:root{--color-primary: #0f4c75;--color-primary-light: #1b6fa8;--color-primary-dark: #083554;--color-secondary: #21808d;--color-success: #10b981;--color-white: #ffffff;--color-gray-50: #f8fafc;--color-gray-100: #f1f5f9;--color-gray-200: #e2e8f0;--color-gray-300: #cbd5e1;--color-gray-500: #64748b;--color-gray-800: #1e293b;--color-background: var(--color-gray-50);--color-surface: var(--color-white);--color-text: var(--color-gray-800);--color-text-secondary: var(--color-gray-500);--color-border: var(--color-gray-200);--color-primary-hover: var(--color-primary-light);--color-bg-1: #e6f0fa;--color-bg-2: var(--color-gray-50);--color-bg-3: #f0f9ff;--font-family-base: "Inter", system-ui, -apple-system, sans-serif;--font-family-display: "Outfit", system-ui, -apple-system, sans-serif;--font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, monospace;--radius-base: 10px;--space-8: 6px;--space-12: 10px;--space-16: 14px;--space-24: 20px;--shadow-md: 0 4px 8px rgba(0,0,0,.06);--shadow-lg: 0 10px 20px rgba(0,0,0,.08)}.calculator-page-wrapper{font-family:var(--font-family-base);background-color:var(--color-background);color:var(--color-text);line-height:1.5;padding-bottom:40px;font-size:.95rem}.calculator-page-wrapper .container{max-width:1000px;margin:0 auto;padding:var(--space-12) var(--space-16)}.calculator-page-wrapper .header{text-align:center;padding:0 0 var(--space-16) 0;margin-bottom:var(--space-16)}.calculator-page-wrapper .header .calc-logo{height:40px;margin-bottom:8px;display:none}.calculator-page-wrapper .header h1{font-family:var(--font-family-display);font-weight:800;letter-spacing:-.02em;font-size:1.75em;color:var(--color-primary);margin:0 0 4px}.calculator-page-wrapper .header p{color:var(--color-text-secondary);font-size:1rem;margin:0}.calculator-layout{display:grid;grid-template-columns:1fr;gap:20px;align-items:start}@media(min-width:850px){.calculator-layout{grid-template-columns:400px 1fr}}.calculator-page-wrapper .calculator-section{background:var(--color-surface);padding:24px;border-radius:16px;box-shadow:var(--shadow-lg);border:1px solid var(--color-border);width:100%}.calculator-page-wrapper .section-title{font-size:1.1em;font-weight:700;color:var(--color-primary);margin-bottom:16px;letter-spacing:.3px}.calculator-page-wrapper .toggle-buttons{display:flex;gap:6px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-base);padding:4px}.calculator-page-wrapper .toggle-btn{flex:1;padding:8px 12px;background:transparent;border:none;border-radius:calc(var(--radius-base) - 2px);font-size:.9em;font-family:inherit;color:var(--color-text-secondary);cursor:pointer;transition:all .2s;font-weight:600}.calculator-page-wrapper .toggle-btn.active{background:var(--color-primary);color:#fff}.calculator-page-wrapper .toggle-btn:hover:not(.active){background:var(--color-secondary);color:var(--color-text)}.calculator-page-wrapper .input-method{display:none}.calculator-page-wrapper .input-method.active{display:block}.form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.calculator-page-wrapper .calculated-load{background:var(--color-bg-1);border:1.5px dashed var(--color-primary);color:var(--color-primary-dark);padding:12px;border-radius:var(--radius-base);font-size:1.2em;font-weight:700;font-family:var(--font-family-mono);text-align:center}.calculator-page-wrapper .formula-hint{margin-top:6px;font-size:.8em;color:var(--color-text-secondary);font-family:var(--font-family-mono);text-align:center}.calculator-page-wrapper .checkbox-label{display:flex;align-items:center;gap:8px;cursor:pointer;padding:10px;background:var(--color-bg-2);border-radius:var(--radius-base);border:1px solid var(--color-border);font-size:.9em}.calculator-page-wrapper .checkbox-label input[type=checkbox]{width:16px;height:16px;cursor:pointer;accent-color:var(--color-primary)}.calculator-page-wrapper .btn{padding:12px 