/* Modern White & Purple Theme - Mobile First Approach */
:root {
    --primary-purple: #6A0DAD;
    --light-purple: #B19CD9;
    --white: #ffffff;
    --soft-gray: #f8f9fa;
    --text-dark: #2d3748;
    --text-light: #718096;
    --shadow: 0 10px 30px rgba(106, 13, 173, 0.1);
    --border-radius: 16px;
    --transition: all 0.3s ease;
}

/* Dark Mode Variables */
.dark-mode {
    --primary-purple: #9B4DFF;
    --light-purple: #7B68EE;
    --white: #1a202c;
    --soft-gray: #2d3748;
    --text-dark: #f7fafc;
    --text-light: #cbd5e0;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Container Styles - Mobile First */
.dcnc-container {
    width: 100%;
    max-width: 1200px;
    margin: 1rem auto;
    padding: 0 0.75rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-dark);
    box-sizing: border-box;
}

/* Header Styles - Mobile Optimized */
.dcnc-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.dcnc-header h2 {
    color: var(--primary-purple);
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
    line-height: 1.3;
    word-wrap: break-word;
}

.dcnc-subtitle {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.5;
    padding: 0 0.5rem;
}

/* Card Styles - Mobile Optimized */
.dcnc-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    transition: var(--transition);
    width: 100%;
    box-sizing: border-box;
}

.dcnc-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(106, 13, 173, 0.15);
}

/* Form Styles - Mobile First Grid */
.dcnc-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
}

.dcnc-row {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
}

/* Tablet and up */
@media (min-width: 768px) {
    .dcnc-row {
        flex-direction: row;
        gap: 1.5rem;
    }
    
    .dcnc-col {
        flex: 1;
    }
}

.dcnc-col {
    display: flex;
    flex-direction: column;
    width: 100%;
    box-sizing: border-box;
}

.dcnc-col label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-purple);
    font-size: 0.9rem;
    display: block;
}

/* Input Styles - Touch Friendly */
.dcnc-col input,
.dcnc-col select {
    width: 100%;
    padding: 0.9rem 1rem;
    border: 2px solid var(--light-purple);
    border-radius: 12px;
    font-size: 16px; /* Prevents zoom on mobile */
    transition: var(--transition);
    background: var(--white);
    color: var(--text-dark);
    box-sizing: border-box;
    -webkit-appearance: none;
    appearance: none;
}

.dcnc-col select {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236A0DAD' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
    padding-right: 2.5rem;
}

.dcnc-col input:focus,
.dcnc-col select:focus {
    outline: none;
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 3px rgba(106, 13, 173, 0.15);
}

.dcnc-input-group {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.dcnc-unit-label {
    position: absolute;
    right: 1rem;
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.9rem;
    pointer-events: none;
}

/* Toggle Styles - Mobile Optimized */
.dcnc-unit-toggle,
.dcnc-gender-toggle {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    background: var(--soft-gray);
    padding: 0.4rem;
    border-radius: 12px;
    width: 100%;
    box-sizing: border-box;
}

.dcnc-radio {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 0.25rem;
    cursor: pointer;
    border-radius: 8px;
    transition: var(--transition);
    color: var(--text-dark);
    font-size: 0.95rem;
    -webkit-tap-highlight-color: transparent;
    position: relative;
    background: transparent;
}

/* Hide the default radio button */
.dcnc-radio input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    margin: 0;
}

/* Custom radio indicator */
.dcnc-radio .radio-custom {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--primary-purple);
    border-radius: 50%;
    position: relative;
    transition: var(--transition);
    background: var(--white);
    flex-shrink: 0;
}

/* Checked state */
.dcnc-radio input[type="radio"]:checked + .radio-custom {
    background: var(--primary-purple);
    border-color: var(--primary-purple);
}

.dcnc-radio input[type="radio"]:checked + .radio-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    animation: popIn 0.2s ease;
}

@keyframes popIn {
    from {
        transform: translate(-50%, -50%) scale(0);
    }
    to {
        transform: translate(-50%, -50%) scale(1);
    }
}

/* Active/Hover states */
.dcnc-radio:hover {
    background: rgba(106, 13, 173, 0.05);
}

.dcnc-radio.active {
    background: var(--primary-purple);
    color: white;
}

.dcnc-radio.active .radio-custom {
    border-color: white;
    background: white;
}

.dcnc-radio.active input[type="radio"]:checked + .radio-custom::after {
    background: var(--primary-purple);
}

/* Focus state for accessibility */
.dcnc-radio input[type="radio"]:focus + .radio-custom {
    box-shadow: 0 0 0 3px rgba(106, 13, 173, 0.3);
}

