/* ═══════════════════════════════════════════════════
   فرشواره — single.css | صفحه محصول
   ═══════════════════════════════════════════════════ */

.fv-single-page { background: var(--cream); }

/* ── layout اصلی ── */
.fv-single-body { padding: 40px 0 64px; }
.fv-single-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
    margin-bottom: 48px;
}

/* ── تصویر ── */
.fv-single-image-wrap {
    position: relative;
    border-radius: var(--r-xl);
    overflow: hidden;
    background: var(--champagne);
    box-shadow: var(--sh-lg);
    aspect-ratio: 4/5;
}
.fv-single-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.fv-single-image-placeholder {
    width: 100%;
    height: 100%;
    display: grid;
    place-items: center;
    font-size: 80px;
    color: var(--line);
}
.fv-single-verified {
    position: absolute;
    top: 14px;
    right: 14px;
    background: rgba(19,122,136,.9);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 5px 11px;
    border-radius: 100px;
    display: flex;
    align-items: center;
    gap: 5px;
    backdrop-filter: blur(4px);
}
.fv-single-code {
    position: absolute;
    bottom: 14px;
    left: 14px;
    background: rgba(30,13,36,.75);
    color: var(--gold-lite);
    font-size: 10.5px;
    font-weight: 700;
    padding: 5px 11px;
    border-radius: 100px;
    letter-spacing: .3px;
    backdrop-filter: blur(4px);
    direction: ltr;
}

/* ── سوییچر رنگ (TODO #4) ── */
.fv-color-switcher {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
}
.fv-color-switcher__item {
    display: flex;
    align-items: center;
    gap: 7px;
    background: var(--paper);
    border: 1.5px solid var(--line);
    border-radius: 100px;
    padding: 4px 12px 4px 4px;
    cursor: pointer;
    transition: border-color .15s, background .15s;
    font-family: inherit;
}
.fv-color-switcher__item:hover {
    border-color: var(--teal);
}
.fv-color-switcher__item--active {
    border-color: var(--plum-700);
    background: var(--champagne);
}
.fv-color-switcher__item img {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
}
.fv-color-switcher__name {
    font-size: 12px;
    font-weight: 700;
    color: var(--ink-mid);
}

/* ── سوییچر سایز (چندسایزی با قیمت جدا) ── */
.fv-size-switcher {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 10px 0 4px;
}
.fv-size-switcher__item {
    background: var(--paper);
    border: 1.5px solid var(--line);
    border-radius: 8px;
    padding: 7px 14px;
    cursor: pointer;
    font-family: inherit;
    font-size: 13px;
    font-weight: 700;
    color: var(--ink-mid);
    transition: border-color .15s, background .15s;
}
.fv-size-switcher__item small {
    font-weight: 400;
    opacity: .7;
    margin-right: 2px;
}
.fv-size-switcher__item:hover:not(:disabled) {
    border-color: var(--teal);
}
.fv-size-switcher__item--active {
    border-color: var(--plum-700);
    background: var(--champagne);
    color: var(--plum-700);
}
.fv-size-switcher__item:disabled {
    opacity: .4;
    cursor: not-allowed;
    text-decoration: line-through;
}

/* ── گالری تکمیلی تصاویر هر رنگ (TODO #6) ── */
.fv-image-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}
.fv-image-gallery__item {
    width: 52px;
    height: 52px;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid var(--line);
    padding: 0;
    cursor: pointer;
    background: var(--paper);
    transition: border-color .15s;
}
.fv-image-gallery__item:hover {
    border-color: var(--teal);
}
.fv-image-gallery__item--active {
    border-color: var(--plum-700);
}
.fv-image-gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ── اطلاعات ── */
.fv-single-type {
    display: inline-block;
    font-size: 12px;
    font-weight: 800;
    color: var(--teal);
    letter-spacing: .4px;
    margin-bottom: 10px;
}
.fv-single-title {
    font-size: clamp(20px, 2.8vw, 28px);
    font-weight: 800;
    color: var(--ink);
    line-height: 1.35;
    letter-spacing: -.5px;
    margin-bottom: 14px;
}

