:root{
  --bg-black: #090909;
  --bg-deep: #0d0d0d;
  --violet: #6A0DAD;
  --magenta: #FF00FF;
  --cyan: #00FFF7;
  --white: #ffffff;

  --panel-bg: rgba(0,0,0,0.34);
  --panel-border: rgba(0,255,247,0.16);
  --panel-shadow: 0 0 28px rgba(255,0,255,0.08);

  --text-main: rgba(255,255,255,0.92);
  --text-soft: rgba(255,255,255,0.80);
  --text-faint: rgba(255,255,255,0.72);

  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --pill: 999px;

  --max-wide: 1100px;
  --max-medium: 900px;
}

*{
  box-sizing: border-box;
}

html, body{
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: Arial, sans-serif;
  color: var(--white);
}

a{
  color: inherit;
}

img{
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---------- Shared backgrounds ---------- */
body.lab-home{
  overflow: hidden;
  height: 100%;
  width: 100%;
  background: linear-gradient(135deg, #0D0D0D, #6A0DAD, #FF00FF, #0D0D0D);
  background-size: 400% 400%;
  animation: gradientMove 15s ease infinite;
  touch-action: manipulation;
}

body.music-page{
  background:
    radial-gradient(circle at top, rgba(255,0,255,0.14), transparent 35%),
    radial-gradient(circle at bottom right, rgba(0,255,247,0.14), transparent 30%),
    linear-gradient(135deg, #090909, #1a0824, #13061d, #090909);
  background-attachment: fixed;
}

body.about-page{
  background:
    radial-gradient(circle at top left, rgba(0,255,247,0.12), transparent 28%),
    radial-gradient(circle at bottom right, rgba(255,0,255,0.14), transparent 30%),
    linear-gradient(135deg, #070707, #16071f, #0c0c0c);
  background-attachment: fixed;
}

@keyframes gradientMove {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ---------- Background overlays for content pages ---------- */
body.music-page::before{
  content: "";
  position: fixed;
  inset: 0;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(255,255,255,0.02) 0,
      rgba(255,255,255,0.02) 1px,
      transparent 1px,
      transparent 4px
    );
  pointer-events: none;
  opacity: 0.25;
}

body.about-page::before{
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.20;
  pointer-events: none;
}

/* ---------- Shared nav ---------- */
.topbar{
  z-index: 20;
  display: flex;
  justify-content: center;
  padding: calc(12px + env(safe-area-inset-top)) 12px 12px;
}

.topbar.sticky{
  position: sticky;
  top: 0;
  background: rgba(0,0,0,0.30);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,255,247,0.12);
}

.topbar.absolute{
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  pointer-events: none;
}

.nav{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  pointer-events: auto;
  background: rgba(0,0,0,0.30);
  border: 1px solid rgba(0,255,247,0.22);
  border-radius: var(--pill);
  padding: 10px 14px;
  box-shadow: 0 0 24px rgba(0,255,247,0.08);
  backdrop-filter: blur(8px);
}

.nav a{
  color: var(--cyan);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 8px 14px;
  border-radius: var(--pill);
  transition: 0.25s ease;
  text-shadow: 0 0 8px rgba(0,255,247,0.4);
}

.nav a:hover,
.nav a.active{
  color: #fff;
  background: rgba(255,0,255,0.18);
  box-shadow: 0 0 16px rgba(255,0,255,0.22);
}

/* ---------- Shared containers ---------- */
.wrap-wide{
  width: min(var(--max-wide), calc(100% - 30px));
  margin: 0 auto;
  padding: 32px 0 50px;
  position: relative;
  z-index: 1;
}

.wrap-medium{
  width: min(var(--max-medium), calc(100% - 30px));
  margin: 0 auto;
  padding: 34px 0 60px;
  position: relative;
  z-index: 1;
}

.panel{
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--panel-shadow);
  backdrop-filter: blur(8px);
}

.panel-large{
  padding: 26px;
}

.kicker{
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  margin-bottom: 10px;
}

h1, h2, h3{
  margin-top: 0;
}

h1{
  font-size: 2rem;
  color: #fff;
  text-shadow: 0 0 14px rgba(0,255,247,0.20);
  margin-bottom: 12px;
}

h2{
  color: var(--cyan);
  margin-bottom: 14px;
}

p{
  line-height: 1.65;
  color: var(--text-main);
}

/* ---------- Shared buttons ---------- */
.links{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn{
  display: inline-block;
  text-decoration: none;
  color: white;
  padding: 10px 14px;
  border-radius: var(--pill);
  border: 1px solid rgba(0,255,247,0.25);
  background: rgba(0,255,247,0.08);
  transition: 0.25s ease;
}

