/* پتروخبر — UI مطابق طرح خبرجو */

*, *::before, *::after { box-sizing: border-box; }

:root {
    --pk-blue: #0056b3;
    --pk-blue-light: #2563eb;
    --pk-blue-soft: #eff6ff;
    --pk-bg: #f0f2f5;
    --pk-white: #ffffff;
    --pk-text: #1a1a2e;
    --pk-muted: #6b7280;
    --pk-border: #e5e7eb;
    --pk-green: #16a34a;
    --pk-red: #dc2626;
    --pk-radius: 14px;
    --pk-radius-sm: 10px;
    --pk-shadow: 0 2px 16px rgba(0, 0, 0, 0.05);
    --pk-shadow-sm: 0 1px 6px rgba(0, 0, 0, 0.04);
    --pk-header-h: 56px;
    --pk-ad-w: 1223px;
    --pk-ad-h: 117px;
    /* دسکتاپ: بنر 1223×117 (IAB Leaderboard بزرگ) */
    --pk-ad-visible-w: min(calc(100vw - 20px), var(--pk-ad-w));
    --pk-ad-visible-h: calc(var(--pk-ad-visible-w) * 117 / 1223);
    --pk-ad-wrap-h: calc(var(--pk-ad-visible-h) + 12px);
}

html[data-theme="dark"] {
    --pk-bg: #0f1419;
    --pk-white: #1a2332;
    --pk-text: #f3f4f6;
    --pk-muted: #9ca3af;
    --pk-border: #2d3748;
    --pk-blue-soft: #1e3a5f;
    --pk-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

body.petro-home,
body.petro-site {
    margin: 0;
    font-family: 'Vazirmatn', system-ui, sans-serif;
    background: var(--pk-bg);
    color: var(--pk-text);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

/* ═══ AD SLOT A1 (1223×117) — sticky با منو ═══ */
.pk-ad-a1-wrap {
    background: var(--pk-white);
    border-bottom: 1px solid var(--pk-border);
    padding: 6px 10px;
    position: sticky;
    top: 0;
    z-index: 201;
}
.pk-ad-a1 {
    width: 100%;
    max-width: var(--pk-ad-w);
    height: var(--pk-ad-visible-h);
    margin: 0 auto;
    display: flex;
    align-items: stretch;
    justify-content: center;
    overflow: hidden;
    border-radius: 8px;
}
.pk-ad-a1--placeholder {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1px;
    background: repeating-linear-gradient(
        -45deg,
        #f8fafc,
        #f8fafc 12px,
        #eef2f7 12px,
        #eef2f7 24px
    );
    border: 1px dashed #cbd5e1;
}
.pk-ad-a1-label {
    font-size: clamp(0.75rem, 2.8vw, 1.35rem);
    font-weight: 900;
    letter-spacing: clamp(0.08em, 1.2vw, 0.28em);
    color: #94a3b8;
    line-height: 1;
}
.pk-ad-a1-size {
    font-size: clamp(0.5rem, 1.8vw, 0.65rem);
    font-weight: 700;
    color: #b0bac7;
    letter-spacing: 0.06em;
}
html[data-theme="dark"] .pk-ad-a1--placeholder {
    background: repeating-linear-gradient(
        -45deg,
        #1a2332,
        #1a2332 12px,
        #151d28 12px,
        #151d28 24px
    );
    border-color: #334155;
}
html[data-theme="dark"] .pk-ad-a1-label { color: #64748b; }
html[data-theme="dark"] .pk-ad-a1-size { color: #475569; }
.pk-ad-a1-link,
.pk-ad-a1-html,
.pk-ad-a1-frame {
    display: block;
    width: 100%;
    height: 100%;
    margin: 0;
    border: 0;
}
.pk-ad-a1-link img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

