/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Bangers&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Bangers&family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

:root {
  /* Color */
  --primary-color: #778899;
  --primary-color: #010c15;
  --secondary-color: #1a6985;
  --secondary-color: #1e7898;
  --secondary-color: #165a72;

  --action-color: #95e8e3;
  --action-color: #07efeb;
  --action-color: #00ffff;
  --action-color-hover: #08dada;
  --action-color-hover: #00e6e6;
  --tag-color: #697187a9;
  --tag-color: #697187a9;
  --tag-color--hover: #69718788;

  --body-color: #e6e3e3;
  --body-color: #010c15;
  --dark-hover: #00000048;
  --light-hover: #77889953;
  --btn-color: forestgreen;
  /* Text Color */
  --text-dark: #000;
  --text-light: #fff;
  --text-light: #95e8e3;
  --text-light: #98d1cd;
  --text-light: cadetblue;
  --text-light: rgb(148, 203, 205);
  /* Font Sizes */
  --normal-font-size: 1.6rem;

  --h1-font-size: clamp(30px, calc(4vw + 0.5rem), 100px);
  --h2-font-size: 2.4rem;
  --h4-font-size: clamp(15px, calc(2vw + 0.5rem), 25px);

  --nav-font-size: 2.4rem;
  --btn-font-size: 2.2rem;
  /* Font Family */
  --font-styled: 'Bangers', system-ui;
  --font-normal: 'Poppins', sans-serif;
  /* Spacing */
  --border-radius: 10px;
  --button-border-radius: 15px;
  --container-width: 140rem;
  --container-width-md: 100rem;
  --container-width-sm: 80rem;
  --container-margin: 5rem;
  --container-margin-bottom: 10rem;
  --section-mb: 10rem;

  /* From image */
  --img-col-1: #203441;
  --img-col-2: #263c4c;
  --img-col-3: #3c4c30;
  --img-col-6: #4b453f;
  --img-col-5: #7a8668;
  --img-col-4: #7c7a7c;
  --img-col-7: #0f1a21;
  --img-col-8: #00050b;
  --img-col-9: #010c15;
  --img-col-10: #142734;
  --img-col-10: #1f87a1;
  --img-col-11: #d0c1ac;
  --img-col-12: #00050b;
  --img-col-13: #00050b;
}

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

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
  /* overflow-x: hidden; */
}

body {
  /* display: flex;
  flex-direction: column; */
  font-family: var(--font-normal);
  background-color: var(--body-color);
}

section.container {
  margin-top: var(--container-margin-bottom);
}

/* Reusable classes */
.container {
  width: calc(min(100%, var(--container-width)) - var(--container-margin) * 2);
  margin: 0 auto;
}
.container-md {
  width: calc(
    min(100%, var(--container-width-md)) - var(--container-margin) * 2
  );
  margin: 0 auto;
}
.container-sm {
  width: calc(
    min(100%, var(--container-width-sm)) - var(--container-margin) * 2
  );
  margin: 0 auto;
}

.flex-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.btn {
  font-family: var(--font-normal);
  font-size: var(--btn-font-size);
  border: none;
  padding: 1rem;
  border-radius: var(--button-border-radius);
  /* background-color: var(--btn-color); */
  cursor: pointer;

  a {
    text-decoration: none;
    color: var(--text-dark);
  }
}

.hidden {
  display: none;
}

.hide-element {
  display: none;
}

.genre-tag {
  display: inline-block;
  font-family: var(--font-normal);
  padding: 0.1rem 0.5rem;
  font-size: 1.2rem;
  text-wrap: nowrap;
  color: #333;
  border-radius: 100px;
  background-color: var(--tag-color);
  width: fit-content;
  height: fit-content;

  * {
    text-transform: uppercase;
    text-decoration: none;
    padding: 0 0.5em;
    color: var(--text-dark);
  }
}

.genre-tag:hover {
  background-color: var(--tag-color--hover);
}

.hover-effect-rise {
  transition: transform 300ms ease-in, box-shadow 300ms ease-in;
}

.hover-effect-rise:hover {
  transform: translateY(-5px);
  transform: translateY(-0.3em);
  box-shadow: 2rem 4rem 10rem rgba(0, 0, 0, 0.219);
}

* > *:has(.hover-effect-underline) {
  position: relative;
}

.hover-effect-underline:hover {
  margin-bottom: 0.2em;
}
.hover-effect-underline::before {
  content: '';
  position: absolute;
  bottom: -0.2em;
  left: 0;
  height: 0.2em;
  width: 0%;

  background-color: var(--action-color);
  transition: width 300ms ease-in;
}

.hover-effect-underline:hover::before {
  width: 100%;
}

/* Navigation Bar ****************************************/
.navbar {
  background-color: var(--body-color);
  color: var(--text-light);

  font-style: normal;
  padding: 1rem 0;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;

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

.logo {
  text-decoration: none;
  font-family: var(--font-styled);
  color: var(--text-light);
  font-size: 4.8rem;
  letter-spacing: 0.2rem;
}

.main-nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5em;

  .nav-list-item {
    a {
      text-decoration: none;
      font-size: var(--nav-font-size);
      color: var(--text-light);
      letter-spacing: 0.1rem;
    }
  }
}

/*******************************************
* Footer
*******************************************/
.footer {
  background-color: var(--secondary-color);
}

.footer-top {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: 1fr;

  div {
    margin-top: 2rem;
  }
  ul {
    display: flex;
    flex-direction: column;
    align-items: start;
    list-style: none;
    gap: 3px;
    font-size: var(--normal-font-size);
    li {
      padding-top: 0.3em;

      a {
        text-decoration: none;
        color: var(--text-light);
      }
    }
  }
}

.footer-top .footer-logo {
  grid-column: 1/3;
}

.footer-top .footer-icons {
  grid-area: 1 /3 /2 /4;
}
.footer-top .footer-nav {
  grid-area: 1 /4 /3 /5;
}
.footer-top .copyright-container {
  grid-column: 1/4;
}

.footer-top .footer-nav {
  display: flex;
  justify-content: flex-end;
}

.footer-top .logo {
  display: inline;
  color: var(--text-dark);
}

li a.goodreads-icon {
  img {
    width: 40px;
    height: 40px;
  }
}

.footer-top div.copyright-container {
  justify-content: flex-start;
}

.copyright {
  font-size: 1.2rem;
  line-height: 2;
  margin: 2rem 0 auto 0;
  color: var(--text-dark);
}

.copyright a {
  text-decoration: none;
  color: var(--text-light);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: normal;
}

.footer-bottom {
  display: flex;
  justify-content: center;
}

.footer-bottom--border {
  display: flex;
  border-bottom: 2px solid black;
  overflow: hidden;

  img {
    width: clamp(7.5rem, 5vw + 1rem, 15rem);
  }
}