/* === Static Site Resets === */
* { box-sizing: border-box; }
body {
  font-family: 'Montserrat', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { text-decoration: none; }
img { max-width: 100%; height: auto; }
.container-xl {
  width: 100%;
  max-width: 1320px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 16px;
  padding-right: 16px;
}
/* Frappe base list reset */
ul, ol { padding-left: 0; margin: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin-top: 0; }
p { margin-top: 0; }


:root {
  --kor-primary: #2c3e50;
  --kor-accent: #e67e22;
  --kor-accent-hover: #d35400;
  --kor-green: #27ae60;
  --kor-light-bg: #f8f9fa;
  --kor-border: #e9ecef;
  --kor-text: #2c3e50;
  --kor-text-muted: #6c757d;
  --kor-card-shadow: 0 2px 8px rgba(0,0,0,0.08);
  --kor-card-hover-shadow: 0 8px 25px rgba(0,0,0,0.15);
  --kor-radius: 8px;
}

/* ===== RESET PAGE STYLES ===== */






/* ===== SHOP HEADER ===== */
.kor-header {
  background: var(--kor-primary);
  color: white;
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
}
.kor-header-top {
  background: rgba(0,0,0,0.15);
  padding: 6px 0;
  font-size: 13px;
}
.kor-header-top .container-xl {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.kor-header-top a { color: rgba(255,255,255,0.85); text-decoration: none; }
.kor-header-top a:hover { color: white; }
.kor-header-main {
  padding: 12px 0;
}
.kor-header-main .container-xl {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.kor-logo {
  font-size: 24px;
  font-weight: 800;
  color: white;
  text-decoration: none;
  letter-spacing: 1px;
  white-space: nowrap;
}
.kor-logo span { color: var(--kor-accent); }
.kor-search {
  flex: 1;
  max-width: 500px;
  position: relative;
}
.kor-search input {
  width: 100%;
  padding: 10px 42px 10px 16px;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 25px;
  background: rgba(255,255,255,0.1);
  color: white;
  font-size: 14px;
  transition: all 0.3s;
}
.kor-search input::placeholder { color: rgba(255,255,255,0.5); }
.kor-search input:focus {
  outline: none;
  border-color: var(--kor-accent);
  background: rgba(255,255,255,0.15);
}
.kor-search-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--kor-accent);
  border: none;
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.kor-nav-links {
  display: flex;
  gap: 20px;
  align-items: center;
}
.kor-nav-links a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.kor-nav-links a:hover { color: var(--kor-accent); }

/* Mobile menu toggle */
.kor-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 24px;
  cursor: pointer;
  padding: 5px;
}

/* ===== CATEGORY NAV BAR ===== */
.kor-categories-bar {
  background: white;
  border-bottom: 2px solid var(--kor-border);
  padding: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.kor-categories-bar .container-xl {
  display: flex;
  gap: 0;
  white-space: nowrap;
}
.kor-cat-link {
  padding: 12px 18px;
  color: var(--kor-text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
  cursor: pointer;
}
.kor-cat-link:hover, .kor-cat-link.active {
  color: var(--kor-accent);
  border-bottom-color: var(--kor-accent);
  background: rgba(230,126,34,0.05);
}

/* ===== MAIN LAYOUT ===== */
.kor-shop-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 20px 15px;
  display: flex;
  gap: 24px;
}

/* ===== SIDEBAR ===== */
.kor-sidebar {
  width: 280px;
  min-width: 280px;
  flex-shrink: 0;
}
.kor-sidebar-card {
  background: white;
  border-radius: var(--kor-radius);
  box-shadow: var(--kor-card-shadow);
  overflow: hidden;
  margin-bottom: 16px;
}
.kor-sidebar-title {
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 700;
  color: var(--kor-text);
  border-bottom: 2px solid var(--kor-border);
  margin: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.kor-clear-filters {
  font-size: 12px;
  color: var(--kor-accent);
  cursor: pointer;
  font-weight: 500;
}
.kor-clear-filters:hover { text-decoration: underline; }

/* Category accordion */
.kor-cat-group {
  border-bottom: 1px solid var(--kor-border);
}
.kor-cat-group:last-child { border-bottom: none; }
.kor-cat-parent {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  color: var(--kor-text);
  transition: all 0.2s;
  user-select: none;
}
.kor-cat-parent:hover {
  background: rgba(230,126,34,0.05);
  color: var(--kor-accent);
}
.kor-cat-parent.active {
  color: var(--kor-accent);
  background: rgba(230,126,34,0.08);
}
.kor-cat-arrow {
  transition: transform 0.3s;
  font-size: 12px;
  opacity: 0.5;
}
.kor-cat-parent.open .kor-cat-arrow { transform: rotate(180deg); }
.kor-cat-children {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.kor-cat-children.open { max-height: 500px; }
.kor-cat-child {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 20px 8px 36px;
  font-size: 13px;
  color: var(--kor-text-muted);
  cursor: pointer;
  transition: all 0.2s;
}
.kor-cat-child:hover {
  background: rgba(230,126,34,0.04);
  color: var(--kor-accent);
}
.kor-cat-child.active {
  color: var(--kor-accent);
  font-weight: 600;
}
.kor-cat-count {
  background: var(--kor-light-bg);
  padding: 1px 8px;
  border-radius: 10px;
  font-size: 11px;
  color: var(--kor-text-muted);
}