/* ═══ TOP BAR ═══ */
.pk-topbar {
    background: var(--pk-white);
    border-bottom: 1px solid var(--pk-border);
    position: sticky;
    top: var(--pk-ad-wrap-h);
    z-index: 200;
}
.pk-topbar-inner {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0.5rem 0.85rem;
    min-height: var(--pk-header-h);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    grid-template-rows: auto;
    align-items: center;
    gap: 0.75rem;
}
.pk-nav {
    display: flex;
    align-items: center;
    gap: 1.15rem;
    grid-column: 1;
    justify-self: start;
    min-width: 0;
}
.pk-nav-link {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--pk-muted);
    padding: 0.2rem 0 0.45rem;
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s;
    letter-spacing: -0.01em;
}
.pk-nav-link:hover,
.pk-nav-link.is-active {
    color: var(--pk-blue);
    border-bottom-color: var(--pk-blue);
}
.pk-topbar-end {
    grid-column: 3;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    justify-self: end;
    gap: 0.45rem;
    min-width: 0;
}
/* backward compat */
.pk-topbar-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    justify-self: end;
    gap: 0.45rem;
    min-width: 0;
}
/* backward compat if inner pages still use pk-topbar-left */
.pk-topbar-left {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}
.pk-login-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    border: 1.5px solid var(--pk-border);
    background: var(--pk-white);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--pk-text);
    transition: border-color 0.2s, color 0.2s;
}
.pk-login-btn:hover { border-color: var(--pk-blue); color: var(--pk-blue); }
.pk-icon-btn {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 1px solid var(--pk-border);
    background: var(--pk-white);
    color: var(--pk-muted);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    transition: all 0.2s;
    flex-shrink: 0;
}
.pk-icon-btn:hover { color: var(--pk-blue); border-color: var(--pk-blue); }
.pk-mobile-menu {
    display: none;
    background: none;
    border: 1px solid transparent;
    border-radius: 8px;
    width: 34px;
    height: 34px;
    font-size: 1rem;
    color: var(--pk-text);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.pk-mobile-menu.is-active {
    border-color: var(--pk-blue-light);
    color: var(--pk-blue);
    background: var(--pk-blue-soft);
}

/* ═══ HERO / LOGO / SEARCH ═══ */
.pk-logo {
    display: inline-block;
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #0ea5e9 0%, var(--pk-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    text-decoration: none;
}
.pk-logo--bar {
    display: block;
    font-size: 1.45rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    white-space: nowrap;
    text-align: center;
}
.pk-brand--bar {
    grid-column: 2;
    justify-self: center;
    text-align: center;
    line-height: 1.15;
    min-width: 0;
    max-width: 18rem;
}
.pk-tagline--bar {
    margin: 0.12rem 0 0;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--pk-muted);
    line-height: 1.35;
    letter-spacing: -0.01em;
}
.pk-hero {
    background: var(--pk-white);
    border-bottom: 1px solid var(--pk-border);
    padding: 1rem 0.85rem 0.85rem;
}
.pk-hero--chips {
    padding: 0.45rem 0.75rem 0.5rem;
}
.pk-hero-inner {
    max-width: 1140px;
    margin: 0 auto;
    text-align: center;
}
.pk-tagline {
    font-size: 0.8125rem;
    color: var(--pk-muted);
    margin: 0 0 0.65rem;
}
.pk-search {
    position: relative;
    margin-bottom: 0.85rem;
}
.pk-search--bar {
    margin: 0;
    flex: 1 1 auto;
    min-width: 0;
    max-width: 15rem;
}
.pk-search--bar .pk-search-input {
    width: 100%;
    padding: 0.42rem 2rem 0.42rem 0.65rem;
    font-size: 0.8125rem;
    border-width: 1px;
    box-shadow: none;
}
.pk-search--bar .pk-search-icon {
    right: 0.65rem;
    font-size: 0.8rem;
}
.pk-search--bar .pk-search-input:focus {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}
.pk-search-icon {
    position: absolute;
    right: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--pk-muted);
    font-size: 1.125rem;
    pointer-events: none;
}
.pk-search-input {
    width: 100%;
    padding: 0.7rem 2.75rem 0.7rem 1rem;
    border: 1.5px solid var(--pk-border);
    border-radius: 999px;
    background: var(--pk-white);
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--pk-text);
    outline: none;
    box-shadow: var(--pk-shadow-sm);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.pk-search-input:focus {
    border-color: var(--pk-blue-light);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}
.pk-search-input::placeholder { color: #9ca3af; }

.pk-categories {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}
.pk-cat-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    border: 1.5px solid var(--pk-border);
    background: var(--pk-white);
    font-family: inherit;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--pk-text);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}
.pk-cat-chip i { font-size: 0.875rem; opacity: 0.7; }
.pk-cat-chip:hover {
    border-color: var(--pk-blue-light);
    background: var(--pk-blue-soft);
    color: var(--pk-blue);
}
.pk-cat-chip.is-active {
    background: var(--pk-blue);
    border-color: var(--pk-blue);
    color: #fff;
}
.pk-cat-chip.is-active i { opacity: 1; }

