/**
 * CodeVault Knowledge Base - Custom Styles
 * Matches CodeVault74 theme design (dark + orange)
 */

/* ========== VARIABLES (reprises du thème) ========== */
:root {
    --kb-color-bg-primary: #1a1a1a;
    --kb-color-bg-secondary: #2a2a2a;
    --kb-color-bg-tertiary: #333333;
    --kb-color-accent: #F36C21;
    --kb-color-accent-hover: #ff9d1a;
    --kb-color-text-primary: #e0e0e0;
    --kb-color-text-secondary: #b0b0b0;
    --kb-color-text-muted: #808080;
    --kb-color-border: #444444;
    --kb-spacing-sm: 1rem;
    --kb-spacing-md: 1.5rem;
    --kb-spacing-lg: 2.5rem;
    --kb-transition: 0.3s ease;
    --kb-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --kb-shadow-glow: 0 0 20px rgba(243, 108, 33, 0.3);
}

/* ========== PAGE HEADER ========== */
.page-header {
    text-align: center;
    margin-bottom: var(--kb-spacing-lg);
    padding-bottom: var(--kb-spacing-md);
    border-bottom: 2px solid var(--kb-color-border);
}

.page-title {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--kb-color-accent), #ffb84d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--kb-spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.solutions-icon {
    font-size: 3rem;
    filter: drop-shadow(0 0 10px rgba(243, 108, 33, 0.5));
}

.page-description {
    color: var(--kb-color-text-secondary);
    font-size: 1.125rem;
    margin: 0;
}

/* ========== FILTRES ========== */
.solutions-filters {
    background: var(--kb-color-bg-secondary);
    padding: var(--kb-spacing-md);
    border-radius: 12px;
    margin-bottom: var(--kb-spacing-lg);
    border: 1px solid var(--kb-color-border);
}

.filters-form {
    display: flex;
    gap: var(--kb-spacing-sm);
    flex-wrap: wrap;
    align-items: flex-end;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-group label {
    display: block;
    color: var(--kb-color-text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.filter-group select,
.filter-group .search-input {
    width: 100%;
    padding: 0.75rem;
    background: var(--kb-color-bg-primary);
    border: 1px solid var(--kb-color-border);
    border-radius: 6px;
    color: var(--kb-color-text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--kb-transition);
}

.filter-group select {
    cursor: pointer;
}

.filter-group .search-input::placeholder {
    color: var(--kb-color-text-muted);
    opacity: 0.7;
}

.filter-group select:hover,
.filter-group select:focus,
.filter-group .search-input:hover,
.filter-group .search-input:focus {
    border-color: var(--kb-color-accent);
    outline: none;
}

/* Groupe de recherche plus large */
.search-group {
    flex: 1.5;
    min-width: 250px;
}

.reset-filters,
.btn-search {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    transition: all var(--kb-transition);
    align-self: flex-end;
    white-space: nowrap;
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
    border: 2px solid var(--kb-color-accent);
}

.reset-filters {
    background: transparent;
    color: var(--kb-color-accent);
    text-decoration: none;
    display: inline-block;
}

.reset-filters:hover {
    background: var(--kb-color-accent);
    color: var(--kb-color-bg-primary);
}

.btn-search {
    background: var(--kb-color-accent);
    color: var(--kb-color-bg-primary);
}

.btn-search:hover {
    background: var(--kb-color-accent-hover);
    border-color: var(--kb-color-accent-hover);
    transform: translateY(-2px);
}

/* ========== GRILLE DE SOLUTIONS ========== */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--kb-spacing-md);
    margin-bottom: var(--kb-spacing-lg);
}

.solution-card {
    background: var(--kb-color-bg-secondary);
    border: 1px solid var(--kb-color-border);
    border-radius: 12px;
    padding: var(--kb-spacing-md);
    transition: all var(--kb-transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--kb-color-accent);
    transition: height var(--kb-transition);
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--kb-shadow-glow);
    border-color: var(--kb-color-accent);
}

.solution-card:hover::before {
    height: 100%;
}

/* ========== SOLUTION HEADER ========== */
.solution-header {
    margin-bottom: var(--kb-spacing-sm);
}

.solution-title {
    font-size: 1.5rem;
    margin-bottom: var(--kb-spacing-sm);
}

.solution-title a {
    color: var(--kb-color-text-primary);
    text-decoration: none;
    transition: color var(--kb-transition);
}

