:root {
    /* KALARIFIT Theme Colors */
    --bg-color: #000000;
    --bg-secondary: #0A0A0A;
    --bg-tertiary: #141414;
    --text-primary: #E6E6E6;
    --text-secondary: #A0A0A0;
    --accent-orange: #E60000;
    /* Red */
    --accent-orange-hover: #B30000;
    --border-color: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Arial', sans-serif;
    --font-logo: 'Syncopate', sans-serif;

    /* Transitions */
    --trans-fast: 0.2s ease;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
}

/* Header */
.amz-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 1rem 2rem;
    height: 80px;
}

.amz-logo {
    font-family: var(--font-logo);
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    letter-spacing: 2px;
    margin-right: 2rem;
    transition: var(--trans-fast);
}

.amz-logo .logo-red {
    color: var(--accent-orange);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: inline-block;
}

.amz-logo .logo-white {
    color: #ffffff;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1) 0.1s;
    display: inline-block;
}

.amz-logo:hover .logo-red,
.amz-logo:hover .logo-white {
    transform: translateY(-2px);
}

.amz-search {
    flex-grow: 1;
    display: flex;
    height: 45px;
    border-radius: 0;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.amz-search-select {
    background-color: var(--bg-tertiary);
    border: none;
    border-right: 1px solid var(--border-color);
    padding: 0 15px;
    color: var(--text-secondary);
    font-size: 13px;
    text-transform: uppercase;
    font-family: var(--font-heading);
    letter-spacing: 1px;
    cursor: pointer;
}

.amz-search-input {
    flex-grow: 1;
    border: none;
    padding: 0 15px;
    font-size: 15px;
    background: transparent;
    color: var(--text-primary);
    outline: none;
}

.amz-search-btn {
    background-color: var(--accent-orange);
    border: none;
    width: 55px;
    cursor: pointer;
    color: white;
    font-size: 1.2rem;
    transition: var(--trans-fast);
}

.amz-search-btn:hover {
    background-color: var(--accent-orange-hover);
}

.amz-nav-items {
    display: flex;
    align-items: center;
    margin-left: 2rem;
    gap: 1.5rem;
}

.amz-nav-item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--trans-fast);
}

.amz-nav-item:hover {
    color: var(--accent-orange);
}

.amz-nav-line-1 {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.amz-nav-line-2 {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    font-family: var(--font-heading);
    letter-spacing: 1px;
}

.amz-cart {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 14px;
    gap: 8px;
}

.amz-cart i {
    font-size: 1.5rem;
    color: var(--accent-orange);
}

/* Sub-nav */
.amz-subnav {
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    padding: 0.8rem 2rem;
    font-size: 13px;
    gap: 25px;
    text-transform: uppercase;
    font-family: var(--font-heading);
    letter-spacing: 1px;
}

.amz-subnav a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--trans-fast);
}

.amz-subnav a:hover {
    color: white;
}

/* Layout */
.amz-main {
    display: flex;
    max-width: 1600px;
    margin: 0 auto;
    padding: 3rem 2rem;
    gap: 3rem;
}

.amz-sidebar {
    width: 250px;
    flex-shrink: 0;
}

.amz-sidebar h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 15px;
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: white;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.amz-sidebar ul {
    list-style: none;
}

.amz-sidebar li {
    margin-bottom: 12px;
    font-size: 14px;
}

.amz-sidebar a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--trans-fast);
}

.amz-sidebar a:hover {
    color: var(--accent-orange);
}

/* Product Grid */
.amz-results {
    font-size: 14px;
    margin-bottom: 20px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: var(--font-heading);
}

.amz-products {
    flex-grow: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

/* Product Card */
.amz-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.amz-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(230, 0, 0, 0.05), transparent);
    transform: translateX(-100%);
    transition: 0.6s;
    pointer-events: none;
}

.amz-card:hover {
    border-color: var(--accent-orange);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(230, 0, 0, 0.1);
}

.amz-card:hover::before {
    transform: translateX(100%);
}

.amz-card-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    margin-bottom: 1.5rem;
    filter: grayscale(100%) contrast(1.2);
    transition: var(--trans-fast);
}

.amz-card:hover .amz-card-img {
    filter: grayscale(0%) contrast(1.1);
}

.amz-card-title {
    font-family: var(--font-heading);
    font-size: 18px;
    line-height: 1.4;
    color: white;
    text-decoration: none;
    margin-bottom: 0.8rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: var(--trans-fast);
}

.amz-card-title:hover {
    color: var(--accent-orange);
}

.amz-rating {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.amz-stars {
    color: var(--accent-orange);
    font-size: 14px;
    margin-right: 10px;
}

.amz-reviews {
    color: var(--text-secondary);
    font-size: 13px;
}

.amz-price {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: flex-start;
}

.amz-currency {
    font-size: 16px;
    margin-top: 6px;
    color: var(--accent-orange);
    margin-right: 2px;
}

.amz-shipping {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.amz-prime {
    color: var(--accent-orange);
    font-style: normal;
    font-weight: bold;
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
    display: inline-block;
    border: 1px solid var(--accent-orange);
    padding: 2px 6px;
    margin-bottom: 5px;
}

.amz-btn {
    background: transparent;
    border: 1px solid var(--text-primary);
    color: white;
    padding: 12px 20px;
    font-size: 14px;
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    width: 100%;
    transition: var(--trans-fast);
    position: relative;
    overflow: hidden;
}

.amz-btn:hover {
    background: var(--accent-orange);
    border-color: var(--accent-orange);
}

/* Responsiveness */
@media (max-width: 900px) {
    .amz-search {
        display: none;
    }

    .amz-main {
        flex-direction: column;
    }

    .amz-sidebar {
        width: 100%;
    }
}