/* ==========================================================================
   PRODUCTS PAGE — products.css
   ========================================================================== */

.pr-card-img {
    width: 100%;
    display: block;
    border-radius: 8px 8px 0 0;
    margin-bottom: 16px;
    background: #f1f5f9;
    object-fit: contain;
    max-height: 200px;
    padding: 12px;
    box-sizing: border-box;
}

/* ===== HERO ===== */
.pr-hero {
    min-height: 420px;
    position: relative;
    display: flex;
    align-items: center;
    background: url('../img/industrial-foundry.webp') center center / cover no-repeat;
    padding-top: 90px;
    overflow: hidden;
}

.pr-hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 48, 135, 0.4);
    z-index: 1;
}

.pr-hero .container {
    position: relative;
    z-index: 2;
}

.pr-hero-inner {
    padding: 60px 0 50px;
    width: 100%;
}

.pr-hero-title {
    font-size: 3.2rem;
    font-weight: 900;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
    animation: heroFadeUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.pr-hero-title span {
    color: rgba(255, 255, 255, 0.7);
}

.pr-hero-sub {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 100%;
    line-height: 1.7;
    margin-bottom: 0;
    animation: heroFadeUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.35s both;
}

.pr-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.75);
    margin-top: 24px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    padding: 8px 18px;
    border-radius: 999px;
    backdrop-filter: blur(8px);
    animation: heroFadeUp 0.6s cubic-bezier(0.16,1,0.3,1) 0.1s both;
}

.pr-breadcrumb a {
    color: rgba(255, 255, 255, 0.80);
    transition: color 0.2s;
}

.pr-breadcrumb a:hover {
    color: #ffffff;
}

.pr-breadcrumb span {
    color: #ffffff;
    font-weight: 700;
}

.pr-breadcrumb i.fa-chevron-right {
    font-size: 0.55rem;
    color: rgba(255, 255, 255, 0.4);
}

/* ===== PRODUCT INFO ACCORDION ===== */
.pr-info-section {
    background: #ffffff;
    border-bottom: 1px solid #e2e8f0;
    padding: 0;
}

.pr-info-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
    cursor: pointer;
    user-select: none;
    gap: 12px;
}

.pr-info-toggle-left {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--corporate-blue);
}

.pr-info-toggle-left i {
    font-size: 1rem;
}

.pr-info-arrow {
    color: #94a3b8;
    font-size: 0.75rem;
    transition: transform 0.3s ease;
}

.pr-info-arrow.rotated {
    transform: rotate(180deg);
}

.pr-info-body {
    display: none;
    padding-bottom: 32px;
}

.pr-info-body.open {
    display: block;
    animation: fadeIn 0.3s ease;
}

.pr-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    border-top: 1px solid #e2e8f0;
    padding-top: 28px;
}

.pr-info-block h4 {
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--corporate-blue);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pr-info-block h5 {
    font-size: 0.78rem;
    font-weight: 700;
    color: #1e293b;
    margin: 14px 0 6px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.pr-info-block p {
    font-size: 0.82rem;
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 10px;
}

.pr-info-block strong {
    color: #1e293b;
    font-weight: 700;
}

.pr-info-lube {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.pr-info-lube-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.82rem;
    color: #475569;
    line-height: 1.6;
}

.pr-info-lube-item i {
    color: var(--corporate-blue);
    font-size: 0.85rem;
    margin-top: 2px;
    flex-shrink: 0;
}

@media (max-width: 1024px) {
    .pr-info-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .pr-info-grid { grid-template-columns: 1fr; gap: 20px; }
}

/* ===== FILTER BAR ===== */
.pr-filter-bar {
    background: #ffffff;
    border-bottom: 1px solid #e2e8f0;
    padding: 0;
    position: sticky;
    top: 90px;
    z-index: 100;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

.pr-filter-tabs {
    display: flex;
    gap: 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.pr-filter-tabs::-webkit-scrollbar {
    display: none;
}

.pr-tab {
    padding: 18px 28px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #64748b;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.pr-tab:hover {
    color: var(--corporate-blue);
    background: rgba(0, 48, 135, 0.04);
}

.pr-tab.active {
    color: var(--corporate-blue);
    border-bottom-color: var(--corporate-blue);
    background: rgba(0, 48, 135, 0.04);
}

