/* Zero Sukai — synth pop landing */

:root {
  --bg-deep: #060814;
  --bg-mid: #0d1224;
  --neon-pink: #ff2d95;
  --neon-cyan: #00f5ff;
  --neon-purple: #7b5cff;
  --chrome-top: #1a2a4a;
  --text: #e8ecff;
  --text-muted: rgba(232, 236, 255, 0.72);
  --sidebar: #080c18;
  --glow-pink: rgba(255, 45, 149, 0.45);
  --glow-cyan: rgba(0, 245, 255, 0.35);
  --font-display: "Orbitron", system-ui, sans-serif;
  --font-script: "Mr Dafoe", cursive;
  --font-jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --space: clamp(1rem, 4vw, 2rem);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  overflow-x: clip;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  min-height: 100dvh;
  max-width: 100%;
  font-family: var(--font-jp);
  font-size: clamp(0.95rem, 2.5vw, 1.05rem);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-deep);
  overflow-x: hidden;
  overflow-x: clip;
}

/* Animated grid + horizon glow */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(180deg, transparent 0%, var(--bg-deep) 55%, var(--bg-deep) 100%),
    linear-gradient(90deg, rgba(0, 245, 255, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(255, 45, 149, 0.05) 1px, transparent 1px);
  background-size: 100% 100%, min(72px, 12vw) min(72px, 12vw), min(72px, 12vw) min(72px, 12vw);
  animation: grid-drift 28s linear infinite;
  pointer-events: none;
}

@keyframes grid-drift {
  0% {
    background-position: 0 0, 0 0, 0 0;
  }
  100% {
    background-position: 0 0, min(72px, 12vw) min(72px, 12vw), min(-36px, -6vw) min(36px, 6vw);
  }
}

.bg-glow {
  position: fixed;
  width: 140vmax;
  height: 70vmax;
  left: 50%;
  top: -20%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(123, 92, 255, 0.22) 0%, transparent 55%);
  z-index: 0;
  pointer-events: none;
  animation: glow-pulse 8s var(--ease-out) infinite alternate;
}

@keyframes glow-pulse {
  0% {
    opacity: 0.6;
    transform: translateX(-50%) scale(1);
  }
  100% {
    opacity: 1;
    transform: translateX(-50%) scale(1.05);
  }
}

/* Scanline overlay */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.09) 0px,
    rgba(0, 0, 0, 0.09) 1px,
    transparent 1px,
    transparent 3px
  );
  opacity: 0.35;
  mix-blend-mode: overlay;
}

/* Layout shell */
.shell {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 100dvh;
  min-width: 0;
  max-width: 100%;
  grid-template-columns: auto 1fr;
}

@media (max-width: 900px) {
  .shell {
    grid-template-columns: 1fr;
  }
}

.shell__main {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  min-width: 0;
  max-width: 100%;
  width: 100%;
}

/* Left rail — album sidebar vibe */
.rail {
  width: clamp(3.25rem, 8vw, 4.5rem);
  background: linear-gradient(180deg, var(--sidebar) 0%, #0f1428 100%);
  border-right: 3px solid var(--neon-pink);
  box-shadow: inset 0 0 40px rgba(0, 245, 255, 0.06), 4px 0 24px var(--glow-pink);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space) 0.35rem;
  gap: 1.25rem;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
}

.rail__label {
  white-space: nowrap;
  animation: rail-shimmer 6s ease-in-out infinite;
}

@keyframes rail-shimmer {
  0%,
  100% {
    opacity: 0.75;
    text-shadow: 0 0 8px var(--neon-cyan);
  }
  50% {
    opacity: 1;
    text-shadow: 0 0 14px var(--neon-pink), 0 0 20px var(--neon-cyan);
  }
}

.rail__jp {
  font-family: var(--font-jp);
  font-size: clamp(0.85rem, 2.2vw, 1.05rem);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--neon-cyan);
  text-shadow: 0 0 12px var(--glow-cyan);
}

.rail__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--neon-cyan), var(--neon-purple));
  box-shadow: 0 0 12px var(--neon-pink);
  flex-shrink: 0;
  animation: dot-pulse 2.5s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.15);
    opacity: 0.85;
  }
}

