/* ===== Design system – variables CSS ===== */
:root {
    /* Couleurs */
    --color-bg: #f0f2f5;
    --color-surface: #f8f9fa;
    --color-primary: #18534F;
    --color-accent: #226D68;
    --color-surface-light: #ECF8F6;
    --color-warning-bg: #FEEAA1;
    --color-warning-border: #f9a825;
    --color-success: #2e7d32;
    --color-error: #c62828;
    --color-error-bg: #ffebee;
    --color-text: #333;
    --color-text-muted: #555;
    --color-text-subtle: #666;
    --color-border: rgba(24, 83, 79, 0.2);
    --color-border-light: rgba(24, 83, 79, 0.12);
    --color-border-very-light: rgba(24, 83, 79, 0.08);
    /* Rayons */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    /* Ombres */
    --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    /* Espacement */
    --space-8: 8px;
    --space-12: 12px;
    --space-16: 16px;
    --space-24: 24px;
}

/* Styles globaux */
.hidden {
    display: none !important;
}

body, html {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    font-size: 16px;
    line-height: 1.5;
}

* {
    box-sizing: inherit;
}

/* En-tête */
header {
    background-color: var(--color-primary);
    color: white;
    padding: 20px 10px;
    text-align: center;
    transition: background-color 0.3s ease;
    width: 100%;
}

header:hover {
    background-color: var(--color-accent);
}

header h1 {
    margin-top: 0;
    font-size: 2em;
    margin-bottom: 10px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

header p {
    font-size: 1em;
    font-weight: 300;
    max-width: 1300px;
    margin: 0 auto;
    color: white;
}

.scroll-indicator {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--color-accent);
    background-color: var(--color-surface);
    color: var(--color-accent);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: opacity 0.3s ease, transform 0.2s ease;
}
.scroll-indicator:hover {
    background-color: var(--color-surface-light);
}
.scroll-indicator.hidden {
    opacity: 0;
    pointer-events: none;
}
.scroll-indicator-arrow {
    font-size: 1.2em;
    animation: bounceDown 1.5s ease-in-out infinite;
}
@keyframes bounceDown {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}

/* Conteneur principal */
.main-container {
    display: grid;
    grid-template-columns: 1.2fr 1.8fr 1fr;
    gap: var(--space-12);
    width: 100%;
    padding: var(--space-12) var(--space-16);
    overflow-x: hidden;
}

/* Sections */
.section {
    background-color: var(--color-surface);
    padding: var(--space-24);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.section:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

/* Répartition gérée par la grille (pas de width) */
.left-section,
.center-section {
    /* La grille définit les colonnes */
    font-size: 1.05em;
}

.right-section {
    position: relative;
}

/* Aide contextuelle « ? » */
.btn-aide {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    padding: 0;
    margin-left: var(--space-8);
    font-size: 0.85em;
    font-weight: 600;
    border-radius: 50%;
    border: 1px solid var(--color-accent);
    background-color: var(--color-surface-light);
    color: var(--color-primary);
    cursor: pointer;
    font-family: inherit;
    vertical-align: middle;
    transition: background-color 0.2s ease;
}
.btn-aide:hover {
    background-color: var(--color-warning-bg);
}
.bulle-aide {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 10;
    margin-top: var(--space-8);
    padding: var(--space-12);
    font-size: 0.9em;
    line-height: 1.4;
    background-color: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    color: var(--color-text);
    min-width: 200px;
    max-width: 300px;
}
.bulle-aide::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 12px;
    width: 12px;
    height: 12px;
    background: white;
    border-left: 1px solid var(--color-border);
    border-top: 1px solid var(--color-border);
    transform: rotate(45deg);
}
.message-accompagnement {
    margin-bottom: var(--space-12);
    padding: var(--space-12);
    background-color: #fff8e1;
    border-left: 4px solid var(--color-warning-border);
    border-radius: var(--radius-sm);
    font-size: 0.95em;
    line-height: 1.5;
    color: #5d4e37;
}

.message-possibilite,
.message-autre-possibilite {
    margin-top: var(--space-12);
    padding: var(--space-8);
    background-color: var(--color-surface);
    border-radius: var(--radius-sm);
    font-size: 0.95em;
    color: #444;
}

/* En-tête de section (pour ancrer les bulles aide) */
.section-header {
    position: relative;
}

/* Titres des sections (hiérarchie visuelle) */
.section h2 {
    margin-top: 0;
    font-size: 1.35em;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-24);
    line-height: 1.3;
}