.solution-title a:hover {
    color: var(--kb-color-accent);
}

/* ========== TAXONOMIES / BADGES ========== */
.solution-taxonomies {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--kb-spacing-sm);
}

.taxonomy-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.taxonomy-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--kb-transition);
}

.os-badge {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.cat-badge {
    background: rgba(168, 85, 247, 0.2);
    color: #c084fc;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

.diff-badge {
    background: rgba(243, 108, 33, 0.2);
    color: var(--kb-color-accent);
    border: 1px solid rgba(243, 108, 33, 0.3);
}

.taxonomy-badge:hover {
    transform: translateY(-2px);
}

/* ========== EXCERPT ========== */
.solution-excerpt {
    color: var(--kb-color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--kb-spacing-sm);
    flex: 1;
}

.solution-excerpt p {
    margin: 0;
}

/* ========== META INFO ========== */
.solution-meta {
    display: flex;
    gap: var(--kb-spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--kb-spacing-sm);
    padding-top: var(--kb-spacing-sm);
    border-top: 1px solid var(--kb-color-border);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--kb-color-text-muted);
}

.meta-icon {
    font-size: 1rem;
}

/* ========== LIEN SOLUTION ========== */
.solution-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--kb-color-accent);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--kb-transition);
    align-self: flex-start;
}

.solution-link .arrow {
    transition: transform var(--kb-transition);
}

.solution-link:hover {
    color: var(--kb-color-accent-hover);
}

.solution-link:hover .arrow {
    transform: translateX(4px);
}

/* ========== NO SOLUTIONS ========== */
.no-solutions {
    text-align: center;
    padding: var(--kb-spacing-lg) 0;
    background: var(--kb-color-bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--kb-color-border);
}

.no-solutions p {
    color: var(--kb-color-text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--kb-spacing-md);
}

.btn-reset {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: var(--kb-color-accent);
    color: var(--kb-color-bg-primary);
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all var(--kb-transition);
}

.btn-reset:hover {
    background: var(--kb-color-accent-hover);
    transform: translateY(-2px);
}

/* ========== SINGLE SOLUTION ========== */
.solution-single {
    max-width: 900px;
    margin: 0 auto;
}

/* Breadcrumb */
.solution-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--kb-color-text-muted);
    margin-bottom: var(--kb-spacing-md);
    padding-bottom: var(--kb-spacing-sm);
    border-bottom: 1px solid var(--kb-color-border);
}

.solution-breadcrumb a {
    color: var(--kb-color-accent);
    text-decoration: none;
    transition: color var(--kb-transition);
}

.solution-breadcrumb a:hover {
    color: var(--kb-color-accent-hover);
}

.solution-breadcrumb .separator {
    color: var(--kb-color-text-muted);
}

.solution-breadcrumb .current {
    color: var(--kb-color-text-secondary);
}

/* Header single */
.solution-single .solution-header {
    text-align: center;
    margin-bottom: var(--kb-spacing-lg);
    padding-bottom: var(--kb-spacing-lg);
    border-bottom: 2px solid var(--kb-color-border);
}

.solution-single .solution-title {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--kb-color-accent), #ffb84d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--kb-spacing-md);
}

/* Taxonomies single */
.solution-taxonomies-single {
    display: flex;
    justify-content: center;
    gap: var(--kb-spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--kb-spacing-md);
}

.solution-taxonomies-single .taxonomy-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.solution-taxonomies-single .taxonomy-label {
    color: var(--kb-color-text-muted);
    font-size: 0.875rem;
    font-weight: 600;
}

.solution-taxonomies-single .taxonomy-badge {
    text-decoration: none;
}

/* Meta info single */
.solution-meta-info {
    display: flex;
    justify-content: center;
    gap: var(--kb-spacing-lg);
    flex-wrap: wrap;
    padding: var(--kb-spacing-sm);
    background: rgba(243, 108, 33, 0.05);
    border-radius: 8px;
}

.solution-meta-info .meta-item {
    color: var(--kb-color-text-secondary);
}

/* Summary */
.solution-summary {
    background: rgba(243, 108, 33, 0.1);
    border-left: 4px solid var(--kb-color-accent);
    padding: var(--kb-spacing-md);
    border-radius: 8px;
    margin-bottom: var(--kb-spacing-lg);
}

.solution-summary h3 {
    color: var(--kb-color-accent);
    font-size: 1.25rem;
    margin-bottom: var(--kb-spacing-sm);
}

.solution-summary p {
    color: var(--kb-color-text-secondary);
    margin: 0;
}