/* Price filter */
.kor-price-filter { padding: 16px 20px; }
.kor-price-inputs {
  display: flex;
  gap: 10px;
  align-items: center;
}
.kor-price-inputs input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--kor-border);
  border-radius: 6px;
  font-size: 13px;
}
.kor-price-inputs span { color: var(--kor-text-muted); font-size: 13px; }
.kor-price-apply {
  margin-top: 12px;
  width: 100%;
  padding: 8px;
  background: var(--kor-accent);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.kor-price-apply:hover { background: var(--kor-accent-hover); }

/* ===== MAIN CONTENT ===== */
.kor-main {
  flex: 1;
  min-width: 0;
}

/* Toolbar */
.kor-toolbar {
  background: white;
  border-radius: var(--kor-radius);
  padding: 12px 20px;
  margin-bottom: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--kor-card-shadow);
  flex-wrap: wrap;
  gap: 10px;
}
.kor-results-count {
  font-size: 14px;
  color: var(--kor-text-muted);
}
.kor-results-count strong { color: var(--kor-text); }
.kor-toolbar-right {
  display: flex;
  gap: 12px;
  align-items: center;
}
.kor-sort-select {
  padding: 7px 12px;
  border: 1px solid var(--kor-border);
  border-radius: 6px;
  font-size: 13px;
  color: var(--kor-text);
  background: white;
  cursor: pointer;
}
.kor-view-toggle {
  display: flex;
  gap: 4px;
}
.kor-view-btn {
  width: 34px;
  height: 34px;
  border: 1px solid var(--kor-border);
  background: white;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--kor-text-muted);
  transition: all 0.2s;
}
.kor-view-btn.active, .kor-view-btn:hover {
  background: var(--kor-accent);
  color: white;
  border-color: var(--kor-accent);
}

/* ===== PRODUCT GRID ===== */
.kor-products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.kor-products-grid.view-2 { grid-template-columns: repeat(2, 1fr); }
.kor-products-grid.view-4 { grid-template-columns: repeat(4, 1fr); }
.kor-products-grid.view-list { grid-template-columns: 1fr; }

/* ===== PRODUCT CARD ===== */
.kor-product-card {
  background: white;
  border-radius: var(--kor-radius);
  overflow: hidden;
  box-shadow: var(--kor-card-shadow);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  display: flex;
  flex-direction: column;
}
.kor-product-card:hover {
  box-shadow: var(--kor-card-hover-shadow);
  transform: translateY(-4px);
}
.kor-product-image-wrapper {
  position: relative;
  padding-top: 75%;
  overflow: hidden;
  background: #f5f5f5;
}
.kor-product-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  transition: transform 0.4s;
}
.kor-product-card:hover .kor-product-image {
  transform: scale(1.05);
}
.kor-product-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  z-index: 2;
}
.kor-badge-sale { background: #e74c3c; color: white; }
.kor-badge-new { background: var(--kor-green); color: white; }
.kor-badge-stock { background: var(--kor-accent); color: white; }
.kor-product-info {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.kor-product-group {
  font-size: 11px;
  color: var(--kor-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.kor-product-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--kor-text);
  margin: 0 0 8px 0;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.kor-product-name a {
  color: inherit;
  text-decoration: none;
}
.kor-product-name a:hover { color: var(--kor-accent); }
.kor-product-desc {
  font-size: 13px;
  color: var(--kor-text-muted);
  margin-bottom: 12px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.kor-product-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--kor-border);
}
.kor-product-price {
  font-size: 20px;
  font-weight: 800;
  color: var(--kor-green);
}
.kor-product-price-usd {
  font-size: 12px;
  color: var(--kor-text-muted);
  margin-top: 2px;
}
.kor-product-stock {
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.kor-stock-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.kor-stock-dot.in-stock { background: var(--kor-green); }
.kor-stock-dot.low-stock { background: #f39c12; }
.kor-stock-dot.no-stock { background: #e74c3c; }
.kor-product-actions {
  display: flex;
  gap: 8px;
}
.kor-btn-detail {
  padding: 8px 16px;
  background: var(--kor-accent);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
}
.kor-btn-detail:hover {
  background: var(--kor-accent-hover);
  color: white;
  text-decoration: none;
}
.kor-btn-whatsapp {
  width: 36px;
  height: 36px;
  background: #25d366;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.2s;
  text-decoration: none;
}
.kor-btn-whatsapp:hover { background: #128c7e; color: white; }

/* ===== LIST VIEW ===== */
.view-list .kor-product-card {
  flex-direction: row;
}
.view-list .kor-product-image-wrapper {
  width: 200px;
  min-width: 200px;
  padding-top: 0;
  height: 160px;
}
.view-list .kor-product-info {
  padding: 16px 20px;
}