.section h3 {
    font-size: 0.9em;
    font-weight: 500;
    margin-bottom: var(--space-16);
    color: var(--color-accent);
    line-height: 1.35;
}

/* Badge compteur */
.badge {
    display: inline-block;
    margin-left: var(--space-8);
    padding: 2px var(--space-8);
    font-size: 0.75em;
    font-weight: 500;
    background-color: var(--color-surface-light);
    color: var(--color-primary);
    border-radius: var(--radius-lg);
    vertical-align: middle;
}

/* Cartes d'intérêt (chips) */
.interest-card-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-12);
    margin-top: var(--space-16);
}

.interest-card {
    background-color: var(--color-surface-light);
    padding: var(--space-8) var(--space-16);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: none;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
    font-size: 0.85em;
    height: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    word-wrap: break-word;
    color: var(--color-primary);
    font-family: inherit;
}

button.interest-card {
    width: auto;
}

.interest-card:hover {
    background-color: var(--color-warning-bg);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.interest-card.selected {
    background-color: var(--color-surface-light);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.interest-card.selected::after {
    content: " \2713";
    margin-left: 4px;
    font-weight: bold;
}

.interest-card:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Niveau scolaire */
.niveau-group {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* Style de travail */
.style-travail-group {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: var(--space-24);
}
.style-question-wrap {
    display: grid;
    grid-template-columns: 1fr minmax(60px, 80px);
    grid-template-rows: auto auto;
    gap: var(--space-8) var(--space-12);
    align-items: center;
}
.style-question-wrap .style-question-label {
    grid-column: 1 / -1;
    white-space: normal;
    font-size: 0.9em;
    font-weight: 500;
}
.style-question-wrap input[type="range"] {
    grid-column: 1;
}
.style-question-wrap .niveau-slider-label {
    grid-column: 2;
    align-self: center;
}

/* Curseurs de niveau scolaire (1 à 5) – grille 3 colonnes */
.niveau-slider-wrap {
    display: grid;
    grid-template-columns: minmax(200px, 280px) 1fr minmax(36px, 48px);
    gap: 0 var(--space-12);
    align-items: center;
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid var(--color-border-very-light);
    background-color: rgba(24, 83, 79, 0.04);
    border-radius: var(--radius-sm);
    padding: var(--space-8) var(--space-12);
}
.niveau-slider-wrap .matiere {
    min-width: 0;
    font-size: 0.95em;
    color: var(--color-primary);
    white-space: nowrap;
}
.niveau-slider-wrap input[type="range"] {
    width: 100%;
    min-width: 0;
    height: var(--space-8);
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(to right, var(--color-accent) 0%, var(--color-accent) 50%, #e0e0e0 50%);
    border-radius: 4px;
}
.niveau-slider-wrap input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-accent);
    cursor: pointer;
    border: 2px solid #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.niveau-slider-wrap input[type="range"]:hover::-webkit-slider-thumb,
.niveau-slider-wrap input[type="range"]:focus-visible::-webkit-slider-thumb {
    box-shadow: 0 2px 8px rgba(34, 109, 104, 0.5);
}
.niveau-slider-wrap input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-accent);
    cursor: pointer;
    border: 2px solid #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.niveau-slider-wrap input[type="range"]:hover::-moz-range-thumb,
.niveau-slider-wrap input[type="range"]:focus-visible::-moz-range-thumb {
    box-shadow: 0 2px 8px rgba(34, 109, 104, 0.5);
}
.niveau-slider-label {
    display: inline-block;
    padding: var(--space-8) var(--space-12);
    font-size: 0.85em;
    font-weight: 500;
    color: var(--color-primary);
    background-color: var(--color-surface-light);
    border-radius: var(--radius-sm);
    min-width: 0;
    text-align: right;
    white-space: nowrap;
}

/* Niveau scolaire : X/5 compact */
.niveau-group .niveau-slider-wrap .niveau-slider-label {
    justify-self: end;
    min-width: auto;
    padding: var(--space-4) var(--space-8);
}

/* Override pour style de travail - grille 2 colonnes, X/5 compact */
.style-travail-group .style-question-wrap {
    grid-template-columns: 1fr minmax(36px, 48px);
    grid-template-rows: auto auto;
}
.style-travail-group .style-question-wrap .style-question-label {
    grid-column: 1 / -1;
    white-space: normal;
    overflow-wrap: break-word;
    min-width: 0;
}
.style-travail-group .style-question-wrap input[type="range"] {
    grid-column: 1;
}
.style-travail-group .style-question-wrap .niveau-slider-label {
    grid-column: 2;
    justify-self: end;
    min-width: auto;
    padding: var(--space-4) var(--space-8);
}

