:root {
  --background: #07111e;
  --sidebar: #091625;
  --surface: #0d1c2d;
  --surface-hover: #13263a;
  --border: #1b3045;
  --text: #eaf5ff;
  --muted: #8ba0b6;
  --blue: #59c8ff;
  --blue-dark: #299fe8;
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 30px;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 14px;
}

button,
input,
select {
  font: inherit;
}

button,
label,
a {
  -webkit-tap-highlight-color: transparent;
}

button,
.add-button,
.secondary-button {
  cursor: pointer;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
label:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

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

button {
  color: inherit;
}

.loading-screen {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #071525;
  transition: opacity .6s ease, visibility .6s ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-content {
  width: min(320px, 80%);
  text-align: center;
  animation: loading-appear .8s ease;
}

.loading-mountain {
  width: 130px;
  height: 95px;
  margin-bottom: 20px;
}

.loading-content h1 {
  color: var(--text);
  font-size: 28px;
  letter-spacing: 10px;
  margin: 0 0 28px 10px;
}

.loading-content p {
  color: #a9bfd3;
  font-size: 14px;
  margin: 20px 0 0;
}

.loading-bar {
  width: 100%;
  height: 5px;
  overflow: hidden;
  border-radius: 20px;
  background: #172f49;
}

.loading-progress {
  width: 38%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #299fe8, #eaf8ff, #55c8ff);
  box-shadow: 0 0 14px #55c8ff99;
  animation: glacier-loading-sweep 1.15s ease-in-out infinite;
}

@keyframes glacier-loading-sweep {
  0% { transform: translateX(-110%); }
  100% { transform: translateX(370%); }
}

@keyframes loading-appear {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.app-layout {
  min-height: 100vh;
  padding-bottom: 112px;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 235px;
  padding: 29px 18px;
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 0 12px;
  font-size: 24px;
  font-weight: 750;
  letter-spacing: -.8px;
  margin-bottom: 50px;
}

.brand-icon {
  display: grid;
  place-items: center;
  color: var(--blue);
  width: 34px;
  height: 34px;
  background: #59c8ff12;
  border: 1px solid #59c8ff25;
  border-radius: 11px;
}

.nav-label {
  padding: 0 12px;
  color: #647c94;
  font-size: 10px;
  letter-spacing: 1.7px;
  font-weight: 700;
}

.navigation {
  display: grid;
  gap: 8px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 13px 14px;
  color: var(--muted);
  border-radius: 10px;
  transition: .2s;
}

.nav-link span {
  width: 18px;
  text-align: center;
  font-size: 18px;
}

.nav-link:hover,
.nav-link.active {
  background: #59c8ff12;
  color: var(--blue);
}

.sidebar-library {
  margin-top: 34px;
}

.sidebar-bottom {
  margin-top: auto;
  padding: 19px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: linear-gradient(145deg, #10243a, #0a1827);
}

.sidebar-mountain {
  font-size: 24px;
  color: var(--blue);
  margin-bottom: 12px;
}

.sidebar-bottom p {
  margin: 0 0 6px;
  font-weight: 650;
}

.sidebar-bottom span {
  font-size: 12px;
  color: var(--muted);
}

.main-content {
  margin-left: 235px;
  max-width: 1700px;
  padding: 34px 42px 30px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 30px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 2px;
}

.topbar h2 {
  margin: 0;
  font-size: clamp(22px, 2vw, 29px);
  letter-spacing: -.8px;
}

.add-button,
.secondary-button,
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 0;
  border-radius: 10px;
  padding: 12px 17px;
  font-weight: 650;
  transition: transform .2s, background .2s;
}

.add-button,
.primary-button {
  background: var(--blue);
  color: #071525;
}

.add-button:hover,
.primary-button:hover {
  background: #8bdcff;
  transform: translateY(-1px);
}

.secondary-button {
  background: var(--surface-hover);
  color: var(--text);
  border: 1px solid var(--border);
}

.secondary-button:hover {
  border-color: var(--blue);
}

.hero {
  position: relative;
  min-height: 270px;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 36px 40px;
  border: 1px solid #59c8ff20;
  border-radius: 20px;
  background:
    radial-gradient(ellipse at 85% 50%, #1c5c8750, transparent 38%),
    linear-gradient(115deg, #10283e, #0c1b2b 70%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 510px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #c0eaff;
  font-size: 9px;
  letter-spacing: 1.5px;
  font-weight: 700;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 12px var(--blue);
}

.hero h1 {
  margin: 20px 0 12px;
  font-size: clamp(35px, 4vw, 54px);
  line-height: 1.05;
  letter-spacing: -2px;
}

.hero h1 span {
  color: var(--blue);
}

.hero-content > p:not(.eyebrow) {
  color: #9cb2c7;
  line-height: 1.7;
  max-width: 390px;
}

.hero .primary-button {
  margin-top: 12px;
}

.hero-art {
  position: absolute;
  right: 5%;
  top: 50%;
  width: 270px;
  height: 220px;
  transform: translateY(-50%);
  display: grid;
  place-items: center;
}

