/* =============================================
   Rebotec US — Main Stylesheet
   ============================================= */

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

:root {
  --color-primary: #cc1a14;
  --color-primary-dark: #a31510;
  --color-primary-light: #fdecea;
  --color-accent: #cc1a14;
  --color-text: #1a1a1a;
  --color-text-muted: #555;
  --color-border: #dde3ea;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7fa;
  --color-white: #ffffff;
  --font-family: 'Roboto', system-ui, -apple-system, sans-serif;
  --font-heading: 'Exo', system-ui, sans-serif;
  --radius: 8px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-hover: 0 6px 24px rgba(0,0,0,0.14);
  --transition: 0.2s ease;
  --container-width: 1160px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); }

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

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

.section { padding: 64px 0; }
.section-alt { background: var(--color-bg-alt); }

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: var(--color-text);
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.site-logo img { height: 40px; width: auto; }
.logo-text { font-family: 'Exo', sans-serif; font-size: 1.4rem; font-weight: 700; color: var(--color-primary); letter-spacing: 0.01em; }
.logo-us { font-family: 'Exo', sans-serif; font-size: 2.2rem; font-weight: 800; color: var(--color-primary); letter-spacing: 0.05em; }

.site-nav ul {
  display: flex;
  list-style: none;
  gap: 8px;
}

.site-nav a {
  display: block;
  padding: 8px 14px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text);
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* --- Carousel --- */
.carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--color-primary);
}

.carousel-track {
  position: relative;
  width: 100%;
  min-height: 460px;
}

.carousel-slide {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  min-height: 460px;
  display: flex;
  opacity: 0;
  transition: opacity 0.7s ease;
  pointer-events: none;
}

.carousel-slide.active {
  opacity: 1;
  pointer-events: auto;
  position: relative;
}

/* Split panels */
.carousel-panel {
  display: flex;
  align-items: center;
  width: 50%;
}

.carousel-panel-text {
  background: var(--color-primary);
  padding: 56px 48px 56px 64px;
  color: #fff;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
}

.carousel-panel-image {
  background: var(--color-bg-alt);
  justify-content: center;
  align-items: center;
  overflow: hidden;
  min-height: 460px;
}

.carousel-panel-image img {
  width: 100%;
  height: 100%;
  max-height: 460px;
  object-fit: contain;
  padding: 24px;
  transition: transform 0.4s ease;
}

.carousel-slide.active .carousel-panel-image img {
  transform: scale(1.03);
}

.carousel-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.7);
  margin-bottom: 14px;
}

.carousel-panel-text h1 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  color: #fff;
}

.carousel-sub {
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
  margin-bottom: 32px;
  max-width: 380px;
}

.carousel-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-outline-white {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
}

.btn-outline-white:hover {
  background: rgba(255,255,255,0.15);
  color: #fff;
  text-decoration: none;
}

/* Arrows */
.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: rgba(0,0,0,0.2);
  color: #fff;
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.carousel-arrow:hover { background: rgba(0,0,0,0.45); }
.carousel-prev { left: 16px; }
.carousel-next { right: 16px; }

/* Dots */
.carousel-dots {
  position: absolute;
  bottom: 16px;
  left: 25%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.6);
  background: transparent;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  padding: 0;
}

.carousel-dot.active {
  background: #fff;
  border-color: #fff;
}

@media (max-width: 768px) {
  .carousel-slide { flex-direction: column; }
  .carousel-panel { width: 100%; }
  .carousel-panel-text { padding: 36px 24px 28px; }
  .carousel-panel-image { min-height: 220px; }
  .carousel-panel-image img { max-height: 220px; }
  .carousel-panel-text h1 { font-size: 1.6rem; }
  .carousel-dots { left: 50%; bottom: 12px; }
  .carousel-arrow { display: none; }
}

/* --- Hero --- */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  padding: 96px 0;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 1.15rem;
  opacity: 0.9;
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
}

.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); text-decoration: none; }

.btn-primary { background: var(--color-primary); color: var(--color-white); }
.btn-primary:hover { background: var(--color-primary-dark); color: var(--color-white); }

.btn-secondary { background: transparent; color: var(--color-primary); border: 2px solid var(--color-primary); }
.btn-secondary:hover { background: var(--color-primary-light); }

.btn-white { background: var(--color-white); color: var(--color-primary); }
.btn-white:hover { background: var(--color-primary-light); }

