:root {
  --primary: #460856;
  --primary-dark: #31063c;
  --accent: #850fa3;
  --secondary: #ff5722;
  --bg: #f5f0f7;
  --card: #ffffff;
  --text: #1c1c1c;
  --muted: #7a7280;
  --line: #e6dde9;
  --player-h: 74px;
}

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

html, body { height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding-bottom: var(--player-h);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- App bar ---------- */
.app-bar {
  position: sticky; top: 0; z-index: 50;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 55%, var(--accent) 130%);
  box-shadow: 0 1px 6px rgba(0,0,0,.25);
}
.app-bar-inner {
  max-width: 1240px; margin: 0 auto; padding: 10px 20px;
  display: flex; align-items: center; gap: 26px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 9px; }
.brand-word {
  font-family: "Sans Original", "Arial Narrow", Arial, sans-serif;
  font-size: 27px; letter-spacing: .5px; color: #fff;
}
.brand:hover { text-decoration: none; }
.brand-mark { display: flex; }

.nav { display: flex; gap: 4px; }
.nav a {
  color: rgba(255,255,255,.78); font-size: 14px; font-weight: 600;
  padding: 8px 13px; border-radius: 999px; letter-spacing: .2px;
}
.nav a:hover { background: rgba(255,255,255,.10); text-decoration: none; color: #fff; }
.nav a.active { background: #fff; color: var(--primary); }

.search {
  margin-left: auto; display: flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.14); border-radius: 999px;
  padding: 8px 16px; min-width: 240px; flex: 1; max-width: 380px;
}
.search i { color: rgba(255,255,255,.85); font-size: 20px; }
.search input {
  background: transparent; border: 0; outline: 0; color: #fff; font-size: 14px; width: 100%;
}
.search input::placeholder { color: rgba(255,255,255,.6); }

.upload-btn {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--secondary); color: #fff; border: 0; cursor: pointer;
  font-weight: 700; font-size: 13.5px; padding: 9px 16px; border-radius: 999px;
  white-space: nowrap; transition: transform .12s ease, box-shadow .12s ease;
}
.upload-btn:hover { transform: translateY(-1px); box-shadow: 0 5px 14px rgba(255,87,34,.45); }
.upload-btn i { font-size: 18px; }

/* ---------- Upload modal ---------- */
.modal-back {
  position: fixed; inset: 0; z-index: 80; display: flex; align-items: center; justify-content: center;
  background: rgba(30,5,40,.55); backdrop-filter: blur(3px); padding: 20px;
}
.modal-back[hidden] { display: none; }
.modal {
  width: 100%; max-width: 460px; background: var(--card); border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,.4); padding: 24px 26px; max-height: 92vh; overflow: auto;
}
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.modal-head h2 { font-size: 20px; font-weight: 800; }
.modal-x {
  background: transparent; border: 0; cursor: pointer; color: var(--muted);
  font-size: 22px; display: flex; padding: 4px; border-radius: 50%;
}
.modal-x:hover { color: var(--text); background: var(--bg); }
.modal-sub { color: var(--muted); font-size: 13px; margin-bottom: 18px; }
.modal-sub code { background: var(--bg); padding: 1px 6px; border-radius: 5px; font-size: 12px; }
.field { display: block; font-size: 12.5px; font-weight: 700; color: var(--muted); margin-bottom: 14px; }
.field input {
  display: block; width: 100%; margin-top: 5px; padding: 10px 13px;
  border: 1.5px solid var(--line); border-radius: 9px; font-size: 14px; color: var(--text);
  background: #fff; outline: none;
}
.field input:focus { border-color: var(--accent); }
.field input[type=file] { padding: 8px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.modal-status { font-size: 13px; color: var(--accent); min-height: 18px; margin-bottom: 10px; }
.btn-block { width: 100%; justify-content: center; }
.modal .btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  background: var(--accent); color: #fff; font-weight: 700; font-size: 14px;
  padding: 11px 20px; border-radius: 999px; border: 0;
}
.modal .btn:hover { background: #6d0b88; }
.modal .btn:disabled { opacity: .55; cursor: wait; }

/* ---------- Related artists ---------- */
.related-list { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 6px; }
.rel-chip {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--card); border: 1px solid var(--line); border-radius: 999px;
  padding: 5px 15px 5px 6px; color: var(--text); font-size: 13.5px; font-weight: 600;
  box-shadow: 0 2px 8px rgba(70,8,86,.08); transition: transform .12s ease, box-shadow .12s ease;
}
.rel-chip:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(70,8,86,.18); text-decoration: none; }
.rel-av { width: 28px; height: 28px; border-radius: 50%; background-size: cover; background-position: center; }

