:root {
  --bg-deep: #0d0221;
  --bg-card: #1a0f3a;
  --bg-card-light: #2a1959;
  --text: #fffefb;
  --text-dim: #b8b3d4;
  --accent-red: #ff3864;
  --accent-blue: #29adff;
  --accent-yellow: #fee761;
  --accent-green: #00e436;
  --accent-pink: #ff77a8;
  --accent-purple: #c77dff;
  --border: #4a3a8a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg-deep); }

body {
  font-family: 'VT323', monospace;
  background: var(--bg-deep);
  background-image:
    radial-gradient(circle at 18% 25%, rgba(255, 56, 100, 0.10) 0%, transparent 45%),
    radial-gradient(circle at 82% 75%, rgba(41, 173, 255, 0.10) 0%, transparent 45%),
    radial-gradient(circle at 50% 100%, rgba(255, 119, 168, 0.07) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  font-size: 20px;
  line-height: 1.45;
  padding: 28px 20px;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.07),
    rgba(0, 0, 0, 0.07) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
  z-index: 1000;
}

.container { max-width: 820px; margin: 0 auto; position: relative; }

header { text-align: center; padding: 32px 8px 28px; }

h1 {
  font-family: 'Press Start 2P', monospace;
  font-size: 30px;
  color: var(--accent-yellow);
  text-shadow:
    3px 3px 0 var(--accent-red),
    6px 6px 0 rgba(255, 56, 100, 0.3);
  line-height: 1.5;
  margin-bottom: 18px;
  letter-spacing: 2px;
}

.subtitle {
  color: var(--text-dim);
  font-size: 22px;
  max-width: 560px;
  margin: 0 auto;
}

.subtitle .hl { color: var(--accent-pink); }

.heart { display: inline-block; animation: bounce 1.5s infinite; color: var(--accent-red); }
@keyframes bounce {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-3px) scale(1.1); }
}

.backup-bar {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin: 16px auto 24px;
  flex-wrap: wrap;
}

.pixel-card {
  background: var(--bg-card);
  padding: 28px 24px;
  margin-bottom: 22px;
  position: relative;
  box-shadow:
    0 0 0 3px var(--border),
    inset 2px 2px 0 0 rgba(255,255,255,0.04),
    inset -2px -2px 0 0 rgba(0,0,0,0.4),
    8px 8px 0 0 rgba(0,0,0,0.5);
}

.form-section h2 {
  font-family: 'Press Start 2P', monospace;
  font-size: 13px;
  color: var(--accent-blue);
  margin-bottom: 18px;
  letter-spacing: 1.5px;
}

label {
  display: block;
  font-family: 'Press Start 2P', monospace;
  font-size: 9px;
  color: var(--accent-yellow);
  margin: 16px 0 8px;
  letter-spacing: 1.5px;
}

.form-section > label:first-of-type { margin-top: 0; }

input[type="text"], textarea {
  width: 100%;
  background: var(--bg-deep);
  border: 2px solid var(--border);
  color: var(--text);
  font-family: 'VT323', monospace;
  font-size: 20px;
  padding: 10px 12px;
  outline: none;
  transition: border-color 0.15s, background 0.15s;
}

input[type="text"]:focus, textarea:focus {
  border-color: var(--accent-pink);
  background: #18093a;
}

textarea { min-height: 88px; resize: vertical; }

.btn {
  font-family: 'Press Start 2P', monospace;
  font-size: 12px;
  padding: 14px 20px;
  background: var(--accent-red);
  color: var(--text);
  border: none;
  cursor: pointer;
  letter-spacing: 1.5px;
  transition: transform 0.08s, box-shadow 0.08s;
  box-shadow: 4px 4px 0 #000;
  margin-top: 16px;
  text-transform: uppercase;
}

.btn:hover:not(:disabled) { transform: translate(-1px, -1px); box-shadow: 5px 5px 0 #000; }
.btn:active:not(:disabled) { transform: translate(2px, 2px); box-shadow: 2px 2px 0 #000; }
.btn:disabled { background: var(--border); cursor: wait; color: var(--text-dim); }

.btn-play { background: var(--accent-green); color: #000; }
.btn-secondary { background: var(--accent-blue); color: #000; }
.btn-tertiary { background: var(--accent-purple); color: #000; }
.btn-danger { background: var(--accent-red); }
.btn-ghost { background: transparent; box-shadow: 0 0 0 2px var(--border); color: var(--text-dim); }
.btn-ghost:hover:not(:disabled) { box-shadow: 0 0 0 2px var(--accent-pink); color: var(--accent-pink); transform: none; }
.btn-ghost:active:not(:disabled) { transform: none; box-shadow: 0 0 0 2px var(--accent-pink); }

