/* Reset styles */
* {
  overflow-y: auto;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Base styles */
body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  position: relative;
  min-height: 100vh;
  background: #f9f9f9;
}

/* Background image behind all content */
.background-image {
  position: fixed;
  width: 100vw;
  height: 100vh;
  top: 0;
  left: 0;
  object-fit: cover;
  z-index: 0;
  opacity: 0.9; /* subtle dim */
  pointer-events: none; /* so clicks pass through */
}

/* Header styles */
header {
  background-color: #fff;
  padding: 1rem 5%;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  transition: background-color 0.3s ease;
  position: relative;
  z-index: 10; /* higher than background */
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

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

.logo h2 {
  color: rgb(65, 199, 199);
  font-weight: 700;
  font-size: 1.6rem;
  user-select: none;
}

/* Navigation */
nav ul {
  display: flex;
  list-style-type: none;
}

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

nav ul li a {
  text-decoration: none;
  color: #333;
  font-weight: 600;
  transition: color 0.3s ease;
  user-select: none;
}

nav ul li a:hover {
  color: #00bcd4;
}

/* Hero Section */
.hero {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  color: #394136f7;
  padding: 6rem 10%;
  position: relative;
  z-index: 5;
  min-height: 80vh;
  align-items: center;
  background: transparent;
}

.hero-content {
  max-width: 600px;
  width: 100%;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1.25rem;
  color: rgb(0, 0, 0);
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  color: #000000;
  line-height: 1.5;
}

/* Buttons */
.learn-more,
#askchat {
  background-color: #00bcd4;
  color: #fff;
  border: none;
  padding: 0.75rem 2.5rem;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
  border-radius: 5px;
  font-weight: 600;
  user-select: none;
}


.hero-actions {
  display: flex;
  align-items: center;
  margin-top: 1rem;
}

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  z-index: 10000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow-y: auto;
  background-color: rgba(224, 224, 224, 0);
}

.modal-content {
  background-color: #ffffff;
  margin: 8% auto;
  padding: 30px;
  border: 1px solid #03c8f4;
  width: 500px;
  max-width: 90%;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(12, 132, 196, 0.3);
  position: relative;
}

.close-button {
  color: #00aeff;
  position: absolute;
  right: 20px;
  top: 15px;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  user-select: none;
}

.close-button:hover,
.close-button:focus {
  color: rgb(215, 13, 13);
  text-decoration: none;
}

/* Search container inside modal */
.search-container {
  position: relative;
  margin-bottom: 40px;
}

.search-container input {
  width: 100%;
  padding: 0.75rem 3rem 0.75rem 1rem; /* space for icons */
  font-size: 1rem;
  border: 1px solid #00d0f5;
  border-radius: 50px;
  outline: none;
  transition: border-color 0.3s ease;
}

.search-container input:focus {
  border-color: #00bcd4;
  box-shadow: 0 0 5px rgba(0, 188, 212, 0.5);
}

/* Ask chatbot button */
.ask-container {
  background-color: #ffffff;
  border-radius:100px;
  position: fixed;
  right: 540px;
  top: 38.9%;
  transform: translateY(-55%);
  display: flex;
  
}

/* Response text */
.response {
  margin-top: 4rem;
  padding: 1rem;
  background-color: #7eeaec34;
  border-radius: 6px;
  color: #020202;
  font-size: 1rem;
  display: none;
  max-height: 200px;
  overflow-y: auto;
  white-space: pre-wrap;
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 4rem 5%;
    min-height: 70vh;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }

  nav ul li {
    margin-left: 1rem;
    margin-bottom: 0.5rem;
  }

  .modal-content {
    width: 90%;
  }
}