/* ===================================
   SLN Chauffage - Design System & Styles
   =================================== */

/* Import Google Fonts - Optimized with display=swap */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800&family=Outfit:wght@400;600;700&display=swap');

/* ===================================
   CSS Variables - Design Tokens
   =================================== */
:root {
  /* Colors - Warm Professional Palette */
  --primary-orange: hsl(25, 75%, 55%);
  --primary-orange-dark: hsl(25, 75%, 45%);
  --primary-orange-light: hsl(25, 75%, 65%);
  --secondary-blue: hsl(210, 85%, 45%);
  --secondary-blue-dark: hsl(210, 85%, 35%);
  --accent-red: hsl(10, 70%, 58%);

  /* Neutrals */
  --white: hsl(0, 0%, 100%);
  --gray-50: hsl(210, 20%, 98%);
  --gray-100: hsl(210, 20%, 95%);
  --gray-200: hsl(210, 20%, 90%);
  --gray-300: hsl(210, 15%, 80%);
  --gray-400: hsl(210, 10%, 60%);
  --gray-600: hsl(210, 10%, 40%);
  --gray-800: hsl(210, 15%, 20%);
  --gray-900: hsl(210, 20%, 10%);

  /* Gradients */
  --gradient-warm: linear-gradient(135deg, var(--primary-orange) 0%, var(--accent-red) 100%);
  --gradient-cool: linear-gradient(135deg, var(--secondary-blue) 0%, var(--secondary-blue-dark) 100%);
  --gradient-overlay: linear-gradient(135deg, rgba(255, 107, 0, 0.9) 0%, rgba(220, 38, 38, 0.8) 100%);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ===================================
   Reset & Base Styles
   =================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  color: var(--gray-800);
  background-color: var(--gray-50);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===================================
   Typography
   =================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--gray-600);
}

/* ===================================
   Layout Components
   =================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-alt {
  background-color: var(--white);
}

/* ===================================
   Header & Navigation
   =================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: var(--transition-normal);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-md) 0;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  margin-bottom: var(--spacing-md);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.logo {
  height: 60px;
  width: 60px;
  transition: var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
}

.company-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-nav {
  width: 100%;
  display: flex;
  justify-content: center;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}

.nav-separator {
  color: var(--gray-400);
  font-weight: 300;
  user-select: none;
}

.nav-link {
  text-decoration: none;
  color: var(--gray-800);
  font-weight: 600;
  position: relative;
  transition: var(--transition-fast);
  padding: var(--spacing-xs) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-warm);
  transition: var(--transition-normal);
}

.nav-link:hover {
  color: var(--primary-orange);
}

.nav-link:hover::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.menu-toggle span {
  width: 28px;
  height: 3px;
  background: var(--gray-800);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-warm);
  overflow: hidden;
  margin-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  color: var(--white);
  max-width: 800px;
}

.hero h1 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.hero p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* ===================================
   Buttons
   =================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 1rem 2rem;
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: var(--transition-normal);
  cursor: pointer;
  border: none;
  font-family: var(--font-primary);
}

.btn-primary {
  background: var(--white);
  color: var(--primary-orange);
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

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

.btn-secondary:hover {
  background: var(--white);
  color: var(--primary-orange);
  transform: translateY(-2px);
}

.btn-icon {
  width: 24px;
  height: 24px;
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* ===================================
   Services Section
   =================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.service-card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.service-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-warm);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 64px;
  height: 64px;
  background: var(--gradient-warm);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: 2rem;
}

.service-card h3 {
  margin-bottom: var(--spacing-sm);
}

.service-card p {
  font-size: 1rem;
}

.service-cta {
  display: inline-block;
  margin-top: var(--spacing-md);
  color: var(--primary-orange);
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition-fast);
}

.service-card:hover .service-cta {
  transform: translateX(4px);
}

/* ===================================
   Testimonials Section
   =================================== */
.testimonials {
  background: var(--gradient-cool);
  color: var(--white);
}

.testimonials h2 {
  color: var(--white);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

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

.testimonial-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: var(--transition-normal);
}

.testimonial-card:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
}

.testimonial-text {
  font-size: 1.125rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
  color: rgba(255, 255, 255, 0.95);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
}

.author-info h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.author-info p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
}

.stars {
  color: #fbbf24;
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

/* ===================================
   Contact Section
   =================================== */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.contact-info h2 {
  margin-bottom: var(--spacing-md);
}

.contact-info p {
  margin-bottom: var(--spacing-xl);
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-card {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  text-decoration: none;
  color: var(--gray-800);
  transition: var(--transition-normal);
}

.contact-card:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-lg);
}

.contact-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  flex-shrink: 0;
}

.contact-icon.phone {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
}

.contact-icon.whatsapp {
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
}

.contact-details h3 {
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.contact-details p {
  font-size: 1rem;
  color: var(--gray-600);
}

.contact-form {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--gray-800);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.btn-submit {
  width: 100%;
  background: var(--gradient-warm);
  color: var(--white);
  padding: 1rem;
  font-size: 1.125rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-normal);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===================================
   Footer
   =================================== */
.footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
}

