:root {
  color-scheme: dark;
  --bg: #030712;
  --panel: #0f172a;
  --panel-soft: #111827;
  --muted: #94a3b8;
  --text: #f8fafc;
  --red: #dc2626;
  --red-soft: #ef4444;
  --orange: #f97316;
  --line: rgba(148, 163, 184, 0.18);
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(220, 38, 38, 0.18), transparent 28rem),
    radial-gradient(circle at 80% 10%, rgba(249, 115, 22, 0.13), transparent 24rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

body::selection {
  background: rgba(239, 68, 68, 0.36);
}

img {
  display: block;
  max-width: 100%;
}

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

button,
input,
select {
  font: inherit;
}

main {
  min-height: 70vh;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 80;
  background: rgba(3, 7, 18, 0.84);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  backdrop-filter: blur(18px);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(3, 7, 18, 0.96);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.35);
}

.site-header-inner {
  width: min(1180px, calc(100% - 32px));
  height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-logo,
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.logo-mark,
.footer-logo span {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--red), var(--orange));
  color: white;
  box-shadow: 0 12px 30px rgba(220, 38, 38, 0.28);
}

.logo-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.08;
}

.logo-copy strong {
  font-size: 21px;
  background: linear-gradient(90deg, #ef4444, #fb923c);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.logo-copy small {
  color: var(--muted);
  font-size: 12px;
  margin-top: 4px;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.nav-link,
.mobile-nav-link {
  color: #cbd5e1;
  border-radius: 12px;
  font-weight: 700;
  transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.nav-link {
  padding: 10px 14px;
}

.nav-link:hover,
.nav-link.active,
.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: #fff;
  background: rgba(220, 38, 38, 0.96);
}

.header-search {
  display: flex;
  align-items: center;
  width: 245px;
  padding: 4px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.86);
  border: 1px solid var(--line);
}

.header-search input,
.mobile-search input,
.search-panel input,
.filter-search input {
  width: 100%;
  border: 0;
  outline: none;
  color: var(--text);
  background: transparent;
}

.header-search input {
  padding: 8px 12px;
}

.header-search button,
.mobile-search button,
.search-panel button {
  border: 0;
  border-radius: 999px;
  color: white;
  background: linear-gradient(135deg, var(--red), var(--orange));
  padding: 8px 14px;
  cursor: pointer;
  white-space: nowrap;
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.7);
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: #fff;
  border-radius: 99px;
}

.mobile-nav {
  display: none;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto 14px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.98);
}

.mobile-nav.is-open {
  display: grid;
  gap: 10px;
}

.mobile-nav-link {
  padding: 12px 14px;
}

.mobile-search {
  display: flex;
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.mobile-category-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.quick-category {
  padding: 8px 10px;
  border-radius: 999px;
  color: #fecaca;
  background: rgba(220, 38, 38, 0.16);
}

.hero-carousel {
  position: relative;
  min-height: 660px;
  padding-top: 72px;
  overflow: hidden;
  background: linear-gradient(180deg, #111827, #020617);
}

.hero-slide {
  position: absolute;
  inset: 72px 0 0;
  display: grid;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.hero-slide.is-active {
  opacity: 1;
  visibility: visible;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.44;
  filter: saturate(1.12) contrast(1.04);
  transform: scale(1.04);
}

.hero-bg::before,
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
}

.hero-bg::before {
  background: linear-gradient(90deg, rgba(2, 6, 23, 0.96), rgba(2, 6, 23, 0.68), rgba(2, 6, 23, 0.18));
}

.hero-bg::after {
  background: linear-gradient(0deg, #030712 0%, rgba(3, 7, 18, 0.15) 42%, rgba(3, 7, 18, 0.5) 100%);
}

.hero-inner,
.page-shell,
.footer-grid,
.footer-bottom {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.6fr);
  gap: 46px;
  align-items: center;
  padding: 70px 0 96px;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow,
.section-kicker,
.page-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: #fecaca;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-copy h1,
.hero-copy h2,
.page-hero h1,
.detail-title h1 {
  margin: 0;
  color: white;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.hero-copy h1,
.hero-copy h2 {
  font-size: clamp(42px, 7vw, 78px);
}

