/* Norius Music — Material You inspired dark theme.
   All colour tokens are rewritten at runtime by js/color.js from the cover art. */

:root {
  --primary: #7ad6bd;
  --on-primary: #00382e;
  --primary-container: #005143;
  --on-primary-container: #9bf2d9;
  --secondary: #b3ccc4;
  --on-secondary: #1e352f;

  --surface: #0e1113;
  --surface-container-lowest: #090c0d;
  --surface-container-low: #14181a;
  --surface-container: #181d1f;
  --surface-container-high: #222829;
  --surface-container-highest: #2c3335;

  --on-surface: #e2e3e1;
  --on-surface-variant: #a6b1ad;
  --outline: #55605d;
  --outline-variant: #2d3634;
  --error: #ffb4ab;

  --r-xs: 8px;
  --r-sm: 12px;
  --r-md: 16px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-full: 999px;

  --sidebar-w: 264px;
  --np-w: 320px;
  --tp-h: 88px;

  --ease: cubic-bezier(0.2, 0, 0, 1);
  --dur: 220ms;

  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
}

body {
  background: var(--surface);
  color: var(--on-surface);
  font: 15px/1.45 "Inter", "Segoe UI", Roboto, system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

button, input, select {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0;
}

ul { list-style: none; margin: 0; padding: 0; }
img { display: block; }

/* The hidden attribute must always beat component display rules, otherwise
   overlays like .modal-host stay in the layer and swallow every click. */
[hidden] { display: none !important; }

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ============================ layout ============================ */

.app {
  height: 100%;
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--np-w);
  grid-template-rows: minmax(0, 1fr) var(--tp-h);
  grid-template-areas:
    "sidebar main np"
    "transport transport transport";
  gap: 8px;
  padding: 8px;
  transition: background var(--dur) var(--ease);
}

.sidebar {
  grid-area: sidebar;
  background: var(--surface-container-low);
  border-radius: var(--r-lg);
  padding: 16px 12px 12px;
  display: flex;
  flex-direction: column;
  min-height: 0;
  transition: background var(--dur) var(--ease);
}

.main {
  grid-area: main;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.np {
  grid-area: np;
  background: var(--surface-container-low);
  border-radius: var(--r-lg);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  min-height: 0;
  transition: background var(--dur) var(--ease);
}

.transport {
  grid-area: transport;
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(320px, 2fr) minmax(180px, 1fr);
  align-items: center;
  gap: 16px;
  padding: 0 16px;
  background: var(--surface-container);
  border-radius: var(--r-lg);
  transition: background var(--dur) var(--ease);
}

/* ============================ sidebar ============================ */

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 10px 18px;
}

.brand__mark svg {
  width: 26px;
  height: 26px;
  fill: var(--primary);
  display: block;
  transition: fill var(--dur) var(--ease);
}

.brand__name {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav__item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 16px;
  border-radius: var(--r-full);
  color: var(--on-surface-variant);
  font-weight: 500;
  text-align: left;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.nav__item svg {
  width: 21px;
  height: 21px;
  fill: currentColor;
  flex: none;
}

.nav__item:hover { background: var(--surface-container-high); color: var(--on-surface); }

.nav__item.is-active {
  background: var(--primary-container);
  color: var(--on-primary-container);
  font-weight: 600;
}

.sidebar__divider {
  height: 1px;
  background: var(--outline-variant);
  margin: 16px 12px;
  transition: background var(--dur) var(--ease);
}

.sidebar__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px 0 16px;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}

.pl-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-right: 2px;
}

.pl-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 7px 10px;
  border-radius: var(--r-sm);
  text-align: left;
  color: var(--on-surface-variant);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.pl-item:hover { background: var(--surface-container-high); color: var(--on-surface); }

.pl-item__cover {
  width: 38px;
  height: 38px;
  border-radius: var(--r-xs);
  object-fit: cover;
  background: var(--surface-container-high);
  flex: none;
}

.pl-item__name {
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar__foot {
  padding-top: 10px;
  margin-top: 6px;
  border-top: 1px solid var(--outline-variant);
}

.user-chip {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--r-full);
  transition: background var(--dur) var(--ease);
}

.user-chip:hover { background: var(--surface-container-high); }

.user-chip__av {
  width: 32px;
  height: 32px;
  border-radius: var(--r-full);
  background: var(--primary);
  color: var(--on-primary);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 14px;
  flex: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.user-chip__name {
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============================ topbar ============================ */

.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 8px 0;
  flex: none;
}

/* The drawer trigger only exists on narrow screens, where the sidebar slides in. */
@media (min-width: 901px) {
  .topbar .menu-btn { display: none !important; }
}