/* ===== PAGINATION ===== */
.kor-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-top: 30px;
  padding-bottom: 30px;
}
.kor-page-btn {
  padding: 8px 14px;
  border: 1px solid var(--kor-border);
  background: white;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  color: var(--kor-text);
  transition: all 0.2s;
  text-decoration: none;
}
.kor-page-btn:hover, .kor-page-btn.active {
  background: var(--kor-accent);
  color: white;
  border-color: var(--kor-accent);
}
.kor-page-btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ===== LOADING ===== */
.kor-loading {
  text-align: center;
  padding: 60px 20px;
  color: var(--kor-text-muted);
}
.kor-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--kor-border);
  border-top: 3px solid var(--kor-accent);
  border-radius: 50%;
  animation: kor-spin 0.8s linear infinite;
  margin: 0 auto 16px;
}
@keyframes kor-spin { to { transform: rotate(360deg); } }
.kor-no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--kor-text-muted);
}
.kor-no-results svg { margin-bottom: 16px; opacity: 0.3; }

/* ===== WHATSAPP FLOAT ===== */
.kor-wa-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(37,211,102,0.4);
  cursor: pointer;
  z-index: 9999;
  transition: all 0.3s;
  text-decoration: none;
  color: white;
  font-size: 28px;
}
.kor-wa-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37,211,102,0.5);
  color: white;
}
.kor-wa-float-label {
  position: fixed;
  bottom: 36px;
  right: 92px;
  background: white;
  padding: 8px 14px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  font-size: 13px;
  font-weight: 600;
  color: var(--kor-text);
  z-index: 9998;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
  white-space: nowrap;
}
.kor-wa-float:hover + .kor-wa-float-label { opacity: 1; }

/* ===== FOOTER ===== */
.kor-footer {
  background: var(--kor-primary);
  color: rgba(255,255,255,0.7);
  padding: 40px 0 20px;
  margin-top: 40px;
}
.kor-footer-grid {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 15px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}
.kor-footer h4 {
  color: white;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}
.kor-footer p { font-size: 14px; line-height: 1.6; margin-bottom: 8px; }
.kor-footer a { color: rgba(255,255,255,0.7); text-decoration: none; }
.kor-footer a:hover { color: var(--kor-accent); }
.kor-footer-bottom {
  max-width: 1320px;
  margin: 30px auto 0;
  padding: 20px 15px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 13px;
}

/* ===== MOBILE SIDEBAR ===== */
.kor-sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 1001;
}
.kor-mobile-filter-btn {
  display: none;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: white;
  border: 1px solid var(--kor-border);
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
  .kor-products-grid { grid-template-columns: repeat(3, 1fr); }
  .kor-products-grid.view-4 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 992px) {
  .kor-products-grid { grid-template-columns: repeat(2, 1fr); }
  .kor-products-grid.view-4, .kor-products-grid.view-3 { grid-template-columns: repeat(2, 1fr); }
  .kor-sidebar {
    position: fixed;
    top: 0;
    left: -300px;
    height: 100vh;
    z-index: 1002;
    background: white;
    overflow-y: auto;
    transition: left 0.3s;
    box-shadow: 2px 0 15px rgba(0,0,0,0.1);
  }
  .kor-sidebar.open { left: 0; }
  .kor-sidebar-overlay.open { display: block; }
  .kor-mobile-filter-btn { display: flex; }
  .kor-search { max-width: 300px; }
}
@media (max-width: 768px) {
  .kor-header-top { display: none; }
  .kor-mobile-toggle { display: block; }
  .kor-nav-links { display: none; }
  .kor-nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--kor-primary);
    padding: 10px 20px;
    box-shadow: 0 5px 10px rgba(0,0,0,0.2);
  }
  .kor-search { max-width: 100%; flex: 1; }
  .kor-logo { font-size: 18px; }
  .kor-products-grid, .kor-products-grid.view-2,
  .kor-products-grid.view-3, .kor-products-grid.view-4 {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .kor-product-price { font-size: 16px; }
  .kor-product-name { font-size: 13px; }
  .kor-shop-container { padding: 12px 10px; gap: 0; }
  .kor-toolbar { padding: 10px 14px; }
  .view-list .kor-product-card { flex-direction: column; }
  .view-list .kor-product-image-wrapper { width: 100%; height: auto; padding-top: 75%; }
}
@media (max-width: 480px) {
  .kor-products-grid, .kor-products-grid.view-2,
  .kor-products-grid.view-3, .kor-products-grid.view-4 {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .kor-product-info { padding: 10px; }
  .kor-product-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
}