.hero-glow {
  position: absolute;
  width: 180px;
  height: 180px;
  background: #59c8ff20;
  filter: blur(40px);
  border-radius: 50%;
}

.hero-mountain {
  width: 190px;
  z-index: 1;
  filter: drop-shadow(0 12px 30px #59c8ff30);
}

.art-ring {
  position: absolute;
  border: 1px solid #59c8ff20;
  border-radius: 50%;
}

.ring-one {
  width: 200px;
  height: 200px;
}

.ring-two {
  width: 250px;
  height: 250px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 15px;
  margin: 22px 0 39px;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  min-width: 0;
}

.stat-icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  color: var(--blue);
  background: #59c8ff12;
  font-size: 20px;
}

.stat-card div {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.stat-label {
  color: var(--muted);
  font-size: 11px;
}

.stat-card strong {
  font-size: 15px;
  overflow-wrap: anywhere;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  margin-bottom: 22px;
}

.section-heading h2 {
  margin: 0;
  font-size: 25px;
  letter-spacing: -.6px;
}

.section-subtitle {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.library-toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
  padding: 0 14px;
  height: 45px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--muted);
}

.search-box > span {
  font-size: 23px;
}

.search-box input {
  flex: 1;
  min-width: 0;
  background: transparent;
  color: var(--text);
  outline: none;
  border: none;
}

.search-box kbd {
  padding: 3px 7px;
  border: 1px solid var(--border);
  border-radius: 5px;
  font-size: 11px;
}

.sort-select {
  max-width: 230px;
  min-width: 0;
  padding: 0 12px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.status-message {
  min-height: 0;
  color: var(--blue);
  font-size: 12px;
}

.music-table {
  width: 100%;
}

.music-header,
.music-row {
  display: grid;
  grid-template-columns: 36px minmax(120px, 1.5fr) minmax(90px, 1fr) 75px 35px;
  align-items: center;
  gap: 12px;
}

.music-header {
  padding: 12px 14px;
  color: #6e849a;
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 1px;
  border-bottom: 1px solid var(--border);
}

.music-row {
  min-height: 76px;
  padding: 10px 14px;
  border-bottom: 1px solid #1b304560;
  border-radius: 8px;
  transition: background .2s;
}

.music-row:hover {
  background: var(--surface-hover);
}

.music-number {
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.row-play {
  display: none;
  width: 27px;
  height: 27px;
  border: 0;
  border-radius: 50%;
  color: #071525;
  background: var(--blue);
  cursor: pointer;
}

.music-row:hover .music-number {
  display: none;
}

.music-row:hover .row-play {
  display: inline-grid;
  place-items: center;
}

.music-row.is-playing .music-number {
  color: var(--blue);
}

.music-title {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.song-cover {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 43px;
  height: 43px;
  border-radius: 9px;
  color: var(--blue);
  background: linear-gradient(145deg, #173954, #102236);
  font-size: 18px;
}

.song-name {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 650;
}

.song-subtitle,
.music-artist {
  display: block;
  margin-top: 5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted);
  font-size: 11px;
}

.music-artist {
  margin-top: 0;
}

.music-duration {
  color: var(--muted);
  font-size: 12px;
  text-align: right;
}

.row-actions {
  display: flex;
  justify-content: flex-end;
}

.delete-button {
  width: 30px;
  height: 30px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #8297ac;
  cursor: pointer;
}

.delete-button:hover {
  color: #ff7f8b;
  background: #ff7f8b15;
}

.empty-state {
  padding: 50px 20px;
  text-align: center;
  border: 1px dashed #263f57;
  border-radius: 14px;
  margin-top: 15px;
}

.empty-icon {
  display: grid;
  place-items: center;
  width: 65px;
  height: 65px;
  margin: 0 auto 18px;
  color: var(--blue);
  background: #59c8ff12;
  border-radius: 18px;
  font-size: 30px;
}

.empty-state h3 {
  margin: 0 0 9px;
  font-size: 17px;
}

.empty-state p {
  margin: 0 0 20px;
  color: var(--muted);
  line-height: 1.6;
}

.page-footer {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  margin-top: 40px;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  color: #60768c;
  font-size: 10px;
  letter-spacing: .6px;
}

.player {
  position: fixed;
  inset: auto 0 0;
  z-index: 100;
  min-height: 94px;
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(280px, 1.4fr) minmax(100px, 1fr);
  align-items: center;
  gap: 25px;
  padding: 15px 28px;
  background: #091522f5;
  border-top: 1px solid var(--border);
  backdrop-filter: blur(20px);
}

.now-playing {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.track-cover {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 51px;
  height: 51px;
  border: 1px solid #59c8ff25;
  border-radius: 11px;
  background: linear-gradient(145deg, #173954, #102236);
  color: var(--blue);
  font-size: 22px;
}

