:root {
  color-scheme: light;
  --ink: #1f2364;
  --ink-soft: #3b4d87;
  --sky: #91a9ce;
  --lilac: #a690bc;
  --paper: rgba(248, 250, 255, 0.9);
  --line: rgba(255, 255, 255, 0.58);
  --gold: #e7d39b;
  --shadow: rgba(25, 30, 76, 0.28);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  overscroll-behavior: none;
}

body {
  overflow-x: hidden;
  background:
    linear-gradient(145deg, rgba(137, 164, 206, 0.95), rgba(169, 143, 188, 0.96)),
    #91a9ce;
  color: var(--ink);
  font-family:
    "Songti SC",
    "Noto Serif SC",
    "SimSun",
    serif;
}

button {
  font: inherit;
}

.music-toggle {
  position: fixed;
  top: calc(15px + env(safe-area-inset-top));
  right: calc(14px + env(safe-area-inset-right));
  z-index: 20;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 26%, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.38) 48%, rgba(143, 167, 210, 0.46)),
    rgba(255, 255, 255, 0.42);
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, 0.72),
    0 8px 18px rgba(31, 35, 100, 0.16);
  color: var(--ink);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px) scale(0.92);
  transition:
    opacity 460ms ease,
    transform 520ms cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 300ms ease;
}

.music-toggle:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.86);
  outline-offset: 3px;
}

.music-toggle:active {
  transform: translateY(0) scale(0.96);
}

.music-symbol {
  position: relative;
  width: 16px;
  height: 18px;
  transform-origin: 50% 50%;
  animation: musicSpin 4.8s linear infinite;
  animation-play-state: paused;
}

.music-symbol::before,
.music-symbol::after,
.music-note-dot {
  position: absolute;
  display: block;
  content: "";
}

.music-symbol::before {
  left: 9px;
  top: 1px;
  width: 3px;
  height: 13px;
  border-radius: 999px;
  background: linear-gradient(180deg, #ffffff, #31448f 76%);
  box-shadow: 0 1px 2px rgba(31, 35, 100, 0.16);
}

.music-symbol::after {
  left: 10px;
  top: 1px;
  width: 7px;
  height: 4px;
  border-radius: 999px 999px 999px 0;
  background: rgba(31, 35, 100, 0.82);
  transform: rotate(16deg);
}

.music-note-dot {
  left: 3px;
  bottom: 1px;
  width: 9px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ffffff, #1f2364 72%);
  box-shadow: 0 2px 4px rgba(31, 35, 100, 0.2);
  transform: rotate(-18deg);
}

body.has-music-control .music-toggle {
  opacity: 0.88;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

body.is-music-playing .music-symbol {
  animation-play-state: running;
}

body.is-music-paused .music-toggle {
  opacity: 0.66;
}

.invitation {
  min-height: 100svh;
}

.scene {
  position: relative;
  display: grid;
  justify-items: center;
  align-content: start;
  min-height: 100svh;
  padding: max(22px, env(safe-area-inset-top)) 18px max(26px, env(safe-area-inset-bottom));
  overflow: hidden;
  isolation: isolate;
}

.scene::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0) 38%),
    radial-gradient(circle at 50% 18%, rgba(248, 250, 255, 0.22), rgba(248, 250, 255, 0) 34%),
    linear-gradient(145deg, transparent 0 54%, rgba(255, 255, 255, 0.12) 54.2%, transparent 57%),
    linear-gradient(152deg, transparent 0 63%, rgba(231, 211, 155, 0.14) 63.2%, transparent 65.2%),
    radial-gradient(circle at 18% 63%, rgba(231, 211, 155, 0.24) 0 1px, transparent 2px),
    radial-gradient(circle at 76% 72%, rgba(255, 255, 255, 0.22) 0 1px, transparent 2px),
    radial-gradient(circle at 58% 82%, rgba(231, 211, 155, 0.18) 0 1px, transparent 2px);
}

.scene::after {
  content: "";
  position: fixed;
  inset: auto 0 0;
  z-index: -1;
  height: 56%;
  background:
    linear-gradient(166deg, transparent 18%, rgba(255, 255, 255, 0.1) 18.5%, transparent 26%),
    linear-gradient(158deg, transparent 48%, rgba(255, 255, 255, 0.11) 48.4%, transparent 56%),
    radial-gradient(circle at 22% 62%, rgba(231, 211, 155, 0.34) 0 1px, transparent 2px),
    radial-gradient(circle at 90% 88%, rgba(231, 211, 155, 0.32) 0 1px, transparent 2px),
    linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(31, 35, 100, 0.12));
}

