/**
 * Checklist Qualité Front - Styles CSS
 *
 * Conventions :
 * - BEM : Block__Element--Modifier
 * - Variables CSS pour les couleurs et espacements
 * - Classes d'etat prefixees .is-*
 * - Mobile-first responsive design
 */

/* ============================================
   VARIABLES CSS
   ============================================ */
:root {
    /* Couleurs principales */
    --color-primary: #000;
    --color-background: #fff;
    --color-border: #ddd;
    --color-text-light: #666;
    --color-hover: #f5f5f5;
    --color-success: #28a745;

    /* Couleurs des tags */
    --color-tag-profile: #2196F3;
    --color-tag-reference: #4CAF50;
    --color-tag-category: #FF9800;

    /* Espacements */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Divers */
    --border-radius: 0.25rem;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --animation-duration: 0.3s;

    /* Z-index */
    --z-sticky: 100;
    --z-modal-backdrop: 1000;
    --z-modal: 1001;
    --z-skip-link: 9999;
}

/* ============================================
   RESET & BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--color-primary);
    background-color: var(--color-background);
}

/* ============================================
   UTILITAIRES
   ============================================ */
.is-hidden {
    display: none !important;
}

.is-visible {
    display: block !important;
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* ============================================
   SKIP LINK (Accessibilite)
   ============================================ */
.skip-link {
    position: absolute;
    left: -9999px;
    top: -9999px;
    background: var(--color-background);
    color: var(--color-primary);
    padding: var(--spacing-sm);
    text-decoration: none;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    z-index: var(--z-skip-link);
}

.skip-link:focus {
    left: var(--spacing-md);
    top: var(--spacing-md);
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
}

.header__logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}
.header__logo__image{
    vertical-align: text-bottom;
    height: 2rem;
}

.header__menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header__select {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    background: var(--color-background);
    cursor: pointer;
    max-width: 240px;
}

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

.header__separator {
    width: 1px;
    height: 1.5rem;
    background: var(--color-border);
    margin: 0 var(--spacing-xs);
}

/* ============================================
   MAIN LAYOUT
   ============================================ */
.main {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: var(--spacing-lg);
}

/* Quand les filtres sont fermes */
.main.is-filters-closed {
    grid-template-columns: 1fr;
}

.main.is-filters-closed .filters {
    display: none;
}

.main.is-filters-closed .rules-section {
    grid-column: 1;
}

/* ============================================
   FILTERS TOGGLE BUTTON
   ============================================ */
.filters-toggle {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    z-index: var(--z-sticky);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-primary);
    color: var(--color-background);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: var(--shadow), 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s, box-shadow 0.2s;
}

.filters-toggle:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow), 0 6px 16px rgba(0, 0, 0, 0.2);
}

.filters-toggle:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.filters-toggle__icon {
    font-size: 1.25rem;
    line-height: 1;
}

/* Bouton fermer cache sur desktop */
.filters__close-btn {
    display: none;
}

/* ============================================
   FILTERS (Sidebar)
   ============================================ */
.filters {
    background: var(--color-hover);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    height: fit-content;
    position: sticky;
    top: var(--spacing-md);
}

.filters__search {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    margin-bottom: var(--spacing-lg);
}

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

.filters__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.filters__title {
    margin: 0;
    font-size: 1.25rem;
}

.filters__reset-btn {
    background: var(--color-background);
    color: var(--color-text-light);
    border: 1px solid var(--color-border);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
}

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

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

.filters__section {
    margin-bottom: var(--spacing-lg);
}

.filters__details {
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.filters__summary {
    padding: var(--spacing-sm);
    cursor: pointer;
    background: var(--color-background);
    border-radius: var(--border-radius);
    list-style: none;
    user-select: none;
    transition: background-color 0.2s;
}

.filters__summary:hover {
    background: var(--color-hover);
}

.filters__summary h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
}

.filters__options {
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

/* ============================================
   FILTER FIELDSET & RADIO
   ============================================ */
.filters__fieldset {
    border: none;
    padding: 0;
    margin: 0 0 var(--spacing-md) 0;
}

.filters__legend {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.filters__radio-group {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.filter-radio {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.875rem;
    transition: background-color 0.2s, border-color 0.2s;
}

.filter-radio:hover {
    background-color: var(--color-hover);
}

.filter-radio:has(input:checked) {
    background-color: var(--color-primary);
    color: var(--color-background);
    border-color: var(--color-primary);
}

