:root {
  --bg: #f4d35e;          /* mustard */
  --bg-dot: #e9b93c;
  --ink: #2b1d0e;
  --tomato: #e4572e;
  --teal: #17bebb;
  --cream: #fff8e7;
  --gingham: rgba(228, 87, 46, 0.55);
  --night: #14123a;
  --night-2: #2a1b5c;
  --star: #fff3b0;
  --violet: #b388ff;
  --shadow: #2b1d0e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #2a1a38;
    --bg-dot: #3b2650;
    --ink: #2b1d0e;
    --shadow: #0d0614;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background-color: var(--bg);
  background-image: radial-gradient(var(--bg-dot) 2px, transparent 2.5px);
  background-size: 22px 22px;
  color: var(--ink);
  font: 17px/1.45 "Courier Prime", "Courier New", monospace;
  padding-bottom: 130px; /* room for the player bar */
  overflow-x: hidden;
}

header, main {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ---------- birthday banner ---------- */

.birthday-banner {
  --zig: 10px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  padding: 14px 16px calc(14px + var(--zig));
  background: var(--tomato);
  border-top: 4px solid var(--ink);
  /* zigzag bottom edge, like a party pennant */
  clip-path: polygon(
    0 0, 100% 0, 100% calc(100% - var(--zig)),
    97.5% 100%, 95% calc(100% - var(--zig)), 92.5% 100%, 90% calc(100% - var(--zig)),
    87.5% 100%, 85% calc(100% - var(--zig)), 82.5% 100%, 80% calc(100% - var(--zig)),
    77.5% 100%, 75% calc(100% - var(--zig)), 72.5% 100%, 70% calc(100% - var(--zig)),
    67.5% 100%, 65% calc(100% - var(--zig)), 62.5% 100%, 60% calc(100% - var(--zig)),
    57.5% 100%, 55% calc(100% - var(--zig)), 52.5% 100%, 50% calc(100% - var(--zig)),
    47.5% 100%, 45% calc(100% - var(--zig)), 42.5% 100%, 40% calc(100% - var(--zig)),
    37.5% 100%, 35% calc(100% - var(--zig)), 32.5% 100%, 30% calc(100% - var(--zig)),
    27.5% 100%, 25% calc(100% - var(--zig)), 22.5% 100%, 20% calc(100% - var(--zig)),
    17.5% 100%, 15% calc(100% - var(--zig)), 12.5% 100%, 10% calc(100% - var(--zig)),
    7.5% 100%, 5% calc(100% - var(--zig)), 2.5% 100%, 0 calc(100% - var(--zig))
  );
}

.birthday-banner p {
  margin: 0;
  min-width: 0;
  font-family: "Shrikhand", Georgia, serif;
  font-size: clamp(1.4rem, 6vw, 2.6rem);
  line-height: 1.1;
  text-align: center;
  color: var(--cream);
  text-shadow: 3px 3px 0 var(--shadow);
}

.birthday-banner .confetti {
  font-size: clamp(1.2rem, 5vw, 2rem);
  color: var(--star);
  text-shadow: 2px 2px 0 var(--shadow);
  animation: spin 8s linear infinite;
}

.birthday-banner .confetti:last-child { animation-direction: reverse; }

@media (prefers-reduced-motion: reduce) {
  .birthday-banner .confetti { animation: none; }
}

/* ---------- header ---------- */

header {
  position: relative;
  padding-top: 48px;
  padding-bottom: 32px;
  text-align: center;
}

h1 {
  font-family: "Shrikhand", Georgia, serif;
  font-weight: 400;
  font-size: clamp(5rem, 22vw, 10rem);
  line-height: 1;
  margin: 0;
  color: var(--tomato);
  letter-spacing: 0.02em;
  text-shadow: 4px 4px 0 var(--cream), 9px 9px 0 var(--shadow);
  transform: rotate(-4deg);
  display: inline-block;
  animation: wobble 6s ease-in-out infinite;
}

@keyframes wobble {
  0%, 100% { transform: rotate(-4deg); }
  50% { transform: rotate(-1deg) scale(1.03); }
}

/* ---------- album cards (shared) ---------- */

.album {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 32px;
  padding: 32px;
  margin: 48px 0;
  border: 3px solid var(--shadow);
  box-shadow: 10px 10px 0 var(--shadow);
  position: relative;
}
.album:nth-child(odd) { transform: rotate(-0.8deg); }
.album:nth-child(even) { transform: rotate(0.8deg); }

.cover {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border: 3px solid var(--shadow);
  transform: rotate(-3deg);
}

.cover.art { position: relative; overflow: hidden; }

.info { min-width: 0; } /* let long titles wrap instead of widening the card */

.kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-size: 0.75rem;
  font-weight: bold;
}

h2 {
  margin: 2px 0 0;
  font-family: "Shrikhand", Georgia, serif;
  font-weight: 400;
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1.1;
}

.meta { margin: 4px 0 16px; font-size: 0.9rem; opacity: 0.75; }
.desc { margin: 0 0 16px; }