.ambient-stars {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.ambient-stars span {
  position: absolute;
  width: 7px;
  height: 7px;
  background: var(--gold);
  clip-path: polygon(50% 0, 61% 38%, 100% 50%, 61% 62%, 50% 100%, 39% 62%, 0 50%, 39% 38%);
  opacity: 0.72;
  animation: twinkle 3.8s ease-in-out infinite;
}

.ambient-stars span:nth-child(1) {
  left: 13%;
  top: 16%;
}

.ambient-stars span:nth-child(2) {
  right: 16%;
  top: 14%;
  animation-delay: 0.8s;
}

.ambient-stars span:nth-child(3) {
  left: 19%;
  top: 52%;
  animation-delay: 1.6s;
}

.ambient-stars span:nth-child(4) {
  right: 10%;
  top: 48%;
  animation-delay: 2.4s;
}

.ambient-stars span:nth-child(5) {
  left: 50%;
  top: 8%;
  width: 10px;
  height: 10px;
  background: #ffffff;
  animation-delay: 1.1s;
}

.paper-plane-layer {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.paper-plane {
  position: absolute;
  right: -12%;
  top: var(--plane-top);
  width: clamp(24px, 5.8vw, 40px);
  aspect-ratio: 1.45;
  opacity: 0;
  filter: drop-shadow(0 7px 10px rgba(31, 35, 100, 0.16));
  transform-origin: 50% 50%;
  animation: planeDrift var(--plane-duration) cubic-bezier(0.2, 0.7, 0.18, 1) infinite;
  animation-delay: var(--plane-delay);
}

.paper-plane::before {
  content: "";
  position: absolute;
  inset: 0;
  clip-path: polygon(0 50%, 100% 7%, 72% 50%, 100% 93%);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.9), rgba(220, 233, 252, 0.68) 54%, rgba(151, 178, 219, 0.48)),
    #fff;
}

.paper-plane::after {
  content: "";
  position: absolute;
  left: 29%;
  top: 44%;
  width: 52%;
  height: 32%;
  clip-path: polygon(0 20%, 100% 0, 52% 100%);
  background: linear-gradient(110deg, rgba(96, 128, 187, 0.28), rgba(255, 255, 255, 0.12));
}

.paper-trail {
  position: absolute;
  left: 78%;
  top: 49%;
  width: min(20vw, 112px);
  height: 1px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.58), rgba(255, 255, 255, 0.18) 48%, rgba(255, 255, 255, 0)),
    linear-gradient(90deg, rgba(175, 202, 238, 0.34), rgba(175, 202, 238, 0));
  opacity: 0.5;
  transform: rotate(var(--trail-rotate));
  transform-origin: left center;
}

.paper-trail::before,
.paper-trail::after {
  content: "";
  position: absolute;
  left: 10%;
  width: 62%;
  height: 1px;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0));
}

.paper-trail::before {
  top: -6px;
  transform: translateX(12px) rotate(4deg);
}

.paper-trail::after {
  top: 6px;
  transform: translateX(26px) rotate(-5deg);
}

.plane-1 {
  --plane-top: 18%;
  --plane-duration: 10.5s;
  --plane-delay: -1.2s;
  --plane-opacity: 0.52;
  --plane-mid-opacity: 0.46;
  --plane-late-opacity: 0.28;
  --plane-scale: 0.96;
  --mid-x: -46vw;
  --mid-y: -3vh;
  --end-x: -118vw;
  --end-y: 8vh;
  --start-rotate: -9deg;
  --mid-rotate: -14deg;
  --end-rotate: -6deg;
  --trail-rotate: -5deg;
}

.plane-2 {
  --plane-top: 29%;
  --plane-duration: 12.8s;
  --plane-delay: 2.4s;
  --plane-opacity: 0.34;
  --plane-mid-opacity: 0.3;
  --plane-late-opacity: 0.18;
  --plane-scale: 0.78;
  --mid-x: -42vw;
  --mid-y: 5vh;
  --end-x: -116vw;
  --end-y: -2vh;
  --start-rotate: 5deg;
  --mid-rotate: 9deg;
  --end-rotate: 2deg;
  --trail-rotate: 4deg;
}

