/* ============================================
   var and root
   ============================================ */

:root {
  --primary-color: #008556;
  --secondary-color: #f0f0f0;
  --text-dark: #333;
  --text-light: #666;
  --border-color: #ddd;
  --accent-color: #ff6b35;
  --white: #fff;
  --transition: all 0.3s ease;

  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 64px;

  --font-primary: 'Roboto', sans-serif;
  --font-secondary: 'Open Sans', sans-serif;

  --border-radius: 4px;
  --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --box-shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-secondary), sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--white);
}

/* ============================================
   Fonts and Headers
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary), sans-serif;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--primary-color);
}

h3 {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
}

h4 {
  font-size: 1rem;
  font-weight: 500;
}

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

ul, ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

li {
  margin-bottom: var(--spacing-sm);
  color: var(--text-light);
}

strong {
  color: var(--text-dark);
  font-weight: 600;
}

/* ============================================
   separate line
   ============================================ */

.line-divider {
  width: 60px;
  height: 3px;
  background-color: var(--primary-color);
  margin: 0 auto;
}

/* ============================================
   Buttons
   ============================================ */

a[href] {
  text-decoration: none;
}

.btn, a.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-size: 0.9rem;
  white-space: nowrap;
}

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

.btn-primary:hover, a.btn-primary:hover {
  background-color: #006b45;
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-lg);
}

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

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

/* ============================================
   HEADER
   ============================================ */

header {
  background-color: var(--primary-color);
  box-shadow: var(--box-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

header > div {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-sm);
}

header > div nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

header img {
  height: 80px;
  width: auto;
  display: block;
  flex-shrink: 0;
}

header .logo {
  flex-shrink: 0;
  order: -1;
}

header nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  margin: 0;
  flex-shrink: 0;
}

header nav a {
  color: var(--white);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-bottom: 3px solid transparent;
  transition: var(--transition);
}

.nav-contacts {
  color: var(--primary-color);
  background-color: var(--white);
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 4px;
  border-bottom: none;
  transition: var(--transition);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 1px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-contacts:hover {
  color: var(--primary-color);
  background-color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

/* ============================================
   HERO SECTION
   ============================================ */

section:nth-of-type(1) {
  background-image:
          linear-gradient(0deg, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)),
          url('images/background-1.jpg');
  background-size: cover;
  background-position: center;
  color: var(--white);
  padding: var(--spacing-2xl) var(--spacing-md);
  min-height: 500px;
  display: flex;
  align-items: center;
}

section:nth-of-type(1) > div {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

section:nth-of-type(1) > div > div {
  max-width: 700px;
}

section:nth-of-type(1) h1 {
  color: var(--white);
  margin-bottom: var(--spacing-lg);
}

section:nth-of-type(1) .line-divider {
  background-color: var(--white);
  margin: 0 0 var(--spacing-lg) 0;
}

section:nth-of-type(1) p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

section:nth-of-type(1) a {
  display: inline-block;
}

.company-name{
  color: var(--text-dark);
}

/* ============================================
   ABOUT SECTION
   ============================================ */

section:nth-of-type(2) {
  background-color: var(--white);
  padding: var(--spacing-2xl) var(--spacing-md);
}

section:nth-of-type(2) > div {
  max-width: 1200px;
  margin: 0 auto;
}

section:nth-of-type(2) > div > div > div {
  display: flex;
  gap: var(--spacing-2xl);
  align-items: flex-start;
}

section:nth-of-type(2) > div > div > div > div:first-child {
  flex: 0 0 35%;
  min-width: 250px;
}

section:nth-of-type(2) > div > div > div > div:last-child {
  flex: 1;
  min-width: 250px;
}

section:nth-of-type(2) h3 {
  color: var(--primary-color);
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}

section:nth-of-type(2) h2 {
  margin-bottom: var(--spacing-md);
}

section:nth-of-type(2) .line-divider {
  margin: var(--spacing-md) 0 var(--spacing-lg) 0;
  width: 50px;
}

section:nth-of-type(2) ul {
  margin-left: var(--spacing-lg);
}

section:nth-of-type(2) li {
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