/* ---------- Graph view ---------- */
.graph-top { display: flex; align-items: flex-end; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.graph-controls { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.seg { display: inline-flex; background: #ece3f0; border-radius: 999px; padding: 4px; gap: 2px; }
.seg-btn {
  display: inline-flex; align-items: center; gap: 7px; border: 0; cursor: pointer;
  background: transparent; color: var(--muted); font-weight: 700; font-size: 13px;
  padding: 8px 15px; border-radius: 999px; transition: background .12s ease, color .12s ease;
}
.seg-btn i { font-size: 17px; }
.seg-btn.active { background: var(--accent); color: #fff; box-shadow: 0 3px 10px rgba(133,15,163,.35); }
.graph-search {
  display: flex; align-items: center; gap: 8px;
  background: var(--card); border: 1.5px solid var(--line); border-radius: 999px;
  padding: 7px 15px; min-width: 240px;
}
.graph-search i { color: var(--muted); font-size: 19px; }
.graph-search input { border: 0; outline: 0; background: transparent; font-size: 14px; color: var(--text); width: 100%; }
.graph-wrap {
  border-radius: 16px; overflow: hidden; position: relative;
  background: radial-gradient(120% 160% at 85% -20%, rgba(133,15,163,.16) 0%, transparent 50%),
              radial-gradient(120% 150% at 0% 120%, rgba(49,6,60,.18) 0%, transparent 55%),
              #2a0f36;
  box-shadow: 0 6px 24px rgba(49,6,60,.25);
}
#graph-canvas { display: block; touch-action: none; cursor: grab; }
#graph-canvas:active { cursor: grabbing; }
.graph-hint {
  margin-top: 10px; color: var(--muted); font-size: 12.5px; display: flex; align-items: center; gap: 7px;
}
.graph-hint i { font-size: 16px; color: var(--accent); }
.graph-hint b { color: var(--text); }

/* ---------- View ---------- */
.view { max-width: 1240px; margin: 0 auto; padding: 22px 20px 40px; }

.loading { text-align: center; padding: 90px 0; color: var(--muted); }
.spinner {
  width: 34px; height: 34px; margin: 0 auto 14px;
  border: 4px solid var(--line); border-top-color: var(--accent);
  border-radius: 50%; animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.section-title { font-size: 21px; font-weight: 800; margin: 28px 0 14px; display: flex; align-items: baseline; gap: 10px; }
.section-title small { color: var(--muted); font-weight: 600; font-size: 12.5px; letter-spacing: .4px; text-transform: uppercase; }

/* ---------- Hero ---------- */
.hero {
  border-radius: 18px; padding: 42px 38px; color: #fff;
  background: radial-gradient(120% 160% at 85% -20%, rgba(255,87,34,.55) 0%, transparent 45%),
              radial-gradient(120% 150% at 0% 120%, rgba(133,15,163,.75) 0%, transparent 55%),
              linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #6a1b9a 100%);
  box-shadow: 0 10px 30px rgba(49,6,60,.35);
}
.hero h1 { font-family: "Sans Original", "Arial Narrow", Arial, sans-serif; font-size: 40px; font-weight: 700; letter-spacing: .5px; }
.hero p { color: rgba(255,255,255,.85); margin: 10px 0 20px; max-width: 520px; font-size: 15.5px; line-height: 1.5; }
.hero .stats { display: flex; gap: 34px; flex-wrap: wrap; }
.hero .stat b { font-size: 26px; display: block; font-weight: 800; }
.hero .stat span { font-size: 12.5px; text-transform: uppercase; letter-spacing: 1px; color: rgba(255,255,255,.75); }
.hero-btn {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 22px;
  background: var(--secondary); color: #fff; font-weight: 700; font-size: 14.5px;
  padding: 12px 22px; border-radius: 999px; border: 0; cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease;
}
.hero-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(255,87,34,.45); }

/* ---------- Grids & cards ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(152px, 1fr)); gap: 18px; }
.grid-wide { grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); }

.cover {
  aspect-ratio: 1 / 1; border-radius: 10px; overflow: hidden; cursor: pointer;
  background: var(--line); position: relative; box-shadow: 0 3px 10px rgba(70,8,86,.16);
  transition: transform .14s ease, box-shadow .14s ease;
}
.cover:hover { transform: translateY(-3px); box-shadow: 0 10px 22px rgba(70,8,86,.28); }
.cover img, .cover .art { width: 100%; height: 100%; object-fit: cover; display: block; }
.cover .play-ov {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,.35); opacity: 0; transition: opacity .15s ease; color: #fff;
}
.cover:hover .play-ov { opacity: 1; }
.cover .play-ov i { font-size: 46px; text-shadow: 0 2px 8px rgba(0,0,0,.5); }

.card { cursor: pointer; }
.card .name { font-size: 14px; font-weight: 700; margin-top: 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card .sub { font-size: 12.5px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.artist-av {
  aspect-ratio: 1 / 1; border-radius: 50%; overflow: hidden; cursor: pointer; position: relative;
  box-shadow: 0 3px 10px rgba(70,8,86,.18); transition: transform .14s ease;
}
.artist-av:hover { transform: translateY(-3px); }
.artist-av .initials { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 34px; font-weight: 800; }

/* ---------- Detail header ---------- */
.detail {
  display: flex; gap: 26px; align-items: flex-end; padding: 26px 28px;
  border-radius: 16px; background: var(--card); box-shadow: 0 4px 16px rgba(70,8,86,.10);
}
.detail .cover { width: 170px; flex: 0 0 170px; }
.detail h1 { font-size: 30px; font-weight: 800; line-height: 1.1; }
.detail .meta { color: var(--muted); font-size: 14px; margin: 8px 0 16px; }
.detail .btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  background: var(--accent); color: #fff; font-weight: 700; font-size: 14px;
  padding: 11px 20px; border-radius: 999px; border: 0;
}
.detail .btn:hover { background: #6d0b88; }
.detail .btn i { font-size: 19px; }

