:root {
  --bg: #0b0f19;
  --bg-card: #161d33;
  --text: #f4f6fb;
  --text-muted: #9aa3b8;
  --accent: #4285f4;
  --border: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
}

body, html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden; /* No scroll, iframe takes remaining space */
}

a {
  text-decoration: none;
  color: inherit;
}

a:focus-visible, button:focus-visible, iframe:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.tour-layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
}

.tour-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  gap: 16px;
}

.tour-header__left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.logo__img {
  height: 36px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

.logo__text-group {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.logo__brand {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--text);
}

.logo__brand span {
  color: var(--accent);
}

.logo__sub {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
}

.tour-header__center {
  flex: 1;
  text-align: center;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.tour-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tour-eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tour-header__right {
  flex-shrink: 0;
}

.btn-back {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  transition: color 0.15s, border-color 0.15s;
}

.btn-back:hover {
  color: var(--text);
  border-color: var(--accent);
}

.tour-main {
  flex: 1;
  position: relative;
  width: 100%;
}

.tour-iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

@media (max-width: 768px) {
  .tour-header {
    flex-wrap: wrap;
    padding: 12px 16px;
  }
  .tour-header__center {
    order: 3;
    flex-basis: 100%;
    margin-top: 8px;
    text-align: left;
  }
  .tour-title {
    font-size: 1rem;
    white-space: normal;
  }
}