:root {
  --background: hsla(220, 17%, 7%, 1);
  --banner-background: hsla(250, 6%, 20%, 1);
  --white-alpha-20: hsla(0, 0%, 100%, 0.2);
  --on-background: hsla(220, 100%, 95%, 1);
  --on-surface: hsla(250, 100%, 95%, 1);
  --on-surface-variant: hsla(250, 1%, 44%, 1);
  --primary: rgb(4, 146, 211);
  --primary-variant: hsla(349, 69%, 51%, 1);
  --rating-color: hsla(44, 100%, 49%, 1);
  --surface: hsla(250, 13%, 11%, 1);
  --text-color: hsla(250, 2%, 59%, 1);
  --white: hsla(0, 0%, 100%, 1);
  --banner-overlay: 90deg, hsl(220, 17%, 7%) 0%, hsla(220, 17%, 7%, 0.5) 100%;
  --bottom-overlay: 180deg, hsla(250, 13%, 11%, 0), hsla(250, 13%, 11%, 1);
  --ff-dm-sans: 'DM Sans', sans-serif;
  --fs-heading: 4rem;
  --fs-title-lg: 2.6rem;
  --fs-title: 2rem;
  --fs-body: 1.8rem;
  --fs-button: 1.5rem;
  --fs-label: 1.4rem;
  --weight-bold: 700;
  --shadow-1: 0 1px 4px hsla(0, 0%, 0%, 0.75);
  --shadow-2: 0 2px 4px hsla(202, 100%, 50%, 0.3);
  --radius-4: 4px;
  --radius-8: 8px;
  --radius-16: 16px;
  --radius-24: 24px;
  --radius-36: 36px;



  --transition-short: 250ms ease;
  --transition-long: 500ms ease;

}


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

li { list-style: none; }

a,
img,
span,
iframe,
button { display: block; }

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

img { height: auto; }

input,
button {
  background: none;
  border: none;
  font: inherit;
  color: inherit;
}

input { width: 100%; }

button {
  text-align: left;
  cursor: pointer;
}

html {
  font-family: var(--ff-dm-sans);
  font-size: 10px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--background);
  color: var(--on-background);
  font-size: var(--fs-body);
  line-height: 1.5;
}

:focus-visible { outline-color: var(--primary-variant); }

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-thumb {
  background-color: var(--banner-background);
  border-radius: var(--radius-8);
}





.search-wrapper::before,
.load-more::before {
  content: "";
  width: 20px;
  height: 20px;
  border: 3px solid var(--white);
  border-radius: var(--radius-24);
  border-inline-end-color: transparent;
  animation: loading 500ms linear infinite;
  display: none;
}

.search-wrapper::before {
  position: absolute;
  top: 14px;
  right: 12px;
}

.search-wrapper.searching::before { display: block; }

.load-more {
  background-color: var(--primary-variant);
  margin-inline: auto;
  margin-block: 36px 60px;
}

.load-more:is(:hover, :focus-visible) {
  --primary-variant: hsla(350, 67%, 39%, 1);
}

.load-more.loading::before { display: block; }

@keyframes loading {
  0% { transform: rotate(0); }
  100% { transform: rotate(1turn); }
}

.heading,
.title-large,
.title {
  font-weight: var(--weight-bold);
  letter-spacing: 0.5px;
}

.title { font-size: var(--fs-title); }

.heading {
  color: var(--white);
  font-size: var(--fs-heading);
  line-height: 1.2;
}

.title-large { font-size: var(--fs-title-lg); }

.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.meta-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: center;
  gap: 12px;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.btn {
  color: var(--white);
  font-size: var(--fs-button);
  font-weight: var(--weight-bold);
  max-width: max-content;
  display: flex;
  align-items: center;
  gap: 12px;
  padding-block: 12px;
  padding-inline: 20px 24px;
  border-radius: var(--radius-8);
  transition: var(--transition-short);
}

