:root {
  color-scheme: dark;
  --night: #02070c;
  --deep-blue: #061825;
  --ivory: #f3efe7;
  --gold: #d8ad61;
  --gold-bright: #ffe2a0;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
  background: var(--night);
}

body {
  min-height: 100svh;
  overflow-x: hidden;
  color: var(--ivory);
  font-family: Georgia, "Times New Roman", serif;
}

#stars {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.atmosphere {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 44%, rgba(23, 79, 108, 0.17), transparent 34%),
    radial-gradient(circle at 34% 52%, rgba(185, 121, 41, 0.075), transparent 25%),
    linear-gradient(180deg, #02070c 0%, #030a11 55%, #010305 100%);
  z-index: -1;
}

.shooting-star {
  position: fixed;
  z-index: 0;
  top: 14%;
  left: 78%;
  width: clamp(5rem, 12vw, 10rem);
  height: 1px;
  pointer-events: none;
  opacity: 0;
  transform: rotate(-31deg) translate3d(0, 0, 0);
  transform-origin: left center;
  background: linear-gradient(90deg, #f8fcff 0%, rgba(205, 232, 245, 0.25) 55%, transparent 100%);
  filter: drop-shadow(0 0 4px rgba(190, 226, 245, 0.95));
  animation: shoot 33s linear 11s infinite;
}

.shooting-star::after {
  content: "";
  position: absolute;
  left: -2px;
  top: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #ffffff;
  transform: translateY(-50%);
  box-shadow:
    0 0 5px #ffffff,
    0 0 13px rgba(160, 215, 244, 0.95),
    0 0 22px rgba(216, 173, 97, 0.48);
}

.threshold {
  min-height: 100svh;
  width: 100%;
  display: grid;
  place-items: center;
  align-content: center;
  gap: clamp(1.25rem, 3vh, 2.5rem);
  padding: clamp(1.5rem, 4vh, 3rem) 1.25rem;
  isolation: isolate;
}

.cover-wrap {
  position: relative;
  width: min(76vw, 440px);
  aspect-ratio: 17 / 22;
  border-radius: 1px;
  transform: translateZ(0);
  animation: arrive 2.4s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.cover,
.edge-light {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.cover {
  display: block;
  object-fit: cover;
  box-shadow:
    0 2rem 7rem rgba(0, 0, 0, 0.75),
    0 0 0 1px rgba(220, 188, 128, 0.13),
    0 0 3.2rem rgba(27, 115, 157, 0.08);
}

.cover-aura {
  position: absolute;
  inset: 8% -12%;
  z-index: -1;
  background: radial-gradient(ellipse, rgba(31, 126, 171, 0.14), transparent 67%);
  filter: blur(24px);
  animation: breathe 7s ease-in-out infinite;
}

.globe-glimmer {
  position: absolute;
  z-index: 1;
  top: 28%;
  left: 16%;
  width: 55%;
  height: 31%;
  pointer-events: none;
}

.glimmer {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: 1px;
  height: 1px;
  opacity: 0.08;
  color: #ffe4a4;
  background: currentColor;
  transform: translate(-50%, -50%) scale(0.35) rotate(0deg);
  mix-blend-mode: screen;
  filter: drop-shadow(0 0 2px currentColor);
  animation: globe-glimmer var(--duration) ease-in-out var(--delay) infinite;
}

.glimmer::before,
.glimmer::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: linear-gradient(90deg, transparent, currentColor 42%, currentColor 58%, transparent);
}

.glimmer::before {
  width: 7px;
  height: 1px;
}

.glimmer::after {
  width: 1px;
  height: 7px;
  background: linear-gradient(180deg, transparent, currentColor 42%, currentColor 58%, transparent);
}

.glimmer-gold {
  color: #ffe4a4;
}

.glimmer-blue {
  color: #c5eeff;
}

.tree-heart {
  position: absolute;
  z-index: 2;
  left: 49.05%;
  top: 53.15%;
  width: 3.2%;
  aspect-ratio: 1;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.45);
  background: radial-gradient(
    circle,
    rgba(255, 252, 218, 0.92) 0%,
    rgba(255, 220, 139, 0.48) 22%,
    rgba(222, 166, 73, 0.16) 48%,
    transparent 72%
  );
  filter: blur(0.2px);
  mix-blend-mode: screen;
  animation: tree-heartbeat 55s linear 22s infinite;
}

.sun-bloom {
  position: absolute;
  z-index: 1;
  left: 13%;
  top: 53.6%;
  width: 9%;
  aspect-ratio: 1;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.72);
  background: radial-gradient(
    circle,
    rgba(255, 252, 221, 0.78) 0%,
    rgba(255, 218, 128, 0.34) 18%,
    rgba(242, 168, 63, 0.14) 42%,
    transparent 72%
  );
  mix-blend-mode: screen;
  animation: sun-bloom 55s ease-in-out 33s infinite;
}

.edge-light {
  pointer-events: none;
  border: 1px solid rgba(248, 217, 158, 0.14);
  box-shadow: inset 0 0 1.4rem rgba(255, 255, 255, 0.025);
}

.arrival {
  text-align: center;
  text-transform: uppercase;
  animation: reveal 2.2s ease-out 0.9s both;
}

.project {
  margin: 0;
  color: rgba(246, 242, 234, 0.94);
  font-size: clamp(1rem, 2.3vw, 1.35rem);
  letter-spacing: clamp(0.23em, 0.8vw, 0.48em);
  text-indent: clamp(0.23em, 0.8vw, 0.48em);
}