/* Content */
.solution-content {
    background: var(--kb-color-bg-secondary);
    padding: var(--kb-spacing-lg);
    border-radius: 12px;
    line-height: 1.8;
    margin-bottom: var(--kb-spacing-lg);
}

.solution-content h2,
.solution-content h3,
.solution-content h4 {
    color: var(--kb-color-accent);
    margin-top: var(--kb-spacing-md);
    margin-bottom: var(--kb-spacing-sm);
}

.solution-content p {
    margin-bottom: var(--kb-spacing-sm);
    color: var(--kb-color-text-secondary);
}

.solution-content ul,
.solution-content ol {
    margin-bottom: var(--kb-spacing-sm);
    padding-left: var(--kb-spacing-lg);
    color: var(--kb-color-text-secondary);
}

.solution-content li {
    margin-bottom: 0.5rem;
}

.solution-content code {
    background: var(--kb-color-bg-primary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'Fira Code', monospace;
    color: var(--kb-color-accent);
    font-size: 0.9em;
}

.solution-content pre {
    background: var(--kb-color-bg-primary);
    padding: var(--kb-spacing-md);
    border-radius: 8px;
    overflow-x: auto;
    border-left: 4px solid var(--kb-color-accent);
}

.solution-content pre code {
    background: none;
    padding: 0;
}

/* Keywords */
.solution-keywords {
    background: var(--kb-color-bg-secondary);
    padding: var(--kb-spacing-md);
    border-radius: 12px;
    margin-bottom: var(--kb-spacing-lg);
}

.solution-keywords h4 {
    color: var(--kb-color-accent);
    margin-bottom: var(--kb-spacing-sm);
}

.keywords-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.keyword-tag {
    background: var(--kb-color-bg-tertiary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--kb-color-text-secondary);
    border: 1px solid var(--kb-color-border);
    transition: all var(--kb-transition);
}

.keyword-tag:hover {
    border-color: var(--kb-color-accent);
    color: var(--kb-color-accent);
}

/* Footer */
.solution-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--kb-spacing-md);
    border-top: 2px solid var(--kb-color-border);
    margin-bottom: var(--kb-spacing-lg);
}

.solution-actions {
    display: flex;
    gap: var(--kb-spacing-sm);
}

.btn-back,
.btn-share {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--kb-transition);
    cursor: pointer;
    border: none;
    font-family: inherit;
    font-size: 1rem;
}

.btn-back {
    background: transparent;
    border: 2px solid var(--kb-color-accent);
    color: var(--kb-color-accent);
}

.btn-back:hover {
    background: var(--kb-color-accent);
    color: var(--kb-color-bg-primary);
}

.btn-share {
    background: var(--kb-color-accent);
    color: var(--kb-color-bg-primary);
}

.btn-share:hover {
    background: var(--kb-color-accent-hover);
    transform: translateY(-2px);
}

.solution-updated {
    color: var(--kb-color-text-muted);
    font-size: 0.875rem;
}

/* Navigation */
.solution-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--kb-spacing-md);
    margin-top: var(--kb-spacing-lg);
}

.nav-item {
    background: var(--kb-color-bg-secondary);
    padding: var(--kb-spacing-md);
    border-radius: 12px;
    border: 1px solid var(--kb-color-border);
    transition: all var(--kb-transition);
}

.nav-item:hover {
    border-color: var(--kb-color-accent);
    transform: translateX(-4px);
}

.next-solution:hover {
    transform: translateX(4px);
}

.nav-label {
    display: block;
    font-size: 0.875rem;
    color: var(--kb-color-text-muted);
    margin-bottom: 0.5rem;
}

.nav-title {
    color: var(--kb-color-accent);
    font-weight: 600;
    text-decoration: none;
    transition: color var(--kb-transition);
}

.nav-title:hover {
    color: var(--kb-color-accent-hover);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .filters-form {
        flex-direction: column;
    }
    
    .filter-group,
    .search-group {
        width: 100%;
        min-width: auto;
    }
    
    .reset-filters,
    .btn-search {
        width: 100%;
        text-align: center;
    }
    
    .solution-single .solution-title {
        font-size: 2rem;
    }
    
    .solution-footer {
        flex-direction: column;
        gap: var(--kb-spacing-sm);
        align-items: flex-start;
    }
    
    .solution-navigation {
        grid-template-columns: 1fr;
    }
    
    .solution-taxonomies-single {
        flex-direction: column;
        align-items: center;
    }
}