/* ============================================
   ollaoscortina.com — Design System
   ============================================ */

:root {
  --primary: #e67e22;
  --primary-dark: #cf6d17;
  --secondary: #2c3e50;
  --secondary-light: #34495e;
  --bg: #fafafa;
  --bg-alt: #f0f0f0;
  --text: #333;
  --text-light: #666;
  --white: #fff;
  --border: #ddd;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,.08);
  --shadow-lg: 0 4px 20px rgba(0,0,0,.12);
  --max-w: 1200px;
  --transition: .2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1rem; }
.section { padding: 3rem 0; }
.section-alt { background: var(--bg-alt); }

/* ---- Typography ---- */
h1, h2, h3, h4 { color: var(--secondary); line-height: 1.25; }
h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: 1rem; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: .75rem; }
h3 { font-size: 1.25rem; margin-bottom: .5rem; }
p { margin-bottom: 1rem; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  min-height: 48px;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); color: var(--white); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-secondary { background: var(--secondary); color: var(--white); }
.btn-secondary:hover { background: var(--secondary-light); color: var(--white); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--white); }
.btn-whatsapp { background: #25d366; color: var(--white); }
.btn-whatsapp:hover { background: #1da851; color: var(--white); }
.btn-sm { padding: .5rem 1rem; font-size: .85rem; min-height: 40px; }

/* ---- Header ---- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  box-shadow: var(--shadow);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 1rem;
  max-width: var(--max-w);
  margin: 0 auto;
}
.header-logo img { height: 40px; width: auto; }
.header-nav { display: flex; align-items: center; gap: 1.5rem; list-style: none; }
.header-nav a { color: var(--secondary); font-weight: 500; font-size: .95rem; }
.header-nav a:hover, .header-nav a.active { color: var(--primary); }
.lang-switch { font-size: .85rem; letter-spacing: .02em; }
.lang-switch a { font-weight: 600; opacity: .55; }
.lang-switch a.active { opacity: 1; color: var(--primary); }
.header-cta { display: none; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  min-width: 48px;
  min-height: 48px;
  align-items: center;
  justify-content: center;
}
.hamburger span { display: block; width: 24px; height: 2px; background: var(--secondary); transition: var(--transition); }

/* ---- Hero ---- */
.hero {
  background: linear-gradient(135deg, rgba(44,62,80,.82) 0%, rgba(26,37,47,.88) 100%),
              url('/img/surtido.jpg') center/cover no-repeat;
  color: var(--white);
  padding: 6rem 1rem 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--bg);
  clip-path: ellipse(55% 100% at 50% 100%);
}
.hero h1 { color: var(--white); font-size: clamp(2rem, 5vw, 3.2rem); margin-bottom: .75rem; letter-spacing: -.02em; }
.hero .highlight { color: var(--primary); }
.hero p { font-size: 1.2rem; color: rgba(255,255,255,.85); max-width: 700px; margin: 0 auto 2rem; }
.hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero-badge {
  display: inline-block;
  background: rgba(230,126,34,.2);
  border: 1px solid rgba(230,126,34,.4);
  color: var(--primary);
  padding: .4rem 1.2rem;
  border-radius: 100px;
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

/* ---- Stats Bar ---- */
.stats-bar {
  position: relative;
  z-index: 2;
  margin-top: -2rem;
  padding: 0 1rem;
}
.stats-bar-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  max-width: 900px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 30px rgba(0,0,0,.12);
  overflow: hidden;
}
.stat-item {
  text-align: center;
  padding: 1.75rem 1rem;
  background: var(--white);
  transition: background var(--transition);
}
.stat-item:hover { background: var(--bg-alt); }
.stat-number {
  display: block;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: .35rem;
}
.stat-label {
  font-size: .8rem;
  color: var(--text-light);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* ---- Trust Bar ---- */
.trust-bar {
  background: var(--primary);
  color: var(--white);
  padding: .75rem 0;
}
.trust-bar-inner {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1rem;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .9rem;
  font-weight: 500;
  white-space: nowrap;
}
.trust-item svg { width: 20px; height: 20px; flex-shrink: 0; }

