/* ========================================
   Hitachi Engine Cushion — Industrial Red/Navy Design
   SEO-Optimized, Modern B2B Layout
   ======================================== */

:root {
    --hec-dark:        #0F172A;
    --hec-dark2:       #1E293B;
    --hec-dark3:       #273549;
    --hec-red:         #DC2626;
    --hec-red-dark:    #B91C1C;
    --hec-red-light:   #EF4444;
    --hec-amber:       #D97706;
    --hec-amber-light: #F59E0B;
    --text-dark:       #0F172A;
    --text-mid:        #334155;
    --text-light:      #64748B;
    --text-muted:      #94A3B8;
    --bg-white:        #FFFFFF;
    --bg-light:        #F8FAFC;
    --bg-gray:         #EEF2F6;
    --border:          #E2E8F0;
    --border-light:    #F1F5F9;
    --shadow-sm:       0 1px 4px rgba(15,23,42,0.07), 0 1px 2px rgba(15,23,42,0.05);
    --shadow-md:       0 4px 18px rgba(15,23,42,0.10);
    --shadow-lg:       0 12px 40px rgba(15,23,42,0.16);
    --shadow-red:      0 4px 24px rgba(220,38,38,0.28);
    --transition:      all 0.26s cubic-bezier(0.4,0,0.2,1);
    --radius:          10px;
    --radius-lg:       18px;
    --container:       1300px;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; -webkit-font-smoothing:antialiased; }
body {
    font-family: 'Inter','Segoe UI',system-ui,-apple-system,sans-serif;
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-dark);
    background: var(--bg-white);
}
h1,h2,h3,h4,h5,h6 { font-weight:700; line-height:1.25; color:var(--hec-dark); margin-bottom:0.9rem; }
h1 { font-size:2.6rem; }
h2 { font-size:2rem; }
h3 { font-size:1.45rem; }
h4 { font-size:1.1rem; font-weight:600; }
p  { margin-bottom:1.2rem; color:var(--text-mid); line-height:1.8; }
a  { color:var(--hec-red); text-decoration:none; transition:var(--transition); }
a:hover { color:var(--hec-red-dark); }
ul,ol { padding-left:1.5rem; margin-bottom:1.2rem; }
li { margin-bottom:0.45rem; color:var(--text-mid); }
strong { color:var(--text-dark); font-weight:600; }
img { max-width:100%; height:auto; }

/* ===== ACCENT TOP STRIPE ===== */
.top-stripe {
    height: 3px;
    background: linear-gradient(90deg, var(--hec-red-dark) 0%, var(--hec-red) 50%, var(--hec-amber) 100%);
}

/* ===== TOP UTILITY BAR ===== */
.top-bar {
    background: var(--hec-dark);
    padding: 0.4rem 1.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.top-bar-inner {
    max-width: var(--container);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}
.top-bar a { color: var(--text-muted); }
.top-bar a:hover { color: var(--hec-red-light); }

/* ===== HEADER ===== */
header {
    background: #fff;
    padding: 0.75rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.header-inner {
    max-width: var(--container);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}
.logo-wrap { display:flex; align-items:center; gap:0.75rem; text-decoration:none; flex-shrink:0; }
.logo-icon  { width:48px; height:48px; flex-shrink:0; }
.logo-text  { display:flex; flex-direction:column; gap:0.05rem; }
.logo-text .brand-name { font-size:1.05rem; font-weight:800; color:var(--hec-dark); letter-spacing:0.02em; line-height:1.15; }
.logo-text .brand-tag  { font-size:0.65rem; color:var(--hec-red); font-weight:600; letter-spacing:0.09em; text-transform:uppercase; }

/* Main nav */
.main-nav { display:flex; align-items:center; gap:0; flex:1; justify-content:center; }
.nav-item  { position:relative; }
.nav-link  {
    display:block; padding:0.55rem 0.9rem;
    font-size:0.88rem; font-weight:600; color:var(--text-dark);
    white-space:nowrap; transition:var(--transition);
    position:relative;
}
.nav-link::after {
    content:''; position:absolute; bottom:0; left:0.9rem; right:0.9rem;
    height:2px; background:var(--hec-red); transform:scaleX(0);
    transition:transform 0.22s ease; transform-origin:left;
}
.nav-link:hover, .nav-link.active { color:var(--hec-red); }
.nav-link:hover::after, .nav-link.active::after { transform:scaleX(1); }

