/* ============================================================
   product.css – Trang chi tiết sản phẩm SUNILIES
   src/main/resources/static/css/product.css
   ============================================================ */

:root {
    --mainColor:   #c8986a;
    --darkColor:   #3d2e1c;
    --textColor:   #231f20;
    --borderColor: #e8e4de;
    --bgLight:     #faf2e6;
    --bgWarm:      #faf7f2;
    --muted:       #7a6a57;
    --fontDisplay: 'Playfair Display', 'Cormorant', serif;
    --fontBody:    'Lato', sans-serif;
    --transition:  0.3s ease;
    --shadow-soft: 0 4px 24px rgba(61,46,28,.08);
}

/* ── BREADCRUMB ──────────────────────────────────────────── */
.pd-breadcrumb {
    padding: 16px 0;
    border-bottom: 1px solid var(--borderColor);
    background: #fff;
}
.pd-breadcrumb__inner {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    letter-spacing: .5px;
    color: #aaa;
    flex-wrap: wrap;
}
.pd-breadcrumb__inner a {
    color: #aaa;
    transition: color var(--transition);
}
.pd-breadcrumb__inner a:hover { color: var(--mainColor); }
.pd-breadcrumb__sep {
    color: #ddd;
    font-size: 10px;
}
.pd-breadcrumb__current {
    color: var(--muted);
    font-weight: 600;
}

/* ── MAIN LAYOUT ─────────────────────────────────────────── */
.pd-section {
    padding: 56px 0 80px;
    background: #fff;
}
.pd-grid {
    display: grid;
    grid-template-columns: 55% 1fr;
    gap: 64px;
    align-items: start;
}

/* ════════════════════════════════════════════════════════════
   GALLERY
   ════════════════════════════════════════════════════════════ */
.pd-gallery {
    position: sticky;
    top: 90px;
}

/* Main image */
.pd-gallery__main {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 3/4;
    background: var(--bgLight);
    cursor: zoom-in;
    margin-bottom: 12px;
    box-shadow: var(--shadow-soft);
}
.pd-gallery__main img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .6s cubic-bezier(.25,.46,.45,.94), opacity .3s ease;
}
.pd-gallery__main:hover img {
    transform: scale(1.06);
}
.pd-gallery__main.switching img {
    opacity: 0;
    transform: scale(1.02);
}

/* Zoom hint */
.pd-gallery__zoom-hint {
    position: absolute;
    bottom: 16px; right: 16px;
    background: rgba(255,255,255,.85);
    backdrop-filter: blur(4px);
    border-radius: 50px;
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--darkColor);
    display: flex;
    align-items: center;
    gap: 6px;
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}
.pd-gallery__main:hover .pd-gallery__zoom-hint { opacity: 1; }

/* Thumbnails */
.pd-gallery__thumbs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.pd-gallery__thumb {
    width: 74px; height: 92px;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    background: var(--bgLight);
    transition: border-color .2s, transform .2s, box-shadow .2s;
    flex-shrink: 0;
}
.pd-gallery__thumb:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(200,152,106,.25);
}
.pd-gallery__thumb.is-active {
    border-color: var(--mainColor);
    box-shadow: 0 0 0 3px rgba(200,152,106,.2);
}
.pd-gallery__thumb img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .3s;
}
.pd-gallery__thumb:hover img { transform: scale(1.05); }

/* Lightbox */
.pd-lightbox {
    position: fixed; inset: 0;
    background: rgba(0,0,0,.92);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s, visibility .3s;
}
.pd-lightbox.is-open {
    opacity: 1;
    visibility: visible;
}
.pd-lightbox__img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    transform: scale(.92);
    transition: transform .35s cubic-bezier(.34,1.56,.64,1);
}
.pd-lightbox.is-open .pd-lightbox__img { transform: scale(1); }
.pd-lightbox__close {
    position: absolute;
    top: 24px; right: 32px;
    color: #fff; font-size: 36px;
    cursor: pointer; line-height: 1;
    opacity: .7;
    transition: opacity .2s, transform .2s;
    background: none; border: none;
}
.pd-lightbox__close:hover { opacity: 1; transform: rotate(90deg); }

