.calculator-page-wrapper{min-height:100vh;background:var(--color-page-tool)}.calculator-page-main{display:flex;flex-direction:column;gap:var(--space-lg)}@media (min-width:768px){.calculator-page-main{gap:var(--space-section-standard)}}.calculator-section{display:flex;flex-direction:column;gap:var(--space-xl)}.calculator-section-title{font-size:var(--text-headline-md);font-weight:600;color:var(--color-text-primary);letter-spacing:-.02em}@media (min-width:768px){.calculator-section-title{font-size:1.25rem}}.calculator-compound-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}@media (max-width:374px){.calculator-compound-grid{grid-template-columns:1fr;gap:8px}}@media (min-width:768px){.calculator-compound-grid{grid-template-columns:repeat(5,1fr)}}.calculator-compound-card{min-height:44px;padding:12px;border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);font-size:var(--text-body-md);font-weight:500;color:var(--color-text-body);cursor:pointer;transition:all var(--motion-fast);text-align:center}.calculator-compound-card:hover{background:var(--color-accent-light);border-color:var(--color-accent-primary)}.calculator-compound-card:focus-visible{outline:4px solid var(--color-accent-primary);outline-offset:4px}.calculator-compound-card-active{border-color:var(--color-accent-primary);background:var(--color-accent-medium)}.calculator-compound-badge{display:inline-block;padding:var(--space-xxs) var(--space-sm);border-radius:var(--radius-sm);font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.calculator-dropdown-input{width:100%;border:1px solid var(--color-accent-primary);border-radius:var(--radius-card);background:var(--color-surface);padding:12px;font-size:var(--text-body-md);font-weight:500;color:var(--color-text-body);cursor:pointer}@media (min-width:768px){.calculator-dropdown-input{font-size:16px}}.calculator-dropdown-input:focus{outline:none;box-shadow:0 0 0 4px var(--pf-blue-light)}.calculator-dropdown-menu{position:absolute;left:0;right:0;top:100%;z-index:10;margin-top:8px;max-height:256px;overflow-y:auto;border-radius:var(--radius-card);border:1px solid var(--color-border);background:var(--color-surface);box-shadow:0 12px 16px -4px rgba(0,0,0,.1),0 4px 8px -4px rgba(0,0,0,.05)}.calculator-dropdown-item{width:100%;padding:8px 16px;text-align:left;font-size:var(--text-body-md);font-weight:500;color:var(--color-text-body);cursor:pointer;transition:background-color var(--motion-fast);border:none;background:transparent}.calculator-dropdown-item:hover{background:var(--color-accent-light)}.calculator-input-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}@media (min-width:480px){.calculator-input-grid{grid-template-columns:repeat(3,1fr)}}.calculator-input-button{min-height:44px;width:100%;padding:12px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);font-size:var(--text-body-md);font-weight:500;color:var(--color-text-primary);cursor:pointer;transition:all var(--motion-fast);text-align:center}.calculator-input-button:hover{border-color:var(--color-info);background:var(--color-info-tint)}.calculator-input-button:focus-visible{outline:4px solid var(--color-info);outline-offset:4px}.calculator-input-button-active{border-color:var(--color-info);background:var(--color-info-tint);font-weight:600}.calculator-toggle-row{display:flex;align-items:center;justify-content:space-between}.calculator-toggle-button{min-width:44px;min-height:44px;padding:12px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);cursor:pointer;transition:all var(--motion-fast);display:flex;align-items:center;justify-content:center}.calculator-toggle-button-active,.calculator-toggle-button:hover{border-color:var(--color-info);background:var(--color-info-tint)}.calculator-water-grid{display:grid;grid-template-columns:1fr;gap:8px}@media (min-width:480px){.calculator-water-grid{grid-template-columns:repeat(2,1fr)}}.calculator-concentration-display{width:100%;padding:16px;border:1px solid var(--color-info);border-radius:var(--radius-card);background:var(--color-info-tint);text-align:center}.calculator-input-inline{width:40px;border-radius:0;border:0;border-bottom:1px