/* Dropdown */
.nav-dropdown {
    display:none; position:absolute; top:100%; left:0;
    background:#fff; min-width:210px;
    border:1px solid var(--border); border-radius:var(--radius);
    box-shadow:var(--shadow-lg); padding:0.4rem 0; z-index:200;
    border-top:2px solid var(--hec-red);
}
.nav-item.has-dropdown:hover .nav-dropdown { display:block; }
.nav-dropdown a {
    display:block; padding:0.55rem 1.1rem;
    font-size:0.85rem; font-weight:500; color:var(--text-mid);
    transition:var(--transition);
}
.nav-dropdown a:hover { background:var(--bg-light); color:var(--hec-red); padding-left:1.4rem; }

/* Header CTA buttons */
.header-cta { display:flex; align-items:center; gap:0.6rem; flex-shrink:0; }
.btn-header-phone, .btn-header-wa {
    display:flex; align-items:center; gap:0.4rem;
    padding:0.5rem 1rem; border-radius:50px;
    font-size:0.82rem; font-weight:700; transition:var(--transition);
}
.btn-header-phone { background:var(--hec-dark); color:#fff; }
.btn-header-phone:hover { background:var(--hec-red); color:#fff; box-shadow:var(--shadow-red); }
.btn-header-wa { background:#25D366; color:#fff; }
.btn-header-wa:hover { background:#128C7E; color:#fff; }
.btn-icon { width:16px; height:16px; flex-shrink:0; }

/* Mobile hamburger */
.nav-toggle { display:none; background:none; border:none; cursor:pointer; padding:0.3rem; }
.nav-toggle span { display:block; width:24px; height:2px; background:var(--hec-dark); margin:5px 0; transition:var(--transition); }

/* ===== HERO ===== */
.hero {
    background: linear-gradient(135deg, var(--hec-dark) 0%, #1a2e4a 55%, #1e3a5f 100%);
    padding: 5rem 1.5rem;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content:'';
    position:absolute; inset:0;
    background-image: radial-gradient(circle at 20% 50%, rgba(220,38,38,0.08) 0%, transparent 60%),
                      radial-gradient(circle at 80% 30%, rgba(217,119,6,0.06) 0%, transparent 50%);
    pointer-events:none;
}
.hero::after {
    content:'';
    position:absolute; top:0; right:0; bottom:0;
    width:50%;
    background-image: repeating-linear-gradient(
        -45deg,
        transparent, transparent 40px,
        rgba(255,255,255,0.015) 40px, rgba(255,255,255,0.015) 80px
    );
    pointer-events:none;
}
.hero-inner {
    max-width: var(--container);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 3.5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}
.hero-badge {
    display:inline-flex; align-items:center; gap:0.5rem;
    background:rgba(220,38,38,0.15); border:1px solid rgba(220,38,38,0.35);
    color:#f87171; padding:0.38rem 0.9rem; border-radius:50px;
    font-size:0.8rem; font-weight:600; margin-bottom:1.2rem;
}
.hero h1 { font-size:3rem; color:#fff; margin-bottom:1rem; }
.hero h1 span { color:var(--hec-red-light); }
.hero-desc { font-size:1.05rem; color:#CBD5E1; margin-bottom:1.8rem; max-width:620px; }
.hero-stats { display:flex; gap:2rem; margin-bottom:2rem; }
.hero-stat-num { font-size:2rem; font-weight:800; color:var(--hec-red-light); line-height:1; }
.hero-stat-label { font-size:0.78rem; color:#94A3B8; margin-top:0.25rem; font-weight:500; text-transform:uppercase; letter-spacing:0.06em; }
.hero-actions { display:flex; gap:0.8rem; margin-bottom:2rem; flex-wrap:wrap; }
.btn-primary {
    display:inline-flex; align-items:center; gap:0.5rem;
    background:var(--hec-red); color:#fff;
    padding:0.75rem 1.6rem; border-radius:50px;
    font-size:0.9rem; font-weight:700; transition:var(--transition);
    box-shadow: var(--shadow-red);
}
.btn-primary:hover { background:var(--hec-red-dark); color:#fff; transform:translateY(-1px); box-shadow:0 6px 28px rgba(220,38,38,0.4); }
.btn-secondary {
    display:inline-flex; align-items:center; gap:0.5rem;
    background:rgba(255,255,255,0.1); color:#fff;
    border:1px solid rgba(255,255,255,0.25);
    padding:0.75rem 1.6rem; border-radius:50px;
    font-size:0.9rem; font-weight:600; transition:var(--transition);
}
.btn-secondary:hover { background:rgba(255,255,255,0.2); color:#fff; }

