:root {
  color-scheme: dark;
  font-family: ui-serif, "Songti SC", "STSong", Georgia, serif;
  background: #173d42;
  color: #f0eee3;
  font-synthesis: none;
  --safe-top: max(1.1rem, env(safe-area-inset-top));
  --safe-right: max(1.25rem, env(safe-area-inset-right));
  --safe-bottom: max(1.25rem, env(safe-area-inset-bottom));
  --safe-left: max(1.25rem, env(safe-area-inset-left));
}

* { box-sizing: border-box; }

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  overflow: hidden;
  overscroll-behavior: none;
  background: #173d42;
}

button {
  font: inherit;
  color: inherit;
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible { outline: 2px solid #f5d89c; outline-offset: 4px; }

.app-shell,
.view {
  position: fixed;
  inset: 0;
  width: 100%;
  min-height: 100vh;
  min-height: 100dvh;
}

.view { overflow: hidden; isolation: isolate; }

.map-view {
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: calc(var(--safe-top) + 0.8rem) var(--safe-right) calc(var(--safe-bottom) + 0.3rem) var(--safe-left);
  background:
    radial-gradient(circle at 72% 16%, rgba(174, 206, 185, 0.2), transparent 28%),
    linear-gradient(160deg, #274f51 0%, #173e45 48%, #102f38 100%);
  opacity: 1;
  transform: scale(1);
  visibility: visible;
  transition: opacity 1.1s ease, transform 1.55s cubic-bezier(0.2, 0.7, 0.1, 1), visibility 0s linear;
}

.map-view::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.28;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
  pointer-events: none;
}

.brand-lockup {
  z-index: 3;
}

.brand-lockup .eyebrow,
.brand-lockup h1,
.brand-lockup > p:last-child {
  text-shadow: 0 1px 1px rgba(3, 11, 14, 0.78);
}

.eyebrow {
  margin: 0 0 0.35rem;
  color: #d7c89f;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  font-size: 0.69rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.brand-lockup h1 {
  margin: 0;
  font-size: clamp(1.7rem, 7vw, 2.3rem);
  font-weight: 500;
  letter-spacing: 0.12em;
}

.brand-lockup > p:last-child {
  margin: 0.55rem 0 0;
  color: rgba(241, 239, 225, 0.68);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.map-stage { position: absolute; inset: 0; z-index: 1; }
.world-map { width: 100%; height: 100%; pointer-events: none; }
.continent, .island-chain { opacity: 0.92; }

.ridge {
  fill: none;
  stroke: rgba(210, 220, 188, 0.2);
  stroke-linecap: round;
  stroke-width: 7;
}

.mist {
  fill: none;
  stroke: rgba(234, 231, 212, 0.17);
  stroke-linecap: round;
  stroke-width: 28;
  filter: blur(7px);
  animation: mist-drift 20s ease-in-out infinite alternate;
}

.mist-b { stroke-width: 20; animation-duration: 26s; animation-direction: alternate-reverse; }

.place-marker {
  position: absolute;
  top: 46%;
  left: 80%;
  width: 5.75rem;
  min-height: 3.5rem;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  touch-action: manipulation;
  transform: translate(-50%, -50%);
}

.marker-dot,
.marker-pulse {
  position: absolute;
  top: 50%;
  left: 1rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.marker-dot { background: #f2c77d; box-shadow: 0 0 14px rgba(246, 201, 124, 0.8); }
.marker-pulse { border: 1px solid rgba(246, 207, 143, 0.72); animation: quiet-pulse 3.6s ease-out infinite; }

.marker-label {
  position: absolute;
  top: 50%;
  left: 1.8rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid rgba(237, 227, 197, 0.18);
  border-radius: 999px;
  background: rgba(16, 45, 48, 0.58);
  box-shadow: 0 8px 22px rgba(3, 20, 25, 0.2);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  white-space: nowrap;
  transform: translateY(-50%);
  backdrop-filter: blur(9px);
}

.map-footer {
  z-index: 3;
  align-self: end;
  color: rgba(241, 239, 225, 0.62);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.map-footer p { margin: 0.7rem 0 0; }

.survey-entry {
  position: absolute;
  right: var(--safe-right);
  bottom: calc(var(--safe-bottom) + 1.75rem);
  z-index: 5;
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  margin: 0;
  padding: 0 0.72rem;
  border: 1px solid rgba(230, 231, 212, 0.18);
  border-radius: 999px;
  color: rgba(245, 242, 224, 0.76);
  background: rgba(10, 38, 43, 0.38);
  box-shadow: 0 2px 8px rgba(3, 15, 18, 0.18);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  pointer-events: auto;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease;
}