/* ═══ LAYOUT ═══ */
.pk-layout {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0.75rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}
@media (max-width: 1023px) {
    .pk-main { order: 1; }
    .pk-sidebar { order: 2; }
}
@media (min-width: 1024px) {
    .pk-layout {
        grid-template-columns: 300px 1fr;
        align-items: start;
    }
    /* RTL: sidebar first column = right side */
    .pk-sidebar { grid-column: 1; grid-row: 1; }
    .pk-main { grid-column: 2; grid-row: 1; }
}

/* ═══ SIDEBAR ═══ */
.pk-sidebar {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}
.pk-panel {
    background: var(--pk-white);
    border-radius: var(--pk-radius);
    border: 1px solid var(--pk-border);
    box-shadow: var(--pk-shadow-sm);
    overflow: hidden;
}
.pk-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid var(--pk-border);
}
.pk-panel-title {
    margin: 0;
    font-size: 0.9375rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.pk-panel-title i { color: var(--pk-blue); }
.pk-demo-badge {
    font-size: 0.62rem;
    font-weight: 700;
    color: var(--pk-muted);
    background: var(--pk-bg);
    border: 1px solid var(--pk-border);
    border-radius: 999px;
    padding: 0.12rem 0.45rem;
    line-height: 1.2;
}
.pk-live-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--pk-green);
    box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.25);
    animation: pk-pulse 2s infinite;
}
@keyframes pk-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
.pk-refresh-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 8px;
    background: var(--pk-blue-soft);
    color: var(--pk-blue);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}
.pk-price-list { padding: 0.25rem 0; }
.pk-price-row {
    display: grid;
    grid-template-columns: 36px 1fr auto auto 56px;
    align-items: center;
    gap: 0.45rem 0.5rem;
    padding: 0.55rem 0.75rem;
    border-bottom: 1px solid var(--pk-border);
    font-size: 0.8125rem;
}
.pk-price-row:last-child { border-bottom: none; }
.pk-price-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    flex-shrink: 0;
}
.pk-price-name { font-weight: 700; color: var(--pk-text); }
.pk-price-value {
    font-weight: 800;
    direction: ltr;
    text-align: left;
    white-space: nowrap;
}
.pk-price-change {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.15rem 0.4rem;
    border-radius: 6px;
    direction: ltr;
}
.pk-price-change.up { color: var(--pk-green); background: rgba(22,163,74,0.1); }
.pk-price-change.down { color: var(--pk-red); background: rgba(220,38,38,0.1); }
.pk-sparkline { width: 56px; height: 28px; }
.pk-panel-foot {
    padding: 0.75rem;
    text-align: center;
    border-top: 1px solid var(--pk-border);
    background: #fafbfc;
}
html[data-theme="dark"] .pk-panel-foot { background: rgba(0,0,0,0.15); }
.pk-panel-foot a {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--pk-blue);
}
.pk-panel-foot--demo {
    padding: 0.5rem 0.65rem;
}
.pk-panel-foot--demo span {
    display: block;
    font-size: 0.68rem;
    line-height: 1.45;
    color: var(--pk-muted);
    font-weight: 600;
}

/* باکس پربازدید — هم‌استایل با تابلو قیمت */
.pk-most-visited-slot:empty { display: none; }

