:root {
  color-scheme: dark;
  --ink: #f2f6ef;
  --muted: rgba(232, 240, 233, .68);
  --faint: rgba(232, 240, 233, .42);
  --line: rgba(226, 239, 229, .18);
  --moss: #b9e59b;
  --ember: #ff9a78;
  --bg: #050a12;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { min-height: 100%; margin: 0; background: var(--bg); color: var(--ink); }
body { overflow: hidden; }
button, a { font: inherit; }
button { color: inherit; }
button:focus-visible, a:focus-visible, summary:focus-visible, section:focus-visible {
  outline: 3px solid #eaffb8;
  outline-offset: 4px;
}
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

#field { position: fixed; inset: 0; width: 100%; height: 100%; }
body.playing #field, body.playing main { touch-action: none; cursor: crosshair; }
body.playing button, body.playing a, body.playing dialog, body.playing summary { touch-action: manipulation; cursor: pointer; }
.grain { position: fixed; inset: 0; pointer-events: none; opacity: .065; mix-blend-mode: screen; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E"); }

.topbar { position: fixed; z-index: 20; top: 0; left: 0; right: 0; display: flex; align-items: center; justify-content: space-between; padding: max(18px, env(safe-area-inset-top)) clamp(18px, 4vw, 56px) 16px; pointer-events: none; }
.topbar > * { pointer-events: auto; }
.mark { min-height: 44px; display: inline-flex; align-items: center; color: var(--ink); text-decoration: none; letter-spacing: .22em; font-size: 12px; font-weight: 750; }
.mark i { display: inline-block; width: 9px; height: 9px; border: 1px solid var(--moss); border-radius: 50%; margin-right: 9px; box-shadow: 0 0 18px var(--moss); }
.mark small { margin-left: 7px; color: var(--faint); font-size: 9px; letter-spacing: .08em; }
.top-actions { display: flex; gap: 8px; }
.icon-button { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: rgba(3, 8, 12, .46); color: var(--muted); font-weight: 700; cursor: pointer; backdrop-filter: blur(12px); }
.icon-button:hover { color: var(--ink); border-color: rgba(232, 240, 233, .42); }

main { position: relative; z-index: 2; height: 100svh; }
.threshold, .experience, .crystal { position: absolute; inset: 0; }
.threshold, .crystal { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; overflow-y: auto; padding: clamp(92px, 12vh, 132px) clamp(22px, 8vw, 120px) max(36px, env(safe-area-inset-bottom)); }
.threshold > *, .crystal > * { max-width: 900px; }
.eyebrow { color: var(--moss); text-transform: uppercase; letter-spacing: .2em; font-size: 12px; font-weight: 750; margin: 0 0 18px; }
h1, .crystal h2, dialog h2 { font-family: Georgia, "Times New Roman", serif; font-weight: 400; line-height: .9; letter-spacing: -.055em; margin: 0; }
h1 { font-size: clamp(56px, 9.2vw, 124px); }
.intro { max-width: 650px; color: var(--muted); line-height: 1.65; font-size: clamp(16px, 2vw, 19px); margin: 30px 0 24px; text-wrap: balance; }
.enter-button { min-height: 56px; min-width: min(100%, 330px); border: 1px solid rgba(217,239,210,.4); background: rgba(185,229,155,.1); border-radius: 999px; padding: 7px 7px 7px 23px; display: flex; justify-content: space-between; align-items: center; gap: 24px; cursor: pointer; }
.enter-button b { width: 42px; height: 42px; display: grid; place-items: center; flex: none; border-radius: 50%; background: var(--moss); color: #102015; font-size: 18px; }
.enter-button:hover { background: rgba(185,229,155,.18); transform: translateY(-1px); }
.consent-line { color: var(--faint); font-size: 12px; max-width: 500px; line-height: 1.5; }
.inherit-invitation { display: grid; gap: 4px; margin-bottom: 28px; padding: 12px 16px; border-left: 2px solid var(--ember); background: linear-gradient(90deg, rgba(255,141,114,.09), transparent); }
.inherit-invitation span { color: var(--muted); font-family: Georgia, serif; font-style: italic; }
.inherit-invitation strong { color: var(--ember); text-transform: uppercase; font-size: 11px; letter-spacing: .16em; }

