// Body scroll lock when nav is open
body.no-scroll {
  overflow: hidden;
}

@media (max-width: 930px) {
  // ---- HEADER ----
  body > header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3.5rem;
    margin: 0;
    border-radius: 0;
    box-sizing: border-box;
    padding: 1rem var(--padding-body);
    z-index: 9999;

    nav {
      display: flex;
      align-items: center;
      position: relative;
      z-index: 2;

      .nav-logo {
        display: block;
        font-size: 1rem;
        z-index: 2;
      }

      .burger {
        margin-left: auto;
        width: 7.125rem;
        height: 1.25rem;
        position: relative;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        align-items: center;
        z-index: 2;

        span {
          display: block;
          width: 100%;
          height: 1px;
          background-color: #fff;
          transition: transform 0.3s ease, opacity 0.3s ease;
          transform-origin: center;
        }
      }

      // Full-screen overlay
      ul {
        position: fixed;
        display: block;
        top: 0;
        left: 0;
        width: 100%;
        height: 100dvh;
        background-color: var(--color-blue);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem var(--padding-body) 2rem;
        box-sizing: border-box;
        z-index: 1;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s ease-in-out;

        li {
          width: 100%;

          a {
            display: block;
            padding: 0.5rem 0;
            font-size: 2.5rem;
            font-weight: 400;
          }
        }

        li:first-child {
          width: 100%;
          font-size: 2.5rem;

          a {
            font-family: var(--font-narrow);
            text-transform: uppercase;
          }
        }

        li:not(:first-child) {
          font-family: var(--font-narrow);
          font-size: 2rem;
          text-transform: uppercase;
          font-weight: 700;
        }
      }
    }

    // ---- OPEN STATE ----
    &.nav-open nav {
      ul {
        opacity: 1;
        pointer-events: all;
      }

      .burger span:nth-child(2) {
        opacity: 0;
      }

      .burger span:first-child {
        transform: translateY(0.55rem) rotate(10deg);
      }

      .burger span:last-child {
        transform: translateY(-0.55rem) rotate(-10deg);
      }
    }
  }

  // Compensate fixed header
  main {
    padding-top: 3.5rem;
  }

  section {
    scroll-margin-top: calc(4.8125rem + 1rem);
  }

  // ---- HERO ----
  section#hero {
    height: auto;
    min-height: 100vh;
    text-align: center;
    align-items: center;
    padding: 4rem var(--padding-body) 3rem;
    background-position: 74% -44vh;
    background-size: 96vh;

    .title {
      font-size: 4rem;
    }

    .subtitle {
      margin-bottom: 2rem;
    }

    #preorder-button {
      position: static;
    }
  }

  // ---- QUOTES ----
  section#quote-full,
  section#quote {
    padding: 4rem var(--padding-body);

    blockquote {
      font-size: 1.5rem;
    }
  }

  // ---- THE BOOK ----
  section#the-book {
    padding: 4rem var(--padding-body);

    .summary-wrapper {
      grid-template-columns: 1fr;
      gap: 2rem;

      .title-wrapper .title {
        font-size: 2.5rem;
      }
    }

    .data-wrapper {
      flex-wrap: wrap;
      gap: 1.5rem;
      justify-content: center;

      .data {
        width: 40%;
      }
    }

    .claim-wrapper {
      grid-template-columns: 1fr;
      gap: 2rem;

      img {
        border-radius: var(--radius-section);
      }

      .text .big {
        font-size: 1.75rem;
      }
    }
  }

  // ---- EXCERPTS ----
  section#excerpts {
    padding: 4rem var(--padding-body);

    header .title {
      font-size: 2.5rem;
    }

    .swiper-slide .item {
      width: 100%;
      max-width: 20rem;
      text-align: center;
    }
  }

  // ---- HANDLES ----
  section#handles {
    margin: 3rem var(--padding-body);
    padding: 0;

    header {
      flex-direction: column;
      align-items: flex-start;
      gap: 1rem;

      .title-wrapper .title {
        font-size: 2.5rem;
      }

      .subtitle {
        margin-right: 0;
      }
    }

    .path {
      width: 100%;
      margin-top: 3rem;

      .step {
        width: 100%;
      }

      .step:nth-child(even) {
        margin-left: 0;
      }
    }
  }

  // ---- SYSTEM ----
  section#system {
    flex-direction: column;
    margin: 3rem var(--padding-body);
    padding: 0;
    gap: 3rem;

    .text {
      max-width: 100%;
      height: auto;

      .title {
        font-size: 2.5rem;
      }

      .bottom {
        margin-top: 2rem;
      }
    }

    figure {
      width: 100%;
      margin: 0;
      height: auto;
    }
  }

  // ---- EXCERPT (single) ----
  section#excerpt {
    padding: 4rem var(--padding-body);

    .wrapper {
      width: 100%;

      .chapter-title {
        font-size: 2rem;
      }
    }
  }

  // ---- AUTHOR ----
  section#author {
    flex-direction: column;
    padding: 4rem var(--padding-body);
    align-items: center;

    img {
      width: 100%;
      height: auto;
      margin-right: 0;
      margin-bottom: 3rem;
    }

    .text {
      width: 100%;

      .author-name {
        font-size: 2.5rem;
        margin-bottom: 2rem;
      }
    }
  }

  // ---- BUY ----
  section#buy {
    flex-direction: column;
    padding: 4rem var(--padding-body);
    align-items: center;
    gap: 3rem;

    .text {
      width: 100%;
      margin-left: 0;

      .title {
        font-size: 2.5rem;
      }

      .buy-links {
        margin-top: 2.5rem;
      }
    }

    img {
      width: 100%;
      height: auto;
    }
  }

  // ---- FOOTER ----
  body > footer {
    padding: 3rem var(--padding-body);

    header .title {
      font-size: 2.5rem;
    }

    .contact {
      width: 100%;
      flex-direction: column;
      gap: 2rem;
      margin-top: 3rem;
    }

    .legal {
      width: 100%;
      margin-top: 3rem;
    }
  }
}