:root {
  --bg-0: oklch(0.08 0.04 295);
  --bg-1: oklch(0.13 0.06 295);
  --bg-2: oklch(0.18 0.08 300);
  --ink: oklch(0.97 0.02 310);
  --ink-dim: oklch(0.72 0.04 300);
  --ink-faint: oklch(0.48 0.03 300);
  --magenta: oklch(0.72 0.28 340);
  --cyan: oklch(0.82 0.18 210);
  --rose: oklch(0.78 0.18 15);
  --violet: oklch(0.55 0.24 305);
  --gold: oklch(0.87 0.17 90);
  --hud: oklch(0.92 0.16 195);
  --danger: oklch(0.68 0.26 28);
  --panel: oklch(0.14 0.05 298 / 0.72);
  --panel-stroke: oklch(0.55 0.12 300 / 0.4);
  --grid: oklch(0.5 0.1 300 / 0.12);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg-0);
  color: var(--ink);
  font-family: "Zen Kaku Gothic New", "Helvetica Neue", sans-serif;
  font-weight: 400;
  overflow-x: hidden;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  background:
    radial-gradient(1200px 800px at 80% -10%, oklch(0.4 0.24 340 / 0.35), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, oklch(0.45 0.22 260 / 0.35), transparent 55%),
    radial-gradient(1000px 700px at 50% 110%, oklch(0.4 0.22 200 / 0.25), transparent 60%),
    var(--bg-0);
  min-height: 100vh;
  position: relative;
}

/* Global scanlines overlay */
body::before {
  content: "";
  position: fixed; inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 2px,
    oklch(1 0 0 / 0.02) 2px 3px
  );
  pointer-events: none;
  z-index: 100;
  mix-blend-mode: overlay;
}

/* Grid floor */
body::after {
  content: "";
  position: fixed; inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 20%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

.display { font-family: "Orbitron", sans-serif; font-weight: 900; letter-spacing: 0.02em; }
.mono    { font-family: "JetBrains Mono", monospace; }
.jp      { font-family: "Zen Kaku Gothic New", sans-serif; }
.zd      { font-family: "Zen Dots", sans-serif; letter-spacing: 0.06em; }

/* Layout */
.page {
  position: relative;
  z-index: 1;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 48px;
}

section + section { margin-top: 160px; }

/* ═══════════════════════════════════════════════════
   Simple neon divider
   ═══════════════════════════════════════════════════ */
.wave-divider {
  max-width: 1600px;
  margin: 100px auto;
  padding: 0 48px;
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
}
.wave-divider .wd-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--wd-accent, var(--magenta)) 20%,
    var(--wd-accent, var(--magenta)) 80%,
    transparent
  );
  box-shadow: 0 0 8px var(--wd-accent, var(--magenta));
}
.wave-divider .wd-label {
  color: var(--wd-accent, var(--magenta));
  text-shadow: 0 0 10px var(--wd-accent, var(--magenta));
  white-space: nowrap;
}
.wave-divider .wd-dash { color: var(--wd-accent, var(--magenta)); opacity: 0.7; }

@media (max-width: 900px) {
  .wave-divider { margin: 60px auto; padding: 0 20px; font-size: 11px; letter-spacing: 0.25em; }
  section + section { margin-top: 90px; }
}

/* Neon text */
.neon {
  color: var(--ink);
  text-shadow:
    0 0 2px oklch(1 0 0),
    0 0 14px var(--magenta),
    0 0 32px oklch(0.6 0.24 340 / 0.6);
}
.neon-cyan {
  text-shadow:
    0 0 2px oklch(1 0 0),
    0 0 14px var(--cyan),
    0 0 28px oklch(0.6 0.22 210 / 0.6);
}

/* HUD corner brackets */
.bracket {
  position: relative;
}
.bracket::before, .bracket::after {
  content: "";
  position: absolute;
  width: 18px; height: 18px;
  border: 2px solid var(--hud);
  filter: drop-shadow(0 0 6px var(--cyan));
}
.bracket::before { top: -2px; left: -2px; border-right: 0; border-bottom: 0; }
.bracket::after { bottom: -2px; right: -2px; border-left: 0; border-top: 0; }

.bracket-4 { position: relative; }
.bracket-4 > .bk { position: absolute; width: 14px; height: 14px; border: 2px solid var(--hud); filter: drop-shadow(0 0 4px var(--cyan)); }
.bracket-4 > .bk.tl { top: -2px; left: -2px; border-right: 0; border-bottom: 0; }
.bracket-4 > .bk.tr { top: -2px; right: -2px; border-left: 0; border-bottom: 0; }
.bracket-4 > .bk.bl { bottom: -2px; left: -2px; border-right: 0; border-top: 0; }
.bracket-4 > .bk.br { bottom: -2px; right: -2px; border-left: 0; border-top: 0; }