.survey-entry:hover,
.survey-entry:focus-visible {
  color: #f5e8c7;
  border-color: rgba(241, 216, 161, 0.36);
  background: rgba(11, 43, 47, 0.58);
}

.survey-entry svg {
  width: 0.88rem;
  height: 0.88rem;
  margin-right: 0.34rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.15;
}

.survey-invitation {
  position: absolute;
  z-index: 6;
  right: var(--safe-right);
  bottom: calc(var(--safe-bottom) + 4.25rem);
  width: min(25rem, calc(100vw - var(--safe-left) - var(--safe-right)));
  padding: 1rem 1.05rem 0.95rem;
  border: 1px solid rgba(232, 226, 201, 0.2);
  border-radius: 1rem;
  color: rgba(246, 242, 222, 0.9);
  background:
    linear-gradient(145deg, rgba(25, 65, 67, 0.88), rgba(9, 35, 41, 0.9));
  box-shadow: 0 10px 30px rgba(2, 14, 18, 0.28), inset 0 1px rgba(255, 255, 255, 0.04);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  opacity: 0;
  transform: translateY(0.65rem);
  pointer-events: none;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: opacity 360ms ease, transform 420ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

.survey-invitation[hidden] { display: none; }

.survey-invitation.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.survey-invitation-copy p {
  margin: 0;
  font-family: ui-serif, "Songti SC", "STSong", Georgia, serif;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.survey-invitation-copy span {
  display: block;
  margin-top: 0.38rem;
  color: rgba(239, 236, 218, 0.62);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
}

.survey-invitation-actions {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 0.85rem;
}

.survey-primary-action,
.survey-secondary-action {
  min-height: 2.25rem;
  padding: 0.52rem 0.9rem;
  border-radius: 999px;
  font: inherit;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  cursor: pointer;
}

.survey-primary-action {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(239, 216, 164, 0.34);
  color: #f5e7c4;
  background: rgba(195, 157, 91, 0.16);
}

.survey-secondary-action {
  border: 0;
  color: rgba(239, 236, 218, 0.6);
  background: transparent;
}

.survey-primary-action:hover,
.survey-primary-action:focus-visible { background: rgba(195, 157, 91, 0.25); }

.survey-secondary-action:hover,
.survey-secondary-action:focus-visible { color: rgba(247, 243, 225, 0.88); }

.place-discovery {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  margin-left: 0.35rem;
  padding: 0 0.7rem;
  border: 1px solid rgba(230, 231, 212, 0.12);
  border-radius: 999px;
  color: rgba(241, 239, 225, 0.56);
  background: rgba(13, 43, 48, 0.2);
}

#map-discovery-hint[hidden] { display: none; }

.silence-badge {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0 0.7rem;
  border: 1px solid rgba(230, 231, 212, 0.16);
  border-radius: 999px;
  background: rgba(13, 43, 48, 0.32);
}

.place-view {
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: calc(var(--safe-top) + 0.75rem) var(--safe-right) calc(var(--safe-bottom) + 0.5rem) var(--safe-left);
  background:
    linear-gradient(180deg, rgba(12, 36, 28, 0.08), rgba(5, 26, 23, 0.72)),
    radial-gradient(circle at 68% 9%, #9db58a 0%, #547b61 30%, #204d41 67%, #102f2d 100%);
  opacity: 0;
  visibility: hidden;
  transition: opacity 1s ease, visibility 0s linear 1s;
  pointer-events: none;
}

.place-view::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(8, 31, 27, 0.55), transparent 48%, rgba(217, 223, 177, 0.08));
  pointer-events: none;
}

.entering .map-view {
  opacity: 0;
  transform: scale(1.18);
  visibility: hidden;
  transition: opacity 1.15s ease, transform 1.6s cubic-bezier(0.2, 0.7, 0.1, 1), visibility 0s linear 1.15s;
}

.entering .place-view {
  opacity: 1;
  visibility: visible;
  transition: opacity 1s ease 0.72s, visibility 0s linear 0.72s;
  pointer-events: auto;
}

.place-active .map-view { opacity: 0; transform: scale(1.18); visibility: hidden; }
.place-active .place-view { opacity: 1; visibility: visible; transition-delay: 0s; pointer-events: auto; }
.leaving .map-view { opacity: 1; transform: scale(1); visibility: visible; }
.leaving .place-view { opacity: 0; visibility: hidden; transition: opacity 1s ease, visibility 0s linear 1s; }

.round-button {
  position: relative;
  z-index: 3;
  display: grid;
  width: 3rem;
  height: 3rem;
  padding: 0;
  place-items: center;
  border: 1px solid rgba(239, 237, 221, 0.24);
  border-radius: 50%;
  background: rgba(8, 37, 31, 0.34);
  box-shadow: 0 8px 28px rgba(4, 23, 20, 0.18);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 1.25rem;
  backdrop-filter: blur(12px);
  cursor: pointer;
}

