.compass-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  align-items: end;
  background: rgba(5,8,8,.42);
  backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity .18s ease;
}

.compass-backdrop.open { opacity: 1; }
.compass-backdrop.hidden { display: none; }

.compass-shell {
  width: min(100%, 560px);
  margin: 0 auto;
  background: linear-gradient(180deg,var(--surface-2),var(--bg));
  border: 1px solid var(--line);
  border-bottom: 0;
  border-radius: 28px 28px 0 0;
  padding: 18px 18px max(22px,env(safe-area-inset-bottom));
  box-shadow: 0 -20px 60px rgba(0,0,0,.38);
  transform: translateY(24px);
  transition: transform .18s ease;
}

.compass-backdrop.open .compass-shell { transform: translateY(0); }

.compass-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 14px;
}

.compass-header h2 {
  margin: 4px 0 0;
  font-size: 24px;
  letter-spacing: -.7px;
}

.compass-close {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font-size: 23px;
}

.compass-stage {
  display: grid;
  place-items: center;
  gap: 12px;
  padding: 20px 0 14px;
}

.compass-mode {
  font-size: 10px;
  font-weight: 950;
  letter-spacing: .16em;
  color: var(--accent);
}

.compass-ring {
  position: relative;
  width: min(68vw, 270px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at center, var(--accent-soft) 0 1px, transparent 1px 48%),
    conic-gradient(from 0deg, rgba(255,255,255,.12) 0 1deg, transparent 1deg 29deg, rgba(255,255,255,.06) 29deg 30deg);
  box-shadow: inset 0 0 0 12px rgba(255,255,255,.015), 0 14px 40px rgba(0,0,0,.22);
}

.compass-ring::before,
.compass-ring::after {
  position: absolute;
  color: var(--muted);
  font-size: 10px;
  font-weight: 900;
}

.compass-ring::before { content: "N"; top: 10px; }
.compass-ring::after { content: "S"; bottom: 10px; }

.compass-arrow {
  position: relative;
  width: 90px;
  height: 150px;
  transform-origin: 50% 56%;
  transition: transform .16s linear;
}

.compass-arrow::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  border-left: 28px solid transparent;
  border-right: 28px solid transparent;
  border-bottom: 0;
  border-top: 78px solid var(--accent);
  filter: drop-shadow(0 8px 12px rgba(0,0,0,.28));
}

.compass-arrow::after {
  content: "";
  position: absolute;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--ink);
  border: 7px solid var(--surface-2);
  left: 50%;
  top: 76px;
  transform: translateX(-50%);
}

.compass-distance {
  font-size: 36px;
  font-weight: 950;
  letter-spacing: -1.4px;
}

.compass-status {
  min-height: 38px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
  max-width: 360px;
}

.compass-accuracy {
  color: var(--muted);
  font-size: 10px;
}

.compass-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.compass-action {
  min-height: 46px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  display: inline-grid;
  place-items: center;
  text-decoration: none;
  font-weight: 900;
  font-size: 12px;
}

.compass-action.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.compass-backdrop[data-mode="route"] .compass-ring {
  opacity: .55;
  transform: scale(.92);
}

.compass-backdrop[data-mode="arrived"] .compass-ring {
  border-color: var(--accent);
  box-shadow: 0 0 0 8px var(--accent-soft), 0 14px 40px rgba(0,0,0,.22);
}

@media (min-width: 760px) {
  .compass-backdrop { align-items: center; }
  .compass-shell { border-bottom: 1px solid var(--line); border-radius: 28px; }
}