:root {
  color-scheme: dark;
  --moon-size: clamp(92px, 18vw, 190px);
  --moon-shadow-x: -18%;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; overflow: hidden; }
body {
  font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
  background:
    radial-gradient(circle at 50% 120%, rgba(45, 86, 145, .24), transparent 38%),
    radial-gradient(circle at 24% 18%, rgba(24, 61, 119, .22), transparent 32%),
    linear-gradient(180deg, #02040c 0%, #060817 48%, #0a0d1d 100%);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

#sky {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100dvh;
  display: block;
}

.moon-toggle {
  position: fixed;
  right: calc(16px + var(--safe-right));
  bottom: calc(18px + var(--safe-bottom));
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 48px;
  padding: 0 16px 0 12px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 999px;
  color: rgba(245,247,255,.96);
  background: rgba(10,14,29,.72);
  box-shadow: 0 16px 46px rgba(0,0,0,.38), inset 0 1px 0 rgba(255,255,255,.10);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  cursor: pointer;
  user-select: none;
}

.moon-toggle:active { transform: translateY(1px) scale(.985); }
.moon-toggle-text { font-size: 14px; font-weight: 700; letter-spacing: .02em; }

.mini-moon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 33% 36%, rgba(255,255,255,.98) 0 4%, transparent 4.5%),
    radial-gradient(circle at 61% 46%, rgba(93,94,99,.32) 0 18%, transparent 19%),
    radial-gradient(circle at 42% 67%, rgba(93,94,99,.24) 0 14%, transparent 15%),
    radial-gradient(circle at 44% 44%, #f4f1e7 0 36%, #c6c0b4 67%, #8e8b84 100%);
  box-shadow: 0 0 18px rgba(222,231,255,.48), inset -4px -5px 6px rgba(36,34,42,.32);
}

.moon-panel {
  position: fixed;
  inset: 0;
  z-index: 15;
  pointer-events: none;
  opacity: 0;
  transform: translateY(16px) scale(.985);
  transition: opacity .22s ease, transform .22s ease;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: calc(18px + var(--safe-top)) calc(18px + var(--safe-right)) calc(82px + var(--safe-bottom)) calc(18px + var(--safe-left));
}

.moon-panel.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.moon-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 22px;
  width: min(100%, 650px);
  padding: 18px 22px;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(10,14,29,.78), rgba(10,14,29,.48));
  box-shadow: 0 24px 80px rgba(0,0,0,.44), inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.moon-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 50%;
  color: rgba(255,255,255,.88);
  background: rgba(255,255,255,.08);
  font-size: 28px;
  line-height: 30px;
  cursor: pointer;
}

.moon-close:active { transform: scale(.96); }

.moon {
  width: var(--moon-size);
  height: var(--moon-size);
  flex: 0 0 auto;
  border-radius: 50%;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 37% 32%, rgba(255,255,255,.98) 0 1.4%, transparent 1.7%),
    radial-gradient(circle at 58% 42%, rgba(120,124,130,.38) 0 8%, transparent 8.6%),
    radial-gradient(circle at 71% 31%, rgba(100,104,110,.32) 0 6%, transparent 6.8%),
    radial-gradient(circle at 35% 61%, rgba(110,114,119,.34) 0 7%, transparent 7.8%),
    radial-gradient(circle at 50% 73%, rgba(90,94,99,.28) 0 5%, transparent 5.7%),
    radial-gradient(circle at 24% 42%, rgba(150,153,158,.24) 0 4%, transparent 4.8%),
    radial-gradient(circle at 78% 68%, rgba(130,133,138,.26) 0 6%, transparent 6.8%),
    radial-gradient(circle at 46% 45%, #f4f1e7 0 28%, #d1ccc1 60%, #8d8b85 100%);
  filter: saturate(.86) contrast(1.08);
  box-shadow:
    0 0 38px rgba(222, 231, 255, .62),
    0 0 100px rgba(103, 144, 255, .25),
    inset -18px -22px 28px rgba(36, 34, 42, .34),
    inset 11px 13px 22px rgba(255, 255, 255, .2);
}

.moon::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle closest-side at center, rgba(4,6,13,.98) 0 99%, transparent 100%);
  transform: translateX(var(--moon-shadow-x));
}

.moon::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 42% 34%, transparent 0 4%, rgba(65,64,63,.20) 4.3% 5.3%, transparent 5.6%),
    radial-gradient(circle at 58% 58%, transparent 0 7%, rgba(70,68,65,.18) 7.4% 8.6%, transparent 9%),
    radial-gradient(circle at 30% 72%, transparent 0 4.5%, rgba(82,78,74,.18) 4.9% 6%, transparent 6.4%),
    linear-gradient(120deg, rgba(255,255,255,.14), transparent 34%, rgba(0,0,0,.18) 100%);
  opacity: .72;
}

.moon-info {
  min-width: 0;
  padding-right: 28px;
  color: rgba(245,247,255,.94);
  text-shadow: 0 2px 18px rgba(0,0,0,.42);
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(179,204,255,.78);
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.05;
}

#phaseDetails {
  margin: 0;
  max-width: 370px;
  color: rgba(230,236,255,.72);
  line-height: 1.45;
  font-size: 14px;
}

@media (min-width: 900px) {
  .moon-panel {
    align-items: flex-start;
    justify-content: flex-end;
    padding: calc(28px + var(--safe-top)) calc(28px + var(--safe-right)) calc(28px + var(--safe-bottom)) calc(28px + var(--safe-left));
  }
  .moon-toggle { right: calc(28px + var(--safe-right)); bottom: calc(28px + var(--safe-bottom)); }
  .moon-card { width: auto; max-width: 620px; }
}
@media (max-width: 768px) {
  :root { --moon-size: clamp(76px, 23vw, 116px); }
  #sky { height: 100svh; }
  .moon-toggle {
    right: calc(14px + var(--safe-right));
    bottom: calc(14px + var(--safe-bottom));
    height: 46px;
    padding: 0 14px 0 11px;
    background: rgba(10,14,29,.86);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .moon-panel {
    padding: calc(14px + var(--safe-top)) calc(14px + var(--safe-right)) calc(76px + var(--safe-bottom)) calc(14px + var(--safe-left));
  }
  .moon-card {
    width: min(100%, 540px);
    gap: 12px;
    padding: 12px 44px 12px 12px;
    border-radius: 22px;
    background: rgba(10,14,29,.90);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: 0 14px 44px rgba(0,0,0,.38), inset 0 1px 0 rgba(255,255,255,.07);
  }
  .moon-close { top: 9px; right: 9px; width: 32px; height: 32px; font-size: 26px; }
  .eyebrow { font-size: 10px; letter-spacing: .12em; }
  h1 { font-size: clamp(19px, 5.4vw, 24px); margin-bottom: 5px; }
  #phaseDetails { font-size: 12px; line-height: 1.35; }
  .moon { box-shadow: 0 0 24px rgba(222,231,255,.46), 0 0 48px rgba(103,144,255,.16), inset -12px -14px 18px rgba(36,34,42,.32); }
}

@media (max-width: 420px) {
  .moon-toggle-text { display: none; }
  .moon-toggle { width: 48px; justify-content: center; padding: 0; }
  .moon-card { align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  .moon-panel { transition: none; }
  .moon-card, .moon-toggle { backdrop-filter: none; -webkit-backdrop-filter: none; }
}