.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 22px; }

.btn {
  font: inherit;
  font-weight: bold;
  font-size: 0.95rem;
  padding: 9px 16px;
  border: 3px solid var(--shadow);
  box-shadow: 4px 4px 0 var(--shadow);
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.1s, box-shadow 0.1s;
}
.btn:hover { transform: translate(-2px, -2px) rotate(-1deg); box-shadow: 6px 6px 0 var(--shadow); }
.btn:active { transform: translate(3px, 3px); box-shadow: 1px 1px 0 var(--shadow); }

.tracks { list-style: none; padding: 0; margin: 0; counter-reset: track; }

.tracks li { counter-increment: track; }

.track {
  display: flex;
  align-items: baseline;
  gap: 8px;
  width: 100%;
  padding: 6px 4px;
  font: inherit;
  color: inherit;
  text-align: left;
  background: transparent;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}
.track:hover { background: rgba(127, 127, 127, 0.12); }

.track-title { min-width: 0; overflow-wrap: anywhere; }
.track-title::before { content: counter(track, decimal-leading-zero) "  "; white-space: pre; opacity: 0.5; }

.leader { flex: 1; min-width: 16px; border-bottom: 2px dotted currentColor; opacity: 0.4; transform: translateY(-4px); }
.length { font-variant-numeric: tabular-nums; font-weight: bold; }

.play {
  flex: none;
  align-self: center;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid currentColor;
  font-size: 0.7rem;
  padding-left: 2px;
  transition: transform 0.15s;
}
.track:hover .play { transform: scale(1.2) rotate(-12deg); }

.tracks li.active .track-title { font-weight: bold; }
.tracks li.active .play { animation: bounce 0.6s ease-in-out infinite alternate; }

@keyframes bounce { to { transform: translateY(-4px) rotate(-10deg); } }

/* ---------- theme: diner ---------- */

.theme-diner {
  background:
    linear-gradient(var(--cream), var(--cream)) padding-box,
    repeating-conic-gradient(var(--gingham) 0 25%, transparent 0 50%) 0 0 / 24px 24px border-box,
    var(--cream);
  border: 14px solid transparent;
  outline: 3px solid var(--shadow);
  box-shadow: 10px 10px 0 var(--shadow);
}
.theme-diner .kicker { color: var(--tomato); }
.theme-diner h2 { color: var(--tomato); text-shadow: 3px 3px 0 var(--bg); }
.theme-diner .btn { background: var(--tomato); color: var(--cream); }
.theme-diner .tracks li { border-bottom: 1px dashed rgba(43, 29, 14, 0.2); }
.theme-diner .length { color: var(--tomato); }
.theme-diner .track:hover .play, .theme-diner li.active .play { background: var(--tomato); color: var(--cream); border-color: var(--tomato); }
.theme-diner li.active .track-title { color: var(--tomato); }

/* sunny-side-up egg on a plate, on a gingham tablecloth */
.theme-diner .cover.art {
  background: repeating-conic-gradient(var(--gingham) 0 25%, var(--cream) 0 50%) 0 0 / 34px 34px;
}
.theme-diner .cover.art::before { /* plate */
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  background: radial-gradient(circle, #fff 55%, #e8e2d4 56%, #fff 62%);
  border: 3px solid var(--shadow);
  box-shadow: 4px 4px 0 var(--shadow);
}
.theme-diner .cover.art::after { /* egg white */
  content: "";
  position: absolute;
  left: 28%;
  top: 30%;
  width: 44%;
  height: 38%;
  background: #fffdf6;
  border: 2px solid #e9dfc6;
  border-radius: 58% 42% 55% 45% / 50% 60% 40% 50%;
}
.theme-diner .cover.art span { /* yolk */
  position: absolute;
  left: 42%;
  top: 40%;
  width: 17%;
  height: 17%;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #ffe680, #f5a623 60%, #e08a00);
  z-index: 1;
  animation: jiggle 2.5s ease-in-out infinite;
}
@keyframes jiggle { 50% { transform: scale(1.08, 0.94); } }

/* ---------- theme: space ---------- */

.theme-space {
  color: var(--star);
  font-family: "Space Mono", monospace;
  font-size: 0.95rem;
  background:
    radial-gradient(1.5px 1.5px at 20px 30px, #fff 50%, transparent),
    radial-gradient(1px 1px at 90px 80px, #fff 50%, transparent),
    radial-gradient(2px 2px at 160px 20px, var(--star) 50%, transparent),
    radial-gradient(1px 1px at 130px 140px, #fff 50%, transparent),
    radial-gradient(1.5px 1.5px at 40px 160px, var(--violet) 50%, transparent),
    linear-gradient(160deg, var(--night), var(--night-2));
  background-size: 200px 200px, 200px 200px, 200px 200px, 200px 200px, 200px 200px, auto;
  border-radius: 28px;
}
.theme-space .kicker { color: var(--violet); }
.theme-space h2 { color: var(--star); text-shadow: 0 0 18px rgba(255, 243, 176, 0.55), 3px 3px 0 var(--violet); }
.theme-space .btn { background: var(--violet); color: var(--night); border-radius: 999px; }
.theme-space .btn, .theme-space .cover { border-color: var(--star); }
.theme-space .play { border-radius: 4px; transform: rotate(45deg); }
.theme-space .track:hover .play { transform: rotate(45deg) scale(1.2); }
.theme-space .tracks li.active .play { animation: twinkle 0.8s ease-in-out infinite alternate; background: var(--star); color: var(--night); }
.theme-space .play::before { content: ""; }
.theme-space .play { font-size: 0; }
.theme-space .play::after { content: "✦"; font-size: 0.8rem; display: inline-block; transform: rotate(-45deg); }
.theme-space li.active .track-title { color: #fff; text-shadow: 0 0 10px var(--star); }

