/* Dog Paracetamol Calculator UK - Styles */

:root {
    --dpc-primary: #8c52ff;
    --dpc-primary-dark: #5f2ebf;
    --dpc-primary-accessible: #4a2299;
    --dpc-gradient: linear-gradient(130deg, #5f2ebf 0%, #4a2299 100%);
    --dpc-gradient-accent: linear-gradient(130deg, #8c52ff 0%, #5f2ebf 100%);
    --dpc-text-dark: #333333;
    --dpc-text-body: #2c3e50;
    --dpc-text-muted: #555555;
    --dpc-text-light: #ffffff;
    --dpc-link: #0d47a1;
    --dpc-link-hover: #1565c0;
    --dpc-link-purple: #4a2299;
    --dpc-link-purple-hover: #5f2ebf;
    --dpc-bg-light: #f8f9fa;
    --dpc-border: #dee2e6;
    --dpc-danger: #c62828;
    --dpc-danger-dark: #b71c1c;
    --dpc-warning: #c65100;
    --dpc-warning-dark: #bf360c;
    --dpc-success: #2e7d32;
    --dpc-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --dpc-shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.dpc-uk-calculator {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    max-width: 100%;
    margin: 0 auto;
    padding: 1rem;
    color: var(--dpc-text-dark);
    line-height: 1.6;
}

@media (min-width: 768px) {
    .dpc-uk-calculator {
        max-width: 900px;
        padding: 2rem;
    }
}

/* Links */
.dpc-uk-calculator a {
    color: var(--dpc-link);
    text-decoration: none;
    transition: color 0.2s, text-decoration 0.2s;
}

.dpc-uk-calculator a:hover,
.dpc-uk-calculator a:focus {
    color: var(--dpc-link-hover);
    text-decoration: underline;
}

.dpc-uk-calculator a:focus {
    outline: 2px solid var(--dpc-primary);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Emergency Notice */
.dpc-uk-emergency-notice {
    background: var(--dpc-gradient);
    color: var(--dpc-text-light);
    padding: 1rem 1.25rem;
    margin: 0 0 1.5rem 0;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    box-shadow: var(--dpc-shadow);
}

.dpc-uk-emergency-notice strong {
    color: var(--dpc-text-light);
    font-weight: 700;
}

/* Disclaimer */
.dpc-uk-disclaimer {
    background: #fff3cd;
    border-left: 4px solid var(--dpc-warning);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    border-radius: 4px;
}

.dpc-uk-disclaimer-heading {
    margin: 0 0 0.75rem 0;
    font-size: 1.25rem;
    color: var(--dpc-text-dark);
}

.dpc-uk-disclaimer p {
    margin: 0.5rem 0;
    font-size: 0.95rem;
    color: var(--dpc-text-body);
}

.dpc-uk-warning-cats {
    color: var(--dpc-danger);
    display: block;
    margin: 0.75rem 0;
    font-weight: 700;
}

.dpc-uk-disclaimer-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-top: 1rem;
    padding: 0.75rem;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.dpc-uk-disclaimer-checkbox:hover {
    background: #f8f9fa;
}

.dpc-uk-disclaimer-checkbox input[type="checkbox"] {
    margin-top: 0.25rem;
    width: 18px;
    height: 18px;
    cursor: pointer;
    flex-shrink: 0;
    accent-color: var(--dpc-primary);
}

.dpc-uk-disclaimer-checkbox span {
    font-weight: 600;
    color: var(--dpc-text-dark);
}

/* Safety Accordion */
.dpc-uk-safety-accordion {
    margin-bottom: 1.5rem;
    border: 1px solid var(--dpc-border);
    border-radius: 8px;
    overflow: hidden;
}

.dpc-uk-accordion-toggle {
    width: 100%;
    background: var(--dpc-bg-light);
    border: none;
    padding: 1rem 1.25rem;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--dpc-text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}

.dpc-uk-accordion-toggle:hover,
.dpc-uk-accordion-toggle:focus {
    background: #e9ecef;
    outline: 2px solid var(--dpc-primary);
    outline-offset: -2px;
}

.dpc-uk-accordion-icon {
    transition: transform 0.2s;
    color: var(--dpc-primary-accessible);
}

.dpc-uk-accordion-toggle[aria-expanded="true"] .dpc-uk-accordion-icon {
    transform: rotate(180deg);
}

.dpc-uk-accordion-content {
    padding: 1.25rem;
    background: white;
    color: var(--dpc-text-body);
}

.dpc-uk-accordion-content ul {
    margin: 0.75rem 0;
    padding-left: 1.5rem;
}

.dpc-uk-accordion-content li {
    margin: 0.5rem 0;
    color: var(--dpc-text-body);
}