.plane-3 {
  --plane-top: 12%;
  --plane-duration: 14s;
  --plane-delay: 5.2s;
  --plane-opacity: 0.26;
  --plane-mid-opacity: 0.22;
  --plane-late-opacity: 0.12;
  --plane-scale: 0.68;
  --mid-x: -54vw;
  --mid-y: 4vh;
  --end-x: -124vw;
  --end-y: 12vh;
  --start-rotate: -3deg;
  --mid-rotate: -1deg;
  --end-rotate: 6deg;
  --trail-rotate: 2deg;
}

.plane-4 {
  --plane-top: 46%;
  --plane-duration: 15.5s;
  --plane-delay: 1s;
  --plane-opacity: 0.22;
  --plane-mid-opacity: 0.2;
  --plane-late-opacity: 0.1;
  --plane-scale: 0.62;
  --mid-x: -48vw;
  --mid-y: -5vh;
  --end-x: -114vw;
  --end-y: -9vh;
  --start-rotate: -12deg;
  --mid-rotate: -16deg;
  --end-rotate: -11deg;
  --trail-rotate: -7deg;
}

.plane-5 {
  --plane-top: 36%;
  --plane-duration: 11.6s;
  --plane-delay: 7.2s;
  --plane-opacity: 0.3;
  --plane-mid-opacity: 0.26;
  --plane-late-opacity: 0.16;
  --plane-scale: 0.74;
  --mid-x: -50vw;
  --mid-y: -1vh;
  --end-x: -120vw;
  --end-y: 6vh;
  --start-rotate: -6deg;
  --mid-rotate: -8deg;
  --end-rotate: -2deg;
  --trail-rotate: -3deg;
}

.plane-6 {
  --plane-top: 23%;
  --plane-duration: 9.8s;
  --plane-delay: 0.15s;
  --plane-opacity: 0.6;
  --plane-mid-opacity: 0.52;
  --plane-late-opacity: 0.3;
  --plane-scale: 1.04;
  --mid-x: -38vw;
  --mid-y: -4vh;
  --end-x: -110vw;
  --end-y: 3vh;
  --start-rotate: -11deg;
  --mid-rotate: -17deg;
  --end-rotate: -8deg;
  --trail-rotate: -7deg;
}

h1,
.lead,
.album-button,
.open-cue,
.details,
.scroll-cue,
.agenda-section {
  position: relative;
  z-index: 2;
}

.eyebrow,
.lead {
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
  text-align: center;
  text-shadow: 0 1px 12px rgba(31, 35, 100, 0.2);
}

.eyebrow {
  margin-top: 4px;
  font-size: 13px;
  letter-spacing: 0;
}

h1 {
  margin: 12px 0 0;
  color: #fff;
  font-size: clamp(32px, 10vw, 52px);
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0;
  text-shadow: 0 10px 24px rgba(35, 39, 112, 0.28);
}

.lead {
  margin-top: 10px;
  font-size: clamp(16px, 4.4vw, 22px);
  line-height: 1.45;
}

.album-button {
  position: relative;
  width: min(88vw, 510px, 59svh);
  aspect-ratio: 1;
  margin-top: clamp(20px, 4svh, 36px);
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  filter: drop-shadow(0 22px 36px var(--shadow));
  transform: translateY(0) scale(0.98);
  transition: transform 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.album-button:focus-visible {
  outline: none;
}

.album-cover,
.record-spin,
.shine {
  position: absolute;
  inset: 0;
}

.album-cover,
.record-spin img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
}

.record-spin {
  z-index: 2;
  opacity: 1;
  transform: scale(0.96);
  animation: spin 18s linear infinite;
  animation-play-state: paused;
  filter: drop-shadow(0 16px 22px rgba(31, 35, 100, 0.22));
  transition:
    opacity 600ms ease,
    transform 900ms cubic-bezier(0.16, 1, 0.3, 1),
    filter 900ms ease;
}

.cover-closed {
  z-index: 4;
  opacity: 1;
  transform: scale(1);
  filter: drop-shadow(0 10px 18px rgba(31, 35, 100, 0.12));
  transition:
    opacity 520ms ease 1450ms,
    transform 1900ms cubic-bezier(0.2, 0.8, 0.2, 1),
    filter 1200ms ease;
}

