:root {
  --void: #06060a;
  --panel-dark: #0c0c16;
  --panel-light: #e9ecfb;
  --ink: #0a0a12;
  --ink-inverse: #f2f3ff;
  --wire: #2a2a3d;
  --wire-light: #b9bede;
  --muted: #7d81a6;
  --muted-onlight: #565b82;

  --cyan: #00e6ff;
  --magenta: #ff2ea6;
  --violet: #8b5cf6;
  --yellow: #ffd400;

  --font-display: "Orbitron", sans-serif;
  --font-body: "Noto Sans JP", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --max-w: 640px;
}

* { box-sizing: border-box; }
html { -webkit-tap-highlight-color: transparent; }

body {
  margin: 0;
  background: var(--void);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  position: relative;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.page {
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative;
  background:
    repeating-linear-gradient(180deg, rgba(0,230,255,0.025) 0px, rgba(0,230,255,0.025) 1px, transparent 1px, transparent 3px);
}

@media (min-width: 641px) {
  .page { box-shadow: 0 0 0 1px var(--wire), 0 0 80px rgba(0,230,255,0.08); }
}

.band {
  padding: 64px 32px;
  position: relative;
  overflow: hidden;
}

.band--black {
  background-color: var(--void);
  background-image:
    url("assets/starfield-tile.png"),
    linear-gradient(rgba(0,230,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,230,255,0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(139,92,246,0.08), transparent 45%);
  background-repeat: repeat, repeat, repeat, no-repeat;
  background-size: 320px 320px, 28px 28px, 28px 28px, 100% 100%;
  background-position: 0 0, 0 0, 0 0, 0 0;
  color: var(--ink-inverse);
  border-top: 1px solid var(--wire);
  border-bottom: 1px solid var(--wire);
}

.band--white {
  background-color: var(--panel-light);
  background-image:
    linear-gradient(rgba(10,10,18,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,10,18,0.035) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--ink);
}

.hud-frame {
  position: absolute;
  inset: 10px;
  pointer-events: none;
  z-index: 1;
}
.hud-frame::before,
.hud-frame::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-color: var(--cyan);
  opacity: 0.8;
}
.hud-frame::before {
  top: 0; left: 0;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
}
.hud-frame::after {
  bottom: 0; right: 0;
  border-bottom: 2px solid var(--magenta);
  border-right: 2px solid var(--magenta);
}
.hud-frame--dark::before { border-color: var(--violet); }
.hud-frame--dark::after { border-color: var(--magenta); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--muted-onlight);
  margin: 0 0 20px;
  position: relative;
  z-index: 2;
}
.eyebrow--onblack { color: var(--cyan); text-shadow: 0 0 8px rgba(0,230,255,0.5); }

.header {
  text-align: center;
  padding-top: 56px;
  padding-bottom: 48px;
  position: relative;
}

.orbit {
  position: absolute;
  top: 46%;
  left: 50%;
  width: 360px;
  height: 360px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 1;
}

.orbit__ring {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(0, 230, 255, 0.22);
  border-radius: 50%;
  animation: orbitSpin 16s linear infinite;
}

.orbit__ring--inner {
  inset: 58px;
  border-color: rgba(255, 46, 166, 0.22);
  animation-duration: 10s;
  animation-direction: reverse;
}

.orbit__sat {
  position: absolute;
  top: -3px;
  left: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan), 0 0 2px #fff;
  transform: translateX(-50%);
}
.orbit__sat--pink {
  background: var(--magenta);
  box-shadow: 0 0 8px var(--magenta), 0 0 2px #fff;
}

@keyframes orbitSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.header__logo {
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.header__tagline {
  margin: 24px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--ink-inverse);
  position: relative;
  z-index: 2;
}

.telemetry {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
  position: relative;
  z-index: 2;
}

