:root {
  --bg-1: #140a3a;
  --bg-2: #2b0f5e;
  --ink: #fdf6ff;
  --muted: #c9b8f0;
  --yellow: #ffd34d;
  --pink: #ff7bd5;
  --cyan: #7ef2ff;
  --violet: #b48bff;
  --card: rgba(255, 255, 255, 0.07);
  --card-line: rgba(255, 255, 255, 0.16);
  --pop: "Mochiy Pop One", "Hiragino Maru Gothic ProN", "Hiragino Sans", sans-serif;
  --dot: "DotGothic16", "Osaka-Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: radial-gradient(ellipse at 50% 0%, var(--bg-2), var(--bg-1) 70%) fixed;
  font-family: var(--pop);
  line-height: 1.7;
  overflow-x: hidden;
}

body.rainbow {
  animation: rainbow 4s linear infinite;
}

@keyframes rainbow {
  to {
    filter: hue-rotate(360deg);
  }
}

#sky {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

main,
.footer {
  position: relative;
  z-index: 1;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 16px;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

/* ---------- ticker ---------- */
.ticker {
  position: relative;
  z-index: 2;
  overflow: hidden;
  white-space: nowrap;
  background: linear-gradient(90deg, var(--pink), var(--violet), var(--cyan));
  color: var(--bg-1);
  font-family: var(--dot);
  font-size: 14px;
  padding: 4px 0;
}

.ticker__track {
  display: inline-block;
  padding-left: 100%;
  animation: ticker 40s linear infinite;
}

@keyframes ticker {
  to {
    transform: translateX(-100%);
  }
}

.sound-toggle {
  position: fixed;
  right: 12px;
  bottom: 12px;
  z-index: 20;
  border: 2px solid var(--card-line);
  background: rgba(20, 10, 58, 0.8);
  border-radius: 999px;
  padding: 6px 14px;
  font-family: var(--dot);
  font-size: 14px;
  backdrop-filter: blur(6px);
}

.sound-toggle[aria-pressed="true"] {
  border-color: var(--yellow);
  color: var(--yellow);
}

/* ---------- hero ---------- */
.hero {
  text-align: center;
  padding: 48px 0 16px;
}

.title {
  margin: 0;
  font-size: clamp(48px, 12vw, 112px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: 0.04em;
  user-select: none;
}

.title span {
  display: inline-block;
  color: var(--yellow);
  text-shadow:
    0 4px 0 #ff8a3d,
    0 8px 24px rgba(255, 123, 213, 0.6);
  animation: wobble 2.4s ease-in-out infinite;
  animation-delay: calc(var(--i) * -0.3s);
  transition: transform 0.2s;
}

.title span:nth-child(even) {
  color: var(--pink);
  text-shadow:
    0 4px 0 #c93f9a,
    0 8px 24px rgba(126, 242, 255, 0.5);
}

.title span.jump {
  animation: jump 0.6s cubic-bezier(0.3, 1.8, 0.5, 1);
}

@keyframes wobble {
  0%,
  100% {
    transform: translateY(0) rotate(-3deg);
  }
  50% {
    transform: translateY(-8px) rotate(3deg);
  }
}

@keyframes jump {
  0% {
    transform: translateY(0) scale(1);
  }
  40% {
    transform: translateY(-40px) scale(1.2) rotate(-12deg);
  }
  100% {
    transform: translateY(0) scale(1);
  }
}

.lead {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: clamp(14px, 3.4vw, 18px);
}

.planet-wrap {
  position: relative;
  width: min(380px, 86vw);
  margin: 24px auto 0;
}

.planet {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  padding: 0;
  border: 0;
  background: none;
  border-radius: 50%;
  animation: float 5s ease-in-out infinite;
  -webkit-tap-highlight-color: transparent;
}

.planet:focus-visible {
  outline: 3px dashed var(--cyan);
  outline-offset: 6px;
}

.planet svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 0 40px rgba(255, 211, 77, 0.35));
}

.planet.boing svg {
  animation: boing 0.5s cubic-bezier(0.3, 1.8, 0.5, 1);
}

.planet.spin svg {
  animation: spin 1.2s cubic-bezier(0.5, 0, 0.3, 1);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-14px);
  }
}

@keyframes boing {
  0% {
    transform: scale(1, 1);
  }
  30% {
    transform: scale(1.12, 0.88);
  }
  60% {
    transform: scale(0.94, 1.08);
  }
  100% {
    transform: scale(1, 1);
  }
}