.track-details {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.track-details strong,
.track-details span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.track-details strong {
  font-size: 12px;
}

.track-details span {
  color: var(--muted);
  font-size: 11px;
}

.player-main {
  min-width: 0;
}

.player-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 17px;
  margin-bottom: 11px;
}

.icon-button,
.play-button {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  border: 0;
  cursor: pointer;
  transition: .2s;
}

.icon-button {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  color: var(--muted);
  background: transparent;
  font-size: 15px;
}

.icon-button:hover,
.icon-button[aria-pressed="true"] {
  color: var(--blue);
  background: #59c8ff12;
}

.play-button {
  width: 39px;
  height: 39px;
  border-radius: 50%;
  color: #071525;
  background: var(--blue);
  font-size: 15px;
}

.play-button:hover {
  transform: scale(1.07);
  background: #a0e3ff;
}

.timeline {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
}

.timeline input,
.player-volume input {
  min-width: 0;
  accent-color: var(--blue);
  cursor: pointer;
}

.timeline input {
  width: 100%;
}

.player-volume {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  color: var(--muted);
}

.player-volume input {
  width: 100px;
  max-width: 100%;
}

@media (min-width: 1500px) {
  .main-content {
    margin-left: 255px;
    padding-left: 55px;
    padding-right: 55px;
  }

  .sidebar {
    width: 255px;
  }
}

@media (max-width: 1050px) {
  .sidebar {
    width: 190px;
    padding-inline: 12px;
  }

  .main-content {
    margin-left: 190px;
    padding: 28px 24px;
  }

  .hero-art {
    right: -20px;
    opacity: .65;
  }

  .player {
    grid-template-columns: minmax(140px, 1fr) minmax(230px, 1.4fr) minmax(70px, .6fr);
    gap: 14px;
    padding-inline: 16px;
  }

  .player-buttons {
    gap: 8px;
  }

  .player-volume input {
    width: 65px;
  }
}

@media (max-width: 700px) {
  .app-layout {
    padding-bottom: 185px;
  }

  .sidebar {
    position: static;
    width: 100%;
    height: auto;
    padding: 14px 18px;
    border-right: 0;
    border-bottom: 1px solid var(--border);
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .brand {
    margin: 0;
    padding: 0;
    font-size: 21px;
  }

  .brand-icon {
    width: 30px;
    height: 30px;
  }

  .sidebar .nav-label,
  .sidebar-library,
  .sidebar-bottom {
    display: none;
  }

  .navigation {
    display: flex;
    gap: 5px;
  }

  .nav-link {
    padding: 9px;
    gap: 6px;
    font-size: 11px;
  }

  .nav-link span {
    font-size: 15px;
    width: auto;
  }

  .main-content {
    margin-left: 0;
    padding: 25px 16px;
  }

  .topbar {
    align-items: flex-start;
    margin-bottom: 22px;
  }

  .topbar h2 {
    font-size: 21px;
  }

  .add-button {
    padding: 10px;
    font-size: 11px;
  }

  .hero {
    min-height: 265px;
    padding: 27px 22px;
  }

  .hero h1 {
    font-size: 39px;
  }

  .hero-content {
    max-width: 80%;
  }

  .hero-art {
    right: -95px;
    opacity: .35;
  }

  .hero-content > p:not(.eyebrow) {
    font-size: 12px;
  }

  .stats {
    grid-template-columns: 1fr;
    gap: 9px;
    margin: 16px 0 30px;
  }

  .stat-card {
    padding: 12px;
  }

  .stat-icon {
    width: 36px;
    height: 36px;
  }

  .section-heading h2 {
    font-size: 21px;
  }

  .library-toolbar {
    flex-direction: column;
  }

  .search-box {
    flex: auto;
  }

  .sort-select {
    width: 100%;
    max-width: none;
    height: 42px;
  }

  .music-header,
  .music-row {
    grid-template-columns: 24px minmax(100px, 1fr) 52px 28px;
    gap: 7px;
    padding-inline: 6px;
  }

  .music-header span:nth-child(3),
  .music-row .music-artist {
    display: none;
  }

  .music-header .duration-heading {
    display: block;
    font-size: 8px;
  }

  .song-cover {
    width: 36px;
    height: 36px;
  }

  .music-title {
    gap: 8px;
  }

  .song-name {
    font-size: 11px;
  }

  .music-duration {
    font-size: 10px;
  }

  .page-footer {
    font-size: 8px;
  }

  .player {
    grid-template-columns: 1fr auto;
    gap: 12px;
    padding: 12px 15px;
    min-height: 155px;
  }

  .now-playing {
    grid-column: 1;
  }

  .track-cover {
    width: 42px;
    height: 42px;
  }

  .player-volume {
    grid-column: 2;
    grid-row: 1;
  }

  .player-volume input {
    width: 55px;
  }

  .player-main {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .player-buttons {
    margin-bottom: 7px;
  }

  .page-footer span:last-child {
    text-align: right;
  }
}