.tonearm {
  position: absolute;
  top: -2%;
  right: -1%;
  z-index: 6;
  width: 50%;
  height: 48%;
  opacity: 0;
  pointer-events: none;
  transform: rotate(-25deg) translate(8%, -6%);
  transform-origin: 88% 17%;
  filter: drop-shadow(0 10px 13px rgba(31, 35, 100, 0.22));
  transition:
    opacity 650ms ease,
    transform 1500ms cubic-bezier(0.16, 1, 0.3, 1),
    filter 1500ms ease;
}

.tonearm-pivot {
  position: absolute;
  top: 3%;
  right: 1%;
  width: 24%;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 32%, rgba(255, 255, 255, 0.95), rgba(215, 229, 250, 0.86) 24%, rgba(79, 106, 166, 0.62) 58%, rgba(31, 35, 100, 0.78) 100%);
  box-shadow:
    inset 0 1px 5px rgba(255, 255, 255, 0.58),
    0 8px 18px rgba(31, 35, 100, 0.2);
}

.tonearm-pivot::after {
  content: "";
  position: absolute;
  inset: 28%;
  border-radius: 50%;
  background: rgba(31, 35, 100, 0.58);
  box-shadow: inset 0 1px 3px rgba(255, 255, 255, 0.52);
}

.tonearm-arm {
  position: absolute;
  top: 17%;
  right: 12%;
  width: 95%;
  height: 4.5%;
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(185, 207, 239, 0.92) 46%, rgba(52, 83, 151, 0.72));
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, 0.86),
    inset 0 -1px 1px rgba(31, 35, 100, 0.28),
    0 5px 11px rgba(31, 35, 100, 0.18);
  transform: rotate(-47deg);
  transform-origin: right center;
}

.tonearm-arm::after {
  content: "";
  position: absolute;
  inset: 22% 7% auto 8%;
  height: 18%;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
}

.tonearm-head {
  position: absolute;
  top: 82%;
  left: 16%;
  width: 19%;
  height: 12%;
  border-radius: 4px 4px 7px 7px;
  background:
    linear-gradient(135deg, rgba(57, 74, 145, 0.96), rgba(27, 31, 96, 0.98) 66%, rgba(118, 145, 195, 0.9));
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, 0.32),
    0 5px 9px rgba(31, 35, 100, 0.25);
  transform: rotate(42deg) translateY(-6%);
  transform-origin: 50% 20%;
  transition: transform 360ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.tonearm-head::after {
  content: "";
  position: absolute;
  left: 20%;
  bottom: -36%;
  width: 11%;
  height: 42%;
  border-radius: 999px;
  background: rgba(31, 35, 100, 0.9);
  transform: rotate(10deg);
}

.shine {
  z-index: 5;
  overflow: hidden;
  border-radius: 8px;
  opacity: 0.72;
  pointer-events: none;
}

.shine::before {
  content: "";
  position: absolute;
  top: -18%;
  left: -55%;
  width: 38%;
  height: 136%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.46), transparent);
  transform: rotate(18deg);
  animation: sweep 4.6s ease-in-out infinite;
}

.open-cue {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  margin-top: 14px;
  padding: 6px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.95);
  font-size: 14px;
  line-height: 1;
  transition:
    opacity 500ms ease,
    transform 500ms ease;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.58);
  animation: pulse 1.7s ease-out infinite;
}

.details {
  width: min(88vw, 500px);
  margin-top: clamp(16px, 3svh, 26px);
  padding: 18px 20px 20px;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 18px 34px rgba(31, 35, 100, 0.18);
  position: absolute;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(18px);
  transition:
    opacity 1700ms ease,
    transform 1700ms cubic-bezier(0.16, 1, 0.3, 1);
}

.details-kicker,
.info-list p,
.slogan {
  margin: 0;
}

.details-kicker {
  text-align: center;
  color: var(--ink);
  font-size: clamp(24px, 7vw, 34px);
  font-weight: 800;
  line-height: 1.2;
}

.info-list {
  display: grid;
  gap: 9px;
  margin-top: 16px;
}

.info-list p {
  display: grid;
  grid-template-columns: 54px 1fr;
  align-items: center;
  gap: 12px;
  color: var(--ink-soft);
  font-size: clamp(15px, 4vw, 18px);
  line-height: 1.45;
}