@media (max-width: 900px) {
  .rail {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    writing-mode: horizontal-tb;
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    padding: 0.65rem max(0.75rem, env(safe-area-inset-left)) 0.65rem max(0.75rem, env(safe-area-inset-right));
    border-right: none;
    border-bottom: 3px solid var(--neon-pink);
    box-shadow: inset 0 0 30px rgba(255, 45, 149, 0.08), 0 4px 24px var(--glow-pink);
  }

  .rail__label {
    white-space: normal;
    text-align: center;
    font-size: clamp(0.55rem, 2.8vw, 0.65rem);
    letter-spacing: 0.18em;
    max-width: 100%;
  }

  .rail__jp {
    width: 100%;
    text-align: center;
    order: -1;
  }
}

/* Main column */
main {
  padding: var(--space);
  padding-left: max(var(--space), env(safe-area-inset-left));
  padding-right: max(var(--space), env(safe-area-inset-right));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(1.25rem, 4vw, 2.5rem);
  max-width: 56rem;
  margin: 0 auto;
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.logo-wrap {
  position: relative;
  width: 100%;
  max-width: min(32.5rem, 100%);
  padding: 0 0.25rem;
  box-sizing: border-box;
  animation: logo-float 5s var(--ease-out) infinite alternate;
}

@keyframes logo-float {
  0% {
    transform: translateY(0) skewX(0deg);
    filter: drop-shadow(0 0 12px rgba(255, 45, 149, 0.5)) drop-shadow(0 0 6px rgba(0, 245, 255, 0.35));
  }
  100% {
    transform: translateY(-6px) skewX(-0.5deg);
    filter: drop-shadow(0 0 16px rgba(255, 45, 149, 0.55)) drop-shadow(0 0 10px rgba(0, 245, 255, 0.4));
  }
}

.logo-wrap img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

/* Art card */
.art-card {
  position: relative;
  width: 100%;
  max-width: min(40rem, 100%);
  margin-inline: auto;
  border: 2px solid transparent;
  border-radius: 4px;
  background:
    linear-gradient(var(--bg-mid), var(--bg-mid)) padding-box,
    linear-gradient(135deg, var(--neon-cyan), var(--neon-pink), var(--neon-purple)) border-box;
  padding: 3px;
  box-shadow:
    0 0 0 1px rgba(0, 245, 255, 0.15),
    0 16px 40px rgba(0, 0, 0, 0.55),
    0 0 40px rgba(255, 45, 149, 0.25);
  animation: border-hue 10s linear infinite;
}

@keyframes border-hue {
  0% {
    filter: hue-rotate(0deg);
  }
  100% {
    filter: hue-rotate(25deg);
  }
}

.art-card__inner {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}

.art-card__inner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(255, 255, 255, 0.08) 50%,
    transparent 60%
  );
  animation: shine 4.5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes shine {
  0% {
    transform: translateX(-100%);
  }
  20%,
  100% {
    transform: translateX(100%);
  }
}

.art-card img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
  object-fit: cover;
}

/* Copy block */
.copy {
  text-align: center;
  max-width: 36rem;
  width: 100%;
  min-width: 0;
  padding-inline: 0.125rem;
  box-sizing: border-box;
}

.copy h1 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(0.62rem, 2.8vw + 0.35rem, 1.5rem);
  line-height: 1.2;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  overflow-wrap: anywhere;
  word-break: break-word;
  hyphens: manual;
  max-width: 100%;
  background: linear-gradient(90deg, var(--neon-cyan), var(--text), var(--neon-pink));
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: text-shine 6s linear infinite;
}

@media (min-width: 480px) {
  .copy h1 {
    letter-spacing: 0.08em;
    font-size: clamp(1rem, 3.2vw, 1.5rem);
  }
}

@keyframes text-shine {
  0% {
    background-position: 0% center;
  }
  100% {
    background-position: 200% center;
  }
}

.tagline {
  margin: 0;
  font-size: clamp(1.05rem, 3vw, 1.35rem);
  font-weight: 600;
  color: var(--text);
}

.tagline__jp {
  display: block;
  margin-top: 0.35rem;
  font-size: clamp(0.95rem, 2.6vw, 1.1rem);
  font-weight: 500;
  color: var(--text-muted);
  overflow-wrap: anywhere;
}