.filter-radio input {
    display: none;
}

/* ============================================
   FILTER LABEL (BEM)
   ============================================ */
.filter-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    user-select: none;
    transition: color 0.2s, background-color 0.2s;
}

.filter-label:hover {
    background-color: #e9ecef;
    color: var(--color-primary);
}

.filter-label__input {
    margin-right: var(--spacing-sm);
}

.filter-label__text {
    flex: 1;
}

.filter-label__count {
    background: var(--color-border);
    color: var(--color-primary);
    padding: 0.125rem 0.25rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-inline-start: auto;
}

.filter-label__count.is-complete {
    background: var(--color-success);
    color: var(--color-background);
}

/* ============================================
   RULES SECTION
   ============================================ */
.rules-section {
    grid-column: 2;
}

.rules-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.rules-header__title {
    margin: 0;
}

.rules-header__count {
    font-weight: normal;
}

.rules-summary {
    margin: 0 0 var(--spacing-md) 0;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-style: italic;
}

.rules-summary:empty {
    display: none;
}

.summary-filter {
    background: var(--color-border);
    border: none;
    border-radius: 0.25rem;
    padding: 0.125rem 0.375rem;
    font-size: inherit;
    font-style: inherit;
    font-family: inherit;
    color: var(--color-primary);
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.summary-filter:hover {
    background: var(--color-primary);
    color: var(--color-background);
}

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

.summary-filter--search {
    background: var(--color-highlight, #fff3cd);
    color: var(--color-text);
}

.summary-filter--search:hover {
    background: var(--color-primary);
    color: var(--color-background);
}

/* ============================================
   STATS (inline dans le titre)
   ============================================ */
.stats {
    background: var(--color-border);
    color: var(--color-primary);
    padding: 0.125rem 0.5rem;
    border-radius: 1rem;
    font-weight: 600;
    margin-inline-start: auto;
}

.stats--complete {
    background-color: var(--color-success);
    color: var(--color-background);
}

/* ============================================
   RULES GRID
   ============================================ */
.rules-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

/* ============================================
   RULE CARD (BEM)
   ============================================ */
.rule-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: border-color var(--animation-duration);
}

.rule-card.is-checked {
    border-color: var(--color-primary);
    background: #f8f9fa;
}

.rule-card.is-checked .rule__id {
    background: var(--color-success);
    color: var(--color-background);
}


/* Details accordion */
.rule__details {
    width: 100%;
}

/* Rule Header (summary) */
.rule__header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
    list-style: none;
}

.rule__header::-webkit-details-marker {
    display: none;
}

/* Zone de cochage (numéro + titre) */
.rule__check-zone {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.rule__check-zone:hover {
    background: var(--color-hover);
}

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

/* Checkbox masquee visuellement mais accessible */
.rule-checkbox {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.rule__id {
    background: var(--color-border);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-family: monospace;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.rule__title {
    flex: 1;
    font-size: 0.95rem;
    font-weight: 500;
    line-height: 1.4;
    color: var(--color-primary);
}

/* Toggle button (a droite) */
.rule__toggle {
    flex-shrink: 0;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-hover);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text-light);
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.rule__toggle::before {
    content: "+";
}

.rule__toggle:hover,
.rule__header:hover .rule__toggle {
    background: var(--color-border);
    color: var(--color-primary);
}

/* Annuler le hover du toggle quand on survole la zone de cochage */
.rule__header:has(.rule__check-zone:hover) .rule__toggle {
    background: var(--color-hover);
    color: var(--color-text-light);
}

.rule__details[open] .rule__toggle::before {
    content: "−";
}

/* Rule Body (expanded content) */
.rule__body {
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
}

.rule__content {
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    padding: var(--spacing-md);
    background: var(--color-hover);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
}

.rule__content p {
    margin-bottom: var(--spacing-xs);
}

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

.rule__content ul,
.rule__content ol {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
}

.rule__content li:last-child {
    margin-bottom: 0;
}

.rule__content h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.rule__content h3:first-child {
    margin-top: 0;
}

.rule__content a {
    color: var(--color-tag-profile);
    text-decoration: underline;
}

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

/* Admonitions (blocs d'astuce, avertissement, etc.) */
.admonition {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 4px solid;
}

.admonition__title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

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

.admonition--tip {
    background: #d4edda;
    border-color: #28a745;
    color: #155724;
}