/* موجودی */
.fv-stock {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 100px;
    margin-bottom: 16px;
}
.fv-stock::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}
.fv-stock--yes      { background: rgba(16,185,129,.1); color: #059669; }
.fv-stock--yes::before { background: #10b981; }
.fv-stock--limited  { background: rgba(245,158,11,.1); color: #d97706; }
.fv-stock--limited::before { background: #f59e0b; }
.fv-stock--no       { background: rgba(239,68,68,.08); color: #dc2626; }
.fv-stock--no::before { background: #ef4444; }
.fv-stock--order    { background: rgba(99,102,241,.1); color: #4f46e5; }
.fv-stock--order::before { background: #818cf8; }

/* قیمت */
.fv-single-price-wrap { margin-bottom: 20px; }
.fv-single-price-unit-label {
    display: block;
    font-size: 12.5px;
    font-weight: 700;
    color: var(--ink-soft);
    margin-bottom: 3px;
}
.fv-single-price {
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 800;
    color: var(--garnet);
}
.fv-single-price::after { content: ' تومان'; font-size: 14px; color: var(--ink-soft); font-weight: 600; }
.fv-single-price--ask { color: var(--teal); }
.fv-single-price--ask::after { content: ''; }

/* فروشنده */
.fv-single-seller {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--champagne);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    margin-bottom: 22px;
    transition: border-color .2s;
}
.fv-single-seller:hover { border-color: var(--teal); }
.fv-single-seller__logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: conic-gradient(from 45deg, var(--plum-700), var(--teal), var(--gold), var(--plum-700));
    overflow: hidden;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    flex-shrink: 0;
}
.fv-single-seller__logo img { width: 100%; height: 100%; object-fit: cover; }
.fv-single-seller strong { display: block; font-size: 14px; font-weight: 700; color: var(--ink); }
.fv-single-seller small  { display: block; font-size: 12px; color: var(--ink-soft); margin-top: 2px; }
.fv-single-seller__badge {
    margin-right: auto;
    font-size: 11px;
    font-weight: 700;
    color: var(--teal);
    background: var(--teal-pale);
    padding: 4px 10px;
    border-radius: 100px;
    white-space: nowrap;
}

/* مشخصات */
.fv-single-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    overflow: hidden;
    margin-bottom: 22px;
}
.fv-single-spec {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 11px 14px;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
    transition: background .1s;
}
.fv-single-spec:nth-child(even) { background: var(--champagne); }
.fv-single-spec:hover { background: var(--teal-pale); }
.fv-single-spec__label {
    font-size: 12px;
    font-weight: 700;
    color: var(--ink-soft);
}
.fv-single-spec__val {
    font-size: 13px;
    font-weight: 700;
    color: var(--ink);
    text-align: left;
}

/* دکمه‌های اقدام */
.fv-single-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 22px;
}

/* توضیح */
.fv-single-desc {
    background: var(--champagne);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    padding: 16px 18px;
    font-size: 14px;
    line-height: 1.85;
    color: var(--ink-mid);
}

/* محتوای کامل */
.fv-single-content {
    max-width: 820px;
    margin: 0 auto 48px;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    padding: 28px 32px;
    box-shadow: var(--sh-sm);
}

/* ── محصولات مشابه ── */
.fv-similar {
    padding: 44px 0 56px;
    background: var(--champagne);
    border-top: 1px solid var(--line);
}

/* اسکرول افقی روان */
.fv-similar-scroll-wrap {
    position: relative;
}
.fv-similar-scroll-wrap::before,
.fv-similar-scroll-wrap::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 40px;
    z-index: 2;
    pointer-events: none;
}
.fv-similar-scroll-wrap::before {
    right: 0;
    background: linear-gradient(to left, var(--champagne), transparent);
}
.fv-similar-scroll-wrap::after {
    left: 0;
    background: linear-gradient(to right, var(--champagne), transparent);
}