.kor-calc-section {
  background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
  padding: 60px 0;
  border-top: 1px solid #eee;
  border-bottom: 1px solid #eee;
}
.kor-calc-wrap {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 20px;
}
.kor-calc-header {
  text-align: center;
  margin-bottom: 40px;
}
.kor-calc-header h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 32px;
  font-weight: 900;
  color: #1a1a2e;
  margin: 0 0 8px 0;
}
.kor-calc-header h2 span { color: #FF6B00; }
.kor-calc-header p {
  color: #666;
  font-size: 15px;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}
.kor-calc-badge {
  display: inline-block;
  background: rgba(255,107,0,0.1);
  color: #FF6B00;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 2px;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 12px;
  font-family: 'Montserrat', sans-serif;
}
.kor-calc-body {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 30px;
  align-items: start;
}
.kor-calc-left {
  background: white;
  border-radius: 16px;
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
  border: 1px solid #eee;
  overflow: hidden;
}
/* Tabs */
.kor-calc-tabs {
  display: flex;
  border-bottom: 2px solid #f0f0f0;
  overflow-x: auto;
}
.kor-calc-tab {
  flex: 1;
  padding: 14px 16px;
  font-size: 12px;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  text-align: center;
  cursor: pointer;
  color: #888;
  border: none;
  background: none;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
  white-space: nowrap;
}
.kor-calc-tab:hover { color: #1a1a2e; }
.kor-calc-tab.active {
  color: #FF6B00;
  border-bottom-color: #FF6B00;
  background: rgba(255,107,0,0.03);
}
/* Appliance grid */
.kor-calc-grid {
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  max-height: 420px;
  overflow-y: auto;
}
.kor-calc-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #f0f0f0;
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}
.kor-calc-item:hover { border-color: #FF6B00; background: rgba(255,107,0,0.02); }
.kor-calc-item.selected {
  border-color: #FF6B00;
  background: rgba(255,107,0,0.06);
}
.kor-calc-item-icon {
  font-size: 20px;
  width: 32px;
  text-align: center;
  flex-shrink: 0;
}
.kor-calc-item-info {
  flex: 1;
  min-width: 0;
}
.kor-calc-item-name {
  font-size: 13px;
  font-weight: 600;
  color: #1a1a2e;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.kor-calc-item-watts {
  font-size: 11px;
  color: #999;
}
.kor-calc-item-qty {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.kor-calc-qty-btn {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  border: 1px solid #ddd;
  background: white;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #555;
  transition: all 0.15s;
}
.kor-calc-qty-btn:hover { border-color: #FF6B00; color: #FF6B00; }
.kor-calc-qty-val {
  font-size: 14px;
  font-weight: 700;
  color: #1a1a2e;
  min-width: 20px;
  text-align: center;
}

/* Right panel */
.kor-calc-right {
  position: sticky;
  top: 80px;
}
.kor-calc-summary {
  background: #1a1a2e;
  border-radius: 16px;
  padding: 28px 24px;
  color: white;
}
.kor-calc-summary-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 20px;
  text-transform: uppercase;
}
.kor-calc-meter {
  margin-bottom: 24px;
}
.kor-calc-meter-bar {
  height: 8px;
  background: rgba(255,255,255,0.1);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 8px;
}
.kor-calc-meter-fill {
  height: 100%;
  background: linear-gradient(90deg, #25D366, #FF6B00, #e74c3c);
  border-radius: 10px;
  transition: width 0.4s ease;
  width: 0%;
}
.kor-calc-meter-labels {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: rgba(255,255,255,0.4);
}
.kor-calc-total {
  text-align: center;
  margin-bottom: 24px;
}
.kor-calc-total-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 52px;
  font-weight: 900;
  color: #FF6B00;
  line-height: 1;
}
.kor-calc-total-unit {
  font-size: 18px;
  color: rgba(255,255,255,0.5);
  font-weight: 500;
  margin-left: 4px;
}
.kor-calc-total-label {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  margin-top: 4px;
}
.kor-calc-selected-list {
  max-height: 150px;
  overflow-y: auto;
  margin-bottom: 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 16px;
}
.kor-calc-sel-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  padding: 4px 0;
  color: rgba(255,255,255,0.6);
}
.kor-calc-sel-item .watts {
  color: #FF6B00;
  font-weight: 600;
}
/* Filters */
.kor-calc-filters {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.kor-calc-filter-btn {
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.05);
  color: rgba(255,255,255,0.6);
  transition: all 0.2s;
}
.kor-calc-filter-btn:hover { border-color: rgba(255,107,0,0.4); color: white; }
.kor-calc-filter-btn.active {
  background: rgba(255,107,0,0.2);
  border-color: #FF6B00;
  color: #FF6B00;
}
/* Results */
.kor-calc-result-btn {
  width: 100%;
  padding: 14px;
  border-radius: 10px;
  background: #FF6B00;
  color: white;
  border: none;
  font-size: 14px;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.kor-calc-result-btn:hover { background: #e55a00; transform: translateY(-1px); }