/* Légende légère échelle 1–5 */
.niveau-legend-light {
    margin: 0 0 var(--space-12) 0;
    font-size: 0.85em;
    color: var(--color-text-muted);
    font-weight: 400;
}

.link-button {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.95em;
    color: var(--color-accent);
    text-decoration: underline;
    cursor: pointer;
    font-family: inherit;
}
.link-button:hover {
    color: var(--color-primary);
}
/* Option suivie */
.custom-dropdown {
    margin-top: 20px;
}

.custom-dropdown label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--color-primary);
}

.custom-dropdown select {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--color-primary);
    background-color: var(--color-surface-light);
    font-size: 0.95em;
    cursor: pointer;
    transition: border 0.3s, background-color 0.3s;
    color: var(--color-primary);
}

.custom-dropdown select:hover {
    background-color: var(--color-warning-bg);
    border: 1px solid var(--color-accent);
    color: var(--color-primary);
}

/* Questions additionnelles */
.additional-question-container {
    margin-top: 20px;
}

.additional-question-container h3 {
    font-size: 1em;
    margin-bottom: 10px;
    color: var(--color-primary);
}

.option-card-group {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 10px;
}

.option-card {
    background-color: var(--color-surface-light);
    padding: 12px;
    border-radius: 8px;
    border: 1px solid rgba(24, 83, 79, 0.2);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    text-align: center;
    cursor: pointer;
    transition: background-color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
    font-size: 0.95em;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--color-primary);
    font-family: inherit;
}

.option-card:hover {
    background-color: var(--color-warning-bg);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.option-card.selected {
    background-color: var(--color-surface-light);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.option-card.selected::after {
    content: " \2713";
    margin-left: 4px;
    font-weight: bold;
}

.option-card:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

#analyze-button:focus-visible,
#reset-button:focus-visible,
.custom-dropdown select:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Boutons d'action */
.button-container {
    position: sticky;
    bottom: 0;
    background: var(--color-surface);
    padding: var(--space-16) 0;
    margin: var(--space-24) 0;
    margin-top: auto;
    text-align: center;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-12);
    justify-content: center;
    align-items: center;
}

#analyze-button {
    background-color: var(--color-accent);
    color: white;
    padding: 12px 24px;
    font-size: 1em;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
    min-height: 44px;
}

#analyze-button:hover {
    background-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

#reset-button {
    background-color: transparent;
    color: var(--color-primary);
    padding: 12px 24px;
    font-size: 1em;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
    min-height: 44px;
}

#reset-button:hover {
    background-color: var(--color-surface-light);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

/* Section Résultats */
.result-section {
    margin-top: var(--space-24);
    padding: var(--space-24);
    background-color: white;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent);
    box-shadow: var(--shadow-sm);
}

.result-section h3 {
    margin-top: 0;
    font-size: 1.2em;
    color: var(--color-accent);
}

.result-section p {
    font-size: 0.95em;
    line-height: 1.6;
    color: var(--color-text);
}

/* Styles pour les listes si vous utilisez l'option de liste */
.result-section ul {
    list-style-type: disc;
    padding-left: 20px;
    margin-top: 10px;
}

.result-section ul li {
    margin-bottom: 5px;
}

.result-specialites {
    margin: 10px 0;
    padding-left: 20px;
}

.confidence {
    font-size: 0.85em;
    font-weight: normal;
}

.confidence-elevé {
    color: #2e7d32;
}

.confidence-moyen {
    color: #c55a00;
    font-weight: 600;
}

.confidence-faible {
    color: #666;
}

#resultat-resume {
    margin-top: 12px;
    margin-bottom: 0;
    font-size: 0.95em;
    line-height: 1.5;
    color: #444;
}
#resultat-resume p {
    margin: 0 0 6px 0;
}
#resultat-resume p:last-child {
    margin-bottom: 0;
}

.resultat-comprendre-wrap {
    margin-top: 14px;
}
.btn-comprendre {
    padding: 10px 18px;
    font-size: 0.95em;
    background-color: var(--color-surface-light);
    border: 1px solid var(--color-primary);
    border-radius: 8px;
    color: var(--color-primary);
    cursor: pointer;
    font-family: inherit;
    transition: background-color 0.2s ease;
}
.btn-comprendre:hover {
    background-color: var(--color-warning-bg);
}

.resultat-explication {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(0,0,0,0.08);
    font-size: 0.9em;
    line-height: 1.5;
    color: #444;
}

