/* ===== VARIABLES ===== */
:root {
    --color-primary:      #4f46e5;
    --color-primary-dark: #4338ca;
    --color-primary-light:#eef2ff;
    --color-accent:       #f97316;
    --color-accent-dark:  #ea580c;
    --color-bg:           #f0f4ff;
    --color-surface:      #ffffff;
    --color-text:         #111827;
    --color-muted:        #6b7280;
    --color-border:       #dde4f8;
    --color-success:      #16a34a;
    --shadow-card:        0 2px 8px rgba(79, 70, 229, 0.08);
    --shadow-hover:       0 8px 28px rgba(79, 70, 229, 0.2);
    --shadow-btn:         0 4px 14px rgba(79, 70, 229, 0.35);
    --radius-sm:          8px;
    --radius-md:          14px;
    --radius-lg:          20px;
    --radius-pill:        999px;
    --transition:         0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', system-ui, Arial, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.5;
}

a {
    text-decoration: none;
    color: inherit;
}

.hidden {
    display: none !important;
}

/* ===== HEADER ===== */
.site-header {
    background: linear-gradient(135deg, #4338ca 0%, #6366f1 100%);
    color: #fff;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(79, 70, 229, 0.4);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    transition: opacity var(--transition);
}

.site-logo:hover {
    opacity: 0.85;
}

.site-logo img {
    height: 40px;
    width: auto;
    display: block;
    border-radius: 6px;
}

/* Bouton panier */
.cart-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    font-size: 0.92rem;
    font-weight: 700;
    padding: 9px 20px;
    border-radius: var(--radius-pill);
    background-color: #fff;
    transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.cart-link:hover {
    background-color: var(--color-accent);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(249, 115, 22, 0.4);
}

.cart-badge {
    background-color: var(--color-accent);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 800;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    transition: background-color var(--transition);
}

.cart-link:hover .cart-badge {
    background-color: var(--color-primary);
}

/* ===== CONTENU PRINCIPAL ===== */
.main-content {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 36px 16px;
}

/* ===== BARRE DE FILTRES ===== */
.filters-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 36px;
    flex-wrap: wrap;
    align-items: center;
}

.search-input,
.category-select {
    padding: 12px 18px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-pill);
    font-size: 0.95rem;
    background-color: var(--color-surface);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
    color: var(--color-text);
    font-family: inherit;
}

.search-input {
    flex: 1;
    min-width: 220px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236366f1' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 16px center;
    padding-left: 44px;
}

.search-input:focus,
.category-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}

.category-select {
    min-width: 200px;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236366f1' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

/* ===== GRILLE DES PRODUITS ===== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(248px, 1fr));
    gap: 24px;
}

/* ===== CARTE PRODUIT ===== */
.product-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition), box-shadow var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-primary-light);
}

.product-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background-color: #f0f0f0;
}

.product-card .no-image {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, #eef2ff, #e0e7ff);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #a5b4fc;
    font-size: 0.82rem;
    font-style: italic;
}

.product-card-body {
    padding: 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.product-card-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
}

/* Badge catégorie */
.product-card-category {
    display: inline-block;
    font-size: 0.72rem;
    color: var(--color-primary);
    background-color: var(--color-primary-light);
    border-radius: var(--radius-pill);
    padding: 2px 10px;
    font-weight: 600;
    letter-spacing: 0.3px;
    width: fit-content;
}

.product-card-price {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--color-accent);
    margin-top: auto;
    padding-top: 10px;
}

/* Bouton "Voir le produit" */
.btn-view {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px;
    background: linear-gradient(135deg, var(--color-primary), #6366f1);
    color: #fff;
    font-size: 0.88rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    width: 100%;
    letter-spacing: 0.3px;
    transition: opacity var(--transition), filter var(--transition);
}

.btn-view::after {
    content: '\2192';
    transition: transform var(--transition);
}

.product-card:hover .btn-view::after {
    transform: translateX(5px);
}

.btn-view:hover {
    filter: brightness(1.1);
}

/* ===== MESSAGE AUCUN RÉSULTAT ===== */
.no-results {
    text-align: center;
    color: var(--color-muted);
    font-size: 1rem;
    margin-top: 60px;
    padding: 40px 20px;
}

/* ===== LIEN RETOUR ===== */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 24px;
    color: var(--color-primary);
    font-size: 0.88rem;
    font-weight: 600;
    padding: 7px 14px;
    border-radius: var(--radius-pill);
    background-color: var(--color-primary-light);
    transition: background-color var(--transition), transform var(--transition);
}

.back-link:hover {
    background-color: #dde4f8;
    transform: translateX(-2px);
}

