*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: transparent;
  -webkit-tap-highlight-color: transparent;
  -webkit-user-select: none;
  user-select: none;
}

.stage {
  container-type: size;
  width: 100vw;
  height: 100vh;
  display: grid;
  place-items: center;
}

/* 1u = 1% of the design width, shrunk when the frame is shorter than the design ratio. */
.widget {
  --u: min(1cqw, calc(1cqh * var(--ratio)));
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: calc(var(--u) * 3);
  color: var(--text);
  font-family: var(--font);
}

.title {
  margin: 0;
  font-size: calc(var(--u) * 5);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1;
  text-align: center;
}

.celebration {
  position: absolute;
  inset: calc(var(--u) * -10);
  width: calc(100% + var(--u) * 20);
  height: calc(100% + var(--u) * 20);
  pointer-events: none;
}

/* ---------- scratch ---------- */

.hearts {
  display: flex;
  gap: calc(var(--u) * 4);
}

.heart {
  position: relative;
  width: calc(var(--u) * 27);
  aspect-ratio: 100 / 92;
}

.heart svg,
.heart canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.heart-outline {
  pointer-events: none;
}

.heart-value {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-bottom: 13%;
  font-size: calc(var(--u) * 9.5);
  font-variant-numeric: lining-nums;
  line-height: 1;
  white-space: nowrap;
}

.heart-value[data-long] {
  font-size: calc(var(--u) * 6.6);
}

.heart canvas {
  touch-action: none;
  cursor: grab;
  transition: opacity 0.6s ease;
}

.heart canvas:active {
  cursor: grabbing;
}

.heart.revealed canvas {
  opacity: 0;
  pointer-events: none;
}

.heart.revealed {
  animation: heart-pop 0.6s ease;
}

@keyframes heart-pop {
  40% { transform: scale(1.07); }
}

.hint {
  position: absolute;
  left: 32%;
  top: 30%;
  width: calc(var(--u) * 5);
  height: calc(var(--u) * 5);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 0 0 calc(var(--u) * 1) rgba(255, 255, 255, 0.35), 0 calc(var(--u) * 0.6) calc(var(--u) * 1.6) rgba(0, 0, 0, 0.25);
  pointer-events: none;
  animation: hint-scratch 1.6s ease-in-out infinite;
  transition: opacity 0.3s;
}

.hint.hidden {
  opacity: 0;
}

@keyframes hint-scratch {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(calc(var(--u) * 7), calc(var(--u) * 3)) scale(0.9); }
  50% { transform: translate(calc(var(--u) * 1), calc(var(--u) * 6)) scale(1); }
  75% { transform: translate(calc(var(--u) * 8), calc(var(--u) * 9)) scale(0.9); }
}

/* ---------- countdown ---------- */

.units {
  display: flex;
  gap: calc(var(--u) * 3);
  align-items: flex-start;
}

.unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: calc(var(--u) * 1.6);
}

.unit-number {
  position: relative;
  display: grid;
  place-items: center;
  font-size: calc(var(--u) * 9);
  line-height: 1;
  font-variant-numeric: lining-nums tabular-nums;
}

.unit-number span {
  display: block;
}

.unit-label {
  font-size: calc(var(--u) * 2.6);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.style-cards .unit-number {
  width: calc(var(--u) * 19);
  height: calc(var(--u) * 17);
  border: calc(var(--u) * 0.35) solid var(--accent);
  border-radius: calc(var(--u) * 2.4);
  background: var(--card);
  box-shadow: 0 calc(var(--u) * 0.8) calc(var(--u) * 2.4) rgba(0, 0, 0, 0.08);
}

.style-minimal .units {
  gap: calc(var(--u) * 1.5);
}

.style-minimal .unit-number {
  font-size: calc(var(--u) * 12);
  min-width: calc(var(--u) * 15);
}

.separator {
  font-size: calc(var(--u) * 10);
  line-height: 1.1;
  color: var(--accent);
  opacity: 0.6;
}

.style-hearts .unit-number {
  width: calc(var(--u) * 21);
  aspect-ratio: 100 / 92;
  padding-bottom: 13%;
  font-size: calc(var(--u) * 7.5);
}

.style-hearts .unit-number svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.style-hearts .unit-number span {
  position: relative;
}

.finished {
  font-size: calc(var(--u) * 11);
  line-height: 1.1;
  text-align: center;
}

/* ---------- locket ---------- */

/* Artwork is laid out in its own pixels: the open locket is 1162 × 800 px and spans 74u. */
.locket {
  --p: calc(var(--u) * 74 / 1162);
  --swing: 1.8s cubic-bezier(0.62, 0.02, 0.28, 1);
  perspective: calc(var(--u) * 260);
  animation: locket-light 9s ease-in-out infinite alternate;
}

/* Recoloured artwork is painted before it is shown. */
.locket.art-loading .locket-assembly {
  visibility: hidden;
}

