/* Technical pages use explicit semantic CSS because output.css has no build source in this repo. */
:root {
    --technical-ink: #142019;
    --technical-muted: #59645e;
    --technical-line: #d7ddd9;
    --technical-soft: #f4f6f4;
    --technical-green: #067f38;
    --technical-green-dark: #045d28;
}

.instrument-hero {
    background: #111a15;
    border-bottom: 1px solid #26362d;
    padding: 3.5rem 0;
}

.instrument-kicker {
    display: inline-block;
    margin-bottom: 1rem;
    color: #91d3aa;
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.calculator-workspace {
    max-width: 1180px;
    margin: 0 auto;
}

.calculator-tabs {
    display: inline-grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    margin-bottom: 1.5rem;
    padding: 3px;
    border: 1px solid var(--technical-line);
    background: var(--technical-soft);
}

.calculator-tab {
    min-height: 42px;
    padding: .65rem 1.15rem;
    border: 0;
    background: transparent;
    color: #415047;
    font-weight: 700;
    cursor: pointer;
}

.calculator-tab[aria-selected="true"] {
    background: #fff;
    color: var(--technical-green-dark);
    box-shadow: inset 0 -2px 0 var(--technical-green);
}

.calculator-tab:focus-visible,
.calculator-control :is(input, select, button):focus-visible,
.calculator-actions :is(a, button):focus-visible {
    outline: 3px solid rgba(6, 127, 56, .28);
    outline-offset: 2px;
}

.calculator-grid {
    display: grid;
    grid-template-columns: minmax(0, 440px) minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
}

.calculator-control {
    border-top: 3px solid var(--technical-ink);
    padding-top: 1.4rem;
}

.calculator-control h2,
.calculator-results h2 {
    margin: 0 0 1.25rem;
    font-size: .78rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.calculator-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.15rem;
}

.calculator-fields-three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.calculator-fields.hidden {
    display: none;
}

.calculator-field-wide {
    grid-column: 1 / -1;
}

.calculator-control .form-label {
    display: block;
    margin-bottom: .4rem;
    color: #243229;
    font-size: .8rem;
    font-weight: 700;
}

.calculator-control .form-input,
.calculator-control .form-select {
    width: 100%;
    min-height: 46px;
    border: 1px solid #9ca8a1;
    border-radius: 4px;
    background: #fff;
    color: var(--technical-ink);
    font: inherit;
}

.calculator-control .form-input {
    padding: .72rem 6.8rem .72rem .8rem;
}

.calculator-control .form-input.form-input-no-suffix {
    padding: .72rem .8rem;
}

.field-unit {
    display: block;
    margin-top: .15rem;
    color: var(--technical-muted);
    font-size: .68rem;
    font-weight: 600;
    line-height: 1.2;
}

.substrate-basis-note {
    margin: 0;
    padding: .75rem .85rem;
    border-left: 2px solid var(--technical-green);
    background: #f3f7f4;
    color: var(--technical-muted);
    font-size: .75rem;
    line-height: 1.45;
}

.calculator-control .form-select {
    padding: .72rem 2.25rem .72rem .8rem;
}

.input-group {
    position: relative;
}

.input-suffix {
    position: absolute;
    top: 50%;
    right: .75rem;
    transform: translateY(-50%);
    max-width: 5.8rem;
    color: #5d6962;
    font-size: .72rem;
    font-weight: 700;
    line-height: 1.15;
    text-align: right;
    pointer-events: none;
}

.field-error {
    margin-top: .35rem;
    color: #a51d1d;
    font-size: .76rem;
}

.calculator-note {
    margin-top: 1.35rem;
    padding: 1rem 0 0 1rem;
    border-top: 1px solid var(--technical-line);
    border-left: 3px solid #94a29a;
}

.calculator-note h3 {
    margin: 0 0 .35rem;
    font-size: .82rem;
}

.calculator-note p {
    margin: 0;
    color: var(--technical-muted);
    font-size: .82rem;
}

.calculator-results {
    position: sticky;
    top: 92px;
    border-top: 3px solid var(--technical-green);
    padding-top: 1.4rem;
}

.metric-primary {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--technical-line);
}

.metric-primary .metric-label,
.metric-secondary .metric-label {
    display: block;
    color: var(--technical-muted);
    font-size: .76rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.metric-primary .metric-value {
    display: block;
    margin: .25rem 0;
    color: var(--technical-green-dark);
    font-size: clamp(2.6rem, 5vw, 4.7rem);
    font-weight: 760;
    letter-spacing: -.055em;
    line-height: 1;
}