.fv-similar-track {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 8px;
    padding-inline: 4px;
}
.fv-similar-track::-webkit-scrollbar { display: none; }

/* کارت مشابه */
.fv-sim-card {
    flex: 0 0 200px;
    scroll-snap-align: start;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    overflow: hidden;
    transition: box-shadow .2s, transform .2s, border-color .2s;
    display: flex;
    flex-direction: column;
    box-shadow: var(--sh-sm);
}
.fv-sim-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--sh-lg);
    border-color: var(--teal);
}
.fv-sim-card__img-wrap {
    position: relative;
    aspect-ratio: 3/4;
    background: var(--cream);
    overflow: hidden;
    flex-shrink: 0;
}
.fv-sim-card__img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .35s ease;
}
.fv-sim-card:hover .fv-sim-card__img-wrap img { transform: scale(1.06); }
.fv-sim-card__placeholder {
    width: 100%;
    height: 100%;
    display: grid;
    place-items: center;
    font-size: 48px;
    color: var(--line);
}
.fv-sim-card__verified {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(19,122,136,.85);
    color: #fff;
    font-size: 9px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 100px;
    backdrop-filter: blur(4px);
}
.fv-sim-card__body {
    padding: 12px 14px 14px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    flex: 1;
}
.fv-sim-card__type {
    font-size: 10px;
    font-weight: 800;
    color: var(--teal);
    letter-spacing: .3px;
}
.fv-sim-card__title {
    font-size: 13px;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.fv-sim-card__views {
    font-size: 10.5px;
    color: var(--ink-soft);
    margin-top: auto;
}
.fv-sim-card__price {
    font-size: 14px;
    font-weight: 800;
    color: var(--garnet);
    margin-top: 4px;
}
.fv-sim-card__price small {
    font-size: 10.5px;
    font-weight: 600;
    color: var(--ink-soft);
    margin-right: 3px;
}
.fv-sim-card__price--ask { color: var(--teal); }

/* دکمه‌های ناوبری اسکرول */
.fv-similar-nav {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 20px;
}
.fv-similar-nav__btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1.5px solid var(--line);
    background: var(--paper);
    color: var(--ink-mid);
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: background .15s, border-color .15s, color .15s;
}
.fv-similar-nav__btn:hover {
    background: var(--plum-700);
    border-color: var(--plum-700);
    color: #fff;
}

/* ── Breadcrumb بهبودیافته ── */
.fv-breadcrumb {
    background: var(--champagne);
    border-bottom: 1px solid var(--line);
    padding: 9px 0;
}
.fv-breadcrumb__list {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12.5px;
    color: var(--ink-soft);
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
    white-space: nowrap;
    padding-bottom: 1px;
}
.fv-breadcrumb__list::-webkit-scrollbar { display: none; }
.fv-breadcrumb__list li { flex-shrink: 0; }
.fv-breadcrumb__list [aria-current="page"] {
    color: var(--ink);
    font-weight: 700;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: inline-block;
    vertical-align: middle;
}
.fv-breadcrumb__list a { color: var(--plum-700); font-weight: 600; }
.fv-breadcrumb__list a:hover { color: var(--teal); }

/* ── Responsive ── */
@media (max-width: 900px) {
    .fv-single-layout { grid-template-columns: 1fr; gap: 28px; }
    .fv-single-image-wrap { aspect-ratio: 4/3; max-width: 520px; margin: 0 auto; }
    .fv-sim-card { flex: 0 0 170px; }
}
@media (max-width: 600px) {
    .fv-single-specs { grid-template-columns: 1fr; }
    .fv-single-content { padding: 18px 16px; }
    .fv-single-actions { flex-direction: column; }
    .fv-single-actions .fv-btn { width: 100%; justify-content: center; }
    .fv-sim-card { flex: 0 0 150px; }
    .fv-sim-card__price { font-size: 12.5px; }
    .fv-breadcrumb__list [aria-current="page"] { max-width: 130px; }
}