/* ---- Product Grid ---- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}
.product-group-heading {
  grid-column: 1 / -1;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--secondary);
  border-bottom: 2px solid var(--primary);
  padding-bottom: .4rem;
  margin-top: .5rem;
}
.product-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .3s ease, box-shadow .3s ease;
  position: relative;
}
.product-card:hover { transform: translateY(-6px); box-shadow: 0 12px 32px rgba(0,0,0,.14); }
.product-card-img {
  aspect-ratio: 1;
  overflow: hidden;
  background: linear-gradient(145deg, #f8f8f8 0%, #efefef 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  position: relative;
}
.product-card-img img { max-height: 200px; object-fit: contain; mix-blend-mode: multiply; transition: transform .3s ease; }
.product-card:hover .product-card-img img { transform: scale(1.05); }
.product-card-body { padding: 1.25rem 1rem; }
.product-card-body h3 { font-size: 1.05rem; margin-bottom: .25rem; }
.product-card-meta { font-size: .85rem; color: var(--text-light); margin-bottom: .75rem; }
.product-card-actions { display: flex; gap: .5rem; }

/* ---- Filter Pills ---- */
.filter-bar { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.5rem; }
.filter-pill {
  padding: .5rem 1rem;
  border-radius: 100px;
  border: 2px solid var(--border);
  background: var(--white);
  font-size: .85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}
.filter-pill:hover, .filter-pill.active {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--white);
}

/* ---- Specs Table ---- */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.specs-table thead { background: var(--secondary); color: var(--white); }
.specs-table th, .specs-table td { padding: .75rem 1rem; text-align: left; font-size: .9rem; }
.specs-table tbody tr:nth-child(even) { background: var(--bg-alt); }
.specs-table tbody tr:hover { background: #e8f4fd; }

/* ---- Features / Why Us ---- */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.feature-card {
  text-align: center;
  padding: 2.5rem 1.5rem 2rem;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: transform .3s ease, box-shadow .3s ease;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), #f5a623);
  opacity: 0;
  transition: opacity .3s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 1.25rem;
  background: linear-gradient(135deg, rgba(230,126,34,.12) 0%, rgba(230,126,34,.04) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-icon svg { width: 32px; height: 32px; color: var(--primary); }

/* ---- Category Cards ---- */
.category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.category-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
  transition: transform .3s ease, box-shadow .3s ease;
}
.category-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.category-card h3 { margin-bottom: .5rem; }
.category-card p { color: var(--text-light); font-size: .95rem; margin-bottom: 1rem; }

/* ---- Section Headers ---- */
.section-header { text-align: center; max-width: 650px; margin: 0 auto 2.5rem; }
.section-header p { color: var(--text-light); font-size: 1.05rem; }
.section-tag {
  display: inline-block;
  color: var(--primary);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: .5rem;
}

/* ---- FAQ ---- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 0;
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  color: var(--secondary);
  font-size: 1.05rem;
  gap: 1rem;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  padding: 0;
  min-height: 48px;
}
.faq-question::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
  color: var(--text-light);
  line-height: 1.7;
}
.faq-item.open .faq-answer { max-height: 500px; padding-top: .75rem; }

/* ---- Contact Form ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-weight: 500; margin-bottom: .35rem; font-size: .9rem; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .75rem 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: .95rem;
  font-family: inherit;
  transition: border-color var(--transition);
  min-height: 48px;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--primary); outline: none; }
.form-group textarea { min-height: 120px; resize: vertical; }
.contact-info-card {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.contact-detail { display: flex; align-items: flex-start; gap: .75rem; margin-bottom: 1.25rem; }
.contact-detail svg { width: 24px; height: 24px; color: var(--primary); flex-shrink: 0; margin-top: .2rem; }
.contact-detail strong { display: block; margin-bottom: .15rem; }
.contact-detail span { color: var(--text-light); font-size: .9rem; }
.success-msg {
  background: #d4edda;
  color: #155724;
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  display: none;
}
.success-msg.show { display: block; }

/* ---- Map ---- */
.map-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-top: 2rem;
}
.map-wrap iframe { width: 100%; height: 350px; border: 0; }

