/* ============================================================
   Distribuidora Hermanos Rojas — Hoja de estilos principal
   Mobile-first | Color principal: #0baf9a
   ============================================================ */

/* ─── Variables ──────────────────────────────────────────── */
:root {
  --primary:       #0baf9a;
  --primary-dark:  #089882;
  --primary-light: #e6f7f5;
  --accent:        #f97316;
  --accent-dark:   #ea6200;
  --dark:          #1a1a2e;
  --gray-900:      #111827;
  --gray-700:      #374151;
  --gray-500:      #6b7280;
  --gray-300:      #d1d5db;
  --gray-100:      #f3f4f6;
  --white:         #ffffff;
  --success:       #22c55e;
  --danger:        #ef4444;
  --warning:       #f59e0b;
  --radius:        10px;
  --radius-lg:     16px;
  --shadow:        0 2px 12px rgba(0,0,0,.08);
  --shadow-md:     0 4px 24px rgba(0,0,0,.12);
  --font-main:     'Plus Jakarta Sans', 'Segoe UI', system-ui, sans-serif;
  --transition:    .2s ease;
}

/* ─── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  color: var(--gray-700);
  background: var(--white);
  line-height: 1.6;
  font-size: 15px;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
ul { list-style: none; }
input, button, select, textarea { font-family: inherit; }

/* ─── Typography ──────────────────────────────────────────── */
h1,h2,h3,h4,h5,h6 { color: var(--dark); font-weight: 700; line-height: 1.25; }
h1 { font-size: clamp(1.6rem, 5vw, 2.4rem); }
h2 { font-size: clamp(1.3rem, 4vw, 1.9rem); }
h3 { font-size: clamp(1.1rem, 3vw, 1.4rem); }
p  { margin-bottom: .75rem; }

/* ─── Container ───────────────────────────────────────────── */
.container { width: 100%; padding: 0 1rem; margin: 0 auto; max-width: 1280px; }
@media(min-width:640px)  { .container { padding: 0 1.5rem; } }
@media(min-width:1024px) { .container { padding: 0 2rem;   } }

/* ─── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  padding: .65rem 1.4rem; border-radius: var(--radius); border: none;
  font-size: .9rem; font-weight: 600; cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-primary   { background: var(--primary);   color: var(--white); box-shadow: 0 3px 10px rgba(11,175,154,.3); }
.btn-primary:hover { background: var(--primary-dark); color: var(--white); box-shadow: 0 5px 18px rgba(11,175,154,.4); }
.btn-whatsapp  { background: #25d366; color: var(--white); }
.btn-whatsapp:hover { background: #1fb558; color: var(--white); box-shadow: 0 5px 18px rgba(37,211,102,.35); }
.btn-outline   { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--white); }
.btn-accent    { background: var(--accent); color: var(--white); }
.btn-accent:hover { background: var(--accent-dark); color: var(--white); }
.btn-sm { padding: .4rem .9rem; font-size: .8rem; }
.btn-lg { padding: .85rem 1.8rem; font-size: 1rem; }
.btn-full { width: 100%; }

/* ─── Header ──────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--white); box-shadow: var(--shadow);
}
.header-top {
  background: var(--primary);
  color: var(--white);
  font-size: .8rem;
  padding: .35rem 0;
  text-align: center;
}
.header-main {
  display: flex; align-items: center; gap: 1rem;
  padding: .75rem 1rem;
}
.logo img { height: 48px; width: auto; }
.logo-text { font-size: 1.15rem; font-weight: 800; color: var(--primary); line-height: 1.1; }
.logo-text span { color: var(--gray-700); font-weight: 500; font-size: .8rem; display: block; }
.search-bar {
  flex: 1; display: flex; border: 2px solid var(--gray-300);
  border-radius: 50px; overflow: hidden; transition: border-color var(--transition);
}
.search-bar:focus-within { border-color: var(--primary); }
.search-bar input {
  flex: 1; border: none; outline: none; padding: .55rem .9rem; font-size: .9rem;
  background: transparent;
}
.search-bar button {
  border: none; background: var(--primary); color: white;
  padding: 0 1rem; cursor: pointer; font-size: 1rem;
  transition: background var(--transition);
}
.search-bar button:hover { background: var(--primary-dark); }
.header-actions { display: flex; align-items: center; gap: .6rem; }
.wa-header-btn {
  display: flex; align-items: center; gap: .4rem;
  background: #25d366; color: white; border: none;
  padding: .5rem .9rem; border-radius: 50px; font-size: .85rem; font-weight: 600;
  cursor: pointer; transition: background var(--transition);
  text-decoration: none;
}
.wa-header-btn:hover { background: #1fb558; color: white; }
.wa-header-btn .wa-icon { font-size: 1.1rem; }
.hamburger {
  display: flex; flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: .4rem;
}
.hamburger span { display: block; width: 22px; height: 2px; background: var(--gray-700); border-radius: 2px; transition: all .3s; }