/* Results panel */
.kor-calc-results {
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 30px rgba(0,0,0,0.08);
  border: 1px solid #eee;
  margin-top: 30px;
  overflow: hidden;
  display: none;
}
.kor-calc-results.show { display: block; }
.kor-calc-results-header {
  background: #1a1a2e;
  color: white;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.kor-calc-results-header h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  font-weight: 800;
  margin: 0;
}
.kor-calc-results-header .ai-badge {
  background: linear-gradient(135deg, #FF6B00, #e74c3c);
  font-size: 10px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 12px;
  letter-spacing: 1px;
}
.kor-calc-recs {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.kor-calc-rec {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid #f0f0f0;
  transition: all 0.2s;
}
.kor-calc-rec:hover { border-color: #FF6B00; box-shadow: 0 4px 16px rgba(255,107,0,0.1); }
.kor-calc-rec.best {
  border-color: #FF6B00;
  background: rgba(255,107,0,0.03);
  position: relative;
}
.kor-calc-rec.best::before {
  content: 'MEJOR OPCION';
  position: absolute;
  top: -8px;
  left: 16px;
  background: #FF6B00;
  color: white;
  font-size: 9px;
  font-weight: 800;
  padding: 2px 10px;
  border-radius: 4px;
  letter-spacing: 1px;
  font-family: 'Montserrat', sans-serif;
}
.kor-calc-rec-rank {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: #f5f5f7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 14px;
  color: #1a1a2e;
}
.kor-calc-rec.best .kor-calc-rec-rank { background: #FF6B00; color: white; }
.kor-calc-rec-info h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 15px;
  font-weight: 800;
  color: #1a1a2e;
  margin: 0 0 3px 0;
}
.kor-calc-rec-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.kor-calc-rec-tag {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  background: #f0f0f0;
  color: #666;
}
.kor-calc-rec-tag.fuel { background: rgba(39,174,96,0.1); color: #27ae60; }
.kor-calc-rec-tag.kva { background: rgba(255,107,0,0.1); color: #FF6B00; }
.kor-calc-rec-right {
  text-align: right;
  flex-shrink: 0;
}
.kor-calc-rec-price {
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  font-weight: 800;
  color: #1a1a2e;
}
.kor-calc-rec-link {
  display: inline-block;
  font-size: 12px;
  color: #FF6B00;
  font-weight: 700;
  text-decoration: none;
  margin-top: 4px;
}
.kor-calc-rec-link:hover { text-decoration: underline; }

/* Responsive */
@media (max-width: 992px) {
  .kor-calc-body { grid-template-columns: 1fr; }
  .kor-calc-right { position: static; }
}
@media (max-width: 768px) {
  .kor-calc-section { padding: 40px 0; }
  .kor-calc-header h2 { font-size: 24px; }
  .kor-calc-grid { grid-template-columns: 1fr; max-height: 350px; }
  .kor-calc-total-num { font-size: 40px; }
  .kor-calc-rec { grid-template-columns: auto 1fr; }
  .kor-calc-rec-right { grid-column: 2; }
}
@media (max-width: 480px) {
  .kor-calc-header h2 { font-size: 20px; }
  .kor-calc-tabs { font-size: 10px; }
  .kor-calc-tab { padding: 10px 8px; font-size: 10px; }
  .kor-calc-summary { padding: 20px 16px; }
}


/* ===== HERO SECTION v2 - WITH PRODUCT IMAGE ===== */
.kor-hero-section {
  margin: 0;
  padding: 0;
}
.kor-hero-bg {
  background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 40%, #2d1a0a 100%);
  padding: 48px 0 40px;
  position: relative;
  overflow: hidden;
}
.kor-hero-bg::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(255,107,0,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.kor-hero-bg::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,150,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.kor-hero-content {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.kor-hero-badge {
  display: inline-block;
  background: rgba(255,107,0,0.15);
  border: 1px solid rgba(255,107,0,0.3);
  color: #FF6B00;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 2px;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 16px;
  font-family: 'Montserrat', sans-serif;
}
.kor-hero-text h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 44px;
  font-weight: 900;
  color: white;
  margin: 0 0 16px 0;
  line-height: 1.1;
}
.kor-hero-text h1 span { color: #FF6B00; }
.kor-hero-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 500px;
}
.kor-hero-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 28px;
}
.kor-hero-feat {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
}
.kor-hero-feat i {
  font-style: normal;
  font-size: 16px;
}
.kor-hero-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.kor-hero-btn-primary {
  background: #FF6B00;
  color: white;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  font-family: 'Montserrat', sans-serif;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.kor-hero-btn-primary:hover {
  background: #e55a00;
  transform: translateY(-2px);
  color: white;
  text-decoration: none;
}
.kor-hero-btn-wa {
  background: #25D366;
  color: white;
  padding: 14px 24px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  font-family: 'Montserrat', sans-serif;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.kor-hero-btn-wa:hover {
  background: #1da851;
  transform: translateY(-2px);
  color: white;
  text-decoration: none;
}

/* ── Hero Visual (right side) ── */
.kor-hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.kor-hero-img-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}
.kor-hero-img-wrap::before {
  content: '';
  position: absolute;
  width: 85%;
  height: 85%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,107,0,0.10) 0%, transparent 70%);
  pointer-events: none;
}
.kor-hero-product-img {
  max-width: 100%;
  max-height: 320px;
  object-fit: contain;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.5));
  animation: heroFloat 4s ease-in-out infinite;
}
@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ── Hero Model Cards (below image) ── */
.kor-hero-cards-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  width: 100%;
}
.kor-hero-card-sm {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 12px 10px;
  text-decoration: none;
  text-align: center;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}
.kor-hero-card-sm:hover {
  background: rgba(255,107,0,0.1);
  border-color: rgba(255,107,0,0.4);
  transform: translateY(-2px);
  text-decoration: none;
}
.kor-hero-card-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  background: #FF6B00;
  color: white;
  font-size: 7px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 3px;
  letter-spacing: 1px;
  font-family: 'Montserrat', sans-serif;
}
.kor-hero-card-model {
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  font-weight: 900;
  color: white;
  letter-spacing: 0.5px;
}
.kor-hero-card-spec {
  font-size: 10px;
  color: rgba(255,255,255,0.45);
  font-weight: 500;
  margin-top: 2px;
}
.kor-hero-card-price {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 800;
  color: #FF6B00;
  margin-top: 4px;
}