/* ---- Breadcrumbs ---- */
.breadcrumbs {
  padding: .75rem 0;
  font-size: .85rem;
  color: var(--text-light);
}
.breadcrumbs a { color: var(--text-light); }
.breadcrumbs a:hover { color: var(--primary); }
.breadcrumbs span { margin: 0 .35rem; }

/* ---- CTA Section ---- */
.cta-section {
  background: linear-gradient(135deg, var(--secondary) 0%, #1a252f 100%);
  color: var(--white);
  text-align: center;
  padding: 4rem 1rem;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 50px;
  background: var(--bg);
  clip-path: ellipse(55% 100% at 50% 0%);
}
.cta-section h2 { color: var(--white); font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
.cta-section p { color: rgba(255,255,255,.8); max-width: 600px; margin: 0 auto 2rem; font-size: 1.1rem; }

/* ---- Footer ---- */
.footer {
  background: var(--secondary);
  color: rgba(255,255,255,.8);
  padding: 3rem 0 1.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer h4 { color: var(--white); margin-bottom: 1rem; font-size: 1rem; }
.footer p { font-size: .9rem; margin-bottom: .5rem; }
.footer a { color: rgba(255,255,255,.7); font-size: .9rem; }
.footer a:hover { color: var(--primary); }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: .5rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: .85rem;
}

/* ---- Intro Section for category pages ---- */
.intro-section { max-width: 800px; }
.intro-section p { font-size: 1.05rem; color: var(--text-light); }

/* ---- Honeypot ---- */
.ohnohoney { position: absolute; left: -9999px; }

/* ---- Product Detail Page ---- */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}
.product-detail-img {
  background: var(--bg-alt);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  position: sticky;
  top: 5rem;
}
.product-detail-img img {
  max-width: 100%;
  height: auto;
  mix-blend-mode: multiply;
}
.product-detail-info h1 { font-size: clamp(1.5rem, 4vw, 2.2rem); margin-bottom: .25rem; }
.product-detail-cat { font-size: 1rem; color: var(--primary); font-weight: 600; margin-bottom: 1.5rem; }
.product-detail-section { margin-top: 1.5rem; }
.product-detail-section h2 { font-size: 1.15rem; margin-bottom: .75rem; color: var(--secondary); }
.product-detail-section ul { margin: 0 0 .5rem 1.2rem; line-height: 1.8; }
.text-sm { font-size: .85rem; color: var(--text-light); }
.measures-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: .75rem;
}
.measures-diagram {
  background: var(--white);
  border: 1px solid #e0e0e0;
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
  max-width: 480px;
}
.measures-diagram img { width: 100%; height: auto; }
.product-detail-cta {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

/* ---- Gallery Grid ---- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.gallery-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .3s ease, box-shadow .3s ease;
  position: relative;
}
.gallery-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0,0,0,.15);
}
.gallery-item img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform .4s ease;
}
.gallery-item:hover img { transform: scale(1.04); }
.gallery-caption {
  padding: .85rem 1.25rem;
  font-size: .9rem;
  color: var(--text-light);
  background: var(--white);
  margin: 0;
}

/* ---- Series Grid (Home) ---- */
.series-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.series-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .3s ease, box-shadow .3s ease;
  text-decoration: none;
  color: inherit;
}
.series-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0,0,0,.14);
  color: inherit;
}
.series-card-img {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: linear-gradient(145deg, #f8f8f8 0%, #efefef 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.series-card-img img {
  max-height: 160px;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: transform .3s ease;
}
.series-card:hover .series-card-img img { transform: scale(1.06); }
.series-card-body {
  padding: 1.25rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.series-card-body h3 {
  font-size: 1.15rem;
  margin-bottom: .4rem;
  color: var(--secondary);
}
.series-card-body p {
  font-size: .9rem;
  color: var(--text-light);
  margin-bottom: .75rem;
  flex: 1;
}
.series-card-count {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(230,126,34,.08);
  padding: .3rem .75rem;
  border-radius: 100px;
  align-self: flex-start;
}

