:root {
  --bg-deep: #05060a;
  --bg: #07090f;
  --elevated: #0c1018;
  --fg: #f3f0e8;
  --muted: #9a9a92;
  --life: #3ee0c6;
  --life-dim: rgba(62, 224, 198, 0.18);
  --plasma: #8b7cff;
  --pulse: #f0b429;
  --border: rgba(243, 240, 232, 0.1);
  --surface: rgba(243, 240, 232, 0.045);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 16px;
  --hud: 72px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --font-display: "Fraunces", "Times New Roman", serif;
  --font-body: "Instrument Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--bg-deep);
  color: var(--fg);
  scroll-behavior: auto;
}

html.awake {
  scroll-behavior: smooth;
}

html.reduced {
  scroll-behavior: auto;
}

body {
  margin: 0;
  min-height: 100dvh;
  touch-action: manipulation;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  background:
    radial-gradient(1200px 700px at 70% 20%, rgba(139, 124, 255, 0.09), transparent 55%),
    radial-gradient(900px 600px at 20% 80%, rgba(62, 224, 198, 0.07), transparent 50%),
    var(--bg);
  overflow-x: hidden;
  cursor: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.no-webgl {
  background:
    radial-gradient(ellipse 50% 40% at 50% 48%, rgba(62, 224, 198, 0.28), transparent 60%),
    radial-gradient(ellipse 30% 30% at 58% 42%, rgba(139, 124, 255, 0.2), transparent 55%),
    var(--bg);
}

.is-mobile body,
body.native-cursor {
  cursor: auto;
}

.skip {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 80;
  padding: 10px 14px;
  background: var(--fg);
  color: var(--bg);
  text-decoration: none;
  border-radius: 8px;
  transform: translateY(-140%);
  transition: transform 180ms var(--ease);
}

.skip:focus {
  transform: none;
}

.field,
.cursor-layer {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.field {
  z-index: 0;
}

.cursor-layer {
  z-index: 50;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.09;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.hud {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  padding: calc(16px + var(--safe-top)) 22px 12px;
  pointer-events: none;
  color: var(--fg);
}

.hud-brand,
.hud-actions,
.chapters a,
.icon-btn,
.btn {
  pointer-events: auto;
}

.hud-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.mark {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--life);
  box-shadow: 0 0 16px var(--life);
  animation: breathe 2.8s var(--ease) infinite;
}

.hud-name {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.28em;
  font-weight: 500;
}

.hud-spec {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hud-vitals {
  margin: 0;
  display: flex;
  gap: 18px;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
}

.hud-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.icon-btn {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg);
  border-radius: 999px;
  cursor: pointer;
  transition: transform 200ms var(--ease), background 200ms var(--ease), border-color 200ms var(--ease);
}

.icon-btn:hover {
  background: rgba(243, 240, 232, 0.08);
  border-color: rgba(62, 224, 198, 0.4);
}

.icon-btn:focus-visible,
.btn:focus-visible,
.chapters a:focus-visible {
  outline: 2px solid var(--life);
  outline-offset: 3px;
}

.icon-btn[aria-pressed="true"] {
  color: var(--life);
  border-color: rgba(62, 224, 198, 0.55);
}

.chapters {
  position: fixed;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 30;
  pointer-events: none;
}

.chapters ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.chapters a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 4px 8px;
  color: var(--muted);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-right: 1px solid transparent;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.chapters a:hover,
.chapters a[aria-current="true"] {
  color: var(--fg);
  border-right-color: var(--life);
}

.progress {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  z-index: 30;
  background: rgba(243, 240, 232, 0.06);
}

.progress-bar {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--life), var(--plasma), var(--pulse));
  transform-origin: left;
}

.sr-live {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.gate {
  position: relative;
  z-index: 10;
  min-height: 100dvh;
  display: grid;
  align-content: center;
  justify-items: start;
  gap: 22px;
  padding: calc(var(--hud) + var(--safe-top)) 8vw 12vh;
  max-width: 78rem;
}

.eyebrow,
.index,
.hint,
.seed-line {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}

.gate-title {
  margin: 0;
  display: grid;
  gap: 8px;
}

.gate-kicker {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0;
  text-transform: none;
}

.display {
  font-family: var(--font-display);
  font-weight: 400;
  font-optical-sizing: auto;
  font-size: clamp(3.4rem, 10vw, 8.4rem);
  line-height: 0.88;
  letter-spacing: -0.035em;
  margin: 0;
  max-width: 16ch;
}