.hero-copy p {
  margin: 18px 0 0;
  max-width: 660px;
  color: #d1d5db;
  font-size: clamp(17px, 2vw, 23px);
  line-height: 1.72;
}

.hero-meta,
.detail-meta,
.card-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.hero-meta {
  margin: 24px 0 0;
}

.hero-meta span,
.detail-meta span,
.tag-pill,
.filter-chip {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #e5e7eb;
  background: rgba(15, 23, 42, 0.68);
}

.hero-meta span,
.detail-meta span {
  padding: 8px 12px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.btn-primary,
.btn-secondary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-primary {
  padding: 14px 22px;
  color: white;
  background: linear-gradient(135deg, var(--red), var(--orange));
  box-shadow: 0 20px 38px rgba(220, 38, 38, 0.28);
}

.btn-secondary,
.btn-ghost {
  padding: 13px 20px;
  color: white;
  background: rgba(15, 23, 42, 0.78);
  border: 1px solid var(--line);
}

.btn-primary:hover,
.btn-secondary:hover,
.btn-ghost:hover {
  transform: translateY(-2px);
}

.hero-card {
  border: 1px solid rgba(248, 250, 252, 0.14);
  border-radius: 28px;
  padding: 18px;
  background: rgba(15, 23, 42, 0.66);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-card img {
  width: 100%;
  aspect-ratio: 2 / 3;
  border-radius: 20px;
  object-fit: cover;
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.22), rgba(249, 115, 22, 0.12));
}

.hero-card h3 {
  margin: 16px 0 8px;
  font-size: 24px;
}

.hero-card p {
  margin: 0;
  color: #cbd5e1;
  line-height: 1.7;
}

.hero-dots {
  position: absolute;
  z-index: 4;
  left: 50%;
  bottom: 28px;
  display: flex;
  gap: 10px;
  transform: translateX(-50%);
}

.hero-dot {
  width: 38px;
  height: 5px;
  border: 0;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
}

.hero-dot.is-active {
  background: linear-gradient(90deg, var(--red), var(--orange));
}

.page-shell {
  padding: 112px 0 72px;
}

.page-hero {
  margin-bottom: 38px;
  padding: 38px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background:
    linear-gradient(135deg, rgba(220, 38, 38, 0.16), rgba(15, 23, 42, 0.8)),
    var(--panel);
  box-shadow: var(--shadow);
}

.page-hero h1 {
  font-size: clamp(34px, 5vw, 56px);
}

.page-hero p {
  max-width: 780px;
  margin: 16px 0 0;
  color: #cbd5e1;
  line-height: 1.8;
  font-size: 18px;
}

.content-section {
  margin: 54px auto 0;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(26px, 3.2vw, 36px);
  letter-spacing: -0.02em;
}

.section-more {
  color: #f87171;
  font-weight: 800;
  white-space: nowrap;
}

.movie-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 18px;
}

.movie-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.72);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.22);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.movie-card:hover {
  transform: translateY(-6px);
  border-color: rgba(239, 68, 68, 0.7);
  box-shadow: 0 24px 52px rgba(0, 0, 0, 0.38);
}

.poster-wrap {
  position: relative;
  display: block;
  aspect-ratio: 2 / 3;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 20%, rgba(239, 68, 68, 0.24), transparent 18rem),
    #111827;
}

.poster-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.movie-card:hover img {
  transform: scale(1.06);
}

.card-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.78), transparent 46%);
  opacity: 0;
  transition: opacity 0.22s ease;
}

.movie-card:hover .card-shade {
  opacity: 1;
}

.play-chip,
.type-chip,
.rank-badge {
  position: absolute;
  z-index: 2;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.play-chip {
  left: 50%;
  bottom: 18px;
  padding: 8px 12px;
  color: #fff;
  background: rgba(220, 38, 38, 0.92);
  opacity: 0;
  transform: translate(-50%, 10px);
  transition: opacity 0.22s ease, transform 0.22s ease;
  white-space: nowrap;
}