/* ===== PRODUCTS SECTION ===== */
.pr-section {
    padding: 70px 0 80px;
    background: #f8fafc;
}

.pr-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 28px;
}

/* ===== PRODUCT CARD ===== */
.pr-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    position: relative;
}

.pr-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--corporate-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.pr-card:hover {
    border-color: var(--corporate-blue);
    box-shadow: 0 12px 40px rgba(0, 48, 135, 0.12);
    transform: translateY(-5px);
}

.pr-card:hover::before {
    transform: scaleX(1);
}

.pr-card-top {
    padding: 26px 26px 0;
}

.pr-card-bottom {
    padding: 0 26px 26px;
}

.pr-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
    flex-wrap: wrap;
    gap: 6px;
}

.pr-badge-material {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: #f1f5f9;
    color: #475569;
    padding: 4px 10px;
    border-radius: 4px;
}

.pr-series-code {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--corporate-blue);
}

.pr-card-name {
    font-size: 1.45rem;
    font-weight: 800;
    color: #1e293b;
    margin-bottom: 6px;
}

.pr-card-type {
    font-size: 0.75rem;
    font-weight: 600;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.pr-card-type i {
    color: var(--corporate-blue);
    font-size: 0.7rem;
}

.pr-card-desc {
    font-size: 0.875rem;
    color: #475569;
    line-height: 1.65;
    margin-bottom: 20px;
}

/* Specs list */
.pr-specs {
    border-top: 1px solid #f1f5f9;
    padding-top: 16px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pr-specs li {
    font-size: 0.8rem;
    color: #475569;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pr-specs li i {
    color: var(--corporate-blue);
    font-size: 0.55rem;
    flex-shrink: 0;
}

/* Enquiry button */
.pr-enquiry-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--corporate-blue);
    border-top: 1px solid #f1f5f9;
    padding-top: 16px;
    width: 100%;
    transition: gap 0.2s ease;
}

.pr-enquiry-btn i {
    transition: transform 0.2s ease;
}

.pr-card:hover .pr-enquiry-btn i {
    transform: translateX(4px);
}

/* ===== CTA STRIP ===== */
.pr-cta-strip {
    background: var(--corporate-blue);
    padding: 60px 0;
}

.pr-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
}

.pr-cta-text h3 {
    font-size: 1.6rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 8px;
}

.pr-cta-text p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 480px;
}

.pr-cta-btns {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    flex-shrink: 0;
}

.pr-cta-strip .btn-secondary {
    border-color: rgba(255, 255, 255, 0.4) !important;
    color: #ffffff !important;
    background: rgba(255, 255, 255, 0.1) !important;
}

.pr-cta-strip .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2) !important;
    border-color: #ffffff !important;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .pr-grid { grid-template-columns: repeat(2, 1fr); }
    .pr-info-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .pr-hero { padding-top: 68px; min-height: 280px; }
    .pr-hero-title { font-size: 1.9rem; }
    .pr-hero-inner { padding: 36px 0 28px; }
    .pr-hero-sub { font-size: 0.88rem; }
    .pr-filter-bar { top: 68px; }
    .pr-tab { padding: 12px 14px; font-size: 0.68rem; }
    .pr-grid { grid-template-columns: 1fr; gap: 16px; }
    .pr-info-grid { grid-template-columns: 1fr; gap: 16px; }
    .pr-section { padding: 32px 0 44px; }
    .pr-cta-strip { padding: 36px 0; }
    .pr-cta-inner { flex-direction: column; align-items: flex-start; gap: 16px; }
    .pr-cta-btns { width: 100%; flex-direction: column; }
    .pr-cta-btns .btn { width: 100%; justify-content: center; }
    .pr-cta-text h3 { font-size: 1.2rem; }
    .pr-cta-text p { font-size: 0.85rem; }
    .pr-card-name { font-size: 1.2rem; }
    .pr-card-top { padding: 18px 18px 0; }
    .pr-card-bottom { padding: 0 18px 18px; }
}

@media (max-width: 480px) {
    .pr-hero-title { font-size: 1.55rem; }
    .pr-hero-sub { font-size: 0.82rem; }
    .pr-card-top, .pr-card-bottom { padding-left: 14px; padding-right: 14px; }
    .pr-tab { padding: 10px 10px; font-size: 0.62rem; }
    .pr-badge-material { font-size: 0.52rem; }
    .pr-card-name { font-size: 1.1rem; }
}