:root {
  --bg: #090d12;
  --bg-deep: #05070b;
  --panel: rgba(14, 20, 28, 0.82);
  --panel-strong: rgba(20, 28, 38, 0.94);
  --line: rgba(137, 165, 196, 0.18);
  --text: #edf3ff;
  --muted: #94a5bf;
  --accent: #6ee7c8;
  --accent-strong: #2bc7a0;
  --accent-warm: #f1a56b;
  --shadow: 0 22px 55px rgba(0, 0, 0, 0.38);
  --danger: #e05555;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Bahnschrift, "Trebuchet MS", "Segoe UI Variable", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(43, 199, 160, 0.14), transparent 24%),
    radial-gradient(circle at top right, rgba(241, 165, 107, 0.12), transparent 22%),
    linear-gradient(180deg, #101720 0%, var(--bg) 42%, var(--bg-deep) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.9), transparent 95%);
}

.page-shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 0.8fr);
  gap: 20px;
  margin-bottom: 28px;
}

.hero-copy, .hero-panel, .song-card {
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.hero-copy {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: linear-gradient(160deg, rgba(16,23,32,0.88), rgba(8,11,16,0.78));
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.72rem;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 4rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
}

.hero-text {
  max-width: 60ch;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}

.hero-panel {
  display: grid;
  gap: 16px;
  align-content: start;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(14,19,26,0.92), rgba(7,10,14,0.86));
  box-shadow: var(--shadow);
}

.stat {
  padding: 18px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.06);
}

.stat-label {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 6px;
}

.stat strong {
  display: block;
  font-size: 1.5rem;
  line-height: 1.2;
}

.volume-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#global-volume {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}

#global-volume-label {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 700;
}

.admin-login-trigger {
  width: 100%;
  text-align: center;
}

.category-section {
  margin-bottom: 36px;
}

.category-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  padding: 16px 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
  backdrop-filter: blur(14px);
}

.category-header:hover {
  border-color: rgba(110, 231, 200, 0.34);
}

.category-header h2 {
  margin: 0;
  font-size: 1.4rem;
  flex: 1;
}

.category-arrow {
  font-size: 0.85rem;
  color: var(--accent);
  transition: transform 220ms ease;
  user-select: none;
  flex-shrink: 0;
}

.category-count {
  color: var(--muted);
  font-size: 0.9rem;
}

.category-grid-collapsed {
  display: none !important;
}

.category-toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.song-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.song-card {
  position: relative;
  overflow: hidden;
  padding: 20px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(18,25,35,0.96), rgba(9,12,17,0.9)),
    radial-gradient(circle at top right, rgba(110,231,200,0.16), transparent 38%);
  box-shadow: var(--shadow);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
  animation: rise-in 500ms ease both;
}

.song-card:hover {
  transform: translateY(-4px);
  border-color: rgba(110,231,200,0.34);
  box-shadow: 0 28px 65px rgba(0,0,0,0.46);
}

.song-card.is-playing {
  border-color: rgba(110,231,200,0.55);
}

.song-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.song-index, .status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border-radius: 999px;
  padding: 0 12px;
  font-size: 0.8rem;
}

.song-index {
  margin: 0;
  color: var(--muted);
  background: rgba(255,255,255,0.04);
}

.song-title {
  margin: 0 0 10px;
  font-size: 1.18rem;
  line-height: 1.25;
}

.song-file {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
  word-break: break-word;
}

.control-row {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.seek-wrap { margin-top: 4px; }

.seek-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.seek-label, .seek-time { font-size: 0.82rem; }
.seek-label { color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.seek-time { color: var(--text); }

.seek-slider {
  width: 100%;
  margin: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.status-row {
  display: flex;
  justify-content: flex-start;
  margin-top: 8px;
}

.status-pill {
  color: var(--muted);
  background: rgba(255,255,255,0.05);
}

.song-card.is-playing .status-pill {
  color: #06231d;
  background: linear-gradient(135deg, var(--accent), #8ff2d8);
}

.admin-card-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.admin-card-actions button {
  font-size: 0.82rem;
  padding: 8px 12px;
  border-radius: 12px;
}

.rename-song-btn {
  background: linear-gradient(135deg, rgba(110,231,200,0.15), rgba(110,231,200,0.07));
  border: 1px solid rgba(110,231,200,0.22) !important;
  color: var(--accent);
}

.delete-song-btn {
  background: linear-gradient(135deg, rgba(224,85,85,0.15), rgba(224,85,85,0.07));
  border: 1px solid rgba(224,85,85,0.22) !important;
  color: var(--danger);
}

.download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 0.9rem;
  font-family: inherit;
  font-weight: 700;
  text-decoration: none;
  color: #052235;
  background: linear-gradient(135deg, #8fd3ff, #d4f0ff);
  transition: transform 140ms ease, filter 140ms ease;
  white-space: nowrap;
}

.download-link:hover { transform: translateY(-1px); filter: brightness(1.05); }

button {
  appearance: none;
  border: 0;
  cursor: pointer;
  border-radius: 16px;
  padding: 11px 14px;
  font: inherit;
  color: var(--text);
  transition: transform 140ms ease, filter 140ms ease, background 140ms ease;
}

button:hover { transform: translateY(-1px); filter: brightness(1.05); }
button:active { transform: translateY(0); }

