:root {
  --color-primary: #1F2937;
  --color-secondary: #374151;
  --color-accent: #64748B;
}

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body { font-family: 'Manrope', system-ui, sans-serif; }

::selection { background: rgba(100, 116, 139, 0.25); }

a { text-underline-offset: 3px; }

button, .btn, [class*="btn-"], a[href="#order_form"] {
  white-space: nowrap;
  min-width: fit-content;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

form button[type="submit"] {
  white-space: normal;
  width: 100%;
}

[data-animate] {
  opacity: 0;
  transform: translateY(14px) scale(0.98);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.rotate-180 { transform: rotate(180deg); }

.decor-grid-dots {
  background-image: radial-gradient(circle at 1px 1px, rgba(31, 41, 55, 0.16) 1px, transparent 0);
  background-size: 22px 22px;
}
.decor-grid-lines {
  background-image:
    linear-gradient(to right, rgba(31, 41, 55, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31, 41, 55, 0.08) 1px, transparent 1px);
  background-size: 36px 36px;
}
.decor-diagonal {
  background-image: repeating-linear-gradient(135deg, rgba(31, 41, 55, 0.10) 0, rgba(31, 41, 55, 0.10) 1px, transparent 1px, transparent 10px);
}
.decor-mesh {
  background-image:
    radial-gradient(1200px 600px at 10% 20%, rgba(100, 116, 139, 0.20), transparent 55%),
    radial-gradient(900px 520px at 90% 35%, rgba(31, 41, 55, 0.14), transparent 55%),
    radial-gradient(800px 500px at 50% 100%, rgba(55, 65, 81, 0.16), transparent 60%);
}

.decor-subtle { opacity: 0.55; }
.decor-moderate { opacity: 0.8; }
.decor-bold { opacity: 1; }

.decor-gradient-blur::before,
.decor-gradient-blur::after {
  content: "";
  position: absolute;
  inset: auto;
  width: 420px;
  height: 420px;
  filter: blur(60px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
  border-radius: 9999px;
}
.decor-gradient-blur::before {
  top: -120px;
  left: -120px;
  background: radial-gradient(circle at 30% 30%, rgba(100, 116, 139, 0.75), transparent 60%);
}
.decor-gradient-blur::after {
  bottom: -140px;
  right: -140px;
  background: radial-gradient(circle at 60% 40%, rgba(31, 41, 55, 0.70), transparent 60%);
}

.decor-corner-tr::before {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle at 80% 20%, rgba(100, 116, 139, 0.35), transparent 60%);
  pointer-events: none;
}
.decor-corner-bl::before {
  content: "";
  position: absolute;
  bottom: -1px;
  left: -1px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle at 20% 80%, rgba(31, 41, 55, 0.22), transparent 60%);
  pointer-events: none;
}

.decor-glow-element {
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 9999px;
  filter: blur(70px);
  background: radial-gradient(circle at 50% 50%, rgba(100, 116, 139, 0.35), transparent 60%);
  opacity: 0.75;
  pointer-events: none;
}

.decor-rings-svg {
  background-image: radial-gradient(circle at center, rgba(100, 116, 139, 0.20) 0 1px, transparent 1px 18px, rgba(100, 116, 139, 0.14) 18px 19px, transparent 19px 40px);
  background-size: 220px 220px;
  background-position: center;
}

.focus-ring:focus {
  outline: 2px solid rgba(100, 116, 139, 0.55);
  outline-offset: 2px;
}

input[type="text"], input[type="tel"], input[type="email"], textarea, select {
  -webkit-tap-highlight-color: transparent;
}

input:disabled, button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-animate] { transition: none; }
}