/* Hero search */
.hero-search { max-width:520px; }
.search-wrap {
    display:flex; background:rgba(255,255,255,0.08);
    border:1px solid rgba(255,255,255,0.2); border-radius:50px;
    overflow:hidden; transition:var(--transition);
}
.search-wrap:focus-within { background:rgba(255,255,255,0.14); border-color:var(--hec-red); }
.search-input {
    flex:1; background:none; border:none; outline:none;
    padding:0.7rem 1.2rem; font-size:0.88rem; color:#fff;
}
.search-input::placeholder { color:#64748B; }
.search-btn {
    background:var(--hec-red); border:none; cursor:pointer;
    padding:0.7rem 1.3rem; color:#fff; display:flex; align-items:center; gap:0.4rem;
    font-size:0.85rem; font-weight:600; transition:var(--transition);
}
.search-btn:hover { background:var(--hec-red-dark); }
.search-btn svg { width:18px; height:18px; }
#searchResults {
    margin-top:0.6rem; background:rgba(255,255,255,0.07);
    border-radius:var(--radius); overflow:hidden;
    border:1px solid rgba(255,255,255,0.1);
}
#searchResults a {
    display:flex; align-items:center; gap:0.8rem;
    padding:0.7rem 1rem; color:#CBD5E1; font-size:0.85rem;
    border-bottom:1px solid rgba(255,255,255,0.07); transition:var(--transition);
}
#searchResults a:last-child { border-bottom:none; }
#searchResults a:hover { background:rgba(220,38,38,0.15); color:#fff; }
#searchResults .r-part { background:rgba(220,38,38,0.3); color:#f87171; padding:0.15rem 0.5rem; border-radius:4px; font-size:0.78rem; font-weight:600; }

/* Hero side card */
.hero-card {
    background:rgba(255,255,255,0.06);
    border:1px solid rgba(255,255,255,0.12);
    border-radius:var(--radius-lg);
    padding:1.5rem;
    backdrop-filter:blur(10px);
}
.hero-card-title { font-size:0.78rem; font-weight:700; color:#94A3B8; text-transform:uppercase; letter-spacing:0.1em; margin-bottom:1rem; }
.hero-part-list { list-style:none; padding:0; margin:0; }
.hero-part-list li { display:flex; align-items:center; gap:0.7rem; padding:0.5rem 0; border-bottom:1px solid rgba(255,255,255,0.07); }
.hero-part-list li:last-child { border-bottom:none; }
.part-chip {
    background:rgba(220,38,38,0.2); color:#f87171;
    padding:0.18rem 0.55rem; border-radius:5px; font-size:0.76rem; font-weight:700;
    font-family:monospace; white-space:nowrap; flex-shrink:0;
}
.part-name { font-size:0.83rem; color:#CBD5E1; }

/* ===== TRUST BAR ===== */
.trust-bar {
    background: var(--hec-dark2);
    padding: 0.85rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.06);
}
.trust-bar-inner {
    max-width: var(--container);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
}
.trust-item {
    display:flex; align-items:center; gap:0.5rem;
    font-size:0.8rem; font-weight:600; color:#CBD5E1;
}
.trust-dot {
    width:6px; height:6px; border-radius:50%; background:var(--hec-red-light);
    flex-shrink:0;
}

/* ===== CONTAINER ===== */
.container { max-width:var(--container); margin:0 auto; }

/* ===== SECTION HEADING ===== */
.section-heading { text-align:center; max-width:700px; margin:0 auto 3rem; }
.section-label {
    display:inline-block; background:rgba(220,38,38,0.1); color:var(--hec-red);
    border:1px solid rgba(220,38,38,0.25); padding:0.3rem 0.9rem;
    border-radius:50px; font-size:0.75rem; font-weight:700;
    text-transform:uppercase; letter-spacing:0.1em; margin-bottom:0.8rem;
}

