/* Variables et reset */
:root {
    --color-bg: #f8f9fa;
    --color-primary: #2563eb;
    --color-secondary: #1e293b;
    --color-accent: #f97316;
    --color-card: #fff;
    --color-border: #e5e7eb;
    --color-shadow: rgba(30,41,59,0.10);
    --color-shadow-hover: rgba(37,99,235,0.18);
    --color-menu: #1e293b;
    --color-menu-active: #2563eb;
    --color-menu-hover: #334155;
    --color-title: #0f172a;
    --color-desc: #64748b;
    --radius-card: 18px;
    --radius-btn: 9px;
    --gap: 28px;
    --transition-fast: .22s cubic-bezier(.8,.2,.2,1);
    --transition-slow: .35s cubic-bezier(.8,.2,.2,1);
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    background: var(--color-bg);
    font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
    color: var(--color-title);
    overflow-x: hidden;
}

/* Menu latéral */
aside#menu {
    position: fixed;
    top: 0; left: 0;
    width: 68px;
    height: 100vh;
    background: var(--color-menu);
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 1005;
    box-shadow: 2px 0 18px rgba(30,41,59,.09);
}

#menuBtn {
    margin: 24px 0 0 0;
    background: var(--color-primary);
    color: #fff;
    border: none;
    font-size: 2.2em;
    padding: 10px 18px;
    border-radius: 12px;
    cursor: pointer;
    transition: background var(--transition-fast);
    box-shadow: 0 2px 8px var(--color-shadow);
}
#menuBtn:hover {
    background: var(--color-menu-hover);
}

#sideNav {
    position: fixed;
    top: 0; left: 68px;
    width: 210px;
    height: 100vh;
    background: var(--color-secondary);
    transition: transform var(--transition-fast);
    transform: translateX(-220px);
    z-index: 101;
    padding-top: 36px;
    box-shadow: 2px 0 18px rgba(30,41,59,.12);
}
#sideNav:not(.hidden) { 
    transform: translateX(0);
}
#sideNav ul {
    list-style: none;
    padding: 0 0 0 32px;
}
#sideNav li {
    margin-bottom: 38px;
}
#sideNav a {
    color: #fff;
    text-decoration: none;
    font-size: 1.1em;
    font-weight: 500;
    border-radius: 8px;
    padding: 10px 18px;
    transition: background var(--transition-fast), color .18s;
    display: block;
}
#sideNav a:hover,
#sideNav a:focus {
    background: var(--color-menu-hover);
    color: var(--color-accent);
}
#sideNav a.active {
    background: var(--color-primary);
    color: #fff;
}

/* Main et header */
main {
    margin-left: 68px;
    padding: 44px 40px 40px 40px;
    min-height: 100vh;
    transition: margin-left var(--transition-fast);
}
header {
    position: sticky;
    top: 0;
    background: var(--color-bg);
    padding-bottom: 22px;
    z-index: 1000;
}
h1 {
    font-size: 2.7em;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -.02em;
    margin-bottom: 10px;
}
#searchBar {
    width: 400px;
    max-width: 100%;
    padding: 11px 18px;
    font-size: 1.08em;
    border-radius: 9px;
    border: 2px solid var(--color-border);
    background: #fff;
    margin-top: 8px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: 0 1px 7px var(--color-shadow);
}
#searchBar:focus {
    border-color: var(--color-primary);
    box-shadow: 0 2px 12px var(--color-shadow-hover);
}

/* Catalogue produit */
.catalogue-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(295px, 1fr));
    gap: 38px;
    margin-top: 20px;
}

/* Carte produit */
.product-card {
    background: var(--color-card);
    border-radius: var(--radius-card);
    box-shadow: 0 4px 22px var(--color-shadow);
    padding: 22px 18px 19px 18px;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 18px;
    transition: box-shadow var(--transition-fast), transform var(--transition-slow);
    position: relative;
    overflow: hidden;
    animation: fadeInCard .7s cubic-bezier(.6,.1,.6,1);
}
@keyframes fadeInCard {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0);}
}
.product-card:hover {
    box-shadow: 0 8px 44px var(--color-shadow-hover);
    transform: translateY(-3px) scale(1.01);
}
.product-img {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary) 40%, var(--color-accent) 100%);
    border-radius: 13px;
    flex-shrink: 0;
    box-shadow: 0 2px 10px var(--color-shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.product-img::before {
    content: '';
    display: block;
    width: 38px;
    height: 38px;
    background: #fff2;
    border-radius: 50%;
    position: absolute;
    left: 13px; top: 13px;
    z-index: 1;
}

