/* =====================================================
   DIGITEM - Design System & Global Styles
   Agence de développement web - Ouagadougou
   ===================================================== */

/* ==================== CSS Variables ==================== */
:root {
  /* Primary Colors - Based on Circuit Logo */
  --color-primary: #0066FF;
  --color-primary-dark: #0052CC;
  --color-primary-light: #3385FF;
  
  /* Accent Colors */
  --color-accent: #00D4FF;
  --color-accent-dark: #00B8E6;
  
  /* Dark Theme Colors */
  --color-dark: #0A1628;
  --color-dark-lighter: #0F1F35;
  --color-dark-card: #152238;
  --color-dark-border: rgba(255, 255, 255, 0.1);
  
  /* Light Colors */
  --color-light: #F8FAFC;
  --color-white: #FFFFFF;
  
  /* Text Colors */
  --color-text: #E2E8F0;
  --color-text-muted: #94A3B8;
  --color-text-bright: #FFFFFF;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  --gradient-dark: linear-gradient(180deg, var(--color-dark) 0%, var(--color-dark-lighter) 100%);
  --gradient-glow: linear-gradient(135deg, rgba(0, 102, 255, 0.2) 0%, rgba(0, 212, 255, 0.2) 100%);
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 40px rgba(0, 102, 255, 0.3);
  --shadow-glow-accent: 0 0 40px rgba(0, 212, 255, 0.2);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Outfit', var(--font-primary);
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  
  /* Layout */
  --container-max: 1200px;
  --header-height: 80px;
}

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

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

body {
  font-family: var(--font-primary);
  background-color: var(--color-dark);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

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

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

a:hover {
  color: var(--color-primary-light);
}

/* ==================== Utility Classes ==================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.section {
  padding: var(--spacing-4xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title h2 {
  margin-bottom: var(--spacing-md);
}

.section-title p {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto;
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-accent {
  color: var(--color-accent);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ==================== Buttons ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 60px rgba(0, 102, 255, 0.4);
  color: var(--color-white);
}

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

.btn-secondary:hover {
  border-color: var(--color-accent);
  background: rgba(0, 212, 255, 0.1);
  color: var(--color-accent);
}

.btn-whatsapp {
  background: #25D366;
  color: var(--color-white);
}

.btn-whatsapp:hover {
  background: #20BD5A;
  transform: translateY(-2px);
  color: var(--color-white);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--text-lg);
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--text-sm);
}

/* ==================== Cards ==================== */
.card {
  background: var(--color-dark-card);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.card-glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* ==================== Header / Navbar ==================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(10, 22, 40, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-dark-border);
  z-index: 1000;
  transition: all var(--transition-base);
}

.header.scrolled {
  background: rgba(10, 22, 40, 0.98);
  box-shadow: var(--shadow-lg);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

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

.logo img {
  height: 100px;
  width: auto;
}

.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-bright);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-2xl);
}

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

.nav-link {
  color: var(--color-text);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent);
}

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

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

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

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-bright);
  transition: all var(--transition-base);
}

/* ==================== Hero Section ==================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(0, 102, 255, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 212, 255, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 40% 80%, rgba(0, 102, 255, 0.08) 0%, transparent 40%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--gradient-glow);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-accent);
  margin-bottom: var(--spacing-xl);
}

.hero-title {
  font-size: var(--text-6xl);
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.6;
}

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

.hero-stats {
  display: flex;
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-3xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid var(--color-dark-border);
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image {
  width: 100%;
  max-width: 500px;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

/* ==================== Services Section ==================== */
.services {
  background: var(--gradient-dark);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.service-card {
  text-align: center;
  padding: var(--spacing-2xl);
}

.service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-glow);
  border-radius: var(--radius-xl);
  font-size: var(--text-3xl);
}

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

.service-card p {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
}

.service-price {
  display: block;
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
}

.service-features {
  list-style: none;
  text-align: left;
  margin-bottom: var(--spacing-xl);
}

.service-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.service-features li::before {
  content: '✓';
  color: var(--color-accent);
  font-weight: 700;
}

/* ==================== Portfolio Section ==================== */
.portfolio {
  background: var(--color-dark);
}

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

.portfolio-item {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.portfolio-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-item:hover .portfolio-image {
  transform: scale(1.05);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(10, 22, 40, 0.95) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--spacing-xl);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-category {
  font-size: var(--text-sm);
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