.admonition--tip .admonition__title {
    color: #155724;
}

.admonition--warning {
    background: #fff3cd;
    border-color: #ffc107;
    color: #856404;
}

.admonition--warning .admonition__title {
    color: #856404;
}

.admonition--info {
    background: #d1ecf1;
    border-color: #17a2b8;
    color: #0c5460;
}

.admonition--info .admonition__title {
    color: #0c5460;
}

.admonition--danger {
    background: #f8d7da;
    border-color: #dc3545;
    color: #721c24;
}

.admonition--danger .admonition__title {
    color: #721c24;
}

.admonition--note {
    background: #e2e3e5;
    border-color: #6c757d;
    color: #383d41;
}

.admonition--note .admonition__title {
    color: #383d41;
}

/* Rule Meta */
.rule__meta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.rule__meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    font-size: 0.85rem;
}

.rule__tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

/* ============================================
   TAGS (BEM)
   ============================================ */
.tag {
    background: var(--color-border);
    padding: 0.125rem 0.5rem;
    border-radius: 0.125rem;
    font-size: 0.75rem;
    color: var(--color-text-light);
}

.tag--profile {
    background: var(--color-tag-profile);
    color: white;
}

.tag--reference {
    background: var(--color-tag-reference);
    color: white;
}

.tag--category {
    background: var(--color-tag-category);
    color: white;
}

.tag[data-filter-type] {
    cursor: pointer;
    transition: transform 0.1s ease, box-shadow 0.1s ease, opacity 0.1s ease;
}

.tag[data-filter-type]:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.tag[data-filter-type]:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.tag[data-filter-type].is-active {
    box-shadow: 0 0 0 2px var(--color-background), 0 0 0 4px currentColor;
}

/* ============================================
   BUTTONS (BEM)
   ============================================ */
.btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background: var(--color-background);
    color: var(--color-primary);
    cursor: pointer;
    font-size: 0.875rem;
    transition: background-color 0.2s;
    text-decoration: none;
    display: inline-block;
    white-space: nowrap;
    line-height: normal;
}

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

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

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

.btn--primary:hover {
    background: #333;
}

.btn--secondary {
    background: var(--color-background);
    color: var(--color-primary);
}

.btn--icon {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 1rem;
    line-height: 1;
}

.btn--danger {
    color: #dc3545;
}

.btn--danger:hover {
    background: #dc3545;
    color: var(--color-background);
    border-color: #dc3545;
}

/* ============================================
   PERSISTENCE ACTIONS
   ============================================ */
.persistence-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ============================================
   NO RULES / ERROR MESSAGES
   ============================================ */
.no-rules,
.error {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--color-hover);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    grid-column: 1 / -1;
    color: var(--color-text-light);
}

.error {
    border-color: #dc3545;
    color: #dc3545;
}

/* ============================================
   HIGHLIGHT (Recherche)
   ============================================ */
mark {
    background: #ffeb3b;
    color: #000;
    padding: 0 2px;
    border-radius: 2px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
    }

    .header {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .header__menu {
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
    }

    .header__select {
        flex: 1;
        min-width: 150px;
    }

    .header__separator {
        display: none;
    }

    .main {
        grid-template-columns: 1fr;
    }

    /* Filtres en overlay sur mobile */
    .filters {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: var(--z-modal);
        border-radius: 0;
        overflow-y: auto;
        display: none;
        padding-top: calc(var(--spacing-lg) + 2rem);
    }

    .main.is-filters-open .filters {
        display: block;
    }

    /* Bouton fermer dans les filtres sur mobile */
    .filters__close-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        top: var(--spacing-md);
        right: var(--spacing-md);
        width: 2rem;
        height: 2rem;
        background: var(--color-background);
        border: 1px solid var(--color-border);
        border-radius: var(--border-radius);
        font-size: 1.25rem;
        cursor: pointer;
        line-height: 1;
    }

    .filters__close-btn:hover {
        background: var(--color-hover);
    }

    .rules-section {
        grid-column: 1;
    }

    .rules-grid {
        grid-template-columns: 1fr;
    }

    .rules-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .persistence-actions {
        width: 100%;
    }

    .persistence-actions .btn {
        flex: 1;
        text-align: center;
    }
}

/* ============================================
   FOCUS VISIBLE (Accessibilite amelioree)
   ============================================ */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============================================
   MODAL STYLES (Body state)
   ============================================ */
body.is-modal-open {
    overflow: hidden;
}