.place-copy { z-index: 2; align-self: end; margin-bottom: clamp(2.1rem, 8vh, 4.8rem); }

.place-copy h2 {
  margin: 0;
  font-size: clamp(3.2rem, 15vw, 5rem);
  font-weight: 400;
  letter-spacing: 0.16em;
  text-shadow: 0 8px 32px rgba(3, 24, 19, 0.22);
}

.place-poem {
  margin: 0.85rem 0 0;
  color: rgba(245, 241, 222, 0.84);
  font-size: clamp(0.94rem, 4vw, 1.1rem);
  letter-spacing: 0.12em;
}

.bamboo-grove { position: absolute; inset: -4% -9% 20% 12%; z-index: -1; opacity: 0.62; transform: rotate(2deg); }

.bamboo-grove i {
  position: absolute;
  bottom: -14%;
  width: clamp(1rem, 5vw, 1.7rem);
  height: 118%;
  border: 1px solid rgba(207, 219, 163, 0.16);
  border-radius: 45% 40% 8% 8%;
  background: linear-gradient(90deg, #183d31, #547761 46%, #254e3f 70%, #112f28);
  box-shadow: inset 0 0 0 4px rgba(170, 191, 142, 0.04), 0 0 28px rgba(5, 24, 20, 0.22);
  transform-origin: bottom center;
}

.bamboo-grove i::after {
  content: "";
  position: absolute;
  top: 34%;
  left: -11%;
  width: 122%;
  height: 0.42rem;
  border-radius: 50%;
  background: rgba(11, 43, 34, 0.6);
  box-shadow: 0 11rem 0 rgba(9, 39, 31, 0.48), 0 22rem 0 rgba(9, 39, 31, 0.45);
}

.bamboo-grove i:nth-child(1) { left: 3%; transform: rotate(-4deg) scaleY(0.9); }
.bamboo-grove i:nth-child(2) { left: 19%; transform: rotate(3deg) scaleY(1.05); }
.bamboo-grove i:nth-child(3) { left: 35%; transform: rotate(-1deg) scaleY(0.96); }
.bamboo-grove i:nth-child(4) { left: 51%; transform: rotate(5deg) scaleY(1.1); }
.bamboo-grove i:nth-child(5) { left: 66%; transform: rotate(-3deg) scaleY(0.92); }
.bamboo-grove i:nth-child(6) { left: 81%; transform: rotate(2deg) scaleY(1.04); }
.bamboo-grove i:nth-child(7) { left: 95%; transform: rotate(-5deg) scaleY(0.97); }

.bamboo-light {
  position: absolute;
  z-index: 0;
  width: 34rem;
  height: 10rem;
  border-radius: 50%;
  background: rgba(223, 226, 173, 0.1);
  filter: blur(30px);
  transform: rotate(-54deg);
  animation: bamboo-breathe 13s ease-in-out infinite alternate;
  pointer-events: none;
}

.bamboo-light-a { top: 10%; right: -83%; }
.bamboo-light-b { top: 42%; right: -66%; animation-delay: -7s; }

.player-panel {
  z-index: 4;
  padding: 0.9rem;
  border: 1px solid rgba(236, 235, 214, 0.16);
  border-radius: 1.5rem;
  background: rgba(8, 32, 28, 0.45);
  box-shadow: 0 16px 46px rgba(1, 18, 15, 0.28);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  backdrop-filter: blur(18px);
}

.playback-status {
  min-height: 1rem;
  margin: 0 0 0.75rem;
  color: rgba(238, 238, 220, 0.72);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-align: center;
}

.player-actions { display: grid; gap: 0.65rem; }

.master-volume-control {
  --master-volume-accent: rgba(221, 213, 179, 0.86);
  --master-volume-rail: rgba(229, 232, 212, 0.17);
  display: grid;
  grid-template-columns: 1.2rem minmax(0, 1fr) 2.65rem;
  align-items: center;
  gap: 0.62rem;
  width: 100%;
  height: 3rem;
  min-height: 3rem;
  margin-top: 0.7rem;
  padding: 0 0.84rem;
  border: 0;
  border-radius: 2px;
  background: rgba(160, 180, 150, 0.025);
  color: rgba(231, 232, 214, 0.66);
  box-sizing: border-box;
  transition: border-color 0.45s ease, background 0.45s ease;
}

.master-volume-control output {
  min-width: 2.65rem;
  color: currentColor;
  font-size: 0.68rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  opacity: 0.92;
  text-align: right;
}

