*,*::before,*::after{box-sizing:border-box}body{margin:0;padding:0;font-family:'Poppins',Arial,sans-serif;background:#f5f5f5;color:#222}.equiCalc-container{max-width:700px;margin:0 auto;padding:5px}.equiCalc-card-header{text-align:center;margin-bottom:10px;border-radius:10px;box-shadow:0 6px 18px rgb(0 0 0 / .08);padding:2px;background:#fff}.equiCalc-card-header h2{font-size:24px;color:#444;font-weight:600;margin-bottom:10px}.equiCalc-card-header p{font-size:14px;color:#555;line-height:1.6;max-width:550px;margin:0 auto}.equiCalc-card{background:#fff;padding:25px;border-radius:15px;box-shadow:0 6px 18px rgb(0 0 0 / .08);transition:transform 0.3s ease;margin-bottom:20px}.equiCalc-card:hover{transform:translateY(-3px)}.equiCalc-input-group{margin-bottom:15px}.equiCalc-input-group label{display:block;font-weight:600;margin-bottom:6px;font-size:14px;color:#1976d2}.equiCalc-input-group input,.equiCalc-input-group select{width:100%;padding:12px;border:1px solid #90caf9;border-radius:10px;font-size:15px;transition:0.2s}.equiCalc-input-group input:focus,.equiCalc-input-group select:focus{border-color:#1976d2;box-shadow:0 0 6px rgb(25 118 210 / .3);outline:none}.equiCalc-input-group input[type="checkbox"]{width:auto;margin-right:8px}.equiCalc-button{width:100%;padding:12px;margin-top:10px;background:#1976d2;color:#fff;border:none;border-radius:12px;font-weight:700;font-size:16px;cursor:pointer;transition:0.3s}.equiCalc-button:hover{background:#1565c0}.equiCalc-reset{background:#f44336}.equiCalc-reset:hover{background:#d32f2f}.equiCalc-result{display:none;margin-top:20px;animation:fadeIn 0.5s ease forwards}@keyframes fadeIn{from{opacity:0}to{opacity:1}}.equiCalc-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:15px}.equiCalc-card-detail{border-radius:15px;padding:15px;text-align:center;box-shadow:0 6px 15px rgb(0 0 0 / .08);font-weight:500;font-size:14px;transition:0.3s}.equiCalc-card-detail:nth-child(1){background:linear-gradient(135deg,#f0f0f0,#d9d9d9)}.equiCalc-card-detail:nth-child(2){background:linear-gradient(135deg,#e8f0f7,#cfdcec)}.equiCalc-card-detail:nth-child(3){background:linear-gradient(135deg,#f9f4f0,#f0e5d9)}.equiCalc-card-detail:nth-child(4){background:linear-gradient(135deg,#f4f0f7,#e0d9ec)}.equiCalc-card-detail:nth-child(5){background:linear-gradient(135deg,#f0f7f4,#d9ece0)}.equiCalc-card-detail:nth-child(6){background:linear-gradient(135deg,#fff4e0,#ffdcae)}.equiCalc-card-detail:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgb(0 0 0 / .12)}.equiCalc-steps{margin-top:18px;font-size:13px;background:linear-gradient(180deg,#ffffff,#f7fbff,#e3f2fd);padding:16px 18px;border-radius:14px;color:#0d47a1;line-height:1.7;box-shadow:0 4px 12px rgb(0 0 0 / .08);border-left:5px solid #1976d2}.equiCalc-steps b{color:#0d47a1;background:#e3f2fd;padding:1px 4px;border-radius:4px}.equiCalc-steps hr{border:none;border-top:1px dashed #90caf9;margin:10px 0}.equiCalc-steps .eduTip{margin-top:10px;padding:12px 14px;background:#fff3e0;border:1px solid #ffe0b2;color:#6d3b00;border-radius:12px}.equiCalc-canvas-wrap{width:100%;max-width:620px;margin:auto;padding:10px;background:#f5f7fa;border-radius:16px;box-shadow:0 8px 24px rgb(0 0 0 / .08)}#equiCalc-canvas{width:100%;display:block;background:#fff;border:1px solid #ddd;border-radius:12px}.equiCalc-input-unit{display:flex;gap:8px}.equiCalc-input-unit input{flex:1}#equiCalc-unit{width:90px}