/* Ultra Premium Design System */
:root {
    --premium-black: #0f0f0f;
    --premium-dark-gray: #333333;
    --premium-gray: #888888;
    --premium-light-gray: #f5f5f5;
    --premium-border: #e6e6e6;
    --premium-white: #ffffff;
    --premium-gold: #c5a059;
    --premium-gold-hover: #b08d4a;
    --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.3s ease;
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.04);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.08);
}

body {
    background-color: var(--premium-white);
    color: var(--premium-black);
    font-family: 'Inter', 'Roboto', sans-serif;
    -webkit-font-smoothing: antialiased;
}

/* === GRID SYSTEM === */
.premium-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px 30px;
    margin-bottom: 60px;
}

@media (max-width: 1199px) {
    .premium-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 991px) {
    .premium-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px 20px;
    }
}

@media (max-width: 575px) {
    .premium-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* === PRODUCT CARD === */
.premium-card {
    position: relative;
    background: var(--premium-white);
    border-radius: 0;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    group: hover;
}

.premium-card:hover {
    box-shadow: var(--shadow-hover);
    z-index: 2;
}

.premium-card-img-wrapper {
    position: relative;
    width: 100%;
    padding-top: 100%; /* 1:1 Aspect Ratio */
    background-color: #fcfcfc;
    overflow: hidden;
    margin-bottom: 20px;
}

.premium-card-img-wrapper img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    height: 90%;
    object-fit: contain;
    transition: var(--transition-smooth);
}

.premium-card .secondary-img {
    opacity: 0;
    z-index: 2;
}

.premium-card:hover .primary-img {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.05);
}

.premium-card:hover .secondary-img {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.05);
}

.fav-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    z-index: 10;
    background: transparent;
    border: none;
    color: var(--premium-gray);
    font-size: 20px;
    transition: var(--transition-fast);
    cursor: pointer;
    opacity: 0;
    transform: translateY(-5px);
}

.premium-card:hover .fav-btn {
    opacity: 1;
    transform: translateY(0);
}

.fav-btn:hover {
    color: var(--premium-black);
    transform: scale(1.1) !important;
}

.card-actions {
    position: absolute;
    bottom: 20px;
    left: 0;
    width: 100%;
    padding: 0 20px;
    display: flex;
    gap: 10px;
    opacity: 0;
    transform: translateY(15px);
    transition: var(--transition-smooth);
    z-index: 10;
}

.premium-card:hover .card-actions {
    opacity: 1;
    transform: translateY(0);
}

/* === TYPOGRAPHY (Cards) === */
.premium-card-info {
    padding: 0 10px 20px;
    text-align: center;
}

.premium-card-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--premium-black);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.premium-card-title a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

.premium-card-title a:hover {
    color: var(--premium-gold);
}

.premium-card-desc {
    font-size: 12px;
    color: var(--premium-gray);
    margin-bottom: 12px;
}

.premium-card-price-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.premium-card-price {
    font-size: 16px;
    font-weight: 600;
    color: var(--premium-black);
}

.premium-card-old-price {
    font-size: 13px;
    color: var(--premium-gray);
    text-decoration: line-through;
}

/* === BUTTONS === */
.btn-premium-primary {
    background-color: var(--premium-black);
    color: var(--premium-white);
    border: 1px solid var(--premium-black);
    padding: 12px 24px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition-fast);
    flex: 1;
    text-align: center;
    text-decoration: none;
}

.btn-premium-primary:hover {
    background-color: var(--premium-gold);
    border-color: var(--premium-gold);
    color: var(--premium-white);
}

.btn-premium-secondary {
    background-color: var(--premium-white);
    color: var(--premium-black);
    border: 1px solid var(--premium-border);
    padding: 12px 24px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition-fast);
    flex: 1;
    text-align: center;
    text-decoration: none;
}

.btn-premium-secondary:hover {
    border-color: var(--premium-black);
    background-color: var(--premium-black);
    color: var(--premium-white);
}

/* === PRODUCT DETAILS PAGE === */
.pdp-wrapper {
    margin: 60px auto 100px;
    padding: 0 15px;
    max-width: 1400px;
}

.pdp-gallery-col {
    position: sticky;
    top: 100px;
}

/* Gallery */
.pdp-main-image {
    width: 100%;
    background: #f9f9f9;
    position: relative;
    overflow: hidden;
    cursor: zoom-in;
    margin-bottom: 15px;
}