.master-volume-icon {
  width: 1.08rem;
  height: 1.08rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.25;
}

.master-volume-control input[type="range"] {
  width: 100%;
  height: 1.7rem;
  margin: 0;
  padding: 0;
  border: 0;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  cursor: pointer;
  touch-action: pan-x;
}

.master-volume-control input[type="range"]::-webkit-slider-runnable-track {
  height: 0.2rem;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    var(--master-volume-accent) 0 var(--master-volume-percent, 100%),
    var(--master-volume-rail) var(--master-volume-percent, 100%) 100%
  );
}

.master-volume-control input[type="range"]::-webkit-slider-thumb {
  width: 0.82rem;
  height: 0.82rem;
  margin-top: -0.31rem;
  border: 1px solid rgba(248, 243, 218, 0.62);
  border-radius: 50%;
  appearance: none;
  -webkit-appearance: none;
  background: var(--master-volume-accent);
  box-shadow: 0 2px 8px rgba(2, 17, 16, 0.34);
}

.master-volume-control input[type="range"]::-moz-range-track {
  height: 0.2rem;
  border: 0;
  border-radius: 999px;
  background: var(--master-volume-rail);
}

.master-volume-control input[type="range"]::-moz-range-progress {
  height: 0.2rem;
  border-radius: 999px;
  background: var(--master-volume-accent);
}

.master-volume-control input[type="range"]::-moz-range-thumb {
  width: 0.82rem;
  height: 0.82rem;
  border: 1px solid rgba(248, 243, 218, 0.62);
  border-radius: 50%;
  background: var(--master-volume-accent);
  box-shadow: 0 2px 8px rgba(2, 17, 16, 0.34);
}

.master-volume-control input[type="range"]:focus-visible {
  outline: 1px solid rgba(238, 226, 190, 0.74);
  outline-offset: 3px;
  border-radius: 999px;
}

.sound-switches {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr));
  gap: 0.65rem;
}

.play-button,
.music-button,
.timer-button {
  min-height: 3.2rem;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  touch-action: manipulation;
}

.sound-switch {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  border: 1px solid rgba(239, 239, 219, 0.14);
  background: rgba(235, 236, 215, 0.08);
  color: rgba(245, 243, 226, 0.68);
  font-weight: 650;
  transition: background 240ms ease, border-color 240ms ease, color 240ms ease;
}

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

.sound-switch[aria-checked="true"] {
  border-color: transparent;
  background: #e5d6a8;
  color: #163a31;
}

.sound-switch-indicator {
  position: relative;
  width: 1.35rem;
  height: 0.78rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  opacity: 0.78;
}

.sound-switch-indicator::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0.17rem;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: currentColor;
  transform: translateY(-50%);
  transition: left 220ms ease;
}

.sound-switch[aria-checked="true"] .sound-switch-indicator::after { left: 0.7rem; }

.sound-switch.is-loading .sound-switch-indicator { animation: sound-switch-loading 1s ease-in-out infinite alternate; }

.timer-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 1px solid rgba(239, 239, 219, 0.14);
  background: rgba(235, 236, 215, 0.08);
  color: rgba(245, 243, 226, 0.84);
  font-size: 0.8rem;
}

.pause-icon { display: inline-flex; gap: 0.2rem; }
.pause-icon i { width: 0.18rem; height: 0.8rem; border-radius: 1rem; background: currentColor; }
.play-icon { display: none; font-size: 0.8rem; }
.play-button.is-paused .pause-icon { display: none; }
.play-button.is-paused .play-icon { display: inline; }

.timer-note { margin: 0.75rem 0 0; color: rgba(241, 238, 219, 0.62); font-size: 0.7rem; text-align: center; }

@keyframes quiet-pulse {
  0% { opacity: 0.7; transform: translate(-50%, -50%) scale(1); }
  70%, 100% { opacity: 0; transform: translate(-50%, -50%) scale(3.1); }
}

@keyframes mist-drift {
  from { transform: translateX(-2.5%); opacity: 0.55; }
  to { transform: translateX(3%); opacity: 0.85; }
}

@keyframes bamboo-breathe {
  from { opacity: 0.5; transform: rotate(-54deg) translateX(-1%); }
  to { opacity: 0.9; transform: rotate(-54deg) translateX(2%); }
}

@keyframes sound-switch-loading {
  from { opacity: 0.38; }
  to { opacity: 1; }
}

@media (min-width: 700px) {
  .app-shell { left: 50%; width: min(100%, 30rem); transform: translateX(-50%); box-shadow: 0 0 80px rgba(2, 17, 19, 0.55); }
  body { background: #0d292f; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
  .map-view, .place-view { transition-duration: 0.25s !important; transition-delay: 0s !important; }
}