/* ── Hero Responsive ── */
@media (max-width: 992px) {
  .kor-hero-content { grid-template-columns: 1fr; text-align: center; }
  .kor-hero-desc { margin: 0 auto 24px; }
  .kor-hero-features { justify-content: center; }
  .kor-hero-btns { justify-content: center; }
  .kor-hero-product-img { max-height: 260px; }
  .kor-hero-cards-row { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 768px) {
  .kor-hero-bg { padding: 32px 0; }
  .kor-hero-text h1 { font-size: 30px; }
  .kor-hero-desc { font-size: 14px; }
  .kor-hero-features { grid-template-columns: 1fr; text-align: left; }
  .kor-hero-product-img { max-height: 220px; }
  .kor-hero-cards-row { grid-template-columns: repeat(2, 1fr); gap: 8px; }
}
@media (max-width: 480px) {
  .kor-hero-bg { padding: 24px 0; }
  .kor-hero-text h1 { font-size: 24px; }
  .kor-hero-btns { flex-direction: column; }
  .kor-hero-btn-primary, .kor-hero-btn-wa { text-align: center; justify-content: center; }
  .kor-hero-product-img { max-height: 180px; }
  .kor-hero-cards-row { grid-template-columns: repeat(2, 1fr); }
  .kor-hero-card-sm { padding: 10px 8px; }
  .kor-hero-card-model { font-size: 14px; }
}




