:root {
  --color-text: #1a1a1a;
  --color-muted: #6b7280;
  --color-line: #e5e7eb;
  --color-surface: #ffffff;
  --color-accent: #1a1a1a;

  --radius: 8px;
  --space: 16px;
}

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

body {
  font-family: 'Inter', sans-serif;
  color: var(--color-text);
  background-color: var(--color-surface);
  line-height: 1.5;
}

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

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  inset-block-start: 8px;
  inset-inline-start: 8px;
  z-index: 100; /* lihat daftar lapisan di atas */

  padding: 8px 16px;
  border-radius: var(--radius);
  color: var(--color-surface);
  background-color: var(--color-accent);
  text-decoration: none;

  transform: translateY(-200%);
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.container {
  max-width: 960px;
  margin-inline: auto;
  padding-inline: 24px;
}

/* HEADER */
.site-header {
  border-block-end: 1px solid var(--color-line);
}

.header-content {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-block: 16px;
}

.brand img {
  height: 28px;
  width: auto;
}

.navlist {
  display: flex;
  gap: 24px;
  list-style: none;
}

.navlist a {
  font-size: 0.9rem;
  color: var(--color-muted);
  text-decoration: none;
}

.navlist a:hover {
  color: var(--color-text);
}

.drawer-button {
  display: none;
  margin-inline-start: auto;
  padding: 4px 8px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  font-size: 1.1rem;
  background-color: transparent;
  cursor: pointer;
}

/* INTRO */
.intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;

  padding-block: 48px 24px;
}

.intro__image {
  flex-shrink: 0;
  height: clamp(72px, 14vw, 112px);
  width: auto;
}

.intro h1 {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.intro p {
  margin-block-start: 8px;
  color: var(--color-muted);
}

/* TOOLBAR & FILTER */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space);
  padding-block: 16px 32px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-button {
  min-height: 36px;
  padding: 6px 14px;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  font-family: inherit;
  font-size: 0.85rem;
  color: var(--color-muted);
  background-color: transparent;
  cursor: pointer;
}

/* Tanpa :not(), hover menimpa aturan tombol aktif karena spesifisitasnya lebih tinggi. */
.filter-button:not(.filter-button--active):hover {
  color: var(--color-text);
  border-color: var(--color-text);
  background-color: #f3f4f6;
}

.filter-button--active {
  color: var(--color-surface);
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

/* Tombol aktif memberi umpan balik hover ke arah berbeda */
.filter-button--active:hover {
  background-color: #404040;
  border-color: #404040;
}

.result-info {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* MUSIC LIST */
.music-list {
  display: grid;

  /* auto-fill menjaga jumlah kolom tetap sama; auto-fit akan membuat kartu melar. */
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 32px 24px;

  /* Tanpa ini, tinggi kartu ikut kartu tertinggi dan berubah tiap filter diganti. */
  align-items: start;
}

/* Stacking context sendiri, agar kontrol <audio> tidak menimpa lapisan di atasnya. */
.music-item {
  position: relative;
  z-index: 1;
  isolation: isolate;
}

.music-item__art {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius);
  background-color: var(--color-line);
}

.music-item__body {
  padding-block-start: 12px;
}

/* Judul dibatasi satu baris agar tinggi kartu tidak berubah-ubah */
.music-item__title {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.4;
  min-block-size: 1.4em;

  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.music-item__author {
  margin-block-start: 2px;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.music-item__audio {
  width: 100%;
  height: 36px;
  margin-block-start: 12px;
}

/* Panjang kredit berbeda tiap lagu, dibatasi dua baris agar tinggi kartu seragam. */
.music-item__signature {
  margin-block-start: 8px;
  font-size: 0.7rem;
  line-height: 1.4;
  color: var(--color-muted);

  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
  min-block-size: 2.8em; /* 2 baris x line-height 1.4 */
}

.empty-state {
  padding-block: 48px;
  text-align: center;
  color: var(--color-muted);
}

/* NOW PLAYING */
.now-playing {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;

  z-index: 50; /* lihat daftar lapisan di atas */
  isolation: isolate;

  background-color: var(--color-surface);
  border-block-start: 1px solid var(--color-line);
  box-shadow: 0 -1px 0 var(--color-line);
}

.now-playing__content {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-block: 12px;
}

.now-playing__toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;

  margin-inline-start: auto;
  min-height: 36px;
  padding: 6px 16px;

  border: 1px solid var(--color-line);
  border-radius: 999px;

  font-family: inherit;
  font-size: 0.85rem;
  color: var(--color-text);
  background-color: transparent;
  cursor: pointer;
}

.now-playing__toggle:hover {
  border-color: var(--color-text);
  background-color: #f3f4f6;
}

.now-playing__art {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: 6px;
  background-color: var(--color-line);
}

.now-playing__meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.now-playing__label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
}

.now-playing__title {
  font-size: 0.95rem;
  font-weight: 500;
}

.now-playing__author {
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* Memberi ruang agar konten terakhir tidak tertutup Now Playing bar */
body.has-now-playing {
  padding-block-end: 88px;
}

/* FOOTER */
.site-footer {
  margin-block-start: 64px;
  padding-block: 24px;
  border-block-start: 1px solid var(--color-line);
  font-size: 0.85rem;
  color: var(--color-muted);
  text-align: center;
}

@media screen and (width <= 700px) {
  .drawer-button {
    display: inline-block;
  }

  .navlist {
    position: fixed;
    inset-block: 0 auto;
    inset-inline-start: 0;

    flex-direction: column;
    gap: 0;
    width: 220px;
    min-height: 100vh;
    padding: 24px;

    background-color: var(--color-surface);
    border-inline-end: 1px solid var(--color-line);

    /* lihat daftar lapisan di atas */
    z-index: 60;

    transform: translateX(-100%);
    transition: transform 200ms ease-in-out, visibility 200ms;

    /* Mengeluarkan link dari urutan Tab saat drawer tertutup. */
    visibility: hidden;
  }

  .navlist a {
    display: block;
    padding-block: 12px;
  }

  .navlist.open {
    transform: translateX(0);
    visibility: visible;
  }

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

@media (prefers-reduced-motion: reduce) {
  .navlist {
    transition: none;
  }
}