.dpc-uk-accordion-content strong {
    color: var(--dpc-text-dark);
}

/* Form */
.dpc-uk-form {
    background: white;
    border: 1px solid var(--dpc-border);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--dpc-shadow);
}

@media (min-width: 768px) {
    .dpc-uk-form {
        padding: 2rem;
    }
}

.dpc-uk-form-section {
    margin-bottom: 2rem;
}

.dpc-uk-form-section:last-child {
    margin-bottom: 0;
}

.dpc-uk-section-heading {
    background: var(--dpc-gradient);
    color: var(--dpc-text-light);
    padding: 0.75rem 1rem;
    margin: 0 -1.5rem 1.25rem -1.5rem;
    font-size: 1.15rem;
    font-weight: 700;
}

@media (min-width: 768px) {
    .dpc-uk-section-heading {
        margin: 0 -2rem 1.5rem -2rem;
        padding: 0.75rem 2rem;
        font-size: 1.2rem;
    }
}

.dpc-uk-form-group {
    margin-bottom: 1.25rem;
}

.dpc-uk-form-row {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .dpc-uk-form-row {
        grid-template-columns: 1fr 1fr;
    }
}

.dpc-uk-form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--dpc-text-dark);
}

.dpc-uk-required {
    color: var(--dpc-danger);
}

.dpc-uk-form-group input[type="text"],
.dpc-uk-form-group input[type="number"],
.dpc-uk-form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--dpc-border);
    border-radius: 4px;
    font-size: 1rem;
    color: var(--dpc-text-dark);
    background: white;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.dpc-uk-form-group input::placeholder {
    color: var(--dpc-text-muted);
}

.dpc-uk-form-group input:hover,
.dpc-uk-form-group select:hover {
    border-color: var(--dpc-primary);
}

.dpc-uk-form-group input:focus,
.dpc-uk-form-group select:focus {
    outline: none;
    border-color: var(--dpc-primary);
    box-shadow: 0 0 0 3px rgba(140, 82, 255, 0.1);
}

/* Weight Input */
.dpc-uk-weight-input {
    display: flex;
    gap: 0.5rem;
    align-items: stretch;
}

.dpc-uk-weight-input input {
    flex: 1;
}

.dpc-uk-unit-toggle {
    display: flex;
    border: 2px solid var(--dpc-border);
    border-radius: 4px;
    overflow: hidden;
}

.dpc-uk-unit-btn {
    background: white;
    border: none;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--dpc-text-dark);
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
    min-width: 50px;
}

.dpc-uk-unit-btn:first-child {
    border-right: 1px solid var(--dpc-border);
}

.dpc-uk-unit-btn.active {
    background: var(--dpc-gradient);
    color: var(--dpc-text-light);
    font-weight: 700;
}

.dpc-uk-unit-btn:hover:not(.active) {
    background: var(--dpc-bg-light);
    color: var(--dpc-primary-accessible);
}

.dpc-uk-unit-btn:focus {
    outline: 2px solid var(--dpc-primary);
    outline-offset: -2px;
    z-index: 1;
}

/* Help Text */
.dpc-uk-help-text {
    font-size: 0.875rem;
    color: var(--dpc-text-muted);
    margin-top: 0.5rem;
    margin-bottom: 0;
}

/* Checkboxes */
.dpc-uk-checkbox-group {
    display: grid;
    gap: 0.75rem;
}

@media (min-width: 768px) {
    .dpc-uk-checkbox-group {
        grid-template-columns: 1fr 1fr;
    }
}

.dpc-uk-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background 0.2s;
}

.dpc-uk-checkbox-label:hover {
    background: var(--dpc-bg-light);
}

.dpc-uk-checkbox-label input[type="checkbox"] {
    margin-top: 0.25rem;
    width: 18px;
    height: 18px;
    cursor: pointer;
    flex-shrink: 0;
    accent-color: var(--dpc-primary);
}

.dpc-uk-checkbox-label span {
    color: var(--dpc-text-dark);
}

/* Buttons */
.dpc-uk-form-actions {
    margin-top: 2rem;
    text-align: center;
}

.dpc-uk-btn {
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.dpc-uk-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--dpc-shadow-lg);
}

.dpc-uk-btn:focus {
    outline: 2px solid var(--dpc-primary);
    outline-offset: 2px;
}

.dpc-uk-btn:active {
    transform: translateY(0);
}

.dpc-uk-btn-primary {
    background: var(--dpc-gradient);
    color: var(--dpc-text-light);
    min-width: 200px;
}

.dpc-uk-btn-primary:hover {
    background: linear-gradient(130deg, #7a3de6 0%, #4a2299 100%);
}

.dpc-uk-btn-secondary {
    background: white;
    color: var(--dpc-primary-accessible);
    border: 2px solid var(--dpc-primary);
}

.dpc-uk-btn-secondary:hover {
    background: var(--dpc-gradient);
    color: var(--dpc-text-light);
    border-color: var(--dpc-primary-dark);
}