/* ─── Navigation ──────────────────────────────────────────── */
.main-nav { background: var(--white); border-top: 1px solid var(--gray-100); }
.main-nav ul { display: flex; gap: 0; overflow-x: auto; scrollbar-width: none; }
.main-nav ul::-webkit-scrollbar { display: none; }
.main-nav ul li a {
  display: block; padding: .7rem 1rem; font-size: .88rem; font-weight: 600;
  color: var(--gray-700); white-space: nowrap;
  border-bottom: 3px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.main-nav ul li a:hover,
.main-nav ul li a.active { color: var(--primary); border-bottom-color: var(--primary); }

/* Mobile nav drawer */
.mobile-menu { display: none; background: var(--white); border-top: 1px solid var(--gray-100); }
.mobile-menu.open { display: block; }
.mobile-menu ul li a {
  display: block; padding: .85rem 1.25rem;
  border-bottom: 1px solid var(--gray-100); font-weight: 600; color: var(--gray-700);
}
.mobile-menu ul li a:hover { color: var(--primary); background: var(--primary-light); }

/* ─── Hero / Slider ───────────────────────────────────────── */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #0baf9a 0%, #089882 60%, #0d7a6d 100%);
  min-height: 280px;
}
.hero-slide {
  display: none; position: relative;
  min-height: 280px;
  align-items: center;
  padding: 2rem 1rem;
}
.hero-slide.active { display: flex; }
.hero-content { position: relative; z-index: 2; max-width: 500px; }
.hero-badge {
  display: inline-block; background: var(--accent); color: white;
  padding: .3rem .9rem; border-radius: 50px; font-size: .75rem; font-weight: 700;
  margin-bottom: .75rem; letter-spacing: .5px; text-transform: uppercase;
}
.hero-title { font-size: clamp(1.5rem, 5vw, 2.8rem); color: white; margin-bottom: .75rem; }
.hero-subtitle { color: rgba(255,255,255,.85); margin-bottom: 1.25rem; font-size: .95rem; }
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: .15;
}
.hero-nav {
  position: absolute; bottom: 1rem; left: 50%; transform: translateX(-50%);
  display: flex; gap: .4rem; z-index: 5;
}
.hero-nav button {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,.4); border: none; cursor: pointer; padding: 0;
  transition: background var(--transition);
}
.hero-nav button.active { background: white; }

/* ─── Section titles ──────────────────────────────────────── */
.section { padding: 3rem 0; }
.section-sm { padding: 1.5rem 0; }
.section-title { text-align: center; margin-bottom: 2rem; }
.section-title h2 { margin-bottom: .4rem; }
.section-title p { color: var(--gray-500); }
.section-title .line {
  display: block; width: 48px; height: 3px; background: var(--primary);
  margin: .75rem auto 0; border-radius: 2px;
}

/* ─── Category cards ──────────────────────────────────────── */
.cat-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem;
}
@media(min-width:640px)  { .cat-grid { grid-template-columns: repeat(4, 1fr); } }
@media(min-width:1024px) { .cat-grid { grid-template-columns: repeat(6, 1fr); } }

.cat-card {
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  padding: 1rem .5rem; border-radius: var(--radius);
  background: var(--white); border: 2px solid var(--gray-100);
  cursor: pointer; text-align: center;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
}
.cat-card:hover {
  border-color: var(--primary); transform: translateY(-3px);
  box-shadow: var(--shadow-md); color: var(--primary);
}
.cat-card img { width: 72px; height: 72px; object-fit: cover; border-radius: 50%; }
.cat-card-placeholder {
  width: 72px; height: 72px; border-radius: 50%;
  background: var(--primary-light); display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
}
.cat-card-name { font-size: .8rem; font-weight: 700; color: var(--gray-900); }
.cat-card-count { font-size: .72rem; color: var(--gray-500); }

/* ─── Product cards ───────────────────────────────────────── */
.products-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: .9rem;
}
@media(min-width:640px)  { .products-grid { grid-template-columns: repeat(3, 1fr); gap: 1rem; } }
@media(min-width:900px)  { .products-grid { grid-template-columns: repeat(4, 1fr); } }
@media(min-width:1200px) { .products-grid { grid-template-columns: repeat(5, 1fr); } }