/* ============================================
   PROJECTS SECTION (Swiper)
   ============================================ */

section:nth-of-type(3) {
  background-color: var(--primary-color);
  color: var(--white);
  padding: var(--spacing-2xl) var(--spacing-md);
}

section:nth-of-type(3) > div {
  max-width: 1200px;
  margin: 0 auto;
}

section:nth-of-type(3) h2 {
  color: var(--white);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

section:nth-of-type(3) .line-divider {
  background-color: var(--white);
  margin: var(--spacing-md) auto var(--spacing-lg);
}

/* ============================================
   HOW IT WORKS SECTION (Steps Grid)
   ============================================ */

section:nth-of-type(4) {
  background-color: var(--white);
  padding: var(--spacing-2xl) var(--spacing-md);
}

section:nth-of-type(4) > div {
  max-width: 1200px;
  margin: 0 auto;
}

section:nth-of-type(4) > div:first-child {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

section:nth-of-type(4) > div:first-child h2 {
  margin-bottom: var(--spacing-lg);
}

section:nth-of-type(4) .line-divider {
  margin: var(--spacing-md) auto var(--spacing-lg);
}

/* ============================================
   TESTIMONIALS SECTION (Reviews)
   ============================================ */

section:nth-of-type(5) {
  background-color: var(--primary-color);
  color: var(--white);
  padding: var(--spacing-2xl) var(--spacing-md);
}

section:nth-of-type(5) > div {
  max-width: 1200px;
  margin: 0 auto;
}

section:nth-of-type(5) > div > div:first-child {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

section:nth-of-type(5) > div > div:first-child h2 {
  color: var(--white);
  margin-bottom: var(--spacing-lg);
}

section:nth-of-type(5) .line-divider {
  background-color: var(--white);
  margin: var(--spacing-md) auto var(--spacing-lg);
}

section:nth-of-type(5) > div > div:last-child > div {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

section:nth-of-type(5) > div > div:last-child > div > div {
  background-color: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.2);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition);
}

section:nth-of-type(5) > div > div:last-child > div > div:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
}

section:nth-of-type(5) > div > div:last-child > div > div p {
  color: rgba(255, 255, 255, 0.9);
  font-style: italic;
  margin-bottom: var(--spacing-md);
  font-size: 0.95rem;
  line-height: 1.7;
}

section:nth-of-type(5) > div > div:last-child > div > div h3 {
  color: var(--white);
  font-size: 1rem;
  margin: var(--spacing-md) 0 var(--spacing-xs);
  text-transform: uppercase;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  background-color: #333;
  color: var(--white);
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
}

footer > div {
  max-width: 1200px;
  margin: 0 auto;
}

footer p {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

/* ============================================
   Swiper Projects
   ============================================ */

.swiper {
  margin-top: var(--spacing-2xl);
}

.swiper-slide {
  height: 300px;
  cursor: pointer;
}

.swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--border-radius);
}

.swiper-button-prev,
.swiper-button-next {
  color: var(--white);
}

.swiper-pagination-bullet-active {
  background-color: var(--white);
}

/* ============================================
   Modal Window
   ============================================ */

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  position: relative;
  max-width: 90%;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

#modalImage {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  opacity: 0;
  animation: fadeInImage 0.5s ease-in-out forwards;
}

@keyframes fadeInImage {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 30px;
  background: none;
  border: none;
  color: var(--white);
  font-size: 40px;
  cursor: pointer;
  z-index: 10;
}

.modal-prev,
.modal-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.3);
  border: none;
  color: var(--white);
  font-size: 30px;
  padding: 15px 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 100;
}

.modal-prev {
  left: 20px;
}

.modal-next {
  right: 20px;
}

.modal-prev:hover,
.modal-next:hover {
  background: rgba(255, 255, 255, 0.5);
}

/* ============================================
   Steps Grid
   ============================================ */

