:root {
  --dur-fast: 200ms;
  --dur-base: 300ms;
  --dur-reveal: 600ms;
  --dur-hero: 700ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate] {
  opacity: 0;
  transition: opacity var(--dur-reveal) var(--ease-out),
              transform var(--dur-reveal) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
[data-animate],
[data-animate="fade-up"]   { transform: translateY(28px); }
[data-animate="fade"]      { transform: none; }
[data-animate="fade-left"] { transform: translateX(-28px); }
[data-animate="fade-right"]{ transform: translateX(28px); }
[data-animate="scale-in"]  { transform: scale(0.96); }
[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

.stagger-grid > [data-animate]:nth-child(1) { --reveal-delay: 0ms; }
.stagger-grid > [data-animate]:nth-child(2) { --reveal-delay: 80ms; }
.stagger-grid > [data-animate]:nth-child(3) { --reveal-delay: 160ms; }
.stagger-grid > [data-animate]:nth-child(4) { --reveal-delay: 240ms; }
.stagger-grid > [data-animate]:nth-child(5) { --reveal-delay: 320ms; }
.stagger-grid > [data-animate]:nth-child(6) { --reveal-delay: 400ms; }

@keyframes sat-hero-in {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-anim { opacity: 0; animation: sat-hero-in var(--dur-hero) var(--ease-out) forwards; }
.hero-anim-eyebrow    { animation-delay: 0ms;   }
.hero-anim-heading    { animation-delay: 80ms;  }
.hero-anim-subheading { animation-delay: 240ms; }
.hero-anim-cta        { animation-delay: 420ms; }

.btn-glow {
  position: relative;
  transition: transform var(--dur-fast) var(--ease-standard),
              box-shadow var(--dur-fast) var(--ease-standard),
              background-color var(--dur-fast) var(--ease-standard);
  box-shadow: 0 0 0 rgba(255, 42, 58, 0);
  will-change: transform, box-shadow;
}
.btn-glow:hover, .btn-glow:focus-visible {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 0 18px 2px var(--glow), 0 0 40px 6px rgba(255, 42, 58, 0.25);
}
.btn-glow:active { transform: translateY(0) scale(0.98); box-shadow: 0 0 10px 1px var(--glow); transition-duration: 100ms; }
.btn-glow:disabled, .btn-glow[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }

.card-hover {
  transition: transform var(--dur-base) var(--ease-standard),
              box-shadow var(--dur-base) var(--ease-standard),
              border-color var(--dur-base) var(--ease-standard);
}
.card-hover:hover, .card-hover:focus-within {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45), 0 0 16px rgba(255, 42, 58, 0.18);
  border-color: rgba(255, 42, 58, 0.4);
}

.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
@keyframes sat-pulse-glow {
  0%, 100% { box-shadow: 0 0 4px 0 var(--glow); opacity: 1; }
  50%      { box-shadow: 0 0 14px 4px var(--glow); opacity: 0.85; }
}
.pulse-glow { animation: sat-pulse-glow 2.4s ease-in-out infinite; }
@keyframes sat-logo-pulse {
  0%, 100% { filter: drop-shadow(0 0 2px var(--glow)); }
  50%      { filter: drop-shadow(0 0 10px var(--glow)); }
}
.logo-pulse { animation: sat-logo-pulse 3s ease-in-out infinite; }

.dropzone {
  border: 2px dashed rgba(240, 233, 234, 0.15);
  border-radius: 8px;
  background-color: transparent;
  transition: border-color var(--dur-fast) var(--ease-standard),
              box-shadow var(--dur-fast) var(--ease-standard),
              background-color var(--dur-fast) var(--ease-standard);
}
.dropzone.is-dragover {
  border-color: var(--accent);
  background-color: rgba(255, 42, 58, 0.04);
  box-shadow: 0 0 0 3px rgba(255, 42, 58, 0.15), 0 0 24px rgba(255, 42, 58, 0.25);
}

.nav-link { position: relative; padding-bottom: 4px; text-decoration: none; }
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 2px;
  background: var(--accent); transform: scaleX(0); transform-origin: right center;
  transition: transform var(--dur-fast) var(--ease-standard);
}
.nav-link:hover::after, .nav-link:focus-visible::after, .nav-link.is-active::after {
  transform: scaleX(1); transform-origin: left center;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-animate] { opacity: 1 !important; transform: none !important; transition: none !important; }
  .hero-anim { opacity: 1 !important; animation: none !important; }
  .pulse-glow, .logo-pulse { animation: none !important; }
}