/* Panels */
.panel {
  background: var(--panel);
  border: 1px solid var(--panel-stroke);
  backdrop-filter: blur(8px);
  position: relative;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  background: linear-gradient(135deg, oklch(0.35 0.22 340), oklch(0.3 0.22 300));
  border: 1px solid var(--magenta);
  color: var(--ink);
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  letter-spacing: 0.18em;
  font-size: 13px;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  clip-path: polygon(12px 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
  transition: transform .15s ease, box-shadow .2s ease, filter .2s ease;
  box-shadow:
    0 0 0 1px oklch(1 0 0 / 0.06) inset,
    0 0 24px oklch(0.55 0.24 340 / 0.5),
    0 10px 40px oklch(0.2 0.1 300 / 0.5);
}
.btn:hover { transform: translateY(-2px); filter: brightness(1.15); }
.btn.ghost {
  background: oklch(0.1 0.03 300 / 0.6);
  border-color: var(--hud);
  box-shadow: 0 0 0 1px oklch(1 0 0 / 0.06) inset, 0 0 20px oklch(0.55 0.22 200 / 0.35);
}
.btn .arrow { font-family: monospace; }

/* Chips */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--panel-stroke);
  background: oklch(0.12 0.04 300 / 0.6);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.chip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--magenta); box-shadow: 0 0 8px var(--magenta); }
.chip .dot.cyan { background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }
.chip .dot.gold { background: var(--gold); box-shadow: 0 0 8px var(--gold); }

/* Placeholder art frame - striped */
.placeholder-art {
  background:
    repeating-linear-gradient(
      135deg,
      oklch(0.2 0.08 300 / 0.5) 0 14px,
      oklch(0.14 0.06 300 / 0.5) 14px 28px
    ),
    radial-gradient(ellipse at 50% 40%, oklch(0.4 0.22 340 / 0.35), transparent 60%);
  border: 1px solid var(--panel-stroke);
  position: relative;
  overflow: hidden;
}
.placeholder-art .stripe-label {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: oklch(0.9 0.02 300 / 0.8);
  text-transform: uppercase;
  background: oklch(0.08 0.04 300 / 0.8);
  padding: 8px 14px;
  border: 1px solid var(--panel-stroke);
  white-space: nowrap;
}

/* Ticker */
.ticker {
  overflow: hidden;
  border-top: 1px solid var(--panel-stroke);
  border-bottom: 1px solid var(--panel-stroke);
  background: oklch(0.08 0.04 300 / 0.85);
  padding: 14px 0;
}
.ticker-track {
  display: flex;
  gap: 48px;
  white-space: nowrap;
  animation: scroll-x 45s linear infinite;
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  letter-spacing: 0.22em;
  font-size: 13px;
  color: var(--ink-dim);
}
.ticker-track span.hl { color: var(--magenta); text-shadow: 0 0 12px var(--magenta); }
@keyframes scroll-x {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Equalizer bars (decorative) */
.eq { display: inline-flex; align-items: flex-end; gap: 3px; height: 18px; }
.eq i {
  display: block; width: 3px; background: var(--magenta);
  box-shadow: 0 0 6px var(--magenta);
  animation: eq 1.1s ease-in-out infinite;
}
.eq i:nth-child(1) { animation-delay: -0.2s; }
.eq i:nth-child(2) { animation-delay: -0.6s; background: var(--cyan); box-shadow: 0 0 6px var(--cyan); }
.eq i:nth-child(3) { animation-delay: -0.9s; }
.eq i:nth-child(4) { animation-delay: -0.4s; background: var(--cyan); box-shadow: 0 0 6px var(--cyan); }
.eq i:nth-child(5) { animation-delay: -1.0s; }
@keyframes eq {
  0%, 100% { height: 20%; }
  50% { height: 100%; }
}

/* Sakura petal */
.petal {
  position: fixed;
  top: -40px;
  width: 14px; height: 14px;
  background: radial-gradient(ellipse 60% 100% at 50% 0%, oklch(0.85 0.12 10), oklch(0.7 0.22 350));
  border-radius: 80% 0 80% 0;
  opacity: 0.6;
  pointer-events: none;
  z-index: 2;
  animation: fall linear infinite;
  filter: drop-shadow(0 0 6px oklch(0.7 0.22 340 / 0.5));
}
@keyframes fall {
  0%   { transform: translate(0, 0) rotate(0deg); opacity: 0; }
  10%  { opacity: 0.7; }
  100% { transform: translate(var(--dx, 80px), 110vh) rotate(720deg); opacity: 0; }
}

/* Spin (record) */
@keyframes spin { to { transform: rotate(360deg); } }
.spin { animation: spin 6s linear infinite; }

/* Pulse */
@keyframes pulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}
.pulse { animation: pulse 2.4s ease-in-out infinite; }

/* Section heading */
.sec-head {
  display: flex;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 36px;
}
.sec-head .tag {
  font-family: "JetBrains Mono", monospace;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}
.sec-head h2 {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  font-size: clamp(32px, 4.2vw, 58px);
  letter-spacing: 0.04em;
  line-height: 1;
}
.sec-head .sub {
  font-family: "JetBrains Mono", monospace;
  color: var(--ink-faint);
  font-size: 12px;
  letter-spacing: 0.2em;
  margin-left: auto;
  text-transform: uppercase;
}

/* Utility */
.hide-scroll::-webkit-scrollbar { display: none; }
.hide-scroll { scrollbar-width: none; }

@media (max-width: 1200px) { .side-rail { display: none !important; } }

/* Focus */
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

/* Cursor ring */
.cursor-ring {
  position: fixed;
  width: 28px; height: 28px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 999;
  transform: translate(-50%, -50%);
  mix-blend-mode: screen;
  filter: drop-shadow(0 0 8px var(--cyan));
  transition: width .2s, height .2s, border-color .2s;
}
@media (max-width: 720px) { .cursor-ring { display: none; } }