.dpc-uk-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.dpc-uk-btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* Spinner */
.dpc-uk-spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: dpc-spin 0.8s linear infinite;
}

@keyframes dpc-spin {
    to {
        transform: rotate(360deg);
    }
}

/* Results */
.dpc-uk-results {
    margin-top: 2rem;
    background: white;
    border: 2px solid var(--dpc-primary);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--dpc-shadow-lg);
}

@media (min-width: 768px) {
    .dpc-uk-results {
        padding: 2rem;
    }
}

.dpc-uk-results-content h3 {
    background: var(--dpc-gradient);
    color: var(--dpc-text-light);
    padding: 0.75rem 1rem;
    margin: -1.5rem -1.5rem 1.5rem -1.5rem;
    font-size: 1.3rem;
    font-weight: 700;
    border-radius: 6px 6px 0 0;
}

@media (min-width: 768px) {
    .dpc-uk-results-content h3 {
        margin: -2rem -2rem 1.5rem -2rem;
        padding: 0.75rem 2rem;
        font-size: 1.4rem;
    }
}

.dpc-uk-results-content p {
    color: var(--dpc-text-body);
    margin: 0.75rem 0;
}

.dpc-uk-results-content strong {
    color: var(--dpc-text-dark);
}

.dpc-uk-result-grid {
    display: grid;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .dpc-uk-result-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.dpc-uk-result-item {
    background: #ffffff;
    padding: 1rem;
    border-radius: 4px;
    border-left: 4px solid var(--dpc-primary);
}

.dpc-uk-result-label {
    font-size: 0.875rem;
    color: var(--dpc-text-muted);
    margin-bottom: 0.25rem;
}

.dpc-uk-result-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dpc-primary-accessible);
}

/* Warning and Blocked States */
.dpc-uk-result-warning,
.dpc-uk-result-blocked {
    background: #ffebee;
    border: 2px solid var(--dpc-danger);
    padding: 1.25rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.dpc-uk-result-blocked {
    background: #fff8e1;
    border-color: var(--dpc-warning);
}

.dpc-uk-result-warning h4,
.dpc-uk-result-blocked h4 {
    margin: 0 0 0.75rem 0;
    color: var(--dpc-danger-dark);
    font-size: 1.1rem;
    font-weight: 700;
}

.dpc-uk-result-blocked h4 {
    color: var(--dpc-warning-dark);
}

.dpc-uk-result-warning p,
.dpc-uk-result-blocked p {
    color: var(--dpc-text-dark);
    margin: 0.5rem 0;
}

.dpc-uk-result-warning ul,
.dpc-uk-result-blocked ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.dpc-uk-result-warning li,
.dpc-uk-result-blocked li {
    color: var(--dpc-text-dark);
    margin: 0.25rem 0;
}

.dpc-uk-result-warning strong,
.dpc-uk-result-blocked strong {
    color: var(--dpc-danger-dark);
    font-weight: 700;
}

.dpc-uk-result-blocked strong {
    color: var(--dpc-warning-dark);
}

/* Results Actions */
.dpc-uk-results-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--dpc-border);
}

/* FAQ */
.dpc-uk-faq {
    margin-top: 3rem;
}

.dpc-uk-faq-heading {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--dpc-text-dark);
}

.dpc-uk-faq-item {
    background: white;
    border: 1px solid var(--dpc-border);
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: var(--dpc-shadow);
    transition: box-shadow 0.2s, border-color 0.2s;
}

.dpc-uk-faq-item:hover {
    border-color: var(--dpc-primary);
    box-shadow: var(--dpc-shadow-lg);
}

.dpc-uk-faq-item h3 {
    margin: 0 0 0.75rem 0;
    font-size: 1.1rem;
    color: var(--dpc-primary-accessible);
}

.dpc-uk-faq-item p {
    margin: 0.5rem 0 0 0;
    line-height: 1.6;
    color: var(--dpc-text-body);
}

.dpc-uk-faq-item strong {
    color: var(--dpc-text-dark);
    font-weight: 700;
}

/* Print Styles */
@media print {
    .dpc-uk-calculator {
        max-width: 100%;
    }
    
    .dpc-uk-form,
    .dpc-uk-safety-accordion,
    .dpc-uk-results-actions,
    .dpc-uk-faq {
        display: none;
    }
    
    .dpc-uk-results {
        border: 1px solid black;
        box-shadow: none;
        page-break-inside: avoid;
    }
    
    .dpc-uk-emergency-notice,
    .dpc-uk-disclaimer {
        page-break-inside: avoid;
    }
    
    .dpc-uk-calculator a {
        color: var(--dpc-text-dark);
        text-decoration: underline;
    }
}

/* Utility */
[hidden] {
    display: none !important;
}