.movie-card:hover .play-chip {
  opacity: 1;
  transform: translate(-50%, 0);
}

.type-chip {
  top: 10px;
  right: 10px;
  padding: 5px 9px;
  color: #fff;
  background: rgba(220, 38, 38, 0.94);
}

.rank-badge {
  top: 10px;
  left: 10px;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: linear-gradient(135deg, var(--red), var(--orange));
}

.card-body {
  display: grid;
  gap: 6px;
  padding: 13px;
}

.card-body strong {
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  min-height: 2.7em;
  color: white;
  line-height: 1.36;
}

.card-body small,
.card-body p {
  color: var(--muted);
  line-height: 1.55;
}

.card-body p {
  margin: 2px 0 0;
  font-size: 13px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.category-tile {
  position: relative;
  min-height: 190px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.98), rgba(127, 29, 29, 0.56));
  box-shadow: 0 22px 42px rgba(0, 0, 0, 0.23);
}

.category-tile::after {
  content: "";
  position: absolute;
  right: -46px;
  bottom: -46px;
  width: 150px;
  height: 150px;
  border-radius: 999px;
  background: rgba(249, 115, 22, 0.22);
}

.category-tile h2,
.category-tile h3 {
  position: relative;
  z-index: 1;
  margin: 0 0 10px;
  font-size: 24px;
}

.category-tile p {
  position: relative;
  z-index: 1;
  margin: 0 0 18px;
  color: #cbd5e1;
  line-height: 1.68;
}

.category-tile span {
  position: relative;
  z-index: 1;
  color: #fecaca;
  font-weight: 800;
}

.filter-bar,
.search-panel {
  display: grid;
  gap: 14px;
  margin: 28px 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(15, 23, 42, 0.72);
}

.filter-search,
.search-panel form {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(2, 6, 23, 0.58);
}

.filter-chips {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-chip {
  padding: 8px 12px;
  cursor: pointer;
}

.filter-chip.is-active,
.filter-chip:hover {
  color: #fff;
  border-color: rgba(239, 68, 68, 0.65);
  background: rgba(220, 38, 38, 0.86);
}

.empty-state {
  display: none;
  margin-top: 22px;
  padding: 28px;
  text-align: center;
  color: #cbd5e1;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(15, 23, 42, 0.7);
}

.empty-state.is-visible {
  display: block;
}

.ranking-list {
  display: grid;
  gap: 14px;
}

.ranking-row {
  display: grid;
  grid-template-columns: 64px 92px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.78);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.ranking-row:hover {
  transform: translateX(4px);
  border-color: rgba(239, 68, 68, 0.6);
}

.ranking-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  color: #fff;
  font-size: 20px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--red), var(--orange));
}

.ranking-row img {
  width: 92px;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border-radius: 12px;
  background: #111827;
}

.ranking-copy h2,
.ranking-copy h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.ranking-copy p {
  margin: 0;
  color: #cbd5e1;
  line-height: 1.65;
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 28px;
}

.detail-main,
.detail-side,
.detail-panel {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(15, 23, 42, 0.74);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.24);
}

.detail-main {
  overflow: hidden;
}

.player-shell {
  position: relative;
  overflow: hidden;
  background: #000;
  aspect-ratio: 16 / 9;
}

.player-shell video {
  width: 100%;
  height: 100%;
  display: block;
  background: #000;
}

.player-cover-button {
  position: absolute;
  inset: 0;
  z-index: 4;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  border: 0;
  color: #fff;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.78), rgba(0, 0, 0, 0.32));
  cursor: pointer;
}

.player-shell.is-playing .player-cover-button {
  opacity: 0;
  pointer-events: none;
}

.play-orb {
  width: 82px;
  height: 82px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--red), var(--orange));
  font-size: 32px;
  box-shadow: 0 18px 42px rgba(220, 38, 38, 0.38);
}

