/* ===== Willkommens-Intro (bei jedem Seitenaufruf) ===== */
.welcome {
  position: fixed; inset: 0; z-index: 10000;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 1.6rem; padding: 2rem; text-align: center; overflow: hidden;
  background: radial-gradient(ellipse at 50% 60%, #1c0503 0%, #0a0a0c 55%, #000 100%);
  color: #f5f5f2;
  font-family: "Bahnschrift", "DIN Alternate", "Barlow Semi Condensed", "Roboto Condensed", "Arial Narrow", system-ui, sans-serif;
  transition: opacity .7s ease, transform .7s cubic-bezier(.7, 0, .3, 1), filter .7s ease;
}
.welcome.is-leaving { opacity: 0; transform: scale(1.35); filter: blur(6px); pointer-events: none; }
html.welcome-open, html.welcome-open body { overflow: hidden; }

/* Speed-Lines */
.welcome-lines { position: absolute; inset: 0; pointer-events: none; }
.welcome-lines span {
  position: absolute; left: -40%; height: 2px; width: 30%;
  background: linear-gradient(90deg, transparent, rgba(225, 6, 0, .9), #fff);
  border-radius: 2px; opacity: 0;
  animation: welcome-streak linear infinite;
}
@keyframes welcome-streak {
  0%   { transform: translateX(0); opacity: 0; }
  10%  { opacity: 1; }
  100% { transform: translateX(480%); opacity: 0; }
}

/* Asphalt-Streifen unten */
.welcome-road {
  position: absolute; left: 0; right: -120px; bottom: 9%; height: 4px; pointer-events: none;
  background: repeating-linear-gradient(90deg, #fff 0 60px, transparent 60px 120px);
  opacity: .18; animation: welcome-road .35s linear infinite;
}
/* nur transform/opacity animieren: läuft auch flüssig, während die Seite im Hintergrund lädt */
@keyframes welcome-road { to { transform: translateX(-120px); } }

/* Solange die Seite noch lädt: Ampel "glimmt" (Startampel startet danach) */
.welcome:not(.is-ready) .welcome-lights { animation: welcome-idle .9s ease-in-out infinite alternate; }
.welcome-lights { position: relative; }
.welcome:not(.is-ready) .welcome-lights::after {
  content: "Warming up the engine…"; position: absolute; left: 50%; top: calc(100% + .8rem); transform: translateX(-50%);
  white-space: nowrap; font-size: .85rem; letter-spacing: .2em; text-transform: uppercase; color: #8c8c88;
}
@keyframes welcome-idle { from { opacity: .35; } to { opacity: 1; } }

.welcome > *:not(.welcome-lines):not(.welcome-road) { position: relative; z-index: 1; }

.welcome-logo {
  width: min(420px, 75vw); height: auto;
  opacity: 0; animation: welcome-drop .8s cubic-bezier(.2, 1.4, .4, 1) .1s forwards;
}
@keyframes welcome-drop { from { opacity: 0; transform: translateY(-30px) scale(.9); } to { opacity: 1; transform: none; } }

/* Startampel */
.welcome-lights { display: flex; gap: clamp(.5rem, 2vw, 1rem); padding: .8rem 1.1rem; background: #111; border-radius: 10px; box-shadow: 0 0 0 2px #222, 0 10px 30px rgba(0,0,0,.6); }
.welcome-lights i {
  display: block; width: clamp(26px, 6vw, 44px); aspect-ratio: 1; border-radius: 50%;
  background: #2a0b0a; box-shadow: inset 0 3px 6px rgba(0,0,0,.7);
  transition: background .12s, box-shadow .12s;
}
.welcome-lights i.on { background: #ff1a10; box-shadow: 0 0 18px 4px rgba(255, 26, 16, .75), inset 0 -3px 6px rgba(0,0,0,.3); }
.welcome-lights.go i { background: #19e36b; box-shadow: 0 0 18px 4px rgba(25, 227, 107, .7); }

.welcome-title {
  margin: 0; font-size: clamp(2.2rem, 8vw, 5.2rem); font-weight: 800; line-height: .95;
  text-transform: uppercase; letter-spacing: .02em; font-style: italic;
}
.welcome-title span { display: inline-block; opacity: 0; transform: translateX(-60px) skewX(-12deg); }
.welcome.show-text .welcome-title span { animation: welcome-slide .55s cubic-bezier(.2, .9, .3, 1.2) forwards; }
.welcome-title .accent { color: #e10600; text-shadow: 0 0 24px rgba(225, 6, 0, .55); }
@keyframes welcome-slide { to { opacity: 1; transform: none; } }

.welcome-sub {
  margin: 0; font-size: clamp(1rem, 3vw, 1.5rem); text-transform: uppercase; letter-spacing: .18em;
  color: #c9c9c4; opacity: 0;
}
.welcome.show-text .welcome-sub { animation: welcome-fade .6s ease .55s forwards; }
.welcome-sub b { color: #fff; }
@keyframes welcome-fade { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

.welcome-go {
  font: inherit; font-size: 1.15rem; font-weight: 700; text-transform: uppercase; letter-spacing: .14em;
  color: #fff; background: #e10600; border: 0; border-radius: 4px; padding: .9rem 2.4rem; cursor: pointer;
  clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%);
  opacity: 0; pointer-events: none;
  transition: transform .15s, background .15s;
}
.welcome.show-text .welcome-go { animation: welcome-fade .5s ease 1s forwards, welcome-pulse 1.6s ease-in-out 1.6s infinite; pointer-events: auto; }
.welcome-go:hover, .welcome-go:focus-visible { background: #ff2a20; transform: scale(1.06); outline: none; }
@keyframes welcome-pulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(225, 6, 0, .6); } 50% { box-shadow: 0 0 0 14px rgba(225, 6, 0, 0); } }

.welcome-skip {
  position: absolute !important; top: 1rem; right: 1rem; z-index: 2;
  font: inherit; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase;
  color: #8c8c88; background: none; border: 1px solid #333; border-radius: 3px; padding: .4rem .8rem; cursor: pointer;
}
.welcome-skip:hover { color: #fff; border-color: #666; }

/* Kurzes Aufblitzen bei "Lights out" */
.welcome.flash::after {
  content: ""; position: absolute; inset: 0; background: #fff; pointer-events: none; z-index: 3;
  animation: welcome-flash .35s ease-out forwards;
}
@keyframes welcome-flash { from { opacity: .35; } to { opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  .welcome, .welcome * { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition: none !important; }
  .welcome-lines, .welcome-road { display: none; }
}