.btn-small {
  font-size: 9px;
  padding: 9px 12px;
  margin-top: 0;
  box-shadow: 3px 3px 0 #000;
}
.btn-small:hover:not(:disabled) { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 #000; }
.btn-small:active:not(:disabled) { transform: translate(1px, 1px); box-shadow: 2px 2px 0 #000; }
.btn-small.btn-ghost { box-shadow: 0 0 0 2px var(--border); }
.btn-small.btn-ghost:hover:not(:disabled) { box-shadow: 0 0 0 2px var(--accent-pink); }

.section-heading {
  font-family: 'Press Start 2P', monospace;
  font-size: 12px;
  color: var(--accent-pink);
  margin: 32px 0 18px;
  letter-spacing: 1.5px;
}

.guest-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-card-light) 100%);
  padding: 22px;
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  box-shadow:
    0 0 0 3px var(--border),
    inset 2px 2px 0 0 rgba(255,255,255,0.04),
    8px 8px 0 0 rgba(0,0,0,0.4);
  transition: box-shadow 0.2s;
}

.guest-card.playing { animation: glow-pulse 1.4s ease-in-out infinite; }

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 0 3px var(--accent-green), inset 2px 2px 0 0 rgba(255,255,255,0.04), 0 0 18px rgba(0, 228, 54, 0.35), 8px 8px 0 0 rgba(0,0,0,0.4); }
  50% { box-shadow: 0 0 0 3px var(--accent-green), inset 2px 2px 0 0 rgba(255,255,255,0.04), 0 0 32px rgba(0, 228, 54, 0.7), 8px 8px 0 0 rgba(0,0,0,0.4); }
}

.guest-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  flex-wrap: wrap;
}

.guest-left {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  flex: 1;
  min-width: 0;
}

.guest-info { flex: 1; min-width: 0; }

.avatar-wrap {
  width: 96px;
  height: 96px;        /* back to square — 24×24 sprite at 4x = 96×96, perfect fit */
  background: #000;
  border: 2px solid var(--border);
  position: relative;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.avatar-wrap canvas {
  /* width/height set explicitly by the renderer from each sprite's stored */
  /* dimensions: v4 64×64 PNG sprites fill the square frame, while legacy */
  /* hex-grid sprites (24×24 / 32×32) still render, aspect-preserved. */
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
  animation: avatar-idle 2.4s ease-in-out infinite;
}

/* Gentle idle bob on the sprite; intensifies into a glow while the jingle plays. */
@keyframes avatar-idle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-2px); }
}

.guest-card.playing .avatar-wrap canvas {
  animation: avatar-idle 1.4s ease-in-out infinite, avatar-glow-pulse 1.4s ease-in-out infinite;
}

@keyframes avatar-glow-pulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.2) drop-shadow(0 0 6px var(--accent-pink)); }
}

.avatar-wrap.loading::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent 40%, rgba(0,228,54,0.3) 50%, transparent 60%);
  background-size: 200% 200%;
  animation: shimmer 1.4s linear infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 200%; }
  100% { background-position: -100% -100%; }
}

.avatar-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
}

.avatar-controls button {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 1px 6px;
  font-family: 'Press Start 2P', monospace;
  font-size: 8px;
  cursor: pointer;
}

.avatar-controls button:hover:not(:disabled) { color: var(--accent-pink); border-color: var(--accent-pink); }
.avatar-controls button:disabled { opacity: 0.3; cursor: not-allowed; }
.avatar-controls span { font-family: 'Press Start 2P', monospace; font-size: 8px; color: var(--text-dim); }

.guest-name {
  font-family: 'Press Start 2P', monospace;
  font-size: 15px;
  color: var(--accent-yellow);
  margin-bottom: 6px;
  letter-spacing: 1px;
  word-break: break-word;
  line-height: 1.4;
}

.guest-theme { color: var(--accent-pink); font-size: 22px; font-style: italic; }
.guest-meta { color: var(--text-dim); font-size: 17px; margin-top: 4px; letter-spacing: 0.5px; }
.guest-desc { color: var(--text-dim); font-size: 17px; margin-top: 6px; font-style: italic; opacity: 0.75; }

.guest-actions { display: flex; gap: 8px; flex-shrink: 0; flex-wrap: wrap; }

.action-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.version-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'Press Start 2P', monospace;
  font-size: 9px;
  color: var(--text-dim);
  letter-spacing: 1px;
}