/* ===== PAGE DÉTAIL PRODUIT ===== */
.product-detail {
    display: flex;
    gap: 48px;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 40px;
    border: 2px solid var(--color-border);
}

.product-detail-image {
    flex: 0 0 380px;
}

.product-detail-image img {
    width: 100%;
    border-radius: var(--radius-md);
    object-fit: cover;
    box-shadow: 0 4px 20px rgba(79, 70, 229, 0.12);
}

.product-detail-image .no-image {
    width: 100%;
    height: 320px;
    background: linear-gradient(135deg, #eef2ff, #e0e7ff);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #a5b4fc;
    font-size: 0.9rem;
    font-style: italic;
}

.product-detail-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.product-detail-category {
    display: inline-block;
    font-size: 0.78rem;
    color: var(--color-primary);
    background-color: var(--color-primary-light);
    border-radius: var(--radius-pill);
    padding: 4px 14px;
    font-weight: 700;
    letter-spacing: 0.5px;
    width: fit-content;
}

.product-detail-name {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-text);
    line-height: 1.2;
}

.product-detail-price {
    font-size: 2rem;
    font-weight: 900;
    color: var(--color-accent);
}

.product-detail-description {
    font-size: 0.95rem;
    color: #4b5563;
    line-height: 1.75;
    padding: 16px;
    background-color: var(--color-bg);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--color-primary);
}

/* Tableau des caractéristiques */
.product-characteristics {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 2px solid var(--color-border);
}

.product-characteristics th,
.product-characteristics td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.product-characteristics tr:last-child th,
.product-characteristics tr:last-child td {
    border-bottom: none;
}

.product-characteristics th {
    background-color: var(--color-primary-light);
    font-weight: 700;
    color: var(--color-primary);
    width: 40%;
}

.product-characteristics td {
    background-color: var(--color-surface);
    color: var(--color-text);
}

/* Contrôle de quantité + bouton ajout panier */
.add-to-cart-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
    padding-top: 20px;
    border-top: 2px solid var(--color-border);
}

.quantity-input {
    width: 80px;
    padding: 12px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    text-align: center;
    font-weight: 700;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
    background-color: #fff;
}

.quantity-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}

.btn-add-cart {
    flex: 1;
    padding: 14px 20px;
    background: linear-gradient(135deg, var(--color-accent), #fb923c);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: filter var(--transition), transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
}

.btn-add-cart:hover {
    filter: brightness(1.08);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(249, 115, 22, 0.45);
}

/* Message confirmation ajout panier */
.cart-feedback {
    color: var(--color-success);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 9px 14px;
    background-color: #f0fdf4;
    border-radius: var(--radius-sm);
    border: 2px solid #bbf7d0;
}

@media (max-width: 768px) {
    .product-detail {
        flex-direction: column;
        padding: 20px;
    }

    .product-detail-image {
        flex: none;
        width: 100%;
    }

    .product-detail-name {
        font-size: 1.5rem;
    }
}

/* ===== FOOTER ===== */
.site-footer {
    background: linear-gradient(135deg, #4338ca 0%, #6366f1 100%);
    color: rgba(255,255,255,0.6);
    text-align: center;
    padding: 22px;
    font-size: 0.82rem;
    margin-top: auto;
    letter-spacing: 0.5px;
}

/* ===== PAGE CONFIRMATION ===== */
.confirmation-box {
    max-width: 540px;
    margin: 64px auto;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 56px 48px;
    box-shadow: var(--shadow-hover);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    border: 2px solid var(--color-border);
}

.confirmation-icon {
    width: 84px;
    height: 84px;
    border-radius: 50%;
    background: linear-gradient(135deg, #16a34a, #22c55e);
    color: #fff;
    font-size: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    box-shadow: 0 8px 24px rgba(22, 163, 74, 0.35);
}

.confirmation-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-text);
}

.confirmation-message {
    font-size: 1rem;
    color: #4b5563;
    line-height: 1.65;
    max-width: 380px;
}

.confirmation-email-note {
    font-size: 0.87rem;
    color: var(--color-muted);
    background-color: var(--color-bg);
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    width: 100%;
    border: 1px solid var(--color-border);
}

.confirmation-btn {
    margin-top: 8px;
    width: 100%;
}

/* ===== PAGE CHECKOUT ===== */
.checkout-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-section {
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    gap: 18px;
    border: 2px solid var(--color-border);
}

.form-section-title {
    font-size: 1rem;
    font-weight: 800;
    color: var(--color-primary);
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary-light);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.84rem;
    font-weight: 700;
    color: #374151;
}

.form-group input {
    padding: 12px 14px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
    background-color: #fff;
    color: var(--color-text);
    font-family: inherit;
}

