@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;700&family=Open+Sans:wght@400;600&display=swap');

:root {
  --primary-color: #3982EB;
  --text-primary: #333333;
  --text-secondary: #666666;
  --background-color: #FFFFFF;
  --section-padding: 5rem 2rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Open Sans', sans-serif;
  color: var(--text-primary);
  background-color: var(--background-color);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  border-radius: 4px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
  margin-right: 1rem;
  margin-bottom: 1rem;
}

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

.btn-primary:hover {
  background-color: transparent;
  color: var(--primary-color);
  text-decoration: none;
}

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

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: white;
  text-decoration: none;
}

section {
  padding: var(--section-padding);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2.5rem;
  color: var(--text-primary);
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background-color: var(--primary-color);
}

/* Header styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  padding: 1rem 0;
  z-index: 1000;
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header.scrolled {
  padding: 0.7rem 0;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

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

.logo a {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo img {
  height: 40px;
  margin-right: 10px;
}

.logo span {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  color: var(--text-primary);
  font-size: 1.2rem;
}

.nav ul {
  display: flex;
  list-style: none;
}

.nav ul li {
  margin-left: 2rem;
}

.nav ul li a {
  color: var(--text-primary);
  font-family: 'Montserrat', sans-serif;
  font-weight: 500;
  transition: all 0.3s ease;
}

.nav ul li a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--text-primary);
  margin-bottom: 5px;
  border-radius: 3px;
  transition: all 0.3s ease;
}

/* Hero section styles */
.hero {
  padding-top: 8rem;
  padding-bottom: 5rem;
  background-color: #f9f9f9;
}

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

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.hero-text {
  margin-bottom: 2rem;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

/* About section styles */
.about {
  background-color: white;
}

.about-content {
  display: flex;
  flex-direction: column;
  max-width: 800px;
  margin: 0 auto;
}

.about-text h3 {
  color: var(--primary-color);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

/* Services section styles */
.services {
  background-color: #f9f9f9;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.service-category {
  margin-bottom: 2rem;
}

.service-category h3 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-color);
}

.service-item {
  margin-bottom: 1.5rem;
}

.service-item h4 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

/* Notebook section styles */
.notebook {
  background-color: white;
}

.notebook-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.notebook-image img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.notebook-text h3 {
  color: var(--primary-color);
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

.notebook-cta {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
}

/* Contact section styles */
.contact {
  background-color: #f9f9f9;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-note {
  font-style: italic;
  color: var(--text-secondary);
  margin-top: 1rem;
}

.contact-form form {
  display: flex;
  flex-direction: column;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-family: 'Open Sans', sans-serif;
  transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(57, 130, 235, 0.2);
}

/* Footer styles */
.footer {
  background-color: #333;
  color: white;
  padding: 3rem 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

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

.footer-logo img {
  height: 30px;
  margin-right: 10px;
  filter: brightness(0) invert(1);
}

.footer-logo p {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  margin-bottom: 0;
}

.back-to-top {
  text-align: center;
}

.back-to-top a {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.back-to-top a:hover {
  background-color: white;
  color: var(--primary-color);
}

/* Mobile menu styles */
.nav.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

/* Responsive styles */
@media (max-width: 992px) {
  .notebook-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .notebook-image {
    order: -1;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  
  .nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: white;
    padding: 1rem 0;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }
  
  .nav ul {
    flex-direction: column;
    align-items: center;
  }
  
  .nav ul li {
    margin: 1rem 0;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-logo {
    margin-bottom: 1rem;
  }
}