/* ════════════════════════════════════════════════════════════
   PRODUCT INFO
   ════════════════════════════════════════════════════════════ */
.pd-info {
    padding-top: 4px;
}

/* Category tag */
.pd-info__category {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--mainColor);
    margin-bottom: 14px;
    position: relative;
    padding-bottom: 6px;
}
.pd-info__category::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 24px; height: 1.5px;
    background: var(--mainColor);
}

/* Title */
.pd-info__title {
    font-family: var(--fontDisplay);
    font-size: clamp(24px, 3vw, 38px);
    font-weight: 400;
    line-height: 1.2;
    color: var(--darkColor);
    margin-bottom: 16px;
    letter-spacing: -.3px;
}

/* Rating */
.pd-info__rating {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
}
.pd-stars {
    display: flex;
    gap: 2px;
}
.pd-star {
    width: 14px; height: 14px;
    fill: var(--mainColor);
}
.pd-star.empty { fill: #e0d4c3; }
.pd-rating__count {
    font-size: 12px;
    color: var(--muted);
    border-left: 1px solid var(--borderColor);
    padding-left: 8px;
}

/* Price */
.pd-info__price {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 6px;
    flex-wrap: wrap;
}
.pd-price--sale {
    font-size: 28px;
    font-weight: 700;
    color: #c0392b;
    font-family: var(--fontDisplay);
}
.pd-price--regular {
    font-size: 28px;
    font-weight: 700;
    color: var(--mainColor);
    font-family: var(--fontDisplay);
}
.pd-price--compare {
    font-size: 17px;
    color: #b0a090;
    text-decoration: line-through;
    font-weight: 400;
}
.pd-price__save-pill {
    background: #fff0ee;
    color: #c0392b;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 50px;
    letter-spacing: .5px;
}

/* Badges */
.pd-info__badges {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.pd-badge {
    font-size: 11px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 4px;
    letter-spacing: .5px;
    text-transform: uppercase;
}
.pd-badge--sale   { background: #fde8e6; color: #c0392b; }
.pd-badge--new    { background: var(--bgLight); color: var(--darkColor); border: 1px solid var(--mainColor); }
.pd-badge--hot    { background: #fff8e1; color: #e67e22; }

/* Description */
.pd-info__desc {
    font-size: 14px;
    line-height: 1.9;
    color: var(--muted);
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--borderColor);
}

/* ── VARIANTS ────────────────────────────────────────────── */
.pd-variant-group {
    margin-bottom: 22px;
}
.pd-variant-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--darkColor);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.pd-variant-label__selected {
    font-weight: 400;
    color: var(--mainColor);
    letter-spacing: 0;
    font-size: 13px;
    text-transform: none;
}
.pd-size-guide {
    font-size: 11px;
    color: var(--mainColor);
    text-decoration: underline;
    cursor: pointer;
    margin-left: auto;
    font-weight: 400;
    letter-spacing: 0;
    text-transform: none;
}

.pd-options {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.pd-option-btn {
    min-width: 46px;
    height: 46px;
    padding: 0 14px;
    border: 1.5px solid var(--borderColor);
    background: #fff;
    font-size: 13px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    color: var(--darkColor);
    transition: all .22s;
    letter-spacing: .3px;
}
.pd-option-btn:hover {
    border-color: var(--mainColor);
    color: var(--mainColor);
}
.pd-option-btn.is-active {
    border-color: var(--mainColor);
    background: var(--mainColor);
    color: #fff;
    box-shadow: 0 4px 14px rgba(200,152,106,.35);
}
.pd-option-btn:active { transform: scale(.95); }

/* ── QUANTITY ────────────────────────────────────────────── */
.pd-qty-row {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}
.pd-qty-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--darkColor);
    white-space: nowrap;
}
.pd-qty-control {
    display: flex;
    align-items: center;
    border: 1.5px solid var(--borderColor);
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
}
.pd-qty-btn {
    width: 44px; height: 46px;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--muted);
    transition: background .2s, color .2s;
    line-height: 1;
}
.pd-qty-btn:hover {
    background: var(--bgLight);
    color: var(--darkColor);
}
.pd-qty-input {
    width: 56px; height: 46px;
    border: none;
    border-left: 1.5px solid var(--borderColor);
    border-right: 1.5px solid var(--borderColor);
    text-align: center;
    font-size: 15px;
    font-weight: 700;
    color: var(--darkColor);
    outline: none;
    font-family: var(--fontBody);
    -moz-appearance: textfield;
}
.pd-qty-input::-webkit-inner-spin-button,
.pd-qty-input::-webkit-outer-spin-button { -webkit-appearance: none; }