.petro-home .pk-mv-panel {
    margin-bottom: 0;
}
.petro-home .pk-mv-panel .pk-panel-head {
    padding: 0.55rem 0.75rem;
}
.petro-home .pk-mv-panel .pk-panel-title i {
    color: #f97316;
}
.pk-mv-list {
    padding: 0.15rem 0;
}
.pk-mv-item {
    display: flex;
    align-items: flex-start;
    gap: 0.45rem;
    padding: 0.4rem 0.65rem;
    border-bottom: 1px solid var(--pk-border);
    text-decoration: none;
    color: inherit;
    transition: background 0.15s ease;
}
.pk-mv-item:last-child { border-bottom: none; }
.pk-mv-item:hover {
    background: var(--pk-blue-soft);
}
.pk-mv-item__dot {
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    margin-top: 0.45rem;
    border-radius: 50%;
    background: var(--pk-blue-light);
    opacity: 0.55;
    transition: opacity 0.15s ease, transform 0.15s ease;
}
.pk-mv-item:hover .pk-mv-item__dot {
    opacity: 1;
    transform: scale(1.15);
}
.pk-mv-item__body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.12rem;
}
.pk-mv-item__title {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1.45;
    color: var(--pk-text);
    transition: color 0.15s ease;
}
.pk-mv-item:hover .pk-mv-item__title { color: var(--pk-blue); }
.pk-mv-item__src {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--pk-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pk-quick-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.625rem;
}
.pk-quick-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 0.5rem;
    background: var(--pk-white);
    border: 1px solid var(--pk-border);
    border-radius: var(--pk-radius-sm);
    box-shadow: var(--pk-shadow-sm);
    font-size: 0.75rem;
    font-weight: 700;
    text-align: center;
    color: var(--pk-text);
    transition: border-color 0.2s, color 0.2s, transform 0.2s;
}
.pk-quick-card i {
    font-size: 1.25rem;
    color: var(--pk-blue);
}
.pk-quick-card:hover {
    border-color: var(--pk-blue);
    color: var(--pk-blue);
    transform: translateY(-2px);
}

.pk-newsletter-panel { background: linear-gradient(180deg, #eff6ff 0%, var(--pk-white) 100%); }
html[data-theme="dark"] .pk-newsletter-panel {
    background: linear-gradient(180deg, #1e3a5f 0%, var(--pk-white) 100%);
}
.pk-newsletter {
    padding: 1.5rem 1.25rem;
    text-align: center;
}
.pk-newsletter-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 0.875rem;
    border-radius: 50%;
    background: var(--pk-blue);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}
.pk-newsletter h3 {
    margin: 0 0 0.375rem;
    font-size: 1rem;
    font-weight: 800;
}
.pk-newsletter p {
    margin: 0 0 1rem;
    font-size: 0.8125rem;
    color: var(--pk-muted);
    line-height: 1.7;
}
.pk-newsletter-form { display: flex; flex-direction: column; gap: 0.625rem; }
.pk-newsletter-input {
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--pk-border);
    border-radius: var(--pk-radius-sm);
    font-family: inherit;
    font-size: 0.875rem;
    background: var(--pk-white);
    color: var(--pk-text);
}
.pk-newsletter-btn {
    padding: 0.75rem;
    border: none;
    border-radius: var(--pk-radius-sm);
    background: var(--pk-blue);
    color: #fff;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s;
}
.pk-newsletter-btn:hover { background: #004494; }

/* ═══ MAIN CONTENT ═══ */
.pk-main { min-width: 0; }
.pk-block { margin-bottom: 1.25rem; }
.pk-block:last-child { margin-bottom: 0; }
.pk-block-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.65rem;
}
.pk-block-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.pk-icon-fire { color: #f97316; }
.pk-icon-news { color: var(--pk-blue); }
.pk-block-link {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--pk-blue);
    padding: 0.375rem 0.875rem;
    border-radius: 999px;
    border: 1.5px solid var(--pk-border);
    background: var(--pk-white);
    transition: all 0.2s;
}
.pk-block-link:hover {
    border-color: var(--pk-blue);
    background: var(--pk-blue-soft);
}

/* Sort dropdown */
.pk-sort-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
}
.pk-sort-select {
    appearance: none;
    padding: 0.5rem 2rem 0.5rem 1rem;
    border: 1.5px solid var(--pk-border);
    border-radius: var(--pk-radius-sm);
    background: var(--pk-white);
    font-family: inherit;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--pk-text);
    cursor: pointer;
}
.pk-sort-chevron {
    position: absolute;
    left: 0.75rem;
    pointer-events: none;
    font-size: 0.625rem;
    color: var(--pk-muted);
}

