/* ==========================================
   VARIABLES CSS
   ========================================== */
:root {
    /* Couleurs principales - Palette terracotta moderne */
    --color-primary: #d4693f;
    --color-primary-dark: #b85432;
    --color-primary-light: #e88c6a;
    --color-secondary: #2d5d4f;
    --color-accent: #f4a261;
    
    /* Couleurs de fond */
    --color-bg-main: #fdfaf6;
    --color-bg-sidebar: #2a2a2a;
    --color-bg-card: #ffffff;
    --color-bg-hover: #f5f0eb;
    
    /* Couleurs de texte */
    --color-text-dark: #2a2a2a;
    --color-text-light: #f5f5f5;
    --color-text-muted: #6b6b6b;
    
    /* Typographie */
    --font-display: 'Crimson Pro', serif;
    --font-body: 'Quicksand', sans-serif;
    
    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Tailles */
    --sidebar-width: 300px;
    --border-radius: 16px;
    --border-radius-sm: 8px;
    
    /* Ombres */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-dark);
    background: var(--color-bg-main);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

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

/* ==========================================
   BOUTON MENU MOBILE
   ========================================== */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    width: 48px;
    height: 48px;
    background: var(--color-bg-sidebar);
    border-radius: 50%;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-medium);
}

.mobile-menu-toggle span {
    width: 22px;
    height: 2px;
    background: var(--color-text-light);
    transition: var(--transition-fast);
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.mobile-overlay.active {
    opacity: 1;
}

/* ==========================================
   SIDEBAR
   ========================================== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--color-bg-sidebar);
    color: var(--color-text-light);
    padding: var(--spacing-lg) var(--spacing-md);
    overflow-y: auto;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-medium);
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.sidebar-header {
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    animation: fadeInDown 0.6s ease;
}

.logo-icon {
    font-size: 3rem;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================
   RECHERCHE
   ========================================== */
.search-container {
    position: relative;
    margin-bottom: var(--spacing-lg);
    animation: fadeInDown 0.6s ease 0.1s backwards;
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-right: 3rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-sm);
    color: var(--color-text-light);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.search-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--color-primary);
}

.search-btn {
    position: absolute;
    right: var(--spacing-xs);
    top: 50%;
    transform: translateY(-50%);
    padding: var(--spacing-xs);
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition-fast);
}

.search-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ==========================================
   NAVIGATION CATÉGORIES
   ========================================== */
.categories-nav {
    animation: fadeInDown 0.6s ease 0.2s backwards;
}

.nav-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.categories-list {
    list-style: none;
}

.category-item {
    margin-bottom: var(--spacing-xs);
    opacity: 0;
    animation: fadeInLeft 0.4s ease forwards;
}

.category-item:nth-child(1) { animation-delay: 0.1s; }
.category-item:nth-child(2) { animation-delay: 0.15s; }
.category-item:nth-child(3) { animation-delay: 0.2s; }
.category-item:nth-child(4) { animation-delay: 0.25s; }
.category-item:nth-child(5) { animation-delay: 0.3s; }
.category-item:nth-child(6) { animation-delay: 0.35s; }
.category-item:nth-child(7) { animation-delay: 0.4s; }
.category-item:nth-child(8) { animation-delay: 0.45s; }
.category-item:nth-child(9) { animation-delay: 0.5s; }
.category-item:nth-child(10) { animation-delay: 0.55s; }

.category-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-light);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.category-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--color-primary);
    transform: scaleY(0);
    transition: var(--transition-fast);
}

.category-link:hover {
    background: rgba(255, 255, 255, 0.1);
    padding-left: calc(var(--spacing-md) + 6px);
}

.category-link:hover::before {
    transform: scaleY(1);
}

.category-link.active {
    background: linear-gradient(135deg, rgba(212, 105, 63, 0.3), rgba(244, 162, 97, 0.3));
    padding-left: calc(var(--spacing-md) + 6px);
}

.category-link.active::before {
    transform: scaleY(1);
}

.category-icon {
    font-size: 1.5rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.category-name {
    font-weight: 500;
    font-size: 0.95rem;
}

/* Skeleton pour le chargement */
.category-skeleton {
    height: 48px;
    margin-bottom: var(--spacing-xs);
    background: linear-gradient(90deg, rgba(255,255,255,0.1) 25%, rgba(255,255,255,0.2) 50%, rgba(255,255,255,0.1) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: var(--border-radius-sm);
}

/* ==========================================
   SIDEBAR FOOTER
   ========================================== */
.sidebar-footer {
    margin-top: auto;
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    animation: fadeIn 0.6s ease 0.6s backwards;
}

/* ==========================================
   CONTENU PRINCIPAL
   ========================================== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    padding: var(--spacing-xl) var(--spacing-lg);
    animation: fadeIn 0.6s ease;
}

/* ==========================================
   HEADER DE PAGE
   ========================================== */
.page-header {
    margin-bottom: var(--spacing-xl);
    animation: fadeInDown 0.6s ease;
}