.scrim {
  position: fixed;
  inset: 0;
  z-index: 55;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(2px);
}

.search {
  position: relative;
  flex: 1;
  max-width: 520px;
}

.search__icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

.search__icon svg {
  width: 20px;
  height: 20px;
  fill: var(--on-surface-variant);
  display: block;
}

.search__input {
  width: 100%;
  height: 46px;
  padding: 0 44px 0 46px;
  border: 1px solid transparent;
  border-radius: var(--r-full);
  background: var(--surface-container);
  color: var(--on-surface);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.search__input::placeholder { color: var(--on-surface-variant); }
.search__input:focus {
  outline: none;
  background: var(--surface-container-high);
  border-color: var(--primary);
}

.search__clear {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  border-radius: var(--r-full);
  display: grid;
  place-items: center;
}

.search__clear svg { width: 18px; height: 18px; fill: var(--on-surface-variant); }
.search__clear:hover { background: var(--surface-container-highest); }

.suggest {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  z-index: 40;
  background: var(--surface-container-high);
  border: 1px solid var(--outline-variant);
  border-radius: var(--r-md);
  padding: 8px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  max-height: 56vh;
  overflow-y: auto;
}

.suggest__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  padding: 6px 10px 8px;
}

.suggest__row {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: var(--r-sm);
  text-align: left;
  transition: background var(--dur) var(--ease);
}

.suggest__row:hover { background: var(--surface-container-highest); }

.suggest__row img {
  width: 40px;
  height: 40px;
  border-radius: var(--r-xs);
  object-fit: cover;
  flex: none;
}

.suggest__row svg {
  width: 20px;
  height: 20px;
  fill: var(--on-surface-variant);
  flex: none;
  margin: 0 10px;
}

.suggest__txt { min-width: 0; display: flex; flex-direction: column; }
.suggest__t { font-size: 14px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.suggest__s { font-size: 12.5px; color: var(--on-surface-variant); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ============================ view ============================ */

.view {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  background: var(--surface-container-low);
  border-radius: var(--r-lg);
  padding: 22px 26px 32px;
  transition: background var(--dur) var(--ease);
}

.view::-webkit-scrollbar, .pl-list::-webkit-scrollbar, .np__list::-webkit-scrollbar, .suggest::-webkit-scrollbar { width: 10px; }
.view::-webkit-scrollbar-thumb, .pl-list::-webkit-scrollbar-thumb, .np__list::-webkit-scrollbar-thumb, .suggest::-webkit-scrollbar-thumb {
  background: var(--outline-variant);
  border-radius: var(--r-full);
  border: 3px solid transparent;
  background-clip: content-box;
}

/* ---- hero ---- */

.hero {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  background: var(--surface-container);
  padding: 30px 32px 28px;
  margin-bottom: 22px;
  transition: background var(--dur) var(--ease);
}

.hero__blob {
  position: absolute;
  inset: auto -60px -140px auto;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--primary), transparent 65%);
  opacity: 0.28;
  filter: blur(6px);
  pointer-events: none;
  transition: background var(--dur) var(--ease);
}

.hero__kicker {
  position: relative;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 10px;
  transition: color var(--dur) var(--ease);
}

.hero__title {
  position: relative;
  margin: 0 0 22px;
  font-size: clamp(26px, 3.2vw, 42px);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.02em;
  max-width: 22ch;
}

.hero__row { position: relative; display: flex; gap: 12px; flex-wrap: wrap; }

.btn-filled, .btn-tonal {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--r-full);
  font-weight: 600;
  font-size: 14.5px;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), transform 120ms var(--ease);
}

.btn-filled { background: var(--primary); color: var(--on-primary); }
.btn-filled svg { width: 19px; height: 19px; fill: currentColor; }
.btn-filled:hover { filter: brightness(1.08); }
.btn-filled:active { transform: scale(0.97); }

.btn-tonal { background: var(--surface-container-highest); color: var(--on-surface); }
.btn-tonal:hover { background: var(--outline-variant); }
.btn-tonal:active { transform: scale(0.97); }

/* ---- mood chips ---- */

.chips {
  display: flex;
  gap: 9px;
  flex-wrap: wrap;
  margin-bottom: 26px;
}

.chip {
  height: 36px;
  padding: 0 17px;
  border-radius: var(--r-full);
  border: 1px solid var(--outline-variant);
  color: var(--on-surface-variant);
  font-size: 13.5px;
  font-weight: 500;
  white-space: nowrap;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.chip:hover { background: var(--surface-container-high); color: var(--on-surface); }
.chip.is-on {
  background: var(--primary-container);
  border-color: transparent;
  color: var(--on-primary-container);
}

