/* ==========================================================================
   ALCA SP - SUPPLIES & PARTS | DESIGN SYSTEM & STYLESHEET
   Paleta: Slate Navy (#111c27, #162332), Green (#6db83f, #74c243), Orange (#e67e22)
   ========================================================================== */

:root {
  /* Brand Colors */
  --bg-dark-primary: #111c27;
  --bg-dark-secondary: #162332;
  --bg-dark-tertiary: #1c2b3c;
  --bg-dark-card: #182535;
  --bg-dark-glass: rgba(17, 28, 39, 0.92);
  
  --brand-green: #6db83f;
  --brand-green-hover: #5ea434;
  --brand-green-light: #7cd447;
  --brand-green-glow: rgba(109, 184, 63, 0.35);
  --brand-green-soft: rgba(109, 184, 63, 0.12);
  
  --brand-orange: #e67e22;
  --brand-orange-light: #f39c12;
  
  --text-white: #ffffff;
  --text-light: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --text-dark: #0f172a;
  --text-body: #334155;
  
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --border-light: #e2e8f0;
  --border-dark: rgba(255, 255, 255, 0.1);
  --border-dark-hover: rgba(109, 184, 63, 0.4);
  
  /* Typography */
  --font-heading: 'Outfit', 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Shadows & Elevations */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.16);
  --shadow-card: 0 10px 30px rgba(17, 28, 39, 0.08);
  --shadow-green: 0 8px 20px rgba(109, 184, 63, 0.28);
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-light);
  color: var(--text-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  transition: all var(--transition-fast);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
}

.text-brand-green {
  color: var(--brand-green);
}

.text-orange {
  color: var(--brand-orange);
}

/* ==========================================================================
   TOP ANNOUNCEMENT BAR
   ========================================================================== */
.top-bar {
  background: #0d151e;
  color: var(--text-muted);
  font-size: 0.8125rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.top-bar-features {
  display: flex;
  align-items: center;
  gap: 20px;
}

.top-bar-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.top-bar-item .icon {
  color: var(--brand-green);
  font-size: 0.95rem;
}

.top-bar-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.top-bar-link {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.top-bar-link:hover {
  color: var(--brand-green);
}

.badge-tag {
  background: var(--brand-green-soft);
  color: var(--brand-green);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   MAIN HEADER / NAVIGATION
   ========================================================================== */
.main-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-dark-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: all var(--transition-normal);
}

.main-header.scrolled {
  background: var(--bg-dark-glass);
  backdrop-filter: blur(14px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo img {
  height: 48px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.brand-logo:hover img {
  transform: scale(1.02);
}

/* Navigation Links */
.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 28px;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--text-light);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 2px;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--brand-green);
}

.nav-link.active {
  color: var(--text-white);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--brand-green);
  border-radius: var(--radius-full);
  box-shadow: 0 0 10px var(--brand-green-glow);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-icon-btn {
  color: var(--text-white);
  font-size: 1.25rem;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  transition: all var(--transition-fast);
}

.header-icon-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--brand-green);
  border-color: rgba(109, 184, 63, 0.3);
}

.cart-count {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--brand-green);
  color: #0b190c;
  font-size: 0.7rem;
  font-weight: 800;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 8px var(--brand-green-glow);
  transition: transform var(--transition-fast);
}

/* WhatsApp CTA Button in Header (matching reference) */
.btn-header-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--brand-green);
  background: rgba(109, 184, 63, 0.06);
  color: var(--text-white);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.2px;
  transition: all var(--transition-fast);
}

.btn-header-whatsapp svg {
  width: 20px;
  height: 20px;
  fill: var(--brand-green);
  transition: transform var(--transition-fast);
}

.btn-header-whatsapp:hover {
  background: var(--brand-green);
  color: #0b1a0d;
  box-shadow: 0 0 16px var(--brand-green-glow);
  transform: translateY(-1px);
}

.btn-header-whatsapp:hover svg {
  fill: #0b1a0d;
  transform: scale(1.1);
}

.mobile-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text-white);
}

/* ==========================================================================
   HERO SLIDER SECTION (FAITHFUL TO REFERENCE IMAGE)
   ========================================================================== */
.hero-section {
  position: relative;
  background-color: var(--bg-dark-primary);
  min-height: 590px;
  overflow: hidden;
  color: var(--text-white);
}

.hero-slider-track {
  position: relative;
  width: 100%;
  min-height: 590px;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease-in-out, visibility 0.8s ease-in-out;
  background-size: cover;
  background-position: center right;
  display: flex;
  align-items: center;
}

