/* ============================================
   ARCOR-STYLE INDUSTRIAL EPOXY SITE
   Professional, clean, industrial aesthetic
   ============================================ */

/* --- CSS Variables --- */
:root {
    --color-primary: #1a3a5c;
    --color-primary-dark: #0f2840;
    --color-primary-light: #2a5a8c;
    --color-accent: #d4a017;
    --color-accent-hover: #b8890f;
    --color-danger: #c0392b;
    --color-text: #2c3e50;
    --color-text-light: #6b7b8d;
    --color-text-inverse: #ffffff;
    --color-bg: #ffffff;
    --color-bg-alt: #f4f6f8;
    --color-bg-dark: #1a2332;
    --color-border: #dde3e9;
    --color-border-light: #eef1f5;

    --font-heading: 'DM Serif Display', Georgia, serif;
    --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --shadow-xl: 0 16px 50px rgba(0,0,0,0.15);

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --max-width: 1200px;
    --header-height: 80px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary-light); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-accent); }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5 {
    font-family: var(--font-heading);
    color: var(--color-primary-dark);
    line-height: 1.25;
}
h1 { font-size: 2.75rem; font-weight: 400; }
h2 { font-size: 2.3rem; font-weight: 400; }
h3 { font-size: 1.5rem; font-weight: 400; }
h4 { font-size: 1.2rem; font-weight: 400; }

/* --- Section Utilities --- */
.section {
    padding: 80px 0;
}
.section--alt {
    background: var(--color-bg-alt);
}
.section--dark {
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
}
.section--dark h2,
.section--dark h3,
.section--dark h4 {
    color: var(--color-text-inverse);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}
.section-header h2 {
    margin-bottom: 12px;
}
.section-header .divider {
    width: 60px;
    height: 3px;
    background: var(--color-accent);
    margin: 16px auto;
    border-radius: 2px;
}
.section-header p {
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.05rem;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.25s ease;
    border: 2px solid transparent;
    text-decoration: none;
}
.btn--primary {
    background: var(--color-accent);
    color: var(--color-primary-dark);
    border-color: var(--color-accent);
}
.btn--primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}
.btn--outline {
    background: transparent;
    color: var(--color-text-inverse);
    border-color: var(--color-text-inverse);
}
.btn--outline:hover {
    background: var(--color-text-inverse);
    color: var(--color-primary-dark);
}
.btn--outline-dark {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn--outline-dark:hover {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}
.btn--sm {
    padding: 8px 18px;
    font-size: 0.85rem;
}
.btn--download {
    background: var(--color-danger);
    color: #fff;
    border-color: var(--color-danger);
}
.btn--download:hover {
    background: #a93226;
    border-color: #a93226;
    color: #fff;
    transform: translateY(-1px);
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-primary-dark);
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}
.header__logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}
.header__logo-icon {
    width: 42px;
    height: 42px;
    background: var(--color-accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--color-primary-dark);
    font-weight: 700;
}
.header__logo-text {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    color: var(--color-text-inverse);
    letter-spacing: 1px;
}
.header__logo-text span {
    color: var(--color-accent);
}

.header__logo-img {
    height: 60px;
    width: auto;
}

.footer__logo-img {
    height: 100px;
    width: auto;
    margin-bottom: 16px;
}

/* Desktop Nav */
.nav {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav__link {
    padding: 8px 16px;
    color: rgba(255,255,255,0.85);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    position: relative;
}
.nav__link:hover,
.nav__link--active {
    color: #fff;
    background: rgba(255,255,255,0.1);
}
.nav__link--active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
}

