:root {
  --blur: 8px; /* сила размытия фона */
  --darkness: 0.45; /* затемнение фона (0..1) */
  --accent: 255, 255, 255; /* цвет текста/кнопки (RGB) */
}

/* Сброс */
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
  color: white;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.bg-image {
  position: fixed;
  inset: 0;
  background-image: url("/RTE-business-innovatieve-investeringsplatforms/img/bg-st1.png");
  background-size: cover;
  background-position: center center;
  filter: blur(var(--blur)) brightness(calc(1 - var(--darkness)));
  transform: scale(1.05);
  z-index: -2;
}

.bg-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, var(--darkness));
  pointer-events: none;
}

.center {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  position: relative;
  z-index: 1;
}

h1 {
  margin: 0;
  font-size: clamp(1.6rem, 5vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-shadow: 0 6px 22px rgba(0, 0, 0, 0.6);
}

.btn {
  display: inline-block;
  margin-top: 1.25rem;
  padding: 0.85rem 1.6rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 24px;
  color: rgb(var(--accent));
  background: linear-gradient(
    90deg,
    rgba(255, 0, 0, 0.493),
    rgba(255, 208, 0, 0.747)
  );
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.12s ease;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.45);
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
.btn:hover {
  transform: translateY(-4px);
}
.btn:active {
  transform: translateY(-1px) scale(0.998);
}
.btn:focus {
  outline: 2px solid rgba(241, 0, 0, 0.479);
  outline-offset: 4px;
}

.bottom-right {
  position: fixed;
  right: 50%;
  transform: translate(50%, 0%);
  bottom: 1rem;
  z-index: 1;
}
.bottom-right a {
  color: white;
  font-size: 24px;
  text-decoration: none;
}

@media (max-width: 500px) {
  .bottom-right {
    right: 0.6rem;
    bottom: 0.6rem;
  }
  .bg-image {
    background-image: url("/RTE-business-innovatieve-investeringsplatforms/img/bg-st1.png");
  }
}

@media (max-width: 1400px) {
  .bottom-right {
    right: 0.6rem;
    bottom: 0.6rem;
  }
  .bg-image {
    background-image: url("/RTE-business-innovatieve-investeringsplatforms/img/bg-st1.png");
  }
}