.site-guide {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: 1100;
  width: min(380px, calc(100vw - 2rem));
  color: #fffdf8;
  font: 400 .9rem/1.5 "Instrument Sans", sans-serif;
  pointer-events: none;
}
.site-guide [hidden] { display: none !important; }
.site-guide :is(button, a, .site-guide-panel) { pointer-events: auto; }
.site-guide button { font: inherit; cursor: pointer; color: inherit; }
.site-guide :is(button, a):focus-visible { outline: 2px solid #73d5ff; outline-offset: 3px; }
.site-guide-launcher {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .65rem;
  margin-left: auto;
  min-height: 50px;
  padding: .7rem 1.1rem;
  border: 1px solid #73d5ff;
  border-radius: 3px;
  background: linear-gradient(125deg, #086bb0, #084b7a);
  box-shadow: 0 8px 28px #0006, inset 0 2px 0 #73d5ff55;
  font-weight: 700 !important;
}
.site-guide-launcher:hover { background: #086ba5; }
.site-guide-panel {
  display: flex;
  flex-direction: column;
  margin-bottom: .8rem;
  max-height: min(630px, calc(100vh - 110px));
  max-height: min(630px, calc(100dvh - 110px - env(safe-area-inset-bottom)));
  border: 1px solid #377b9e;
  border-top: 3px solid #73d5ff;
  border-radius: 3px;
  background: #0c1c29;
  box-shadow: 0 16px 60px #0009;
}
.site-guide-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 1.2rem; background: linear-gradient(115deg, #183e55, #102536); border-bottom: 1px solid #73d5ff30; }
.site-guide-header p { margin: 0; color: #73d5ff; font: 500 .6rem/1.5 "IBM Plex Mono", monospace; letter-spacing: .14em; text-transform: uppercase; }
.site-guide-header h2 { margin: .2rem 0 0; font: 600 2rem/.95 "Teko", sans-serif; text-transform: uppercase; letter-spacing: .03em; color: #fffdf8; }
.site-guide .site-guide-close,
.site-guide .site-guide-dismiss { flex-shrink: 0; width: 44px; height: 44px; padding: 0; border: 0; background: transparent; font-size: 1.7rem; line-height: 1; }
.site-guide .site-guide-close:hover,
.site-guide .site-guide-dismiss:hover { color: #73d5ff; background: #ffffff08; }
.site-guide-content { padding: 1.2rem; min-height: 0; overflow-y: auto; overscroll-behavior: contain; scrollbar-color: #377b9e #0c1c29; }
.site-guide-topic { margin: 0 0 .6rem; color: #fffdf8; font: 700 1.12rem/1.3 "Instrument Sans", sans-serif; text-transform: none; }
.site-guide-topic:focus { outline: none; }
.site-guide-answer { margin: 0; color: #c5d6e0; font-size: .88rem; }
.site-guide-options { display: grid; gap: .6rem; margin-top: 1.1rem; }
.site-guide-options :is(button, a) { display: block; width: 100%; min-height: 44px; padding: .7rem .85rem; border: 1px solid #73d5ff40; border-radius: 2px; background: #163244; color: #f4fbff; font: 600 .84rem/1.4 "Instrument Sans", sans-serif; text-align: left; text-decoration: none; }
.site-guide-options a { border-left: 3px solid #73d5ff; }
.site-guide-options :is(button, a):hover { background: #20506a; border-color: #73d5ff; }
.site-guide .site-guide-back { padding: .6rem 0; margin-top: .6rem; min-height: 44px; border: 0; background: transparent; color: #73d5ff; font-size: .82rem; }
.site-guide-note { flex-shrink: 0; margin: 0; padding: .7rem 1.2rem; border-top: 1px solid #ffffff14; color: #a9bdc9; font-size: .7rem; }
.site-guide-nudge { display: flex; align-items: center; margin: 0 0 .75rem auto; width: fit-content; max-width: 100%; border: 1px solid #377b9e; border-left: 3px solid #73d5ff; border-radius: 3px; background: #102a3a; box-shadow: 0 10px 35px #0006; pointer-events: auto; }
.site-guide .site-guide-invite { min-height: 50px; padding: .65rem .85rem; border: 0; background: transparent; font-size: .8rem; text-align: left; }
body.nav-open .site-guide { visibility: hidden; }
@media (max-width: 480px) {
  .site-guide { right: max(.7rem, env(safe-area-inset-right)); bottom: max(.7rem, env(safe-area-inset-bottom)); width: calc(100vw - 1.4rem); }
  .site-guide-launcher { min-height: 46px; padding: .6rem .85rem; font-size: .82rem !important; }
  .site-guide-content { padding: 1rem; }
}
@media print { .site-guide { display: none; } }