:root {
  --bg: #000;
  --red: #d1002e;
  --red-bright: #ff1e48;
  --txt-dim: #888;
  --white: #f5f5f5;
}

* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--white);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial,
    sans-serif;
  overflow: hidden;
}

.screen {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.6s ease;
}

.screen--center > * {
  pointer-events: auto;
}

#start {
  background: radial-gradient(
      ellipse at center,
      rgba(255, 0, 0, 0.04) 0%,
      transparent 45%
    )
    transparent;
}
#start.hide {
  opacity: 0;
}

#brand {
  position: absolute;
  top: 30%;
  width: 100%;
  text-align: center;
  letter-spacing: 0.35em;
  font-weight: 700;
  font-size: clamp(18px, 3.2vw, 50px);
  opacity: 0.08; /* very faint */
  color: var(--red);
  text-shadow: 0 0 2px rgba(255, 0, 32, 0.8), 0 0 6px rgba(255, 0, 32, 0.25),
    0 0 14px rgba(255, 0, 32, 0.12);
  animation: neonFlicker 6s linear infinite;
  mix-blend-mode: screen;
  user-select: none;
}

@keyframes neonFlicker {
  0%,
  7%,
  9%,
  10%,
  13%,
  20%,
  21%,
  100% {
    opacity: 0.8;
    filter: blur(0.5px);
  }
  8%,
  12%,
  19% {
    opacity: 0.22;
    filter: blur(1.6px);
  }
  50% {
    opacity: 0.4;
  }
}

.btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  appearance: none;
  background: transparent;
  color: var(--white);
  padding: 14px 32px;
  border: 1px solid #444;
  letter-spacing: 0.25em;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.25s ease, transform 0.12s ease;
}
.btn:hover {
  border-color: var(--red);
  transform: translateY(calc(-50% - 1px));
}
.btn:active {
  transform: translateY(calc(-50% + 1px)) scale(0.99);
}

.hint {
  position: absolute;
  top: calc(50% + 64px);
  transform: translateY(0);
  color: var(--txt-dim);
  font-size: 12px;
  letter-spacing: 0.14em;
}

#canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  display: block;
  opacity: 0;
  transition: opacity 0.75s ease;
  background: #000;
}

#canvas.active {
  opacity: 1;
}

#end {
  background: transparent;
  opacity: 0;
  pointer-events: none;
}
#end.show {
  opacity: 1;
}

.logo {
  width: clamp(90px, 16vw, 170px);
  filter: drop-shadow(0 0 16px rgba(255, 30, 72, 0.35));
  margin-bottom: 16px;
}
.end-title {
  margin: 0;
  font-weight: 800;
  letter-spacing: 0.32em;
}

/* small safe area for phones */
@supports (padding: max(0px)) {
  .screen {
    padding: max(16px, env(safe-area-inset-top))
      max(16px, env(safe-area-inset-right))
      max(16px, env(safe-area-inset-bottom))
      max(16px, env(safe-area-inset-left));
  }
}

/* Ebenenreihenfolge erzwingen */
#start {
  z-index: 3;
  position: fixed;
}
#end {
  z-index: 2;
  position: fixed;
}
#canvas {
  z-index: 1;
  position: fixed;
}

/* Canvas soll zu Beginn keine Klicks abfangen */
#canvas {
  pointer-events: none;
}

/* Sobald aktiv, darf es Events wieder bekommen */
#canvas.active {
  pointer-events: auto;
}

.rain-overlay {
  position: fixed;
  inset: 0;
  z-index: 15;             /* über Canvas, unter UI */
  pointer-events: none;
  mix-blend-mode: screen;  /* Schwarz vom Regenclip wird transparent */
}

.rain-overlay video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rain-overlay .rain-matte {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.813); /* halbtransparentes Grau */
}

/* RAIN – gothic title (unsichtbar bis Play) */
#trackTitle{
  position: absolute;
  top: 10%;
  width: 100%;
  text-align: center;
  pointer-events: none;
  user-select: none;
  animation: neonFlicker 6s linear infinite;

 -webkit-text-stroke: 1.5px #3a0008;
  font-family: "Saira", sans-serif;
  font-weight: 200;
  font-size: clamp(42px, 8vw, 140px);
  letter-spacing: 0.04em;

  color: var(--red);
  text-shadow:
    0 0 2px rgba(255,0,32,.85),
    0 0 10px rgba(255,0,32,.35),
    0 0 28px rgba(255,0,32,.18);

  opacity: 0;
  transform: translateY(6px);
  transition: opacity .45s ease, transform .45s ease;
  z-index: 99;              /* gleich wie #brand */
  mix-blend-mode: screen;
}
#trackTitle.show { opacity: 1; transform: translateY(0); }
#brand.fade-out    { opacity: 0 !important; transition: opacity .35s ease; }

/* Wenn .climax gesetzt wird (z. B. in doSwap()) */
.rain-overlay.climax .rain-matte {
  background: rgba(120, 0, 10, 0.75); /* kräftiges Blutrot */
}