/* ---- Blog ---- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}
.blog-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
}
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.blog-card-body { padding: 1.75rem; }
.blog-card-body h2 { font-size: 1.15rem; margin-bottom: .5rem; line-height: 1.35; }
.blog-card-body h2 a { color: var(--secondary); }
.blog-card-body h2 a:hover { color: var(--primary); }
.blog-card-body p { font-size: .92rem; color: var(--text-light); margin-bottom: 1rem; }
.blog-card--compact .blog-card-body { padding: 1.25rem; }
.blog-card--compact h3 { font-size: 1rem; margin-bottom: .75rem; line-height: 1.35; }
.blog-card--compact h3 a { color: var(--secondary); }
.blog-card--compact h3 a:hover { color: var(--primary); }
.blog-card-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: .75rem;
  font-size: .8rem;
  color: var(--text-light);
}
.blog-card-date { font-weight: 600; }
.blog-card-cats { color: var(--primary); font-weight: 500; }

.blog-post { max-width: 800px; }
.blog-post-header { margin-bottom: 2rem; }
.blog-post-header h1 { margin-top: .5rem; }
.blog-post-content { line-height: 1.8; }
.blog-post-content h2 { margin-top: 2rem; font-size: 1.4rem; }
.blog-post-content h3 { margin-top: 1.5rem; font-size: 1.15rem; }
.blog-post-content p { color: var(--text); margin-bottom: 1rem; }
.blog-post-content ul, .blog-post-content ol { margin: 0 0 1.25rem 1.5rem; line-height: 1.8; }
.blog-post-content li { margin-bottom: .35rem; }
.blog-post-content table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.blog-post-content th { background: var(--secondary); color: var(--white); padding: .75rem 1rem; text-align: left; font-size: .9rem; }
.blog-post-content td { padding: .75rem 1rem; font-size: .9rem; border-bottom: 1px solid var(--border); }
.blog-post-content tr:nth-child(even) td { background: var(--bg-alt); }
.blog-post-content blockquote { border-left: 4px solid var(--primary); margin: 1.5rem 0; padding: 1rem 1.5rem; background: var(--bg-alt); border-radius: 0 var(--radius) var(--radius) 0; }
.blog-post-content img { border-radius: var(--radius); margin: 1rem 0; }

/* ---- Floating WhatsApp Button ---- */
.wa-float {
  position: fixed;
  bottom: 90px;
  right: 20px;
  z-index: 99;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,.2);
  transition: transform .2s ease, box-shadow .2s ease;
  cursor: pointer;
}
.wa-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0,0,0,.25);
}
.wa-float svg { width: 28px; height: 28px; fill: #fff; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .series-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .header-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
    gap: 0;
  }
  .header-nav.open { display: flex; }
  .header-nav li { width: 100%; }
  .header-nav a { display: block; padding: .75rem 1rem; border-radius: var(--radius); }
  .header-nav a:hover { background: var(--bg-alt); }
  .header-cta { display: inline-flex; }

  .hero { padding: 4rem 1rem 3rem; }
  .hero::after { height: 30px; }
  .hero-buttons { flex-direction: column; align-items: center; }

  .stats-bar { margin-top: -1.5rem; }
  .stats-bar-inner { grid-template-columns: repeat(2, 1fr); }
  .stat-item { padding: 1.25rem .75rem; }
  .stat-number { font-size: 1.5rem; }

  .trust-bar-inner { gap: 1rem; }
  .trust-item { font-size: .8rem; }

  .product-detail { grid-template-columns: 1fr; }
  .product-detail-img { position: static; padding: 1rem; }
  .measures-grid { flex-direction: column; }
  .measures-diagram { max-width: 100%; }

  .product-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; }
  .product-card-img { padding: .5rem; }
  .product-card-body { padding: .75rem; }
  .product-card-body h3 { font-size: .9rem; }

  .contact-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; gap: 1rem; }
  .blog-grid { grid-template-columns: 1fr; }
  .series-grid { grid-template-columns: 1fr; }
  .series-card-img { aspect-ratio: 3/2; padding: 1rem; }
  .series-card-img img { max-height: 120px; }
  .gallery-item img { height: 200px; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .section { padding: 2rem 0; }

  .specs-table { font-size: .8rem; }
  .specs-table th, .specs-table td { padding: .5rem; }
}