.glitch-text {
  position: relative;
  display: inline-block;
}
.glitch-text::before,
.glitch-text::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  background: transparent;
  clip-path: inset(0 0 0 0);
}
.glitch-text::before {
  color: var(--cyan);
  animation: glitchTop 5s infinite linear;
  z-index: -1;
}
.glitch-text::after {
  color: var(--magenta);
  animation: glitchBottom 6.5s infinite linear;
  z-index: -1;
}
@keyframes glitchTop {
  0%, 92%, 100% { transform: translate(0,0); opacity: 0; clip-path: inset(0 0 90% 0); }
  93% { transform: translate(-2px,-1px); opacity: 0.8; clip-path: inset(0 0 60% 0); }
  95% { transform: translate(2px,1px); opacity: 0.8; clip-path: inset(30% 0 30% 0); }
  97% { transform: translate(-1px,0); opacity: 0; clip-path: inset(80% 0 0 0); }
}
@keyframes glitchBottom {
  0%, 90%, 100% { transform: translate(0,0); opacity: 0; clip-path: inset(90% 0 0 0); }
  91% { transform: translate(2px,1px); opacity: 0.8; clip-path: inset(60% 0 0 0); }
  94% { transform: translate(-2px,-1px); opacity: 0.8; clip-path: inset(20% 0 40% 0); }
  96% { transform: translate(1px,0); opacity: 0; clip-path: inset(0 0 85% 0); }
}

.description__text {
  margin: 0;
  font-size: 16.5px;
  line-height: 2;
  font-weight: 500;
  position: relative;
  z-index: 2;
}

.platform-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  position: relative;
  z-index: 2;
}

.platform-grid__item {
  display: block;
  overflow: hidden;
  transition: transform 0.15s ease, filter 0.15s ease;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}
.platform-grid__item:hover { transform: translateY(-2px); filter: brightness(1.15); }
.platform-grid__item:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.latest-episode__frame {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border: 1px solid var(--wire);
  overflow: hidden;
  z-index: 2;
  box-shadow: 0 0 24px rgba(139,92,246,0.15);
}
.latest-episode__frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.latest-episode__caption {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.02em;
  position: relative;
  z-index: 2;
}

.backnumber-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 12px;
  position: relative;
  z-index: 2;
}

.backnumber-grid--single {
  grid-template-columns: minmax(0, 320px);
  justify-content: center;
}

.backnumber-grid__item { display: block; }

.backnumber-grid__item img {
  border: 1px solid var(--wire);
  transition: opacity 0.15s ease, filter 0.15s ease;
}
.backnumber-grid__item:hover img { opacity: 0.9; filter: brightness(1.2); }
.backnumber-grid__item:focus-visible img {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.backnumber-grid__title {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
}

.letter__text {
  margin: 0 0 28px;
  font-size: 15.5px;
  line-height: 1.9;
  font-weight: 500;
  position: relative;
  z-index: 2;
}

.letter-cta {
  display: inline-block;
  padding: 16px 30px;
  background: var(--ink);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  border: 1px solid var(--cyan);
  position: relative;
  z-index: 2;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: transform 0.15s ease, box-shadow 0.15s ease, color 0.15s ease;
}
.letter-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 18px rgba(0,230,255,0.5);
  color: var(--magenta);
}
.letter-cta:focus-visible { outline: 2px solid var(--magenta); outline-offset: 3px; }

.sticker-footer {
  text-align: center;
  padding-bottom: 56px;
}

.sticker-footer__image {
  margin: 0 auto;
  max-width: 300px;
  position: relative;
  z-index: 2;
}

.sticker-footer__copy {
  margin: 24px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
  position: relative;
  z-index: 2;
}

.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 998;
  opacity: 0.5;
  background: repeating-linear-gradient(
    180deg,
    rgba(0,0,0,0.18) 0px,
    rgba(0,0,0,0.18) 1px,
    transparent 1px,
    transparent 3px
  );
  animation: scanFlicker 6s infinite steps(2);
}
@keyframes scanFlicker {
  0%, 96%, 100% { opacity: 0.5; }
  97% { opacity: 0.3; }
  98% { opacity: 0.6; }
}

@media (prefers-reduced-motion: reduce) {
  .glitch-text::before, .glitch-text::after { animation: none; opacity: 0; }
  .scanlines { animation: none; }
  .orbit__ring { animation: none; }
  .platform-grid__item, .backnumber-grid__item img, .letter-cta {
    transition: none;
  }
}

@media (max-width: 420px) {
  .band { padding: 48px 20px; }
  .backnumber-grid, .platform-grid { gap: 10px; }
  .orbit { width: 260px; height: 260px; }
  .orbit__ring--inner { inset: 42px; }
}