.metric-unit {
    color: var(--technical-muted);
    font-size: .82rem;
}

.metrics-secondary {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-bottom: 1px solid var(--technical-line);
}

.metric-secondary {
    min-height: 132px;
    padding: 1.1rem 1rem 1.1rem 0;
    border-right: 1px solid var(--technical-line);
}

.metric-secondary + .metric-secondary {
    padding-left: 1rem;
}

.metric-secondary:last-child {
    border-right: 0;
}

.metric-secondary .metric-value {
    display: block;
    margin: .55rem 0 .25rem;
    color: var(--technical-ink);
    font-size: clamp(1.35rem, 2.3vw, 2rem);
    font-weight: 750;
    letter-spacing: -.035em;
    line-height: 1.05;
}

.metric-value {
    font-variant-numeric: tabular-nums;
}

.traceability {
    margin-top: 1.25rem;
    border-top: 1px solid var(--technical-line);
    border-bottom: 1px solid var(--technical-line);
}

.traceability summary {
    padding: .9rem 0;
    color: var(--technical-ink);
    font-size: .82rem;
    font-weight: 750;
    cursor: pointer;
}

.traceability-body {
    padding: 0 0 1rem;
    color: var(--technical-muted);
    font-size: .8rem;
}

.traceability-body p:last-child {
    margin-bottom: 0;
}

.calculator-actions {
    display: flex;
    gap: .75rem;
    margin-top: 1.25rem;
}

.calculator-actions > * {
    flex: 1;
    text-align: center;
}

.power-definitions {
    display: grid;
    grid-template-columns: 12rem 1fr 1fr;
    gap: 2rem;
    max-width: 960px;
    margin: 0 auto;
}

.power-definitions h2 {
    margin: 0;
    font-size: .78rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.power-definition {
    border-left: 1px solid var(--technical-line);
    padding-left: 1.5rem;
}

.power-definition h3 {
    margin: 0 0 .5rem;
    font-size: 1rem;
}

.power-definition p {
    margin: 0;
    color: var(--technical-muted);
    font-size: .9rem;
}

.prose-technical {
    min-width: 0;
    width: 100%;
}

.prose-technical p {
    text-align: left;
}

.prose-technical .content-section {
    padding-top: 1rem;
    margin-bottom: 5rem;
}

.prose-technical .content-section > h2 {
    padding-top: 1rem;
    border-top: 3px solid var(--technical-ink);
    font-size: clamp(1.55rem, 3vw, 2.15rem);
    letter-spacing: -.025em;
}

.technical-callout {
    margin: 2rem 0;
    padding: 1.25rem 0 1.25rem 1.25rem;
    border-top: 1px solid var(--technical-line);
    border-bottom: 1px solid var(--technical-line);
    border-left: 4px solid var(--technical-green);
}

.technical-callout h3 {
    margin-top: 0;
}

.technical-warning {
    margin: 1.5rem 0;
    padding: 1rem 1.15rem;
    border-left: 4px solid #c98208;
    background: #fff8e6;
}

.technical-warning p {
    margin: 0;
    color: #6b4a05;
}

/* Scoped fallbacks for utilities missing from the stale compiled Tailwind file. */
.technical-article .border-2 { border-width: 2px; }
.technical-article .border-enerloop-green { border-color: var(--technical-green); }
.technical-article .bg-green-50 { background-color: #f0fdf4; }
.technical-article .text-enerloop-green,
.technical-article .text-green-600 { color: var(--technical-green-dark); }
.technical-article .text-red-600 { color: #b42318; }
.technical-article .text-right { text-align: right; }
.prose-technical .comparison-table th,
.prose-technical .comparison-table td { padding: .75rem; }

.reactor-list {
    margin: 2rem 0;
    border-top: 1px solid var(--technical-ink);
}

.reactor-plate {
    display: grid;
    grid-template-columns: minmax(220px, 34%) 1fr;
    gap: 1.5rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--technical-line);
}

.reactor-plate img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    background: var(--technical-soft);
}

.reactor-index {
    display: block;
    margin-bottom: .35rem;
    color: var(--technical-green-dark);
    font-size: .72rem;
    font-weight: 750;
    letter-spacing: .08em;
}

.reactor-plate h3 {
    margin: 0 0 .65rem;
    font-size: 1.35rem;
}

.reactor-plate p {
    margin: 0 0 1rem;
    color: var(--technical-muted);
    font-size: .9rem;
}

.reactor-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .65rem 1.25rem;
    margin: 0;
}

