/* ==========================================================================
   TuneHub — light-mode-only design system
   Warm paper background, coral + deep-teal accents, serif display type.
   ========================================================================== */

:root {
  --bg: #fbf6ec;
  --bg-soft: #f3ead9;
  --surface: #ffffff;
  --surface-alt: #fff9f0;
  --ink: #241a12;
  --ink-soft: #6e5f4e;
  --ink-faint: #a4937c;
  --border: #e9dcc3;
  --border-soft: #f0e6d2;

  --accent: #ff5a3c;
  --accent-ink: #ffffff;
  --accent-soft: #ffe3da;
  --teal: #0d6d63;
  --teal-soft: #dcf1ec;
  --gold: #d99a2b;

  --danger: #c8402c;
  --success: #1f8a5f;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 26px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(36, 26, 18, 0.06);
  --shadow: 0 8px 24px -8px rgba(36, 26, 18, 0.18);
  --shadow-lg: 0 20px 50px -12px rgba(36, 26, 18, 0.28);

  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --player-h: 92px;
  --topbar-h: 72px;
}

* { box-sizing: border-box; }
html { color-scheme: light only; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(var(--player-h) + 24px);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.4em;
  letter-spacing: -0.01em;
}
h1 { font-size: 2.5rem; }
h2 { font-size: 1.7rem; }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; color: var(--ink-soft); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------------------------------------------------------------- topbar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  background: rgba(251, 246, 236, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.topbar-inner {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--ink);
  flex-shrink: 0;
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--accent), var(--gold));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-family: var(--font-body);
  box-shadow: var(--shadow-sm);
}
.nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
}
.nav-links a {
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--ink-soft);
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active {
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}
.mobile-only-link { display: none; }
.search-form {
  flex: 1;
  max-width: 320px;
  position: relative;
}
.search-form input {
  width: 100%;
  padding: 9px 16px 9px 36px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.88rem;
  color: var(--ink);
}
.search-form input:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.search-icon { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); opacity: 0.5; font-size: 0.9rem; }
.nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

/* ---------------------------------------------------------------- buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 0.86rem;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: var(--shadow-sm); }
.btn-primary:hover { box-shadow: var(--shadow); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 0.78rem; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-icon {
  width: 38px; height: 38px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); background: var(--surface); cursor: pointer;
}
.btn-icon:hover { border-color: var(--accent); color: var(--accent); }
.btn-icon.active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

/* ---------------------------------------------------------------- hero */
.hero {
  padding: 56px 0 40px;
  background: radial-gradient(circle at 15% 20%, var(--accent-soft), transparent 55%),
              radial-gradient(circle at 85% 0%, var(--teal-soft), transparent 50%);
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: var(--radius-pill);
  background: var(--surface); border: 1px solid var(--border);
  font-size: 0.76rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--teal); margin-bottom: 18px;
}
.hero h1 { max-width: 700px; }
.hero p.lead { font-size: 1.1rem; max-width: 560px; }

/* ---------------------------------------------------------------- sections */
.section { padding: 40px 0; }
.section-head {
  display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 20px;
}
.section-head .see-all { font-weight: 700; font-size: 0.82rem; color: var(--teal); }

/* ---------------------------------------------------------------- song grid/cards */
.song-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 20px;
}
.song-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 12px;
  border: 1px solid var(--border-soft);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  position: relative;
}
.song-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.song-cover {
  aspect-ratio: 1; border-radius: var(--radius-sm); overflow: hidden;
  background: linear-gradient(145deg, var(--bg-soft), var(--border-soft));
  margin-bottom: 10px; position: relative;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-faint); font-size: 1.8rem;
}
.song-cover img { width: 100%; height: 100%; object-fit: cover; }
.song-play-btn {
  position: absolute; right: 8px; bottom: 8px;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--accent); color: #fff; border: none;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(6px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  cursor: pointer; box-shadow: var(--shadow);
}
.song-card:hover .song-play-btn { opacity: 1; transform: translateY(0); }
.song-add-btn {
  position: absolute; left: 8px; top: 8px;
  width: 30px; height: 30px; border-radius: 50%;
  background: rgba(255,255,255,0.92); color: var(--ink); border: none;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(-6px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  cursor: pointer; box-shadow: var(--shadow-sm); font-size: 0.9rem;
}
.song-card:hover .song-add-btn { opacity: 1; transform: translateY(0); }
.song-add-btn:hover { background: var(--accent); color: #fff; }

