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

:root {
  --color-background: #ffffff;
  --color-light: #ebd9ff;
  --color-dark: #442980;
  --color-violet: #ac81f2;
  --color-orange: #ff7a0f;
  --color-rose: #ff008c;
  --color-yellow: #ffc905;
  --color-black: #0a0a0a;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html {
  font-size: 16px;
}

body {
  font-family: var(--font);
  background-color: var(--color-background);
  color: var(--color-black);
  line-height: 1.5;
}

main {
  padding: 0 64px;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

header {
  padding: 24px 64px;
}

.header-container {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-text {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-orange);
}

.nav-bar {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-black);
  transition: all 0.3s ease;
}
.nav-link:hover {
  color: var(--color-orange);
}

.nav-btn {
  width: 130px;
  text-align: center;
  padding: 12px 16px;
  background-color: var(--color-black);
  color: var(--color-background);
  font-size: 16px;
  font-weight: 500;
  border-radius: 56px;
  transition: all 0.3s ease;
}
.nav-btn:hover {
  transform: scale(0.97);
}

.hero {
  padding: 64px;
  margin-bottom: 230px;
  box-sizing: border-box;
  background-color: var(--color-light);
  border-radius: 56px;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 3rem;
  min-height: 600px;
}

.hero-content {
  flex: 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  max-width: 1100px;
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.75;
  text-transform: uppercase;
}

.highlight {
  color: var(--color-orange);
}

.btn-start {
  display: inline-block;
  padding: 16px 36px;
  background-color: var(--color-black);
  color: var(--color-background);
  font-size: 20px;
  font-weight: 500;
  border-radius: 56px;
  width: 600px;
  transition: all 0.3s ease;
}
.btn-start:hover {
  transform: scale(0.97);
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 600px;
}

.hero-image img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.cursor {
  display: inline-block;
  width: 3px;
  margin-left: 4px;
  animation: blink 0.7s infinite;
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

.about {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  gap: 156px;
  margin-bottom: 230px;
  min-height: 600px;
}

.about-image {
  flex: 1;
  max-width: 750px;
}

.about-image img {
  width: 100%;
  height: auto;
}

.about-content {
  flex: 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: right;
  gap: 64px;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.about-title {
  font-size: 48px;
  font-weight: 800;
}

.about-description {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-black);
  line-height: 2;
}

.about-cards {
  display: flex;
  justify-content: flex-end;
  gap: 32px;
}

.about-card {
  width: 200px;
  height: 200px;
  border-radius: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
}

.orange-card {
  background-color: var(--color-orange);
}
.dark-card {
  background-color: var(--color-dark);
}
.rose-card {
  background-color: var(--color-rose);
}

.about-card-icon {
  width: 130px;
  height: 130px;
}

.about-card-label {
  display: inline-block;
  padding: 4px 24px;
  background-color: var(--color-yellow);
  font-size: 32px;
  font-weight: 700;
  border-radius: 56px;
}

.audience {
  margin-bottom: 230px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  grid-template-rows: auto auto;
  gap: 64px;
  align-items: center;
}

.audience-card {
  position: relative;
  border-radius: 56px;
  overflow: hidden;
  aspect-ratio: 1;
}

.audience-card img {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80%;
  height: auto;
  object-fit: contain;
  display: block;
}

.student {
  background-color: var(--color-orange);
}
.teacher {
  background-color: var(--color-rose);
}

.btn-audience {
  position: absolute;
  top: 32px;
  right: 32px;
  width: 100px;
  height: 100px;
  background-color: var(--color-black);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 1;
}

.btn-audience svg {
  width: 56px;
  height: 56px;
  color: var(--color-background);
  transition: all 0.3s ease;
}

.btn-audience:hover {
  background-color: var(--color-background);
}
.btn-audience svg:hover {
  color: var(--color-black);
}

.audience-title {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 64px;
}

.audience-title h2 {
  font-size: 64px;
  font-weight: 800;
  text-align: center;
  line-height: 1.5;
  text-transform: uppercase;
}

.audience-title .line {
  display: block;
}

.audience-desc {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-black);
  line-height: 1.5;
  text-align: center;
}

.audience-spacer {
  display: block;
}