.form-group input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}

.form-group input.invalid {
    border-color: #ef4444;
    background-color: #fff8f8;
}

.form-group small {
    font-size: 0.78rem;
    color: var(--color-muted);
}

.stripe-card-container {
    padding: 14px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: #fff;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.stripe-card-container.focused {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}

.form-error {
    color: #dc2626;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 10px 14px;
    background-color: #fef2f2;
    border-radius: var(--radius-sm);
    border: 2px solid #fecaca;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.88rem;
    color: #4b5563;
    padding: 8px 0;
    border-bottom: 1px solid #f0f4ff;
}

.summary-item:last-child {
    border-bottom: none;
}

.summary-item-name {
    flex: 1;
    font-weight: 500;
}

.summary-item-qty {
    color: var(--color-muted);
    margin: 0 10px;
    font-size: 0.82rem;
}

/* ===== TITRE DE PAGE ===== */
.page-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: 28px;
}

/* ===== PAGE PANIER ===== */
.cart-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 32px;
    align-items: start;
}

.cart-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cart-item {
    display: flex;
    align-items: center;
    gap: 18px;
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 18px;
    box-shadow: var(--shadow-card);
    border: 2px solid var(--color-border);
    transition: box-shadow var(--transition), border-color var(--transition);
}

.cart-item:hover {
    box-shadow: var(--shadow-hover);
    border-color: var(--color-primary-light);
}

.cart-item-image {
    width: 90px;
    height: 90px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    background-color: #eef2ff;
    flex-shrink: 0;
    border: 2px solid var(--color-border);
}

.cart-item-image.no-image {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #a5b4fc;
    font-size: 0.8rem;
    font-style: italic;
}

.cart-item-info {
    flex: 1;
}

.cart-item-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-text);
    margin-bottom: 4px;
}

.cart-item-price {
    font-size: 0.88rem;
    color: var(--color-muted);
}

.cart-item-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.cart-qty-input {
    width: 66px;
    padding: 8px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    text-align: center;
    font-weight: 700;
    outline: none;
    transition: border-color var(--transition);
    background-color: #fff;
}

.cart-qty-input:focus {
    border-color: var(--color-primary);
}

.cart-item-subtotal {
    font-weight: 800;
    font-size: 1.05rem;
    color: var(--color-accent);
    min-width: 80px;
    text-align: right;
}

.btn-remove {
    background: none;
    border: none;
    color: var(--color-muted);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 6px 9px;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background-color var(--transition);
    line-height: 1;
}

.btn-remove:hover {
    background-color: #fef2f2;
    color: #dc2626;
}

/* Bloc résumé — collant sur desktop */
.cart-summary {
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 26px;
    box-shadow: var(--shadow-hover);
    display: flex;
    flex-direction: column;
    gap: 12px;
    border: 2px solid var(--color-border);
    position: sticky;
    top: 84px;
}

.summary-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: 4px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary-light);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
    color: #4b5563;
}

.summary-total {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--color-text);
    border-top: 2px solid var(--color-primary-light);
    padding-top: 14px;
    margin-top: 4px;
}

/* CTA principal */
.btn-checkout {
    display: block;
    text-align: center;
    padding: 15px;
    background: linear-gradient(135deg, var(--color-accent), #fb923c);
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    margin-top: 8px;
    transition: filter var(--transition), transform var(--transition), box-shadow var(--transition);
    border: none;
    cursor: pointer;
    letter-spacing: 0.3px;
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
}

.btn-checkout:hover {
    filter: brightness(1.08);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(249, 115, 22, 0.45);
}

/* Panier vide */
.empty-cart {
    text-align: center;
    padding: 80px 20px;
    color: var(--color-muted);
    font-size: 1.05rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .main-content {
        padding: 20px 12px;
    }

    .filters-bar {
        flex-direction: column;
    }

    .search-input,
    .category-select {
        width: 100%;
    }

    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 14px;
    }

    .product-card img,
    .product-card .no-image {
        height: 150px;
    }

    .cart-layout {
        grid-template-columns: 1fr;
    }

    .cart-summary {
        position: static;
    }

    .cart-item {
        flex-wrap: wrap;
    }

    .cart-item-controls {
        flex-wrap: wrap;
        width: 100%;
        justify-content: space-between;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .confirmation-box {
        margin: 24px auto;
        padding: 36px 24px;
    }

    .page-title {
        font-size: 1.4rem;
        margin-bottom: 20px;
    }

    .product-detail {
        flex-direction: column;
        padding: 20px;
    }

    .product-detail-image {
        flex: none;
        width: 100%;
    }

    .product-detail-name {
        font-size: 1.5rem;
    }
}