/* Stock */
.pd-stock {
    font-size: 12px;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 22px;
}
.pd-stock__dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.pd-stock__dot--in   { background: #27ae60; box-shadow: 0 0 0 3px rgba(39,174,96,.15); }
.pd-stock__dot--low  { background: #e67e22; box-shadow: 0 0 0 3px rgba(230,126,34,.15); }
.pd-stock__dot--out  { background: #e74c3c; box-shadow: 0 0 0 3px rgba(231,76,60,.15); }

/* ── CTA BUTTONS ─────────────────────────────────────────── */
.pd-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
}
.pd-btn-cart {
    flex: 1;
    height: 54px;
    background: var(--darkColor);
    color: var(--bgLight);
    border: none;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-radius: 10px;
    cursor: pointer;
    font-family: var(--fontBody);
    transition: all .3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
}
.pd-btn-cart::before {
    content: '';
    position: absolute; inset: 0;
    background: var(--mainColor);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .4s cubic-bezier(.25,.46,.45,.94);
}
.pd-btn-cart:hover::before { transform: scaleX(1); }
.pd-btn-cart span { position: relative; z-index: 1; }
.pd-btn-cart:hover { box-shadow: 0 6px 24px rgba(61,46,28,.3); }
.pd-btn-cart.is-loading .pd-btn-cart__text { opacity: 0; }
.pd-btn-cart.is-success {
    background: #27ae60;
}

.pd-btn-buy {
    flex: 1;
    height: 54px;
    background: transparent;
    border: 1.5px solid var(--darkColor);
    color: var(--darkColor);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-radius: 10px;
    cursor: pointer;
    font-family: var(--fontBody);
    transition: all .3s;
}
.pd-btn-buy:hover {
    background: var(--darkColor);
    color: var(--bgLight);
    box-shadow: 0 6px 24px rgba(61,46,28,.2);
}

.pd-btn-wish {
    width: 54px; height: 54px;
    background: #fff;
    border: 1.5px solid var(--borderColor);
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all .25s;
    color: var(--muted);
}
.pd-btn-wish:hover {
    border-color: #e74c3c;
    color: #e74c3c;
    background: #fff0ee;
}
.pd-btn-wish.is-wished {
    border-color: #e74c3c;
    background: #e74c3c;
    color: #fff;
}
.pd-btn-wish svg { width: 20px; height: 20px; transition: transform .3s; }
.pd-btn-wish:hover svg { transform: scale(1.15); }
.pd-btn-wish.is-wished svg { fill: currentColor; }

/* ── TRUST BADGES ────────────────────────────────────────── */
.pd-trust {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 18px;
    background: var(--bgWarm);
    border-radius: 12px;
    margin-bottom: 22px;
    border: 1px solid var(--borderColor);
}
.pd-trust__item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--muted);
    line-height: 1.4;
}
.pd-trust__icon {
    width: 32px; height: 32px;
    background: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid var(--borderColor);
    font-size: 14px;
}
.pd-trust__text strong {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .5px;
    color: var(--darkColor);
    text-transform: uppercase;
}

/* ── META ────────────────────────────────────────────────── */
.pd-meta {
    font-size: 12px;
    color: #aaa;
    border-top: 1px solid var(--borderColor);
    padding-top: 16px;
    line-height: 1.9;
}
.pd-meta a { color: var(--mainColor); }
.pd-meta a:hover { text-decoration: underline; }
.pd-meta strong { color: var(--muted); }

/* Share */
.pd-share {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 14px;
    font-size: 12px;
    color: #aaa;
    letter-spacing: .5px;
    text-transform: uppercase;
}
.pd-share__btn {
    width: 34px; height: 34px;
    border-radius: 50%;
    border: 1px solid var(--borderColor);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--muted);
    transition: all .2s;
    background: #fff;
}
.pd-share__btn:hover {
    border-color: var(--mainColor);
    color: var(--mainColor);
    transform: translateY(-2px);
}