.hero-slide.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

/* Dark Slate Gradient Overlay that replicates the visual in the reference */
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    rgba(17, 28, 39, 0.98) 0%,
    rgba(17, 28, 39, 0.94) 38%,
    rgba(17, 28, 39, 0.72) 58%,
    rgba(17, 28, 39, 0.15) 80%,
    rgba(17, 28, 39, 0.45) 100%
  );
  z-index: 1;
}

.hero-content-wrapper {
  position: relative;
  z-index: 2;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 60px 0 100px 0;
}

.hero-text-col {
  max-width: 650px;
}

/* Eyebrow tag with orange line */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.hero-eyebrow .eyebrow-accent {
  display: inline-block;
  width: 44px;
  height: 2.5px;
  background: var(--brand-orange);
  border-radius: var(--radius-full);
}

/* Main Headline */
.hero-headline {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 4.4vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-white);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-headline .highlight-green {
  color: var(--brand-green);
}

/* Hero Subtitle */
.hero-subtitle {
  font-size: 1.125rem;
  color: #cbd5e1;
  font-weight: 400;
  margin-bottom: 34px;
  max-width: 520px;
  line-height: 1.6;
}

/* Trust Pills Row */
.hero-trust-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 38px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.84rem;
  font-weight: 500;
  color: #e2e8f0;
}

.trust-icon-wrap {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.trust-item:hover .trust-icon-wrap {
  border-color: var(--brand-green);
  color: var(--brand-green);
  background: var(--brand-green-soft);
}

/* Hero Buttons */
.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: var(--brand-green);
  color: #0b1a0d;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  box-shadow: 0 6px 18px rgba(109, 184, 63, 0.35);
  transition: all var(--transition-fast);
}

.btn-hero-primary:hover {
  background-color: var(--brand-green-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(109, 184, 63, 0.45);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--text-white);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.btn-hero-secondary:hover {
  background-color: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

/* Vertical Tagline on the Right (as in reference) */
.hero-vertical-tagline {
  position: absolute;
  right: 32px;
  top: 14%;
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
  border-left: 2px solid rgba(255, 255, 255, 0.25);
  padding-left: 14px;
}

.hero-vertical-tagline span {
  display: block;
  opacity: 0.9;
}

/* Slider Controls */
.hero-slider-nav {
  position: absolute;
  bottom: 50px;
  left: 24px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  border: none;
  transition: all var(--transition-fast);
}

.hero-dot.active {
  width: 32px;
  border-radius: var(--radius-full);
  background: var(--brand-green);
  box-shadow: 0 0 10px var(--brand-green-glow);
}

/* ==========================================================================
   BRANDS & GUARANTEE BAR (OVERLAPPING HERO, MATCHING REFERENCE)
   ========================================================================== */
.brands-bar-wrapper {
  position: relative;
  z-index: 20;
  margin-top: -46px;
  margin-bottom: 60px;
}

.brands-bar-card {
  display: grid;
  grid-template-columns: 1fr 340px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 40px rgba(17, 28, 39, 0.14);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.8);
}

/* Left Brand Carousel Bar */
.brands-slider-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  background: #ffffff;
  position: relative;
}

.brand-nav-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #f1f5f9;
  color: #1e293b;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

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

.brands-carousel {
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex: 1;
  padding: 0 24px;
  gap: 36px;
  overflow-x: auto;
  scrollbar-width: none;
}

.brands-carousel::-webkit-scrollbar {
  display: none;
}

.brand-logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 140px;
  height: 54px;
  transition: transform var(--transition-fast);
}

.brand-logo-item img {
  max-height: 44px;
  max-width: 135px;
  object-fit: contain;
  transition: all var(--transition-fast);
}

.brand-logo-item:hover {
  transform: translateY(-2px);
}

/* Right Side: Compra Segura / Payment Methods */
.brands-secure-block {
  background: var(--bg-dark-secondary);
  color: var(--text-white);
  padding: 16px 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  transition: background var(--transition-fast);
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}

.brands-secure-block:hover {
  background: var(--bg-dark-primary);
}

.secure-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1.5px solid rgba(109, 184, 63, 0.6);
  background: rgba(109, 184, 63, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-green);
  font-size: 1.4rem;
  flex-shrink: 0;
}

.secure-info {
  display: flex;
  flex-direction: column;
}

.secure-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-white);
}

.secure-subtitle {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.secure-arrow {
  margin-left: auto;
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: transform var(--transition-fast);
}