/* Dropdown */
.nav__dropdown {
    position: relative;
}
.nav__dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 8px 0;
    margin-top: 8px;
    z-index: 100;
}
.nav__dropdown:hover .nav__dropdown-menu {
    display: block;
}
.nav__dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--color-text);
    font-size: 0.9rem;
    font-weight: 400;
    text-transform: none;
}
.nav__dropdown-menu a:hover {
    background: var(--color-bg-alt);
    color: var(--color-primary);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    margin: 5px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    overflow: hidden;
    min-height: 500px;
    display: flex;
    align-items: center;
}
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(212,160,23,0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.04) 0%, transparent 50%);
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-accent);
}
.hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}
.hero__tagline {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-accent);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 20px;
}
.hero__title {
    font-family: var(--font-heading);
    font-size: 3.2rem;
    color: #fff;
    margin-bottom: 20px;
    line-height: 1.15;
}
.hero__subtitle {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.75);
    margin-bottom: 36px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.hero__actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   HOME: INFO CARDS (Who We Are, Our Products, Why Choose Us)
   ============================================ */
.info-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.info-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border-light);
}
.info-card__image {
    height: 220px;
    background: var(--color-bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
.info-card__image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.3);
    font-size: 3rem;
}
.info-card__body {
    padding: 28px;
}
.info-card__title {
    font-size: 1.35rem;
    margin-bottom: 6px;
    color: var(--color-primary-dark);
}
.info-card__divider {
    width: 40px;
    height: 3px;
    background: var(--color-accent);
    margin: 12px 0 16px;
    border-radius: 2px;
}
.info-card__text {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
}
.info-card__link {
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary-light);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.info-card__link:hover {
    color: var(--color-accent);
    gap: 10px;
}

/* ============================================
   QUALITY BANNER
   ============================================ */
.quality-banner {
    background: var(--color-primary-dark);
    color: var(--color-text-inverse);
    padding: 60px 0;
    text-align: center;
}
.quality-banner h2 {
    color: #fff;
    margin-bottom: 16px;
}
.quality-banner p {
    max-width: 700px;
    margin: 0 auto 28px;
    color: rgba(255,255,255,0.75);
    font-size: 1.05rem;
}

/* ============================================
   PRODUCTS LIST
   ============================================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
}
.product-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--color-border-light);
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}
.product-card__image {
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.product-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.product-card__image-placeholder {
    color: rgba(255,255,255,0.25);
    font-size: 2.5rem;
    font-family: var(--font-heading);
}
.product-card__body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.product-card__name {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--color-primary-dark);
}
.product-card__desc {
    color: var(--color-text-light);
    font-size: 0.92rem;
    line-height: 1.65;
    flex: 1;
    margin-bottom: 18px;
}
.product-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border-light);
}
.product-card__badges {
    display: flex;
    gap: 6px;
}
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.badge--sds {
    background: #eaf2e3;
    color: #3d7a1c;
}
.badge--tds {
    background: #e3ecf5;
    color: #1c5a9e;
}

/* ============================================
   PRODUCT DETAIL
   ============================================ */
.product-detail {
    padding: 20px 0 60px;
    background: var(--color-bg-alt);
}
.product-detail__header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
    margin-bottom: 50px;
}
.product-detail__image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    min-height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-detail__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.product-detail__image-placeholder {
    color: rgba(255,255,255,0.2);
    font-size: 4rem;
    font-family: var(--font-heading);
}
.product-detail__info h1 {
    margin-bottom: 16px;
}
.product-detail__divider {
    width: 60px;
    height: 3px;
    background: var(--color-accent);
    margin-bottom: 20px;
    border-radius: 2px;
}
.product-detail__description {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 32px;
}
.product-detail__documents {
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: 24px;
    border: 1px solid var(--color-border);
}
.product-detail__documents h3 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--color-primary-dark);
}
.doc-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.doc-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.92rem;
    transition: all 0.2s;
}
.doc-link:hover {
    border-color: var(--color-primary-light);
    color: var(--color-primary);
    background: #f8faff;
    transform: translateX(4px);
}
.doc-link__icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}
.doc-link__icon--sds { background: #c0392b; }
.doc-link__icon--tds { background: var(--color-primary-light); }
.doc-link__info {
    flex: 1;
}
.doc-link__title {
    font-weight: 600;
    font-size: 0.92rem;
}
.doc-link__subtitle {
    font-size: 0.78rem;
    color: var(--color-text-light);
}
.doc-link__arrow {
    color: var(--color-text-light);
    transition: transform 0.2s;
}
.doc-link:hover .doc-link__arrow {
    transform: translateX(3px);
    color: var(--color-primary);
}