/* ---- sections & shelves ---- */

.section { margin-bottom: 30px; }

.section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.section__title {
  margin: 0;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.section__more {
  font-size: 13px;
  font-weight: 600;
  color: var(--on-surface-variant);
  padding: 6px 12px;
  border-radius: var(--r-full);
  flex: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.section__more:hover { background: var(--surface-container-high); color: var(--on-surface); }

.shelf {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 168px;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 10px;
  scroll-snap-type: x proximity;
}

.shelf::-webkit-scrollbar { height: 8px; }
.shelf::-webkit-scrollbar-thumb {
  background: var(--outline-variant);
  border-radius: var(--r-full);
}

/* ---- card ---- */

.card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  scroll-snap-align: start;
  text-align: left;
  border-radius: var(--r-md);
  padding: 8px;
  transition: background var(--dur) var(--ease);
}

.card:hover { background: var(--surface-container-high); }

.card__art {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--r-sm);
  overflow: hidden;
  background: var(--surface-container-high);
  margin-bottom: 11px;
}

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

.card__play {
  position: absolute;
  right: 9px;
  bottom: 9px;
  width: 42px;
  height: 42px;
  border-radius: var(--r-full);
  background: var(--primary);
  color: var(--on-primary);
  display: grid;
  place-items: center;
  opacity: 0;
  transform: translateY(8px) scale(0.9);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.45);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.card__play svg { width: 20px; height: 20px; fill: currentColor; margin-left: 2px; }
.card:hover .card__play, .card:focus-visible .card__play { opacity: 1; transform: none; }

.card__title {
  display: block;
  max-width: 100%;
  margin-top: 10px;
  font-size: 14.5px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card__sub {
  display: block;
  max-width: 100%;
  font-size: 13px;
  color: var(--on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

.card--round .card__art { border-radius: var(--r-full); }
.card--round .card__title, .card--round .card__sub { text-align: center; }

/* ---- mix tile ---- */

.mix {
  scroll-snap-align: start;
  aspect-ratio: 1;
  border-radius: var(--r-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 4px;
  text-align: left;
  color: #fff;
  transition: transform var(--dur) var(--ease);
}

.mix:hover { transform: translateY(-3px); }

.mix__label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.82;
}

.mix__name { font-size: 19px; font-weight: 700; line-height: 1.15; }

/* ---- track rows ---- */

.tracks { display: flex; flex-direction: column; }

.track {
  display: grid;
  grid-template-columns: 26px 44px minmax(0, 2.2fr) minmax(0, 1.4fr) 52px 36px;
  align-items: center;
  gap: 14px;
  padding: 7px 12px;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: background var(--dur) var(--ease);
}

.track:hover, .track:focus-visible { background: var(--surface-container-high); }

.track__idx {
  font-size: 13px;
  color: var(--on-surface-variant);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.track__art { width: 44px; height: 44px; border-radius: var(--r-xs); object-fit: cover; background: var(--surface-container-high); }

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

.track__title {
  font-size: 14.5px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track__artist {
  font-size: 13px;
  color: var(--on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track__album {
  font-size: 13px;
  color: var(--on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track__dur {
  font-size: 13px;
  color: var(--on-surface-variant);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.track__more { opacity: 0; }
.track:hover .track__more, .track:focus-within .track__more { opacity: 1; }

.track.is-playing .track__title,
.track.is-playing .track__idx { color: var(--primary); font-weight: 600; }

/* ---- empty + skeleton ---- */

.empty {
  padding: 76px 20px;
  text-align: center;
  color: var(--on-surface-variant);
}

.empty__t {
  font-size: 20px;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: 8px;
}

.skel {
  border-radius: var(--r-md);
  background: linear-gradient(90deg, var(--surface-container) 25%, var(--surface-container-high) 37%, var(--surface-container) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.3s ease-in-out infinite;
}

@keyframes shimmer {
  from { background-position: 100% 0; }
  to { background-position: -100% 0; }
}

/* ---- settings ---- */

.set-group {
  background: var(--surface-container);
  border-radius: var(--r-lg);
  padding: 8px 20px 12px;
  margin-bottom: 16px;
  max-width: 760px;
  transition: background var(--dur) var(--ease);
}

.set-group__t {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  padding: 14px 0 6px;
  transition: color var(--dur) var(--ease);
}

.set-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 0;
  border-top: 1px solid var(--outline-variant);
}

.set-row:first-of-type { border-top: 0; }
.set-row__t { font-size: 15px; font-weight: 500; }
.set-row__s { font-size: 13px; color: var(--on-surface-variant); margin-top: 3px; max-width: 46ch; }