/* While the pointer is over the locket, the light follows it instead of drifting. */
.locket.pointer-lit {
  animation: none;
}

@property --light-x {
  syntax: '<percentage>';
  inherits: true;
  initial-value: 30%;
}

@property --light-y {
  syntax: '<percentage>';
  inherits: true;
  initial-value: 25%;
}

/* Closed, the lid lies on the right heart, so the pair shifts left to keep it centred. */
.locket-assembly {
  position: relative;
  width: calc(var(--p) * 1162);
  height: calc(var(--p) * 800);
  /* Room for the bow above the bail. */
  margin-top: calc(var(--p) * 70);
  transform: translateX(calc(var(--p) * -290.5));
  transform-style: preserve-3d;
  transition: transform var(--swing);
  /* The pendulum pivots on the bail above the right heart. */
  transform-origin: calc(var(--p) * 871) calc(var(--p) * 10);
  animation: locket-breathe 6s ease-in-out infinite;
  cursor: pointer;
  outline: none;
}

.locket.open .locket-assembly {
  transform: none;
}

.locket-assembly.swaying {
  animation: locket-breathe 6s ease-in-out infinite, locket-sway 1.6s ease-out;
}

.locket-base,
.locket-lid {
  position: absolute;
  top: 0;
  width: calc(var(--p) * 581);
  height: calc(var(--p) * 800);
}

.locket-base {
  left: calc(var(--p) * 581);
}

/* The hinge is the lid's right edge, where the two halves meet. */
.locket-lid {
  left: 0;
  transform-origin: 100% 50%;
  /* Positive, so the lid swings out towards the viewer, not behind the locket. */
  transform: rotateY(180deg);
  transform-style: preserve-3d;
  transition: transform var(--swing);
}

.locket.open .locket-lid {
  transform: rotateY(0deg);
}

.locket-face {
  position: absolute;
  inset: 0;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

/* The closed front is a touch larger than an open half so it hides the base completely. */
.locket-front {
  inset: auto;
  left: calc(var(--p) * -27);
  top: calc(var(--p) * -20);
  width: calc(var(--p) * 635);
  height: calc(var(--p) * 820);
  transform: rotateY(180deg) translateZ(1px);
  /* The bail on the front artwork (x 255–445, y 0–262 of 698 × 901) is cut away so it does not swing with the lid;
     the base has its own. The outer edge reaches past the box to keep the drop shadow. */
  clip-path: polygon(-10% -10%, 36.5% -10%, 36.5% 29.1%, 63.8% 29.1%, 63.8% -10%, 110% -10%, 110% 110%, -10% 110%);
  --art: url('/assets/locket-front.webp');
}

.locket-inside {
  --art: url('/assets/locket-lid.webp');
}

.locket-base {
  --art: url('/assets/locket-base.webp');
}

/* The inside of the lid is in shadow until it swings open. */
.locket-inside::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(40, 36, 34, 0.8), rgba(40, 36, 34, 0.4));
  -webkit-mask: var(--art) center / 100% 100%;
  mask: var(--art) center / 100% 100%;
  opacity: 0.7;
  transition: opacity 1.1s ease-out 0.8s;
  pointer-events: none;
}

.locket.open .locket-inside::after {
  opacity: 0;
}

/* Glare on the metal and the photo glass. */
.locket-base::before,
.locket-face::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: radial-gradient(circle at var(--light-x) var(--light-y), rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0) 45%);
  -webkit-mask: var(--art) center / 100% 100%;
  mask: var(--art) center / 100% 100%;
  pointer-events: none;
}

.locket-base svg,
.locket-face svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 calc(var(--u) * 0.8) calc(var(--u) * 1) rgba(70, 55, 40, 0.3));
}

.locket.open .locket-photo {
  cursor: grab;
}

/* A band of light sweeps across the closed front now and then. */
.locket-shine {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255, 255, 255, 0.55) 50%, transparent 60%) no-repeat;
  background-size: 250% 100%;
  -webkit-mask: var(--art) center / 100% 100%;
  mask: var(--art) center / 100% 100%;
  animation: locket-shine 5s ease-in-out 0.6s infinite;
  pointer-events: none;
}

/* The knot sits on the bail; the bow belongs to the base, so it stays put when the lid opens. */
.locket-bow {
  position: absolute;
  left: calc(var(--p) * 675);
  top: calc(var(--p) * -77);
  width: calc(var(--p) * 400);
  transform: translateZ(3px);
  pointer-events: none;
  filter: drop-shadow(0 calc(var(--u) * 0.5) calc(var(--u) * 0.6) rgba(70, 30, 30, 0.3));
}

.locket-hint {
  font-family: 'Cormorant Garamond', serif;
  font-size: calc(var(--u) * 3.4);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: opacity 0.4s;
}