.lede,
.copy {
  max-width: 42ch;
  color: color-mix(in srgb, var(--fg) 82%, var(--muted));
  font-size: clamp(1.02rem, 1.4vw, 1.2rem);
  line-height: 1.65;
  margin: 0;
}

.address {
  display: grid;
  gap: 14px;
  width: min(34rem, 100%);
}

.field-row {
  display: grid;
  gap: 6px;
}

.field-row label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.opt {
  letter-spacing: 0.08em;
  opacity: 0.7;
}

.field-row input,
.field-row textarea,
.membrane textarea {
  min-height: 48px;
  width: 100%;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 1rem;
}

.field-row textarea,
.membrane textarea {
  min-height: 120px;
  padding: 12px 14px;
  resize: vertical;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.45;
  letter-spacing: 0;
}

.field-row input:focus,
.field-row textarea:focus,
.membrane textarea:focus {
  outline: 2px solid var(--life);
  outline-offset: 2px;
}

.live-seed {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--life);
}

.examples {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  min-height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  cursor: pointer;
}

.chip:hover,
.chip:focus-visible {
  color: var(--fg);
  border-color: rgba(62, 224, 198, 0.45);
}

.packet {
  display: grid;
  gap: 6px;
  width: min(28rem, 100%);
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.packet div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.packet span {
  color: var(--muted);
}

.packet strong {
  font-weight: 500;
  color: var(--fg);
  text-align: right;
}

.phase-strip {
  display: none;
}

.gate-actions,
.end-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.98rem;
  cursor: pointer;
  transition: transform 180ms var(--ease), background 180ms var(--ease), border-color 180ms var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: scale(0.98);
}

.btn.primary {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

.btn.primary:hover {
  background: #fff;
}

.btn.ghost:hover {
  border-color: var(--life);
  color: var(--life);
}

.cell {
  position: absolute;
  right: 10vw;
  top: 42%;
  width: 180px;
  height: 180px;
  pointer-events: none;
}

.cell-core,
.cell-ring {
  position: absolute;
  inset: 50%;
  border-radius: 50%;
}

.cell-core {
  width: 18px;
  height: 18px;
  margin: -9px;
  background: var(--life);
  box-shadow: 0 0 40px var(--life);
  animation: breathe 2.4s var(--ease) infinite;
}

.cell-ring {
  width: 140px;
  height: 140px;
  margin: -70px;
  border: 1px solid rgba(62, 224, 198, 0.35);
  animation: expand 3.6s var(--ease) infinite;
}

.story {
  position: relative;
  z-index: 8;
}

.story[hidden],
.help[hidden],
.gate[hidden],
.membrane[hidden],
.serum-wrap[hidden] {
  display: none;
}

.membrane {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(5, 6, 10, 0.66);
  backdrop-filter: blur(10px);
}

.membrane-panel {
  width: min(820px, 100%);
  max-height: min(88dvh, 900px);
  overflow: auto;
  background: var(--elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 20px 24px;
}

.membrane-lead {
  color: var(--muted);
  margin: 0 0 12px;
}

.membrane-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}

.membrane-cols h3 {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted);
}

.host-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
  max-height: 240px;
  overflow: auto;
}

.host-list li {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  border: 1px solid transparent;
}

.host-list li:hover,
.host-list li:focus-visible {
  border-color: var(--border);
  background: var(--surface);
}

.host-list.reject li {
  color: var(--muted);
}

.serum-list li {
  flex-wrap: wrap;
  align-items: baseline;
}

.serum-list .meta {
  width: 100%;
  color: var(--muted);
  font-size: 11px;
}

.flag {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: 999px;
  border: 1px solid rgba(240, 180, 41, 0.4);
  color: var(--pulse);
  font-size: 10px;
}

.flag.dead {
  border-color: rgba(220, 38, 38, 0.5);
  color: #f0a0a0;
}

@media (max-width: 700px) {
  .membrane-cols {
    grid-template-columns: 1fr;
  }
}

.chapter {
  min-height: 140vh;
  position: relative;
}

.chapter-inner {
  position: sticky;
  top: 0;
  min-height: 100dvh;
  display: grid;
  align-content: center;
  gap: 20px;
  padding: calc(var(--hud) + var(--safe-top)) 8vw 14vh;
  max-width: 78rem;
}

.chapter-inner::before,
.gate::before {
  content: "";
  position: absolute;
  inset: 12vh auto 12vh 0;
  width: min(52rem, 78vw);
  background: radial-gradient(80% 70% at 20% 50%, rgba(5, 6, 10, 0.72), transparent 72%);
  pointer-events: none;
  z-index: -1;
}