.product-card {
  background: var(--white); border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow); border: 1px solid var(--gray-100);
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex; flex-direction: column;
}
.product-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.product-card-img {
  position: relative; aspect-ratio: 1/1; overflow: hidden;
  background: var(--gray-100);
}
.product-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.product-card:hover .product-card-img img { transform: scale(1.05); }
.product-badge {
  position: absolute; top: .5rem; left: .5rem;
  background: var(--primary); color: white;
  font-size: .65rem; font-weight: 700; padding: .2rem .55rem;
  border-radius: 50px; text-transform: uppercase; letter-spacing: .5px;
}
.product-badge.badge-out { background: var(--gray-500); }
.product-badge.badge-seasonal { background: var(--accent); }
.product-card-body { padding: .8rem; flex: 1; display: flex; flex-direction: column; gap: .4rem; }
.product-card-cat { font-size: .7rem; color: var(--primary); font-weight: 600; text-transform: uppercase; letter-spacing: .4px; }
.product-card-name { font-size: .9rem; font-weight: 700; color: var(--gray-900); line-height: 1.3; }
.product-card-unit { font-size: .75rem; color: var(--gray-500); }
.product-card-desc { font-size: .78rem; color: var(--gray-500); line-height: 1.4; }
.product-card-price { font-size: 1rem; font-weight: 800; color: var(--primary); }
.product-card-footer { padding: .6rem .8rem .8rem; display: flex; gap: .5rem; }
.product-card-footer .btn { flex: 1; font-size: .75rem; padding: .45rem .5rem; }

/* ─── Benefits bar ────────────────────────────────────────── */
.benefits {
  background: var(--primary); color: white; padding: 1.5rem 0;
}
.benefits-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem;
}
@media(min-width:640px)  { .benefits-grid { grid-template-columns: repeat(4, 1fr); } }
.benefit-item { display: flex; align-items: flex-start; gap: .75rem; }
.benefit-icon { font-size: 1.8rem; flex-shrink: 0; }
.benefit-title  { font-size: .9rem; font-weight: 700; }
.benefit-desc   { font-size: .78rem; opacity: .85; }

/* ─── Reviews ─────────────────────────────────────────────── */
.reviews-grid {
  display: grid; grid-template-columns: 1fr; gap: 1rem;
}
@media(min-width:640px)  { .reviews-grid { grid-template-columns: repeat(2, 1fr); } }
@media(min-width:900px)  { .reviews-grid { grid-template-columns: repeat(4, 1fr); } }
.review-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 1.25rem;
  box-shadow: var(--shadow); border: 1px solid var(--gray-100);
}
.review-header { display: flex; align-items: center; gap: .75rem; margin-bottom: .75rem; }
.review-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--primary-light); display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; font-weight: 700; color: var(--primary); flex-shrink: 0;
}
.review-name   { font-weight: 700; font-size: .9rem; color: var(--gray-900); }
.review-date   { font-size: .72rem; color: var(--gray-500); }
.review-stars  { color: #f59e0b; font-size: .85rem; margin-bottom: .4rem; }
.review-text   { font-size: .82rem; color: var(--gray-700); line-height: 1.5; }

/* Stars generic */
.stars { display: inline-flex; gap: 2px; }
.stars .star.full,
.stars .star.half { color: #f59e0b; }
.stars .star.empty { color: var(--gray-300); }

/* ─── CTA WhatsApp ────────────────────────────────────────── */
.cta-wa {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 3rem 0; text-align: center; color: white;
}
.cta-wa h2 { color: white; margin-bottom: .75rem; }
.cta-wa p  { opacity: .88; margin-bottom: 1.5rem; }
.wa-float {
  position: fixed; bottom: 1.25rem; right: 1.25rem; z-index: 999;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25d366; color: white; font-size: 1.5rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.5); text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition);
  animation: wa-pulse 2s infinite;
}
.wa-float:hover { transform: scale(1.1); color: white; }
@keyframes wa-pulse {
  0%,100% { box-shadow: 0 4px 20px rgba(37,211,102,.5); }
  50%      { box-shadow: 0 4px 32px rgba(37,211,102,.75); }
}