/* ═══ HOT NEWS CAROUSEL ═══ */
.pk-carousel-box {
    position: relative;
}
.pk-carousel {
    display: flex;
    gap: 0.65rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    scrollbar-width: none;
    padding: 0.15rem 0 0.35rem;
}
.pk-carousel::-webkit-scrollbar { display: none; }
.pk-hot-card {
    flex: 0 0 calc(50% - 0.5rem);
    min-width: 260px;
    scroll-snap-align: start;
    position: relative;
    border-radius: var(--pk-radius);
    overflow: hidden;
    min-height: 300px;
    display: block;
    color: #fff;
    box-shadow: var(--pk-shadow);
    transition: transform 0.25s;
}
.pk-hot-card:hover { transform: translateY(-4px); }
@media (min-width: 900px) {
    .pk-hot-card { flex: 0 0 calc(33.333% - 0.67rem); }
}
@media (min-width: 1200px) {
    .pk-hot-card { flex: 0 0 calc(25% - 0.75rem); min-width: 220px; }
}
.pk-hot-img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform 0.4s;
}
.pk-hot-img--empty,
.pk-news-thumb--empty {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg, #dbeafe 0%, #e2e8f0 100%);
    color: #64748b;
}
html[data-theme="dark"] .pk-hot-img--empty,
html[data-theme="dark"] .pk-news-thumb--empty {
    background: linear-gradient(145deg, #1e293b 0%, #0f172a 100%);
    color: #94a3b8;
}
.pk-hot-img--empty i,
.pk-news-thumb-empty i {
    font-size: 2rem;
    opacity: 0.45;
}
.pk-news-thumb-empty {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.pk-hot-card:hover .pk-hot-img { transform: scale(1.05); }
.pk-hot-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.92) 0%, rgba(0,0,0,0.35) 45%, rgba(0,0,0,0.05) 100%);
}
.pk-hot-body {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.25rem;
}
.pk-hot-tag {
    align-self: flex-start;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.6875rem;
    font-weight: 800;
    margin-bottom: 0.625rem;
    color: #fff;
}
.pk-hot-title {
    margin: 0 0 0.625rem;
    font-size: 1.0625rem;
    font-weight: 800;
    line-height: 1.55;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.pk-hot-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.75rem;
    opacity: 0.9;
}
.pk-hot-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}
.pk-carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: var(--pk-white);
    color: var(--pk-blue);
    box-shadow: var(--pk-shadow);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 5;
    font-size: 0.875rem;
    transition: transform 0.2s;
}
.pk-carousel-btn:hover { transform: translateY(-50%) scale(1.08); }
@media (min-width: 768px) { .pk-carousel-btn { display: flex; } }
.pk-carousel-prev { right: -14px; }
.pk-carousel-next { left: -14px; }

/* ═══ آخرین اخبار — کارت فشرده با کادر دسته ═══ */
#latest-section .pk-news-grid--feed {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.4rem;
    background: transparent;
    border: none;
    box-shadow: none;
    overflow: visible;
}
#latest-section .pk-news-grid--feed::before { display: none; }

@media (min-width: 560px) {
    #latest-section .pk-news-grid--feed {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.45rem;
    }
}
@media (min-width: 900px) {
    #latest-section .pk-news-grid--feed {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 0.45rem;
    }
}

.pk-feed-card {
    position: relative;
    display: block;
    padding: 0.4rem 0.45rem;
    border-radius: 10px;
    border: 1px solid var(--pk-border);
    background: var(--pk-white);
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    box-shadow: 0 1px 6px rgba(15, 23, 42, 0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
html[data-theme="dark"] .pk-feed-card {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
}
.pk-feed-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.1);
    border-color: rgba(37, 99, 235, 0.22);
}

.pk-feed-card__row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    min-height: 0;
}
.pk-feed-cat-box {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    min-width: 42px;
    min-height: 42px;
    max-width: 42px;
    max-height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.2rem;
    border-radius: 8px;
    background: var(--feed-cat-bg, linear-gradient(160deg, #0056b3, #3b82f6));
    color: #fff;
    box-shadow: 0 2px 6px var(--feed-cat-shadow, rgba(37, 99, 235, 0.25));
    text-align: center;
    line-height: 1.15;
    overflow: hidden;
}
.pk-feed-cat-box span {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    font-size: 0.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    word-break: break-word;
}
.pk-feed-card__main {
    flex: 1;
    min-width: 0;
}
.pk-feed-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.15rem 0.3rem;
    margin-bottom: 0.2rem;
    font-size: 0.64rem;
    font-weight: 600;
    color: var(--pk-muted);
    line-height: 1.3;
}
.pk-feed-time {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    color: var(--feed-pill-color, var(--pk-blue-light));
    font-weight: 700;
    white-space: nowrap;
}
.pk-feed-time i { font-size: 0.6rem; opacity: 0.75; }
.pk-feed-meta-sep {
    color: var(--pk-border);
    font-weight: 800;
    user-select: none;
}
.pk-feed-source {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 700;
    color: var(--pk-muted);
}