.gate {
  isolation: isolate;
}

.chapter-inner {
  isolation: isolate;
}

.display {
  text-shadow: 0 8px 40px rgba(5, 6, 10, 0.45);
}

.copy,
.lede {
  text-shadow: 0 2px 18px rgba(5, 6, 10, 0.8);
}

.chapter .display {
  display: flex;
  flex-wrap: wrap;
  gap: 0.18em 0.28em;
}

.word {
  display: inline-block;
  will-change: transform;
}

.letter {
  display: inline-block;
  will-change: transform;
}

.lexicon {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.lexicon li {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  color: color-mix(in srgb, var(--life) 70%, var(--fg));
  opacity: 0.72;
  animation: drift 9s ease-in-out infinite;
}

.lexicon li:nth-child(2) { animation-delay: -1.6s; color: color-mix(in srgb, var(--plasma) 70%, var(--fg)); }
.lexicon li:nth-child(3) { animation-delay: -3.2s; }
.lexicon li:nth-child(4) { animation-delay: -4.8s; color: color-mix(in srgb, var(--pulse) 55%, var(--fg)); }
.lexicon li:nth-child(5) { animation-delay: -6.1s; }

.feed {
  width: max-content;
}

.help {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(5, 6, 10, 0.62);
  backdrop-filter: blur(10px);
}

.help-panel {
  width: min(520px, 100%);
  background: var(--elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 22px 26px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

.help-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.help-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
}

.keys {
  list-style: none;
  padding: 0;
  margin: 18px 0;
  display: grid;
  gap: 10px;
}

.keys li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
}

kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 7px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--fg);
  min-width: 1.8em;
  text-align: center;
}

.breath-dock {
  position: fixed;
  left: 18px;
  bottom: calc(42px + var(--safe-bottom));
  z-index: 40;
  width: 280px;
  pointer-events: auto;
}

.breath-dock[hidden] {
  display: none;
}

.yt-frame {
  width: 280px;
  height: 158px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #05060a;
}

.yt-frame iframe {
  display: block;
  width: 280px;
  height: 158px;
  border: 0;
}

.breath-play {
  width: 100%;
  margin-top: 8px;
  min-height: 40px;
}

.breath-credit {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
}

.breath-credit:hover,
.breath-credit:focus-visible {
  color: var(--life);
}

.status {
  position: fixed;
  left: 22px;
  bottom: calc(14px + var(--safe-bottom));
  z-index: 30;
  display: flex;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  pointer-events: none;
}

.fps {
  color: var(--life);
}

body.awake .gate {
  animation: lift 900ms var(--ease) forwards;
}

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.35); opacity: 0.65; }
}

@keyframes expand {
  0% { transform: scale(0.55); opacity: 0.7; }
  100% { transform: scale(1.25); opacity: 0; }
}

@keyframes drift {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(12px, -10px, 0); }
}

@keyframes lift {
  to { opacity: 0; visibility: hidden; }
}

@media (max-width: 900px) {
  .hud {
    grid-template-columns: 1fr auto;
  }

  .hud-vitals {
    display: none;
  }

  .chapters {
    display: none;
  }

  .cell {
    display: none;
  }

  .display {
    font-size: clamp(2.6rem, 16vw, 4.6rem);
  }

  .chapter {
    min-height: 125vh;
  }

  .gate-actions .btn {
    width: 100%;
  }

  .phase-strip {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: calc(10px + var(--safe-bottom));
    z-index: 30;
    pointer-events: none;
  }

  .phase-strip ol {
    list-style: none;
    margin: 0 auto;
    padding: 0;
    width: max-content;
    display: flex;
    gap: 4px;
    pointer-events: auto;
  }

  .phase-strip button {
    width: 36px;
    height: 36px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(7, 9, 15, 0.72);
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 10px;
    cursor: pointer;
  }

  .phase-strip button[aria-current="true"] {
    color: var(--bg);
    background: var(--life);
    border-color: var(--life);
  }

  .breath-dock {
    left: 12px;
    right: 12px;
    width: auto;
    bottom: calc(56px + var(--safe-bottom));
  }

  .yt-frame,
  .yt-frame iframe {
    width: 100%;
    height: 160px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .mark,
  .cell-core,
  .cell-ring,
  .lexicon li {
    animation: none;
  }

  .grain {
    display: none;
  }
}

@media (pointer: coarse) {
  body {
    cursor: auto;
  }

  .cursor-layer {
    display: none;
  }
}