.footer-section p,
.footer-section a {
  color: var(--gray-400);
  text-decoration: none;
  display: block;
  margin-bottom: var(--spacing-xs);
  transition: var(--transition-fast);
}

.footer-section a:hover {
  color: var(--primary-orange);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--gray-800);
  color: var(--gray-500);
}

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

  .header-nav {
    position: relative;
  }

  .nav-links {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
    gap: var(--spacing-sm);
    z-index: 100;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-separator {
    display: none;
  }

  .logo {
    height: 50px;
    width: 50px;
  }

  .company-name {
    font-size: 1.25rem;
  }

  .hero {
    margin-top: 120px;
    padding: var(--spacing-xl) 0;
  }

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

  .cta-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.8s ease forwards;
}

/* Scroll reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition-slow);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================
   Energy Calculator
   =================================== */
.calculator-container {
  max-width: 1000px;
  margin: 0 auto;
}

.calculator-form {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-xl);
}

.calc-input {
  width: 100%;
  padding: 0.875rem;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.calc-input:focus {
  outline: none;
  border-color: var(--primary-orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.1);
}

.calculator-results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.result-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: var(--transition-normal);
}

.result-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.result-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.result-card h3 {
  font-size: 1rem;
  color: var(--gray-600);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.result-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-orange);
  margin-bottom: 0.25rem;
}

.result-subtitle {
  font-size: 0.875rem;
  color: var(--gray-500);
}

.calculator-note {
  background: var(--gray-100);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--primary-orange);
}

.calculator-note p {
  font-size: 0.9375rem;
  color: var(--gray-700);
  margin: 0;
}


/* ===================================
   Gallery Section
   =================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.gallery-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

.gallery-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.gallery-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--gray-300);
}

.comparison-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.comparison-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-normal);
}

.comparison-image:hover img {
  transform: scale(1.05);
}

.comparison-label {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.before-label {
  background: rgba(220, 38, 38, 0.9);
  color: var(--white);
}

.after-label {
  background: rgba(34, 197, 94, 0.9);
  color: var(--white);
}

.gallery-single {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.gallery-single img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-normal);
}

.gallery-item:hover .gallery-single img {
  transform: scale(1.05);
}

.gallery-info {
  padding: var(--spacing-lg);
}

.gallery-info h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--gray-900);
}

.gallery-info p {
  font-size: 0.9375rem;
  color: var(--gray-600);
  margin-bottom: var(--spacing-sm);
}

.gallery-location {
  display: inline-block;
  font-size: 0.875rem;
  color: var(--primary-orange);
  font-weight: 600;
}

.gallery-cta {
  text-align: center;
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-xl);
  background: var(--gray-100);
  border-radius: var(--radius-lg);
}

.gallery-cta p {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
}

/* ===================================
   Service Detail Pages
   =================================== */
.service-hero {
  background: var(--gradient-warm);
  padding: var(--spacing-3xl) 0 var(--spacing-2xl);
  margin-top: 80px;
  text-align: center;
}

.service-hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.service-icon-large {
  width: 120px;
  height: 120px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  margin: 0 auto var(--spacing-lg);
  border: 3px solid rgba(255, 255, 255, 0.3);
}

.service-hero h1 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.service-subtitle {
  color: rgba(255, 255, 255, 0.95);
  font-size: 1.25rem;
  margin: 0;
}

.service-content {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--spacing-2xl);
  align-items: start;
}

.service-main {
  background: var(--white);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.service-main h2 {
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.service-main h2:first-child {
  margin-top: 0;
}

.service-main p {
  margin-bottom: var(--spacing-md);
}

.service-main strong {
  color: var(--primary-orange);
  font-weight: 700;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
}

.benefit-card {
  background: var(--gray-50);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--primary-orange);
}

.benefit-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-warm);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.benefit-card h3 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xs);
}

.benefit-card p {
  font-size: 0.9375rem;
  margin: 0;
}

.solution-item {
  background: var(--gray-50);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  border: 2px solid transparent;
  transition: var(--transition-normal);
}

.solution-item:hover {
  border-color: var(--primary-orange);
  box-shadow: var(--shadow-md);
}

.solution-item h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--gray-900);
}

.solution-item p {
  margin-bottom: var(--spacing-md);
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: var(--spacing-md) 0 0 0;
}

.feature-list li {
  padding: var(--spacing-xs) 0 var(--spacing-xs) var(--spacing-lg);
  position: relative;
  color: var(--gray-700);
  font-size: 1rem;
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-orange);
  font-weight: 700;
  font-size: 1.25rem;
}

.cta-section {
  background: var(--gradient-warm);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  margin-top: var(--spacing-2xl);
  color: var(--white);
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.why-choose {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.why-item {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.why-item strong {
  display: block;
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xs);
  color: var(--white);
}

.why-item p {
  font-size: 0.9375rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
}

.service-sidebar {
  position: sticky;
  top: 100px;
}

.sidebar-card {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-md);
}

.sidebar-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  color: var(--gray-900);
}