.locket.open .locket-hint {
  opacity: 0;
}

.locket-sparkle {
  position: absolute;
  width: calc(var(--u) * var(--size));
  height: calc(var(--u) * var(--size));
  opacity: 0;
  animation: locket-twinkle 3.2s ease-in-out infinite;
  pointer-events: none;
}

@keyframes locket-breathe {
  50% { translate: 0 calc(var(--u) * -0.6); }
}

@keyframes locket-sway {
  15% { rotate: 5deg; }
  38% { rotate: -3.5deg; }
  60% { rotate: 2deg; }
  80% { rotate: -0.8deg; }
}

@keyframes locket-light {
  from { --light-x: 20%; --light-y: 20%; }
  to { --light-x: 75%; --light-y: 45%; }
}

@keyframes locket-shine {
  0% { background-position: 100% 0; }
  30%, 100% { background-position: 0 0; }
}

@keyframes locket-twinkle {
  0%, 100% { opacity: 0; transform: scale(0.4) rotate(0deg); }
  45% { opacity: 1; transform: scale(1) rotate(25deg); }
}

/* ---------- music ---------- */

.player {
  position: relative;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  color: inherit;
}

.style-vinyl .player {
  width: calc(var(--u) * 72);
  aspect-ratio: 1;
}

.progress {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.progress circle {
  fill: none;
  stroke-width: 1.4;
}

.vinyl {
  width: 88%;
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle, transparent 34%, rgba(255, 255, 255, 0.06) 35%, transparent 36%, transparent 44%, rgba(255, 255, 255, 0.06) 45%, transparent 46%, transparent 54%, rgba(255, 255, 255, 0.05) 55%, transparent 56%, transparent 64%, rgba(255, 255, 255, 0.05) 65%, transparent 66%),
    conic-gradient(from 30deg, rgba(255, 255, 255, 0.14), transparent 12%, transparent 38%, rgba(255, 255, 255, 0.1) 50%, transparent 62%, transparent 88%, rgba(255, 255, 255, 0.14)),
    radial-gradient(circle, var(--accent) 0 70%, color-mix(in srgb, var(--accent) 70%, black) 100%);
  box-shadow: 0 calc(var(--u) * 2) calc(var(--u) * 5) rgba(0, 0, 0, 0.25);
  animation: spin 3.6s linear infinite;
  animation-play-state: paused;
}

.playing .vinyl {
  animation-play-state: running;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.label {
  width: 44%;
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fffdf8;
  box-shadow: inset 0 0 0 calc(var(--u) * 0.8) rgba(0, 0, 0, 0.06);
}

.icon {
  width: 46%;
  height: 46%;
  color: var(--icon);
}

.style-vinyl .player > .vinyl,
.style-vinyl .player > .icon {
  grid-area: 1 / 1;
}

/* Positioned so it paints above the transformed (spinning) record. */
.style-vinyl .player > .icon {
  position: relative;
  width: 18%;
  height: 18%;
  pointer-events: none;
}

.style-button .player {
  width: calc(var(--u) * 46);
  aspect-ratio: 1;
  border-radius: 50%;
  background: #fffdf8;
  border: calc(var(--u) * 1.2) solid var(--accent);
  box-shadow: 0 calc(var(--u) * 2) calc(var(--u) * 5) rgba(0, 0, 0, 0.18);
}

.style-button .icon {
  width: 42%;
  height: 42%;
}

.bars {
  display: flex;
  align-items: flex-end;
  gap: calc(var(--u) * 1.2);
  height: calc(var(--u) * 7);
}

.bars span {
  width: calc(var(--u) * 1.6);
  height: 30%;
  border-radius: calc(var(--u) * 1);
  background: var(--accent);
  transition: height 0.3s;
}

.playing .bars span {
  animation: bar 0.9s ease-in-out infinite;
}

.bars span:nth-child(2) { animation-delay: -0.3s; }
.bars span:nth-child(3) { animation-delay: -0.6s; }
.bars span:nth-child(4) { animation-delay: -0.15s; }

@keyframes bar {
  0%, 100% { height: 25%; }
  50% { height: 100%; }
}

.track {
  text-align: center;
  line-height: 1.2;
}

.track-title {
  font-size: calc(var(--u) * 6.5);
}

.track-artist {
  font-size: calc(var(--u) * 4.2);
  opacity: 0.75;
  letter-spacing: 0.06em;
}

.empty-note {
  font-family: Montserrat, sans-serif;
  font-size: calc(var(--u) * 3.6);
  opacity: 0.7;
}

.message {
  font-family: Montserrat, sans-serif;
  font-size: 14px;
  color: #6b1d2a;
}

@media (prefers-reduced-motion: reduce) {
  .hint,
  .vinyl,
  .heart.revealed,
  .locket,
  .locket-assembly,
  .locket-assembly.swaying,
  .locket-sparkle,
  .locket-shine {
    animation: none;
  }
}