.reactor-specs div {
    border-top: 1px solid var(--technical-line);
    padding-top: .5rem;
}

.reactor-specs dt {
    color: #657169;
    font-size: .68rem;
    font-weight: 750;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.reactor-specs dd {
    margin: .15rem 0 0;
    color: var(--technical-ink);
    font-size: .8rem;
}

.data-band {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin: 0 0 4rem;
    border-top: 3px solid var(--technical-green);
    border-bottom: 1px solid var(--technical-line);
}

.data-band-item {
    min-height: 138px;
    padding: 1.15rem;
    border-right: 1px solid var(--technical-line);
}

.data-band-item:last-child {
    border-right: 0;
}

.data-band-label {
    display: block;
    color: var(--technical-muted);
    font-size: .68rem;
    font-weight: 750;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.data-band-value {
    display: block;
    margin: .55rem 0 .25rem;
    color: var(--technical-green-dark);
    font-size: clamp(1.35rem, 2.4vw, 2rem);
    font-weight: 760;
    letter-spacing: -.035em;
    line-height: 1.05;
    font-variant-numeric: tabular-nums;
}

.data-band-note {
    display: block;
    color: var(--technical-muted);
    font-size: .72rem;
}

.decision-ledger,
.process-ledger {
    margin: 2rem 0;
    border-top: 1px solid var(--technical-ink);
}

.decision-row,
.process-row {
    display: grid;
    grid-template-columns: 2.5rem 1fr 1.35fr;
    gap: 1.25rem;
    padding: 1.1rem 0;
    border-bottom: 1px solid var(--technical-line);
}

.process-row {
    grid-template-columns: 2.5rem 12rem 1fr;
}

.decision-number {
    color: var(--technical-green-dark);
    font-size: .72rem;
    font-weight: 750;
    letter-spacing: .06em;
}

.decision-row h3,
.process-row h3 {
    margin: 0;
    font-size: .95rem;
}

.decision-row p,
.process-row p {
    margin: 0;
    color: var(--technical-muted);
    font-size: .84rem;
}

.technical-tool-link {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: center;
    margin: 2rem 0 1rem;
    padding: 1.5rem 0;
    border-top: 3px solid var(--technical-green);
    border-bottom: 1px solid var(--technical-line);
}

.technical-tool-link h3 {
    margin: .25rem 0 .4rem;
}

.technical-tool-link p {
    margin: 0;
    color: var(--technical-muted);
}

.technical-tool-label {
    color: var(--technical-green-dark);
    font-size: .7rem;
    font-weight: 750;
    letter-spacing: .08em;
    text-transform: uppercase;
}

@media (max-width: 900px) {
    .calculator-grid {
        grid-template-columns: 1fr;
    }

    .calculator-grid {
        gap: 2.5rem;
    }

    .calculator-results {
        position: static;
    }

    .metrics-secondary,
    .data-band {
        grid-template-columns: 1fr 1fr;
    }

    .data-band-item:nth-child(2) {
        border-right: 0;
    }

    .data-band-item:nth-child(-n+2) {
        border-bottom: 1px solid var(--technical-line);
    }

    .power-definitions {
        grid-template-columns: 1fr 1fr;
    }

    .power-definitions > h2 {
        grid-column: 1 / -1;
    }
}

@media (max-width: 640px) {
    .instrument-hero {
        padding: 2.75rem 0;
    }

    .calculator-tabs {
        display: grid;
        width: 100%;
    }

    .calculator-fields,
    .calculator-fields-three,
    .metrics-secondary,
    .data-band,
    .power-definitions,
    .reactor-plate,
    .reactor-specs,
    .decision-row,
    .process-row {
        grid-template-columns: 1fr;
    }

    .calculator-results {
        order: 2;
    }

    .metric-primary .metric-value {
        font-size: 2.7rem;
    }

    .metric-secondary,
    .metric-secondary + .metric-secondary,
    .data-band-item,
    .data-band-item:nth-child(2) {
        min-height: 0;
        padding: 1rem 0;
        border-right: 0;
        border-bottom: 1px solid var(--technical-line);
    }

    .calculator-actions {
        flex-direction: column;
    }

    .technical-tool-link {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .power-definition {
        padding: 1rem 0 0;
        border-top: 1px solid var(--technical-line);
        border-left: 0;
    }

    .prose-technical .content-section {
        margin-bottom: 3.5rem;
    }

    .reactor-plate {
        gap: 1rem;
    }

    .decision-row,
    .process-row {
        gap: .35rem;
    }
}