/* Wave 2D — CALCULATOR family (engagement.numeric_input + composition.computed_output).
 * Uses --bk-* tokens only. No raw hex. Mobile: 44px hit targets ≤600px.
 */

/* ─── engagement.numeric_input ─────────────────────────────────── */
.psc-calc-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 10px 12px;
    background: var(--bk-card, #fff);
    border: 1px solid var(--bk-border, #e2e4e8);
    border-radius: var(--bk-radius-sm, 6px);
    position: relative;
}

.psc-calc-field-label {
    display: flex;
    align-items: baseline;
    gap: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--bk-navy, #1a1a2e);
    letter-spacing: 0.02em;
}

.psc-calc-field-name { flex: 0 0 auto; }

.psc-calc-field-unit {
    font-weight: 400;
    font-size: 0.72rem;
    color: var(--bk-text-muted, #72727e);
    font-style: italic;
}

.psc-calc-req {
    color: var(--bk-tier-red, #DC2626);
    font-weight: 700;
    margin-left: 2px;
}

.psc-calc-field-input {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 8px 10px;
    font-size: 0.95rem;
    font-family: ui-monospace, SF Mono, Menlo, monospace;
    color: var(--bk-navy, #1a1a2e);
    background: var(--bk-surface-stripe, #f8f9fb);
    border: 1px solid var(--bk-border, #e2e4e8);
    border-radius: var(--bk-radius-sm, 6px);
    transition: border-color 0.12s ease, box-shadow 0.12s ease;
    -moz-appearance: textfield;
}

.psc-calc-field-input::-webkit-outer-spin-button,
.psc-calc-field-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.psc-calc-field-input:hover {
    border-color: var(--bk-gold, #c29954);
}

.psc-calc-field-input:focus,
.psc-calc-field-input:focus-visible {
    outline: none;
    border-color: var(--bk-gold, #c29954);
    box-shadow: 0 0 0 3px var(--bk-gold-tint, rgba(194, 153, 84, 0.25));
    background: var(--bk-card, #fff);
}

.psc-calc-field-input:invalid {
    border-color: var(--bk-tier-red, #DC2626);
}

.psc-calc-field-input:disabled {
    background: var(--bk-surface-stripe, #f8f9fb);
    color: var(--bk-text-muted, #72727e);
    cursor: not-allowed;
}

.psc-calc-field-help {
    font-size: 0.72rem;
    color: var(--bk-text-muted, #72727e);
    line-height: 1.3;
}

.psc-calc-field-status {
    position: absolute;
    top: 6px;
    right: 8px;
    font-size: 0.68rem;
    color: var(--bk-text-muted, #72727e);
    min-height: 12px;
}

.psc-calc-field-status[data-tone="ok"] { color: var(--bk-tier-green, #16A34A); }
.psc-calc-field-status[data-tone="err"] { color: var(--bk-tier-red, #DC2626); }

/* ─── composition.computed_output ──────────────────────────────── */
.psc-calc-out {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 12px 14px;
    background: var(--bk-surface-stripe, #f8f9fb);
    border: 1px solid var(--bk-border, #e2e4e8);
    border-left: 3px solid var(--bk-navy, #1a1a2e);
    border-radius: var(--bk-radius-sm, 6px);
}

.psc-calc-out[data-tone="success"] {
    border-left-color: var(--bk-tier-green, #16A34A);
}

.psc-calc-out[data-tone="warn"] {
    border-left-color: var(--bk-tier-red, #DC2626);
}

.psc-calc-out-head {
    display: flex;
    align-items: baseline;
    gap: 6px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--bk-text-muted, #72727e);
}

.psc-calc-out-label {
    color: var(--bk-navy, #1a1a2e);
}

.psc-calc-out-unit {
    font-weight: 400;
    font-style: italic;
}

.psc-calc-out-body {
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
}

.psc-calc-out-value {
    font-family: ui-monospace, SF Mono, Menlo, monospace;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--bk-navy, #1a1a2e);
    background: transparent;
    padding: 0;
    letter-spacing: -0.01em;
}

.psc-calc-out[data-tone="success"] .psc-calc-out-value {
    color: var(--bk-tier-green, #16A34A);
}

.psc-calc-out[data-tone="warn"] .psc-calc-out-value {
    color: var(--bk-tier-red, #DC2626);
}

.psc-calc-out-value--empty {
    color: var(--bk-text-muted, #72727e) !important;
    font-weight: 400;
}

.psc-calc-out-empty-hint {
    font-size: 0.75rem;
    color: var(--bk-text-muted, #72727e);
    font-style: italic;
}

.psc-calc-out-formula {
    font-family: ui-monospace, SF Mono, Menlo, monospace;
    font-size: 0.75rem;
    color: var(--bk-text-muted, #72727e);
    background: var(--bk-card, #fff);
    padding: 2px 6px;
    border-radius: var(--bk-radius-sm, 6px);
    border: 1px solid var(--bk-border, #e2e4e8);
    align-self: flex-start;
}

.psc-calc-out-help {
    font-size: 0.72rem;
    color: var(--bk-text-muted, #72727e);
    line-height: 1.3;
}

/* Live-preview flash — subtle attention pulse when JS updates the value. */
.psc-calc-out-value.is-fresh {
    animation: psc-calc-flash 480ms ease-out;
}

@keyframes psc-calc-flash {
    0%   { background: var(--bk-gold-tint, rgba(194, 153, 84, 0.28)); }
    100% { background: transparent; }
}

/* ─── Mobile — 44px hit targets ────────────────────────────────── */
@media (max-width: 600px) {
    .psc-calc-field { padding: 12px; }
    .psc-calc-field-input {
        min-height: 44px;
        font-size: 1rem;
        padding: 10px 12px;
    }
    .psc-calc-out { padding: 14px; }
    .psc-calc-out-value { font-size: 1.9rem; }
}