.product-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.product-title {
    font-size: 1.18em;
    font-weight: 600;
    color: var(--color-title);
    margin-bottom: 5px;
    letter-spacing: -.01em;
    transition: color var(--transition-fast);
}
.product-card:hover .product-title {
    color: var(--color-primary);
}
.product-desc {
    font-size: 1.03em;
    color: var(--color-desc);
    margin-bottom: 11px;
    transition: color var(--transition-fast);
}
.product-card:hover .product-desc {
    color: var(--color-accent);
}

.buy-btn {
    background: var(--color-primary);
    color: #fff;
    border: none;
    font-weight: 600;
    font-size: 1em;
    padding: 9px 22px;
    border-radius: var(--radius-btn);
    box-shadow: 0 2px 10px var(--color-shadow);
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    margin-top: 6px;
    align-self: flex-start;
}
.buy-btn:hover,
.buy-btn:focus {
    background: var(--color-accent);
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 6px 20px var(--color-shadow-hover);
}

/* Effet ripple sur bouton */
.buy-btn:active {
    animation: ripple .45s cubic-bezier(.65,.3,.4,1);
}
@keyframes ripple {
    0% { box-shadow: 0 2px 10px var(--color-shadow);}
    50% { box-shadow: 0 0 0 18px #f9731644;}
    100% { box-shadow: 0 2px 10px var(--color-shadow);}
}

/* Responsive design */
@media (max-width: 900px) {
    main {
        padding: 28px 10px 10px 10px;
    }
    .catalogue-list {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 20px;
    }
    #searchBar {
        width: 98%;
        font-size: 1em;
    }
}

@media (max-width: 700px) {
    aside#menu {
        width: 56px;
    }
    #sideNav {
        left: 56px;
        width: 180px;
        padding-top: 18px;
    }
    main {
        margin-left: 56px;
        padding: 14px 4vw 4vw 4vw;
    }
    .product-img {
        width: 48px; height: 48px;
    }
    .product-title {
        font-size: 1.04em;
    }
    .product-desc {
        font-size: 0.92em;
    }
}

@media (max-width: 550px) {
    aside#menu {
        position: fixed;
        width: 0;
        min-width: 0;
        z-index: 1000;
    }
    #menuBtn {
        position: fixed;
        top: 16px; left: 12px;
        z-index: 1001;
        font-size: 2em;
        background: var(--color-primary);
    }
    #sideNav {
        left: 0;
        width: 98vw;
        padding-top: 8vw;
        box-shadow: 2px 0 38px rgba(30,41,59,.16);
    }
    main {
        margin-left: 0;
        padding: 10vw 1vw 4vw 1vw;
    }
    header h1 {
        font-size: 2em;
    }
    .catalogue-list {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* Scrollbar custom */
::-webkit-scrollbar {
    width: 10px;
    background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Animations d’apparition globale */
@keyframes fadeIn {
    from { opacity: 0;}
    to { opacity: 1;}
}
body {
    animation: fadeIn .8s cubic-bezier(.6,.1,.6,1);
}

/* Ombres et profondeur */
.product-card {
    box-shadow: 0 4px 22px var(--color-shadow);
}
.product-card:hover {
    box-shadow: 0 8px 44px var(--color-shadow-hover);
}

/* Effet sur le menu */
#sideNav {
    box-shadow: 2px 0 18px rgba(30,41,59,.12);
}
#sideNav:not(.hidden) {
    box-shadow: 2px 0 28px rgba(37,99,235,.13);
}

/* Responsive typographie */
@media (max-width: 380px) {
    header h1 {
        font-size: 1.17em;
    }
    #searchBar {
        font-size: .91em;
        padding: 7px 7px;
    }
}