@keyframes spin {
  to {
    transform: rotate(720deg);
  }
}

.eyes {
  transform-box: fill-box;
  transform-origin: center;
}

.eyes.blink {
  animation: blink 0.18s ease-in-out;
}

@keyframes blink {
  50% {
    transform: scaleY(0.1);
  }
}

.cheek {
  opacity: 0.45;
  transition: opacity 0.3s;
}

.planet.happy .cheek {
  opacity: 0.9;
}

#mouth {
  transition: d 0.3s;
}

.bubble {
  position: absolute;
  left: 50%;
  top: -8px;
  z-index: 3;
  transform: translate(-50%, -100%) scale(0.6);
  max-width: min(320px, 80vw);
  padding: 10px 16px;
  border-radius: 18px;
  background: #fff;
  color: var(--bg-1);
  font-size: 15px;
  line-height: 1.5;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.2s,
    transform 0.25s cubic-bezier(0.3, 1.8, 0.5, 1);
}

.bubble::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -10px;
  border: 10px solid transparent;
  border-bottom: 0;
  border-top-color: #fff;
  transform: translateX(-50%);
}

.bubble.show {
  opacity: 1;
  transform: translate(-50%, -100%) scale(1);
}

.hint {
  margin: 8px 0 0;
  color: var(--muted);
  font-family: var(--dot);
  font-size: 13px;
}

/* ---------- panel ---------- */
.panel,
.card {
  background: var(--card);
  border: 1px solid var(--card-line);
  border-radius: 24px;
  backdrop-filter: blur(4px);
}

.panel {
  margin: 40px 0 24px;
  padding: 24px;
  text-align: center;
}

h2 {
  margin: 0 0 16px;
  font-size: 20px;
  font-weight: 400;
  color: var(--cyan);
}

.buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 8px;
  border: 0;
  border-radius: 18px;
  background: linear-gradient(180deg, #4a2a96, #31187a);
  box-shadow:
    0 6px 0 #1d0c4f,
    inset 0 2px 0 rgba(255, 255, 255, 0.2);
  font-size: 14px;
  transition:
    transform 0.08s,
    box-shadow 0.08s,
    background 0.2s;
}

.btn span {
  font-size: 30px;
  line-height: 1;
}

.btn:hover {
  background: linear-gradient(180deg, #5b37b0, #3b1f8c);
}

.btn:active {
  transform: translateY(5px);
  box-shadow:
    0 1px 0 #1d0c4f,
    inset 0 2px 0 rgba(255, 255, 255, 0.2);
}

.btn[aria-pressed="true"] {
  background: linear-gradient(180deg, #ff8fd9, #d24fb0);
  box-shadow:
    0 6px 0 #8c2a74,
    inset 0 2px 0 rgba(255, 255, 255, 0.3);
}

.btn:focus-visible,
.link-btn:focus-visible,
.fake-nav button:focus-visible,
.sound-toggle:focus-visible {
  outline: 3px dashed var(--cyan);
  outline-offset: 3px;
}

.btn.shake {
  animation: shake 0.4s;
}

@keyframes shake {
  20%,
  60% {
    transform: translateX(-6px) rotate(-4deg);
  }
  40%,
  80% {
    transform: translateX(6px) rotate(4deg);
  }
}

.btn--small {
  flex-direction: row;
  padding: 8px 16px;
  white-space: nowrap;
}

.meter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 12px;
  margin: 24px 0 0;
  font-family: var(--dot);
}

.meter strong {
  color: var(--yellow);
  font-size: 20px;
}

.meter__bar {
  width: min(240px, 60vw);
  height: 14px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
}

.meter__bar span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--yellow), var(--pink));
  transition: width 0.3s;
}

.status {
  margin: 8px 0 0;
  font-family: var(--dot);
  color: var(--muted);
}

.status strong {
  color: var(--cyan);
}

/* ---------- cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  padding: 20px;
  min-width: 0;
}

body.antigravity .card,
body.antigravity .panel {
  animation: drift 6s ease-in-out infinite;
}

body.antigravity .card:nth-child(2) {
  animation-delay: -2s;
}

body.antigravity .card:nth-child(3) {
  animation-delay: -4s;
}

@keyframes drift {
  0%,
  100% {
    transform: translateY(0) rotate(0);
  }
  50% {
    transform: translateY(-18px) rotate(1.5deg);
  }
}

body.upside main {
  transform: rotate(180deg);
  transition: transform 1s cubic-bezier(0.5, 0, 0.3, 1);
}

main {
  transition: transform 1s cubic-bezier(0.5, 0, 0.3, 1);
}

.facts {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 12px;
  margin: 0 0 12px;
  font-size: 14px;
}