/* ===== FEATURES SECTION ===== */
.features-section { padding:5rem 1.5rem; background:var(--bg-light); }
.features-grid {
    display:grid; grid-template-columns:repeat(3,1fr); gap:1.5rem;
}
.feature-card {
    background:#fff; border-radius:var(--radius-lg);
    padding:1.8rem; border:1px solid var(--border);
    transition:var(--transition); position:relative; overflow:hidden;
}
.feature-card::before {
    content:''; position:absolute; top:0; left:0; right:0;
    height:3px; background:var(--hec-red);
    transform:scaleX(0); transform-origin:left; transition:var(--transition);
}
.feature-card:hover { transform:translateY(-3px); box-shadow:var(--shadow-lg); border-color:transparent; }
.feature-card:hover::before { transform:scaleX(1); }
.feature-num {
    font-size:2.5rem; font-weight:900; color:var(--hec-red);
    line-height:1; margin-bottom:1rem; opacity:0.15;
    position:absolute; top:1rem; right:1.2rem;
}
.feature-icon { font-size:2rem; margin-bottom:0.9rem; }

/* ===== CATEGORIES SECTION ===== */
.categories-section { padding:5rem 1.5rem; background:#fff; }
.categories-grid {
    display:grid; grid-template-columns:repeat(3,1fr); gap:1.5rem;
}
.category-card {
    display:block; background:#fff; border-radius:var(--radius-lg);
    border:1px solid var(--border); overflow:hidden;
    transition:var(--transition); text-decoration:none;
}
.category-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-lg); border-color:var(--hec-red); }
.cat-img-wrap {
    position:relative; height:185px; overflow:hidden;
    background:linear-gradient(135deg, var(--hec-dark) 0%, var(--hec-dark3) 100%);
}
.cat-img-wrap img {
    width:100%; height:100%; object-fit:cover;
    transition:transform 0.4s ease;
}
.category-card:hover .cat-img-wrap img { transform:scale(1.04); }
.cat-badge {
    position:absolute; top:0.75rem; right:0.75rem;
    background:var(--hec-red); color:#fff;
    padding:0.2rem 0.65rem; border-radius:50px;
    font-size:0.72rem; font-weight:700; text-transform:uppercase; letter-spacing:0.06em;
}
.cat-body { padding:1.4rem; }
.cat-body h3 { font-size:1.1rem; margin-bottom:0.5rem; color:var(--hec-dark); }
.cat-body p { font-size:0.87rem; margin-bottom:1rem; color:var(--text-light); line-height:1.6; }
.cat-link {
    display:inline-flex; align-items:center; gap:0.4rem;
    font-size:0.83rem; font-weight:700; color:var(--hec-red);
}
.cat-link svg { width:16px; height:16px; transition:transform 0.2s; }
.category-card:hover .cat-link svg { transform:translateX(3px); }

/* ===== FEATURED PRODUCTS SECTION ===== */
.products-section { padding:5rem 1.5rem; background:var(--bg-light); }
.products-grid {
    display:grid; grid-template-columns:repeat(4,1fr); gap:1.2rem;
}
.product-card {
    background:#fff; border-radius:var(--radius);
    border:1px solid var(--border); overflow:hidden;
    transition:var(--transition);
    display:flex; flex-direction:column;
}
.product-card:hover { transform:translateY(-3px); box-shadow:var(--shadow-md); border-color:var(--hec-red); }
.product-card a { text-decoration:none; color:inherit; display:flex; flex-direction:column; height:100%; }
.prod-img-wrap { height:150px; overflow:hidden; background:var(--bg-gray); flex-shrink:0; }
.prod-img-wrap img { width:100%; height:100%; object-fit:cover; transition:transform 0.35s; }
.product-card:hover .prod-img-wrap img { transform:scale(1.06); }
.prod-body { padding:1rem; flex:1; display:flex; flex-direction:column; }
.prod-part { font-size:0.72rem; font-weight:700; color:var(--hec-red); text-transform:uppercase; letter-spacing:0.06em; margin-bottom:0.25rem; }
.prod-name { font-size:0.9rem; font-weight:700; color:var(--hec-dark); margin-bottom:0.3rem; }
.prod-brand { font-size:0.78rem; color:var(--text-light); margin-top:auto; padding-top:0.5rem; }
.prod-brand span { background:var(--bg-gray); padding:0.15rem 0.5rem; border-radius:4px; font-weight:600; }

/* ===== CTA STRIP ===== */
.cta-strip {
    background:linear-gradient(135deg, var(--hec-red-dark) 0%, var(--hec-red) 100%);
    padding:4rem 1.5rem; text-align:center;
}
.cta-strip .container { max-width:700px; }
.cta-strip h2 { color:#fff; font-size:2rem; margin-bottom:0.8rem; }
.cta-strip p { color:rgba(255,255,255,0.85); margin-bottom:1.8rem; }
.btn-white {
    display:inline-flex; align-items:center; gap:0.5rem;
    background:#fff; color:var(--hec-red);
    padding:0.8rem 2rem; border-radius:50px;
    font-size:0.9rem; font-weight:700; transition:var(--transition);
    box-shadow:0 4px 20px rgba(0,0,0,0.2);
}
.btn-white:hover { background:var(--hec-dark); color:#fff; transform:translateY(-2px); }