.explication-resume {
    margin-top: 12px;
    margin-bottom: 0;
    font-style: italic;
    color: #555;
}

.explication-resume-chiffre {
    margin-bottom: var(--space-12);
    padding: var(--space-8);
    background-color: var(--color-surface);
    border-radius: var(--radius-sm);
    font-size: 0.9em;
    font-weight: 500;
    color: #333;
}

/* Fiches découverte « Détails » */
.result-specialite-item {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
    padding: var(--space-12);
    list-style: none;
    background-color: var(--color-surface);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}
.result-specialite-item > span {
    flex: 1;
    min-width: 0;
}
.btn-fiche {
    padding: var(--space-8) var(--space-16);
    font-size: 0.9em;
    background-color: transparent;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-sm);
    color: var(--color-primary);
    cursor: pointer;
    font-family: inherit;
    transition: background-color 0.2s, box-shadow 0.2s;
}
.btn-fiche:hover {
    background-color: var(--color-surface-light);
    box-shadow: var(--shadow-sm);
}
.fiche-specialite {
    margin-top: var(--space-12);
    margin-left: 0;
    padding: var(--space-12);
    background-color: var(--color-surface);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--color-accent);
    font-size: 0.9em;
    line-height: 1.5;
    flex-basis: 100%;
}
.fiche-specialite-content p {
    margin: 0 0 8px 0;
}
.fiche-specialite-content p:last-child {
    margin-bottom: 0;
}
.fiche-specialite-content a {
    color: var(--color-accent);
    text-decoration: underline;
}

.resultat-prochaines-etapes {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid rgba(0,0,0,0.08);
}

.resultat-prochaines-etapes h4 {
    margin-top: 0;
    font-size: 1em;
    color: var(--color-primary);
}

.links-orientation {
    list-style: none;
    padding-left: 0;
}

.links-orientation li {
    margin-bottom: 8px;
}

.links-orientation a {
    color: var(--color-accent);
    text-decoration: underline;
}

.links-orientation a:hover {
    color: var(--color-primary);
}

.footer-centered {
    text-align: center;
}

.inline-message {
    margin: 10px 0;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.95em;
}

.inline-message.error {
    background-color: #ffebee;
    color: #c62828;
}

.loading-message {
    padding: 20px;
    text-align: center;
    color: var(--color-primary);
}

.retry-button {
    margin-top: 10px;
    padding: 10px 20px;
    background-color: var(--color-accent);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1em;
}

.retry-button:hover {
    background-color: var(--color-primary);
}

/* Mode étapes */
.step-mode-toggle-wrap {
    text-align: center;
    padding: var(--space-8) var(--space-24);
}

.step-navigation {
    display: flex;
    gap: var(--space-12);
    justify-content: center;
    padding: var(--space-12) var(--space-24);
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border-very-light);
}

.btn-step {
    padding: var(--space-8) var(--space-16);
    font-size: 0.95em;
    background-color: transparent;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-sm);
    color: var(--color-primary);
    cursor: pointer;
    font-family: inherit;
    transition: background-color 0.2s, box-shadow 0.2s;
}

.btn-step:hover {
    background-color: var(--color-surface-light);
}

.btn-step-primary {
    background-color: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
}

.btn-step-primary:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

/* En mode étapes : une colonne centrée, une section visible à la fois */
.main-container.step-mode {
    grid-template-columns: 1fr;
    max-width: 600px;
}

.main-container.step-mode .section[data-step] {
    display: none;
}

.main-container.step-mode .section[data-step].step-visible {
    display: flex;
}

/* Scrollbar personnalisée pour les sections */
.section::-webkit-scrollbar {
    width: 6px;
}

.section::-webkit-scrollbar-thumb {
    background-color: #c0c0c0;
    border-radius: 3px;
}

.section::-webkit-scrollbar-thumb:hover {
    background-color: #a0a0a0;
}

/* Desktop : layout centré, scroll global */
@media (min-width: 1025px) {
    header {
        padding: var(--space-12) 10px;
    }

    header h1 {
        font-size: 1.5em;
        margin-bottom: var(--space-8);
    }

    header p {
        font-size: 0.9em;
        margin: 4px auto;
        line-height: 1.35;
    }

    main.main-container {
        padding: var(--space-12) var(--space-16);
    }

    .center-section {
        min-width: 420px;
    }

    .section {
        padding: var(--space-12) var(--space-16);
    }

    .footer-centered {
        padding: var(--space-8);
    }

    /* Sections desktop */
    .section h2 {
        margin-bottom: var(--space-12);
        font-size: 1.25em;
    }

