/* Base Styles */
:root {
  --primary-color: #0078C8;
  --primary-dark: #005a99;
  --primary-light: #e6f4ff;
  --secondary-color: #36B37E;
  --secondary-dark: #2a8c62;
  --secondary-light: #e6f7f1;
  --accent-color: #FFB400;
  --text-color: #2D3748;
  --text-light: #4A5568;
  --text-over-light: #FFFFFF; 
  --text-lighter: #718096;
  --bg-color: #FFFFFF;
  --bg-light: #F5F7FA;
  --border-color: #E2E8F0;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --success-color: #48BB78;
  --warning-color: #ED8936;
  --error-color: #F56565;
  
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  
  --font-family: 'Montserrat', sans-serif;
  --transition-speed: 0.3s;
}

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

html {
  scroll-behavior: smooth;
}

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

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-speed);
}

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

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

ul, ol {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

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

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
  padding-bottom: var(--spacing-md);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--primary-color);
  border-radius: var(--border-radius-sm);
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  align-items: center;
}

section {
  padding: var(--spacing-xxl) 0;
}

.bg-light {
  background-color: var(--bg-light);
}

/* Header */
#header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
  padding: var(--spacing-md) 0;
}

#header.scrolled {
  background-color: var(--bg-color);
  box-shadow: 0 4px 6px var(--shadow-color);
}
#header.scrolled .nav-menu a {
  color: var(--primary-color); /* синій колір */
}


#header.scrolled .nav-menu a.active {
  color: var(--primary-dark); /* темно-синій для активного */
}

#header.scrolled .mobile-menu-btn {
  color: var(--primary-dark);
}

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

.logo a {
  display: flex;
  align-items: center;
}

.logo-text {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-color);
}

.logo-text a {
  color: var(--text-color); 
  text-decoration: none; 
}

.logo-text .highlight {
  color: var(--primary-color);
}

/* Navigation */
nav {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-menu a {
  font-weight: 600;
  color: var(--text-over-light);
  padding: var(--spacing-xs) var(--spacing-sm);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  color: var(--text-color);
  background-color: var(--primary-color);
  transition: width var(--transition-speed);
}

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

.nav-menu a.active {
  color: var(--text-color);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  
}

.mobile-menu-btn span {
  width: 100%;
  height: 2px;
  background-color: var(--text-color);
  transition: transform var(--transition-speed), opacity var(--transition-speed);

}
.mobile-menu-btn a{
  color: var(--primary-color);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-md);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: background-color var(--transition-speed), color var(--transition-speed), transform var(--transition-speed);
  border: none;
  outline: none;
}

.btn:hover {
  transform: translateY(-2px);
}

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

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

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

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

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

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

.btn-small {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.9rem;
}

/* Hero Section */
.hero {
  padding-top: 120px;
  padding-bottom: var(--spacing-xxl);
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  text-align: center;
}

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

.hero h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

/* Page Header */
.page-header {
  padding-top: 120px;
  padding-bottom: var(--spacing-xl);
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  text-align: center;
}

.page-header h1 {
  margin-bottom: var(--spacing-sm);
}

.breadcrumbs {
  font-size: 0.9rem;
}

.breadcrumbs a {
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumbs a:hover {
  color: white;
}

.breadcrumbs span {
  opacity: 0.8;
}

/* CTA Section */
.cta {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  text-align: center;
}

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

.cta h2 {
  font-size: 2.25rem;
  margin-bottom: var(--spacing-md);
}

.cta p {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

/* Footer */
footer {
  background-color: #1A202C;
  color: white;
  padding-top: var(--spacing-xxl);
}

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

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

.footer-col p {
  opacity: 0.8;
  font-size: 0.9rem;
}

.footer-col h4 {
  margin-bottom: var(--spacing-lg);
  position: relative;
  padding-bottom: var(--spacing-xs);
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background-color: var(--primary-color);
}

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

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-speed);
}

.footer-links a:hover {
  color: white;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.8);
}

.footer-contact i {
  color: var(--primary-color);
}

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

.social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  transition: background-color var(--transition-speed), transform var(--transition-speed);
}

.social-icons a:hover {
  background-color: var(--primary-color);
  transform: translateY(-3px);
}

.footer-bottom {
  padding: var(--spacing-md) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.9rem;
  opacity: 0.7;
}

/* Media Queries */
@media (max-width: 992px) {
  h1 {
    font-size: 2.25rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
    z-index: 1001;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--bg-color);
    color: var(--primary-color);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right var(--transition-speed);
    box-shadow: -2px 0 10px var(--shadow-color);
    z-index: 1000;
  }
  .nav-menu a {
    color: var(--primary-color); 
  }

  .nav-menu a.active {
    color: var(--primary-dark); 
  }
 


  
  @media (max-width: 768px) {
    .grid-services {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  .nav-menu.active {
    right: 0;
    color: var(--primary-color);
  }
  
  .mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
    color: var(--primary-color);
  }
  
  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
    color: var(--primary-dark);
  }
  
  .mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
  
  .hero h1 {
    font-size: 2.25rem;
  }
  
  .hero p {
    font-size: 1.1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .btn {
    width: 100%;
  }
}

@media (max-width: 576px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .cta h2 {
    font-size: 1.75rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  .nav-menu a {
    color: var(--primary-color); 
  }

  .nav-menu a.active {
    color: var(--primary-dark); 
  }
}