.facts dt {
  color: var(--muted);
}

.facts dd {
  margin: 0;
}

.facts dd.pop {
  animation: pop 0.4s;
}

@keyframes pop {
  50% {
    transform: scale(1.15);
    color: var(--yellow);
  }
}

.weather {
  display: grid;
  gap: 4px;
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
  font-size: 14px;
}

.weather li {
  display: grid;
  grid-template-columns: 2em 2em 1fr;
  align-items: center;
  gap: 4px;
}

.weather .day {
  color: var(--muted);
  font-family: var(--dot);
}

.weather .icon {
  font-size: 20px;
}

.link-btn {
  padding: 0;
  border: 0;
  background: none;
  color: var(--pink);
  font-size: 13px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.muted {
  color: var(--muted);
  font-size: 13px;
}

.tiny {
  font-size: 11px;
  opacity: 0.4;
}

.talk {
  display: flex;
  gap: 8px;
}

.talk input {
  flex: 1;
  min-width: 0;
  padding: 8px 12px;
  border: 2px solid var(--card-line);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.25);
  color: var(--ink);
  font: 16px var(--dot);
}

.talk input:focus {
  outline: none;
  border-color: var(--cyan);
}

.log {
  display: grid;
  gap: 6px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--dot);
  font-size: 14px;
}

.log li {
  padding: 6px 10px;
  border-radius: 10px;
  overflow-wrap: anywhere;
}

.log .me {
  justify-self: end;
  background: rgba(126, 242, 255, 0.18);
}

.log .them {
  justify-self: start;
  background: rgba(255, 211, 77, 0.18);
}

/* ---------- fake nav ---------- */
.fake-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 32px 0 0;
}

.fake-nav button {
  padding: 6px 16px;
  border: 1px solid var(--card-line);
  border-radius: 999px;
  background: none;
  font-size: 14px;
  transition:
    transform 0.2s,
    background 0.2s;
}

.fake-nav button:hover {
  background: rgba(255, 255, 255, 0.1);
}

.fake-nav button.flee {
  transition: transform 0.25s;
}

/* ---------- footer ---------- */
.footer {
  padding: 40px 16px 72px;
  text-align: center;
}

.counter {
  margin: 0 0 8px;
  font-family: var(--dot);
}

.digits {
  display: inline-block;
  padding: 2px 8px;
  border: 2px solid #3a2a6a;
  border-radius: 6px;
  background: #000;
  color: #59ff7a;
  letter-spacing: 0.2em;
  text-shadow: 0 0 8px #59ff7a;
}

/* ---------- toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  top: 48px;
  z-index: 30;
  max-width: calc(100vw - 32px);
  padding: 12px 20px;
  border-radius: 16px;
  background: #fff;
  color: var(--bg-1);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  font-size: 15px;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -20px);
  transition:
    opacity 0.25s,
    transform 0.25s cubic-bezier(0.3, 1.8, 0.5, 1);
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- aliens ---------- */
.aliens {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10;
  height: 0;
}

.alien {
  position: absolute;
  bottom: 8px;
  left: 0;
  width: 56px;
  height: 64px;
  padding: 0;
  border: 0;
  background: none;
  pointer-events: auto;
  will-change: transform;
}

.alien svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  animation: waddle 0.5s ease-in-out infinite alternate;
  transform-origin: 50% 100%;
}

.alien.hop svg {
  animation: hop 0.6s cubic-bezier(0.3, 1.8, 0.5, 1);
}

.alien .say {
  position: absolute;
  left: 50%;
  bottom: 100%;
  transform: translateX(-50%);
  padding: 2px 8px;
  border-radius: 8px;
  background: #fff;
  color: var(--bg-1);
  font: 12px var(--dot);
  white-space: nowrap;
}

@keyframes waddle {
  from {
    transform: rotate(-6deg);
  }
  to {
    transform: rotate(6deg);
  }
}

@keyframes hop {
  50% {
    transform: translateY(-60px) rotate(20deg);
  }
}

/* ---------- responsive ---------- */
@media (max-width: 840px) {
  .buttons {
    grid-template-columns: repeat(2, 1fr);
  }

  .cards {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .ticker__track {
    padding-left: 16px;
  }
}