:root {
  /* Lightened twilight palette - dusk purple instead of near-black */
  --bg-deep: #1a1838;
  --bg-night: #252150;
  --bg-twilight: #332a68;
  --bg-city: #1e1c42;
  --text-primary: #f0ecff;
  --text-secondary: #b8b0e0;
  --text-muted: #8078b8;
  --text-dim: #5a5290;
  --accent: #e8c878;
  --accent-glow: rgba(232, 200, 120, 0.15);
  --accent-bright: #f5d890;
  --flower-color: rgba(240, 220, 255, 0.08);
  --flower-accent: rgba(232, 200, 120, 0.12);
  --player-bg: rgba(40, 36, 80, 0.55);
  --player-border: rgba(160, 150, 220, 0.2);
  --player-hover: rgba(120, 110, 180, 0.15);
  --progress-bg: #3a3470;
  --progress-fill: #6a60b0;
  --font-serif: "Noto Serif SC", Georgia, serif;
  --font-mono: "Space Mono", "Courier New", monospace;
  --font-sans: "Noto Sans SC", -apple-system, sans-serif;
}

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

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  background: var(--bg-deep);
  font-family: var(--font-sans);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Starry Sky ===== */
.starfield {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.star {
  position: absolute;
  background: #fff;
  border-radius: 50%;
  opacity: 0;
  animation: twinkle var(--dur, 3s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}

@keyframes twinkle {
  0%, 100% { opacity: 0; transform: scale(0.5); }
  50% { opacity: var(--max-opacity, 0.8); transform: scale(1); }
}

.enter-page {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 50% 35%, #3d3478 0%, #2a2560 40%, #1a1838 100%);
  overflow: hidden;
}

/* ===== Flower Line Art Decorations ===== */
.flower-decor {
  position: absolute;
  pointer-events: none;
  z-index: 1;
}

.flower-tl {
  top: -20px;
  left: -30px;
  width: 280px;
  opacity: 0.5;
  animation: gentleSway 12s ease-in-out infinite alternate;
}

.flower-br {
  bottom: 80px;
  right: -40px;
  width: 240px;
  opacity: 0.4;
  transform: scaleX(-1);
  animation: gentleSway 14s ease-in-out infinite alternate;
  animation-delay: -3s;
}

.flower-tr {
  top: 10%;
  right: 5%;
  width: 120px;
  opacity: 0.25;
  animation: gentleSway 10s ease-in-out infinite alternate;
  animation-delay: -5s;
}

.flower-bl {
  bottom: 120px;
  left: 3%;
  width: 100px;
  opacity: 0.3;
  animation: gentleSway 11s ease-in-out infinite alternate;
  animation-delay: -7s;
}

@keyframes gentleSway {
  0% { transform: rotate(-2deg) translateY(0); }
  100% { transform: rotate(2deg) translateY(-5px); }
}

.flower-bl.gentle-sway {
  animation: gentleSwayBl 11s ease-in-out infinite alternate;
}

@keyframes gentleSwayBl {
  0% { transform: rotate(2deg) translateY(0); }
  100% { transform: rotate(-2deg) translateY(-5px); }
}

/* ===== Moon ===== */
.moon {
  position: absolute;
  top: 8%;
  right: 12%;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #6a5fa0 0%, #4a4280 60%, #332a68 100%);
  box-shadow: 0 0 60px rgba(180, 160, 240, 0.15), inset -8px -8px 20px rgba(0, 0, 0, 0.3);
  z-index: 2;
  opacity: 0.7;
}

/* ===== Cityscape ===== */
.cityscape {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 2;
  pointer-events: none;
  opacity: 0.8;
}

.cityscape svg {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== Content ===== */
.content {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  padding: 40px 20px;
  max-width: 560px;
  width: 100%;
  animation: fadeUp 1.2s ease-out;
}

@keyframes fadeUp {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* ===== Brand ===== */
.brand {
  text-align: center;
  margin-bottom: 36px;
  position: relative;
}

.brand-flower-left {
  position: absolute;
  left: -50px;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  opacity: 0.35;
  animation: gentleSway 8s ease-in-out infinite alternate;
}

.brand-flower-right {
  position: absolute;
  right: -50px;
  top: 50%;
  transform: translateY(-50%) scaleX(-1);
  width: 50px;
  opacity: 0.35;
  animation: gentleSwayBl 8s ease-in-out infinite alternate;
}

.title {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 16px;
  text-indent: 16px;
  line-height: 1.2;
  text-shadow: 0 0 30px rgba(232, 200, 120, 0.15);
}

.divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 12px 0 8px;
}

.divider-line {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--text-muted), transparent);
}

.divider-flower {
  width: 16px;
  height: 16px;
  opacity: 0.6;
}

.subtitle {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-secondary);
  letter-spacing: 8px;
  text-indent: 8px;
  font-weight: 400;
}

.tagline {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 2px;
  margin-top: 6px;
}

/* ===== Player ===== */
.player {
  width: 100%;
  max-width: 420px;
  background: var(--player-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--player-border);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 40px;
  transition: border-color 0.3s ease;
}