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

.page-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-dark);
    position: relative;
    display: inline-block;
}

.page-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 2px;
}

.header-stats {
    display: flex;
    gap: var(--spacing-sm);
}

.stat-badge {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-card);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

/* ==========================================
   GRILLE DE RECETTES
   ========================================== */
.recipes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.recipe-card {
    background: var(--color-bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
    cursor: pointer;
    opacity: 0;
    animation: scaleIn 0.5s ease forwards;
    position: relative;
}

.recipe-card:nth-child(1) { animation-delay: 0.1s; }
.recipe-card:nth-child(2) { animation-delay: 0.15s; }
.recipe-card:nth-child(3) { animation-delay: 0.2s; }
.recipe-card:nth-child(4) { animation-delay: 0.25s; }
.recipe-card:nth-child(5) { animation-delay: 0.3s; }
.recipe-card:nth-child(6) { animation-delay: 0.35s; }

.recipe-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.recipe-image-container {
    position: relative;
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: linear-gradient(135deg, #f5f0eb, #e8ddd3);
}

.recipe-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.recipe-card:hover .recipe-image {
    transform: scale(1.1);
}

.recipe-category-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: 0.4rem 0.9rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.recipe-content {
    padding: var(--spacing-md);
}

.recipe-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-dark);
    line-height: 1.3;
}

.recipe-description {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.recipe-meta {
    display: flex;
    gap: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.meta-icon {
    font-size: 1.1rem;
}

/* Skeleton pour le chargement */
.recipe-skeleton {
    background: var(--color-bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.recipe-skeleton::before {
    content: '';
    display: block;
    width: 100%;
    height: 240px;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

.recipe-skeleton::after {
    content: '';
    display: block;
    padding: var(--spacing-md);
}

/* ==========================================
   DÉTAIL DE RECETTE
   ========================================== */
.recipe-detail {
    animation: fadeIn 0.4s ease;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-card);
    color: var(--color-text-dark);
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-lg);
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.back-btn:hover {
    background: var(--color-primary);
    color: white;
    transform: translateX(-4px);
}

.detail-container {
    background: var(--color-bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    animation: scaleIn 0.5s ease;
}

.detail-header {
    position: relative;
    height: 400px;
    overflow: hidden;
}

.detail-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.detail-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-xl);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
}

.detail-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.detail-category {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-weight: 600;
}

.detail-body {
    padding: var(--spacing-xl);
}

.detail-meta {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-bg-hover);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.meta-detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.meta-detail-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.meta-detail-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.detail-section {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-dark);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-icon {
    font-size: 1.5rem;
}

.ingredients-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-sm);
}

.ingredient-item {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-hover);
    border-radius: var(--border-radius-sm);
    border-left: 3px solid var(--color-primary);
    transition: var(--transition-fast);
}

.ingredient-item:hover {
    background: #efe8e0;
    transform: translateX(4px);
}

.instructions-text {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-dark);
    white-space: pre-wrap;
}

.source-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.source-link:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ==========================================
   MESSAGES
   ========================================== */
.loading-message,
.error-message {
    text-align: center;
    padding: var(--spacing-xl);
    animation: fadeIn 0.4s ease;
}

.spinner {
    width: 50px;
    height: 50px;
    margin: 0 auto var(--spacing-md);
    border: 4px solid rgba(212, 105, 63, 0.2);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-message p,
.error-message p {
    font-size: 1.1rem;
    color: var(--color-text-muted);
}

.retry-btn {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-primary);
    color: white;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    transition: var(--transition-fast);
}

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

/* ==========================================
   PAGINATION
   ========================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
}

.pagination-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-bg-card);
    color: var(--color-text-dark);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination-info {
    font-weight: 600;
    color: var(--color-text-dark);
}

/* ==========================================
   ANIMATIONS
   ========================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ==========================================
   RESPONSIVE - TABLETTE
   ========================================== */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 260px;
    }
    
    .recipes-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-md);
    }
    
    .page-title {
        font-size: 2rem;
    }
}

/* ==========================================
   RESPONSIVE - MOBILE
   ========================================== */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .mobile-overlay.active {
        display: block;
    }
    
    .main-content {
        margin-left: 0;
        padding: var(--spacing-lg) var(--spacing-md);
        padding-top: 5rem;
    }
    
    .page-header {
        margin-bottom: var(--spacing-lg);
    }
    
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    .recipes-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .recipe-image-container {
        height: 200px;
    }
    
    .detail-header {
        height: 300px;
    }
    
    .detail-title {
        font-size: 1.8rem;
    }
    
    .detail-body {
        padding: var(--spacing-md);
    }
    
    .detail-meta {
        gap: var(--spacing-sm);
    }
    
    .ingredients-list {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .logo-text {
        font-size: 1.3rem;
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    .recipe-title {
        font-size: 1.2rem;
    }
    
    .detail-title {
        font-size: 1.5rem;
    }
}