.card-badge {
  background-color: var(--banner-background);
  color: var(--white);
  font-size: var(--fs-label);
  font-weight: var(--weight-bold);
  padding-inline: 6px;
  border-radius: var(--radius-4);
}

.poster-box {
  background-image: url('../images/poster-bg-icon.png');
  aspect-ratio: 2 / 3;
}

.poster-box,
.video-card {
  background-repeat: no-repeat;
  background-size: 50px;
  background-position: center;
  background-color: var(--banner-background);
  border-radius: var(--radius-16);
  overflow: hidden;
}

.title-wrapper { margin-block-end: 24px; }

.slider-list {
  margin-inline: -20px;
  overflow-x: overlay;
  padding-block-end: 16px;
  margin-block-end: -16px;
}

.slider-list::-webkit-scrollbar-thumb { background-color: transparent; }

.slider-list:is(:hover, :focus-within)::-webkit-scrollbar-thumb {
  background-color: var(--banner-background);
}

.slider-list::-webkit-scrollbar-button { width: 20px; }

.slider-list .slider-inner {
  position: relative;
  display: flex;
  gap: 16px;
}

.slider-list .slider-inner::before,
.slider-list .slider-inner::after {
  content: "";
  min-width: 4px;
}

.separator {
  width: 4px;
  height: 4px;
  background-color: var(--white-alpha-20);
  border-radius: var(--radius-8);
}

.video-card {
  background-image: url('../images/video-bg-icon.png');
  aspect-ratio: 16 / 9;
  flex-shrink: 0;
  max-width: 500px;
  width: calc(100% - 40px);
}

/* .container::after, */
.search-modal::after {
  content: "";
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 150px;
  background-image: linear-gradient(var(--bottom-overlay));
  z-index: 1;
  pointer-events: none;
}





.header {
  position: relative;
  padding-block: 24px;
  padding-inline: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.header .logo { margin-inline-end: auto; }

.search-btn,
.menu-btn { padding: 12px; }

.search-btn {
  background-color: var(--banner-background);
  border-radius: var(--radius-8);
}

.search-btn img {
  opacity: 0.5;
  transition: var(--transition-short);
}

.search-btn:is(:hover, :focus-visible) img { opacity: 1; }

.menu-btn.active .menu,
.menu-btn .close { display: none; }

.menu-btn .menu,
.menu-btn.active .close { display: block; }

.search-box {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--background);
  padding: 24px 16px;
  align-items: center;
  gap: 8px;
  z-index: 1;
  display: none;
}

.search-box.active { display: flex; }

.search-wrapper {
  position: relative;
  flex-grow: 1;
}

.search-field {
  background-color: var(--banner-background);
  height: 48px;
  line-height: 48px;
  padding-inline: 44px 16px;
  outline: none;
  border-radius: var(--radius-8);
  transition: var(--transition-short);
}

.search-field::placeholder { color: var(--on-surface-variant); }

.search-field:hover { box-shadow: 0 0 0 2px var(--on-surface-variant); }

.search-field:focus {
  box-shadow: 0 0 0 2px var(--on-surface);
  padding-inline-start: 16px;
}

.search-wrapper .leading-icon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: 12px;
  opacity: 0.5;
  transition: var(--transition-short);
}

.search-wrapper:focus-within .leading-icon { opacity: 0; }


.sidebar {
  position: absolute;
  background-color: var(--background);
  top: 96px;
  bottom: 0;
  left: -340px;
  max-width: 340px;
  width: 100%;
  border-block-start: 1px solid var(--banner-background);
  overflow-y: overlay;
  z-index: 4;
  visibility: hidden;
  transition: var(--transition-long);
}

.sidebar.active {
  transform: translateX(340px);
  visibility: visible;
}

.sidebar-inner {
  display: grid;
  gap: 20px;
  padding-block: 36px;
}

.sidebar::-webkit-scrollbar-thumb { background-color: transparent; }

.sidebar:is(:hover, :focus-within)::-webkit-scrollbar-thumb {
  background-color: var(--banner-background);
}