/* Mobile optimization */
@media (max-width: 480px) {
    .dcnc-radio {
        padding: 0.7rem 0.25rem;
    }
    
    .dcnc-radio .radio-custom {
        width: 20px;
        height: 20px;
    }
}

/* Tablet and desktop hover effect */
@media (min-width: 769px) {
    .dcnc-radio:hover:not(.active) {
        background: rgba(106, 13, 173, 0.1);
    }
}

.unit-option,
.dcnc-radio {
    flex: 1;
    text-align: center;
    padding: 0.6rem 0.25rem;
    cursor: pointer;
    border-radius: 8px;
    transition: var(--transition);
    color: var(--text-dark);
    font-size: 0.9rem;
    -webkit-tap-highlight-color: transparent;
    white-space: nowrap;
}

.unit-option.active {
    background: var(--primary-purple);
    color: white;
}

.dcnc-radio {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
}

.dcnc-radio input[type="radio"] {
    width: auto;
    margin-right: 0.3rem;
    width: 1.2rem;
    height: 1.2rem;
    accent-color: var(--primary-purple);
}

/* Button Styles - Mobile Optimized */
.dcnc-btn {
    background: linear-gradient(135deg, var(--primary-purple), var(--light-purple));
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    position: relative;
    overflow: hidden;
    min-height: 3.5rem;
    -webkit-tap-highlight-color: transparent;
}

.dcnc-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(106, 13, 173, 0.4);
}

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

.btn-spinner {
    display: inline-block;
    animation: spin 1s linear infinite;
    font-size: 1.2rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Results Styles - Mobile Optimized */
.dcnc-results-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 1.25rem;
    animation: slideUp 0.5s ease;
    width: 100%;
    box-sizing: border-box;
    margin-top: 1rem;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dcnc-metrics-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin: 1.5rem 0;
}

@media (min-width: 480px) {
    .dcnc-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .dcnc-metrics-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.metric-card {
    background: var(--soft-gray);
    padding: 1.25rem;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    width: 100%;
    box-sizing: border-box;
}

.metric-card.highlight {
    background: linear-gradient(135deg, var(--primary-purple), var(--light-purple));
    color: white;
    transform: scale(1.02);
    grid-column: 1 / -1;
}

@media (min-width: 480px) {
    .metric-card.highlight {
        grid-column: auto;
    }
}

.metric-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
    word-wrap: break-word;
}

.highlight .metric-label {
    color: rgba(255, 255, 255, 0.9);
}

.metric-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-purple);
    word-wrap: break-word;
}

@media (min-width: 768px) {
    .metric-value {
        font-size: 1.8rem;
    }
}

.highlight .metric-value {
    color: white;
}

/* BMI Section - Mobile Optimized */
.dcnc-bmi-section {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 12px;
    padding: 1.25rem;
    margin: 1.5rem 0;
    width: 100%;
    box-sizing: border-box;
}

.bmi-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    margin: 1rem 0;
}

@media (min-width: 480px) {
    .bmi-display {
        flex-direction: row;
        justify-content: center;
    }
}

.bmi-score {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-purple);
    line-height: 1.2;
}

.bmi-category {
    font-size: 1.1rem;
    padding: 0.4rem 1.2rem;
    background: var(--primary-purple);
    color: white;
    border-radius: 30px;
    display: inline-block;
    text-align: center;
}

.ideal-weight {
    margin: 1rem 0;
    padding: 1rem;
    background: var(--white);
    border-radius: 10px;
    font-size: 0.95rem;
    word-wrap: break-word;
}

.additional-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-top: 1rem;
}

@media (min-width: 768px) {
    .additional-metrics {
        grid-template-columns: repeat(4, 1fr);
    }
}

.additional-metrics div {
    background: var(--white);
    padding: 0.75rem;
    border-radius: 8px;
    text-align: center;
    font-size: 0.85rem;
    word-wrap: break-word;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

/* Macros Section - Mobile Optimized */
.dcnc-macros-section {
    margin: 1.5rem 0;
    width: 100%;
}

.macros-grid {
    display: grid;
    gap: 0.75rem;
}

.macro-item {
    background: var(--soft-gray);
    padding: 1rem;
    border-radius: 10px;
    width: 100%;
    box-sizing: border-box;
}

.macro-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.macro-label {
    font-weight: 600;
    color: var(--primary-purple);
    min-width: 70px;
}

.macro-value {
    font-weight: 700;
    margin-left: auto;
}

.macro-percent {
    color: var(--text-light);
    font-size: 0.85rem;
    background: rgba(106, 13, 173, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
}

.progress-bar {
    height: 10px;
    background: rgba(106, 13, 173, 0.1);
    border-radius: 6px;
    margin-top: 0.5rem;
    overflow: hidden;
    width: 100%;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-purple), var(--light-purple));
    border-radius: 6px;
    transition: width 1s ease;
    animation: fillBar 1s ease;
}

