/* ============================================
   ANIMATIONS — Senior-grade, subtle, intentional
   ============================================ */

/* Reduced Motion respektieren */
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-stagger > *, .stat-counter, .hover-lift, .card-tilt {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ---------- 1. Reveal on Scroll (Sections, Headlines, Text) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 800ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 800ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
/* Verzögerte Varianten für sequentielles Reveal */
.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 160ms; }
.reveal-delay-3 { transition-delay: 240ms; }
.reveal-delay-4 { transition-delay: 320ms; }
.reveal-delay-5 { transition-delay: 400ms; }

/* ---------- 2. Stagger Reveal (Cards in Reihe) ---------- */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 400ms; }
.reveal-stagger.is-visible > *:nth-child(7) { transition-delay: 480ms; }
.reveal-stagger.is-visible > *:nth-child(8) { transition-delay: 560ms; }
.reveal-stagger.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 3. Counter / Number Tickup ---------- */
.stat-counter {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

/* ---------- 4. Hero-Tagline Letter-Reveal ---------- */
.letter-reveal {
  opacity: 0;
  filter: blur(4px);
  display: inline-block;
  animation: letterIn 900ms cubic-bezier(0.16, 1, 0.3, 1) 200ms forwards;
}
@keyframes letterIn {
  to { opacity: 1; filter: blur(0); }
}

/* Hero-Headline word-by-word */
.headline-words {
  display: inline-block;
}
.headline-words .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(40%);
  filter: blur(8px);
  animation: wordIn 800ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes wordIn {
  to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

/* Words verzögert pro nth */
.headline-words .word:nth-child(1) { animation-delay: 0ms; }
.headline-words .word:nth-child(2) { animation-delay: 60ms; }
.headline-words .word:nth-child(3) { animation-delay: 120ms; }
.headline-words .word:nth-child(4) { animation-delay: 180ms; }
.headline-words .word:nth-child(5) { animation-delay: 240ms; }
.headline-words .word:nth-child(6) { animation-delay: 300ms; }
.headline-words .word:nth-child(7) { animation-delay: 360ms; }
.headline-words .word:nth-child(8) { animation-delay: 420ms; }
.headline-words .word:nth-child(9) { animation-delay: 480ms; }
.headline-words .word:nth-child(10) { animation-delay: 540ms; }
.headline-words .word:nth-child(11) { animation-delay: 600ms; }
.headline-words .word:nth-child(12) { animation-delay: 660ms; }

/* ---------- 5. Subtle Hero Background Parallax ---------- */
.hero__bg img {
  transition: transform 1.4s cubic-bezier(0.22, 1, 0.36, 1);
  transform: scale(1.08) translateY(0);
}
body.is-loaded .hero__bg img {
  transform: scale(1.04) translateY(0);
}
.hero__bg.parallax img {
  will-change: transform;
}

/* Magnetic CTA: Buttons mit subtiler Hover-Reaktion */
.btn-primary {
  transition: transform 280ms cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 280ms cubic-bezier(0.16, 1, 0.3, 1),
              background-color 200ms ease;
}
.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
}

/* Card-Lift on hover (für service-cards, job-cards, benefit-cards) */
.service-card, .job-card, .benefit-card, .usp-card {
  transition: transform 350ms cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 350ms cubic-bezier(0.16, 1, 0.3, 1),
              border-color 200ms ease;
}

/* Section-Border Glow when visible */
.section-glow {
  position: relative;
  isolation: isolate;
}
.section-glow::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(78, 184, 224, 0.06), transparent 60%);
  z-index: -1;
  opacity: 0;
  transition: opacity 1s ease;
  pointer-events: none;
}
.section-glow.is-visible::before { opacity: 1; }

/* Smooth-scroll global */
html { scroll-behavior: smooth; }

/* Image-Lazy Reveal */
img.fade-in-img {
  opacity: 0;
  transition: opacity 800ms ease;
}
img.fade-in-img.is-loaded { opacity: 1; }