/* Blockchain Cost Calculator - source styles. Last reviewed 2026-04-29. */
/* 2026: Pharos token system, gradient-clip audit gates KPI, L2 card elevation, tabular-nums */

/* ==========================================================================
   Section wrapper
   ========================================================================== */

.blockchain-cost-calculator {
    padding: 64px 0;
}

/* ==========================================================================
   Section heading
   ========================================================================== */

.blockchain-cost-calculator__heading {
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 600;
    color: var(--pharos-text);
    line-height: 1.2;
    letter-spacing: -0.01em;
    margin: 0 0 12px;
    text-align: left;
}

.blockchain-cost-calculator__subheading {
    max-width: 820px;
    line-height: 1.7;
    color: var(--pharos-body);
    font-size: 16px;
    margin: 0 0 16px;
    text-align: left;
}

/* ==========================================================================
   2-column grid
   ========================================================================== */

.blockchain-cost-calculator__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    align-items: start;
}

/* ==========================================================================
   Form panel (left column)
   ========================================================================== */

.blockchain-cost-calculator__form {
    background: var(--pharos-surface);
    border: 1px solid var(--pharos-border);
    border-radius: var(--pharos-radius-lg);
    box-shadow: 0 1px 0 rgba(var(--pharos-surface-rgb), 0.9) inset,
                0 6px 24px -8px rgba(0, 66, 130, 0.09);
    padding: 32px;
    transition: box-shadow var(--pharos-duration-base) var(--pharos-ease-standard);
}

@media (hover: hover) {
    .blockchain-cost-calculator__form:hover {
        box-shadow: 0 1px 0 rgba(var(--pharos-surface-rgb), 0.9) inset,
                    0 8px 32px -12px rgba(0, 66, 130, 0.10);
    }
}

/* ==========================================================================
   Output panel (right column, sticky)
   ========================================================================== */

.blockchain-cost-calculator__output {
    background: var(--pharos-surface);
    border: 1px solid var(--pharos-border);
    border-radius: var(--pharos-radius-lg);
    box-shadow: 0 1px 0 rgba(var(--pharos-surface-rgb), 0.9) inset,
                0 6px 24px -8px rgba(0, 66, 130, 0.09);
    padding: 32px;
    position: sticky;
    top: 24px;
    transition: box-shadow var(--pharos-duration-base) var(--pharos-ease-standard);
}

@media (hover: hover) {
    .blockchain-cost-calculator__output:hover {
        box-shadow: 0 1px 0 rgba(var(--pharos-surface-rgb), 0.9) inset,
                    0 8px 32px -12px rgba(0, 66, 130, 0.10);
    }
}

.blockchain-cost-calculator__output-title {
    font-family: var(--font-display);
    font-size: clamp(18px, 2vw, 20px);
    font-weight: 700;
    color: var(--pharos-text);
    line-height: 1.3;
    letter-spacing: -0.01em;
    margin: 0 0 24px;
    text-align: left;
}

/* ==========================================================================
   Form fields
   ========================================================================== */

.blockchain-cost-calculator__field {
    margin-bottom: 24px;
}

.blockchain-cost-calculator__field:last-child {
    margin-bottom: 0;
}

.blockchain-cost-calculator__label {
    display: block;
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    color: var(--pharos-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
}

.blockchain-cost-calculator__field select {
    width: 100%;
    padding: 10px 14px;
    font-size: 15px;
    color: var(--pharos-text);
    background: var(--pharos-surface);
    border: 1px solid var(--pharos-border);
    border-radius: var(--pharos-radius-input);
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
    transition: border-color var(--pharos-duration-fast) var(--pharos-ease-standard),
                box-shadow var(--pharos-duration-fast) var(--pharos-ease-standard);
}

.blockchain-cost-calculator__field select:focus {
    outline: none;
    border-color: var(--pharos-blue);
    box-shadow: 0 0 0 3px var(--pharos-blue-tint-15);
}

/* Radio fieldset */
.blockchain-cost-calculator__fieldset {
    border: none;
    padding: 0;
    margin: 0 0 24px;
}

.blockchain-cost-calculator__fieldset legend {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    color: var(--pharos-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 10px;
    display: block;
    float: none;
    width: 100%;
}

.blockchain-cost-calculator__radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.blockchain-cost-calculator__radio-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--pharos-body);
    cursor: pointer;
}

.blockchain-cost-calculator__radio-group input[type="radio"] {
    accent-color: var(--pharos-blue);
    width: 16px;
    height: 16px;
    cursor: pointer;
}

/* ==========================================================================
   KPI list (output panel)
   ========================================================================== */

.blockchain-cost-calculator__kpis {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.blockchain-cost-calculator__kpi {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px;
    background: #FAFBFC;
    border: 1px solid var(--pharos-border);
    border-radius: var(--pharos-radius-md);
}

/* dt = chip-style micro label */
.blockchain-cost-calculator__kpi dt {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    color: var(--pharos-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    line-height: 1.4;
}

/* dd = numeric value */
.blockchain-cost-calculator__kpi dd {
    font-family: var(--font-display);
    font-size: clamp(20px, 2.2vw, 24px);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
    color: var(--pharos-text);
    line-height: 1.1;
    margin: 0;
}