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

.step-card {
  background-color: var(--secondary-color);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition);
}

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

.step-card .icon {
  width: 100px !important;
  height: 100px !important;
  border-radius: 20% !important;
  border: 5px solid var(--primary-color) !important;
  display: block !important;
  margin: 0 auto var(--spacing-md) !important;
  object-fit: contain !important;
  padding: 10px !important;
  box-sizing: border-box !important;
}

.step-card h3 {
  color: var(--text-dark);
  margin: var(--spacing-md) 0 var(--spacing-sm);
  text-transform: uppercase;
  font-size: 1.1rem;
}

.step-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin: 0;
}

/* ============================================
   CONTACTS SECTION
   ============================================ */

.contacts-section {
  background-color: var(--white);
  padding: var(--spacing-2xl) var(--spacing-md);
}

.contacts-section > div {
  max-width: 1200px;
  margin: 0 auto;
}

.contacts-section > div > div:first-child {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.contacts-section h2 {
  margin-bottom: var(--spacing-lg);
}

.contacts-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.contacts-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contact-item h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
  font-size: 1.1rem;
  text-transform: uppercase;
}

.contact-item a {
  color: var(--text-dark);
  text-decoration: none;
  font-size: 1.05rem;
  transition: var(--transition);
}

.contact-item a:hover {
  color: var(--primary-color);
}

.contact-item p {
  color: var(--text-light);
  line-height: 1.8;
  margin: 0;
}

.contacts-map {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow-lg);
}

.contacts-map iframe {
  border: none;
}

.city{
  font-size: clamp(1rem, 1vw, 2rem);
  font-weight: 500;
}

/* ============================================
   Tablets (768px)
   ============================================ */

@media (max-width: 768px) {
  :root {
    --spacing-2xl: 40px;
    --spacing-xl: 32px;
  }

  header > div {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  nav ul {
    gap: var(--spacing-md);
  }

  section:nth-of-type(1) {
    padding: var(--spacing-xl) var(--spacing-md);
    min-height: 400px;
  }

  section:nth-of-type(2) > div > div > div {
    flex-direction: column;
    gap: var(--spacing-lg);
  }

  section:nth-of-type(2) > div > div > div > div:first-child {
    flex: 1;
  }

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

  .contacts-container {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Phones (480px)
   ============================================ */

@media (max-width: 480px) {
  :root {
    --spacing-2xl: 32px;
    --spacing-xl: 24px;
    --spacing-lg: 20px;
  }

  html {
    font-size: 14px;
  }

  header > div {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 12px 8px;
  }

  header img {
    height: 50px;
    flex-shrink: 0;
  }

  nav {
    flex-direction: row;
    width: auto;
    justify-content: flex-end;
    flex: 0;
  }

  nav ul {
    display: none;
  }

  .nav-contacts {
    padding: 6px 10px;
    font-size: 0.65rem;
    margin: 0;
    flex-shrink: 0;
  }

  section:nth-of-type(1) {
    padding: var(--spacing-lg) var(--spacing-sm);
    min-height: auto;
  }

  section:nth-of-type(1) h1 {
    margin-bottom: var(--spacing-md);
  }

  section:nth-of-type(1) p {
    font-size: 1rem;
  }

  section:nth-of-type(2) {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  section:nth-of-type(2) ul {
    margin-left: var(--spacing-md);
  }

  section:nth-of-type(3),
  section:nth-of-type(4),
  section:nth-of-type(5),
  .contacts-section {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

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

  .btn, a.btn {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.8rem;
    display: inline-flex;
    width: auto;
  }

  .line-divider {
    width: 40px;
  }
}

/* ============================================
   Improved accessibility
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

a:focus,
button:focus {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
}

/* ============================================
   Extra
   ============================================ */

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

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

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

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

.mt-md {
  margin-top: var(--spacing-md);
}

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

.mt-lg {
  margin-top: var(--spacing-lg);
}

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