@keyframes fillBar {
    from { width: 0; }
    to { width: 100%; }
}

/* Smart Guide - Mobile Optimized */
.dcnc-smart-guide {
    background: linear-gradient(135deg, #f0e6ff, #e6d9ff);
    border-radius: 12px;
    padding: 1.25rem;
    margin: 1.5rem 0;
    width: 100%;
    box-sizing: border-box;
}

.dcnc-smart-guide h4 {
    color: var(--primary-purple);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    word-wrap: break-word;
}

.tips-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tips-list li {
    padding: 0.6rem 0;
    border-bottom: 1px solid rgba(106, 13, 173, 0.15);
    font-size: 0.95rem;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    line-height: 1.4;
}

.tips-list li:last-child {
    border-bottom: none;
}

.tips-list li::before {
    content: "✓";
    color: var(--primary-purple);
    font-weight: bold;
    flex-shrink: 0;
}

/* Social Share Buttons - Mobile Optimized */
.dcnc-social-share {
    margin: 1.5rem 0;
    text-align: center;
    width: 100%;
}

.dcnc-social-share h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    width: 100%;
}

.share-btn {
    padding: 0.75rem 0.5rem;
    border: none;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    background: var(--soft-gray);
    color: var(--text-dark);
    flex: 1 1 calc(50% - 0.5rem);
    min-width: 110px;
    -webkit-tap-highlight-color: transparent;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (min-width: 480px) {
    .share-btn {
        flex: 1 1 calc(33.333% - 0.5rem);
    }
}

@media (min-width: 768px) {
    .share-btn {
        flex: 0 1 auto;
        min-width: 120px;
    }
}

.share-btn:hover {
    transform: translateY(-2px);
}

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

.share-btn.whatsapp { background: #25D366; color: white; }
.share-btn.facebook { background: #1877F2; color: white; }
.share-btn.twitter { background: #1DA1F2; color: white; }
.share-btn.telegram { background: #0088cc; color: white; }
.share-btn.linkedin { background: #0077b5; color: white; }
.share-btn.copy-link { background: var(--primary-purple); color: white; }

/* Premium Features - Mobile Optimized */
.dcnc-premium-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin: 1.5rem 0;
    padding-top: 1.5rem;
    border-top: 2px dashed var(--light-purple);
    width: 100%;
}

.premium-btn {
    padding: 0.6rem 0.75rem;
    border: 2px solid var(--primary-purple);
    background: transparent;
    color: var(--primary-purple);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
    flex: 1 1 calc(50% - 0.5rem);
    min-width: 110px;
    -webkit-tap-highlight-color: transparent;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (min-width: 768px) {
    .premium-btn {
        flex: 0 1 auto;
        min-width: 120px;
    }
}

.premium-btn:hover {
    background: var(--primary-purple);
    color: white;
}

/* FAQ Section - Mobile Optimized */
.dcnc-faq {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    margin: 1.5rem 0;
    box-shadow: var(--shadow);
    width: 100%;
    box-sizing: border-box;
}

.dcnc-faq h3 {
    color: var(--primary-purple);
    margin-bottom: 1.25rem;
    font-size: 1.3rem;
}

.dcnc-faq-item {
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--light-purple);
}

.dcnc-faq-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.dcnc-faq-item h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.4;
    padding-right: 1rem;
}

.dcnc-faq-item p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.95rem;
    margin: 0;
}

/* Disclaimer - Mobile Optimized */
.dcnc-disclaimer {
    background: #fff3cd;
    border: 1px solid #ffeeba;
    color: #856404;
    padding: 1.25rem;
    border-radius: var(--border-radius);
    margin-top: 1.5rem;
    font-size: 0.9rem;
    text-align: center;
    line-height: 1.6;
    width: 100%;
    box-sizing: border-box;
}

/* Responsive Breakpoints Summary */
@media (max-width: 359px) {
    .dcnc-header h2 {
        font-size: 1.4rem;
    }
    
    .share-btn,
    .premium-btn {
        flex: 1 1 100%;
    }
    
    .additional-metrics {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 768px) and (max-width: 1024px) {
    .dcnc-container {
        padding: 0 1.5rem;
    }
    
    .dcnc-card {
        padding: 1.75rem;
    }
}

/* Touch Device Optimizations */
@media (hover: none) {
    .dcnc-btn:hover,
    .share-btn:hover,
    .premium-btn:hover {
        transform: none;
    }
    
    .dcnc-btn:active,
    .share-btn:active,
    .premium-btn:active {
        opacity: 0.8;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}