solid var(--color-border);background:transparent;padding:0 4px;font-size:var(--text-body-md);font-weight:600;text-align:center;color:var(--color-text-primary);transition:border-color var(--motion-fast)}.calculator-input-inline:focus{border-bottom-color:var(--color-info);outline:none}.calculator-input-custom{min-height:44px;padding:12px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);font-size:var(--text-body-md);color:var(--color-text-primary);text-align:center}.calculator-input-custom:focus{outline:4px solid var(--color-accent-primary);outline-offset:4px;border-color:var(--color-accent-primary)}.calculator-label-uppercase{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-secondary)}.calculator-unit-label{font-size:12px;color:var(--color-text-secondary);font-weight:400}.calculator-dose-slider{width:100%;padding:16px 0}.calculator-dose-display{font-size:var(--text-result-lg);font-weight:500;color:var(--color-text-primary);line-height:1.125;font-variant-numeric:tabular-nums}.calculator-dose-grid{display:grid;grid-template-columns:1fr;gap:16px}@media (min-width:768px){.calculator-dose-grid{grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(2,1fr)}}.calculator-ratio-input{width:64px;border-radius:0;border:0;border-bottom:1px solid var(--color-border);background:transparent;padding:0 4px;font-size:var(--text-body-md);font-weight:600;text-align:center;color:var(--color-text-primary);transition:border-color var(--motion-fast)}.calculator-ratio-input:focus{border-bottom-color:var(--color-info);outline:none}.calculator-lock-button{min-width:44px;min-height:44px;padding:8px;border:none;background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--motion-fast)}.calculator-lock-button:hover{background:var(--color-surface-subtle);border-radius:var(--radius-sm)}.calculator-dose-badge{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;border-radius:var(--radius-sm);font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.calculator-result-box{width:100%;padding:12px;border:1px solid var(--color-info);border-radius:var(--radius-card);background:var(--color-info-tint);text-align:center}.calculator-result-box-purple{border-color:var(--color-accent-primary);background:var(--color-accent-light)}.calculator-result-label{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--color-text-secondary);display:block;margin-bottom:8px}.calculator-result-value{font-size:32px;font-weight:500;color:var(--color-text-primary);line-height:1.125;font-variant-numeric:tabular-nums}.calculator-result-unit{font-size:12px;color:var(--color-text-secondary);font-weight:400;margin-left:4px}.calculator-metric-row{display:flex;align-items:baseline;gap:8px}.calculator-metric-card{border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);padding:24px}.calculator-info-badge{background:var(--color-info-tint);color:var(--color-info-strong)}.calculator-info-badge,.calculator-warning-badge{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;border-radius:var(--radius-sm);font-size:12px;font-weight:600}.calculator-warning-badge{background:var(--color-warning-tint);color:var(--color-warning)}.calculator-alert-base{border-left:4px solid;padding:16px;border-radius:var(--radius-sm);display:flex;align-items:flex-start;gap:12px}.calculator-alert-error{border-color:var(--color-error);background:var(--color-error-tint);color:var(--color-text-primary)}.calculator-alert-warning{border-color:var(--color-warning);background:var(--color-warning-tint);color:var(--color-text-primary)}.calculator-alert-info{border-color:var(--color-info);background:var(--color-info-tint);color:var(--color-text-primary)}.calculator-flex{display:flex}.calculator-flex-col{display:flex;flex-direction:column}.calculator-flex-row{display:flex;flex-direction:row}.calculator-flex-center{justify-content:center}.calculator-flex-center,.calculator-items-center{display:flex;align-items:center}.calculator-items-baseline{display:flex;align-items:baseline}.calculator