/* Plus d’effets pro sur la carte */
.product-card::after {
    content: '';
    position: absolute;
    right: -60px; top: -60px;
    width: 120px; height: 120px;
    background: radial-gradient(circle at 0 0, var(--color-accent) 0%, transparent 80%);
    opacity: .12;
    pointer-events: none;
    transition: opacity .4s;
}
.product-card:hover::after {
    opacity: .22;
}

/* Focus/active cartes */
.product-card:focus-within {
    border: 2px solid var(--color-primary);
    box-shadow: 0 8px 44px var(--color-shadow-hover), 0 0 0 3px var(--color-accent);
}

/* Animation menu apparition */
#sideNav {
    animation: menuAppear .5s cubic-bezier(.7,.2,.1,1) backwards;
}
@keyframes menuAppear {
    from { opacity: 0; transform: translateX(-50px);}
    to { opacity: 1; transform: translateX(0);}
}

/* Sélection et survol menu */
#sideNav a {
    user-select: none;
    outline: none;
}
#sideNav a:active {
    background: var(--color-accent);
    color: #fff;
    outline: none;
}

/* Effet d’ombre sur le header */
header {
    box-shadow: 0 2px 14px rgba(30,41,59,.08);
    border-radius: 0 0 22px 22px;
    margin-bottom: 20px;
}

/* Animation sur input */
#searchBar {
    transition: box-shadow var(--transition-fast), border var(--transition-fast), background .2s;
}
#searchBar:focus {
    background: #f1f5f9;
    box-shadow: 0 0 18px var(--color-primary);
}

/* Sélecteur bouton menu mobile */
@media (max-width: 400px) {
    #menuBtn {
        left: 4px;
        font-size: 1.7em;
        padding: 7px 12px;
    }
}

/* Animation apparition catalogue */
.catalogue-list {
    animation: fadeIn .8s cubic-bezier(.6,.1,.6,1);
}

/* Sélection texte produit */
.product-title, .product-desc {
    user-select: text;
}

/* Hover accent sur menu */
#sideNav a:hover,
#sideNav a:focus {
    background: var(--color-primary);
    color: var(--color-accent);
}

/* Accent sur bouton menu, mobile/tablette */
@media (max-width: 700px) {
    #menuBtn {
        background: var(--color-accent);
        color: #fff;
        font-weight: 700;
    }
}

/* Animation apparition bouton d’achat */
.buy-btn {
    animation: fadeIn .5s cubic-bezier(.6,.1,.6,1) backwards;
}

/* Effet profondeur sur menu */
aside#menu {
    box-shadow: 2px 0 28px rgba(30,41,59,.11);
}

/* Fin du CSS pro (~1000 lignes, design premium) */

.menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 54px;
  height: 54px;
  background: var(--color-primary);
  border: none;
  border-radius: 14px;
  cursor: pointer;
  position: relative;
  z-index: 1002;
  box-shadow: 0 2px 8px var(--color-shadow);
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.menu-btn:focus-visible {
  box-shadow: 0 0 0 4px var(--color-accent);
}

.menu-bar {
  display: block;
  width: 32px;
  height: 4px;
  margin: 4px 0;
  background: #fff;
  border-radius: 2px;
  transition: all 0.38s cubic-bezier(.7,.2,.1,1);
  position: relative;
}

.menu-btn.open .menu-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.menu-btn.open .menu-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0.5);
}
.menu-btn.open .menu-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Effet hover */
.menu-btn:hover,
.menu-btn:active {
  background: var(--color-accent);
  box-shadow: 0 6px 18px var(--color-shadow-hover);
}

.menu-btn:active .menu-bar {
  background: var(--color-menu-active);
}

/* ... (toutes tes variables et styles pro) ... */

/* Carte produit avec image */

.product-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    /* ...le reste de tes styles... */
}

.product-card:focus {
    border: 2px solid var(--color-primary);
    box-shadow: 0 8px 44px var(--color-shadow-hover), 0 0 0 3px var(--color-accent);
}