.btn-link { color: var(--color-primary); font-weight: 600; font-size: 0.9rem; }

/* --- Card Grid --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.categories .card-grid,
.card-grid.categories {
  grid-template-columns: repeat(3, 1fr);
  max-width: 960px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .categories .card-grid,
  .card-grid.categories { grid-template-columns: 1fr; }
}

/* --- Category Cards --- */
.category-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  color: var(--color-text);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.category-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
  border-color: var(--color-primary);
  text-decoration: none;
  color: var(--color-text);
}

.card-icon {
  width: 100%;
  height: 180px;
  overflow: hidden;
  border-radius: var(--radius);
  margin-bottom: 4px;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px;
  transition: transform 0.3s ease;
}

.category-card:hover .card-icon img {
  transform: scale(1.05);
}

.category-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
}

.category-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* --- Product Cards --- */
.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  color: var(--color-text);
  text-decoration: none;
  transition: box-shadow var(--transition), transform var(--transition);
}

.product-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
  text-decoration: none;
  color: var(--color-text);
}

.product-card-image {
  height: 220px;
  overflow: hidden;
  background: var(--color-bg-alt);
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  transition: transform 0.3s ease;
}

.product-card:hover .product-card-image img { transform: scale(1.04); }

.product-card-body {
  padding: 20px;
  flex: 1;
}

.product-card-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.product-card-body p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.product-card-footer {
  padding: 12px 20px 20px;
  border-top: 1px solid var(--color-border);
}

/* --- Features Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 32px;
}

.feature {
  text-align: center;
  padding: 24px;
}

.feature-icon { font-size: 2.4rem; margin-bottom: 16px; }

.feature h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-primary);
}

.feature p { font-size: 0.9rem; color: var(--color-text-muted); line-height: 1.6; }

/* --- CTA Strip --- */
.cta-strip {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 40px 0;
  text-align: center;
}

.cta-strip .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-strip p { font-size: 1.1rem; }

/* --- Page Hero --- */
.page-hero {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: 48px 0 36px;
}

.page-hero h1 { font-size: 2.2rem; font-weight: 700; color: var(--color-text); }
.page-hero-sub { margin-top: 12px; font-size: 1.05rem; color: var(--color-text-muted); }

.breadcrumb { font-size: 0.9rem; color: var(--color-text-muted); margin-bottom: 8px; }
.breadcrumb a { color: var(--color-primary); }

/* --- Product Layout --- */
.product-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.product-gallery { position: sticky; top: 80px; }

.product-main-image {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.product-thumbs {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.product-thumb {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 6px;
  border: 2px solid var(--color-border);
  cursor: pointer;
  transition: border-color var(--transition);
}

.product-thumb:hover { border-color: var(--color-primary); }
.product-thumb.active { border-color: var(--color-primary); box-shadow: 0 0 0 2px var(--color-primary); }

.product-info { display: flex; flex-direction: column; gap: 24px; }

.page-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 24px; }

/* --- Specs Table --- */
.specs-table { margin-bottom: 24px; }
.specs-table h2 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
.specs-table h3 { font-size: 1rem; font-weight: 700; margin: 16px 0 8px; }

.specs-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.specs-table th,
.specs-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.specs-table th {
  background: var(--color-bg-alt);
  font-weight: 600;
  width: 40%;
  color: var(--color-text-muted);
}

.feature-list { padding-left: 20px; }
.feature-list li { margin-bottom: 6px; font-size: 0.9rem; }

/* --- Prose --- */
.prose h2 { font-size: 1.4rem; font-weight: 700; margin: 28px 0 12px; color: var(--color-text); }
.prose h3 { font-size: 1.15rem; font-weight: 700; margin: 20px 0 8px; }
.prose p { margin-bottom: 16px; line-height: 1.75; }
.prose ul, .prose ol { padding-left: 24px; margin-bottom: 16px; }
.prose li { margin-bottom: 6px; line-height: 1.6; }
.prose strong { font-weight: 700; }
.prose a { color: var(--color-primary); }
.prose a:hover { text-decoration: underline; }

.prose table { width: 100%; border-collapse: collapse; margin-bottom: 20px; font-size: 0.95rem; }
.prose table th, .prose table td { padding: 10px 14px; text-align: left; border: 1px solid var(--color-border); }
.prose table thead th { background: var(--color-bg-alt); font-weight: 600; }
.prose table tbody tr:nth-child(even) td, .prose table tbody tr:nth-child(even) th { background: var(--color-bg-alt); }

.page-content { max-width: 800px; }

/* --- Contact Form --- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info h2 { font-size: 1.3rem; margin-bottom: 16px; }
.contact-info p { font-size: 0.95rem; color: var(--color-text-muted); margin-bottom: 12px; }
.contact-detail { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 12px; font-size: 0.95rem; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 6px; }