.sidebar-card p {
  font-size: 1rem;
  margin-bottom: var(--spacing-md);
}

.sidebar-card .btn {
  width: 100%;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
}

.sidebar-card .btn:last-child {
  margin-bottom: 0;
}

.cta-card {
  background: var(--gradient-cool);
  color: var(--white);
}

.cta-card h3,
.cta-card p {
  color: var(--white);
}

.cta-card .btn-primary {
  background: var(--white);
  color: var(--secondary-blue);
}

.cta-card .btn-secondary {
  border-color: var(--white);
  color: var(--white);
}

.cta-card .btn-secondary:hover {
  background: var(--white);
  color: var(--secondary-blue);
}

.service-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.service-links li {
  margin-bottom: var(--spacing-xs);
}

.service-links a {
  display: block;
  padding: var(--spacing-xs) var(--spacing-sm);
  color: var(--gray-700);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.service-links a:hover {
  background: var(--gray-100);
  color: var(--primary-orange);
  transform: translateX(4px);
}

.highlight-card {
  background: var(--gradient-warm);
  color: var(--white);
}

.highlight-card h3,
.highlight-card p {
  color: var(--white);
}

.highlight-card strong {
  color: var(--white);
  font-size: 1.25rem;
}

.small-text {
  font-size: 0.875rem;
  opacity: 0.9;
  margin: 0;
}

/* Responsive for service pages */
@media (max-width: 968px) {
  .service-content {
    grid-template-columns: 1fr;
  }

  .service-sidebar {
    position: static;
  }

  .benefits-grid,
  .why-choose {
    grid-template-columns: 1fr;
  }
}

/* ===================================
   Floating Chat & Call Buttons
   =================================== */
.floating-chat {
  position: fixed;
  bottom: 100px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: var(--transition-normal);
  animation: pulse 2s infinite;
}

.floating-chat:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
}

.floating-call {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: var(--gradient-warm);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(255, 107, 0, 0.4);
  z-index: 999;
  transition: var(--transition-normal);
  animation: pulse-orange 2s infinite 0.5s;
}

.floating-call:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(255, 107, 0, 0.6);
}

.floating-chat svg,
.floating-call svg {
  width: 32px;
  height: 32px;
  fill: white;
}

.chat-tooltip,
.call-tooltip {
  position: absolute;
  right: 70px;
  background: var(--gray-900);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-fast);
}

.floating-chat:hover .chat-tooltip,
.floating-call:hover .call-tooltip {
  opacity: 1;
}

@keyframes pulse {

  0%,
  100% {
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  }

  50% {
    box-shadow: 0 4px 30px rgba(37, 211, 102, 0.7);
  }
}

@keyframes pulse-orange {

  0%,
  100% {
    box-shadow: 0 4px 20px rgba(255, 107, 0, 0.4);
  }

  50% {
    box-shadow: 0 4px 30px rgba(255, 107, 0, 0.7);
  }
}

/* ===================================
   Promotional Popup
   =================================== */
.promo-popup {
  position: fixed;
  bottom: -300px;
  left: 50%;
  transform: translateX(-50%);
  max-width: 500px;
  width: 90%;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: 1000;
  transition: bottom 0.5s ease, opacity 0.5s ease, visibility 0.5s ease;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
}

.promo-popup.show {
  bottom: 30px;
  opacity: 1;
  visibility: visible;
}

.promo-header {
  background: var(--gradient-warm);
  color: var(--white);
  padding: var(--spacing-lg);
  position: relative;
}

.promo-close {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: var(--white);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.5rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  z-index: 10;
  padding: 0;
}

.promo-close:hover {
  background: rgba(255, 255, 255, 0.4);
  transform: scale(1.1);
}

.promo-content {
  padding: var(--spacing-xl);
  text-align: center;
}

.promo-badge {
  display: inline-block;
  background: var(--accent-red);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-xl);
  font-weight: 700;
  font-size: 0.875rem;
  margin-bottom: var(--spacing-md);
}

.promo-content h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--gray-900);
}

.promo-content p {
  margin-bottom: var(--spacing-lg);
  color: var(--gray-600);
}

/* ===================================
   FAQ Section
   =================================== */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  padding: var(--spacing-lg);
  background: none;
  border: none;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-fast);
}

.faq-question:hover {
  color: var(--primary-orange);
}

.faq-icon {
  font-size: 1.5rem;
  transition: var(--transition-fast);
  color: var(--primary-orange);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-content {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  color: var(--gray-600);
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

/* ===================================
   Certifications Section
   =================================== */
.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.cert-badge {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

.cert-badge:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.cert-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.cert-badge h4 {
  font-size: 0.875rem;
  color: var(--gray-900);
  margin-bottom: 0.25rem;
}

.cert-badge p {
  font-size: 0.75rem;
  color: var(--gray-500);
  margin: 0;
}

@media (max-width: 768px) {
  .floating-chat {
    bottom: 90px;
    right: 20px;
    width: 56px;
    height: 56px;
  }

  .floating-call {
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
  }

  .chat-tooltip,
  .call-tooltip {
    display: none;
  }

  .promo-popup {
    width: 95%;
  }
}