.spCalc2026-container{width:100%;max-width:720px;margin:0 auto;padding:0;font-family:'Poppins',Arial,sans-serif;color:#222;line-height:1.6;font-weight:400;box-sizing:border-box}.spCalc2026-container *,.spCalc2026-container *::before,.spCalc2026-container *::after{box-sizing:border-box}.spCalc2026-header{text-align:center;padding:10px;border-radius:10px;background:#fff;box-shadow:0 8px 20px rgb(0 0 0 / .08)}.spCalc2026-header h2{font-size:24px;font-weight:600;margin-bottom:4px}.spCalc2026-header p{font-size:14px;color:#555;font-weight:400}.spCalc2026-card{background:rgb(255 255 255 / .85);padding:20px;border-radius:16px;box-shadow:0 8px 20px rgb(0 0 0 / .08);margin-top:16px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.spCalc2026-input-group{margin-bottom:12px}.spCalc2026-input-group label{display:block;font-weight:500;font-size:14px;color:#1565c0;margin-bottom:4px}.spCalc2026-input-group input,.spCalc2026-input-group select{width:100%;padding:10px 12px;border:1px solid #90caf9;border-radius:10px;font-size:14px;background:#fff;font-weight:400;transition:0.2s}.spCalc2026-input-group input:focus,.spCalc2026-input-group select:focus{outline:none;border-color:#1565c0;box-shadow:0 0 0 2px rgb(21 101 192 / .15)}.spCalc2026-input-group input[type="checkbox"]{width:auto;margin-right:6px;transform:scale(1.1)}.spCalc2026-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media(max-width:520px){.spCalc2026-grid{grid-template-columns:1fr}}.spCalc2026-button{width:100%;padding:12px;border:none;border-radius:12px;font-weight:600;font-size:16px;cursor:pointer;transition:0.2s;background:#1565c0;color:#fff}.spCalc2026-button:hover{background:#0d47a1;transform:translateY(-1px)}.spCalc2026-reset{background:#e53935}.spCalc2026-reset:hover{background:#b71c1c}.spCalc2026-result{display:none;margin-top:16px}.spCalc2026-box{background:#f5f5f5;padding:12px;border-radius:12px;text-align:center;font-size:14px;font-weight:400;transition:0.2s}.spCalc2026-box:hover{background:#e3f2fd;transform:translateY(-2px)}#spCalc2026-summary{margin-bottom:10px;background:#e3f2fd;color:#0d47a1;font-weight:400}#spCalc2026-summary h3{font-weight:500}#spCalc2026-summary b,#spCalc2026-summary strong{font-weight:500}#spCalc2026-steps{margin-top:10px;background:#e8f5e9;color:#1b5e20;text-align:left;font-size:13px;line-height:1.6;font-weight:400}.spCalc2026-math-box,.spCalc2026-step-box{background:#f9fbff;border-left:3px solid #1e88e5;padding:10px 12px;border-radius:8px;font-family:'Fira Code',monospace;font-size:13px;font-weight:400;margin:8px 0}.spCalc2026-param-list{padding-left:18px}.spCalc2026-param-list li{margin-bottom:4px;font-weight:400}#spCalc2026-canvas{width:100%;max-width:420px;height:auto;border-radius:14px;border:1px solid #ccc;background:linear-gradient(145deg,#fafafa,#e3f2fd);box-shadow:inset 0 0 12px rgb(0 0 0 / .06)}@media (prefers-color-scheme:dark){body{background:#000}.spCalc2026-header,.spCalc2026-card{background:#121212;color:#eee;box-shadow:0 8px 20px rgb(0 0 0 / .6)}.spCalc2026-input-group input,.spCalc2026-input-group select{background:#1e1e1e;color:#fff;border-color:#333}.spCalc2026-box{background:#1e1e1e}#spCalc2026-summary{background:#0d47a1;color:#fff}#spCalc2026-steps{background:#1b5e20;color:#fff}}