.player-cover-button strong {
  font-size: 22px;
}

.detail-content {
  padding: 26px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  color: #94a3b8;
}

.breadcrumb a:hover {
  color: #f87171;
}

.detail-title h1 {
  font-size: clamp(32px, 4.6vw, 54px);
}

.detail-meta {
  margin: 18px 0 24px;
}

.detail-panel {
  margin-top: 22px;
  padding: 24px;
}

.detail-panel h2 {
  margin: 0 0 14px;
  font-size: 22px;
}

.detail-panel p {
  margin: 0;
  color: #d1d5db;
  line-height: 1.86;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-pill {
  padding: 8px 12px;
}

.detail-side {
  align-self: start;
  position: sticky;
  top: 94px;
  padding: 18px;
}

.side-poster {
  width: 100%;
  border-radius: 18px;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  background: #111827;
}

.side-title {
  margin: 16px 0 10px;
  font-size: 22px;
}

.side-desc {
  color: #cbd5e1;
  line-height: 1.72;
}

.related-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.related-item {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 9px;
  border-radius: 14px;
  background: rgba(2, 6, 23, 0.52);
  border: 1px solid transparent;
}

.related-item:hover {
  border-color: rgba(239, 68, 68, 0.58);
}

.related-item img {
  width: 54px;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border-radius: 9px;
  background: #111827;
}

.related-item strong {
  display: block;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.related-item small {
  color: #94a3b8;
}

.search-results-note {
  margin: 16px 0 0;
  color: #cbd5e1;
}

.site-footer {
  margin-top: 64px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.7), rgba(3, 7, 18, 0.98));
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 34px;
  padding: 52px 0 34px;
}

.footer-logo {
  margin-bottom: 14px;
  font-size: 20px;
}

.site-footer h2 {
  margin: 0 0 14px;
  font-size: 18px;
}

.site-footer p,
.site-footer a,
.footer-bottom {
  color: #94a3b8;
  line-height: 1.75;
}

.site-footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer li + li {
  margin-top: 8px;
}

.site-footer a:hover {
  color: #f87171;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 0 26px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

@media (max-width: 1100px) {
  .movie-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .category-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .detail-layout {
    grid-template-columns: 1fr;
  }

  .detail-side {
    position: static;
  }
}

@media (max-width: 900px) {
  .desktop-nav,
  .header-search {
    display: none;
  }

  .menu-button {
    display: inline-block;
    margin-left: auto;
  }

  .site-header-inner {
    height: 66px;
  }

  .hero-carousel {
    min-height: 760px;
    padding-top: 66px;
  }

  .hero-slide {
    top: 66px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 26px;
    padding-top: 44px;
  }

  .hero-card {
    max-width: 380px;
  }

  .movie-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .logo-copy small {
    display: none;
  }

  .site-header-inner,
  .hero-inner,
  .page-shell,
  .footer-grid,
  .footer-bottom {
    width: min(100% - 24px, 1180px);
  }

  .hero-carousel {
    min-height: 720px;
  }

  .hero-copy h1,
  .hero-copy h2 {
    font-size: 40px;
  }

  .hero-card {
    display: none;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn-primary,
  .btn-secondary,
  .btn-ghost {
    width: 100%;
  }

  .page-shell {
    padding-top: 92px;
  }

  .page-hero {
    padding: 24px;
    border-radius: 22px;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .movie-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .category-grid {
    grid-template-columns: 1fr;
  }

  .ranking-row {
    grid-template-columns: 46px 70px minmax(0, 1fr);
  }

  .ranking-row .btn-ghost {
    grid-column: 1 / -1;
    width: 100%;
  }

  .ranking-number {
    width: 42px;
    height: 42px;
  }

  .ranking-row img {
    width: 70px;
  }

  .detail-content,
  .detail-panel {
    padding: 18px;
  }

  .footer-grid,
  .footer-bottom {
    grid-template-columns: 1fr;
    flex-direction: column;
  }
}