:root {
  color-scheme: dark;
  --page: #06090d;
  --surface: #0d141b;
  --text: #f7fafc;
  --muted: #a8b4bf;
  --soft: #71808e;
  --spotify: #1ed760;
  --side: clamp(1rem, 2.5vw, 3rem);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { background: var(--page); scroll-behavior: smooth; }

body {
  min-width: 18rem;
  margin: 0;
  color: var(--text);
  background: var(--page);
  line-height: 1.5;
}

button, a { font: inherit; }
a { color: inherit; }
[hidden] { display: none !important; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  color: #06100a;
  background: var(--spotify);
  border-radius: 2px;
  font-weight: 800;
  transform: translateY(-180%);
}

.skip-link:focus { transform: translateY(0); }

.ambient { position: fixed; z-index: 0; inset: 0; overflow: hidden; pointer-events: none; }

.ambient::before,
.ambient::after {
  content: "";
  position: absolute;
  width: 150%;
  height: 150%;
  top: -25%;
  left: -25%;
  will-change: transform;
}

.ambient::before {
  opacity: 0.17;
  background:
    repeating-linear-gradient(24deg, transparent 0 10rem, rgba(255, 111, 145, 0.72) 10.04rem 10.1rem, transparent 10.16rem 20rem),
    repeating-linear-gradient(156deg, transparent 0 13rem, rgba(198, 238, 78, 0.55) 13.04rem 13.1rem, transparent 13.16rem 26rem);
  animation: neon-crossflow 58s linear infinite alternate;
}

.ambient::after {
  opacity: 0.14;
  background:
    repeating-linear-gradient(72deg, transparent 0 12rem, rgba(155, 140, 255, 0.7) 12.04rem 12.1rem, transparent 12.16rem 24rem),
    repeating-linear-gradient(108deg, transparent 0 17rem, rgba(255, 155, 62, 0.6) 17.04rem 17.1rem, transparent 17.16rem 34rem);
  animation: neon-drift 66s linear infinite alternate;
}

.ambient-lights, .ambient-lines {
  position: absolute;
  width: 130%;
  height: 130%;
  top: -15%;
  left: -15%;
  will-change: transform;
}

.ambient-lights {
  opacity: 0.2;
  background:
    radial-gradient(circle at 15% 25%, rgba(30, 215, 96, 0.17), transparent 23%),
    radial-gradient(circle at 75% 12%, rgba(85, 169, 255, 0.13), transparent 24%),
    radial-gradient(circle at 87% 78%, rgba(222, 116, 238, 0.12), transparent 25%),
    radial-gradient(circle at 33% 90%, rgba(255, 155, 62, 0.1), transparent 26%);
  animation: drift-lights 34s ease-in-out infinite alternate;
}

.ambient-lines {
  opacity: 0.18;
  background:
    repeating-linear-gradient(118deg, transparent 0 7.5rem, rgba(30, 215, 96, 0.72) 7.54rem 7.6rem, transparent 7.66rem 15rem),
    repeating-linear-gradient(62deg, transparent 0 11rem, rgba(85, 169, 255, 0.7) 11.04rem 11.1rem, transparent 11.16rem 22rem);
  animation: drift-lines 48s linear infinite alternate;
}

@keyframes drift-lights { to { transform: translate3d(5%, -3%, 0) scale(1.04); } }
@keyframes drift-lines { to { transform: translate3d(-5%, 4%, 0); } }
@keyframes neon-crossflow { to { transform: translate3d(4%, 5%, 0) rotate(0.5deg); } }
@keyframes neon-drift { to { transform: translate3d(-4%, -5%, 0) rotate(-0.5deg); } }

.topbar {
  position: sticky;
  z-index: 30;
  top: 0;
  min-height: 4.35rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem var(--side);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(6, 9, 13, 0.96);
}

.brand {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  text-decoration: none;
  font-size: clamp(0.95rem, 1.3vw, 1.18rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-logo-frame {
  width: 2.25rem;
  height: 2.25rem;
  flex: 0 0 auto;
  overflow: hidden;
  border-radius: 50%;
}

.brand-logo {
  width: 120%;
  height: 120%;
  display: block;
  max-width: none;
  object-fit: cover;
  transform: translate(-8.35%, -8%);
}

.topbar-meta {
  flex: 0 0 auto;
  color: #d9e1e7;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page { position: relative; z-index: 1; }

.filter-panel {
  padding: clamp(1.1rem, 2.5vw, 2rem) var(--side);
  border-bottom: 1px solid rgba(255, 255, 255, 0.055);
}

.filters {
  max-width: 100rem;
  display: grid;
  justify-items: center;
  gap: 0.7rem;
  margin-inline: auto;
}

.filter-row,
.filter-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
}

.filter-row { align-items: center; }

.filter-group + .filter-group { margin-left: 0; padding-left: 0; border-left: 0; }

.filter-row:first-child .filter-group:first-child {
  margin-right: 0.55rem;
  padding-right: 1.1rem;
  border-right: 1px solid rgba(255, 255, 255, 0.13);
}

