/* Calculator pages. Loaded only by /tools/*, after landing-pages.css. */

.calc {
    margin: 34px 0 10px;
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.025);
}

.calc-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.calc-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
}

.calc-field label {
    color: var(--text-2);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.calc-field input,
.calc-field select {
    width: 100%;
    min-height: 46px;
    padding: 10px 12px;
    border: 1px solid var(--line-strong);
    border-radius: 10px;
    background: var(--bg);
    color: var(--text-1);
    font: inherit;
    font-size: 0.95rem;
    appearance: none;
}

.calc-field select {
    background-image: linear-gradient(45deg, transparent 50%, var(--text-2) 50%), linear-gradient(135deg, var(--text-2) 50%, transparent 50%);
    background-position: calc(100% - 18px) 20px, calc(100% - 13px) 20px;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    padding-right: 34px;
}

.calc-field input:focus,
.calc-field select:focus {
    outline: 2px solid rgba(251, 55, 71, 0.55);
    outline-offset: 2px;
    border-color: var(--brand);
}

.calc button.button {
    margin-top: 20px;
    cursor: pointer;
}

.calc-result {
    margin-top: 22px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
    min-height: 34px;
}

.calc-result:empty {
    display: none;
}

.calc-value {
    display: block;
    color: var(--text-1);
    font-family: var(--font-mono);
    font-size: clamp(1.9rem, 5vw, 2.6rem);
    line-height: 1.1;
    letter-spacing: -0.04em;
}

.calc-value small {
    font-family: var(--font-display);
    font-size: 0.9rem;
    letter-spacing: 0;
    color: var(--text-2);
}

.calc-caption {
    margin: 10px 0 0;
    color: var(--text-2);
    font-size: 0.9rem;
    line-height: 1.6;
}

.calc-warning {
    margin: 12px 0 0;
    padding: 12px 14px;
    border-left: 2px solid var(--warn);
    background: rgba(246, 167, 19, 0.08);
    color: var(--text-2);
    font-size: 0.9rem;
    line-height: 1.6;
}

.calc-error {
    margin: 0;
    color: var(--crit);
    font-size: 0.92rem;
    line-height: 1.6;
}

.calc-note {
    margin: 16px 0 0;
    color: var(--text-3);
    font-size: 0.82rem;
    line-height: 1.6;
}

.calc-note a {
    color: var(--text-2);
}

.prose pre {
    margin: 24px 0;
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    overflow-x: auto;
}

.prose pre code {
    padding: 0;
    border: 0;
    background: none;
    font-size: 0.9rem;
    white-space: pre;
}

@media (max-width: 640px) {
    .calc {
        padding: 18px;
        border-radius: 14px;
    }

    .calc-grid {
        grid-template-columns: 1fr;
    }
}