.pk-bookmark-btn--feed {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    border-radius: 7px;
    background: var(--pk-bg);
    border: 1px solid var(--pk-border);
    margin-top: 0.05rem;
}
.pk-bookmark-btn--feed.is-saved {
    background: rgba(37, 99, 235, 0.12);
    border-color: rgba(37, 99, 235, 0.25);
    color: var(--pk-blue);
}

.pk-feed-title {
    margin: 0;
    font-size: 0.8rem;
    font-weight: 800;
    line-height: 1.45;
    color: var(--pk-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.2s;
}
.pk-feed-card:hover .pk-feed-title { color: var(--pk-blue); }

/* رنگ‌بندی per دسته */
.pk-feed-accent--default {
    --feed-cat-bg: linear-gradient(160deg, #0056b3, #3b82f6);
    --feed-cat-shadow: rgba(37, 99, 235, 0.28);
    --feed-pill-color: #2563eb;
}
.pk-feed-accent--oil-gas {
    --feed-cat-bg: linear-gradient(160deg, #0369a1, #0ea5e9);
    --feed-cat-shadow: rgba(14, 165, 233, 0.32);
    --feed-pill-color: #0284c7;
}
.pk-feed-accent--petrochem {
    --feed-cat-bg: linear-gradient(160deg, #86198f, #c026d3);
    --feed-cat-shadow: rgba(192, 38, 211, 0.3);
    --feed-pill-color: #a21caf;
}
.pk-feed-accent--water-power {
    --feed-cat-bg: linear-gradient(160deg, #0284c7, #38bdf8);
    --feed-cat-shadow: rgba(56, 189, 248, 0.3);
    --feed-pill-color: #0284c7;
}
.pk-feed-accent--refining-distribution {
    --feed-cat-bg: linear-gradient(160deg, #c2410c, #ea580c);
    --feed-cat-shadow: rgba(234, 88, 12, 0.3);
    --feed-pill-color: #c2410c;
}
.pk-feed-accent--power-plant {
    --feed-cat-bg: linear-gradient(160deg, #047857, #059669);
    --feed-cat-shadow: rgba(5, 150, 105, 0.3);
    --feed-pill-color: #047857;
}
.pk-feed-accent--auction {
    --feed-cat-bg: linear-gradient(160deg, #b45309, #d97706);
    --feed-cat-shadow: rgba(217, 119, 6, 0.3);
    --feed-pill-color: #b45309;
}
.pk-feed-accent--tender {
    --feed-cat-bg: linear-gradient(160deg, #0f766e, #0d9488);
    --feed-cat-shadow: rgba(13, 148, 136, 0.3);
    --feed-pill-color: #0f766e;
}

.pk-feed-card--skel {
    min-height: 58px;
    pointer-events: none;
    background: linear-gradient(90deg, var(--pk-border) 25%, rgba(248, 250, 252, 0.9) 50%, var(--pk-border) 75%);
    background-size: 200% 100%;
    animation: pk-shimmer 1.2s infinite;
}
.pk-feed-card--skel .pk-feed-card__row { visibility: hidden; }

#latest-section .pk-empty {
    grid-column: 1 / -1;
    padding: 2rem 1.25rem;
    text-align: center;
    color: var(--pk-muted);
    background: var(--pk-white);
    border-radius: 12px;
    border: 1px dashed var(--pk-border);
}
@media (max-width: 480px) {
    .pk-feed-card { padding: 0.38rem 0.42rem; }
    .pk-feed-title { font-size: 0.78rem; }
}

/* موبایل: نمودار sparkline پایین هر ردیف قیمت */
@media (max-width: 767px) {
    .pk-price-row {
        grid-template-columns: 32px 1fr auto auto;
        grid-template-areas:
            "icon name change value"
            "chart chart chart chart";
        gap: 0.25rem 0.4rem;
        padding: 0.45rem 0.65rem;
    }
    .pk-price-icon { grid-area: icon; width: 32px; height: 32px; font-size: 0.8rem; }
    .pk-price-name { grid-area: name; }
    .pk-price-change { grid-area: change; }
    .pk-price-value { grid-area: value; }
    .pk-sparkline {
        grid-area: chart;
        width: 100%;
        height: 24px;
        display: block;
        margin-top: 0.15rem;
    }
}