/* ===== ARTICLES SECTION ===== */
.articles-section { padding:5rem 1.5rem; background:#fff; }
.articles-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:1.5rem; }
.article-card {
    background:#fff; border-radius:var(--radius-lg);
    border:1px solid var(--border); overflow:hidden;
    transition:var(--transition);
}
.article-card:hover { transform:translateY(-3px); box-shadow:var(--shadow-md); }
.article-card a { text-decoration:none; color:inherit; }
.article-img { height:185px; overflow:hidden; background:var(--bg-gray); }
.article-img img { width:100%; height:100%; object-fit:cover; transition:transform 0.35s; }
.article-card:hover .article-img img { transform:scale(1.04); }
.article-body { padding:1.4rem; }
.article-tag {
    display:inline-block; background:rgba(220,38,38,0.08); color:var(--hec-red);
    padding:0.2rem 0.6rem; border-radius:4px; font-size:0.72rem; font-weight:700;
    text-transform:uppercase; letter-spacing:0.06em; margin-bottom:0.7rem;
}
.article-body h3 { font-size:1.05rem; margin-bottom:0.5rem; color:var(--hec-dark); }
.article-body h3 a { color:inherit; }
.article-body h3 a:hover { color:var(--hec-red); }
.article-body p { font-size:0.87rem; color:var(--text-light); margin-bottom:0.8rem; }
.read-more { font-size:0.82rem; font-weight:700; color:var(--hec-red); display:inline-flex; align-items:center; gap:0.3rem; }

/* ===== BREADCRUMB ===== */
.breadcrumb { background:var(--bg-light); border-bottom:1px solid var(--border); padding:0.7rem 1.5rem; }
.breadcrumb-inner {
    max-width:var(--container); margin:0 auto;
    display:flex; align-items:center; gap:0.5rem; flex-wrap:wrap;
    font-size:0.8rem; color:var(--text-light);
}
.breadcrumb-inner a { color:var(--text-light); font-weight:500; }
.breadcrumb-inner a:hover { color:var(--hec-red); }
.breadcrumb-inner strong { color:var(--hec-dark); }
.breadcrumb-sep { color:var(--text-muted); font-size:0.75rem; }

/* ===== PAGE BANNER ===== */
.page-banner {
    background:linear-gradient(135deg, var(--hec-dark) 0%, #1a2e4a 100%);
    padding:3rem 1.5rem;
    border-bottom:3px solid var(--hec-red);
}
.page-banner-inner { max-width:var(--container); margin:0 auto; }
.page-banner .section-label { margin-bottom:0.6rem; }
.page-banner h1 { color:#fff; font-size:2.2rem; margin-bottom:0.5rem; }
.page-banner p { color:#CBD5E1; max-width:650px; }

/* ===== PRODUCT DETAIL LAYOUT ===== */
.product-detail-layout {
    max-width:var(--container); margin:0 auto;
    padding:2.5rem 1.5rem;
    display:grid;
    grid-template-columns:1fr 300px;
    gap:2.5rem;
    align-items:start;
}
.product-main { min-width:0; }
.content-block {
    background:#fff; border-radius:var(--radius-lg);
    border:1px solid var(--border); padding:2rem;
    margin-bottom:1.5rem;
}
.content-block h2 { font-size:1.4rem; margin-bottom:1rem; padding-bottom:0.75rem; border-bottom:2px solid var(--hec-red); display:inline-block; }
.product-title-area { margin-bottom:1.5rem; }
.product-part-badge {
    display:inline-block; background:var(--hec-dark);
    color:#fff; padding:0.45rem 1rem; border-radius:var(--radius);
    font-size:0.95rem; font-weight:800; letter-spacing:0.04em;
    margin-bottom:0.8rem; font-family:monospace;
}
.product-meta { display:flex; flex-wrap:wrap; gap:0.5rem; }
.product-meta-tag {
    background:var(--bg-light); border:1px solid var(--border);
    padding:0.25rem 0.7rem; border-radius:50px;
    font-size:0.76rem; font-weight:600; color:var(--text-mid);
}