.soon {
  margin: 0.7rem 0 0;
  color: var(--gold);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.74rem;
  font-weight: 400;
  letter-spacing: 0.58em;
  text-indent: 0.58em;
}

.sigil {
  display: block;
  position: relative;
  width: 5.5rem;
  height: 1px;
  margin: 1.25rem auto 0;
  background: linear-gradient(90deg, transparent, rgba(216, 173, 97, 0.7), transparent);
}

.sigil::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 5px;
  height: 5px;
  background: var(--gold-bright);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0.8rem rgba(255, 210, 118, 0.9);
  animation: pulse 4s ease-in-out infinite;
}

.sound-invitation {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  min-height: 44px;
  margin-top: 1.3rem;
  padding: 0.7rem 0.35rem;
  border: 0;
  border-bottom: 1px solid rgba(216, 173, 97, 0.34);
  background: transparent;
  color: rgba(243, 239, 231, 0.72);
  font: 400 0.72rem/1 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 400ms ease, border-color 400ms ease, opacity 600ms ease, transform 600ms ease;
}

.sound-invitation:hover,
.sound-invitation:focus-visible {
  color: var(--gold-bright);
  border-color: rgba(255, 226, 160, 0.8);
  outline: none;
}

.sound-mark {
  color: var(--gold);
  font-size: 0.65rem;
  animation: pulse-mark 3s ease-in-out infinite;
}

body.sound-awake .sound-invitation {
  opacity: 0;
  pointer-events: none;
  transform: translateY(6px);
}

.sound-toggle {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: 3;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(216, 173, 97, 0.32);
  border-radius: 50%;
  background: rgba(2, 7, 12, 0.7);
  color: var(--gold-bright);
  font-size: 1rem;
  cursor: pointer;
  backdrop-filter: blur(10px);
  transition: opacity 300ms ease, border-color 300ms ease, color 300ms ease;
}

.sound-toggle[hidden] { display: none; }

.sound-toggle[aria-pressed="false"] {
  color: rgba(243, 239, 231, 0.45);
  border-color: rgba(243, 239, 231, 0.18);
}

.sound-toggle:focus-visible {
  outline: 1px solid var(--gold-bright);
  outline-offset: 4px;
}

@keyframes arrive {
  from { opacity: 0; transform: translateY(20px) scale(0.975); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes reveal {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes globe-glimmer {
  0%, 46%, 70%, 100% {
    opacity: 0.06;
    transform: translate(-50%, -50%) scale(0.3) rotate(0deg);
  }
  55% {
    opacity: 0.38;
  }
  59% {
    opacity: 0.9;
    transform: translate(-50%, -50%) scale(0.86) rotate(18deg);
  }
  63% {
    opacity: 0.26;
    transform: translate(-50%, -50%) scale(0.48) rotate(24deg);
  }
}

@keyframes tree-heartbeat {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.45);
  }
  0.7% {
    opacity: 0.68;
    transform: translate(-50%, -50%) scale(1.15);
  }
  1.25% {
    opacity: 0.36;
    transform: translate(-50%, -50%) scale(0.78);
  }
  1.9% {
    opacity: 0.82;
    transform: translate(-50%, -50%) scale(1.38);
  }
  3.4% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.62);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.45);
  }
}

@keyframes sun-bloom {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.72);
  }
  1.2% {
    opacity: 0.3;
  }
  3.6% {
    opacity: 0.76;
    transform: translate(-50%, -50%) scale(1.48);
  }
  6.5% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.72);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.72);
  }
}

@keyframes breathe {
  0%, 100% { opacity: 0.45; transform: scale(0.96); }
  50% { opacity: 0.82; transform: scale(1.04); }
}

@keyframes pulse {
  0%, 100% { opacity: 0.45; transform: translate(-50%, -50%) scale(0.72); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.08); }
}

@keyframes pulse-mark {
  0%, 100% { opacity: 0.45; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.08); }
}

@keyframes shoot {
  0% {
    opacity: 0;
    transform: rotate(-31deg) translate3d(0, 0, 0) scaleX(0.35);
  }
  0.54% { opacity: 1; }
  3.36% {
    opacity: 0.95;
    transform: rotate(-31deg) translate3d(-62vw, 0, 0) scaleX(1);
  }
  4.56%, 100% {
    opacity: 0;
    transform: rotate(-31deg) translate3d(-76vw, 0, 0) scaleX(0.6);
  }
}

@media (min-width: 760px) {
  .threshold {
    grid-template-columns: auto minmax(240px, 340px);
    gap: clamp(3rem, 7vw, 7rem);
    padding-inline: 5vw;
  }

  .cover-wrap {
    width: min(40vw, 500px, 69vh * 17 / 22);
  }

  .arrival {
    text-align: left;
  }

  .project,
  .soon {
    text-indent: 0;
  }

  .sigil {
    margin-left: 0;
  }
}

@media (max-height: 720px) and (max-width: 759px) {
  .cover-wrap { width: min(58vw, 300px); }
  .threshold { gap: 1rem; padding-block: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .glimmer { opacity: 0.2; transform: translate(-50%, -50%) scale(0.55); }
  .tree-heart { display: none; }
  .sun-bloom { display: none; }
  .shooting-star { display: none; }
  .sound-mark { animation: none; }
}