:root {
  --color-orange: #f97316;
  --color-orange-light: #fb923c;
  --color-ice: #e0f2fe;
  --color-ice-dark: #0ea5e9;
  --color-dark: #0f172a;
  --color-gray: #64748b;
  --color-light: #f0f9ff;
  --color-white: #ffffff;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --max-width: 72rem;
  --space-xs: .5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --radius: 1rem;
  --radius-xl: 1.5rem;
}

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

body {
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--color-dark);
  background: linear-gradient(180deg, var(--color-white) 0%, var(--color-light) 100%);
  min-height: 100vh;
}

nav {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-block: var(--space-lg);
  padding-inline: var(--space-md);

  .logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -.025em;
    color: var(--color-dark);
    text-decoration: none;

    &:hover {
      color: var(--color-orange);
    }
  }
}

header {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-block: var(--space-2xl) var(--space-lg);
  padding-inline: var(--space-md);
  text-align: center;
  position: relative;

  h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-block-end: var(--space-md);
    letter-spacing: -.02em;
  }

  p {
    font-size: 1.25rem;
    color: var(--color-gray);
    max-width: 40rem;
    margin-inline: auto;
  }
}

.wave {
  block-size: 3rem;
  margin-block-start: calc(-1 * var(--space-lg));
  position: relative;
  z-index: 1;

  svg {
    inline-size: 100%;
    block-size: 100%;
    display: block;
  }
}

.templates {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-block: var(--space-2xl);
  padding-inline: var(--space-md);
  position: relative;

  &::before {
    content: '';
    position: absolute;
    inset-block-start: 0;
    inset-inline: 0;
    block-size: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--color-ice-dark) 50%, transparent 100%);
    opacity: .3;
  }

  h2 {
    font-size: 1.875rem;
    font-weight: 700;
    text-align: center;
    margin-block-end: var(--space-xl);
  }

  .grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);

    article {
      background: var(--color-white);
      padding: var(--space-lg);
      border-radius: var(--radius-xl);
      border: 1px solid var(--color-ice);
      transition: transform .2s ease, box-shadow .2s ease;

      &:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 30px -12px rgba(14, 165, 233, .15);
      }

      h3 {
        font-size: 1.125rem;
        font-weight: 600;
        margin-block-end: var(--space-xs);
        color: var(--color-dark);
      }

      p {
        color: var(--color-gray);
        font-size: .9375rem;
      }
    }
  }
}

.features {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-block: var(--space-2xl);
  padding-inline: var(--space-md);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-xl);
  text-align: center;
  position: relative;

  &::before {
    content: '';
    position: absolute;
    inset-block-start: 0;
    inset-inline: 0;
    block-size: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--color-ice-dark) 50%, transparent 100%);
    opacity: .2;
  }

  div {
    h3 {
      font-size: 1.125rem;
      font-weight: 600;
      margin-block-end: var(--space-xs);

      &::before {
        content: '';
        display: block;
        inline-size: .5rem;
        block-size: .5rem;
        background: var(--color-ice-dark);
        border-radius: 50%;
        margin-inline: auto;
        margin-block-end: var(--space-sm);
        opacity: .6;
      }
    }

    p {
      color: var(--color-gray);
      font-size: .9375rem;
    }
  }
}

.launch {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-block: var(--space-2xl);
  padding-inline: var(--space-md);
  text-align: center;

  p {
    margin-block-end: var(--space-sm);

    strong {
      font-size: 1.25rem;
      color: var(--color-orange);
    }

    a {
      color: var(--color-orange);
      text-decoration: none;
      font-weight: 500;

      &:hover {
        text-decoration: underline;
      }
    }
  }
}

footer {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-block: var(--space-xl);
  padding-inline: var(--space-md);
  text-align: center;
  position: relative;

  &::before {
    content: '';
    position: absolute;
    inset-block-start: 0;
    inset-inline: 10%;
    block-size: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--color-ice-dark) 50%, transparent 100%);
    opacity: .2;
  }

  p {
    color: var(--color-gray);
    font-size: .875rem;
  }
}