/* ============================================================
   Herramientas · Conversor de unidades — estilos propios de esta vista.
   (El header/footer/tema general vive en assets/css/main.css)
   Sin var() por el mismo motivo que main.css: compatibilidad
   con el validador CSS de NetBeans 8.2.
   ============================================================ */

.conv-layout {
    max-width: 620px;
    margin: 0 auto;
}

.conv-card {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.10);
    border-radius: 14px;
    padding: 26px 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

/* ── CAMPOS ─────────────────────────────────────────────── */
.conv-field label {
    display: block;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: #5b6472;
    margin-bottom: 6px;
}
.conv-field select,
.conv-field input[type="number"],
.conv-compound-pair select {
    width: 100%;
    background: #eef2f7;
    color: #1b2433;
    border: 1px solid rgba(15, 23, 42, 0.10);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.92rem;
    font-family: 'Source Sans 3', sans-serif;
    outline: none;
    transition: border-color .2s;
}
.conv-field select:focus,
.conv-field input[type="number"]:focus,
.conv-compound-pair select:focus { border-color: #e8a020; }

/* Par numerador/denominador de una magnitud compuesta (velocidad, etc.) */
.conv-compound-pair {
    display: flex;
    align-items: center;
    gap: 6px;
}
.conv-compound-pair > select { flex: 1; min-width: 0; }
.conv-compound-den {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    min-width: 0;
}
.conv-compound-den select { flex: 1; min-width: 0; }
.conv-compound-slash {
    color: #5b6472;
    font-weight: 700;
    flex: none;
}

/* ── DE / INTERCAMBIAR / A ─────────────────────────────────── */
.conv-units-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 10px;
    align-items: end;
}
.conv-swap {
    background: #f5f7fb;
    border: 1px solid rgba(15, 23, 42, 0.10);
    color: #a8710f;
    border-radius: 50%;
    width: 42px;
    height: 42px;
    font-size: 1.15rem;
    line-height: 1;
    cursor: pointer;
    transition: transform .2s, border-color .2s;
}
.conv-swap:hover { border-color: #e8a020; transform: rotate(180deg); }

/* ── RESULTADO ──────────────────────────────────────────── */
.conv-result {
    background: #f5f7fb;
    border: 1px solid rgba(232, 160, 32, 0.3);
    border-radius: 12px;
    padding: 18px 16px;
    text-align: center;
    font-family: 'Fira Mono', monospace;
    font-size: 1.35rem;
    color: #a8710f;
    word-break: break-word;
}
.conv-result-eq {
    color: #5b6472;
    margin: 0 10px;
    font-size: 1.1rem;
}

/* ── CÁLCULO (siempre visible): método del factor de conversión ───── */
.conv-calc {
    background: #eef2f7;
    border: 1px solid rgba(15, 23, 42, 0.10);
    border-radius: 10px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.conv-calc-label {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: #5b6472;
}

.conv-calc-chain {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    font-family: 'Fira Mono', monospace;
    font-size: 0.92rem;
    color: #1b2433;
}

/* Un "bloque" valor+unidad, p.ej. "5 km" o "36 km/h" */
.conv-unit {
    white-space: nowrap;
}

/* Operadores × / = entre bloques */
.conv-chain-op {
    color: #5b6472;
    font-size: 1.05rem;
    margin: 0 2px;
}
.conv-chain-eq { color: #1b2433; }
.conv-chain-msg { color: #5b6472; font-style: italic; }

/* Fracción (factor de conversión que vale 1): numerador / raya / denominador */
.conv-frac {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    vertical-align: middle;
    line-height: 1.5;
}
.conv-frac-num {
    padding: 0 4px 2px;
    border-bottom: 2px solid #1b2433;
}
.conv-frac-den {
    padding: 2px 4px 0;
}

/* Unidad que se cancela: raya diagonal roja, como al hacerlo a mano */
.conv-cancel {
    position: relative;
    display: inline-block;
}
.conv-cancel::after {
    content: '';
    position: absolute;
    left: -3px;
    right: -3px;
    top: 48%;
    border-top: 2px solid #c23636;
    transform: rotate(-16deg);
}

/* Temperatura: no es un factor multiplicativo, se muestra como fórmula */
.conv-chain-formula {
    font-family: 'Fira Mono', monospace;
    font-size: 0.92rem;
    color: #5b6472;
}
.conv-chain-applied {
    color: #1b2433;
    font-size: 1rem;
}

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 480px) {
    .conv-units-row {
        grid-template-columns: 1fr;
    }
    .conv-swap {
        justify-self: center;
        transform: rotate(90deg);
    }
    .conv-swap:hover { transform: rotate(270deg); }
}