/* Spec table */
.spec-table { width:100%; border-collapse:collapse; font-size:0.88rem; }
.spec-table thead th {
    background:var(--hec-dark); color:#fff; padding:0.7rem 1rem;
    text-align:left; font-size:0.8rem; text-transform:uppercase; letter-spacing:0.05em;
}
.spec-table tbody tr { border-bottom:1px solid var(--border-light); }
.spec-table tbody tr:nth-child(even) { background:var(--bg-light); }
.spec-table tbody td { padding:0.65rem 1rem; color:var(--text-mid); }
.spec-table tbody td:first-child { font-weight:600; color:var(--text-dark); }

/* FAQ */
.faq-item { border-bottom:1px solid var(--border); padding:1rem 0; }
.faq-item:last-child { border-bottom:none; }
.faq-q { font-weight:700; color:var(--hec-dark); margin-bottom:0.4rem; font-size:0.95rem; }
.faq-a { color:var(--text-mid); font-size:0.9rem; line-height:1.75; }

/* Related */
.related-block { margin-top:0.5rem; }
.related-grid { display:flex; flex-wrap:wrap; gap:0.6rem; margin-top:0.8rem; }
.related-item {
    background:var(--bg-light); border:1px solid var(--border);
    padding:0.4rem 0.9rem; border-radius:var(--radius);
    font-size:0.82rem; font-weight:600; color:var(--hec-dark);
    font-family:monospace; transition:var(--transition);
}
.related-item:hover { background:var(--hec-red); color:#fff; border-color:var(--hec-red); }

/* Sidebar */
.product-sidebar { position:sticky; top:90px; }
.sidebar-widget {
    background:#fff; border-radius:var(--radius-lg);
    border:1px solid var(--border);
    overflow:hidden; margin-bottom:1.2rem;
}
.widget-head {
    background:var(--hec-dark); color:#fff;
    padding:0.8rem 1.2rem; font-size:0.85rem;
    font-weight:700; text-transform:uppercase; letter-spacing:0.06em;
    border-left:3px solid var(--hec-red);
}
.widget-body { padding:1.2rem; }
.widget-body p { font-size:0.87rem; margin-bottom:1rem; }
.widget-cta {
    display:block; text-align:center; padding:0.7rem 1rem;
    border-radius:50px; font-size:0.86rem; font-weight:700;
    margin-bottom:0.6rem; transition:var(--transition);
}
.widget-cta-red { background:var(--hec-red); color:#fff; }
.widget-cta-red:hover { background:var(--hec-red-dark); color:#fff; box-shadow:var(--shadow-red); }
.widget-cta-wa { background:#25D366; color:#fff; }
.widget-cta-wa:hover { background:#128C7E; color:#fff; }
.widget-detail { font-size:0.78rem; color:var(--text-light); text-align:center; }
.cert-list { list-style:none; padding:0; margin:0; }
.cert-list li { display:flex; align-items:center; gap:0.6rem; font-size:0.84rem; color:var(--text-mid); padding:0.35rem 0; }
.cert-dot { width:8px; height:8px; border-radius:50%; background:var(--hec-red); flex-shrink:0; }

/* ===== CONTACT SECTION ===== */
.contact-section { padding:3rem 1.5rem 4rem; }
.contact-layout {
    max-width:var(--container); margin:0 auto;
    display:grid; grid-template-columns:1fr 1.5fr; gap:3rem;
}
.contact-info h2 { font-size:1.6rem; }
.contact-detail {
    display:flex; gap:1rem; align-items:flex-start;
    padding:1rem 0; border-bottom:1px solid var(--border);
}
.contact-detail:last-of-type { border-bottom:none; }
.contact-detail-icon {
    width:38px; height:38px; border-radius:50%;
    background:rgba(220,38,38,0.1); display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.contact-detail-icon svg { width:18px; height:18px; color:var(--hec-red); }
.contact-detail-text h4 { font-size:0.85rem; text-transform:uppercase; letter-spacing:0.06em; color:var(--text-light); margin-bottom:0.2rem; font-weight:600; }
.contact-detail-text a, .contact-detail-text span { font-size:0.95rem; color:var(--text-dark); font-weight:600; }
.contact-detail-text a:hover { color:var(--hec-red); }