.portfolio-title {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-sm);
}

.portfolio-desc {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ==================== About Section ==================== */
.about {
  background: var(--gradient-dark);
}

.about .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
}

.about-content h2 {
  margin-bottom: var(--spacing-xl);
}

.about-content p {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xl);
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.about-feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-glow);
  border-radius: var(--radius-lg);
  font-size: var(--text-xl);
  flex-shrink: 0;
}

.about-feature h4 {
  margin-bottom: var(--spacing-xs);
}

.about-feature p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0;
}

/* ==================== CTA Section ==================== */
.cta-section {
  background: var(--gradient-primary);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  animation: rotate 20s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  font-size: var(--text-lg);
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
}

.cta-section .btn-secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border: none;
}

.cta-section .btn-secondary:hover {
  background: var(--color-light);
  color: var(--color-primary-dark);
}

/* ==================== Contact Section ==================== */
.contact {
  background: var(--color-dark);
}

.contact .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
}

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

.contact-info > p {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-2xl);
}

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

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.contact-method-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-glow);
  border-radius: var(--radius-lg);
  font-size: var(--text-xl);
}

.contact-method h4 {
  margin-bottom: var(--spacing-xs);
}

.contact-method p,
.contact-method a {
  color: var(--color-text-muted);
  margin: 0;
}

/* Contact Form */
.contact-form {
  background: var(--color-dark-card);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-2xl);
}

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

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--spacing-md);
  background: var(--color-dark-lighter);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: inherit;
  font-size: var(--text-base);
  transition: border-color var(--transition-fast);
}

.form-group select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 48px;
  cursor: pointer;
}

.form-group select option {
  background: var(--color-dark-card);
  color: var(--color-text);
  padding: var(--spacing-md);
}

.form-group select option:hover,
.form-group select option:checked {
  background: var(--color-primary);
  color: white;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.15);
}

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

/* ==================== Footer ==================== */
.footer {
  background: var(--color-dark-lighter);
  border-top: 1px solid var(--color-dark-border);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: var(--spacing-lg);
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.footer-links h4 {
  margin-bottom: var(--spacing-lg);
  font-size: var(--text-base);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-dark-border);
}

.footer-bottom p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin: 0;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-dark-card);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* ==================== Maintenance & Process Grids ==================== */
.maintenance-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  max-width: 800px;
  margin: 0 auto;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

/* ==================== Responsive Design ==================== */
@media (max-width: 1024px) {
  :root {
    --text-6xl: 3.5rem;
    --text-5xl: 2.75rem;
    --text-4xl: 2.25rem;
  }
  
  .hero .container {
    gap: var(--spacing-2xl);
  }
  
  .hero-visual {
    max-width: 400px;
    margin: 0 auto;
  }
  
  .nav-links,
  .nav-cta {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
}

@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content {
    max-width: 100%;
    margin: 0 auto;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-visual {
    display: none; /* Hide visual on smaller tablets/mobile to save space */
  }
  
  .services-grid,
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --text-6xl: 2.5rem;
    --text-5xl: 2rem;
    --spacing-4xl: 4rem;
    --header-height: 70px;
  }
  
  .services-grid,
  .maintenance-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .about .container,
  .contact .container {
    grid-template-columns: 1fr;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .about-features {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-brand {
    max-width: 100%;
    margin: 0 auto;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-lg);
    text-align: center;
  }
  
  .contact-methods {
    align-items: center;
  }
  
  .contact-method {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  :root {
    --text-5xl: 1.75rem; /* Smaller headings for mobile */
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
  }
  
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .hero-badge {
    font-size: var(--text-xs);
  }
  
  .btn {
    width: 100%; /* Full width buttons on small screens */
  }
  
  .hero-cta {
    flex-direction: column;
    width: 100%;
  }
  
  .whatsapp-float {
    width: 50px;
    height: 50px;
    font-size: 24px;
    bottom: 20px;
    right: 20px;
  }
}

/* ==================== Mobile Menu ==================== */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-dark);
  padding: var(--spacing-xl);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  z-index: 999;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu .nav-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xl);
}

.mobile-menu .nav-link {
  font-size: var(--text-xl);
}

/* ==================== Animations ==================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==================== WhatsApp Button Fixed ==================== */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 30px;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 1000;
  transition: all var(--transition-base);
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
  color: white;
}