:root {
  --font-body: 'Atkinson Hyperlegible', 'Lucida Sans', 'Lucida Sans Regular',
    'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
  --accent-color: hsl(275, 41%, 51%);
  --alt-color: hsl(0, 0%, 96%);
  --faint-color: hsl(287, 36%, 95%);
  --shadow: 0 2px 4px 0 hsla(0, 0%, 0%, 0.2);
}

@font-face {
  font-family: 'Atkinson Hyperlegible';
  src: local('Atkinson Hyperlegible'),
    url('../fonts/AtkinsonHyperlegibleNext.woff2') format('woff2'),
    url('../fonts/AtkinsonHyperlegibleNext-VariableFont_wght.ttf')
      format('truetype');
}

body {
  font-family: var(--font-body);

  margin: 0;
  padding: 0;
  color: #333;
  background-color: #f4f4f4;

  background: radial-gradient(#ffffff, #d7d7d7);

  overflow-x: hidden;
}

.logo {
  width: 1.5em;
}

/* Navbar styling */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--faint-color);
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar a {
  color: var(--accent-color);
  text-decoration: none;
  font-size: 2.2em;
  font-weight: bold;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 1em;
  font-weight: 350;

}

.navbar {
  box-shadow: var(--shadow);
  background: rgba(255, 255, 255, 0.4); 
  backdrop-filter: blur(12px); 
  /* box-shadow: rgba(255, 255, 255, 0.5) 0px 1px 0px 0px; */
}

ul.top-nav {
  list-style-type: none;
  display: flex;
  justify-content: space-evenly;
  gap: 1em;
}

ul.top-nav li a {
  list-style-type: none;
  display: flex;
  font-size: 1.5em;
}

.content-container {
  padding: 5rem 2rem;
  /* text-align: center; */
  /* background-color: #e3f2fd; */
  color: hsl(0, 0%, 13%);
}

h1 {
  font-size: 3rem;
  color: var(--accent-color);
}

h2 {
  color: var(--accent-color);
}

p {
  font-size: 1.2rem;
  margin-block: 2rem;
}

.features-section {
  /* border: #00796b 2px solid;
  border-top-right-radius: 3rem;
  border-top-left-radius: 3rem; */
  /* background-color: #ffca28; */
  padding: 3rem;
  color: var(--alt-color);
  text-align: center;
}

#features-heading {
  color: var(--accent-color); 
}

.features-container {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
}

.feature-item {
  max-width: 200px;
  text-align: center;
  margin: 1rem;
  transition: transform 0.3s, box-shadow 0.3s;
  padding: 1.5rem;
  background-color: var(--accent-color);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.feature-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow);
}

.feature-icon {
  font-size: 3rem;
  color: var(--alt-color);
}

.feature-icon {
  display: inline-block;
  width: 2em;
  height: 2em;
}

.feature-ai {
  background-image: url('../images/ai-icon.svg');
}

.feature-audio {
  background-image: url('../images/audio-icon.svg');
}

.feature-annotation {
  background-image: url('../images/annotation-icon.svg');
}

.feature-personalization {
  background-image: url('../images/personalization-icon.svg');
}

.cta-section {
  padding: 2rem;
  /* background-color: #00796b; */
  /* color: var(--alt-color); */
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.cta-section h2 {
  padding: 0;
  margin: 0;
}

.signup-button {
  align-self: center;
  display: block;
  padding: 1rem 2rem;
  background-color: var(--accent-color);
  color: var(--alt-color);
  font-size: 1.2rem;
  font-weight: bold;
  border-radius: 5px;
  text-decoration: none;
  transition: background-color 0.3s ease;
  box-shadow: var(--shadow);
}

.signup-button:hover {
  background-color: #ffb300;
  color: var(--accent-color);
}

main.content-container {
  max-width: 45em;
  margin-inline: auto;
  letter-spacing: 1px;
  line-height: 1.8em;
  text-align: justify;
}

.todo {
  background-color: gainsboro;
  font-style: italic;
  font-size: smaller;
}

/* Parallax Section */


.parallax {
  background-image: url('../images/hero-2.jpg');
  min-height: 600px;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  position: relative;
  z-index: 1;
}

.parallax-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--accent-color);
  text-align: center;
}

.parallax-content h1 {
  font-size: 3.5rem;
  margin: 0;
}

.parallax-content p {
  font-size: 1.5rem;
}

.shim {
  background-color: hsl(0, 0%, 96%, 0.7);
  padding: 1em;
  border-radius: 0.2em;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px); 
}

/* Footer */


footer {
  padding: 2rem;
  background-color: var(--accent-color);
  color: var(--alt-color);
}

#copyright {
  text-align: center;
}

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

.footer-container {
  display: flex;
  flex-direction: row;
  justify-content: space-evenly;
  align-items: flex-start;
}


footer ul {
  list-style-type: none;
  padding: 0;
}

.hidden {
  display: none;
}