.pk-news-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}
@media (min-width: 640px) {
    .pk-news-grid:not(.pk-news-grid--feed) { grid-template-columns: repeat(2, 1fr); }
}
.pk-news-card {
    background: var(--pk-white);
    border-radius: var(--pk-radius);
    overflow: hidden;
    border: 1px solid var(--pk-border);
    box-shadow: var(--pk-shadow-sm);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s, background 0.2s;
    text-decoration: none;
    color: inherit;
}
.pk-news-card:not(.pk-news-card--text):hover {
    transform: translateY(-3px);
    box-shadow: var(--pk-shadow);
}
.pk-news-thumb {
    position: relative;
    height: 180px;
    overflow: hidden;
    background: #cbd5e1;
}
.pk-news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
}
.pk-news-card:hover .pk-news-thumb img { transform: scale(1.06); }
.pk-news-tag {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    padding: 0.2rem 0.625rem;
    border-radius: 999px;
    font-size: 0.6875rem;
    font-weight: 800;
    color: #fff;
    z-index: 2;
}
.pk-news-body {
    padding: 1rem 1.125rem 1.125rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.pk-news-title {
    margin: 0 0 0.75rem;
    font-size: 1rem;
    font-weight: 800;
    line-height: 1.6;
    color: var(--pk-text);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.2s;
}
.pk-news-card:hover .pk-news-title { color: var(--pk-blue); }
.pk-news-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    font-size: 0.75rem;
    color: var(--pk-muted);
}
.pk-news-source {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-weight: 600;
}
.pk-news-source i { font-size: 0.625rem; opacity: 0.6; }
.pk-bookmark-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 8px;
    background: var(--pk-blue-soft);
    color: var(--pk-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}
.pk-bookmark-btn:hover { color: var(--pk-blue); }
.pk-bookmark-btn.is-saved { color: var(--pk-blue); background: rgba(0,86,179,0.15); }

.pk-load-more {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    margin-top: 1.25rem;
    padding: 0.875rem;
    border: 2px solid var(--pk-border);
    border-radius: var(--pk-radius);
    background: var(--pk-white);
    color: var(--pk-blue);
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}
.pk-load-more:hover {
    border-color: var(--pk-blue);
    background: var(--pk-blue-soft);
}

.pk-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem 1rem;
    color: var(--pk-muted);
    font-size: 0.9375rem;
}

/* Category colors */
.pk-tag-oil { background: #0369a1; }
.pk-tag-gas { background: #7c3aed; }
.pk-tag-petrochem { background: #c026d3; }
.pk-tag-water-power { background: #0284c7; }
.pk-tag-refining-distribution { background: #ea580c; }
.pk-tag-power-plant { background: #059669; }
.pk-tag-auction { background: #b45309; }
.pk-tag-tender { background: #0d9488; }
.pk-tag-default { background: var(--pk-blue); }

/* Price icon colors */
.pk-picon-brent { background: #dbeafe; color: #1d4ed8; }
.pk-picon-wti { background: #fef3c7; color: #b45309; }
.pk-picon-gas { background: #fce7f3; color: #be185d; }
.pk-picon-opec { background: #d1fae5; color: #047857; }
.pk-picon-usd { background: #e0e7ff; color: #4338ca; }
.pk-picon-gold { background: #fef9c3; color: #a16207; }

/* Skeleton */
.pk-skeleton-card,
.pk-skeleton-grid {
    background: linear-gradient(90deg, var(--pk-border) 25%, #f8fafc 50%, var(--pk-border) 75%);
    background-size: 200% 100%;
    animation: pk-shimmer 1.2s infinite;
    min-height: 300px;
    border-radius: var(--pk-radius);
}
.pk-skeleton-grid { min-height: 320px; }
.pk-skeleton-text {
    min-height: 88px;
    border-right-color: transparent !important;
    pointer-events: none;
}
@keyframes pk-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Footer */
.pk-footer {
    text-align: center;
    padding: 1.25rem 1rem 1.5rem;
    font-size: 0.8125rem;
    color: var(--pk-muted);
    border-top: 1px solid var(--pk-border);
    background: var(--pk-white);
}
.pk-footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1.25rem;
    margin-bottom: 0.75rem;
}
.pk-footer-link {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--pk-muted);
    text-decoration: none;
    transition: color 0.2s;
}
.pk-footer-link:hover { color: var(--pk-blue); }
.pk-footer p { margin: 0; }