.brands-secure-block:hover .secure-arrow {
  color: var(--brand-green);
  transform: translateX(4px);
}

/* ==========================================================================
   BTU CALCULATOR WIDGET SECTION
   ========================================================================== */
.calculator-section {
  padding: 50px 0;
}

.calculator-card {
  background: linear-gradient(135deg, var(--bg-dark-secondary) 0%, var(--bg-dark-primary) 100%);
  border-radius: var(--radius-lg);
  padding: 44px;
  color: var(--text-white);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.calculator-card::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--brand-green-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.calculator-header .badge-pill {
  display: inline-block;
  background: var(--brand-green-soft);
  color: var(--brand-green);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.calculator-header h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text-white);
}

.calculator-header p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.calc-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 8px;
}

.calc-select, .calc-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-md);
  color: var(--text-white);
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}

.calc-select:focus, .calc-input:focus {
  border-color: var(--brand-green);
  box-shadow: 0 0 10px var(--brand-green-glow);
  background: rgba(255, 255, 255, 0.12);
}

.calc-select option {
  background: var(--bg-dark-primary);
  color: var(--text-white);
}

/* Calculator Result Card */
.calc-result-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(109, 184, 63, 0.35);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: center;
  position: relative;
  backdrop-filter: blur(10px);
}

.calc-result-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.calc-result-value {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--brand-green);
  line-height: 1;
  margin-bottom: 8px;
  text-shadow: 0 0 20px var(--brand-green-glow);
}

.calc-result-tons {
  font-size: 1rem;
  color: #e2e8f0;
  margin-bottom: 16px;
  font-weight: 500;
}

.calc-result-tip {
  font-size: 0.825rem;
  color: var(--text-muted);
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
  padding-top: 14px;
  margin-bottom: 22px;
}

.btn-calc-filter {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--brand-green);
  color: #0b190c;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 13px 20px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.btn-calc-filter:hover {
  background: var(--brand-green-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--brand-green-glow);
}

/* ==========================================================================
   CATEGORY CARDS
   ========================================================================== */
.categories-section {
  padding: 40px 0 70px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 46px auto;
}

.section-tag {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--brand-green);
  display: inline-block;
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.25;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-dim);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
}

.category-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
  border-color: rgba(109, 184, 63, 0.5);
}

.category-icon-box {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-md);
  background: #f1f8ed;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-green);
  font-size: 2rem;
  margin-bottom: 18px;
  transition: all var(--transition-fast);
}

.category-card:hover .category-icon-box {
  background: var(--brand-green);
  color: #0b1a0d;
  transform: scale(1.08);
}

.category-name {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.category-count {
  font-size: 0.8125rem;
  color: var(--text-dim);
  margin-bottom: 14px;
}

.category-link {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--brand-green);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
}

.category-card:hover .category-link {
  color: var(--brand-green-hover);
}

/* ==========================================================================
   PRODUCT CATALOG (STORE GRID)
   ========================================================================== */
.catalog-section {
  padding: 70px 0;
  background: #ffffff;
  border-top: 1px solid var(--border-light);
}

.catalog-filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.filter-tabs {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-tab-btn {
  padding: 9px 20px;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  background: #f1f5f9;
  color: var(--text-dim);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.filter-tab-btn:hover {
  background: #e2e8f0;
  color: var(--text-dark);
}

.filter-tab-btn.active {
  background: var(--bg-dark-primary);
  color: var(--text-white);
  box-shadow: 0 4px 12px rgba(17, 28, 39, 0.2);
}

.catalog-sort {
  display: flex;
  align-items: center;
  gap: 10px;
}

.catalog-sort label {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 500;
}

.sort-select {
  padding: 8px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-dark);
  background: var(--bg-white);
  outline: none;
}

/* Product Cards Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 480px));
  justify-content: center;
  gap: 30px;
}

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
  border-color: rgba(109, 184, 63, 0.4);
}

/* Badges overlay */
.product-badges {
  position: absolute;
  top: 14px;
  left: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 5;
}

.p-badge {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.p-badge.badge-inverter {
  background: #111c27;
  color: var(--brand-green);
}

.p-badge.badge-discount {
  background: var(--brand-orange);
  color: #ffffff;
}

.p-badge.badge-free-ship {
  background: var(--brand-green);
  color: #0b1a0d;
}

/* Image Container */
.product-img-wrap {
  height: 250px;
  padding: 24px;
  background: #fafbfc;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-img-wrap img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: transform var(--transition-normal);
}