/* ─── Footer ──────────────────────────────────────────────── */
.site-footer {
  background: var(--dark); color: rgba(255,255,255,.75);
  padding: 2.5rem 0 1rem;
}
.footer-grid {
  display: grid; grid-template-columns: 1fr; gap: 2rem; margin-bottom: 2rem;
}
@media(min-width:640px)  { .footer-grid { grid-template-columns: repeat(2,1fr); } }
@media(min-width:900px)  { .footer-grid { grid-template-columns: repeat(4,1fr); } }
.footer-col h4 { color: white; font-size: .95rem; margin-bottom: .9rem; }
.footer-col ul li { margin-bottom: .4rem; }
.footer-col ul li a { font-size: .83rem; color: rgba(255,255,255,.65); }
.footer-col ul li a:hover { color: var(--primary); }
.footer-logo { color: var(--primary); font-size: 1.2rem; font-weight: 800; margin-bottom: .5rem; }
.footer-tagline { font-size: .82rem; opacity: .7; margin-bottom: 1rem; }
.footer-contact li { display: flex; align-items: flex-start; gap: .5rem; font-size: .83rem; margin-bottom: .4rem; }
.footer-contact li span { opacity: .7; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding-top: 1rem;
  display: flex; flex-wrap: wrap; gap: .5rem;
  justify-content: space-between; font-size: .78rem; opacity: .55;
}

/* ─── Product page ────────────────────────────────────────── */
.product-layout {
  display: grid; grid-template-columns: 1fr; gap: 2rem;
}
@media(min-width:768px) { .product-layout { grid-template-columns: 1fr 1fr; } }
@media(min-width:1024px) { .product-layout { grid-template-columns: 1.2fr 1fr; } }

.product-gallery .main-img {
  border-radius: var(--radius-lg); overflow: hidden;
  aspect-ratio: 1/1; background: var(--gray-100);
}
.product-gallery .main-img img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs {
  display: flex; gap: .5rem; margin-top: .75rem; overflow-x: auto; scrollbar-width: none;
}
.gallery-thumbs img {
  width: 64px; height: 64px; object-fit: cover;
  border-radius: var(--radius); cursor: pointer; flex-shrink: 0;
  border: 2px solid transparent; transition: border-color var(--transition);
}
.gallery-thumbs img.active { border-color: var(--primary); }

.product-info h1 { font-size: clamp(1.3rem, 4vw, 1.9rem); }
.product-meta { display: flex; flex-wrap: wrap; gap: .4rem; margin: 1rem 0; }
.meta-tag {
  font-size: .75rem; font-weight: 600; padding: .3rem .75rem;
  border-radius: 50px; background: var(--primary-light); color: var(--primary);
}
.product-rating { display: flex; align-items: center; gap: .5rem; margin: .75rem 0; }
.product-rating .stars { font-size: .95rem; }
.product-rating .count { font-size: .8rem; color: var(--gray-500); }
.product-attrs { border: 1px solid var(--gray-100); border-radius: var(--radius); overflow: hidden; margin: 1rem 0; }
.product-attrs tr td { padding: .5rem .75rem; font-size: .83rem; border-bottom: 1px solid var(--gray-100); }
.product-attrs tr:last-child td { border-bottom: none; }
.product-attrs tr td:first-child { font-weight: 600; color: var(--gray-900); width: 40%; background: var(--gray-100); }
.product-cta { display: flex; flex-direction: column; gap: .6rem; }

/* ─── Catalog / search page ───────────────────────────────── */
.catalog-layout { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media(min-width:768px) { .catalog-layout { grid-template-columns: 220px 1fr; } }
.sidebar { display: none; }
@media(min-width:768px) { .sidebar { display: block; } }
.sidebar-card { background: var(--white); border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow); margin-bottom: 1rem; }
.sidebar-card h4 { margin-bottom: .75rem; font-size: .9rem; }
.sidebar-cat-link {
  display: flex; justify-content: space-between; align-items: center;
  padding: .4rem .5rem; border-radius: var(--radius); font-size: .85rem;
  color: var(--gray-700); transition: background var(--transition), color var(--transition);
}
.sidebar-cat-link:hover,
.sidebar-cat-link.active { background: var(--primary-light); color: var(--primary); }
.sidebar-cat-link .count { font-size: .72rem; background: var(--gray-100); border-radius: 50px; padding: .15rem .45rem; }

/* ─── Forms ───────────────────────────────────────────────── */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: .35rem; color: var(--gray-700); }
.form-control {
  width: 100%; padding: .65rem .85rem; border: 2px solid var(--gray-300);
  border-radius: var(--radius); font-size: .9rem; outline: none;
  transition: border-color var(--transition);
  background: var(--white); color: var(--gray-900);
}
.form-control:focus { border-color: var(--primary); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 100px; }

