/* --- Global Styles & Variables --- */
:root {
    --pdt-primary-color: #0073aa;
    --pdt-dark-text: #333;
    --pdt-light-text: #555;
    --pdt-border-color: #ddd;
    --pdt-bg-light: #f9f9f9;
    --pdt-success-color: #4CAF50;
    --pdt-error-color: #D32F2F;
    --pdt-warning-color: #FFC107;
}

.pdt-container {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    max-width: 900px; /* Increased max-width for better desktop layout */
    margin: 20px auto; /* Adjusted margin */
    padding: 20px;
    color: var(--pdt-dark-text);
    line-height: 1.6;
    box-sizing: border-box; /* Ensure padding is included in width */
}

/* --- Typography --- */
.pdt-headline {
    font-size: 2.8em; /* Slightly larger */
    font-weight: 700;
    margin-bottom: 0.25em;
    line-height: 1.2;
    text-align: center;
    color: var(--pdt-primary-color);
}

.pdt-subheadline {
    font-size: 1.3em; /* Slightly larger */
    color: var(--pdt-light-text);
    text-align: center;
    margin-bottom: 0.5em;
}

.pdt-trustline {
    font-size: 1em; /* Slightly larger */
    color: #999;
    text-align: center;
    margin-bottom: 2em; /* More space */
}

.pdt-section-title {
    font-size: 2em; /* Slightly larger */
    font-weight: 600;
    margin-bottom: 0.75em;
    border-bottom: 2px solid var(--pdt-primary-color);
    padding-bottom: 0.5em; /* Adjusted padding */
    color: var(--pdt-dark-text);
    text-align: center; /* Centered for better flow */
}

.pdt-section p {
    margin-bottom: 1em;
}

.pdt-section ul {
    list-style-position: inside;
    padding-left: 0;
    margin-bottom: 1em;
}

.pdt-section ul li {
    margin-bottom: 0.5em;
}


/* --- Sections --- */
.pdt-section {
    margin-bottom: 1.5em; /* Reduced margin for tighter layout */
    padding: 2em;
    background: #fff;
    border-radius: 10px; /* Slightly more rounded */
    box-shadow: 0 6px 20px rgba(0,0,0,0.08); /* More prominent shadow */
}
.pdt-hero {
    background: linear-gradient(135deg, #e0f7fa 0%, #e8eaf6 100%); /* Soft gradient background */
    box-shadow: none;
    padding-top: 2em;
    padding-bottom: 1.5em; /* Reduced padding */
}

.pdt-form-section {
    background-color: var(--pdt-bg-light);
    border: 1px solid var(--pdt-border-color);
    padding-top: 1.5em; /* Reduced padding */
    padding-bottom: 1.5em; /* Reduced padding */
}


/* --- Forms & Buttons --- */
.pdt-form-group {
    margin-bottom: 1.5em;
}
.pdt-form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.6em; /* Adjusted for better spacing */
    color: var(--pdt-dark-text);
}
.pdt-form-group input[type="text"] {
    width: 100%;
    padding: 14px; /* Larger input field */
    border: 1px solid var(--pdt-border-color);
    border-radius: 7px; /* Slightly more rounded */
    font-size: 1.1em; /* Larger font in input */
    box-sizing: border-box;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.pdt-form-group input[type="text"]:focus {
    border-color: var(--pdt-primary-color);
    box-shadow: 0 0 0 3px rgba(0, 115, 170, 0.2);
    outline: none;
}

.pdt-button-primary {
    display: block; /* Ensure it takes full width */
    background-color: var(--pdt-primary-color);
    color: #fff;
    font-size: 1.2em; /* Larger button text */
    font-weight: 600;
    padding: 15px 30px; /* Larger padding */
    border: none;
    border-radius: 7px; /* Slightly more rounded */
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    width: 100%;
    text-align: center;
}
.pdt-button-primary:hover, .pdt-button-primary:focus {
    background-color: #005a87;
    transform: translateY(-2px); /* Slight lift on hover */
}
.pdt-button-primary:disabled {
    background-color: #cccccc; /* Lighter disabled state */
    cursor: not-allowed;
    transform: none;
}

/* --- Messages --- */
.pdt-messages {
    padding: 1em;
    margin-bottom: 1.5em; /* Adjusted margin */
    border-radius: 5px;
    display: none;
    text-align: center;
    font-weight: 500;
}
.pdt-messages.loading { display: block; background-color: #e3f2fd; color: #1565c0; border: 1px solid #90caf9; }
.pdt-messages.success { display: block; background-color: #e8f5e9; color: var(--pdt-success-color); border: 1px solid #a5d6a7; }
.pdt-messages.error { display: block; background-color: #ffebee; color: var(--pdt-error-color); border: 1px solid #ef9a9a; }


/* --- Results & Cards --- */
.pdt-results-section {
    background-color: var(--pdt-bg-light);
    padding: 2.5em; /* More padding */
}