/* Add-to-playlist dropdown menu (positioned by JS) */
.playlist-menu {
  position: fixed; z-index: 200; min-width: 200px; max-width: 260px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg); padding: 6px; display: none;
}
.playlist-menu.open { display: block; }
.playlist-menu .menu-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-faint); padding: 6px 10px 2px; }
.playlist-menu button.menu-item {
  display: flex; align-items: center; justify-content: space-between; gap: 8px; width: 100%;
  text-align: left; padding: 8px 10px; border-radius: 8px; border: none; background: none;
  font-size: 0.84rem; font-weight: 600; color: var(--ink); cursor: pointer;
}
.playlist-menu button.menu-item:hover { background: var(--surface-alt); }
.playlist-menu button.menu-item .added-check { color: var(--teal); }
.playlist-menu .menu-divider { height: 1px; background: var(--border-soft); margin: 6px 4px; }
.playlist-menu .menu-new { display: flex; gap: 6px; padding: 6px; }
.playlist-menu .menu-new input {
  flex: 1; padding: 7px 10px; border-radius: 8px; border: 1px solid var(--border);
  font-size: 0.82rem; background: var(--surface-alt); color: var(--ink);
}
.playlist-menu .menu-new button {
  padding: 7px 10px; border-radius: 8px; border: none; background: var(--ink); color: #fff;
  font-size: 0.78rem; font-weight: 700; cursor: pointer;
}
.song-title { font-weight: 700; font-size: 0.92rem; margin-bottom: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.song-sub { font-size: 0.78rem; color: var(--ink-faint); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* song list row (search / playlist / collection pages) */
.song-list { display: flex; flex-direction: column; gap: 4px; }
.song-row {
  display: grid;
  grid-template-columns: 40px 44px 1fr auto auto;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
}
.song-row:hover { background: var(--surface); }
.song-row .idx { color: var(--ink-faint); font-size: 0.82rem; text-align: center; }
.song-row .row-cover { width: 44px; height: 44px; border-radius: 8px; overflow: hidden; background: var(--bg-soft); display: flex; align-items: center; justify-content: center; color: var(--ink-faint); }
.song-row .row-cover img { width: 100%; height: 100%; object-fit: cover; }
.song-row .row-title { font-weight: 700; font-size: 0.9rem; }
.song-row .row-sub { font-size: 0.78rem; color: var(--ink-faint); }
.song-row .row-duration { font-size: 0.8rem; color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.song-row.playing { background: var(--accent-soft); }
.song-row.playing .row-title { color: var(--accent); }

.pill-tag {
  display: inline-flex; align-items: center;
  padding: 4px 12px; border-radius: var(--radius-pill);
  background: var(--surface); border: 1px solid var(--border);
  font-size: 0.78rem; font-weight: 600; color: var(--ink-soft);
}
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }

/* year / artist / movie / genre index tiles */
.tile-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 16px; }
.tile {
  background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius);
  padding: 18px; text-align: center; transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.tile:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.tile .tile-figure {
  width: 76px; height: 76px; border-radius: 50%; margin: 0 auto 12px;
  background: linear-gradient(145deg, var(--teal-soft), var(--accent-soft));
  display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; color: var(--teal);
  overflow: hidden;
}
.tile .tile-figure img { width: 100%; height: 100%; object-fit: cover; }
.tile .tile-name { font-weight: 700; font-size: 0.92rem; }
.tile .tile-meta { font-size: 0.76rem; color: var(--ink-faint); }
.tile.tile-year .tile-figure { border-radius: var(--radius-sm); font-size: 1.1rem; }