.switch {
  position: relative;
  width: 52px;
  height: 32px;
  border-radius: var(--r-full);
  background: var(--surface-container-highest);
  border: 2px solid var(--outline);
  flex: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.switch::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 5px;
  width: 16px;
  height: 16px;
  border-radius: var(--r-full);
  background: var(--outline);
  transform: translateY(-50%);
  transition: left var(--dur) var(--ease), width var(--dur) var(--ease), height var(--dur) var(--ease), background var(--dur) var(--ease);
}

.switch.is-on { background: var(--primary); border-color: var(--primary); }
.switch.is-on::after { left: 26px; width: 22px; height: 22px; background: var(--on-primary); }

.select {
  height: 42px;
  padding: 0 14px;
  border-radius: var(--r-sm);
  background: var(--surface-container-highest);
  border: 1px solid var(--outline-variant);
  flex: none;
}

/* ============================ now playing ============================ */

.np__artwrap {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--surface-container-high);
  margin-bottom: 16px;
  flex: none;
}

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

.np__meta { margin-bottom: 14px; }

.np__title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.np__artist {
  font-size: 13.5px;
  color: var(--on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 3px;
}

.np__actions { display: flex; gap: 6px; margin-bottom: 20px; }

.np__section {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin-bottom: 8px;
  flex: none;
}

.np__list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.qrow {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 7px 8px;
  border-radius: var(--r-sm);
  text-align: left;
  transition: background var(--dur) var(--ease);
}

.qrow:hover { background: var(--surface-container-high); }
.qrow img { width: 40px; height: 40px; border-radius: var(--r-xs); object-fit: cover; flex: none; }
.qrow__txt { min-width: 0; display: flex; flex-direction: column; }
.qrow__t { font-size: 13.5px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.qrow__a { font-size: 12px; color: var(--on-surface-variant); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ============================ transport ============================ */

.tp__now { display: flex; align-items: center; gap: 13px; min-width: 0; }

.tp__art {
  width: 56px;
  height: 56px;
  border-radius: var(--r-sm);
  object-fit: cover;
  background: var(--surface-container-high);
  flex: none;
}

.tp__meta { min-width: 0; }

.tp__title {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tp__artist {
  font-size: 12.5px;
  color: var(--on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

.tp__center { display: flex; flex-direction: column; align-items: center; gap: 5px; min-width: 0; width: 100%; }

.tp__buttons { display: flex; align-items: center; gap: 6px; }

.play-btn {
  width: 42px;
  height: 42px;
  border-radius: var(--r-full);
  background: var(--primary);
  color: var(--on-primary);
  display: grid;
  place-items: center;
  margin: 0 4px;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), transform 120ms var(--ease);
}

.play-btn:hover { filter: brightness(1.08); }
.play-btn:active { transform: scale(0.94); }
.play-btn svg { width: 21px; height: 21px; fill: currentColor; }
.play-btn .i-play { margin-left: 2px; }

.tp__seekrow {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  max-width: 620px;
}

.tp__time {
  font-size: 11.5px;
  color: var(--on-surface-variant);
  font-variant-numeric: tabular-nums;
  flex: none;
  min-width: 34px;
}

.tp__time:last-child { text-align: right; }

.tp__right { display: flex; align-items: center; justify-content: flex-end; gap: 6px; }

/* ---- icon buttons ---- */

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--r-full);
  display: grid;
  place-items: center;
  color: var(--on-surface-variant);
  flex: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.icon-btn svg { width: 20px; height: 20px; fill: currentColor; }
.icon-btn:hover { background: var(--surface-container-high); color: var(--on-surface); }
.icon-btn.is-on { color: var(--primary); }
.icon-btn--sm { width: 30px; height: 30px; }
.icon-btn--sm svg { width: 17px; height: 17px; }

/* ---- slider ---- */

.slider {
  position: relative;
  flex: 1;
  height: 20px;
  display: flex;
  align-items: center;
  cursor: pointer;
  touch-action: none;
}

.slider--vol { max-width: 108px; flex: none; width: 108px; }

.slider__track {
  width: 100%;
  height: 4px;
  border-radius: var(--r-full);
  background: var(--outline-variant);
  overflow: hidden;
  transition: height var(--dur) var(--ease), background var(--dur) var(--ease);
}

.slider__fill {
  height: 100%;
  width: 0;
  border-radius: var(--r-full);
  background: var(--primary);
  transition: background var(--dur) var(--ease);
}