.info-list span {
  display: inline-grid;
  place-items: center;
  min-height: 28px;
  border-radius: 8px;
  background: rgba(143, 167, 204, 0.18);
  color: var(--ink);
  font-weight: 700;
}

.slogan {
  margin-top: 17px;
  padding-top: 15px;
  border-top: 1px solid rgba(59, 77, 135, 0.16);
  color: var(--ink);
  text-align: center;
  font-size: clamp(14px, 3.6vw, 18px);
  font-weight: 600;
  line-height: 1.42;
  display: grid;
  gap: 4px;
}

.slogan span {
  display: block;
}

.slogan span:nth-child(4),
.slogan span:last-child {
  font-weight: 800;
  font-size: 1.08em;
}

.scroll-cue {
  display: inline-grid;
  justify-items: center;
  gap: 7px;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
  line-height: 1;
  position: absolute;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(10px);
  transition:
    opacity 900ms ease 1150ms,
    transform 900ms cubic-bezier(0.16, 1, 0.3, 1) 1150ms;
}

.scroll-arrow {
  width: 14px;
  height: 14px;
  border-right: 1px solid rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.82);
  transform: rotate(45deg);
  animation: scrollHint 1.7s ease-in-out infinite;
}

.agenda-section {
  display: none;
  justify-items: center;
  align-content: start;
  width: min(88vw, 520px);
  min-height: 100svh;
  padding: clamp(46px, 8svh, 72px) 0 max(38px, env(safe-area-inset-bottom));
}

.agenda-panel {
  width: 100%;
  padding: clamp(20px, 5vw, 28px);
  border: 1px solid rgba(255, 255, 255, 0.56);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(248, 250, 255, 0.9), rgba(238, 244, 255, 0.78)),
    rgba(255, 255, 255, 0.76);
  box-shadow: 0 20px 36px rgba(31, 35, 100, 0.16);
  color: var(--ink);
}

.agenda-eyebrow,
.agenda-subtitle,
.agenda-prologue p,
.agenda-list {
  margin: 0;
}

.agenda-eyebrow {
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1;
  text-align: center;
}

.agenda-panel h2 {
  margin: 9px 0 0;
  color: var(--ink);
  font-size: clamp(24px, 7vw, 28px);
  line-height: 1.22;
  text-align: center;
  letter-spacing: 0;
}

.agenda-subtitle {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: clamp(13px, 3.4vw, 15px);
  line-height: 1.5;
  text-align: center;
  max-width: 27em;
  margin-left: auto;
  margin-right: auto;
}

.agenda-prologue {
  display: grid;
  gap: 7px;
  margin-top: 20px;
  padding: 14px 18px 15px;
  border-top: 1px solid rgba(59, 77, 135, 0.13);
  border-bottom: 1px solid rgba(59, 77, 135, 0.13);
  position: relative;
  justify-items: center;
  text-align: center;
}

.agenda-prologue::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 13px;
  width: min(138px, 44%);
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, rgba(89, 151, 211, 0.38), rgba(231, 211, 155, 0.42), transparent);
}

.agenda-prologue span {
  color: rgba(31, 35, 100, 0.72);
  font-size: 12px;
  line-height: 1;
}

.agenda-prologue p {
  color: var(--ink);
  font-size: clamp(15px, 4.1vw, 17px);
  line-height: 1.35;
  font-weight: 700;
}

.agenda-list {
  position: relative;
  display: grid;
  list-style: none;
  margin-top: 12px;
  padding: 0;
}

.agenda-list::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 18px;
  bottom: 18px;
  width: 1px;
  background: linear-gradient(180deg, rgba(89, 151, 211, 0.18), rgba(89, 151, 211, 0.68), rgba(89, 151, 211, 0.16));
}

.agenda-item {
  position: relative;
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 8px 0;
}

.agenda-item + .agenda-item {
  border-top: 1px solid rgba(59, 77, 135, 0.1);
}

.agenda-index {
  position: relative;
  z-index: 1;
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 28px;
  border: 1px solid rgba(89, 151, 211, 0.36);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.74);
  color: rgba(31, 35, 100, 0.72);
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
  box-shadow: 0 5px 13px rgba(31, 35, 100, 0.08);
}

.agenda-index::after {
  content: "";
  position: absolute;
  right: -5px;
  top: 50%;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold);
  transform: translateY(-50%);
  box-shadow: 0 0 0 4px rgba(231, 211, 155, 0.14);
}