/* ---------------------------------------------------------------- player bar */
.player-bar {
  position: fixed; left: 16px; right: 16px; bottom: 14px; z-index: 100;
  height: var(--player-h);
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 260px 1fr 260px;
  align-items: center;
  padding: 0 18px;
  gap: 16px;
  transform: translateY(140%);
  transition: transform 0.3s ease;
}
.player-bar.visible { transform: translateY(0); }
.player-track { display: flex; align-items: center; gap: 12px; min-width: 0; }
.player-cover { width: 56px; height: 56px; border-radius: 10px; overflow: hidden; background: rgba(255,255,255,0.08); flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.player-cover img { width: 100%; height: 100%; object-fit: cover; }
.player-meta { min-width: 0; }
.player-title { font-weight: 700; font-size: 0.88rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.player-sub { font-size: 0.76rem; color: rgba(255,255,255,0.55); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.player-center { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.player-controls { display: flex; align-items: center; gap: 18px; }
.player-controls button { background: none; border: none; color: #fff; cursor: pointer; font-size: 1rem; opacity: 0.85; }
.player-controls button:hover { opacity: 1; }
.player-controls .play-pause {
  width: 38px; height: 38px; border-radius: 50%; background: var(--accent);
  display: flex; align-items: center; justify-content: center; opacity: 1;
}
.player-seek { display: flex; align-items: center; gap: 8px; width: 100%; max-width: 420px; }
.player-seek span { font-size: 0.7rem; color: rgba(255,255,255,0.55); font-variant-numeric: tabular-nums; width: 34px; }
.player-seek input[type=range] { flex: 1; }
.player-right { display: flex; align-items: center; justify-content: flex-end; gap: 14px; }
.player-right button { background: none; border: none; color: rgba(255,255,255,0.75); cursor: pointer; font-size: 1rem; }
.player-right button:hover { color: #fff; }
.player-right .vol-wrap { display: flex; align-items: center; gap: 6px; }
input[type=range] {
  -webkit-appearance: none; appearance: none; height: 4px; border-radius: 4px;
  background: rgba(255,255,255,0.2); outline: none;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 12px; height: 12px; border-radius: 50%; background: var(--accent); cursor: pointer;
}

/* ---------------------------------------------------------------- forms */
.form-card { background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 700; font-size: 0.82rem; margin-bottom: 6px; }
.form-control {
  width: 100%; padding: 10px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface-alt); font-size: 0.9rem; color: var(--ink);
  font-family: inherit;
}
select.form-control[multiple] { padding: 6px; min-height: 120px; }
.form-control:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.form-hint { font-size: 0.76rem; color: var(--ink-faint); margin-top: 4px; }
.form-error { font-size: 0.78rem; color: var(--danger); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.auth-shell { max-width: 420px; margin: 60px auto; }

/* ---------------------------------------------------------------- admin */
.admin-body { display: flex; min-height: 100vh; background: var(--bg); padding-bottom: 0; }
.admin-sidebar {
  width: 232px; flex-shrink: 0; background: var(--ink); color: #fff;
  padding: 24px 16px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.admin-sidebar .brand { color: #fff; margin-bottom: 30px; }
.admin-nav a {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.65); font-weight: 600; font-size: 0.86rem; margin-bottom: 2px;
}
.admin-nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.admin-nav a.active { background: var(--accent); color: #fff; }
.admin-main { flex: 1; padding: 30px 36px; max-width: 1240px; }
.admin-topline { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 30px; }
.kpi-card { background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 18px 20px; }
.kpi-card .kpi-label { font-size: 0.76rem; color: var(--ink-faint); font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; }
.kpi-card .kpi-value { font-family: var(--font-display); font-size: 1.9rem; font-weight: 700; margin-top: 4px; }
.panel { background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 24px; margin-bottom: 24px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }

table.data-table { width: 100%; border-collapse: collapse; }
table.data-table th { text-align: left; font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-faint); padding: 10px 12px; border-bottom: 1px solid var(--border); }
table.data-table td { padding: 12px; border-bottom: 1px solid var(--border-soft); font-size: 0.86rem; vertical-align: middle; }
table.data-table tr:hover td { background: var(--surface-alt); }
.status-badge { padding: 3px 10px; border-radius: var(--radius-pill); font-size: 0.72rem; font-weight: 700; }
.status-published { background: var(--teal-soft); color: var(--teal); }
.status-processing { background: #fff2d8; color: var(--gold); }
.status-failed { background: #fbe1dc; color: var(--danger); }
.row-actions { display: flex; gap: 8px; }

