:root {
  --color-primary: #0D4F6F;
  --color-secondary: #1E6B8A;
  --color-accent: #00BCD4;
}

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body { font-family: 'Plus Jakarta Sans', system-ui, sans-serif; text-rendering: optimizeLegibility; }

::selection { background: rgba(0, 188, 212, 0.22); }

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%;
}

.header-transparent {
  background: linear-gradient(to bottom, rgba(13,79,111,0.72), rgba(13,79,111,0.18));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.10);
  transition: background 260ms ease, border-color 260ms ease, box-shadow 260ms ease;
}

.header-transparent.is-solid {
  background: rgba(255,255,255,0.92);
  border-bottom: 1px solid rgba(17,24,39,0.08);
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
}

.header-transparent.is-solid a,
.header-transparent.is-solid button,
.header-transparent.is-solid i,
.header-transparent.is-solid span {
  color: rgb(17,24,39);
}

.header-transparent.is-solid .bg-white\/10 { background: rgba(17,24,39,0.06) !important; }
.header-transparent.is-solid .ring-white\/15,
.header-transparent.is-solid .ring-white\/10 { box-shadow: none !important; border-color: rgba(17,24,39,0.10) !important; }

.header-mobile-panel {
  background: rgba(13,79,111,0.86);
  border-top: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-transparent.is-solid .header-mobile-panel {
  background: rgba(255,255,255,0.98);
  border-top: 1px solid rgba(17,24,39,0.08);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  color: rgba(255,255,255,0.9);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.mobile-nav-link:hover {
  transform: translateY(-1px);
  background: rgba(255,255,255,0.10);
  border-color: rgba(255,255,255,0.16);
}

.header-transparent.is-solid .mobile-nav-link {
  color: rgb(17,24,39);
  background: rgba(17,24,39,0.04);
  border-color: rgba(17,24,39,0.08);
}

.header-transparent.is-solid .mobile-nav-link:hover {
  background: rgba(17,24,39,0.06);
  border-color: rgba(17,24,39,0.12);
}

.footer-link {
  color: rgba(209, 213, 219, 0.85);
  transition: color 160ms ease, opacity 160ms ease;
}
.footer-link:hover { color: #ffffff; opacity: 1; }

[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  will-change: transform, opacity;
}
[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

.decor-grid-dots {
  background-image: radial-gradient(rgba(13,79,111,0.28) 1px, transparent 1px);
  background-size: 18px 18px;
}

.decor-grid-lines {
  background-image:
    linear-gradient(to right, rgba(13,79,111,0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(13,79,111,0.16) 1px, transparent 1px);
  background-size: 44px 44px;
}

.decor-diagonal {
  background-image: repeating-linear-gradient(
    135deg,
    rgba(0,188,212,0.16),
    rgba(0,188,212,0.16) 1px,
    transparent 1px,
    transparent 14px
  );
}

.decor-mesh {
  background-image:
    radial-gradient(700px 260px at 12% 8%, rgba(0,188,212,0.18), transparent 60%),
    radial-gradient(640px 280px at 86% 18%, rgba(30,107,138,0.22), transparent 62%),
    radial-gradient(740px 300px at 46% 110%, rgba(13,79,111,0.18), transparent 60%);
}

.decor-gradient-blur::before,
.decor-gradient-blur::after {
  content: "";
  position: absolute;
  inset: auto;
  pointer-events: none;
  filter: blur(48px);
  opacity: 0.9;
}
.decor-gradient-blur::before {
  width: 360px;
  height: 360px;
  left: -120px;
  top: -120px;
  background: radial-gradient(circle at 30% 30%, rgba(0,188,212,0.35), transparent 62%);
}
.decor-gradient-blur::after {
  width: 420px;
  height: 420px;
  right: -160px;
  bottom: -180px;
  background: radial-gradient(circle at 60% 40%, rgba(30,107,138,0.32), transparent 62%);
}

.decor-corner-tr::before,
.decor-corner-bl::before {
  content: "";
  position: absolute;
  pointer-events: none;
  width: 180px;
  height: 180px;
  border-radius: 36px;
  opacity: 0.22;
  filter: blur(1px);
}
.decor-corner-tr::before {
  top: -70px;
  right: -70px;
  background: linear-gradient(135deg, rgba(0,188,212,0.6), rgba(13,79,111,0.0));
}
.decor-corner-bl::before {
  bottom: -70px;
  left: -70px;
  background: linear-gradient(315deg, rgba(0,188,212,0.5), rgba(13,79,111,0.0));
}

.decor-glow-element {
  position: relative;
}
.decor-glow-element::before {
  content: "";
  position: absolute;
  inset: -18%;
  background: radial-gradient(circle at 50% 40%, rgba(0,188,212,0.22), transparent 60%);
  filter: blur(26px);
  opacity: 0.95;
  pointer-events: none;
}

.decor-rings-svg {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='540' height='540' viewBox='0 0 540 540'%3E%3Cg fill='none' stroke='%2300BCD4' stroke-opacity='0.22'%3E%3Ccircle cx='270' cy='270' r='70'/%3E%3Ccircle cx='270' cy='270' r='120'/%3E%3Ccircle cx='270' cy='270' r='170'/%3E%3Ccircle cx='270' cy='270' r='220'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 520px 520px;
}

.decor-subtle { opacity: 0.06; }
.decor-moderate { opacity: 0.10; }
.decor-bold { opacity: 0.18; }

.focus-ring:focus { outline: none; box-shadow: 0 0 0 4px rgba(0,188,212,0.22); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-animate] { transition: none; }
  .mobile-nav-link { transition: none; }
  .header-transparent { transition: none; }
}