/* Breadcrumb */
.breadcrumb {
    padding: 16px 0;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--color-text);
}
.breadcrumb a {
    color: var(--color-primary);
    font-weight: 600;
}
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb__sep { margin: 0 8px; color: var(--color-text-light); }

/* ============================================
   FAQ PAGE
   ============================================ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background: #fff;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    transition: box-shadow 0.2s;
}
.faq-item:hover {
    box-shadow: var(--shadow-sm);
}
.faq-item__question {
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-primary-dark);
    user-select: none;
}
.faq-item__question:hover {
    color: var(--color-primary-light);
}
.faq-item__toggle {
    font-size: 1.4rem;
    color: var(--color-accent);
    flex-shrink: 0;
    transition: transform 0.3s;
    font-weight: 300;
}
.faq-item.active .faq-item__toggle {
    transform: rotate(45deg);
}
.faq-item__answer {
    display: none;
    padding: 0 24px 20px;
    color: var(--color-text-light);
    line-height: 1.75;
    font-size: 0.95rem;
    border-top: 1px solid var(--color-border-light);
    padding-top: 16px;
}
.faq-item.active .faq-item__answer {
    display: block;
}

/* ============================================
   ABOUT / WHAT IS EPOXY (Content Pages)
   ============================================ */
.content-page {
    padding: 60px 0 80px;
}
.content-page__inner {
    max-width: 800px;
    margin: 0 auto;
}
.content-page__inner h1 {
    margin-bottom: 12px;
}
.content-page__inner .divider {
    width: 60px;
    height: 3px;
    background: var(--color-accent);
    margin-bottom: 32px;
    border-radius: 2px;
}
.content-page__inner p {
    margin-bottom: 20px;
    font-size: 1.05rem;
    line-height: 1.8;
}
.content-page__inner h2 {
    margin-top: 40px;
    margin-bottom: 16px;
    font-size: 1.6rem;
}
.content-page__inner h3 {
    margin-top: 28px;
    margin-bottom: 12px;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}
.contact-block {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border-light);
}
.contact-block__icon {
    width: 50px;
    height: 50px;
    background: var(--color-accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.3rem;
}
.contact-block h3 {
    margin-bottom: 6px;
}
.contact-block__role {
    color: var(--color-text-light);
    font-size: 0.88rem;
    margin-bottom: 16px;
}
.contact-block__detail {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 0.95rem;
    color: var(--color-text);
}
.contact-block__detail a {
    color: var(--color-primary-light);
}
.contact-block__detail a:hover {
    color: var(--color-accent);
}

/* ============================================
   PAGE HEADER (for inner pages)
   ============================================ */
.page-header {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    padding: 50px 0 45px;
    position: relative;
}
.page-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-accent);
}
.page-header h1 {
    color: #fff;
    font-size: 2.2rem;
    text-align: center;
}
.page-header p {
    color: rgba(255,255,255,0.7);
    text-align: center;
    margin-top: 10px;
    font-size: 1.05rem;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-bg-dark);
    color: rgba(255,255,255,0.65);
    padding: 32px 0 0;
}
.footer__inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    align-items: end;
}
.footer__brand h3 {
    font-family: var(--font-heading);
    color: #fff;
    font-size: 1.3rem;
    margin-bottom: 12px;
}
.footer__brand h3 span {
    color: var(--color-accent);
}
.footer__brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 300px;
}
.footer h4 {
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}
.footer__links {
    list-style: none;
}
.footer__links li { margin-bottom: 6px; }
.footer__links a {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    transition: color 0.2s;
}
.footer__links a:hover { color: var(--color-accent); }

.footer__bottom {
    padding: 14px 0;
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.4);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 992px) {
    .info-cards { grid-template-columns: 1fr; gap: 24px; }
    .product-detail__header { grid-template-columns: 1fr; gap: 30px; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer__inner { grid-template-columns: 1fr; gap: 30px; }
    h1 { font-size: 2.2rem; }
    .hero__title { font-size: 2.5rem; }
}