.pdp-main-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.pdp-thumbnails {
    display: flex;
    gap: 15px;
    overflow-x: auto;
    padding-bottom: 5px;
}

.pdp-thumbnails::-webkit-scrollbar {
    height: 4px;
}
.pdp-thumbnails::-webkit-scrollbar-thumb {
    background: var(--premium-border);
}

.pdp-thumb {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    background: #f9f9f9;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition-fast);
}

.pdp-thumb.active {
    border-color: var(--premium-black);
}

.pdp-thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 5px;
}

/* Info Column */
.pdp-info-col {
    padding-left: 50px;
}

@media (max-width: 991px) {
    .pdp-info-col {
        padding-left: 15px;
        margin-top: 40px;
    }
}

.pdp-sku {
    font-size: 12px;
    color: var(--premium-gray);
    letter-spacing: 1px;
    margin-bottom: 10px;
    display: block;
}

.pdp-title {
    font-size: 32px;
    font-weight: 300;
    color: var(--premium-black);
    margin-bottom: 20px;
    line-height: 1.3;
}

.pdp-price-area {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--premium-border);
}

.pdp-current-price {
    font-size: 28px;
    font-weight: 600;
    color: var(--premium-black);
}

.pdp-old-price {
    font-size: 18px;
    color: var(--premium-gray);
    text-decoration: line-through;
    margin-left: 15px;
}

.pdp-installment {
    display: block;
    font-size: 13px;
    color: var(--premium-gold);
    margin-top: 5px;
}

/* Variations */
.variation-group {
    margin-bottom: 30px;
}

.variation-label {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    font-weight: 600;
    color: var(--premium-black);
    text-transform: uppercase;
    margin-bottom: 15px;
    letter-spacing: 0.5px;
}

.variation-label span {
    font-weight: 400;
    color: var(--premium-gray);
    text-transform: none;
}

/* Swatches */
.swatch-list {
    display: flex;
    gap: 15px;
}

.swatch-color {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    position: relative;
    border: 1px solid var(--premium-border);
    transition: var(--transition-fast);
}

.swatch-color.active {
    border-color: var(--premium-black);
}

.swatch-color.active::after {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 1px solid var(--premium-black);
    border-radius: 50%;
}

.swatch-white-gold { background: #e6e8e2; }
.swatch-yellow-gold { background: #e4cc95; }
.swatch-rose-gold { background: #dfb2a9; }

/* Pills */
.pill-list {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.pill-item {
    border: 1px solid var(--premium-border);
    padding: 10px 20px;
    font-size: 13px;
    color: var(--premium-black);
    cursor: pointer;
    transition: var(--transition-fast);
    user-select: none;
}

.pill-item:hover {
    border-color: var(--premium-gray);
}

.pill-item.active {
    border-color: var(--premium-black);
    background: var(--premium-black);
    color: var(--premium-white);
}

/* Select */
.premium-select {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--premium-border);
    font-size: 14px;
    color: var(--premium-black);
    appearance: none;
    background: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e") no-repeat right 15px center;
    background-size: 15px;
    outline: none;
    cursor: pointer;
}

.premium-select:focus {
    border-color: var(--premium-black);
}

/* Actions */
.pdp-actions {
    display: flex;
    gap: 15px;
    margin-top: 40px;
}

.pdp-actions .btn-premium-primary, 
.pdp-actions .btn-premium-secondary {
    padding: 18px 24px;
    font-size: 14px;
}

/* Sticky Mobile Bar */
@media (max-width: 767px) {
    .pdp-actions {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: var(--premium-white);
        padding: 15px;
        margin: 0;
        box-shadow: 0 -5px 20px rgba(0,0,0,0.05);
        z-index: 1000;
    }
    .pdp-wrapper {
        margin-bottom: 120px;
    }
}

/* Feature List */
.pdp-features {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--premium-border);
    list-style: none;
    padding-left: 0;
}

.pdp-features li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 13px;
    color: var(--premium-dark-gray);
}

.pdp-features i {
    font-size: 18px;
    color: var(--premium-gray);
}

/* --- Slider Buttons & Video --- */
.pdp-main-image {
    position: relative;
}
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.8);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition-fast);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}
.slider-btn:hover {
    background: var(--premium-black);
    color: var(--premium-white);
}
.prev-btn { left: 10px; }
.next-btn { right: 10px; }

.video-thumb {
    position: relative;
}
.video-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 24px;
    z-index: 2;
    pointer-events: none;
}