20px;font-size:1em;font-family:inherit;border:none;border-radius:var(--radius-base);cursor:pointer;transition:all .2s;min-height:44px}.calculator-page-wrapper .btn-primary{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));box-shadow:var(--shadow-md);font-weight:600;color:#fff;flex:1;margin-top:8px}.calculator-page-wrapper .btn-primary:hover{background:var(--color-primary-hover);transform:translateY(-1px)}.action-buttons-row{display:flex;gap:8px}.btn-action{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:8px 12px;font-size:.9em;font-weight:600;border-radius:var(--radius-base);cursor:pointer;border:1px solid transparent;transition:all .2s}.btn-print{background:var(--color-gray-800);color:#fff}.btn-print:hover{background:#000}.btn-whatsapp{background:#25d366;color:#fff}.btn-whatsapp:hover{background:#128c7e}.calculator-page-wrapper .material-card{background:var(--color-bg-3);border:1px solid rgba(16,185,129,.25);border-radius:var(--radius-base);padding:12px 16px;margin-bottom:10px;display:flex;justify-content:space-between;align-items:center}.calculator-page-wrapper .material-card h4{font-size:.9em;color:var(--color-text-secondary);margin:0;font-weight:500}.calculator-page-wrapper .material-value{font-size:1.15em;font-weight:700;color:var(--color-text);font-family:var(--font-family-mono)}.calculator-page-wrapper .sealcoat-section{margin-top:16px;padding-top:16px;border-top:2px dashed var(--color-border)}.calculator-page-wrapper .form-group{margin-bottom:14px}.calculator-page-wrapper .form-label{display:block;margin-bottom:6px;font-size:.9em;font-weight:600;color:var(--color-text)}.calculator-page-wrapper .form-input,.calculator-page-wrapper .form-select{width:100%;padding:10px 12px;font-size:.95em;border:1px solid var(--color-border);border-radius:var(--radius-base);background:var(--color-surface);color:var(--color-text);font-family:inherit;box-sizing:border-box}.calculator-page-wrapper .form-input:focus,.calculator-page-wrapper .form-select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #1b6fa81a}.results-wrapper{background:var(--color-surface);border:2px solid var(--color-primary);border-radius:16px;padding:24px;box-shadow:var(--shadow-lg)}.results-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;flex-wrap:wrap;gap:12px;padding-bottom:12px;border-bottom:1px solid var(--color-border)}.results-header h3{font-size:1.25em;color:var(--color-primary);margin:0;font-weight:800}.calculator-page-wrapper .result-group{margin-bottom:20px}.calculator-page-wrapper .result-group h4{font-size:1.05em;margin:0 0 12px;color:var(--color-text);font-weight:700}.calculator-page-wrapper .result-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--color-border);font-size:.95em}.calculator-page-wrapper .result-row:last-child{border-bottom:none}.calculator-page-wrapper .result-label{color:var(--color-text-secondary)}.calculator-page-wrapper .result-value{font-weight:700;color:var(--color-text);font-family:var(--font-family-mono)}.copyright-notice{margin-top:20px;padding-top:12px;border-top:1px solid var(--color-border);text-align:center;font-size:.7rem;color:var(--color-text-secondary);line-height:1.4}@media print{body{background:#fff!important;color:#000!important}.top-bar,.navbar,.footer,.custom-chat-wrapper,.header,.calculator-section,.action-buttons-row{display:none!important}.results-wrapper{border:none!important;padding:0!important;box-shadow:none!important;margin-top:0!important;display:block!important;width:100%!important}.calculator-page-wrapper .container{max-width:100%!important;padding:0!important}.material-card{border:1px solid #ddd!important;break-inside:avoid;background:#fafafa!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}.print-header{display:block!important;text-align:center;margin-bottom:20px;border-bottom:2px solid #000;padding-bottom:10px}.print-header h1{font-size:24px;color:#000;margin:0}.print-header p{font-size:14px;color:#555;margin:5px 0 0}}