/* Mobile */
@media (max-width: 768px) {
    .pk-nav {
        display: none;
        flex: none;
    }
    .pk-nav.is-open {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        position: absolute;
        top: calc(100% - 1px);
        right: 0;
        left: 0;
        background: var(--pk-white);
        padding: 0.75rem 1rem 1rem;
        border-bottom: 1px solid var(--pk-border);
        box-shadow: var(--pk-shadow);
        gap: 0.35rem;
        z-index: 210;
    }
    .pk-nav.is-open .pk-nav-link {
        padding: 0.65rem 0.4rem;
        font-size: 0.9rem;
        border-bottom: none;
        border-radius: 8px;
    }
    .pk-nav.is-open .pk-nav-link.is-active,
    .pk-nav.is-open .pk-nav-link:hover {
        background: var(--pk-blue-soft);
    }
    .pk-mobile-menu { display: inline-flex; grid-column: 1; grid-row: 1; justify-self: start; }
    .pk-topbar-inner {
        grid-template-columns: 42px 1fr 42px;
        grid-template-rows: auto auto;
        gap: 0.45rem 0.5rem;
        padding: 0.5rem 0.6rem;
        min-height: 0;
        align-items: center;
    }
    .pk-nav {
        display: none;
        flex: none;
    }
    .pk-brand--bar {
        grid-column: 2;
        grid-row: 1;
        position: static;
        transform: none;
        max-width: none;
        padding: 0 0.15rem;
    }
    .pk-brand--bar .pk-logo--bar {
        font-size: 1.05rem;
    }
    .pk-tagline--bar {
        font-size: 0.58rem;
        line-height: 1.3;
        margin-top: 0.08rem;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
        overflow: hidden;
    }
    .pk-topbar-end {
        display: contents;
    }
    .pk-search--bar {
        grid-column: 1 / -1;
        grid-row: 2;
        max-width: none;
        width: 100%;
    }
    .pk-search--bar .pk-search-input {
        padding: 0.48rem 2rem 0.48rem 0.65rem;
        font-size: 0.8125rem;
    }
    #theme-toggle {
        grid-column: 3;
        grid-row: 1;
        justify-self: end;
    }
    .pk-hero--chips { padding: 0.4rem 0.55rem 0.45rem; }
    .pk-block { margin-bottom: 0.85rem; }
    .pk-hot-card { flex: 0 0 88%; min-height: 200px; }
    .pk-layout { padding: 0.55rem; gap: 0.55rem; }
    .pk-hero { padding: 0.75rem 0.65rem 0.65rem; }
    .pk-block-head { margin-bottom: 0.5rem; }
    .pk-block-title { font-size: 1.05rem; }
    .pk-panel-head { padding: 0.55rem 0.7rem; }
    .pk-panel-foot--demo { padding: 0.4rem 0.55rem; }
    .pk-categories {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: stretch;
        gap: 0.38rem 0.32rem;
        width: 100%;
        max-width: 22.5rem;
        margin: 0 auto;
    }
    .pk-cat-chip {
        flex: 0 0 auto;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 4.75rem;
        min-height: 3.35rem;
        padding: 0.38rem 0.22rem 0.32rem;
        font-size: 0.6875rem;
        font-weight: 700;
        gap: 0.25rem;
        border-width: 1.5px;
        border-radius: 11px;
        white-space: normal;
        text-align: center;
        line-height: 1.28;
    }
    .pk-cat-chip i {
        display: inline-flex;
        font-size: 0.82rem;
        opacity: 0.72;
        line-height: 1;
    }
    .pk-cat-chip.is-active i { opacity: 1; }
    .pk-ad-a1-wrap {
        padding: 6px 8px;
    }
    /* موبایل: استاندارد IAB Large Mobile Banner — 320×100 (نه مقیاس 1223×117) */
    :root {
        --pk-ad-visible-w: calc(100vw - 16px);
        --pk-ad-visible-h: calc(var(--pk-ad-visible-w) * 100 / 320);
        --pk-ad-wrap-h: calc(var(--pk-ad-visible-h) + 12px);
    }
}