.version-controls button {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--text-dim);
  width: 24px;
  height: 24px;
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.version-controls button:hover:not(:disabled) { border-color: var(--accent-pink); color: var(--accent-pink); }
.version-controls button:disabled { opacity: 0.25; cursor: not-allowed; }

.piano-roll {
  background: #000;
  border: 2px solid var(--border);
  height: 96px;
  position: relative;
  overflow: hidden;
}

.note-block {
  position: absolute;
  border: 1px solid rgba(0,0,0,0.5);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.15);
}

.note-block.lead    { background: var(--accent-green); }
.note-block.harmony { background: var(--accent-blue); }
.note-block.bass    { background: var(--accent-yellow); }

.section-marker {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(255,119,168,0.25);
  pointer-events: none;
}

.section-label {
  position: absolute;
  top: 2px;
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  color: rgba(255,119,168,0.55);
  letter-spacing: 1px;
  pointer-events: none;
  padding-left: 3px;
}

.piano-roll-legend {
  position: absolute;
  bottom: 4px;
  right: 6px;
  font-size: 12px;
  color: var(--text-dim);
  display: flex;
  gap: 10px;
  pointer-events: none;
  font-family: 'VT323', monospace;
}
.piano-roll-legend span::before { content: '■ '; display: inline; }
.piano-roll-legend .lead-l { color: var(--accent-green); }
.piano-roll-legend .harm-l { color: var(--accent-blue); }
.piano-roll-legend .bass-l { color: var(--accent-yellow); }

.playhead {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent-red);
  box-shadow: 0 0 6px var(--accent-red), 0 0 12px var(--accent-red);
  pointer-events: none;
  left: 0;
  display: none;
}
.playhead.active { display: block; }

.empty-state { text-align: center; padding: 40px 24px; color: var(--text-dim); }
.empty-state-icon { font-family: 'Press Start 2P', monospace; font-size: 24px; margin-bottom: 16px; color: var(--accent-pink); letter-spacing: 4px; }
.empty-state p { font-size: 19px; }

@keyframes dots {
  0%, 20% { content: '.'; }
  40% { content: '..'; }
  60%, 100% { content: '...'; }
}
.loading::after { content: '.'; animation: dots 1.2s infinite; }

.error {
  background: rgba(255, 56, 100, 0.18);
  border-left: 4px solid var(--accent-red);
  color: var(--accent-red);
  padding: 12px;
  margin-top: 14px;
  font-size: 18px;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-green);
  color: #000;
  font-family: 'Press Start 2P', monospace;
  font-size: 11px;
  padding: 14px 20px;
  z-index: 2000;
  letter-spacing: 1.5px;
  box-shadow: 4px 4px 0 #000;
  animation: toast-in 0.3s ease-out;
}

@keyframes toast-in {
  from { transform: translate(-50%, 40px); opacity: 0; }
  to { transform: translate(-50%, 0); opacity: 1; }
}

footer { text-align: center; color: var(--text-dim); font-size: 16px; padding: 40px 16px 20px; }
footer .tag { font-family: 'Press Start 2P', monospace; font-size: 8px; letter-spacing: 2px; color: var(--border); margin-bottom: 8px; }

.coin {
  display: inline-block;
  width: 12px;
  height: 12px;
  background: var(--accent-yellow);
  box-shadow:
    -2px 0 0 var(--accent-yellow),
    2px 0 0 var(--accent-yellow),
    0 -2px 0 var(--accent-yellow),
    0 2px 0 var(--accent-yellow),
    inset -1px -1px 0 rgba(0,0,0,0.3);
  margin: 0 2px;
  vertical-align: middle;
}

@media (max-width: 600px) {
  body { padding: 16px 12px; font-size: 18px; }
  h1 { font-size: 18px; letter-spacing: 1px; }
  .subtitle { font-size: 20px; }
  .pixel-card { padding: 20px 16px; }
  .guest-card { padding: 18px 14px; }
  .btn { font-size: 11px; padding: 12px 16px; }
  .btn-small { font-size: 9px; padding: 8px 10px; }
  .guest-name { font-size: 13px; }
  .guest-left { gap: 12px; }
  .avatar-wrap { width: 72px; height: 72px; }   /* back to square */
  .guest-header { flex-direction: column; gap: 12px; }
  .guest-actions { width: 100%; }
  .action-row { flex-direction: column; align-items: stretch; }
  .action-row > div { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
}