.product-card:hover .product-img-wrap img {
  transform: scale(1.05);
}

.quick-view-overlay {
  position: absolute;
  bottom: -40px;
  left: 0;
  width: 100%;
  padding: 10px;
  display: flex;
  justify-content: center;
  background: rgba(17, 28, 39, 0.7);
  backdrop-filter: blur(4px);
  transition: all var(--transition-fast);
  opacity: 0;
}

.product-card:hover .quick-view-overlay {
  bottom: 0;
  opacity: 1;
}

.btn-quick-view {
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-quick-view:hover {
  color: var(--brand-green);
}

/* Product Content */
.product-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-brand {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.product-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.4;
  margin-bottom: 8px;
  min-height: 48px;
}

/* Technical feature tags */
.product-specs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.spec-pill {
  background: #f1f5f9;
  color: var(--text-body);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

/* Capacity selector pills */
.capacity-selector {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
}

.cap-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-weight: 600;
}

.cap-btn {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: #f1f5f9;
  border: 1px solid var(--border-light);
  color: var(--text-body);
  cursor: pointer;
}

.cap-btn.active {
  background: var(--bg-dark-primary);
  color: var(--text-white);
  border-color: var(--bg-dark-primary);
}

/* Pricing */
.product-price-box {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-top: auto;
  margin-bottom: 18px;
}

.price-current {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-dark);
}

.price-old {
  font-size: 0.85rem;
  text-decoration: line-through;
  color: var(--text-muted);
}

/* Action Buttons */
.product-actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.btn-add-cart {
  background: var(--bg-dark-primary);
  color: var(--text-white);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  padding: 11px 14px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.btn-add-cart:hover {
  background: var(--brand-green);
  color: #0b190c;
  box-shadow: 0 4px 14px var(--brand-green-glow);
}

.btn-pdf-spec {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(220, 38, 38, 0.08);
  border: 1px solid rgba(220, 38, 38, 0.35);
  color: #dc2626;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-pdf-spec:hover {
  background: #dc2626;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(220, 38, 38, 0.35);
  transform: translateY(-2px);
}

.product-model-code {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.model-tag {
  background: #f1f5f9;
  color: #475569;
  font-size: 0.72rem;
  font-weight: 600;
  font-family: monospace;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid #e2e8f0;
}

.btn-download-pdf-modal {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  color: #dc2626;
  background: #fee2e2;
  border: 1px solid rgba(220, 38, 38, 0.3);
  padding: 8px 14px;
  border-radius: 8px;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-download-pdf-modal:hover {
  background: #dc2626;
  color: #ffffff;
  transform: translateY(-1px);
}

/* ==========================================================================
   CHARMO HERO BANNER (PRODUCTOS 02 SHOWCASE)
   ========================================================================== */
.charmo-hero-banner {
  display: grid;
  grid-template-columns: 460px 1fr;
  gap: 32px;
  background: linear-gradient(135deg, #0e1722 0%, #172635 100%);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  margin-bottom: 36px;
  box-shadow: var(--shadow-lg);
  align-items: center;
}

.charmo-banner-img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  position: relative;
  overflow: hidden;
  background: #000;
}

.charmo-banner-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.charmo-banner-info {
  padding: 32px 36px 32px 0;
  color: #ffffff;
}

.charmo-badge-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.charmo-badge {
  background: var(--brand-orange);
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.charmo-badge-sec {
  background: rgba(109, 184, 63, 0.2);
  color: var(--brand-green-light);
  border: 1px solid rgba(109, 184, 63, 0.4);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.charmo-banner-title {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.25;
  margin-bottom: 12px;
}

.charmo-banner-desc {
  color: #94a3b8;
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 18px;
}

.charmo-banner-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-bottom: 22px;
}

.charmo-pill {
  font-size: 0.78rem;
  font-weight: 600;
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 4px 10px;
  border-radius: 6px;
}

.charmo-banner-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-download-catalog {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #dc2626;
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 11px 18px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(220, 38, 38, 0.35);
}

.btn-download-catalog:hover {
  background: #b91c1c;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(220, 38, 38, 0.5);
}

.btn-banner-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(37, 211, 102, 0.15);
  color: #25d366;
  border: 1px solid rgba(37, 211, 102, 0.4);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 11px 18px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-banner-whatsapp:hover {
  background: #25d366;
  color: #0b1a0d;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.4);
}