@keyframes twinkle { to { transform: rotate(45deg) scale(1.25); box-shadow: 0 0 14px var(--star); } }

/* crescent moon among the stars */
.theme-space .cover.art {
  background: radial-gradient(circle at 70% 75%, var(--night-2), var(--night) 70%);
  border-radius: 50%;
}
.theme-space .cover.art::before { /* moon */
  content: "";
  position: absolute;
  left: 22%;
  top: 18%;
  width: 46%;
  height: 46%;
  border-radius: 50%;
  box-shadow: 14px 10px 0 0 var(--star);
  transform: rotate(-20deg);
  animation: float 5s ease-in-out infinite;
}
.theme-space .cover.art span { /* a few stars */
  position: absolute;
  inset: 0;
  background:
    radial-gradient(2px 2px at 20% 70%, #fff 50%, transparent),
    radial-gradient(2px 2px at 80% 20%, #fff 50%, transparent),
    radial-gradient(3px 3px at 60% 45%, var(--star) 50%, transparent),
    radial-gradient(1.5px 1.5px at 35% 88%, #fff 50%, transparent);
}
@keyframes float { 50% { transform: rotate(-20deg) translateY(-6px); } }

/* ---------- player ---------- */

#player {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: var(--cream);
  border-top: 3px solid var(--shadow);
  box-shadow: 0 -5px 0 var(--tomato);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 16px;
}
#player[hidden] { display: none; }

.record {
  flex: none;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--tomato) 0 17%, var(--cream) 18% 21%, transparent 22%),
    repeating-radial-gradient(circle, #1a1a1a 0 2px, #333 3px 4px);
  border: 2px solid var(--shadow);
  animation: spin 1.8s linear infinite paused;
}
#player.spinning .record { animation-play-state: running; }
@keyframes spin { to { transform: rotate(360deg); } }

.now-playing { min-width: 0; flex: 0 1 300px; }
.np-label { display: block; font-size: 0.7rem; color: var(--tomato); text-transform: uppercase; letter-spacing: 0.2em; font-weight: bold; }
#np-title { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: bold; }
#audio { flex: 1; min-width: 0; }

.viz-toggle {
  flex: none;
  font: inherit;
  font-weight: bold;
  font-size: 0.85rem;
  padding: 8px 12px;
  background: var(--night);
  color: #39ff14;
  border: 3px solid var(--shadow);
  box-shadow: 3px 3px 0 var(--shadow);
  cursor: pointer;
  text-shadow: 0 0 6px #39ff14;
}
.viz-toggle:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--shadow); }

/* ---------- visualizer ---------- */

#viz {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: #000;
  cursor: crosshair;
}
#viz[hidden] { display: none; }
#viz canvas { width: 100%; height: 100%; display: block; image-rendering: pixelated; }
#viz.idle { cursor: none; }
.viz-flash { position: absolute; inset: 0; background: #fff; opacity: 0; pointer-events: none; }

.viz-label {
  position: absolute;
  left: 24px;
  bottom: 24px;
  font-family: "Space Mono", monospace;
  color: #39ff14;
  text-shadow: 0 0 8px #39ff14;
  opacity: 0;
  transition: opacity 0.6s;
  pointer-events: none;
}
.viz-label.show { opacity: 1; }
.viz-label strong { display: block; font-size: 1.4rem; }
.viz-label span { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.15em; }

.viz-close, .viz-hint { transition: opacity 0.4s; }
#viz.idle .viz-close, #viz.idle .viz-hint { opacity: 0; }

.viz-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  font-size: 1.1rem;
  color: #39ff14;
  background: rgba(0, 0, 0, 0.5);
  border: 2px solid #39ff14;
  cursor: pointer;
}
.viz-hint {
  position: absolute;
  top: 16px;
  left: 24px;
  margin: 0;
  font-family: "Space Mono", monospace;
  font-size: 0.75rem;
  color: rgba(57, 255, 20, 0.7);
}

/* ---------- small screens ---------- */

@media (max-width: 680px) {
  .album { grid-template-columns: 1fr; gap: 20px; padding: 18px; }
  .theme-diner { border-width: 10px; }
  .album:nth-child(odd), .album:nth-child(even) { transform: none; }
  .cover { max-width: 220px; margin: 0 auto; }
  .track { font-size: 0.9rem; gap: 6px; }
  .track-title::before { content: none; }
  .leader { min-width: 6px; }
  #player { flex-wrap: wrap; gap: 8px 12px; }
  #audio { flex-basis: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}