* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: "Raleway", sans-serif;
  line-height: 1.6;
  color: #121714;
}

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

body::-webkit-scrollbar {
  display: none;
}

body {
  background: #ffffff;
}

/* == Navigation == */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(2rem);
  border-bottom: 0.1rem solid rgba(0, 0, 0, 0.1);
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 128rem;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 7rem;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 3rem;
  align-items: center;
  font-size: 1.4rem;
}

.nav-link {
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: #10b981;
}

.btn {
  padding: 0.5rem 1.5rem;
  border-radius: 0.8rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.4rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: #17cf61;
  padding: 1.6rem;
  font-weight: bold;
}

.btn-primary:hover {
  background: #059669;
  transform: translateY(-0.1rem);
}

.btn-outline {
  border: 0.1rem solid #d1d5db;
  background: #f0f5f2;
  padding: 1.6rem;
  font-weight: bold;
}

.btn-outline:hover {
  background: #f3f4f6;
}

.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 2.4rem;
  cursor: pointer;
}
/* == Ends Navigation == */

/* == Hero Section == */
.hero {
  margin-top: 7rem;
  padding: 6rem 2rem;
  max-width: 110rem;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  gap: 6rem;
  align-items: center;
  min-height: 50vh;
}

.hero-content {
  flex: 1;
}

.hero-content h1 {
  font-size: 4.8rem;
  font-weight: bolder;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-content p {
  font-size: 1.6rem;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-hero {
  padding: 1rem 2rem;
  font-size: 1.6rem;
  border-radius: 1.2rem;
}

.hero-image {
  flex: 1;
  position: relative;
  border-radius: 1.2rem;
  overflow: hidden;
  box-shadow: 0 2.5rem 5rem -1.2rem rgba(0, 0, 0, 0.25);
  transform: rotate(2deg);
  transition: transform 0.3s ease;
}

.hero-image:hover {
  transform: rotate(0deg) scale(1.02);
}

.hero-image img {
  width: 100%;
  height: 40rem;
  object-fit: cover;
}
/* == Ends Hero Section == */

/* == Features Section == */
.features {
  padding: 2rem 2rem;
}

.features-container {
  max-width: 110rem;
  margin: 0 auto;
}

.features h2 {
  font-size: 2.2rem;
  font-weight: bold;
  margin-bottom: 5.5rem;
}

.features-subtitle {
  font-size: 3.6rem;
  font-weight: bolder;
  letter-spacing: -1px;
  margin-bottom: 1rem;
}

.features-description {
  font-size: 1.6rem;
  margin-bottom: 4rem;
}

.features-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 3.2rem;
}

.feature-card {
  background: white;
  padding: 3.2rem;
  border-radius: 1.6rem;
  border: 0.1rem solid #dbe5de;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  flex: 1;
  flex-grow: 1;
  flex-basis: 100;
  min-width: 30rem;
}

.feature-card:hover {
  transform: translateY(-0.5rem);
  box-shadow: 0 2rem 2.5rem -0.5rem rgba(0, 0, 0, 0.1);
}

.feature-card h3 {
  font-size: 1.6rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: #638773;
  line-height: 1.6;
  font-size: 1.4rem;
}
/* == Ends Features Section == */

/* == Chat Preview Section == */
.chat-preview {
  padding: 9rem 2rem;
  max-width: 110rem;
  margin: 0 auto;
}

.chat-preview h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 3rem;
  color: #111827;
}

.chat-container img {
  width: 100%;
}

.chat-container {
  width: 100%;
}
/* == Ends Chat Preview Section == */

/* == Footer Section == */
.footer {
  padding: 6rem 2rem 3.2rem;
}

.footer-container {
  max-width: 110rem;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  flex-direction: column;
  gap: 3.2rem;
  margin-bottom: 3.2rem;
}

.footer-section {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  min-width: 20rem;
}

.footer-section a {
  color: #638773;
  text-decoration: none;
  transition: color 0.3s ease;
  font-weight: 500;
  font-size: 1.6rem;
}

.footer-section a:hover {
  color: #10b981;
}

.social-icons {
  display: flex;
  gap: 1.6rem;
  margin-top: 1.6rem;
}

.social-icons {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  font-size: 2.5rem;
}

.fab,
.fa-brands {
  color: #638773;
}

.fab:hover {
  color: red;
}

.footer-bottom {
  text-align: center;
  padding-top: 3.2rem;
  color: #638773;
  font-size: 1.6rem;
}
/* == Ends Footer Section == */

/* == Responsive Design Section == */
@media (max-width: 76.8rem) {
  .hamburger {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 7rem;
    left: -100%;
    width: 100%;
    background: white;
    flex-direction: column;
    padding: 3.2rem;
    transition: left 0.3s ease;
    box-shadow: 0 1rem 1.5rem -0.3rem rgba(0, 0, 0, 0.1);
  }

  .nav-menu.active {
    left: 0;
  }

  .hero {
    flex-direction: column;
    gap: 3.2rem;
    text-align: center;
  }

  .hero-content h1 {
    font-size: 4rem;
  }

  .hero-image {
    order: -1;
    transform: none;
  }

  .features-subtitle {
    font-size: 3.2rem;
  }

  .chat-preview h2 {
    font-size: 3.2rem;
  }

  .hero-buttons {
    justify-content: center;
  }

  .features-grid {
    flex-direction: column;
  }

  .feature-card {
    min-width: auto;
  }
}

@media (max-width: 48rem) {
  .hero-content h1 {
    font-size: 3.2rem;
  }

  .nav-container {
    padding: 0 1.6rem;
  }

  .hero,
  .features,
  .chat-preview {
    padding-left: 1.6rem;
    padding-right: 1.6rem;
  }

  .logo {
    font-size: 2rem;
  }

  .features h2 {
    font-size: 2.4rem;
  }

  .features-subtitle {
    font-size: 2.8rem;
  }

  .chat-preview h2 {
    font-size: 2.8rem;
  }

  .btn-hero {
    padding: 1.2rem 2.4rem;
    font-size: 1.6rem;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content > * {
  animation: fadeInUp 0.8s ease forwards;
}

.hero-content h1 {
  animation-delay: 0.1s;
}

.hero-content p {
  animation-delay: 0.2s;
}

.hero-buttons {
  animation-delay: 0.3s;
}
/* == Ends Responsive Design Section == */