/* Contact form */
.contact-form-wrap { background:var(--bg-light); border-radius:var(--radius-lg); padding:2rem; }
.contact-form-wrap h2 { font-size:1.5rem; margin-bottom:0.3rem; }
.contact-form-wrap p.sub { color:var(--text-light); font-size:0.87rem; margin-bottom:1.5rem; }
.form-honeypot { position:absolute; opacity:0; height:0; overflow:hidden; pointer-events:none; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.form-group { margin-bottom:1.2rem; }
.form-group label { display:block; font-size:0.82rem; font-weight:700; color:var(--text-dark); margin-bottom:0.4rem; }
.req { color:var(--hec-red); }
.form-control {
    width:100%; padding:0.7rem 1rem;
    border:1.5px solid var(--border); border-radius:var(--radius);
    font-size:0.9rem; color:var(--text-dark); background:#fff;
    transition:var(--transition); outline:none;
}
.form-control:focus { border-color:var(--hec-red); box-shadow:0 0 0 3px rgba(220,38,38,0.12); }
textarea.form-control { resize:vertical; min-height:120px; }
select.form-control { cursor:pointer; }
.btn-submit {
    display:inline-flex; align-items:center; gap:0.5rem;
    background:var(--hec-red); color:#fff;
    padding:0.8rem 2rem; border-radius:50px;
    font-size:0.9rem; font-weight:700; border:none; cursor:pointer;
    transition:var(--transition); box-shadow:var(--shadow-red);
}
.btn-submit:hover { background:var(--hec-red-dark); transform:translateY(-1px); }
.btn-submit:disabled { opacity:0.6; cursor:not-allowed; transform:none; }
.form-note { font-size:0.78rem; color:var(--text-light); margin-top:0.8rem; margin-bottom:0; }
.alert { padding:0.9rem 1.2rem; border-radius:var(--radius); margin-bottom:1rem; font-size:0.9rem; font-weight:500; }
.alert-success { background:#DCFCE7; color:#166534; border:1px solid #BBF7D0; }
.alert-error { background:#FEE2E2; color:#991B1B; border:1px solid #FECACA; }

/* ===== CATEGORY PAGE ===== */
.cat-page-layout { max-width:var(--container); margin:0 auto; padding:2.5rem 1.5rem; }
.cat-description { max-width:800px; margin-bottom:2.5rem; }
.cat-products-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:1.2rem; }

/* ===== PRODUCTS PAGE ===== */
.products-page { padding:2.5rem 1.5rem; max-width:var(--container); margin:0 auto; }
.products-filter-bar {
    display:flex; align-items:center; gap:1rem;
    margin-bottom:2rem; flex-wrap:wrap;
}
.filter-label { font-size:0.82rem; font-weight:700; color:var(--text-mid); }
.filter-chips { display:flex; gap:0.5rem; flex-wrap:wrap; }
.filter-chip {
    padding:0.35rem 0.9rem; border-radius:50px;
    font-size:0.8rem; font-weight:600;
    border:1.5px solid var(--border); color:var(--text-mid);
    cursor:pointer; transition:var(--transition); background:#fff;
}
.filter-chip:hover, .filter-chip.active { background:var(--hec-red); color:#fff; border-color:var(--hec-red); }
.products-full-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:1.2rem; }

/* ===== FOOTER ===== */
footer {
    background: var(--hec-dark);
    padding: 4rem 1.5rem 0;
    border-top: 3px solid var(--hec-red);
}
.footer-grid {
    max-width:var(--container); margin:0 auto;
    display:grid; grid-template-columns:2fr 1fr 1fr 1.3fr;
    gap:2.5rem; padding-bottom:3rem;
}
.footer-brand .logo-wrap .brand-name { color:#fff; }
.footer-brand .logo-wrap .brand-tag { color:var(--hec-red-light); }
.footer-brand p { font-size:0.85rem; color:#64748B; margin-top:1rem; line-height:1.75; }
.footer-col h4 { color:#fff; font-size:0.85rem; text-transform:uppercase; letter-spacing:0.08em; margin-bottom:1.2rem; font-weight:700; }
.footer-col a { display:block; font-size:0.85rem; color:#64748B; margin-bottom:0.5rem; transition:var(--transition); }
.footer-col a:hover { color:var(--hec-red-light); padding-left:4px; }
.footer-contact-item { display:flex; align-items:flex-start; gap:0.6rem; margin-bottom:0.7rem; }
.footer-contact-item span, .footer-contact-item a { font-size:0.84rem; color:#64748B; }
.footer-contact-item a:hover { color:var(--hec-red-light); }
.footer-bottom {
    max-width:var(--container); margin:0 auto;
    border-top:1px solid rgba(255,255,255,0.08);
    padding:1.2rem 0;
    display:flex; justify-content:space-between; align-items:center;
}
.footer-bottom p { font-size:0.8rem; color:#475569; margin:0; }
.footer-bottom a { font-size:0.8rem; color:#475569; }
.footer-bottom a:hover { color:var(--hec-red-light); }