.pdt-overall-score-card {
    background: linear-gradient(45deg, var(--pdt-primary-color), #00aaff); /* Gradient background */
    color: #fff;
    padding: 2em;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 2.5em;
    box-shadow: 0 8px 25px rgba(0, 115, 170, 0.3);
}
.pdt-overall-score-card h3 {
    font-size: 1.5em;
    margin-top: 0;
    color: #fff;
}
.pdt-overall-score-card .pdt-score {
    font-size: 4em;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.2em;
    color: #fff;
}
.pdt-overall-score-card .pdt-insight {
    background: rgba(255,255,255,0.2);
    border-left: none;
    padding: 0.8em 1.5em;
    border-radius: 5px;
    font-size: 1em;
    color: #fff;
    margin-top: 1.5em;
}

.pdt-detailed-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); /* Adjusted minmax for better card sizing */
    gap: 1.8em; /* Increased gap */
    margin-bottom: 2.5em;
}

.pdt-card {
    background: #fff;
    padding: 1.8em; /* More padding */
    border-radius: 10px;
    border: 1px solid var(--pdt-border-color);
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: transform 0.2s ease-in-out;
}
.pdt-card:hover {
    transform: translateY(-5px); /* Slight lift on hover */
}
.pdt-card h4 {
    font-size: 1.3em;
    margin-top: 0;
    margin-bottom: 1em;
    color: var(--pdt-primary-color);
    border-bottom: 1px dashed var(--pdt-border-color);
    padding-bottom: 0.5em;
}
.pdt-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.pdt-card ul li {
    margin-bottom: 0.8em;
    font-size: 0.95em;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.pdt-card ul li strong {
    color: var(--pdt-dark-text);
    font-weight: 600;
}
.pdt-card ul li span {
    color: var(--pdt-light-text);
    text-align: right;
}
.pdt-card .pdt-card-insight {
    font-size: 0.9em;
    color: #777;
    margin-top: 1.5em;
    padding-top: 1em;
    border-top: 1px dashed #eee;
}

.pdt-results-details {
    margin-top: 3em; /* More margin */
    padding-top: 2em;
    border-top: 1px solid var(--pdt-border-color);
}
.pdt-results-details h3 {
    text-align: center;
    color: var(--pdt-primary-color);
    margin-bottom: 1.5em;
}
.pdt-results-details ul {
    list-style-type: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1em;
}
.pdt-results-details li {
    margin-bottom: 0.5em;
    background-color: #f5f5f5;
    padding: 0.8em 1.2em;
    border-radius: 5px;
    border: 1px solid #eee;
}
.pdt-results-details li strong {
    color: var(--pdt-dark-text);
}
.pdt-results-details em {
    color: #777;
    font-style: normal;
    display: block;
    margin-top: 0.3em;
    font-size: 0.9em;
}

.pdt-insight {
    margin-top: 2em;
    padding: 1.2em;
    background-color: #E3F2FD;
    border-left: 5px solid var(--pdt-primary-color);
    border-radius: 5px;
    font-size: 1em;
    color: var(--pdt-dark-text);
}

/* --- Report Section --- */
#pdt-report-section .pdt-form-group {
    text-align: center;
}
.pdt-radio-group {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 1.5em;
}
.pdt-radio-group label {
    font-weight: normal;
    cursor: pointer;
}
.pdt-radio-group input[type="radio"] {
    margin-right: 5px;
}


/* --- Niche Routing --- */
.pdt-routing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.8em;
}
.pdt-routing-cards .pdt-card h4 {
    text-align: center;
}
.pdt-button-secondary {
    display: block;
    padding: 10px 20px;
    border: 1px solid var(--pdt-primary-color);
    color: var(--pdt-primary-color);
    border-radius: 7px;
    text-decoration: none;
    transition: background-color 0.3s, color 0.3s;
    text-align: center;
    margin-top: 1.5em;
}
.pdt-button-secondary:hover {
    background-color: var(--pdt-primary-color);
    color: #fff;
}
.pdt-button-secondary.disabled {
    background-color: #f0f0f0;
    color: #aaa;
    border-color: #ddd;
    cursor: not-allowed;
}

/* --- Footer --- */
.pdt-footer {
    text-align: center;
    margin-top: 3em;
    padding-top: 1.5em;
    border-top: 1px solid #eee;
    color: #999;
    font-size: 0.95em;
}

/* --- Responsive Adjustments --- */
@media (max-width: 768px) {
    .pdt-container {
        margin: 15px auto;
        padding: 15px;
    }
    .pdt-headline {
        font-size: 2.2em;
    }
    .pdt-subheadline {
        font-size: 1.1em;
    }
    .pdt-section-title {
        font-size: 1.7em;
    }
    .pdt-detailed-results-grid {
        grid-template-columns: 1fr; /* Stack cards on small screens */
    }
    .pdt-results-details ul {
        grid-template-columns: 1fr;
    }
    .pdt-overall-score-card .pdt-score {
        font-size: 3.5em;
    }
}

@media (max-width: 480px) {
    .pdt-container {
        padding: 10px;
    }
    .pdt-headline {
        font-size: 1.8em;
    }
    .pdt-section {
        padding: 1.5em;
        margin-bottom: 1.5em;
    }
    .pdt-button-primary {
        font-size: 1.1em;
        padding: 12px 20px;
    }
}