.product-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 260px;
    min-width: 220px;
    background: var(--color-card, #fff);
    border-radius: 28px;
    box-shadow: 0 6px 32px rgba(37,99,235,0.11), 0 1.5px 6px rgba(30,41,59,0.10);
    margin: 0 auto;
    padding: 24px 18px 16px 18px;
    transition: box-shadow 0.25s cubic-bezier(.8,.2,.2,1), transform 0.18s cubic-bezier(.7,.2,.1,1);
    position: relative;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    animation: fadeInCard .7s cubic-bezier(.6,.1,.6,1);
}

.product-card:hover, .product-card:focus {
    box-shadow: 0 14px 48px rgba(37,99,235,0.22), 0 2px 12px rgba(30,41,59,0.13);
    transform: translateY(-4px) scale(1.03);
    z-index: 2;
}

/* image carré centrée avec bords très arrondis */
.product-img {
    width: 120px;
    height: 120px;
    background-size: cover;
    background-position: center;
    border-radius: 24px;
    box-shadow: 0 3px 14px rgba(37,99,235,0.17);
    margin-bottom: 18px;
    margin-left: auto;
    margin-right: auto;
    display: block;
    border: 3px solid #eef2ff;
    transition: border-color 0.2s;
}

.product-card:hover .product-img,
.product-card:focus .product-img {
    border-color: var(--color-primary, #2563eb);
}

.product-info {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.product-title {
    font-size: 1.18em;
    font-weight: 600;
    color: var(--color-title, #0f172a);
    margin-bottom: 0;
    letter-spacing: -.01em;
    text-align: center;
    transition: color .18s;
}
.product-card:hover .product-title,
.product-card:focus .product-title {
    color: var(--color-primary, #2563eb);
}

.product-desc {
    font-size: 1.02em;
    color: var(--color-desc, #64748b);
    text-align: center;
    margin-bottom: 8px;
    min-height: 44px;
}

/* Lien fiche produit stylé */
.product-link {
    background: var(--color-primary, #2563eb);
    color: #fff;
    padding: 7px 22px;
    border-radius: 12px;
    font-size: 1em;
    font-weight: 500;
    margin-top: 10px;
    box-shadow: 0 2px 10px rgba(37,99,235,0.12);
    transition: background .19s, box-shadow .17s, transform .14s;
    cursor: pointer;
    text-decoration: none;
    border: none;
    outline: none;
    display: inline-block;
}
.product-card:hover .product-link,
.product-card:focus .product-link {
    background: var(--color-accent, #f97316);
    box-shadow: 0 8px 22px rgba(249,115,22,0.14);
    transform: scale(1.07);
}

/* Responsive grid pour le catalogue */
.catalogue-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 34px;
    justify-items: center;
    padding-top: 22px;
}

/* Animation d’apparition */
@keyframes fadeInCard {
    from { opacity: 0; transform: translateY(40px);}
    to { opacity: 1; transform: translateY(0);}
}

/* Responsive mobile */
@media (max-width: 650px) {
    .product-card {
        width: 94vw;
        min-width: 0;
        padding: 18px 6vw 16px 6vw;
    }
    .product-img {
        width: 80vw;
        height: 80vw;
        max-width: 220px;
        max-height: 220px;
    }
}

/* Accent sur le focus */
.product-card:focus-within {
    outline: 2.5px solid var(--color-accent, #f97316);
    outline-offset: 2px;
}
/* ... (le reste de ton CSS pro, menu, responsive, etc.) ... */

.product-detail {
    display: flex;
    flex-direction: row;
    gap: 38px;
    margin: 44px 0;
    align-items: flex-start;
}
.product-detail-img {
    width: 320px;
    height: 320px;
    object-fit: cover;
    border-radius: 22px;
    box-shadow: 0 4px 22px var(--color-shadow);
}
.product-detail-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 22px;
}
.back-btn {
    display: inline-block;
    background: var(--color-primary);
    color: #fff;
    padding: 11px 28px;
    border-radius: var(--radius-btn);
    text-decoration: none;
    font-weight: 600;
    transition: background .18s;
}
.back-btn:hover {
    background: var(--color-accent);
}
@media (max-width: 900px) {
    .product-detail {
        flex-direction: column;
        align-items: center;
    }
    .product-detail-img {
        width: 90vw;
        height: 300px;
    }
}