.experience { pointer-events: none; }
.game-hud { position: absolute; z-index: 5; top: max(78px, calc(env(safe-area-inset-top) + 62px)); left: 50%; translate: -50% 0; width: min(780px, calc(100vw - 40px)); display: flex; justify-content: space-between; align-items: flex-start; }
.chapter-readout { display: grid; gap: 5px; text-align: left; }
.chapter-readout span, .elapsed-label { color: var(--faint); text-transform: uppercase; font-size: 11px; letter-spacing: .16em; }
.chapter-readout strong { font-family: Georgia, serif; font-weight: 400; font-size: clamp(21px, 3vw, 30px); }
.elapsed-label { font-variant-numeric: tabular-nums; padding-top: 4px; }
.quest-dock { position: absolute; z-index: 5; bottom: max(72px, calc(env(safe-area-inset-bottom) + 58px)); left: 50%; translate: -50% 0; width: min(560px, calc(100vw - 32px)); padding: 15px 19px; border: 1px solid rgba(226,239,229,.14); border-radius: 18px; background: rgba(3, 7, 12, .52); backdrop-filter: blur(15px); text-align: center; transition: opacity .45s, transform .45s; }
.quest-copy { display: grid; gap: 5px; }
.quest-copy span { color: var(--moss); font-size: 10px; font-weight: 750; text-transform: uppercase; letter-spacing: .16em; }
.quest-copy strong { font-family: Georgia, serif; font-size: clamp(16px, 2.5vw, 20px); font-weight: 400; color: rgba(246,249,244,.88); }
.field-status { position: absolute; z-index: 4; top: 23%; left: 50%; translate: -50% 0; width: min(680px, calc(100vw - 40px)); margin: 0; color: rgba(242,246,239,.72); font-family: Georgia, serif; font-size: clamp(18px, 3vw, 30px); line-height: 1.25; font-style: italic; text-align: center; text-wrap: balance; }
.discovery { position: absolute; z-index: 14; inset: 0; display: grid; place-content: center; gap: 7px; opacity: 0; transform: scale(.88); transition: opacity .38s, transform .7s cubic-bezier(.2,.8,.2,1); pointer-events: none; text-align: center; }
.discovery.reveal { opacity: 1; transform: scale(1); }
.discovery span { color: var(--muted); text-transform: uppercase; letter-spacing: .2em; font-size: 11px; }
.discovery strong { font-family: Georgia, serif; font-size: clamp(66px, 15vw, 176px); font-weight: 400; letter-spacing: -.06em; text-shadow: 0 0 65px rgba(185,229,155,.32); }
body[data-phase="rupture"] .quest-dock { border-color: rgba(255,141,114,.4); }
body[data-phase="rupture"] .quest-copy span { color: var(--ember); }