@media (max-width: 991px) {
  .charmo-hero-banner {
    grid-template-columns: 1fr;
  }
  .charmo-banner-info {
    padding: 24px;
  }
  .charmo-banner-img {
    min-height: 240px;
    max-height: 300px;
  }
}

.btn-whatsapp-quote {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(109, 184, 63, 0.1);
  border: 1px solid rgba(109, 184, 63, 0.4);
  color: var(--brand-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition-fast);
}

.btn-whatsapp-quote:hover {
  background: var(--brand-green);
  color: #0b1a0d;
  box-shadow: 0 4px 12px var(--brand-green-glow);
}

/* ==========================================================================
   PROMOTIONAL FLASH SALE BANNER
   ========================================================================== */
.promo-banner-section {
  padding: 60px 0;
}

.promo-banner {
  background: linear-gradient(135deg, #111c27 0%, #172738 50%, #0d1620 100%);
  border-radius: var(--radius-lg);
  padding: 48px;
  color: var(--text-white);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 36px;
}

.promo-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(230, 126, 34, 0.2);
  color: var(--brand-orange-light);
  border: 1px solid rgba(230, 126, 34, 0.4);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.promo-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 12px;
}

.promo-desc {
  font-size: 1rem;
  color: #cbd5e1;
  max-width: 520px;
  margin-bottom: 24px;
}

.promo-countdown {
  display: flex;
  gap: 14px;
  margin-bottom: 28px;
}

.timer-box {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  min-width: 70px;
  text-align: center;
}

.timer-num {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--brand-green);
  display: block;
}

.timer-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

/* ==========================================================================
   WHY CHOOSE ALCA SP (VALUE PROPOSITIONS)
   ========================================================================== */
.why-section {
  padding: 70px 0;
  background: #ffffff;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.feature-box {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  border: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.feature-box:hover {
  transform: translateY(-4px);
  background: #ffffff;
  box-shadow: var(--shadow-md);
  border-color: rgba(109, 184, 63, 0.4);
}

.feature-icon-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #f1f8ed;
  color: var(--brand-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  transition: all var(--transition-fast);
}

.feature-box:hover .feature-icon-circle {
  background: var(--brand-green);
  color: #0b1a0d;
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ==========================================================================
   TESTIMONIALS & FAQ
   ========================================================================== */
.testimonials-section {
  padding: 70px 0;
  background: var(--bg-light);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.testimonial-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

.stars-row {
  color: #f59e0b;
  font-size: 0.95rem;
  margin-bottom: 14px;
  display: flex;
  gap: 4px;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-body);
  font-style: italic;
  margin-bottom: 20px;
  line-height: 1.6;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-dark-primary);
  color: var(--brand-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-heading);
}

.author-name {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dark);
}

.author-location {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* FAQ Accordion */
.faq-section {
  padding: 60px 0;
  background: #ffffff;
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: rgba(109, 184, 63, 0.4);
}

.faq-question {
  width: 100%;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
  text-align: left;
}

.faq-question:hover {
  color: var(--brand-green-hover);
}

.faq-icon {
  font-size: 1.2rem;
  color: var(--text-dim);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--brand-green);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  background: #fafbfc;
}

.faq-answer-inner {
  padding: 0 22px 20px 22px;
  font-size: 0.925rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.main-footer {
  background: var(--bg-dark-primary);
  color: var(--text-muted);
  padding: 70px 0 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-logo-img {
  height: 46px;
  margin-bottom: 18px;
}

.footer-about {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 22px;
  color: #94a3b8;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 20px;
  position: relative;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--brand-green);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 0.875rem;
  color: #94a3b8;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-link:hover {
  color: var(--brand-green);
  transform: translateX(3px);
}

.contact-info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.875rem;
  color: #94a3b8;
}

.contact-icon {
  color: var(--brand-green);
  font-size: 1.1rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.footer-newsletter-text {
  font-size: 0.875rem;
  margin-bottom: 14px;
}

.newsletter-form {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.newsletter-input {
  flex: 1;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.85rem;
  outline: none;
}

.newsletter-input:focus {
  border-color: var(--brand-green);
}

.btn-newsletter {
  background: var(--brand-green);
  color: #0b1a0d;
  font-family: var(--font-heading);
  font-weight: 700;
  padding: 0 16px;
  border-radius: var(--radius-md);
}

.btn-newsletter:hover {
  background: var(--brand-green-light);
}

/* Payment Badges & Copyright */
.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.8125rem;
}

.payment-badges-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.payment-badge {
  background: rgba(255, 255, 255, 0.07);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  color: #e2e8f0;
}

