/* IA Category Styles - Compact & Performance */
:root {
    --ia-red: #dc2626;
    --ia-blue: #1e3a5f;
    --ia-gold: #fbbf24;
    --ia-dark: #0f172a;
    --ia-light: #f8fafc;
    --ia-gray: #64748b;
    --ia-border: #e2e8f0;
}

* {
    box-sizing: border-box;
}

html, body {
    overflow-x: hidden;
}

/* Container commun */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 32px;
    color: var(--ia-dark);
    margin: 0 0 12px;
    font-weight: 800;
}

.section-intro {
    color: var(--ia-gray);
    font-size: 16px;
    margin: 0;
}

.section-title {
    font-size: 28px;
    color: var(--ia-dark);
    margin: 0 0 12px;
    text-align: center;
    font-weight: 700;
}

.section-subtitle {
    text-align: center;
    color: var(--ia-gray);
    margin: 0 0 40px;
    font-size: 16px;
}

/* Articles Section */
.articles-section {
    padding: 60px 0;
    background-color: #fff;
}

/* Masonry Grid */
.masonry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    align-items: start;
}

.masonry-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--ia-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.masonry-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(30, 58, 95, 0.15);
    border-color: var(--ia-blue);
}

.masonry-card--featured {
    grid-column: span 2;
}

.masonry-card__image-wrapper {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background-color: var(--ia-light);
}

.masonry-card__image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.masonry-card__overlay {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(30, 58, 95, 0.9);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.masonry-card__content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.masonry-card__title {
    font-size: 18px;
    margin: 0 0 10px;
    line-height: 1.4;
}

.masonry-card__title a {
    color: var(--ia-dark);
    text-decoration: none;
    font-weight: 700;
}

.masonry-card__title a:hover {
    color: var(--ia-red);
}

.masonry-card__description {
    color: var(--ia-gray);
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
    overflow-wrap: break-word;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--ia-gray);
}

.empty-state__icon {
    margin-bottom: 20px;
    opacity: 0.5;
}

/* IA Stats Section */
.ia-stats {
    padding: 80px 0;
    background-color: var(--ia-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.stat-block {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    border-top: 4px solid var(--ia-red);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.stat-icon {
    margin-bottom: 16px;
}

.stat-number {
    font-size: 42px;
    font-weight: 800;
    color: var(--ia-blue);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-unit {
    font-size: 14px;
    color: var(--ia-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--ia-dark);
    font-weight: 500;
}

/* Comparison Table Section */
.comparison-section {
    padding: 80px 0;
    background-color: #fff;
}

.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -20px;
    padding: 0 20px;
}

.ia-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 700px;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.ia-table thead {
    background-color: var(--ia-blue);
    color: #fff;
}

.ia-table th {
    padding: 16px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
}

.ia-table tbody tr {
    border-bottom: 1px solid var(--ia-border);
}

.ia-table tbody tr:last-child {
    border-bottom: none;
}

.ia-table td, .ia-table tbody th {
    padding: 16px;
    font-size: 14px;
}

.ia-table tbody th {
    font-weight: 600;
    color: var(--ia-dark);
    background-color: #f8fafc;
}

.col-script { border-bottom: 3px solid #94a3b8; }
.col-symbolic { border-bottom: 3px solid #22c55e; }
.col-ml { border-bottom: 3px solid var(--ia-gold); }
.col-gen { border-bottom: 3px solid var(--ia-red); }

.table-disclaimer {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    padding: 16px;
    background-color: #fef2f2;
    border-left: 4px solid var(--ia-red);
    color: var(--ia-gray);
    font-size: 13px;
    border-radius: 4px;
}

/* Progress Circles Section */
.progress-section {
    padding: 80px 0;
    background-color: var(--ia-dark);
    color: #fff;
}

.progress-section .section-title {
    color: #fff;
}

.progress-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.progress-item {
    text-align: center;
}

.progress-ring {
    position: relative;
    width: 140px;
    height: 140px;
    margin: 0 auto 20px;
}

.progress-ring svg {
    transform: rotate(-90deg);
    width: 100%;
    height: 100%;
}

.progress-ring__circle {
    fill: none;
    stroke-width: 8;
}

.progress-ring__bg {
    stroke: rgba(255,255,255,0.1);
}

.progress-ring__fill {
    stroke: var(--color);
    stroke-dasharray: 251.2;
    stroke-dashoffset: calc(251.2 - (251.2 * var(--progress)) / 100);
    stroke-linecap: round;
    transition: stroke-dashoffset 1s ease;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 28px;
    font-weight: 800;
    color: #fff;
}

.progress-item h3 {
    font-size: 18px;
    margin: 0 0 8px;
    color: #fff;
}

.progress-item p {
    margin: 0;
    color: #94a3b8;
    font-size: 14px;
}

/* FAQ Accordion Section */
.faq-section {
    padding: 80px 0;
    background-color: var(--ia-light);
}

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

.accordion-item {
    background: #fff;
    border-radius: 8px;
    margin-bottom: 12px;
    border: 1px solid var(--ia-border);
    overflow: hidden;
}