/* ---------- Song table ---------- */
.tracks { background: var(--card); border-radius: 14px; box-shadow: 0 4px 16px rgba(70,8,86,.08); overflow: hidden; margin-top: 22px; }
.tracks .thead, .tracks .track {
  display: grid; grid-template-columns: 44px 1fr 220px 120px 60px 46px; gap: 12px; align-items: center;
  padding: 0 16px;
}
.tracks .thead {
  font-size: 11.5px; text-transform: uppercase; letter-spacing: .8px; color: var(--muted);
  padding-top: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--line); cursor: pointer; user-select: none;
}
.tracks .thead .col:hover { color: var(--accent); }
.tracks .track { padding: 9px 16px; border-bottom: 1px solid #f2ecf4; cursor: pointer; font-size: 14px; }
.tracks .track:hover { background: #faf6fb; }
.tracks .track.playing { background: #f3e7f7; }
.tracks .track.playing .title { color: var(--accent); }
.tracks .num { color: var(--muted); font-size: 13px; text-align: center; font-variant-numeric: tabular-nums; }
.tracks .track .num .mdi { display: none; font-size: 19px; }
.tracks .track:hover .num span, .tracks .track.playing .num span { display: none; }
.tracks .track:hover .num .mdi, .tracks .track.playing .num .mdi { display: inline; color: var(--accent); }
.tracks .title { font-weight: 600; }
.tracks .artist, .tracks .album { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tracks .artist a { color: inherit; }
.tracks .artist a:hover { color: var(--accent); text-decoration: none; }
.tracks .dur { color: var(--muted); text-align: right; font-variant-numeric: tabular-nums; }
.tracks .year { color: var(--muted); }
.tracks .play-ic { display: none; font-size: 21px; color: var(--accent); }

.empty { text-align: center; padding: 70px 0; color: var(--muted); }
.empty i { font-size: 52px; display: block; margin-bottom: 14px; color: var(--line); }

/* ---------- Chips / filters ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 4px; }
.chip {
  border: 1px solid var(--line); background: #fff; color: var(--text);
  border-radius: 999px; padding: 6px 14px; font-size: 13px; cursor: pointer;
}
.chip.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ---------- Player ---------- */
.player {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; height: var(--player-h);
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
  color: #fff; display: flex; align-items: center; gap: 16px; padding: 0 18px;
  box-shadow: 0 -2px 12px rgba(0,0,0,.3);
}
.player[hidden] { display: none; }
.player .now { display: flex; align-items: center; gap: 12px; min-width: 0; flex: 1; }
.player .thumb { width: 48px; height: 48px; border-radius: 8px; overflow: hidden; flex: 0 0 48px; }
.player .thumb .art, .player .thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.now-meta { min-width: 0; }
.now-title { font-weight: 700; font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 300px; }
.now-artist { font-size: 12.5px; color: rgba(255,255,255,.7); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 300px; }
.p-btn {
  background: transparent; border: 0; color: #fff; cursor: pointer; font-size: 30px;
  display: flex; align-items: center; padding: 4px; border-radius: 50%;
}
.p-btn:hover { color: #ffd9f2; }
#p-play { font-size: 44px; }
#p-play i { font-size: 44px; }
#p-next i { font-size: 32px; }

.seek-wrap { display: flex; align-items: center; gap: 10px; min-width: 260px; flex: 2; }
.time { font-size: 12px; color: rgba(255,255,255,.8); font-variant-numeric: tabular-nums; min-width: 38px; text-align: center; }

input[type="range"].seek {
  -webkit-appearance: none; appearance: none; height: 5px; border-radius: 5px;
  background: rgba(255,255,255,.28); outline: none; cursor: pointer; flex: 1;
}
input[type="range"].seek::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 15px; height: 15px; border-radius: 50%;
  background: #fff; border: 0; box-shadow: 0 1px 4px rgba(0,0,0,.4);
}
input[type="range"].seek::-moz-range-thumb { width: 15px; height: 15px; border-radius: 50%; background: #fff; border: 0; }

.vol { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.8); }
.vol i { font-size: 22px; }
.vol-slider { min-width: 100px; }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .app-bar-inner { gap: 12px; }
  .search { order: 3; flex-basis: 100%; max-width: none; }
  .upload-btn { padding: 9px 11px; }
  .upload-btn span { display: none; }
  .detail { flex-direction: column; align-items: flex-start; }
  .tracks .thead, .tracks .track { grid-template-columns: 36px 1fr 110px 50px; }
  .tracks .thead .col-album { display: none; }
  .tracks .album { display: none; }
  .tracks .year { display: none; }
  .tracks .thead .col-year { display: none; }
  .vol { display: none; }
  .hero h1 { font-size: 30px; }
  .row2 { grid-template-columns: 1fr; }
}