@media (max-width: 768px) {
    .nav { display: none; }
    .nav.active { 
        display: flex;
        flex-direction: column;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-primary-dark);
        padding: 16px;
        box-shadow: var(--shadow-lg);
    }
    .nav.active .nav__dropdown-menu {
        position: static;
        box-shadow: none;
        background: rgba(255,255,255,0.05);
        border-radius: var(--radius-sm);
        margin-top: 4px;
    }
    .nav.active .nav__dropdown-menu a {
        color: rgba(255,255,255,0.7);
    }
    .nav-toggle { display: block; }

    .hero { padding: 60px 0 50px; }
    .hero__title { font-size: 2rem; }
    .hero__subtitle { font-size: 1rem; }

    .section { padding: 50px 0; }
    .products-grid { grid-template-columns: 1fr; }
}


/* ============================================
   PRODUCT DETAIL — SIDEBAR LAYOUT
   Tabs left, chart + downloads right
   ============================================ */

/* Banner image — removed, image now in sidebar */

/* Title block */
.product-detail__title-block {
    margin-bottom: 20px;
    padding-top: 0;
}
.product-detail__title-block h1 {
    margin-bottom: 8px;
}

/* Two-column layout */
.product-detail__layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 36px;
    align-items: start;
}

/* Main content (left) */
.product-detail__main {
    min-width: 0;
}

/* Product Overview */
.product-overview {
    margin-bottom: 20px;
    background: #fff;
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-sm);
}
.product-overview__content {
    font-size: 0.98rem;
    line-height: 1.8;
    color: var(--color-text);
}

/* Tabs navigation */
.product-tabs {
    margin-bottom: 20px;
}
.product-tabs__nav {
    display: flex;
    gap: 0;
    border-bottom: 3px solid var(--color-border);
}
.product-tabs__btn {
    padding: 12px 28px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-bottom: none;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text-light);
    cursor: pointer;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    top: 3px;
}
.product-tabs__btn:hover {
    color: var(--color-primary);
    background: #fff;
}
.product-tabs__btn--active {
    background: #fff;
    color: var(--color-primary-dark);
    border-color: var(--color-border);
    border-bottom: 3px solid #fff;
}
.product-tabs__btn--active::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-accent);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

/* Tab panels */
.product-tabs__panel {
    display: none;
    padding: 28px;
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    background: #fff;
    max-height: 600px;
    overflow-y: auto;
    box-shadow: var(--shadow-sm);
}
.product-tabs__panel--active {
    display: block;
}

/* Sheet content styling */
.product-sheet-content {
    font-size: 0.92rem;
    line-height: 1.85;
    color: var(--color-text);
}
.product-sheet-content strong {
    color: var(--color-primary-dark);
}
.product-sheet-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 0.88rem;
}
.product-sheet-content table th,
.product-sheet-content table td {
    padding: 8px 14px;
    text-align: left;
    border: 1px solid var(--color-border);
}
.product-sheet-content table th {
    background: var(--color-primary-dark);
    color: #fff;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}
.product-sheet-content table tr:nth-child(even) {
    background: var(--color-bg-alt);
}

/* Disclaimer */
.product-disclaimer {
    margin-top: 20px;
    padding: 16px 20px;
    background: #fff;
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-border);
    border: 1px solid var(--color-border-light);
    border-left: 3px solid var(--color-border);
}
.product-disclaimer p {
    font-size: 0.75rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin: 0;
}

/* ============================================
   ITEM NUMBERS
   ============================================ */
.item-numbers {
    margin-bottom: 20px;
    background: #fff;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.item-numbers__header {
    padding: 14px 24px;
    background: var(--color-primary-dark);
}
.item-numbers__header h3 {
    font-size: 0.95rem;
    margin: 0;
    color: #fff;
    font-family: var(--font-body);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.item-numbers__table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}
.item-numbers__table thead th {
    padding: 10px 24px;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-light);
    background: var(--color-bg-alt);
    border-bottom: 2px solid var(--color-border);
}
.item-numbers__table tbody td {
    padding: 12px 24px;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-light);
}
.item-numbers__table tbody tr:nth-child(even) {
    background: var(--color-bg-alt);
}
.item-numbers__row {
    cursor: default;
    transition: background 0.15s ease;
}
.item-numbers__row[data-variant-image] {
    cursor: pointer;
}
.item-numbers__row:hover {
    background: rgba(42, 90, 140, 0.06);
}
.item-numbers__row:last-child td {
    border-bottom: none;
}