.agenda-text {
  color: var(--ink);
  font-size: clamp(15px, 4.2vw, 17px);
  line-height: 1.45;
  font-weight: 700;
}

.agenda-footer-motto {
  margin: clamp(28px, 5svh, 42px) 0 0;
  color: rgba(31, 35, 100, 0.56);
  font-size: clamp(16px, 3.8vw, 22px);
  line-height: 1.35;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.12em;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.24);
  white-space: nowrap;
}

body.is-playing .album-button {
  transform: translateY(-2px) scale(1);
}

body.is-playing .record-spin {
  opacity: 1;
  transform: scale(0.96);
}

body.is-pulled .record-spin {
  z-index: 2;
  opacity: 1;
  transform: scale(0.96);
  filter: drop-shadow(0 19px 26px rgba(31, 35, 100, 0.26));
}

body.is-spinning .record-spin {
  animation-play-state: running;
}

body.is-music-playing .record-spin {
  animation-play-state: running;
}

body.is-music-paused .record-spin {
  animation-play-state: paused;
}

body.is-pulled .cover-closed {
  opacity: 0.08;
}

body.is-playing .cover-closed {
  transform: translateX(-112%) rotate(-1deg) scale(0.98);
  filter: drop-shadow(14px 12px 22px rgba(31, 35, 100, 0.2));
}

body.is-playing .open-cue {
  opacity: 0;
  transform: translateY(8px);
}

body.show-details .open-cue {
  display: none;
}

body.has-tonearm .tonearm {
  opacity: 1;
  transform: rotate(2deg) translate(-0.8%, 1.3%);
}

body.has-tonearm .tonearm-head {
  transform: rotate(42deg) translateY(3%);
}

body.is-music-paused.has-tonearm .tonearm {
  transform: rotate(-5deg) translate(1.2%, -0.8%);
}

body.is-music-paused.has-tonearm .tonearm-head {
  transform: rotate(42deg) translateY(-6%);
}

body.show-details.has-tonearm .tonearm {
  filter: drop-shadow(0 8px 11px rgba(31, 35, 100, 0.18));
}

body.show-details .details {
  position: relative;
  visibility: visible;
  pointer-events: auto;
}

body.show-details .scroll-cue {
  position: relative;
  visibility: visible;
  pointer-events: none;
}

body.details-visible .details {
  opacity: 1;
  transform: translateY(0);
}

body.details-visible .scroll-cue {
  opacity: 1;
  transform: translateY(0);
}

body.show-details .agenda-section {
  display: grid;
}

@keyframes spin {
  to {
    rotate: 360deg;
  }
}

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

@keyframes sweep {
  0%,
  38% {
    transform: translateX(0) rotate(18deg);
  }

  58%,
  100% {
    transform: translateX(430%) rotate(18deg);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.58);
  }

  70%,
  100% {
    box-shadow: 0 0 0 12px rgba(255, 255, 255, 0);
  }
}

@keyframes twinkle {
  0%,
  100% {
    opacity: 0.28;
    transform: scale(0.8);
  }

  50% {
    opacity: 0.86;
    transform: scale(1.18);
  }
}

@keyframes scrollHint {
  0%,
  100% {
    opacity: 0.45;
    transform: translateY(0) rotate(45deg);
  }

  50% {
    opacity: 1;
    transform: translateY(5px) rotate(45deg);
  }
}

@keyframes planeDrift {
  0% {
    opacity: 0;
    transform: translate(0, 0) rotate(var(--start-rotate)) scale(var(--plane-scale));
  }

  12% {
    opacity: var(--plane-opacity);
  }

  52% {
    opacity: var(--plane-mid-opacity);
    transform: translate(var(--mid-x), var(--mid-y)) rotate(var(--mid-rotate)) scale(var(--plane-scale));
  }

  76% {
    opacity: var(--plane-late-opacity);
  }

  100% {
    opacity: 0;
    transform: translate(var(--end-x), var(--end-y)) rotate(var(--end-rotate)) scale(var(--plane-scale));
  }
}

