/* Navigation styles */
:root {
    --brand: #ef4444;
    --brand-600: #dc2626;
    --ink: #0f172a;
    --cream: #fff7ed;
}

/* Header sticky */
header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid #e5e7eb;
}

/* Container */
header > div {
    max-width: 80rem;
    margin: 0 auto;
    padding: 0 1rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo et titre */
header a[href*="home"] {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    transition: opacity 0.2s;
}

header a[href*="home"]:hover {
    opacity: 0.8;
}

header a[href*="home"] img {
    height: 3rem;
    width: auto;
    object-fit: contain;
}

header a[href*="home"] span {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--ink);
}

/* Navigation buttons container */
header > div > div:last-child {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Buttons */
.btn {
    transition: transform 0.06s ease;
}

.btn:active {
    transform: translateY(1px);
}

/* User menu button */
#user-menu-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-radius: 0.75rem;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s;
}

#user-menu-button:hover {
    background-color: #f3f4f6;
}

/* Dropdown menu */
#user-menu-dropdown {
    position: absolute;
    right: 0;
    margin-top: 0.5rem;
    width: 14rem;
    background: white;
    border-radius: 0.75rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    border: 1px solid #e5e7eb;
    padding: 0.5rem 0;
    z-index: 50;
}

#user-menu-dropdown.hidden {
    display: none;
}

/* Cart button */
#open-cart {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 0.75rem;
    background: var(--brand);
    color: white;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 4px 6px rgba(239, 68, 68, 0.15);
    transition: background-color 0.2s, transform 0.06s;
}

#open-cart:hover {
    background: var(--brand-600);
}

#open-cart #cart-count {
    margin-left: 0.25rem;
    display: inline-block;
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.9);
    color: var(--brand-600);
    border-radius: 9999px;
    font-weight: 700;
}

/* Bump animation for cart */
#open-cart.bump {
    animation: bump 0.3s ease;
}

@keyframes bump {
    0% { transform: scale(1); }
    50% { transform: scale(1.06); }
    100% { transform: scale(1); }
}

/* Categories tabs */
#cat-tabs {
    position: sticky;
    top: 64px;
    z-index: 30;
    background: #fff;
    border-bottom: 1px solid #e5e7eb;
}

#cat-tabs .rail {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 0.5rem 0.75rem;
    scrollbar-width: none;
}

#cat-tabs .rail::-webkit-scrollbar {
    display: none;
}

#cat-tabs .chip {
    white-space: nowrap;
    padding: 0.5rem 0.8rem;
    border: 1px solid #e5e7eb;
    border-radius: 999px;
    font-size: 0.9rem;
    background: #fff;
    cursor: pointer;
    transition: all 0.2s;
}

#cat-tabs .chip:hover {
    background: #f9fafb;
}

#cat-tabs .chip.active {
    background: var(--cream);
    border-color: var(--brand);
    color: var(--brand-600);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 640px) {
    header > div {
        padding: 0 0.75rem;
    }
    
    header a[href*="home"] span,
    #user-menu-button span.hidden.sm\:inline,
    .hidden.sm\:inline {
        display: none;
    }
}

@media (min-width: 640px) {
    header > div {
        padding: 0 1.5rem;
    }
    
    .hidden.sm\:inline {
        display: inline;
    }
}

@media (min-width: 1024px) {
    header > div {
        padding: 0 2rem;
    }
}