/* Audit gates KPI - hero gradient-clip display */
.blockchain-cost-calculator__kpi--highlight {
    background: var(--pharos-blue-tint-08);
    border-color: var(--pharos-blue-tint-20);
}

.blockchain-cost-calculator__kpi--highlight dt {
    color: var(--pharos-blue);
}

.blockchain-cost-calculator__kpi--highlight dd {
    font-family: var(--font-display);
    font-size: clamp(28px, 3.2vw, 36px);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1;
    background: linear-gradient(135deg, var(--pharos-text) 30%, var(--pharos-blue) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--pharos-text); /* fallback for browsers without background-clip:text */
}

/* ==========================================================================
   Recommendation pane
   ========================================================================== */

.blockchain-cost-calculator__recommendation {
    background: var(--pharos-surface);
    border: 1px solid var(--pharos-border);
    border-left: 3px solid var(--pharos-blue);
    border-radius: var(--pharos-radius-md);
    box-shadow: 0 1px 3px rgba(var(--pharos-shadow-navy-rgb), 0.04);
    padding: 16px 18px;
    font-size: 14px;
    line-height: 1.65;
    color: var(--pharos-body);
}

.blockchain-cost-calculator__recommendation p {
    margin: 0 0 8px;
}

.blockchain-cost-calculator__recommendation p:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   Note below recommendation
   ========================================================================== */

.blockchain-cost-calculator__note {
    font-size: 12px;
    color: var(--pharos-muted);
    line-height: 1.55;
    margin: 12px 0 0;
}

/* ==========================================================================
   Reviewed / citation link
   ========================================================================== */

.blockchain-cost-calculator__reviewed {
    margin-top: 20px;
    font-size: 12px;
    color: var(--pharos-muted);
    line-height: 1.5;
}

.blockchain-cost-calculator__reviewed a {
    color: var(--pharos-blue);
    text-decoration: none;
    border-bottom: 1px solid var(--pharos-blue-tint-25);
    transition: color var(--pharos-duration-fast) var(--pharos-ease-standard),
                border-color var(--pharos-duration-fast) var(--pharos-ease-standard);
}

.blockchain-cost-calculator__reviewed a:hover {
    color: var(--pharos-blue-deep);
    border-bottom-color: var(--pharos-blue);
}

.blockchain-cost-calculator__reviewed a:focus-visible {
    outline: 2px solid var(--pharos-blue);
    outline-offset: 2px;
    border-radius: 2px;
}

/* ==========================================================================
   Disclaimer footer
   ========================================================================== */

.blockchain-cost-calculator__foot {
    margin-top: 32px;
}

.blockchain-cost-calculator__disclaimer {
    font-size: 12px;
    color: var(--pharos-muted);
    line-height: 1.6;
    max-width: 900px;
}

/* ==========================================================================
   Responsive - tablet (stack at 959px)
   ========================================================================== */

@media (max-width: 959px) {
    .blockchain-cost-calculator__grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .blockchain-cost-calculator__output {
        position: static;
    }
}

/* ==========================================================================
   Responsive - mobile (scale down at 768px)
   ========================================================================== */

@media (max-width: 768px) {
    .blockchain-cost-calculator {
        padding: 40px 0;
    }

    .blockchain-cost-calculator__heading {
        font-size: 24px;
    }

    .blockchain-cost-calculator__form,
    .blockchain-cost-calculator__output {
        padding: 22px 18px;
    }

    .blockchain-cost-calculator__kpi--highlight dd {
        font-size: 28px;
    }

    .blockchain-cost-calculator__kpi dd {
        font-size: 20px;
    }

    .blockchain-cost-calculator__radio-group {
        flex-direction: column;
        gap: 8px;
    }
}

/* ==========================================================================
   Reduced motion - belt-and-suspenders (tokens.css handles global reset,
   this is explicit for hover lift targets in this module)
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .blockchain-cost-calculator__form,
    .blockchain-cost-calculator__output,
    .blockchain-cost-calculator__field select,
    .blockchain-cost-calculator__reviewed a {
        transition: none;
    }
}

/* === 2026: focus glow ring on inputs === */
.blockchain-cost-calculator__field select:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--pharos-blue-rgb), 0.15),
                0 0 0 4px rgba(var(--pharos-blue-rgb), 0.05);
    border-color: var(--pharos-blue);
}

/* CTA link inside output panel */
.blockchain-cost-calculator__cta {
    margin: 16px 0 0;
    text-align: left;
}

.blockchain-cost-calculator__cta-link {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
    color: var(--pharos-blue);
    text-decoration: none;
    border-bottom: 1px solid var(--pharos-blue-tint-25);
    padding-bottom: 1px;
    transition: color var(--pharos-duration-fast) var(--pharos-ease-standard),
                border-color var(--pharos-duration-fast) var(--pharos-ease-standard);
}

.blockchain-cost-calculator__cta-link:hover {
    color: var(--pharos-blue-deep);
    border-bottom-color: var(--pharos-blue);
}

.blockchain-cost-calculator__cta-link:focus-visible {
    outline: 2px solid var(--pharos-blue);
    outline-offset: 2px;
    border-radius: 2px;
}