:root {
  --ink: #171512;
  --paper: #f4f0e8;
  --sea: #1e6e70;
  --line: rgba(255, 255, 255, 0.14);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'Montserrat', Arial, sans-serif;
  color: #fff;
  background:
    radial-gradient(circle at top, rgba(30, 110, 112, 0.28), transparent 35%),
    linear-gradient(180deg, #101721 0%, #0a1018 100%);
}

.tour-screen {
  position: relative;
  width: 100%;
  height: 100svh;
  min-height: 100vh;
  overflow: hidden;
}

.tour-screen__header {
  position: fixed;
  top: 18px;
  left: 18px;
  right: 18px;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  pointer-events: none;
}

.tour-screen__back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  backdrop-filter: blur(14px);
  pointer-events: auto;
}

.tour-screen__back::before {
  content: '←';
  margin-right: 8px;
}

.tour-screen__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  text-align: right;
}

.tour-screen__eyebrow {
  color: rgba(255, 255, 255, 0.68);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tour-screen__copy h1 {
  margin: 0;
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 800;
  line-height: 1.05;
  text-shadow: 0 10px 32px rgba(0, 0, 0, 0.45);
}

.tour-screen__viewer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: #0a1018;
}

.tour-screen__viewer iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

@media (max-width: 720px) {
  .tour-screen__header {
    top: 12px;
    left: 12px;
    right: 12px;
    align-items: flex-start;
  }

  .tour-screen__copy {
    max-width: 54vw;
    text-align: left;
  }

  .tour-screen__eyebrow {
    display: none;
  }

  .tour-screen__copy h1 {
    font-size: 22px;
  }
}