/* ============================================
   SIDEBAR
   ============================================ */
.product-detail__sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: sticky;
    top: 96px;
}

/* Sidebar card */
.sidebar-card {
    background: #fff;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.sidebar-card--dark {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}
.sidebar-card__header {
    padding: 14px 18px;
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border-light);
}
.sidebar-card__header h3 {
    font-size: 0.95rem;
    margin: 0;
    color: var(--color-primary-dark);
}
.sidebar-card--dark .sidebar-card__header {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.1);
}
.sidebar-card__body {
    padding: 16px 18px;
}

/* Chart image in sidebar */
.sidebar-chart-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-sm);
}

.sidebar-product-img {
    width: 100%;
    height: 280px;
    display: block;
    object-fit: contain;
    background: #fff;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

/* Chart placeholder */
.sidebar-card__body--placeholder {
    text-align: center;
    padding: 30px 18px;
    color: var(--color-text-light);
}
.sidebar-card__body--placeholder span {
    font-size: 2rem;
    display: block;
    margin-bottom: 8px;
}
.sidebar-card__body--placeholder p {
    font-size: 0.85rem;
    margin: 0;
}

/* Sidebar doc links */
.sidebar-doc-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.sidebar-doc-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    text-decoration: none;
    transition: all 0.2s;
}
.sidebar-doc-link:hover {
    border-color: var(--color-primary-light);
    background: #f0f5ff;
    color: var(--color-primary);
    transform: translateX(2px);
}
.sidebar-doc-link__icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.68rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}
.sidebar-doc-link__icon--tds { background: var(--color-primary-light); }
.sidebar-doc-link__icon--sds { background: #c0392b; }
.sidebar-doc-link__info {
    flex: 1;
    min-width: 0;
}
.sidebar-doc-link__title {
    font-weight: 600;
    font-size: 0.85rem;
    line-height: 1.3;
}
.sidebar-doc-link__sub {
    font-size: 0.72rem;
    color: var(--color-text-light);
}
.sidebar-doc-link__arrow {
    color: var(--color-text-light);
    font-size: 0.9rem;
    transition: transform 0.2s;
}
.sidebar-doc-link:hover .sidebar-doc-link__arrow {
    transform: translateY(2px);
    color: var(--color-primary);
}

/* Responsive: stack on mobile */
@media (max-width: 992px) {
    .product-detail__layout {
        grid-template-columns: 1fr;
    }
    .product-detail__sidebar {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
    }
    .product-detail__sidebar > * {
        flex: 1;
        min-width: 250px;
    }
}
@media (max-width: 768px) {
    .product-tabs__btn {
        padding: 10px 16px;
        font-size: 0.8rem;
    }
    .product-tabs__panel {
        padding: 18px;
        max-height: 400px;
    }
    .product-detail__sidebar {
        flex-direction: column;
    }
    .product-detail__sidebar > * {
        min-width: 0;
    }
}

/* Replace the old hover rule */
.nav__dropdown:hover .nav__dropdown-menu {
    display: none;
}
.nav__dropdown.open .nav__dropdown-menu {
    display: block;
}

.product-detail__short-desc {
    font-size: 1.25rem;
    color: var(--color-text);
    font-weight: 400;
    margin-top: 8px;
    margin-bottom: 4px;
    line-height: 1.5;
}

/* Logo image in header */
.header__logo-img {
    height: 60px;
    width: auto;
}


.footer__byline {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: rgb(255, 255, 255);
}


.hero .container {
    position: relative;
    z-index: 1;
}

.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero__content {
    position: relative;
    z-index: 1;
}

.info-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 0;
}