@media (max-width: 380px) {
  .scene {
    padding-inline: 14px;
  }

  .album-button {
    width: min(90vw, 52svh);
    margin-top: 16px;
  }

  .details {
    width: min(91vw, 500px);
    padding: 15px 15px 17px;
  }

  .info-list p {
    grid-template-columns: 48px 1fr;
    gap: 9px;
  }
}

@media (max-width: 520px) {
  .scene {
    padding: max(70px, calc(env(safe-area-inset-top) + 7svh)) 10px max(18px, env(safe-area-inset-bottom));
  }

  h1 {
    margin-top: 7px;
    font-size: clamp(34px, 11vw, 46px);
  }

  .lead {
    margin-top: 7px;
    font-size: clamp(16px, 4.6vw, 20px);
    line-height: 1.32;
  }

  .album-button {
    width: min(96vw, 54svh, 455px);
    margin-top: clamp(14px, 2.6svh, 22px);
  }

  .open-cue {
    margin-top: 8px;
    min-height: 30px;
    padding: 5px 12px;
    font-size: 13px;
  }

  .details {
    width: min(88vw, 430px);
    margin-top: clamp(8px, 1.5svh, 14px);
    padding: 13px 15px 14px;
  }

  .details-kicker {
    font-size: clamp(24px, 7vw, 30px);
  }

  .info-list {
    gap: 6px;
    margin-top: 10px;
  }

  .info-list p {
    grid-template-columns: 44px 1fr;
    gap: 8px;
    font-size: clamp(13px, 3.7vw, 16px);
    line-height: 1.35;
  }

  .info-list span {
    min-height: 24px;
  }

  .slogan {
    margin-top: 10px;
    padding-top: 10px;
    font-size: clamp(13px, 3.75vw, 16px);
    line-height: 1.34;
    gap: 3px;
  }

  .scroll-cue {
    margin-top: 13px;
    font-size: 12px;
  }

  .agenda-section {
    width: min(90vw, 520px);
    padding-top: 42px;
  }

  .agenda-panel {
    padding: 19px 17px 20px;
  }

  .agenda-panel h2 {
    font-size: clamp(24px, 7vw, 28px);
  }

  .agenda-subtitle {
    font-size: clamp(13px, 3.5vw, 15px);
  }

  .agenda-prologue {
    margin-top: 17px;
    padding: 13px 16px;
  }

  .agenda-item {
    grid-template-columns: 40px 1fr;
    gap: 10px;
    min-height: 45px;
    padding: 7px 0;
  }

  .agenda-footer-motto {
    margin-top: 28px;
    font-size: clamp(15px, 4vw, 19px);
  }

  .agenda-list::before {
    left: 19px;
  }

  .agenda-index {
    width: 38px;
    height: 27px;
  }
}

@media (max-width: 520px) and (max-height: 760px) {
  .scene {
    padding-top: max(52px, calc(env(safe-area-inset-top) + 5svh));
  }

  h1 {
    font-size: clamp(32px, 10vw, 42px);
  }

  .lead {
    font-size: clamp(15px, 4.3vw, 18px);
  }

  .album-button {
    width: min(88vw, 42svh, 380px);
    margin-top: 10px;
  }

  .open-cue {
    margin-top: 7px;
  }

  .details {
    margin-top: 7px;
    padding: 11px 13px 12px;
  }

  .details-kicker {
    font-size: clamp(22px, 6.6vw, 27px);
  }

  .info-list {
    gap: 5px;
    margin-top: 8px;
  }

  .info-list p {
    font-size: clamp(12px, 3.4vw, 15px);
    line-height: 1.28;
  }

  .info-list span {
    min-height: 22px;
  }

  .slogan {
    margin-top: 8px;
    padding-top: 8px;
    font-size: clamp(12px, 3.35vw, 15px);
    line-height: 1.28;
    gap: 2px;
  }

  .agenda-section {
    padding-top: 34px;
  }

  .agenda-panel {
    padding: 17px 15px 18px;
  }

  .agenda-subtitle {
    font-size: 14px;
  }

  .agenda-prologue p,
  .agenda-text {
    font-size: 15px;
  }

  .agenda-footer-motto {
    margin-top: 24px;
    font-size: clamp(14px, 3.8vw, 18px);
  }
}

@media (min-width: 760px) {
  .scene {
    align-content: center;
    padding-top: 34px;
  }

  .details {
    margin-top: 20px;
  }

  .scroll-cue {
    margin-top: 18px;
  }

  .agenda-section {
    padding-top: 68px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }

  .record-spin {
    animation-play-state: paused !important;
  }

  .music-symbol {
    animation: none !important;
  }

  .paper-plane {
    display: none;
  }
}