-weight:700;transition:background .2s,color .2s}.primary-btn{color:#fff;background:#0d6efd;border:1px solid #0d6efd}.primary-btn:hover{color:#fff;background:#0b5ed7;border-color:#0b5ed7}.secondary-btn{color:#0d6efd;background:#fff;border:1px solid #0d6efd}.secondary-btn:hover{color:#fff;background:#0d6efd}.mode-buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.mode-btn{min-height:40px;padding:8px 4px;background:#f3f7ff;border:1px solid #dbe7fa;border-radius:8px;color:#36516f;font-size:12px;font-weight:700}.mode-btn.active{background:#0d6efd;border-color:#0d6efd;color:#fff}.preset-grid{display:flex;flex-wrap:wrap;gap:7px}.preset{border:1px solid #dbe5f3;background:#f6f9ff;color:#344b6b;padding:8px 10px;border-radius:7px;font-size:12px}.preset:hover,.preset.active{background:#0d6efd;color:#fff;border-color:#0d6efd}.preview-box{width:100%;min-height:290px;background:#f4f8ff;border:1px solid #e1eaf8;border-radius:12px;padding:24px 16px;display:flex;flex-direction:column;align-items:center;justify-content:center}.monitor-wrap{width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center}.monitor{display:block;flex:0 0 auto;width:min(100%, 350px);max-width:100%;aspect-ratio:16 / 9;margin-left:auto;margin-right:auto;padding:7px;background:#233147;border-radius:8px;box-shadow:0 9px 22px rgb(23 44 74 / .12);transition:aspect-ratio .2s}.monitor-screen{width:100%;height:100%;border-radius:3px;background:linear-gradient(140deg,#6db4ff,#0d6efd 70%,#2449bb);display:flex;align-items:center;justify-content:center;color:#fff;text-align:center;font-size:13px;font-weight:700;overflow:hidden;overflow-wrap:anywhere}.monitor-neck{height:19px;width:44px;margin:0 auto;background:#26354b;clip-path:polygon(30% 0,70% 0,85% 100%,15% 100%)}.monitor-base{width:90px;height:6px;margin:0 auto;background:#26354b;border-radius:8px}.preview-info{width:100%;font-size:12px;color:#667890;text-align:center;margin-top:16px;line-height:1.7}.results-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:15px}.result{min-width:0;border:1px solid #e2eaf5;background:#fff;border-radius:10px;padding:14px}.result-label{font-size:12px;color:#697b92;margin-bottom:7px}.result-value{font-size:clamp(16px, 2vw, 22px);font-weight:750;color:#0d6efd;overflow-wrap:anywhere}.result-unit{font-size:11px;color:#8491a4;margin-top:5px}.small-note{font-size:12px;color:#728197;line-height:1.6}.info-box{padding:13px;background:#eef5ff;border-left:3px solid #0d6efd;border-radius:7px;font-size:12px;line-height:1.7;color:#3d506b}.status{font-size:12px;color:#0d6efd;margin-top:10px;min-height:17px;overflow-wrap:anywhere}.status.error{color:#dc3545}.table{margin-bottom:0}.table>:not(caption)>*>*{padding:10px;font-size:12px;overflow-wrap:anywhere}.table th{width:50%;background:#f7f9fc;font-weight:600}.footer{border-top:1px solid #e6edf6;text-align:center;padding:17px;font-size:12px;color:#748197}@media (max-width:767px){body{padding:10px 7px}.header{padding:23px 18px}.header h1{font-size:23px}.main{padding:13px}.panel{padding:16px}.preview-box{min-height:250px;padding:20px 12px}.result{padding:12px}}