:root {
  box-sizing: border-box;
  --bg-main: #111216;
  --bg-right-column: rgba(22, 25, 27, 0.85);
  --circle-left-bg: #000000;
  --circle-right-bg: #111216;
  --gradient-start: #000000;
  --gradient-end: #1c1d24;
  --btn-bg-normal: #d9d9d6;
  --btn-bg-hover: #b8936d;
  --btn-text: #111216;
  --text-light: #ffffff;
  --font-primary: 'Montserrat', system-ui, -apple-system, sans-serif;
}

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

body {
  min-height: 100vh;
  background-color: var(--bg-main);
  color: var(--text-light);
  font-family: var(--font-primary);
  overflow-x: hidden;
}

.brand-header {
  position: absolute;
  top: 2rem;
  left: 2rem;
  z-index: 10;
}

.company-name {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.grid-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  min-height: 100vh;
  position: relative;
}

.left-column {
  position: relative;
  z-index: 1;
}

.right-column {
  background-color: var(--bg-right-column);
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  padding: 5rem 10% 5rem 15%;
}

.center-circle {
  position: absolute;
  top: 50%;
  left: 34%;
  /* transform wird nun durch die Animation gesteuert */
  width: clamp(280px, 35vw, 450px);
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  z-index: 2;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  pointer-events: none;
  
  /* NEU: Schwebender Effekt für Desktop */
  animation: float-desktop 5s ease-in-out infinite;
}

/* NEU: Animations-Schritte für Desktop */
@keyframes float-desktop {
  0%, 100% {
    transform: translate(-50%, -50%);
  }
  50% {
    transform: translate(-50%, calc(-50% - 20px));
  }
}

.circle-half-left {
  width: 50%;
  height: 100%;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  display: flex;
  justify-content: center;
  align-items: center;
}

.circle-half-right {
  width: 50%;
  height: 100%;
  background-color: var(--circle-right-bg);
}

.logo {
  max-width: 55%;
  height: auto;
  opacity: 0.9;
}

.content {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  max-width: 500px;
}

.content h1 {
  font-size: clamp(2.5rem, 4.5vw, 4rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 2px;
}

.content p {
  font-size: 1.1rem;
  line-height: 1.7;
  opacity: 0.8;
}

.btn-contact {
  display: inline-flex;
  align-self: flex-start;
  padding: 0.9rem 2.2rem;
  background-color: var(--btn-bg-normal);
  color: var(--btn-text);
  text-decoration: none;
  font-weight: 600;
  border-radius: 4px;
  letter-spacing: 0.5px;
  transition: background-color 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), transform 0.2s ease;
}

.btn-contact:hover {
  background-color: var(--btn-bg-hover);
  transform: translateY(-2px);
}

.btn-contact:active {
  transform: translateY(0);
}

@media (max-width: 768px) {
  .grid-container {
    grid-template-columns: 1fr;
  }
  
  .left-column {
    height: 120px;
  }

  .right-column {
    padding: 3rem 2rem 5rem 2rem;
    background-color: rgba(22, 25, 27, 0.95);
    align-items: center;
    justify-content: center;
  }
  
  .brand-header {
    top: 2rem;
    left: 2rem;
  }
  
  .center-circle {
    top: 42%;
    left: 50%;
    width: clamp(220px, 50vw, 300px);
    
    /* NEU: Wechsel auf die Mobile-Animation (inklusive 90 Grad Drehung) */
    animation: float-mobile 5s ease-in-out infinite;
  }

  /* Logo gegen die Parent-Rotation ausgleichen */
  .center-circle .logo {
    transform: rotate(-90deg);
    transition: transform 0.3s ease;
  }
}

/* NEU: Animations-Schritte für Mobile (inkl. Rotation) */
@keyframes float-mobile {
  0%, 100% {
    transform: translate(-50%, -50%) rotate(90deg);
  }
  50% {
    /* Bewegt den Kreis optisch nach oben, während die Drehung bestehen bleibt */
    transform: translate(-50%, calc(-50% - 20px)) rotate(90deg);
  }
}