.choice-panel { pointer-events: auto; position: absolute; z-index: 16; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 110px 20px 150px; text-align: center; background: radial-gradient(circle at center, rgba(6, 10, 18, .28), rgba(2, 4, 8, .72)); backdrop-filter: blur(3px); }
.choice-panel > span { color: var(--muted); font-size: 13px; }
.choice-panel > strong { margin: 9px 0 28px; font-family: Georgia, serif; font-size: clamp(32px, 7vw, 58px); font-weight: 400; }
.choice-buttons { display: flex; gap: clamp(14px, 4vw, 42px); align-items: flex-start; justify-content: center; flex-wrap: wrap; }
.quality-button { width: clamp(88px, 18vw, 130px); min-height: 128px; display: grid; justify-items: center; align-content: center; gap: 13px; border: 0; background: transparent; cursor: pointer; color: var(--ink); text-transform: capitalize; }
.quality-button i { width: clamp(66px, 14vw, 92px); aspect-ratio: 1; border-radius: 50%; border: 1px solid hsla(calc(28 + var(--quality-index) * 112) 85% 80% / .65); background: radial-gradient(circle at 42% 38%, hsla(calc(28 + var(--quality-index) * 112) 90% 90% / .85), hsla(calc(28 + var(--quality-index) * 112) 85% 55% / .23) 28%, transparent 68%); box-shadow: 0 0 42px hsla(calc(28 + var(--quality-index) * 112) 80% 62% / .24); transition: transform .25s, box-shadow .25s; }
.quality-button:hover i, .quality-button:focus-visible i { transform: scale(1.09); box-shadow: 0 0 70px hsla(calc(28 + var(--quality-index) * 112) 80% 62% / .45); }
.quality-button span { font-family: Georgia, serif; font-size: 16px; }

.crystal { max-width: 980px; }
.crystal h2 { font-size: clamp(48px, 8vw, 96px); }
.trace-poem { max-width: 680px; margin: 24px 0 0; color: var(--muted); font-family: Georgia, serif; font-size: clamp(18px, 2.6vw, 24px); line-height: 1.45; }
.trace-glyph { --artifact-hue: 190; position: relative; width: clamp(140px, 23vw, 210px); aspect-ratio: 1; margin: 24px 0 14px; display: grid; place-items: center; }
.trace-glyph i { --i: 0; --length: 50%; position: absolute; left: calc(50% - 1px); bottom: 50%; width: 2px; height: var(--length); transform-origin: 50% 100%; transform: rotate(calc(var(--i) * 10deg)); border-radius: 99px; background: linear-gradient(to top, hsla(var(--artifact-hue) 82% 65% / .08), hsla(calc(var(--artifact-hue) + 38) 92% 80% / .75)); }
.trace-glyph b { position: relative; z-index: 2; width: 72px; aspect-ratio: 1; display: grid; place-items: center; border-radius: 50%; background: radial-gradient(circle at 42% 35%, #fff, hsl(var(--artifact-hue) 82% 67%) 18%, hsl(var(--artifact-hue) 65% 20%) 68%); box-shadow: 0 0 55px hsl(var(--artifact-hue) 80% 58% / .55); color: rgba(5,10,18,.72); font-family: Georgia, serif; font-size: 24px; }
.lineage { color: var(--faint); font-size: 12px; letter-spacing: .06em; }
.lineage strong { color: var(--moss); letter-spacing: .14em; }
.crystal-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.secondary-action { min-height: 48px; border: 1px solid var(--line); background: rgba(5, 13, 12, .44); border-radius: 999px; padding: 12px 18px; cursor: pointer; color: var(--muted); backdrop-filter: blur(12px); }
.secondary-action:hover { color: var(--ink); border-color: rgba(226,239,229,.4); }
.share-status { min-height: 20px; color: var(--moss); font-size: 13px; }

dialog { width: min(610px, calc(100vw - 28px)); max-height: min(84vh, 760px); overflow-y: auto; border: 1px solid var(--line); border-radius: 24px; color: var(--ink); background: rgba(8, 14, 18, .97); padding: clamp(24px, 5vw, 46px); box-shadow: 0 30px 100px #000; }
dialog::backdrop { background: rgba(0, 3, 7, .74); backdrop-filter: blur(9px); }
dialog h2 { font-size: clamp(36px, 6vw, 58px); }
dialog ul { color: var(--muted); line-height: 1.6; padding-left: 20px; }
dialog li + li { margin-top: 8px; }
.dialog-close { position: absolute; top: 14px; right: 14px; width: 44px; height: 44px; border: 0; border-radius: 50%; background: transparent; font-size: 28px; color: var(--muted); cursor: pointer; }
details { margin: 20px 0; color: var(--muted); }
summary { min-height: 44px; display: flex; align-items: center; cursor: pointer; font-size: 13px; }
.signal-strip { margin: 10px 0 22px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; }
.signal-strip div { display: grid; gap: 7px; text-align: left; }
.signal-strip span { color: var(--faint); text-transform: uppercase; font-size: 10px; letter-spacing: .12em; }
.signal-strip div::after { content: ''; height: 2px; background: var(--line); grid-area: 2 / 1; }
.signal-strip i { height: 2px; width: 0%; background: var(--moss); grid-area: 2 / 1; z-index: 1; transition: width .12s linear; box-shadow: 0 0 10px var(--moss); }

