:root {
  /* Colors */
  --color-primary: #4138c2;
  --color-primary-dark: #2f2a8e;
  --color-text: #121826;
  --color-text-secondary: #4d5562;
  --color-white: #fff;
  --color-border: #e5e7eb;

  /* Theme colors */
  --color-purple: #4138c2;
  --color-green: #5ec269;
  --color-red: #e14f62;
  --color-yellow: #e2b53e;
  --color-orange: #e87b35;
  --color-blue: #4e80ee;
  --color-violet: #9d59ef;
  --color-green-pie: #52b3d0;

  /* Background colors */
  --bg-purple: #c9d2fa;
  --bg-green: #e2fbe8;
  --bg-red: #fbe5e6;
  --bg-yellow: #fdf9c9;
  --bg-orange: #fceed8;
  --bg-blue: #dee9fc;
  --bg-violet: #f1e8fd;
  --bg-green-pie: #d5faf1;

  /* Spacing */
  --spacing-sm: 0.75rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 2.25rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 4.5rem;

  /* Typography */
  --font-size-base: 1rem;
  --font-size-lg: 2rem;
  --font-size-xl: 2.25rem;
  --line-height-base: 1.5;
}

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

/* Base styles */
html {
  font-size: var(--font-size-base);
}

body {
  font-family: "Be Vietnam Pro", serif;
  font-weight: 400;
  color: var(--color-text);
  line-height: var(--line-height-base);
}

p {
  text-wrap: pretty;
}

/* Color utility classes */
.purple {
  color: var(--color-purple);
}
.green {
  color: var(--color-green);
}
.red {
  color: var(--color-red);
}
.yellow {
  color: var(--color-yellow);
}
.orange {
  color: var(--color-orange);
}
.blue {
  color: var(--color-blue);
}
.violet {
  color: var(--color-violet);
}
.green-pie {
  color: var(--color-green-pie);
}

/* Layout */
.container {
  max-width: 1200px;
  margin-inline: clamp(var(--spacing-md), 5vw, var(--spacing-3xl));
  padding-inline: clamp(var(--spacing-sm), 3vw, var(--spacing-md));
}

/* Header */
header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  padding-block: clamp(var(--spacing-sm), 2vw, var(--spacing-md));
}

/* Buttons */
.transparent-button,
.purple-button {
  font-size: clamp(0.875rem, 1vw, 1rem);
  padding: var(--spacing-sm) clamp(var(--spacing-lg), 3vw, var(--spacing-xl));
  border-radius: 2rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.3s, border-color 0.3s;
}

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

.transparent-button:hover {
  background-color: var(--bg-purple);
  border-color: var(--bg-purple);
}

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

.purple-button:hover {
  background-color: var(--color-primary-dark);
}

/* Main content */
main {
  margin-block-end: clamp(var(--spacing-2xl), 5vw, var(--spacing-3xl));
}

/* Hero section */
.hero {
  display: flex;
  flex-direction: column;
  gap: --spacing-lg;
  padding-block: --spacing-lg;
  margin-bottom: --spacing-xl;
}

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

.hero-text h1 {
  font-size: clamp(1.75rem, 5vw, var(--font-size-xl));
  font-weight: 700;
}

.hero-text p {
  color: var(--color-text-secondary);
  margin-block: var(--spacing-lg);
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

/* Features section */
.features {
  padding-block: var(--spacing-3xl);
  text-align: center;
}

.features h1 {
  font-size: clamp(1.5rem, 4vw, var(--font-size-lg));
  font-weight: 700;
  margin-bottom: clamp(var(--spacing-md), 3vw, var(--spacing-lg));
}

.grid {
  display: grid;
  margin: 0 auto;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  max-width: 750px;
  gap: var(--spacing-2xl);
}

/* Cards */
.card div {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  width: 72px;
  height: 72px;
  border-radius: 1rem;
  margin-inline: auto;
  margin-bottom: var(--spacing-md);
}

.card p {
  font-weight: 700;
}

/* Card background colors */
.card-purple {
  background-color: var(--bg-purple);
}
.card-green {
  background-color: var(--bg-green);
}
.card-red {
  background-color: var(--bg-red);
}
.card-yellow {
  background-color: var(--bg-yellow);
}
.card-orange {
  background-color: var(--bg-orange);
}
.card-blue {
  background-color: var(--bg-blue);
}
.card-violet {
  background-color: var(--bg-violet);
}
.card-green-pie {
  background-color: var(--bg-green-pie);
}

/* Pre-footer */
.pre-footer {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-image: url("./images/footer_background_image@2x.png");
  width: 100%;
  height: 580px;
  background-size: cover;
  text-align: center;
  padding-inline: var(--spacing-sm);
}

.pre-footer h1 {
  font-size: clamp(1.5rem, 4vw, var(--font-size-lg));
  font-weight: 700;
  color: var(--color-white);
  max-width: 400px;
  margin-bottom: var(--spacing-md);
}

/* Footer */
.footer {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  justify-content: center;
  background-color: var(--color-text);
  color: #9da3ae;
  padding-block: var(--spacing-md);
  text-align: center;
}

.footer :nth-child(2),
.footer :nth-child(3) {
  font-weight: 700;
}

/* Media queries */

@media (min-width: 1024px) {
  .container {
    margin-inline: auto;
    padding-inline: var(--spacing-md);
  }

  .hero {
    flex-direction: row-reverse;
    align-items: center;
  }
}