.btn:hover{
  background: rgba(255,0,255,0.16);
  border-color: rgba(255,0,255,0.28);
  box-shadow: 0 0 16px rgba(255,0,255,0.18);
}

.note{
  font-size: 0.92rem;
  color: var(--text-faint);
}

/* ---------- Shared footer ---------- */
.footer{
  text-align: center;
  padding: 24px 12px calc(24px + env(safe-area-inset-bottom));
  color: rgba(255,255,255,0.82);
  position: relative;
  z-index: 1;
}

/* ---------- Home page ---------- */
canvas#visualizer{
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  z-index: 1;
}

.home-title{
  position: absolute;
  top: 86px;
  width: 100%;
  text-align: center;
  font-size: 2em;
  color: var(--cyan);
  text-shadow: 0 0 10px var(--cyan), 0 0 20px var(--magenta);
  pointer-events: none;
  z-index: 3;
  padding: 0 14px;
}

.home-subtitle{
  position: absolute;
  top: 132px;
  width: 100%;
  text-align: center;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.88);
  text-shadow: 0 0 10px rgba(0,0,0,0.55);
  pointer-events: none;
  z-index: 3;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0 18px;
}

#coverArt{
  position: absolute;
  bottom: 30%;
  left: 50%;
  transform: translateX(-50%) scale(1.2) rotate(0deg);
  width: 220px;
  max-width: 55%;
  border-radius: 12px;
  z-index: 3;
  transition: transform 0.1s ease;
  cursor: pointer;
  box-shadow: 0 0 0 1px rgba(0,255,247,0.25), 0 0 35px rgba(255,0,255,0.12);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

#glow{
  position: absolute;
  bottom: 30%;
  left: 50%;
  transform: translateX(-50%);
  width: 220px;
  max-width: 55%;
  height: 220px;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(60px);
  z-index: 2;
}

#flash{
  position: absolute;
  inset: 0;
  background: white;
  opacity: 0;
  pointer-events: none;
  z-index: 5;
}

.home-note{
  position: absolute;
  left: 50%;
  bottom: 110px;
  transform: translateX(-50%);
  width: min(720px, calc(100% - 30px));
  text-align: center;
  z-index: 4;
  background: rgba(0,0,0,0.22);
  border: 1px solid rgba(0,255,247,0.18);
  border-radius: 18px;
  padding: 14px 16px;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.90);
  text-shadow: 0 0 10px rgba(0,0,0,0.55);
  box-shadow: 0 0 22px rgba(255,0,255,0.10);
  backdrop-filter: blur(6px);
  pointer-events: none;
}

.home-copyright{
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  text-align: center;
  padding: 14px 10px calc(14px + env(safe-area-inset-bottom));
  z-index: 4;
  pointer-events: none;
  opacity: 0.95;
  text-shadow: 0 0 10px rgba(0,0,0,0.6);
}

/* ---------- Music page ---------- */
.hero{
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  align-items: center;
  margin-bottom: 30px;
}

.hero-art{
  width: 100%;
  border-radius: 18px;
  box-shadow: 0 0 0 1px rgba(0,255,247,0.20), 0 0 28px rgba(255,0,255,0.10);
}

.grid-2{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-top: 22px;
}

.track-list{
  display: grid;
  gap: 14px;
}

.track{
  padding: 16px;
  border-radius: 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,0,255,0.12);
}

.track h3{
  margin: 0 0 8px;
  color: #fff;
  font-size: 1.08rem;
}

.track p{
  margin: 0 0 12px;
  font-size: 0.95rem;
}

/* ---------- About page ---------- */
.quote{
  margin-top: 22px;
  padding: 18px;
  border-left: 4px solid var(--cyan);
  background: rgba(255,255,255,0.03);
  border-radius: 14px;
  color: rgba(255,255,255,0.88);
  font-style: italic;
}

/* ---------- Responsive ---------- */
@media (max-width: 850px){
  .hero,
  .grid-2{
    grid-template-columns: 1fr;
  }

  .hero-art{
    max-width: 320px;
    margin: 0 auto;
  }
}

@media (max-width: 700px){
  .home-title{
    top: 98px;
    font-size: 1.55em;
  }

  .home-subtitle{
    top: 136px;
    font-size: 0.78rem;
  }

  .home-note{
    bottom: 90px;
    font-size: 0.88rem;
  }

  #coverArt{
    width: 190px;
    max-width: 62%;
  }
}