@media (max-width: 620px) {
  .threshold, .crystal { justify-content: flex-end; padding: 92px 22px max(30px, env(safe-area-inset-bottom)); }
  h1 { font-size: clamp(54px, 17vw, 80px); }
  .intro { margin: 22px 0 19px; font-size: 15px; }
  .consent-line { font-size: 11px; margin-bottom: 0; }
  .inherit-invitation { margin-bottom: 16px; }
  .game-hud { top: max(74px, calc(env(safe-area-inset-top) + 58px)); }
  .field-status { top: 20%; font-size: clamp(17px, 5.2vw, 23px); }
  .quest-dock { bottom: max(24px, env(safe-area-inset-bottom)); }
  .choice-panel { padding: 100px 12px 70px; }
  .choice-panel > strong { margin-bottom: 18px; }
  .quality-button { width: 88px; min-height: 112px; }
  .crystal h2 { font-size: clamp(45px, 13vw, 70px); }
  .trace-poem { font-size: 17px; margin-top: 18px; }
  .trace-glyph { width: 128px; margin-block: 38px 8px; }
  .trace-glyph b { width: 58px; }
  .crystal-actions { width: 100%; }
  .crystal-actions .enter-button { width: 100%; }
  .signal-strip { grid-template-columns: repeat(2, 1fr); }
}

@media (max-height: 650px) {
  .threshold, .crystal { justify-content: flex-start; padding-top: 82px; }
  h1 { font-size: clamp(48px, 12vh, 68px); }
  .intro { margin-block: 16px; line-height: 1.5; }
  .consent-line { margin-top: 8px; }
  .game-hud { top: 66px; }
  .field-status { top: 21%; font-size: 18px; }
  .quest-dock { bottom: 18px; padding-block: 11px; }
  .choice-panel { padding-block: 72px 16px; }
  .quality-button { min-height: 95px; }
  .quality-button i { width: 58px; }
}

@media (orientation: landscape) and (max-height: 520px) {
  .topbar { padding-top: 8px; }
  .threshold, .crystal { padding: 56px max(26px, env(safe-area-inset-left)) 18px; width: 72%; }
  h1, .crystal h2 { font-size: clamp(42px, 12vh, 62px); }
  .intro { font-size: 14px; max-width: 580px; }
  .game-hud { top: 54px; width: calc(100vw - 60px); }
  .field-status { top: 22%; left: 25%; width: 42%; font-size: 16px; }
  .quest-dock { left: auto; right: max(18px, env(safe-area-inset-right)); translate: 0; bottom: 18px; width: min(44vw, 430px); text-align: left; }
  .choice-panel { padding: 55px 18px 12px; }
  .choice-panel > strong { font-size: 30px; margin: 4px 0 8px; }
  .quality-button { min-height: 82px; }
  .quality-button i { width: 54px; }
  .trace-glyph { position: absolute; left: calc(72% + 5vw); top: 24%; width: 135px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .grain { display: none; }
  .enter-button:hover { transform: none; }
}

@media (forced-colors: active) {
  #field, .grain { opacity: .22; }
  .quest-dock, .choice-panel, dialog { background: Canvas; border: 2px solid CanvasText; }
  .quality-button i, .trace-glyph b, .mark i { border: 2px solid ButtonText; background: Canvas; box-shadow: none; }
  .trace-glyph i { background: CanvasText; }
}