/* ─── Alerts ──────────────────────────────────────────────── */
.alert {
  padding: .85rem 1rem; border-radius: var(--radius); margin-bottom: 1rem;
  font-size: .88rem; font-weight: 500;
}
.alert-success { background: #dcfce7; color: #166534; border-left: 4px solid #22c55e; }
.alert-error   { background: #fee2e2; color: #7f1d1d; border-left: 4px solid #ef4444; }
.alert-info    { background: var(--primary-light); color: var(--primary-dark); border-left: 4px solid var(--primary); }
.alert-warning { background: #fef9c3; color: #713f12; border-left: 4px solid #f59e0b; }

/* ─── Pagination ──────────────────────────────────────────── */
.pagination { display: flex; justify-content: center; margin-top: 2rem; }
.pagination ul { display: flex; gap: .35rem; flex-wrap: wrap; }
.pagination ul li a, .pagination ul li span {
  display: flex; align-items: center; justify-content: center;
  min-width: 36px; height: 36px; border-radius: var(--radius);
  font-size: .85rem; font-weight: 600;
  border: 2px solid var(--gray-200); color: var(--gray-700);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.pagination ul li.active a, .pagination ul li a:hover {
  background: var(--primary); border-color: var(--primary); color: white;
}

/* ─── Breadcrumb ──────────────────────────────────────────── */
.breadcrumb { padding: .75rem 0; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: .35rem; align-items: center; list-style: none; font-size: .8rem; }
.breadcrumb-item a { color: var(--primary); }
.breadcrumb-item + .breadcrumb-item::before { content: '/'; color: var(--gray-300); }
.breadcrumb-item.active { color: var(--gray-500); }

/* ─── Section dividers ────────────────────────────────────── */
.divider { height: 1px; background: var(--gray-100); margin: 1.5rem 0; }

/* ─── Utilities ───────────────────────────────────────────── */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-muted   { color: var(--gray-500); }
.fw-bold      { font-weight: 700; }
.mt-1  { margin-top: .5rem;  }
.mt-2  { margin-top: 1rem;   }
.mt-3  { margin-top: 1.5rem; }
.mb-1  { margin-bottom: .5rem;  }
.mb-2  { margin-bottom: 1rem;   }
.mb-3  { margin-bottom: 1.5rem; }
.gap-1 { gap: .5rem; }
.gap-2 { gap: 1rem;  }
.d-flex { display: flex; }
.align-center { align-items: center; }
.flex-wrap  { flex-wrap: wrap; }
.hidden-mobile { display: none; }
@media(min-width:640px) { .hidden-mobile { display: block; } }
.visible-mobile { display: block; }
@media(min-width:640px) { .visible-mobile { display: none; } }

/* ─── Skeleton loader ─────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--gray-100) 25%, #e5e7eb 50%, var(--gray-100) 75%);
  background-size: 200% 100%; border-radius: var(--radius);
  animation: skeleton-loading 1.2s infinite;
}
@keyframes skeleton-loading { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ─── 404 ─────────────────────────────────────────────────── */
.page-404 { text-align: center; padding: 4rem 1rem; }
.page-404 h1 { font-size: 5rem; color: var(--primary); }
.page-404 h2 { margin-bottom: 1rem; }
.page-404 p  { color: var(--gray-500); margin-bottom: 1.5rem; }

/* ─── No disponible ───────────────────────────────────────── */
.unavailable-overlay {
  position: absolute; inset: 0; background: rgba(0,0,0,.4);
  display: flex; align-items: center; justify-content: center;
}
.unavailable-badge {
  background: var(--gray-700); color: white; font-size: .72rem; font-weight: 700;
  padding: .35rem .75rem; border-radius: 50px; text-transform: uppercase;
}

/* ─── Back to top ─────────────────────────────────────────── */
#back-top {
  position: fixed; bottom: 5.5rem; right: 1.25rem; z-index: 998;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--gray-700); color: white; border: none;
  font-size: 1rem; cursor: pointer; opacity: 0;
  transition: opacity var(--transition), transform var(--transition);
  display: flex; align-items: center; justify-content: center;
}
#back-top.show { opacity: .8; }
#back-top:hover { opacity: 1; transform: translateY(-2px); }

/* ─── Responsive adjustments ──────────────────────────────── */
@media(min-width:640px) {
  .hero { min-height: 380px; }
  .hero-slide { min-height: 380px; }
  .hamburger { display: none; }
  .mobile-menu { display: none !important; }
  .main-nav { display: block; }
  .wa-header-btn .wa-label { display: inline; }
}
@media(max-width:639px) {
  .main-nav { display: none; }
  .wa-header-btn .wa-label { display: none; }
}

/* ─── Print ───────────────────────────────────────────────── */
@media print {
  .site-header, .wa-float, #back-top, .cta-wa { display: none; }
}