/* ===== CALCULADORA DE POTENCIA v3 ===== */
#kor-calc-section {
  background: linear-gradient(180deg, #f8f9fa 0%, #fff 100%);
  padding: 60px 0;
  border-top: 1px solid #eee;
  border-bottom: 1px solid #eee;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  box-sizing: border-box;
}
#kor-calc-section *, #kor-calc-section *::before, #kor-calc-section *::after {
  box-sizing: border-box;
}
#kor-calc-section .kc-wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}
#kor-calc-section .kc-header {
  text-align: center;
  margin-bottom: 36px;
}
#kor-calc-section .kc-header h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 32px;
  font-weight: 900;
  color: #1a1a2e;
  margin: 0 0 8px 0;
  line-height: 1.2;
}
#kor-calc-section .kc-header h2 span {
  color: var(--kor-accent, #e67e22);
}
#kor-calc-section .kc-header p {
  color: #666;
  font-size: 15px;
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.6;
}
#kor-calc-section .kc-badge {
  display: inline-block;
  background: rgba(230,126,34,0.1);
  color: var(--kor-accent, #e67e22);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 2px;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 12px;
  font-family: 'Montserrat', sans-serif;
}
#kor-calc-section .kc-body {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 24px;
  align-items: start;
}
/* LEFT PANEL - Appliance selector */
#kor-calc-section .kc-left {
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
  border: 1px solid #eee;
  overflow: hidden;
}
#kor-calc-section .kc-tabs {
  display: flex;
  border-bottom: 2px solid #f0f0f0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
#kor-calc-section .kc-tabs::-webkit-scrollbar { display: none; }
#kor-calc-section .kc-tab {
  flex: 0 0 auto;
  padding: 12px 14px;
  font-size: 12px;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  text-align: center;
  cursor: pointer;
  color: #888;
  border: none;
  background: none;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
  white-space: nowrap;
}
#kor-calc-section .kc-tab:hover { color: #1a1a2e; }
#kor-calc-section .kc-tab.active {
  color: var(--kor-accent, #e67e22);
  border-bottom-color: var(--kor-accent, #e67e22);
  background: rgba(230,126,34,0.03);
}
#kor-calc-section .kc-grid {
  padding: 14px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  max-height: 460px;
  overflow-y: auto;
}
#kor-calc-section .kc-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #f0f0f0;
  cursor: pointer;
  transition: all 0.15s;
  user-select: none;
  background: white;
}
#kor-calc-section .kc-item:hover {
  border-color: var(--kor-accent, #e67e22);
  background: rgba(230,126,34,0.02);
}
#kor-calc-section .kc-item.sel {
  border-color: var(--kor-accent, #e67e22);
  background: rgba(230,126,34,0.06);
}
#kor-calc-section .kc-item-icon {
  font-size: 20px;
  width: 30px;
  text-align: center;
  flex-shrink: 0;
  line-height: 1;
}
#kor-calc-section .kc-item-info { flex: 1; min-width: 0; }
#kor-calc-section .kc-item-name {
  font-size: 12px;
  font-weight: 600;
  color: #1a1a2e;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}
#kor-calc-section .kc-item-watts {
  font-size: 10px;
  color: #999;
  margin-top: 2px;
}
#kor-calc-section .kc-phase {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 3px;
  margin-left: 4px;
  vertical-align: middle;
}
#kor-calc-section .kc-phase.tri {
  background: rgba(155,89,182,0.12);
  color: #8e44ad;
}
#kor-calc-section .kc-phase.mono {
  background: rgba(41,128,185,0.1);
  color: #2980b9;
}
#kor-calc-section .kc-qty {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
#kor-calc-section .kc-qty-btn {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  border: 1px solid #ddd;
  background: white;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #555;
  transition: all 0.15s;
  line-height: 1;
  padding: 0;
}
#kor-calc-section .kc-qty-btn:hover {
  border-color: var(--kor-accent, #e67e22);
  color: var(--kor-accent, #e67e22);
}
#kor-calc-section .kc-qty-val {
  font-size: 14px;
  font-weight: 700;
  color: #1a1a2e;
  min-width: 20px;
  text-align: center;
}
/* RIGHT PANEL - Summary */
#kor-calc-section .kc-right {
  position: sticky;
  top: 80px;
}
#kor-calc-section .kc-summary {
  background: #1a1a2e;
  border-radius: 14px;
  padding: 22px 18px;
  color: white;
}
#kor-calc-section .kc-stitle {
  font-family: 'Montserrat', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: rgba(255,255,255,0.45);
  margin-bottom: 14px;
  text-transform: uppercase;
}
#kor-calc-section .kc-total {
  text-align: center;
  margin-bottom: 14px;
}
#kor-calc-section .kc-total-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 48px;
  font-weight: 900;
  color: var(--kor-accent, #e67e22);
  line-height: 1;
}
#kor-calc-section .kc-total-unit {
  font-size: 16px;
  color: rgba(255,255,255,0.5);
  font-weight: 500;
  margin-left: 4px;
}
#kor-calc-section .kc-total-label {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  margin-top: 6px;
}
/* Meter */
#kor-calc-section .kc-meter { margin-bottom: 14px; }
#kor-calc-section .kc-meter-bar {
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 5px;
}
#kor-calc-section .kc-meter-fill {
  height: 100%;
  background: linear-gradient(90deg, #27ae60, #e67e22, #e74c3c);
  border-radius: 10px;
  transition: width 0.4s ease;
  width: 0%;
}
#kor-calc-section .kc-meter-labels {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  color: rgba(255,255,255,0.3);
}
/* Stats */
#kor-calc-section .kc-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 14px;
}
#kor-calc-section .kc-stat {
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  padding: 10px;
  text-align: center;
}
#kor-calc-section .kc-stat-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 15px;
  font-weight: 800;
  color: white;
}
#kor-calc-section .kc-stat-label {
  font-size: 9px;
  color: rgba(255,255,255,0.35);
  margin-top: 2px;
}
/* Simultaneity */
#kor-calc-section .kc-simult {
  margin-bottom: 14px;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 14px;
}
#kor-calc-section .kc-simult-hdr {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
#kor-calc-section .kc-simult-label {
  font-size: 11px;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
}
#kor-calc-section .kc-simult-val {
  font-size: 14px;
  font-weight: 800;
  color: var(--kor-accent, #e67e22);
  font-family: 'Montserrat', sans-serif;
}
#kor-calc-section .kc-simult input[type="range"] {
  width: 100%;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255,255,255,0.12);