/* ════════════════════════════════════════════════════════════
   TABS
   ════════════════════════════════════════════════════════════ */
.pd-tabs-section {
    padding: 64px 0;
    background: var(--bgWarm);
    border-top: 1px solid var(--borderColor);
    border-bottom: 1px solid var(--borderColor);
}
.pd-tabs__nav {
    display: flex;
    border-bottom: 1.5px solid var(--borderColor);
    margin-bottom: 36px;
    gap: 0;
}
.pd-tab-btn {
    padding: 14px 32px;
    background: none;
    border: none;
    border-bottom: 2.5px solid transparent;
    margin-bottom: -1.5px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #aaa;
    cursor: pointer;
    transition: color .25s, border-color .25s;
    font-family: var(--fontBody);
}
.pd-tab-btn:hover { color: var(--muted); }
.pd-tab-btn.is-active {
    color: var(--darkColor);
    border-bottom-color: var(--mainColor);
}
.pd-tab-panel {
    display: none;
    animation: tabFadeIn .35s ease;
}
.pd-tab-panel.is-active { display: block; }

@keyframes tabFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.pd-tab-content {
    max-width: 720px;
    font-size: 14px;
    line-height: 1.9;
    color: var(--muted);
}
.pd-tab-content h4 {
    font-family: var(--fontDisplay);
    font-size: 18px;
    color: var(--darkColor);
    margin-bottom: 12px;
    font-weight: 500;
}
.pd-tab-content ul {
    list-style: none;
    padding: 0;
    margin-bottom: 16px;
}
.pd-tab-content ul li {
    padding: 8px 0;
    border-bottom: 1px solid var(--borderColor);
    display: flex;
    align-items: center;
    gap: 10px;
}
.pd-tab-content ul li::before {
    content: '';
    width: 4px; height: 4px;
    border-radius: 50%;
    background: var(--mainColor);
    flex-shrink: 0;
}

.pd-care-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 20px;
}
.pd-care-item {
    text-align: center;
    padding: 20px 12px;
    background: #fff;
    border-radius: 10px;
    border: 1px solid var(--borderColor);
}
.pd-care-item__icon { font-size: 24px; margin-bottom: 8px; }
.pd-care-item__text { font-size: 11px; color: var(--muted); line-height: 1.5; }

/* ════════════════════════════════════════════════════════════
   RELATED PRODUCTS
   ════════════════════════════════════════════════════════════ */
.pd-related {
    padding: 70px 0 80px;
    background: #fff;
}
.pd-related__header {
    text-align: center;
    margin-bottom: 40px;
}
.pd-related__title {
    font-family: var(--fontDisplay);
    font-size: 30px;
    font-weight: 400;
    color: var(--darkColor);
    margin-bottom: 8px;
}
.pd-related__sub {
    font-size: 12px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--mainColor);
}

/* Toast notification */
.pd-toast {
    position: fixed;
    bottom: 32px; left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: var(--darkColor);
    color: var(--bgLight);
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .5px;
    z-index: 9998;
    transition: transform .4s cubic-bezier(.34,1.56,.64,1), opacity .3s;
    opacity: 0;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 8px 30px rgba(0,0,0,.25);
}
.pd-toast.is-visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 991px) {
    .pd-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
    .pd-gallery { position: static; }
}
@media (max-width: 767px) {
    .pd-section { padding: 32px 0 48px; }
    .pd-grid { grid-template-columns: 1fr; gap: 28px; }
    .pd-gallery { position: static; }
    .pd-info__title { font-size: 26px; }
    .pd-trust { grid-template-columns: 1fr 1fr; }
    .pd-actions { flex-wrap: wrap; }
    .pd-btn-cart, .pd-btn-buy { flex: 1 1 calc(50% - 5px); }
    .pd-tab-btn { padding: 12px 16px; font-size: 11px; }
    .pd-care-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .pd-btn-cart, .pd-btn-buy { flex: 1 1 100%; }
    .pd-btn-wish { width: 100%; }
    .pd-trust { grid-template-columns: 1fr; }
}