    .section h3 {
        margin-bottom: var(--space-12);
        font-size: 0.9em;
    }

    .interest-card-group {
        gap: var(--space-12);
        margin-top: var(--space-12);
    }

    .interest-card {
        padding: var(--space-8) var(--space-12);
        font-size: 0.85em;
    }

    .niveau-group {
        gap: var(--space-8);
    }

    .niveau-slider-wrap .matiere {
        font-size: 0.85em;
    }

    .niveau-legend-light {
        margin-bottom: var(--space-8);
        font-size: 0.82em;
    }

    .custom-dropdown {
        margin-top: 10px;
    }

    .option-card {
        padding: 8px 12px;
        font-size: 0.9em;
    }

    .button-container {
        margin: 12px 0;
    }

    .disclaimer-resultat {
        font-size: 0.85em;
        margin: var(--space-8) 0;
    }
}

/* Desktop moyen (1100–1300px) : sliders en 1 colonne pour lisibilité */
@media (max-width: 1300px) and (min-width: 1025px) {
    .niveau-slider-wrap {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
}

/* Media Queries pour écrans de différentes tailles */
@media (max-width: 1024px) {
    /* Tablettes en mode paysage */
    .main-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .main-container {
        grid-template-columns: 1fr;
        padding: var(--space-16);
        gap: var(--space-16);
    }

    .section {
        padding: 18px;
    }

    .niveau-slider-wrap .matiere {
        text-align: left;
        padding-right: 10px;
        justify-content: flex-start;
    }

    .niveau-slider-wrap {
        grid-template-columns: 1fr;
        padding: var(--space-8) 10px;
    }

    .additional-question-container h3 {
        font-size: 0.95em;
    }

    .interest-card,
    .option-card {
        min-height: 48px;
    }

    #analyze-button,
    #reset-button {
        min-height: 48px;
        padding: 14px 24px;
    }

    .result-section > div + div {
        margin-top: 16px;
        padding-top: 16px;
        border-top: 1px solid rgba(0, 0, 0, 0.08);
    }
}

@media (max-width: 576px) {
    /* Smartphones – boutons pouce-friendly, marges plus grandes */
    .main-container {
        padding: 12px;
        gap: 14px;
    }

    .section {
        padding: 16px;
    }

    .niveau-slider-wrap {
        grid-template-columns: 1fr;
        padding: 12px 10px;
    }
    .niveau-slider-wrap input[type="range"] {
        height: 10px;
    }
    .niveau-slider-wrap input[type="range"]::-webkit-slider-thumb {
        width: 22px;
        height: 22px;
    }
    .niveau-slider-wrap input[type="range"]::-moz-range-thumb {
        width: 22px;
        height: 22px;
    }

    .niveau-slider-wrap .matiere {
        width: 100%;
        text-align: left;
        padding-right: 0;
        margin-bottom: 10px;
        font-size: 0.8em;
        justify-content: flex-start;
    }

    .option-card-group {
        flex-direction: row;
        justify-content: center;
        gap: 12px;
    }

    .option-card {
        min-height: 48px;
        padding: 12px 16px;
    }

    #analyze-button,
    #reset-button {
        padding: 14px 28px;
        font-size: 1em;
        min-height: 48px;
    }

    .custom-dropdown label {
        font-size: 0.9em;
    }

    .interest-card-group {
        gap: var(--space-12);
    }

    .interest-card {
        font-size: 0.8em;
        height: auto;
        min-height: 48px;
        padding: 12px 10px;
    }

    .result-section > div + div {
        margin-top: 14px;
        padding-top: 14px;
        border-top: 1px solid rgba(0, 0, 0, 0.08);
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .interest-card:hover,
    .interest-card.selected,
    .option-card:hover,
    .option-card.selected,
    .section:hover {
        transform: none;
    }
}

@media (min-width: 1920px) {
    body, html {
        padding: 0;
    }

    header h1 {
        font-size: 2em;
    }

    header p {
        font-size: 1em;
    }

    .section {
        padding: 20px;
    }

    .section h2 {
        font-size: 1.5em;
    }

    .section h3 {
        font-size: 1em;
    }

    .interest-card-group {
        gap: var(--space-12);
    }

    .interest-card {
        padding: 10px 12px;
        font-size: 0.85em;
    }

    .option-card-group {
        flex-direction: row;
        justify-content: center;
        gap: 15px;
    }

    .option-card {
        padding: 12px;
        font-size: 0.95em;
    }

    #analyze-button,
    #reset-button {
        padding: 16px 30px;
        font-size: 1.1em;
    }
}