:root {
  --bg: #0b0f13;
  --surface: #141a20;
  --text: #f3f5f7;
  --muted: #a3adb8;
  --accent: #8ea3b8;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background-color: var(--bg);
  color: var(--text);
}

.lang-cz,
.lang-en {
  display: block;
}

.lang-en {
  margin-top: 0.1rem;
  color: currentColor;
  opacity: 0.78;
  font-size: 0.72em;
  font-weight: 400;
}

.menu-icon {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
}

.menu-icon > span {
  width: 13px;
  height: 1px;
  display: block;
  background: rgba(243, 245, 247, 0.82);
}

.hero-sheen::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.08), transparent 34%),
    radial-gradient(circle at 72% 12%, rgba(255, 255, 255, 0.16), transparent 30%);
  mix-blend-mode: screen;
}

[data-site-header] {
  transition:
    background-color 220ms ease,
    border-color 220ms ease,
    backdrop-filter 220ms ease;
}

[data-site-header].is-scrolled {
  background: rgba(8, 12, 16, 0.72);
  border-color: rgba(255, 255, 255, 0.24);
  backdrop-filter: blur(8px);
}

.hero-grid {
  background-image:
    radial-gradient(circle at 70% 20%, rgba(255, 255, 255, 0.18), transparent 40%),
    linear-gradient(130deg, rgba(9, 13, 17, 0.88) 18%, rgba(24, 31, 39, 0.92) 52%, rgba(12, 18, 24, 0.88) 100%);
}

.hero-grid::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      to right,
      transparent 0,
      transparent 58px,
      rgba(255, 255, 255, 0.045) 58px,
      rgba(255, 255, 255, 0.045) 59px
    ),
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 58px,
      rgba(255, 255, 255, 0.03) 58px,
      rgba(255, 255, 255, 0.03) 59px
    );
  opacity: 0.55;
}

.surface-map {
  background:
    radial-gradient(circle at 15% 18%, rgba(22, 33, 42, 0.14), transparent 36%),
    linear-gradient(180deg, #f0f3f6, #e5eaef);
}

.inquiry-panel {
  background: rgba(215, 221, 227, 0.92);
  color: #0b0f13;
}

.map-frame {
  transition: opacity 260ms ease;
}

.parallax-layer {
  --parallax-y: 0px;
  --parallax-scale: 1;
  transform: translate3d(0, var(--parallax-y), 0) scale(var(--parallax-scale));
  will-change: transform;
}

[data-animate-in] {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 500ms ease,
    transform 500ms ease;
}

[data-animate-in].is-in {
  opacity: 1;
  transform: translateY(0);
}

.form-label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(11, 15, 19, 0.86);
}

.form-control {
  width: 100%;
  border-radius: 0.6rem;
  border: 1px solid rgba(11, 15, 19, 0.13);
  background: rgba(255, 255, 255, 0.88);
  padding: 0.72rem 0.8rem;
  color: #0b0f13;
  transition:
    border-color 140ms ease,
    box-shadow 140ms ease;
}

.form-control:focus-visible {
  outline: none;
  border-color: rgba(11, 15, 19, 0.4);
  box-shadow: 0 0 0 3px rgba(11, 15, 19, 0.1);
}

.form-control[aria-invalid="true"] {
  border-color: rgba(194, 71, 71, 0.8);
  box-shadow: 0 0 0 3px rgba(194, 71, 71, 0.18);
}

.field-error {
  margin-top: 0.34rem;
  color: #8a2727;
  font-size: 0.78rem;
}

@media (max-width: 767px) {
  .lang-en {
    font-size: 0.78em;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .parallax-layer,
  [data-animate-in] {
    transform: none !important;
    transition: none !important;
    opacity: 1 !important;
  }
}