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-family);
  font-size: 0.95rem;
  transition: border-color var(--transition);
  background: var(--color-white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 90, 156, 0.12);
}

.form-group textarea { min-height: 140px; resize: vertical; }

/* --- Product Downloads --- */
.product-downloads {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  margin-top: 8px;
}

.product-downloads h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.download-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.download-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-bg-alt);
  transition: background var(--transition), border-color var(--transition);
}

.download-link:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  text-decoration: none;
}

.download-icon { font-size: 1.1rem; }

.product-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* --- Where to Buy --- */
.retailer-list { list-style: none; padding: 0; }
.retailer-list li {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  background: var(--color-white);
}
.retailer-list strong { font-size: 1.05rem; color: var(--color-primary); }
.retailer-list p { font-size: 0.9rem; color: var(--color-text-muted); margin: 4px 0 0; }

/* --- Downloads Page --- */
.downloads-section {
  margin-bottom: 56px;
}

.downloads-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary);
}

.downloads-intro {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.downloads-empty {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-style: italic;
  padding: 20px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  text-align: center;
}

.downloads-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.download-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  text-decoration: none;
}

.download-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: var(--color-text);
}

.download-card-icon { font-size: 2rem; flex-shrink: 0; }

.download-card-body {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.download-card-body strong {
  font-size: 0.95rem;
  color: var(--color-primary);
}

.download-card-body span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.download-card-featured {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.download-card-featured .download-card-body strong {
  font-size: 1rem;
}

/* --- Comparison Table --- */
.comparison-section {
  margin-top: 64px;
}

.comparison-section h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--color-text);
}

.comparison-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  min-width: 600px;
}

.comparison-table thead th {
  background: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 700;
  padding: 14px 16px;
  text-align: left;
  border-right: 1px solid rgba(255,255,255,0.15);
}

.comparison-table thead th a {
  color: var(--color-white);
  text-decoration: none;
}

.comparison-table thead th a:hover {
  text-decoration: underline;
}

.comparison-table thead th.spec-label {
  background: var(--color-primary-dark);
  min-width: 140px;
  position: sticky;
  left: 0;
  z-index: 2;
}

.comparison-table tbody th.spec-label {
  background: var(--color-bg-alt);
  font-weight: 600;
  color: var(--color-text-muted);
  padding: 12px 16px;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
  position: sticky;
  left: 0;
  z-index: 1;
}

.comparison-table tbody td {
  padding: 12px 16px;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
  color: var(--color-text);
}

.comparison-table tbody tr:nth-child(even) td,
.comparison-table tbody tr:nth-child(even) th.spec-label {
  background: var(--color-bg-alt);
}

.comparison-table tbody tr:last-child td,
.comparison-table tbody tr:last-child th.spec-label {
  border-bottom: none;
}

.comparison-features {
  list-style: disc;
  padding-left: 16px;
  margin: 0;
}

.comparison-features li {
  margin-bottom: 4px;
  line-height: 1.4;
}

/* --- Footer --- */
.site-footer {
  background: #1a2540;
  color: #ccd6e6;
  padding: 56px 0 28px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand strong { color: var(--color-white); font-size: 1.1rem; display: block; margin-bottom: 12px; }
.footer-brand p { font-size: 0.87rem; line-height: 1.7; margin-bottom: 4px; }
.footer-brand a { color: #aab8cc; }
.footer-brand a:hover { color: var(--color-white); }

.footer-nav h4 { color: var(--color-white); font-size: 0.95rem; margin-bottom: 14px; }
.footer-nav ul { list-style: none; }
.footer-nav li { margin-bottom: 8px; }
.footer-nav a { font-size: 0.87rem; color: #aab8cc; }
.footer-nav a:hover { color: var(--color-white); text-decoration: none; }

.footer-note p { font-size: 0.82rem; color: #7a8ea8; line-height: 1.7; margin-bottom: 6px; }

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .site-nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    display: none;
    z-index: 99;
  }

  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; padding: 12px 16px 20px; gap: 4px; }
  .site-nav a { padding: 12px 16px; }

  .hero { padding: 64px 0; }
  .section { padding: 48px 0; }

  .product-layout { grid-template-columns: 1fr; }
  .product-gallery { position: static; }

  .contact-layout { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; gap: 32px; }

  .cta-strip .container { flex-direction: column; gap: 16px; text-align: center; }

  .card-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .card-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
}