-items-start{display:flex;align-items:flex-start}.calculator-justify-between{display:flex;justify-content:space-between}.calculator-justify-end{display:flex;justify-content:flex-end}.calculator-justify-center{display:flex;justify-content:center}.calculator-grid{display:grid}.calculator-grid-2{display:grid;grid-template-columns:repeat(2,1fr)}.calculator-grid-3{display:grid;grid-template-columns:repeat(3,1fr)}.calculator-grid-4{display:grid;grid-template-columns:repeat(4,1fr)}.calculator-hidden{display:none}.calculator-relative{position:relative}.calculator-absolute{position:absolute}.calculator-overflow-auto{overflow:auto}.calculator-overflow-hidden{overflow:hidden}.calculator-scroll-y{overflow-y:auto}.calculator-gap-xs{gap:4px}.calculator-gap-sm{gap:8px}.calculator-gap-md{gap:12px}.calculator-gap-lg{gap:16px}.calculator-gap-xl{gap:24px}.calculator-gap-2xl{gap:32px}.calculator-stack-xs{display:flex;flex-direction:column;gap:4px}.calculator-stack-sm{display:flex;flex-direction:column;gap:8px}.calculator-stack-md{display:flex;flex-direction:column;gap:12px}.calculator-stack-lg{display:flex;flex-direction:column;gap:24px}.calculator-stack-xl{display:flex;flex-direction:column;gap:32px}.calculator-mt-xxs{margin-top:2px}.calculator-mt-xs{margin-top:4px}.calculator-mt-sm{margin-top:8px}.calculator-mt-md{margin-top:16px}.calculator-mt-lg{margin-top:24px}.calculator-mb-xxs{margin-bottom:2px}.calculator-mb-xs{margin-bottom:4px}.calculator-mb-sm{margin-bottom:12px}.calculator-mb-md{margin-bottom:16px}.calculator-mb-lg{margin-bottom:32px}.calculator-mb-xl{margin-bottom:40px}.calculator-mb-2xl{margin-bottom:48px}.calculator-pl-xxs{padding-left:4px}.calculator-p-md{padding:16px}.calculator-p-lg{padding:24px}.calculator-px-xs{padding-left:4px;padding-right:4px}.calculator-px-sm{padding-left:8px;padding-right:8px}.calculator-px-md{padding-left:12px;padding-right:12px}.calculator-px-lg{padding-left:16px;padding-right:16px}.calculator-py-xs{padding-top:4px;padding-bottom:4px}.calculator-py-sm{padding-top:8px;padding-bottom:8px}.calculator-py-md{padding-top:12px;padding-bottom:12px}.calculator-btn-padding{padding:8px 16px}.calculator-card-padding{padding:12px}.calculator-input-minimal{padding:0 4px}.calculator-section-padding{padding:24px}.calculator-px-4{padding-left:var(--space-safe-area);padding-right:var(--space-safe-area)}@media (min-width:768px){.calculator-px-4{padding-left:var(--space-lg);padding-right:var(--space-lg)}}.calculator-py-2{padding-top:8px;padding-bottom:8px}.calculator-px-3{padding-left:12px;padding-right:12px}.calculator-py-3{padding-top:12px;padding-bottom:12px}.calculator-pt-6{padding-top:24px}.calculator-pb-6{padding-bottom:24px}.calculator-pt-8{padding-top:32px}.calculator-pb-8{padding-bottom:32px}.calculator-px-6{padding-left:24px;padding-right:24px}.calculator-px-8{padding-left:32px;padding-right:32px}@media (min-width:768px){.calculator-md-px-6{padding-left:var(--space-xxl);padding-right:var(--space-xxl)}.calculator-md-pt-8{padding-top:32px}.calculator-md-pb-8{padding-bottom:32px}.calculator-md-px-8{padding-left:32px;padding-right:32px}}@media (min-width:1024px){.calculator-lg-px-8{padding-left:var(--space-xxl);padding-right:var(--space-xxl)}}.calculator-text-xs{font-size:10px;text-transform:uppercase;letter-spacing:.05em}.calculator-text-sm{font-size:12px}.calculator-text-base{font-size:var(--text-body-md)}.calculator-text-lg{font-size:16px}.calculator-text-xl{font-size:18px}@media (min-width:768px){.calculator-text-xl{font-size:20px}}.calculator-text-2xl{font-size:20px}@media (min-width:768px){.calculator-text-2xl{font-size:24px}}.calculator-text-3xl{font-size:24px}@media (min-width:768px){.calculator-text-3xl{font-size:32px}}.calculator-text-4xl{font-size:32px}.calculator-text-result{font-size:32px;font-variant-numeric:tabular-nums}.calculator-font-light{font-weight:300}.calculator-font-normal{font-weight:400}.calculator-font-medium{font-weight:500}.calculator-font-semibold{font-weight:600}.calculator-font-bold{font-weight:700}.calculator-font-mono{font-family:var(--font-mono)}.calculator-font-data{font-family:var(--font-data)}.calculator-text-center{text-align:center}.calculator-text-left{text-align:left}.calculator-text-right{text-align:right}.calculator-leading-tight{line-height:1.143}.calculator-leading-snug{line-height:1.429}.calculator-leading-normal{line-height:1.714}.calculator-leading-relaxed{line-height:1.857}.calculator-tracking-wide{letter-spacing:.05em}.calculator-tracking-wider{letter-spacing:.08em}.calculator-uppercase{text-transform:uppercase}.calculator-tabular-nums{font-variant-numeric:tabular-nums}.calculator-text-primary{color:var(--color-text-primary)}.calculator-text-body{color:var(--color-text-body)}.calculator-text-secondary{color:var(--color-text-secondary)}.calculator-text-tertiary{color:var(--color-text-tertiary)}.calculator-text-info{color:var(--color-info)}.calculator-text-info-strong{color:var(--color-info-strong)}.calculator-text-success{color:var(--color-success)}.calculator-text-warning{color:var(--color-warning)}.calculator-text-error{color:var(--color-error)}.calculator-text-accent{color:var(--color-accent-primary)}.calculator-text-inverse{color:white}.calculator-bg-surface{background:var(--color-surface)}.calculator-bg-page{background:var(--color-page-tool)}.calculator-bg-info-light{background:var(--color-info-tint)}.calculator-bg-info{background:var(--color-info-medium)}.calculator-bg-success-light{background:var(--color-success-tint)}.calculator-bg-success{background:var(--color-success-medium)}.calculator-bg-warning-light{background:var(--color-warning-tint)}.calculator-bg-warning{background:var(--color-warning-medium)}.calculator-bg-error-light{background:var(--color-error-tint)}.calculator-bg-accent-light{background:var(--color-accent-light)}.calculator-bg-accent{background:var(--color-accent-medium)}.calculator-bg-transparent{background:transparent}.calculator-border-default{border-color:var(--color-border)}.calculator-border-info{border-color:var(--color-info)}.calculator-border-success{border-color:var(--color-success)}.calculator-border-warning{border-color:var(--color-warning)}.calculator-border-error{border-color:var(--color-error)}.calculator-border-accent{border-color:var(--color-accent-primary)}.calculator-hover-bg-slate-50:hover{background:var(--color-surface-subtle)}.calculator-hover-bg-blue-50:hover{background:var(--color-info-tint)}.calculator-hover-bg-purple-50:hover{background:var(--color-accent-light)}.calculator-hover-border-blue:hover{border-color:var(--color-info)}.calculator-hover-border-purple:hover{border-color:var(--color-accent-primary)}.calculator-border-2{border-width:1px;border-style:solid}.calculator-border-4{border-width:4px;border-style:solid}.calculator-border-b-2{border-bottom-width:1px;border-bottom-style:solid}.calculator-border-t{border-top-width:1px;border-top-style:solid}.calculator-rounded-md{border-radius:var(--radius-md)}.calculator-rounded-lg{border-radius:var(--radius-card)}.calculator-rounded-xl{border-radius:var(--radius-lg)}.calculator-rounded-full{border-radius:9999px}.calculator-w-full{width:100%}.calculator-w-10{width:40px}.calculator-w-16{width:64px}.calculator-w-20{width:80px}.calculator-h-full{height:100%}.calculator-h-8{height:32px}.calculator-h-9{height:36px}.calculator-h-10{height:40px}.calculator-h-4{height:16px}.calculator-w-4{width:16px}.calculator-h-5{height:20px}.calculator-w-5{width:20px}.calculator-max-w-3xl{max-width:48rem}.calculator-max-w-5xl{max-width:64rem}.calculator-mx-auto{margin-left:auto;margin-right:auto}.calculator-transition{transition:all .15s ease}.calculator-cursor-pointer{cursor:pointer}.calculator-focus-ring:focus{outline:4px solid var(--color-accent-primary);outline-offset:4px}.calculator-focus-none:focus{outline:none;box-shadow:none}.calculator-hover-lift:hover{transform:translateY(-2px)}.calculator-hover-scale:hover{transform:scale(.98)}@media (min-width:768px){.calculator-md-gap-8{gap:32px}.calculator-md-text-base{font-size:16px}.calculator-md-grid-cols-2{grid-template-columns:repeat(2,1fr)}}