.sidebar::-webkit-scrollbar-button { height: 16px; }

.sidebar-list,
.sidebar-footer { padding-inline: 36px; }

.sidebar-link {
  color: var(--on-surface-variant);
  transition: var(--transition-short);
}

.sidebar-link:is(:hover, :focus-visible) { color: var(--on-background); }

.sidebar-list {
  display: grid;
  gap: 8px;
}

.sidebar-list .title { margin-block-end: 8px; }

.sidebar-footer {
  border-block-start: 1px solid var(--banner-background);
  padding-block-start: 28px;
  margin-block-start: 16px;
}

.copyright {
  color: white;
  margin-block-end: 20px;
}

.copyright a { display: inline-block; }

.overlay {
  position: fixed;
  top: 96px;
  left: 0;
  bottom: 0;
  width: 100%;
  background: var(--background);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-short);
  z-index: 3;
}

.overlay.active {
  opacity: 0.5;
  pointer-events: all;
}





/*-----------------------------------*\
  #HOME PAGE
\*-----------------------------------*/

.container {
  position: relative;
  background-color: var(--surface);
  color: var(--on-surface);
  padding: 24px 20px 48px;
  height: calc(100vh - 96px);
  overflow-y: overlay;
  z-index: 1;
}



/**
 * BANNER
 */

.banner {
  position: relative;
  height: 700px;
  border-radius: var(--radius-24);
  overflow: hidden;
}

.banner-slider .slider-item {
  position: absolute;
  top: 0;
  left: 120%;
  width: 100%;
  height: 100%;
  background-color: var(--banner-background);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-long);
}

.banner-slider .slider-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--banner-overlay));
}

.banner-slider .active {
  left: 0;
  opacity: 1;
  visibility: visible;
}

.banner-content {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 206px;
  z-index: 1;
  color: var(--text-color);
}

.banner :is(.heading, .banner-text) {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.banner .heading {
  -webkit-line-clamp: 3;
  margin-block-end: 16px;
}

.banner .genre { margin-block: 12px; }

.banner-text {
  -webkit-line-clamp: 2;
  margin-block-end: 24px;
}

.banner .btn { background-color: var(--primary); }

.banner .btn:is(:hover, :focus-visible) { box-shadow: var(--shadow-2); }

.slider-control {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 0;
  border-radius: var(--radius-16) 0 0 var(--radius-16);
  user-select: none;
  padding: 4px 0 4px 4px;
  overflow-x: auto;
}

.slider-control::-webkit-scrollbar { display: none; }

.control-inner {
  display: flex;
  gap: 12px;
}

.control-inner::after {
  content: "";
  min-width: 12px;
}

.slider-control .slider-item {
  width: 100px;
  border-radius: var(--radius-8);
  flex-shrink: 0;
  filter: brightness(0.4);
}

.slider-control .active {
  filter: brightness(1);
  box-shadow: var(--shadow-1);
}



/**
 * MOVIE LIST
 */

.movie-list { padding-block-start: 32px; }

.movie-card {
  position: relative;
  width: 200px;
}

.movie-card .card-banner { width: 200px; }

.movie-card .title {
  width: 100%;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  margin-block: 8px 4px;
}

.movie-card .meta-list { justify-content: space-between; }

.movie-card .card-btn {
  position: absolute;
  inset: 0;
}





/*-----------------------------------*\
  #DETAIL PAGE
\*-----------------------------------*/

.backdrop-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 600px;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  z-index: -1;
}

.backdrop-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(0deg, hsla(250, 13%, 11%, 1), hsla(250, 13%, 11%, 0.9));
}