.play-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #06231d;
  font-weight: 700;
}

.stop-button {
  background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.05));
}

.ghost-button {
  background: linear-gradient(135deg, rgba(241,165,107,0.14), rgba(255,255,255,0.05));
  border: 1px solid rgba(241,165,107,0.12);
  padding-inline: 18px;
  white-space: nowrap;
}

.accent-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #06231d;
  font-weight: 700;
  white-space: nowrap;
}

.danger-button {
  background: linear-gradient(135deg, var(--danger), #c03030);
  color: #fff;
  font-weight: 700;
  width: 100%;
  margin-top: 8px;
}

.play-all-button {
  background: linear-gradient(135deg, var(--accent-warm), #ffd09f);
  color: #2f1606;
  font-weight: 700;
}

.random-button {
  background: linear-gradient(135deg, #8fd3ff, #d4f0ff);
  color: #052235;
  font-weight: 700;
}

.login-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5,7,11,0.82);
  backdrop-filter: blur(8px);
}

.login-box {
  background: linear-gradient(160deg, rgba(16,23,32,0.98), rgba(8,11,16,0.96));
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 36px;
  width: min(380px, calc(100vw - 40px));
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-box h2 { margin: 0 0 4px; font-size: 1.5rem; }

.login-box label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted);
}

.login-box input[type="text"],
.login-box input[type="password"] {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 14px;
  color: var(--text);
  font: inherit;
  font-size: 1rem;
  outline: none;
  transition: border-color 140ms;
}

.login-box input:focus { border-color: var(--accent); }

#login-submit {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #06231d;
  font-weight: 700;
  margin-top: 4px;
}

.login-error {
  margin: 0;
  color: var(--danger);
  font-size: 0.9rem;
}

.admin-panel {
  position: fixed;
  inset: 0;
  z-index: 190;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 24px 16px;
  background: rgba(5,7,11,0.78);
  backdrop-filter: blur(8px);
  overflow-y: auto;
}

.admin-panel-inner {
  background: linear-gradient(160deg, rgba(16,23,32,0.98), rgba(8,11,16,0.96));
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 32px;
  width: min(640px, 100%);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.admin-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.admin-panel-header h2 { margin: 0; font-size: 1.5rem; }

.admin-section {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,0.03);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-section h3 { margin: 0; font-size: 1rem; color: var(--accent); }

.admin-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.admin-row input[type="text"],
.admin-row select,
.admin-section select {
  flex: 1;
  min-width: 160px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 14px;
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
  outline: none;
}

.admin-row input[type="file"] {
  color: var(--muted);
  font: inherit;
  font-size: 0.9rem;
}

.admin-hint { margin: 0; font-size: 0.82rem; color: var(--muted); }
.upload-ok    { color: var(--accent) !important; font-weight: 700; }
.upload-error { color: var(--danger) !important; font-weight: 700; }

/* ---- Upload Progress UI ---- */
.upload-progress-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 6px 0 2px;
}

.upload-overall-row,
.upload-file-row {
  display: grid;
  grid-template-columns: minmax(80px, 1.4fr) 1fr 38px auto;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
}

.upload-overall-row {
  border-color: rgba(110,231,200,0.18);
  background: rgba(110,231,200,0.05);
}

.upload-row-name {
  font-size: 0.85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}

.upload-overall-row .upload-row-name {
  font-weight: 700;
  color: var(--accent);
}

.upload-progress-track {
  height: 8px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--line);
  overflow: hidden;
}

.upload-progress-bar {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-strong), var(--accent));
  transition: width 200ms ease;
}

.upload-bar-error {
  background: linear-gradient(90deg, #c03030, var(--danger)) !important;
}

.upload-progress-label {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 700;
  text-align: right;
  min-width: 34px;
}

.upload-row-status {
  font-size: 0.78rem;
  color: var(--muted);
  white-space: nowrap;
  text-align: right;
}

.upload-row-uploading { color: var(--accent-warm); }
.upload-row-ok        { color: var(--accent); font-weight: 700; }
.upload-row-error     { color: var(--danger); font-weight: 700; }

.upload-file-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 260px;
  overflow-y: auto;
}

.category-manage-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 220px;
  overflow-y: auto;
}

.category-manage-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255,255,255,0.03);
}

.category-manage-item span { flex: 1; font-size: 0.95rem; }

.category-manage-item button {
  font-size: 0.8rem;
  padding: 7px 12px;
  border-radius: 10px;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  font-size: 0.95rem;
}

.toggle-label input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--accent);
  cursor: pointer;
}

.hidden { display: none !important; }

audio { display: none; }

@keyframes rise-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .category-toolbar { flex-direction: column; align-items: stretch; }
}

@media (max-width: 560px) {
  .page-shell {
    width: min(100% - 20px, 1240px);
    padding-top: 20px;
  }
  .hero-copy, .hero-panel, .song-card { border-radius: 20px; }
  .control-row { flex-direction: column; }
}