/* Styles for Piecewise Function Value Calculator */
.calcufacil-piecewise_function.calcufacil-container {
    max-width: 850px; margin: 25px auto; background: #fdfdfd; padding: 25px;
    border-radius: 10px; box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    display: flex; flex-direction: row; flex-wrap: wrap; gap: 30px;
    font-family: 'Arial', sans-serif; border: 1px solid #673AB7; /* Deep Purple for math */
    box-sizing: border-box;
}
.calcufacil-piecewise_function.calcufacil-container *,
.calcufacil-piecewise_function.calcufacil-container *::before,
.calcufacil-piecewise_function.calcufacil-container *::after { box-sizing: border-box; }

.calcufacil-piecewise_function h2 {
    width: 100%; text-align: center; color: #4527A0; /* Darker Purple */
    margin-top:0; margin-bottom: 15px; font-size: 1.6em;
}
.calcufacil-piecewise_function h4 {
    color: #512DA8; font-size: 1.1em; margin-top: 0px; margin-bottom: 10px;
    padding-bottom: 5px; border-bottom: 1px solid #D1C4E9;
}
.calcufacil-piecewise_function hr {
    border: 0; height: 1px; background: #B39DDB; margin: 20px 0;
}

.calcufacil-piecewise_function .calcufacil-left.calculator-form {
    flex: 1.5; /* More space for form */
    min-width: 380px; padding: 20px; background-color: #fff;
    border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); border: 1px solid #EDE7F6;
}
.calcufacil-piecewise_function .calcufacil-right.results {
    flex: 1; min-width: 300px; background: #F3E5F5; /* Light Purple */
    padding: 25px; border-radius: 8px; border: 1px solid #E1BEE7; 
    box-shadow: 0 2px 8px rgba(0,0,0,0.05); display: flex; flex-direction: column;
    justify-content: flex-start; align-items: center;
}

.calcufacil-piecewise_function .input-group { margin-bottom: 12px; }
.calcufacil-piecewise_function label {
    display: block; font-weight: 600; color: #311B92; /* Deepest Purple */
    margin-bottom: 5px; font-size: 0.9em;
}
.calcufacil-piecewise_function .piecewise-piece {
    border: 1px solid #D1C4E9; padding: 15px; border-radius: 6px; margin-bottom: 15px; background-color: #F9F5FF;
}
.calcufacil-piecewise_function .piecewise-piece .input-group label { font-size: 0.85em; color: #4527A0;}


.calcufacil-piecewise_function input[type="text"] {
    width: 100%; padding: 10px 12px; border: 1px solid #B39DDB; /* Medium Purple border */
    border-radius: 5px; font-size: 0.95em; background: #FEFCFF; font-family: Consolas, Monaco, monospace;
}
.calcufacil-piecewise_function input[type="text"]:focus {
    border-color: #673AB7; box-shadow: 0 0 0 2px rgba(103, 58, 183, 0.2); outline: none;
}
.calcufacil-piecewise_function .note { font-size: 0.85em; color: #512DA8; margin-bottom:15px; line-height: 1.4; background: #f3e5f5; padding:8px; border-radius:4px;}


.calcufacil-piecewise_function button[type="submit"] {
    background-color: #673AB7; /* Deep Purple */ color: #fff; padding: 12px 25px;
    border: none; border-radius: 5px; cursor: pointer; font-size: 1.05em;
    width: 100%; transition: background-color 0.3s ease; font-weight: 600; margin-top:15px;
}
.calcufacil-piecewise_function button[type="submit"]:hover { background-color: #512DA8; }

/* Results Styling */
.calcufacil-piecewise_function .results-header h2 { color: #4527A0; margin-bottom: 20px; font-size: 1.4em; }
.calcufacil-piecewise_function .initial-message {
    text-align: center; color: #4527A0; font-style: italic; padding: 20px;
    background-color: #F3E5F5; border: 1px dashed #B39DDB; border-radius: 5px; width:100%;
}
.calcufacil-piecewise_function .calculation-summary { width: 100%; text-align: left; margin-bottom: 20px; }
.calcufacil-piecewise_function .calculation-summary p { font-size: 1em; color: #311B92; margin-bottom: 8px; }
.calcufacil-piecewise_function .calculation-summary strong { font-weight: bold; color: #4527A0; }

.calcufacil-piecewise_function .main-result {
    display: flex; justify-content: space-between; align-items: center;
    background-color: #D1C4E9; /* Light Purple */ padding: 12px 18px; border-radius: 6px;
    border: 1px solid #B39DDB; font-size: 1.1em; color: #311B92;
    margin-top: 15px; width: 100%;
}
.calcufacil-piecewise_function .main-result.final-result {
    background-color: #512DA8; /* Darker Purple */ color: #fff; font-size: 1.4em;
    padding: 18px 20px; border-color: #4527A0; font-weight: bold;
}
.calcufacil-piecewise_function .main-result span:first-child { font-weight: 500; }
.calcufacil-piecewise_function .main-result span:last-child { font-weight: 700; font-family: Consolas, Monaco, monospace; }


.calcufacil-piecewise_function .errors {
    color: #B71C1C; background-color: #FFEBEE; border: 1px solid #FFCDD2;
    padding: 10px 15px; border-radius: 4px; margin: 15px 0; text-align: center; width:100%;
}
.calcufacil-piecewise_function .errors ul { list-style: none; padding: 0; margin: 0; }

.calcufacil-piecewise_function .disclaimer-box.warning {
    padding: 15px; background-color: #FFF9C4; /* Light Yellow for warning */
    border: 1px solid #FFF59D; border-left: 5px solid #FBC02D; /* Amber accent */
    border-radius: 8px; font-size: 0.85em; color: #424242; width:100%;
}
.calcufacil-piecewise_function .disclaimer-box.warning h4 {
    color: #E65100; font-size: 1.1em; margin-top: 0; margin-bottom: 10px;
}
.calcufacil-piecewise_function .disclaimer-box.warning ul { list-style: disc; margin-left: 20px; padding-left: 0; line-height: 1.5; }

/* Responsive */
@media (max-width: 768px) {
    .calcufacil-piecewise_function.calcufacil-container { flex-direction: column; gap: 20px; padding: 15px; }
    .calcufacil-piecewise_function .calcufacil-left.calculator-form,
    .calcufacil-piecewise_function .calcufacil-right.results { min-width: unset; width: 100%; }
    .calcufacil-piecewise_function h2 { font-size: 1.3em; }
    .calcufacil-piecewise_function .results-header h2 { font-size: 1.2em; }
    .calcufacil-piecewise_function .main-result.final-result { font-size: 1.25em; }
}