/* ===== WHATSAPP FLOAT ===== */
.wa-float {
    position:fixed; bottom:1.8rem; right:1.8rem;
    width:56px; height:56px; border-radius:50%;
    background:#25D366; display:flex; align-items:center; justify-content:center;
    box-shadow:0 4px 24px rgba(37,211,102,0.5); z-index:900;
    transition:var(--transition);
}
.wa-float:hover { transform:scale(1.08); background:#128C7E; }
.wa-float svg { width:30px; height:30px; fill:#fff; }

/* ===== GUIDE / ARTICLE PAGES ===== */
.guide-layout {
    max-width:var(--container); margin:0 auto;
    padding:2.5rem 1.5rem;
    display:grid; grid-template-columns:1fr 280px; gap:2.5rem;
}
.guide-content h2 { font-size:1.5rem; color:var(--hec-dark); margin-top:2rem; padding-top:1.5rem; border-top:1px solid var(--border); }
.guide-content h2:first-child { margin-top:0; padding-top:0; border-top:none; }
.guide-sidebar { position:sticky; top:90px; }
.guide-toc { background:var(--bg-light); border-radius:var(--radius-lg); padding:1.5rem; border:1px solid var(--border); }
.guide-toc h4 { font-size:0.85rem; text-transform:uppercase; letter-spacing:0.08em; margin-bottom:1rem; color:var(--text-mid); }
.guide-toc a { display:block; font-size:0.85rem; color:var(--text-mid); padding:0.3rem 0; border-bottom:1px solid var(--border-light); }
.guide-toc a:hover { color:var(--hec-red); }
.part-links { margin-top:1.5rem; background:#fff; border:1px solid var(--border); border-radius:var(--radius-lg); overflow:hidden; }
.part-links-head { background:var(--hec-dark); color:#fff; padding:0.75rem 1rem; font-size:0.82rem; font-weight:700; text-transform:uppercase; letter-spacing:0.06em; }
.part-links a { display:flex; justify-content:space-between; align-items:center; padding:0.6rem 1rem; font-size:0.83rem; color:var(--text-mid); border-bottom:1px solid var(--border-light); font-family:monospace; font-weight:600; }
.part-links a:last-child { border-bottom:none; }
.part-links a:hover { background:var(--bg-light); color:var(--hec-red); }

/* ===== RESPONSIVE ===== */
@media (max-width:1100px) {
    .features-grid, .categories-grid { grid-template-columns:repeat(2,1fr); }
    .products-grid, .cat-products-grid, .products-full-grid { grid-template-columns:repeat(3,1fr); }
    .footer-grid { grid-template-columns:1fr 1fr; gap:2rem; }
    .guide-layout { grid-template-columns:1fr; }
    .guide-sidebar { position:static; }
}
@media (max-width:900px) {
    .hero-inner { grid-template-columns:1fr; }
    .hero-card { display:none; }
    .hero h1 { font-size:2.2rem; }
    .product-detail-layout { grid-template-columns:1fr; }
    .product-sidebar { position:static; }
    .contact-layout { grid-template-columns:1fr; }
    .articles-grid { grid-template-columns:repeat(2,1fr); }
}
@media (max-width:768px) {
    .main-nav, .header-cta { display:none; }
    .main-nav.open { display:flex; flex-direction:column; position:absolute; top:100%; left:0; right:0; background:#fff; border-top:1px solid var(--border); padding:1rem; box-shadow:var(--shadow-lg); z-index:999; }
    .nav-toggle { display:block; }
    h1 { font-size:1.9rem; }
    h2 { font-size:1.6rem; }
    .products-grid, .cat-products-grid, .products-full-grid { grid-template-columns:repeat(2,1fr); }
    .footer-grid { grid-template-columns:1fr; }
    .articles-grid { grid-template-columns:1fr; }
    .form-row { grid-template-columns:1fr; }
    .hero-stats { gap:1rem; flex-wrap:wrap; }
    .hero { padding:3.5rem 1.5rem; }
}
@media (max-width:480px) {
    .products-grid, .cat-products-grid, .products-full-grid { grid-template-columns:1fr 1fr; }
    .categories-grid { grid-template-columns:1fr; }
    .features-grid { grid-template-columns:1fr; }
    .hero h1 { font-size:1.75rem; }
}