.slider__thumb {
  position: absolute;
  top: 50%;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: var(--r-full);
  background: var(--primary);
  transform: translate(-50%, -50%) scale(0);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
  pointer-events: none;
}

.slider:hover .slider__thumb,
.slider:focus-visible .slider__thumb,
.slider.is-drag .slider__thumb { transform: translate(-50%, -50%) scale(1); }

.slider:hover .slider__track, .slider.is-drag .slider__track { height: 6px; }

/* ============================ overlays ============================ */

.ctx {
  position: fixed;
  z-index: 90;
  min-width: 232px;
  padding: 8px;
  background: var(--surface-container-high);
  border: 1px solid var(--outline-variant);
  border-radius: var(--r-md);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.55);
  animation: pop 140ms var(--ease);
}

@keyframes pop {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: none; }
}

.ctx__item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 9px 12px;
  border-radius: var(--r-xs);
  font-size: 14px;
  text-align: left;
  color: var(--on-surface);
  transition: background var(--dur) var(--ease);
}

.ctx__item:hover { background: var(--surface-container-highest); }
.ctx__item svg { width: 19px; height: 19px; fill: var(--on-surface-variant); flex: none; }
.ctx__sep { height: 1px; background: var(--outline-variant); margin: 6px 4px; }

.toast-host {
  position: fixed;
  left: 50%;
  bottom: calc(var(--tp-h) + 24px);
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}

.toast {
  background: var(--surface-container-highest);
  color: var(--on-surface);
  border: 1px solid var(--outline-variant);
  padding: 12px 20px;
  border-radius: var(--r-full);
  font-size: 14px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
  animation: rise 200ms var(--ease);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

.modal-host {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.62);
  backdrop-filter: blur(4px);
}

.modal {
  width: 100%;
  max-width: 400px;
  background: var(--surface-container-high);
  border-radius: var(--r-xl);
  padding: 28px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.6);
  animation: pop 180ms var(--ease);
}

.modal h2 { margin: 0 0 6px; font-size: 23px; font-weight: 700; letter-spacing: -0.015em; }
.modal p { margin: 0 0 22px; font-size: 14px; color: var(--on-surface-variant); }

.field { margin-bottom: 14px; }

.field label {
  display: block;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--on-surface-variant);
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  height: 46px;
  padding: 0 15px;
  border-radius: var(--r-sm);
  border: 1px solid var(--outline);
  background: var(--surface-container);
  color: var(--on-surface);
  transition: border-color var(--dur) var(--ease);
}

.field input:focus { outline: none; border-color: var(--primary); border-width: 2px; padding: 0 14px; }

.modal__err {
  min-height: 18px;
  font-size: 13px;
  color: var(--error);
  margin-bottom: 8px;
}

.modal__row { display: flex; gap: 10px; justify-content: flex-end; margin-top: 6px; }

.modal__switch {
  margin-top: 18px;
  text-align: center;
  font-size: 13.5px;
  color: var(--on-surface-variant);
}

.modal__switch button { color: var(--primary); font-weight: 600; }
.modal__switch button:hover { text-decoration: underline; }

/* ============================ responsive ============================ */

@media (max-width: 1280px) {
  .app {
    grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
    grid-template-areas:
      "sidebar main"
      "transport transport";
  }
  .np { display: none; }
}

@media (max-width: 900px) {
  :root { --tp-h: 128px; }

  .app {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "main"
      "transport";
    gap: 6px;
    padding: 6px;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 60;
    width: min(300px, 86vw);
    border-radius: 0 var(--r-lg) var(--r-lg) 0;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    transform: translateX(-100%);
    visibility: hidden;
    transition: transform var(--dur) var(--ease), visibility 0s linear var(--dur);
  }

  .sidebar.is-open {
    transform: none;
    visibility: visible;
    transition: transform var(--dur) var(--ease), visibility 0s;
  }

  .chips { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }

  .view { padding: 16px 14px 26px; border-radius: var(--r-md); }
  .topbar { padding: 6px 4px 0; }
  .search { max-width: none; }

  .hero { padding: 22px 20px; border-radius: var(--r-lg); }
  .shelf { grid-auto-columns: 142px; gap: 12px; }

  .track { grid-template-columns: 44px minmax(0, 1fr) 46px 34px; gap: 11px; }
  .track__idx, .track__album { display: none; }

  .transport {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto;
    gap: 6px;
    padding: 10px 14px;
    border-radius: var(--r-md);
  }

  .tp__right { display: none; }
  .tp__now { grid-row: 1; }
  .tp__center { grid-row: 2; }
  .tp__art { width: 46px; height: 46px; }
  .toast-host { bottom: calc(var(--tp-h) + 16px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}