.filter {
  min-height: 2.75rem;
  padding: 0.66rem 1rem;
  border: 1px solid var(--filter-color, #607080);
  border-radius: 2px;
  color: #dbe4eb;
  background: rgba(13, 20, 27, 0.78);
  cursor: pointer;
  font-size: 0.84rem;
  font-weight: 820;
  letter-spacing: 0.065em;
  text-transform: uppercase;
  transition: color 140ms ease, background 140ms ease, transform 140ms ease;
}

.filter:hover { color: #fff; transform: translateY(-1px); }
.filter[aria-pressed="true"] { color: #07100b; background: var(--filter-color, var(--spotify)); }

.filter:focus-visible, .playlist-card:focus-visible, .all-card:focus-visible, .brand:focus-visible, .footer a:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 3px;
}

.playlist-zone {
  width: calc(100% - (2 * var(--side)));
  margin-inline: auto;
  padding-block: clamp(1.5rem, 3vw, 3rem) clamp(4rem, 7vw, 7rem);
}

.grid-stage { position: relative; isolation: isolate; }

.card-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 1.45vw, 1.5rem);
}

.playlist-card {
  --accent: #758493;
  min-width: 0;
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  align-items: start;
  gap: 0.85rem;
  padding: 0.68rem;
  color: inherit;
  background: linear-gradient(145deg, rgba(13, 20, 27, 0.985), rgba(9, 15, 21, 0.985)) padding-box, var(--card-border) border-box;
  border: 1px solid transparent;
  border-radius: 0.75rem;
  box-shadow: 0 0.9rem 2.4rem rgba(0, 0, 0, 0.2);
  text-decoration: none;
  transition: transform 170ms ease, box-shadow 170ms ease;
}

.playlist-card:hover { box-shadow: 0 1rem 2.8rem rgba(0, 0, 0, 0.34); transform: translateY(-3px); }

.cover {
  width: 8rem;
  height: 8rem;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 0.45rem;
  background: #17212a;
}

.card-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-self: stretch;
  padding: 0.1rem 0.2rem 0.08rem 0;
}

.card-topline { display: block; }

.card-title {
  margin: 0;
  color: #fff;
  font-size: 0.96rem;
  line-height: 1.24;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.22rem;
  margin-top: 0.28rem;
  color: var(--soft);
  font-size: 0.75rem;
  font-weight: 780;
  letter-spacing: 0.04em;
}

.meta-separator { color: var(--soft); }
.card-categories { color: var(--accent); text-transform: uppercase; }

.genres { margin-top: 0.46rem; color: #e7edf2; font-size: 0.75rem; font-weight: 720; line-height: 1.32; }

.card-description {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.75rem;
  font-style: italic;
  line-height: 1.32;
}

.empty-state { margin: 2rem 0 0; padding: 3rem 1rem; color: var(--muted); border: 1px solid rgba(255, 255, 255, 0.08); text-align: center; }
.all-card-wrap { display: flex; justify-content: center; margin-top: clamp(3rem, 6vw, 6rem); }

.all-card {
  width: min(100%, 17rem);
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr);
  align-items: center;
  gap: 0.65rem;
  padding: 0.48rem;
  color: inherit;
  background: rgba(13, 20, 27, 0.96);
  border: 1px solid var(--spotify);
  border-radius: 0.65rem;
  text-decoration: none;
  box-shadow: 0 0.8rem 2rem rgba(0, 0, 0, 0.2);
  transition: transform 170ms ease;
}

.all-card:hover { transform: translateY(-2px); }
.all-card img { width: 4rem; height: 4rem; aspect-ratio: 1 / 1; object-fit: cover; border-radius: 0.35rem; }
.all-card h2 { margin: 0; font-size: 0.9rem; letter-spacing: 0.08em; }
.all-card span { display: block; margin-top: 0.18rem; color: var(--muted); font-size: 0.7rem; }

.footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem var(--side) 2rem;
  color: var(--soft);
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-size: 0.78rem;
}

.footer a { color: #d8e1e7; text-decoration: none; }

@media (max-width: 70rem) {
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 46rem) {
  .card-grid { grid-template-columns: 1fr; }
}

@media (max-width: 42rem) {
  .topbar { min-height: 4rem; }
  .brand-logo-frame { width: 2rem; height: 2rem; }
  .filter-panel { padding-block: 0.9rem; }
  .filters { gap: 0.6rem; }
  .filter-row, .filter-group { gap: 0.42rem; }
  .filter { min-height: 2.45rem; padding: 0.52rem 0.72rem; font-size: 0.76rem; }
  .playlist-card { grid-template-columns: 7rem minmax(0, 1fr); gap: 0.78rem; }
  .cover { width: 7rem; height: 7rem; }
  .footer { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 26rem) {
  .brand { font-size: 0.86rem; }
  .topbar-meta { font-size: 0.7rem; }
  .playlist-card { grid-template-columns: 5.5rem minmax(0, 1fr); }
  .cover { width: 5.5rem; height: 5.5rem; }
  .card-title { font-size: 0.9rem; }
  .card-meta, .genres, .card-description { font-size: 0.72rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ambient-lights, .ambient-lines { animation: none; }
  .ambient::before, .ambient::after { animation: none; }
  .filter, .playlist-card, .all-card { transition: none; }
}