.accordion-header {
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--ia-dark);
    list-style: none;
    transition: background-color 0.2s;
}

.accordion-header:hover {
    background-color: #f8fafc;
}

.accordion-header::-webkit-details-marker {
    display: none;
}

.accordion-icon {
    transition: transform 0.3s;
    color: var(--ia-red);
}

.accordion-item[open] .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    padding: 0 24px 20px;
    color: var(--ia-gray);
    line-height: 1.7;
    font-size: 15px;
}

.accordion-content p {
    margin: 0 0 12px;
}

.accordion-content p:last-child {
    margin-bottom: 0;
}

/* Calculator Section */
.calculator-section {
    padding: 80px 0;
    background-color: #fff;
}

.calculator-card {
    max-width: 700px;
    margin: 0 auto;
    background: var(--ia-light);
    border-radius: 16px;
    padding: 40px;
    border: 1px solid var(--ia-border);
}

.calculator-title {
    font-size: 24px;
    color: var(--ia-dark);
    margin: 0 0 8px;
    text-align: center;
}

.calculator-subtitle {
    text-align: center;
    color: var(--ia-gray);
    margin: 0 0 30px;
    font-size: 14px;
}

.calculator-form {
    display: grid;
    gap: 24px;
    margin-bottom: 30px;
}

.form-group {
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--ia-dark);
    font-size: 14px;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--ia-border);
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.2s;
    background: #fff;
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--ia-blue);
}

.form-unit {
    position: absolute;
    right: 16px;
    bottom: 14px;
    color: var(--ia-gray);
    font-size: 14px;
    font-weight: 500;
}

.calc-button {
    background-color: var(--ia-red);
    color: #fff;
    border: none;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    width: 100%;
}

.calc-button:hover {
    background-color: #b91c1c;
}

.calculator-result {
    background: #fff;
    padding: 24px;
    border-radius: 12px;
    margin-bottom: 30px;
    border: 2px solid var(--ia-gold);
}

.result-comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
    text-align: center;
}

.result-col {
    padding: 16px;
    border-radius: 8px;
    background: #f8fafc;
}

.result-col-ia {
    background: #eff6ff;
    border: 2px solid var(--ia-blue);
}

.result-label-top {
    font-size: 12px;
    color: var(--ia-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.result-value-script {
    font-size: 28px;
    font-weight: 800;
    color: var(--ia-gray);
}

.result-value-ia {
    font-size: 28px;
    font-weight: 800;
    color: var(--ia-blue);
}

.result-recommendation {
    padding-top: 16px;
    border-top: 1px solid var(--ia-border);
    font-size: 15px;
    color: var(--ia-dark);
    font-weight: 600;
    text-align: center;
}

.calculator-examples {
    margin-bottom: 20px;
}

.calculator-examples h3 {
    font-size: 16px;
    color: var(--ia-dark);
    margin: 0 0 16px;
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.example-item {
    background: #fff;
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--ia-border);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.example-item strong {
    color: var(--ia-dark);
    font-size: 14px;
}

.example-item span:not(.example-price) {
    color: var(--ia-gray);
    font-size: 13px;
}

.example-price {
    color: var(--ia-red);
    font-weight: 700;
    font-size: 14px;
    margin-top: 4px;
}

.calculator-disclaimer {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 12px;
    background-color: #fef2f2;
    color: var(--ia-gray);
    font-size: 12px;
    border-radius: 6px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .section-header h2, .section-title {
        font-size: 24px;
    }
    
    .masonry-grid {
        grid-template-columns: 1fr;
    }
    
    .masonry-card--featured {
        grid-column: span 1;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .ia-table {
        font-size: 13px;
    }
    
    .ia-table th, .ia-table td, .ia-table tbody th {
        padding: 12px;
    }
    
    .progress-grid {
        grid-template-columns: 1fr;
    }
    
    .calculator-card {
        padding: 24px;
    }
    
    .result-comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .examples-grid {
        grid-template-columns: 1fr;
    }
    
    .result-value-script, .result-value-ia {
        font-size: 22px;
    }
}

@media (max-width: 480px) {
    .calculator-title {
        font-size: 20px;
    }
    
    .result-value-script, .result-value-ia {
        font-size: 20px;
    }
    
    .accordion-header {
        padding: 16px 20px;
        font-size: 15px;
    }
    
    .accordion-content {
        padding: 0 20px 16px;
        font-size: 14px;
    }
    
    .result-comparison-grid {
        gap: 12px;
    }
}

/* Animation for stat numbers (CSS only enhancement) */
@keyframes countUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.stat-block {
    animation: countUp 0.6s ease forwards;
}

.stat-block:nth-child(1) { animation-delay: 0.1s; }
.stat-block:nth-child(2) { animation-delay: 0.2s; }
.stat-block:nth-child(3) { animation-delay: 0.3s; }
.stat-block:nth-child(4) { animation-delay: 0.4s; }

/* Scrollbar styling for table wrapper */
.table-wrapper::-webkit-scrollbar {
    height: 8px;
}

.table-wrapper::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.table-wrapper::-webkit-scrollbar-thumb {
    background: var(--ia-blue);
    border-radius: 4px;
}