.leaderboard { list-style: none; margin: 0; padding: 0; }
.leaderboard li { display: flex; align-items: center; justify-content: space-between; padding: 9px 0; border-bottom: 1px solid var(--border-soft); font-size: 0.86rem; }
.leaderboard li:last-child { border-bottom: none; }
.leaderboard .rank { color: var(--ink-faint); width: 22px; display: inline-block; font-variant-numeric: tabular-nums; }
.leaderboard .plays { font-weight: 700; color: var(--teal); font-variant-numeric: tabular-nums; }

.upload-drop {
  border: 2px dashed var(--border); border-radius: var(--radius); padding: 28px; text-align: center; cursor: pointer;
  background: var(--surface-alt);
}
.upload-drop:hover { border-color: var(--accent); }
.upload-progress { height: 8px; border-radius: 6px; background: var(--border-soft); overflow: hidden; margin-top: 10px; }
.upload-progress-bar { height: 100%; background: var(--accent); width: 0%; transition: width 0.2s ease; }

.alert { padding: 12px 18px; border-radius: var(--radius-sm); font-size: 0.86rem; margin-bottom: 18px; }
.alert-success { background: var(--teal-soft); color: var(--teal); }
.alert-error { background: #fbe1dc; color: var(--danger); }

.empty-state { text-align: center; padding: 60px 20px; color: var(--ink-faint); }
.empty-state .icon { font-size: 2.4rem; margin-bottom: 12px; }

footer.site-footer { padding: 40px 0 24px; text-align: center; color: var(--ink-faint); font-size: 0.8rem; }

.pagination { display: flex; gap: 6px; margin-top: 24px; flex-wrap: wrap; }
.pagination a, .pagination span { padding: 7px 13px; border-radius: var(--radius-sm); border: 1px solid var(--border); font-size: 0.82rem; }
.pagination a:hover { background: var(--surface); }
.pagination .active { background: var(--ink); color: #fff; border-color: var(--ink); }

@media (max-width: 900px) {
  .player-bar { grid-template-columns: 1fr auto; left: 8px; right: 8px; }
  .player-center { display: none; }
  .form-row { grid-template-columns: 1fr; }

  .admin-body { flex-direction: column; }
  .admin-sidebar {
    width: 100%; height: auto; position: static; padding: 12px 16px;
    display: flex; align-items: center; flex-wrap: wrap; gap: 10px 16px;
  }
  .admin-sidebar .brand { margin-bottom: 0; flex-shrink: 0; }
  .admin-sidebar > div:last-child {
    margin-top: 0 !important; padding-top: 0 !important; border-top: none !important;
    display: flex; align-items: center; flex-shrink: 0; margin-left: auto;
  }
  .admin-sidebar > div:last-child a { margin-bottom: 0 !important; }
  .admin-sidebar > div:last-child form { display: inline; }
  .admin-nav {
    order: 3; width: 100%; display: flex; overflow-x: auto; gap: 2px;
    -ms-overflow-style: none; scrollbar-width: none;
  }
  .admin-nav::-webkit-scrollbar { display: none; }
  .admin-nav a { white-space: nowrap; margin-bottom: 0; padding: 8px 12px; font-size: 0.8rem; }
  .admin-main { padding: 20px 16px; }
}

@media (max-width: 640px) {
  body { overflow-x: hidden; }
  .topbar { height: auto; padding: 10px 0; }
  .topbar-inner { flex-wrap: wrap; gap: 8px; padding: 0 16px; }
  .search-form { display: none; }
  .nav-links {
    order: 3; width: 100%; overflow-x: auto; gap: 2px;
    -ms-overflow-style: none; scrollbar-width: none;
  }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a { white-space: nowrap; padding: 7px 12px; font-size: 0.82rem; }
  .mobile-only-link { display: inline-flex; }
  .nav-actions { gap: 6px; }
  .nav-actions .btn-sm { padding: 7px 12px; font-size: 0.76rem; }
  .container { padding: 0 16px; }
  h1 { font-size: 1.8rem; }
  .hero { padding: 28px 0 24px; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}