/* ======================================================
    SECCIÓN CALCULADORA
   ====================================================== */
.calculator {
    padding: 5rem 2rem;
    background-color: var(--bg-secondary);
}

.calculator::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--text-primary), var(--accent-color), transparent);
    animation: scanLine 4.5s linear infinite;
}

.calculator-container {
    max-width: 800px;
    margin: 0 auto;
}

.calculator-header {
    text-align: center;
    margin-bottom: 3rem;
}

.calculator-title {
    font-size: 2.5rem;
    font-weight: 400;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.calculator-subtitle {
    color: var(--text-tertiary);
    font-size: 1.1rem;
}

.calculator-form {
    background-color: var(--bg-elevated);
    padding: 3rem;
    border-radius: 32px;
    border: 1px solid var(--border-color);
    box-shadow: 0 30px 40px -20px rgba(0, 0, 0, 0.8);
}

.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
}

.form-group-title {
    margin-bottom: 0.5rem;
    color: var(--accent-color);
    font-size: 1rem;
    text-transform: uppercase;
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    align-items: flex-start;
    gap: 1rem;
    max-height: 200px;
    overflow: auto;
}

.checkbox-group div {
    display: flex;
    flex-direction: row;
    gap: 7px;
    align-items: center;
    user-select: none;
}

.checkbox-group div:hover {
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: #ff6b6b;
}

.checkbox-group label {
    display: block;
    width: 100%;
    color: var(--text-secondary);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    cursor: pointer;
}

.checkbox-group label:hover {
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 1rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: var(--transition-smooth);
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

.form-control:focus {
    outline: none;
    border-color: var(--text-primary);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.1);
}

.calculator-result {
    background-color: var(--bg-primary);
    padding: 1rem;
    border-radius: 20px;
    text-align: center;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.result-label {
    display: block;
    color: var(--text-tertiary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.result-value {
    display: block;
    font-size: 3rem;
    font-weight: 300;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1;
}

.result-disclaimer {
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.price-before {
    font-size: 20px;
    color: #888;
    margin-bottom: 4px;
}

.price-old {
    text-decoration: line-through;
    text-decoration-thickness: 1px;
    text-decoration-color: #999;
    text-decoration-skip-ink: none;
    position: relative;
}

.price-now {
    font-size: 32px;
    font-weight: 700;
    color: #ffffff;
}

@media (max-width: 798px) {
    .result-value {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .calculator {
        padding: 3.5rem 1.25rem;
    }

    .calculator-header {
        margin-bottom: 2rem;
    }

    .calculator-title {
        font-size: 2rem;
        line-height: 1.15;
    }

    .calculator-subtitle {
        font-size: 1rem;
    }

    .calculator-form {
        padding: 2rem;
        border-radius: 26px;
    }

    .form-control {
        padding: 0.95rem;
        font-size: 1rem;
        background-position: right 0.9rem center;
    }

    .checkbox-group {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 0.85rem;
        max-height: 190px;
    }

    .result-value {
        font-size: 2.4rem;
    }
}

@media (max-width: 600px) {
    .calculator-container {
        max-width: 100%;
    }

    .calculator-header {
        margin-bottom: 1.4rem;
    }

    .calculator-title {
        font-size: 1.65rem;
        letter-spacing: -0.01em;
    }

    .calculator-subtitle {
        font-size: 0.95rem;
    }

    .calculator-form {
        padding: 1.35rem;
        border-radius: 22px;
    }

    .form-group {
        margin-bottom: 16px;
    }

    .form-group-title {
        font-size: 0.92rem;
        margin-bottom: 0.45rem;
    }

    .form-control {
        padding: 0.85rem 0.95rem;
        font-size: 0.98rem;
        border-radius: 12px;
        background-position: right 0.85rem center;
    }

    .checkbox-group {
        grid-template-columns: 1fr;
        gap: 0.65rem;
        max-height: 220px;
    }

    .checkbox-group div {
        gap: 10px;
    }

    .checkbox-group input[type="checkbox"] {
        width: 22px;
        height: 22px;
    }

    .checkbox-group label {
        font-size: 0.95rem;
        letter-spacing: 0.02em;
    }

    .calculator-result {
        padding: 0.9rem;
        border-radius: 18px;
        margin-bottom: 1.4rem;
    }

    .result-value {
        font-size: 2.05rem;
        margin-bottom: 0.75rem;
    }

    .result-disclaimer {
        font-size: 0.78rem;
    }
}

@media (max-width: 576px) {
    .calculator-title {
        font-size: 2rem;
    }
}

@media (max-width: 420px) {
    .calculator-title {
        font-size: 1.45rem;
    }

    .calculator-form {
        padding: 1.1rem;
        border-radius: 20px;
    }

    .form-control {
        padding: 0.8rem 0.9rem;
        font-size: 0.95rem;
    }

    .result-value {
        font-size: 1.85rem;
    }

    .checkbox-group {
        max-height: 240px;
    }
}