  border-radius: 4px;
  outline: none;
  margin: 4px 0 8px 0;
}
#kor-calc-section .kc-simult input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--kor-accent, #e67e22);
  cursor: pointer;
  border: 3px solid #1a1a2e;
}
#kor-calc-section .kc-simult input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--kor-accent, #e67e22);
  cursor: pointer;
  border: 3px solid #1a1a2e;
}
#kor-calc-section .kc-presets {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
#kor-calc-section .kc-preset {
  font-size: 10px;
  padding: 4px 9px;
  border-radius: 5px;
  border: 1px solid rgba(255,255,255,0.12);
  background: none;
  color: rgba(255,255,255,0.45);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.15s;
}
#kor-calc-section .kc-preset:hover {
  border-color: rgba(230,126,34,0.5);
  color: white;
}
#kor-calc-section .kc-preset.act {
  border-color: var(--kor-accent, #e67e22);
  color: var(--kor-accent, #e67e22);
  background: rgba(230,126,34,0.15);
}
#kor-calc-section .kc-fs-tip {
  font-size: 10px;
  color: rgba(255,255,255,0.3);
  margin-top: 6px;
  font-style: italic;
}
/* Selected items list */
#kor-calc-section .kc-sel-list {
  max-height: 110px;
  overflow-y: auto;
  margin-bottom: 14px;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 10px;
}
#kor-calc-section .kc-sel-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  padding: 3px 0;
  color: rgba(255,255,255,0.5);
}
#kor-calc-section .kc-sel-row .w {
  color: var(--kor-accent, #e67e22);
  font-weight: 600;
}
/* Fuel filters */
#kor-calc-section .kc-filters {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
#kor-calc-section .kc-fbtn {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  color: rgba(255,255,255,0.5);
  transition: all 0.2s;
}
#kor-calc-section .kc-fbtn:hover {
  border-color: rgba(230,126,34,0.4);
  color: white;
}
#kor-calc-section .kc-fbtn.act {
  background: rgba(230,126,34,0.2);
  border-color: var(--kor-accent, #e67e22);
  color: var(--kor-accent, #e67e22);
}
#kor-calc-section .kc-go-btn {
  width: 100%;
  padding: 14px;
  border-radius: 10px;
  background: var(--kor-accent, #e67e22);
  color: white;
  border: none;
  font-size: 14px;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
#kor-calc-section .kc-go-btn:hover {
  background: var(--kor-accent-hover, #d35400);
  transform: translateY(-1px);
}
/* RESULTS */
#kor-calc-section .kc-results {
  background: white;
  border-radius: 14px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  border: 1px solid #eee;
  margin-top: 28px;
  overflow: hidden;
  display: none;
}
#kor-calc-section .kc-results.show { display: block; }
#kor-calc-section .kc-res-header {
  background: #1a1a2e;
  color: white;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
}
#kor-calc-section .kc-res-header h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  font-weight: 800;
  margin: 0;
  flex: 1;
}
#kor-calc-section .kc-res-header .ai-b {
  background: linear-gradient(135deg, #e67e22, #e74c3c);
  font-size: 10px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 12px;
  letter-spacing: 1px;
}
#kor-calc-section .kc-res-note {
  padding: 14px 22px;
  background: rgba(230,126,34,0.04);
  border-bottom: 1px solid #f0f0f0;
  font-size: 12px;
  color: #555;
  line-height: 1.6;
}
#kor-calc-section .kc-res-note strong { color: var(--kor-accent, #e67e22); }
#kor-calc-section .kc-recs {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
#kor-calc-section .kc-rec {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid #f0f0f0;
  transition: all 0.2s;
}
#kor-calc-section .kc-rec:hover {
  border-color: var(--kor-accent, #e67e22);
  box-shadow: 0 4px 16px rgba(230,126,34,0.1);
}
#kor-calc-section .kc-rec.best {
  border-color: var(--kor-accent, #e67e22);
  background: rgba(230,126,34,0.03);
  position: relative;
}
#kor-calc-section .kc-rec.best::before {
  content: 'MEJOR OPCION';
  position: absolute;
  top: -9px;
  left: 16px;
  background: var(--kor-accent, #e67e22);
  color: white;
  font-size: 9px;
  font-weight: 800;
  padding: 2px 10px;
  border-radius: 4px;
  letter-spacing: 1px;
  font-family: 'Montserrat', sans-serif;
}
#kor-calc-section .kc-rec-rank {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: #f5f5f7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 14px;
  color: #1a1a2e;
}
#kor-calc-section .kc-rec.best .kc-rec-rank {
  background: var(--kor-accent, #e67e22);
  color: white;
}
#kor-calc-section .kc-rec-info h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 800;
  color: #1a1a2e;
  margin: 0 0 4px 0;
}
#kor-calc-section .kc-rec-tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
#kor-calc-section .kc-tag {
  font-size: 9px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  background: #f0f0f0;
  color: #666;
}
#kor-calc-section .kc-tag.fuel { background: rgba(39,174,96,0.1); color: #27ae60; }
#kor-calc-section .kc-tag.kva { background: rgba(230,126,34,0.1); color: #e67e22; }
#kor-calc-section .kc-tag.tri { background: rgba(155,89,182,0.1); color: #8e44ad; }
#kor-calc-section .kc-rec-right { text-align: right; flex-shrink: 0; }
#kor-calc-section .kc-rec-price {
  font-family: 'Montserrat', sans-serif;
  font-size: 15px;
  font-weight: 800;
  color: #1a1a2e;
}
#kor-calc-section .kc-rec-link {
  display: inline-block;
  font-size: 11px;
  color: var(--kor-accent, #e67e22);
  font-weight: 700;
  text-decoration: none;
  margin-top: 3px;
}
#kor-calc-section .kc-rec-link:hover { text-decoration: underline; }
/* Empty state */
#kor-calc-section .kc-empty {
  text-align: center;
  padding: 40px 20px;
  color: #bbb;
}
#kor-calc-section .kc-empty-icon { font-size: 40px; margin-bottom: 8px; }
#kor-calc-section .kc-empty-text { font-size: 13px; }
/* Responsive */
@media (max-width: 992px) {
  #kor-calc-section .kc-body { grid-template-columns: 1fr; }
  #kor-calc-section .kc-right { position: static; }
}
@media (max-width: 768px) {
  #kor-calc-section { padding: 40px 0; }
  #kor-calc-section .kc-header h2 { font-size: 24px; }
  #kor-calc-section .kc-grid { grid-template-columns: 1fr; max-height: 320px; }
  #kor-calc-section .kc-total-num { font-size: 36px; }
  #kor-calc-section .kc-rec { grid-template-columns: 36px 1fr; }
  #kor-calc-section .kc-rec-right { grid-column: 2; }
}
@media (max-width: 480px) {
  #kor-calc-section .kc-header h2 { font-size: 20px; }
  #kor-calc-section .kc-tab { padding: 10px 10px; font-size: 10px; }
  #kor-calc-section .kc-summary { padding: 16px 12px; }
}