.movie-detail .movie-poster {
  max-width: 300px;
  width: 100%;
}

.movie-detail .heading { margin-block: 24px 12px; }

.movie-detail :is(.meta-list, .genre) { color: var(--text-color); }

.movie-detail .genre { margin-block: 12px 16px; }

.detail-list { margin-block: 24px 32px; }

.movie-detail .list-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-block-end: 12px;
}

.movie-detail .list-name {
  color: var(--text-color);
  min-width: 112px;
}





/*-----------------------------------*\
  #MOVIE LIST PAGE
\*-----------------------------------*/

.genre-list .title-wrapper { margin-block-end: 56px; }

.grid-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  column-gap: 16px;
  row-gap: 20px;
}

:is(.genre-list, .search-modal) :is(.movie-card, .card-banner) {
  width: 100%;
}





/*-----------------------------------*\
  #SEARCH MODAL
\*-----------------------------------*/

.search-modal {
  position: fixed;
  top: 96px;
  left: 0;
  bottom: 0;
  width: 100%;
  background-color: var(--surface);
  padding: 50px 24px;
  overflow-y: overlay;
  z-index: 4;
  display: none;
}

.search-modal.active { display: block; }

.search-modal .label {
  color: var(--primary-variant);
  font-weight: var(--weight-bold);
  margin-block-end: 8px;
}





/*-----------------------------------*\
  #MEDIA QUERIES
\*-----------------------------------*/


/**
 * responsive for larger than 575px screen
 */

@media (min-width: 575px) {

  /**
   * HOME PAGE
   */

  .banner-content {
    right: auto;
    max-width: 500px;
  }

  .slider-control { left: calc(100% - 400px); }



  /**
   * DETAIL PAGE
   */

  .detail-content { max-width: 750px; }

}





/**
 * responsive for larger than 768px screen
 */

@media (min-width: 768px) {

  /**
   * CUSTOM PROPERTY
   */

  :root {

    /* gradient color */
    --banner-overlay: 90deg, hsl(220, 17%, 7%) 0%, hsla(220, 17%, 7%, 0) 100%;

    /* font size */
    --fs-heading: 5.4rem;

  }



  /**
   * HOME PAGE
   */

  .container { padding-inline: 24px; }

  .slider-list { margin-inline: -24px; }

  .search-btn { display: none; }

  .search-box {
    all: unset;
    display: block;
    width: 360px;
  }

  .banner { height: 500px; }

  .banner-content {
    bottom: 50%;
    transform: translateY(50%);
    left: 50px;
  }



  /**
   * MOVIE DETAIL PAGE
   */

  .movie-detail {
    display: flex;
    align-items: flex-start;
    gap: 40px;
  }

  .movie-detail .detail-box { flex-grow: 1; }

  .movie-detail .movie-poster {
    flex-shrink: 0;
    position: sticky;
    top: 0;
  }

  .movie-detail .slider-list {
    margin-inline-start: 0;
    border-radius: var(--radius-16) 0 0 var(--radius-16);
  }

  .movie-detail .slider-inner::before { display: none; }

}





/**
 * responsive for larger than 1200px screen
 */

@media (min-width: 1200px) {

  /**
   * HOME PAGE
   */

  .header { padding: 28px 56px; }

  .logo img { width: 160px; }

  .menu-btn,
  .overlay { display: none; }

  main {
    display: grid;
    grid-template-columns: 250px 1fr;
  }

  .sidebar {
    position: static;
    visibility: visible;
    border-block-start: 0;
    height: calc(100vh - 104px);
  }

  .sidebar.active { transform: none; }

  .sidebar-list,
  .sidebar-footer { padding-inline: 56px; }

  .container {
    height: calc(100vh - 104px);
    border-top-left-radius: var(--radius-36);
  }

  .banner-content { left: 100px; }

  .search-modal {
    top: 104px;
    padding: 60px;
  }



  /**
   * MOVIE DETAIL PAGE
   */

  .backdrop-image { border-top-left-radius: var(--radius-36); }

}