.status {
  margin: 0.75rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(0.68rem, 3.2vw, 0.8rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--neon-pink);
  text-shadow: 0 0 12px var(--glow-pink);
  animation: blink-soft 2.8s ease-in-out infinite;
  max-width: 100%;
  overflow-wrap: anywhere;
}

@media (min-width: 480px) {
  .status {
    letter-spacing: 0.28em;
    font-size: 0.8rem;
  }
}

.status__jp {
  display: block;
  margin-top: 0.4rem;
  font-family: var(--font-jp);
  font-size: 0.95rem;
  letter-spacing: 0.15em;
  text-transform: none;
  color: var(--neon-cyan);
  text-shadow: 0 0 10px var(--glow-cyan);
}

@keyframes blink-soft {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.55;
  }
}

.sub {
  margin: 1rem 0 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  overflow-wrap: anywhere;
}

.sub__jp {
  display: block;
  margin-top: 0.25rem;
  overflow-wrap: anywhere;
}

/* Demo player */
.player {
  position: relative;
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
}

/* Safari still reserves width for <audio> even without controls — keep it out of flow */
.player audio {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.player button {
  appearance: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  font-family: var(--font-display);
  font-size: clamp(0.72rem, 2.5vw, 0.95rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  width: fit-content;
  max-width: 100%;
  margin-inline: auto;
  padding: 0.85rem 1rem;
  color: var(--bg-deep);
  border: none;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
  background-size: 200% 200%;
  box-shadow:
    0 0 0 2px rgba(0, 245, 255, 0.4),
    0 0 24px var(--glow-pink),
    0 8px 24px rgba(0, 0, 0, 0.4);
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s;
  animation: btn-gradient 4s ease infinite;
}

.player button .btn-label-jp {
  font-family: var(--font-jp);
  font-size: clamp(0.68rem, 2vw, 0.82rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: none;
}

@media (min-width: 480px) {
  .player button {
    letter-spacing: 0.12em;
    padding: 1rem 1.75rem;
  }

  .player button .btn-label-jp {
    letter-spacing: 0.1em;
  }
}

@keyframes btn-gradient {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.player button:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow:
    0 0 0 2px var(--neon-cyan),
    0 0 32px var(--glow-pink),
    0 12px 28px rgba(0, 0, 0, 0.45);
}

.player button:active {
  transform: translateY(0) scale(0.98);
}

.player button:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 4px;
}

.player__state {
  margin-top: 0.65rem;
  font-size: 0.75rem;
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--neon-cyan);
  min-height: 1.25em;
  max-width: 100%;
  overflow-wrap: anywhere;
}

@media (min-width: 480px) {
  .player__state {
    letter-spacing: 0.2em;
  }
}

/* QR code — obi-style frame */
.qr-block {
  margin-top: clamp(1.25rem, 4vw, 2rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
}

.qr-block__label {
  margin: 0 0 0.2rem;
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.qr-block__label--jp {
  margin-bottom: 0.65rem;
  font-family: var(--font-jp);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: none;
  color: var(--neon-cyan);
  text-shadow: 0 0 10px var(--glow-cyan);
}

.qr-block__frame {
  padding: 6px;
  background: linear-gradient(135deg, rgba(0, 245, 255, 0.25), rgba(255, 45, 149, 0.35));
  border-radius: 4px;
  box-shadow:
    0 0 0 1px rgba(0, 245, 255, 0.35),
    0 0 24px rgba(255, 45, 149, 0.2);
}

.qr-block__frame img {
  display: block;
  width: min(11rem, 72vw);
  height: auto;
  max-width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  background: #fff;
  border-radius: 2px;
}

footer {
  margin-top: auto;
  padding: 1rem max(var(--space), env(safe-area-inset-left)) 1.5rem max(var(--space), env(safe-area-inset-right));
  text-align: center;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  font-size: 0.75rem;
  color: rgba(232, 236, 255, 0.4);
  letter-spacing: 0.15em;
}

footer span {
  display: block;
}

footer .jp {
  margin-top: 0.25rem;
  font-family: var(--font-jp);
  letter-spacing: 0.1em;
}