.player:hover {
  border-color: rgba(232, 200, 120, 0.25);
}

.player-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.player-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: background 0.3s;
}

.player.playing .player-indicator {
  background: var(--accent);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; box-shadow: 0 0 6px var(--accent); }
}

.player-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
  flex: 1;
}

.player-track-count {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
}

.player-track-name {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.3s;
}

.player.playing .player-track-name {
  color: var(--text-primary);
}

.player-progress {
  margin-bottom: 14px;
  cursor: pointer;
}

.progress-bar {
  height: 3px;
  background: var(--progress-bg);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--progress-fill), var(--accent));
  border-radius: 2px;
  transition: width 0.1s linear;
}

.time-display {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
}

.current-time, .duration {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-control {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
}

.btn-control:hover {
  color: var(--text-primary);
  background: var(--player-hover);
}

.btn-play {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--player-border);
  background: rgba(232, 200, 120, 0.08);
  color: var(--accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.btn-play:hover {
  background: rgba(232, 200, 120, 0.15);
  border-color: var(--accent);
  color: var(--accent-bright);
  transform: scale(1.05);
}

.btn-play:active {
  transform: scale(0.95);
}

.btn-play svg {
  pointer-events: none;
}

.volume-control {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.volume-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 60px;
  height: 3px;
  background: var(--progress-bg);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  transition: transform 0.2s;
}

.volume-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.volume-slider::-moz-range-thumb {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}

/* ===== Album Tab Bar ===== */
.album-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--player-border);
}

.album-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 10px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  color: var(--text-muted);
  font-family: var(--font-sans);
}

.album-tab:hover {
  background: var(--player-hover);
  color: var(--text-secondary);
}

.album-tab.active {
  background: rgba(232, 200, 120, 0.1);
  border-color: rgba(232, 200, 120, 0.3);
  color: var(--accent);
}

.album-tab-year {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.album-tab-name {
  font-size: 10px;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.album-tab-count {
  font-family: var(--font-mono);
  font-size: 8px;
  opacity: 0.6;
}

/* ===== Playlist ===== */
.playlist {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.playlist.expanded {
  max-height: 240px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--progress-fill) transparent;
}

.playlist.expanded::-webkit-scrollbar {
  width: 4px;
}

.playlist.expanded::-webkit-scrollbar-track {
  background: transparent;
}

.playlist.expanded::-webkit-scrollbar-thumb {
  background: var(--progress-fill);
  border-radius: 2px;
}

.playlist-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s;
}

.playlist-item:hover {
  background: var(--player-hover);
}

.playlist-item.active {
  background: rgba(232, 200, 120, 0.08);
}

.playlist-item-num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  width: 20px;
}

.playlist-item.active .playlist-item-num {
  color: var(--accent);
}

.playlist-item-name {
  font-size: 12px;
  color: var(--text-secondary);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.playlist-item.active .playlist-item-name {
  color: var(--text-primary);
}

.playlist-item-duration {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
}

/* ===== Guestbook Entry Link (replaces ENTER button) ===== */
.footer {
  text-align: center;
  width: 100%;
}

.gb-entry-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 28px;
  background: transparent;
  border: 1px solid rgba(232, 200, 120, 0.3);
  border-radius: 24px;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.4s ease;
  text-decoration: none;
  margin-bottom: 18px;
  position: relative;
  overflow: hidden;
}

.gb-entry-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--accent-glow), transparent);
  transition: left 0.6s ease;
}

.gb-entry-link:hover {
  border-color: var(--accent);
  color: var(--accent-bright);
  background: var(--accent-glow);
  box-shadow: 0 0 20px var(--accent-glow);
}

.gb-entry-link:hover::before {
  left: 100%;
}

.gb-entry-link:hover .gb-entry-arrow {
  transform: translateX(3px);
}

.gb-entry-icon {
  opacity: 0.7;
  transition: opacity 0.3s;
}

.gb-entry-link:hover .gb-entry-icon {
  opacity: 1;
}

.gb-entry-arrow {
  opacity: 0.5;
  transition: transform 0.3s ease;
}

/* ===== Footer ===== */
.copyright {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.visitor-counter {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
  opacity: 0.6;
  margin-top: 4px;
}

.counter {
  color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .title {
    font-size: 36px;
    letter-spacing: 12px;
    text-indent: 12px;
  }

  .player {
    padding: 16px 18px;
  }

  .volume-control {
    display: none;
  }

  .moon {
    width: 40px;
    height: 40px;
    top: 6%;
    right: 8%;
  }

  .flower-tl { width: 180px; }
  .flower-br { width: 150px; bottom: 60px; }
  .flower-tr, .flower-bl { display: none; }
  .brand-flower-left, .brand-flower-right { display: none; }
}

@media (max-height: 700px) {
  .content {
    padding: 20px;
  }

  .brand {
    margin-bottom: 20px;
  }

  .player {
    margin-bottom: 24px;
  }

  .title {
    font-size: 36px;
  }
}