/* ==========================================================================
   INTERACTIVE CART DRAWER
   ========================================================================== */
.cart-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.cart-drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: -450px;
  width: 100%;
  max-width: 420px;
  height: 100%;
  background: var(--bg-white);
  z-index: 2001;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.cart-drawer.open {
  right: 0;
}

.cart-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-dark-primary);
  color: var(--text-white);
}

.cart-header h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-close-cart {
  color: var(--text-muted);
  font-size: 1.4rem;
}

.btn-close-cart:hover {
  color: var(--text-white);
}

.cart-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
}

.cart-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-dim);
}

.cart-empty-icon {
  font-size: 3rem;
  color: #cbd5e1;
  margin-bottom: 14px;
}

.cart-item {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-light);
}

.cart-item-img {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: #f8fafc;
  padding: 6px;
  object-fit: contain;
}

.cart-item-info h4 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 4px;
}

.cart-item-cap {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.cart-item-price {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-dark);
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 8px;
}

.qty-btn {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  background: #f1f5f9;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qty-btn:hover {
  background: #e2e8f0;
}

.btn-remove-item {
  color: #ef4444;
  font-size: 1rem;
  margin-left: 8px;
}

.cart-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--border-light);
  background: #f8fafc;
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.cart-summary-total {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-dark);
  padding-top: 8px;
  border-top: 1px dashed var(--border-light);
  margin-bottom: 18px;
}

.cart-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn-checkout-wa {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #25d366;
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 13px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

.btn-checkout-wa:hover {
  background: #1ebc59;
}

.btn-checkout-site {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--bg-dark-primary);
  color: var(--text-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 13px;
  border-radius: var(--radius-md);
}

.btn-checkout-site:hover {
  background: var(--brand-green);
  color: #0b190c;
}

/* ==========================================================================
   QUICK VIEW MODAL & SEARCH MODAL
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  z-index: 2500;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(0.98);
  transition: all var(--transition-normal);
}

.modal-overlay.open .modal-dialog {
  transform: translateY(0) scale(1);
}

.btn-close-modal {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #f1f5f9;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  z-index: 10;
}

.modal-content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  padding: 36px;
}

/* Search Modal */
.search-dialog {
  max-width: 600px;
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 24px;
}

.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 2px solid var(--brand-green);
  padding-bottom: 12px;
}

.search-field {
  flex: 1;
  font-size: 1.15rem;
  border: none;
  outline: none;
  font-family: var(--font-body);
}

.search-results-list {
  margin-top: 20px;
  max-height: 320px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 30px;
  left: 30px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: var(--bg-dark-primary);
  color: #ffffff;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--brand-green);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  animation: slideInToast 0.3s ease forwards;
}

@keyframes slideInToast {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Floating WhatsApp Widget */
.floating-wa-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 1500;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25d366;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
  transition: all var(--transition-fast);
}

.floating-wa-btn svg {
  width: 32px;
  height: 32px;
  fill: #ffffff;
}

.floating-wa-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.6);
}

.wa-pulse {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px solid #25d366;
  animation: pulseWa 2s infinite;
}

@keyframes pulseWa {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.5); opacity: 0; }
}

/* ==========================================================================
   RESPONSIVE DESIGN BREAKPOINTS
   ========================================================================== */
@media (max-width: 1080px) {
  .hero-vertical-tagline {
    display: none;
  }
  
  .brands-bar-card {
    grid-template-columns: 1fr;
  }
  
  .brands-secure-block {
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }
  
  .calculator-card {
    grid-template-columns: 1fr;
    padding: 30px;
  }
  
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .nav-menu {
    display: none;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .btn-header-whatsapp span {
    display: none;
  }
  
  .hero-headline {
    font-size: 2.2rem;
  }
  
  .hero-trust-row {
    gap: 12px;
  }
  
  .calc-grid {
    grid-template-columns: 1fr;
  }
  
  .promo-banner {
    flex-direction: column;
    padding: 32px 24px;
    text-align: center;
  }
  
  .promo-countdown {
    justify-content: center;
  }
  
  .modal-content-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 580px) {
  .top-bar-links {
    display: none;
  }
  
  .hero-content-wrapper {
    padding: 40px 0 80px 0;
  }
  
  .hero-headline {
    font-size: 1.85rem;
  }
  
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }
  
  .btn-hero-primary, .btn-hero-secondary {
    width: 100%;
    justify-content: center;
  }
  
  .brands-bar-wrapper {
    margin-top: -25px;
  }
  
  .footer-top-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}