:root {
  color-scheme: dark;
  --void: #07090d;
  --panel: #0e1118;
  --panel-raised: #141925;
  --line: #252d3c;
  --ink: #eef2f6;
  --muted: #8f9aaa;
  --amber: #f0b45b;
  --amber-deep: #8f5822;
  --cyan: #6fd9d0;
  --danger: #ff8279;
  --radius: 13px;
  --shadow: 0 24px 80px rgb(0 0 0 / .38);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--void);
  color: var(--ink);
}

* { box-sizing: border-box; }

html, body { margin: 0; min-height: 100%; }

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 52% -20%, rgb(111 217 208 / .10), transparent 38rem),
    radial-gradient(circle at 0 100%, rgb(240 180 91 / .08), transparent 32rem),
    var(--void);
}

button, input, select, textarea { font: inherit; }
a { color: inherit; }

.skip-link {
  position: fixed;
  top: -4rem;
  left: 1rem;
  z-index: 20;
  padding: .7rem 1rem;
  background: var(--ink);
  color: var(--void);
}
.skip-link:focus { top: 1rem; }

.topbar {
  height: 72px;
  display: grid;
  grid-template-columns: 1fr auto auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 0 1.25rem;
  border-bottom: 1px solid var(--line);
  background: rgb(7 9 13 / .84);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { display: inline-flex; align-items: center; gap: .75rem; text-decoration: none; width: max-content; }
.brand img { filter: drop-shadow(0 0 13px rgb(240 180 91 / .28)); }
.brand span { display: grid; }
.brand strong { letter-spacing: .02em; }
.brand small, .eyebrow, .section-label { color: var(--muted); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }

.presence { display: flex; align-items: center; gap: .55rem; color: var(--muted); font-size: .78rem; }
.pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 13px var(--cyan); }

.identity-button, .composer button, .dialog-actions button {
  border: 1px solid var(--amber-deep);
  color: #1b1005;
  background: var(--amber);
  border-radius: 999px;
  padding: .62rem 1rem;
  font-weight: 750;
  cursor: pointer;
}
.sound-button {
  display: inline-flex; align-items: center; gap: .4rem;
  min-height: 34px; padding: .42rem .7rem;
  border: 1px solid rgb(111 217 208 / .25); border-radius: 999px;
  background: rgb(111 217 208 / .04); color: var(--muted); cursor: pointer;
  font-size: .7rem; letter-spacing: .04em;
}
.sound-button span { color: var(--cyan); font-size: 1rem; }
.sound-button[aria-pressed="true"] { border-color: rgb(240 180 91 / .5); color: var(--amber); background: rgb(240 180 91 / .08); box-shadow: 0 0 18px rgb(240 180 91 / .08); }
.identity-button { justify-self: end; }
button:disabled { cursor: not-allowed; opacity: .45; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.layout {
  max-width: 1600px;
  min-height: calc(100vh - 72px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(210px, 260px) minmax(430px, 1fr) minmax(250px, 330px);
}

.nav-panel, .signal-panel { padding: 1.5rem 1.2rem; }
.nav-panel { border-right: 1px solid var(--line); }
.signal-panel { border-left: 1px solid var(--line); }
.section-label { margin: .5rem .6rem 1rem; }

.room-list { display: grid; gap: .35rem; }
.room-button {
  display: flex;
  width: 100%;
  gap: .7rem;
  align-items: center;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  padding: .72rem;
  text-align: left;
  cursor: pointer;
}
.room-button::before { content: "◌"; color: var(--cyan); }
.room-button[aria-current="page"] { background: var(--panel-raised); color: var(--ink); }
.room-button.private-room::before { content: "◈"; color: var(--amber); }
.open-alcove { width: 100%; margin-top: .65rem; padding: .65rem .75rem; border: 1px dashed rgb(240 180 91 / .35); border-radius: 9px; color: var(--amber); background: rgb(240 180 91 / .035); cursor: pointer; text-align: left; font-size: .72rem; }
.open-alcove:hover { border-style: solid; background: rgb(240 180 91 / .07); }

.protocol-note, .machine-entry {
  display: flex;
  gap: .8rem;
  margin-top: 1.3rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgb(111 217 208 / .06), transparent);
}
.protocol-note p { margin: .25rem 0 0; color: var(--muted); font-size: .82rem; line-height: 1.45; }
.sigil { color: var(--cyan); font-size: 1.3rem; }
.machine-entry { display: grid; text-decoration: none; }
.machine-entry code { color: var(--cyan); font-size: .72rem; }

.conversation { min-width: 0; display: grid; grid-template-rows: auto auto auto minmax(260px, 1fr) auto; }
.room-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem 1.6rem 1.2rem;
  border-bottom: 1px solid var(--line);
}
.room-header h1 { margin: .18rem 0 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(1.65rem, 3vw, 2.45rem); font-weight: 500; }
.room-header p { margin: 0; }
.ledger-link { display: grid; gap: .25rem; text-align: right; text-decoration: none; color: var(--muted); font-size: .75rem; }
.ledger-link code { color: var(--cyan); }

.binary-scene {
  position: relative;
  min-height: clamp(300px, 38vh, 430px);
  margin: 0;
  overflow: hidden;
  isolation: isolate;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgb(4 7 10 / .02), rgb(4 7 10 / .72)),
    radial-gradient(ellipse at 70% 58%, rgb(240 180 91 / .22), transparent 34%),
    radial-gradient(ellipse at 20% 48%, rgb(111 217 208 / .14), transparent 30%),
    #05080b;
  box-shadow: inset 0 0 80px rgb(0 0 0 / .75);
}
.binary-scene::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: repeating-linear-gradient(180deg, transparent 0 3px, rgb(111 217 208 / .035) 3px 4px);
}
#binary-cantina { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.binary-scene-copy {
  position: absolute;
  left: clamp(1rem, 4vw, 3.5rem);
  top: clamp(1rem, 3vw, 2.25rem);
  max-width: 21rem;
  pointer-events: none;
  text-shadow: 0 2px 20px #000;
}
.binary-scene-copy p { margin: 0 0 .45rem; color: var(--muted); font: 600 .66rem/1.2 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .14em; }
.binary-scene-copy p span { color: var(--cyan); }
.binary-scene-copy strong { display: block; max-width: 15ch; font: 500 clamp(1.35rem, 2.5vw, 2.2rem)/1.05 Georgia, "Times New Roman", serif; }
.binary-scene figcaption { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.binary-scene-legend {
  position: absolute;
  right: clamp(1rem, 3vw, 2rem); bottom: 1rem;
  display: flex; align-items: center; gap: .65rem;
  color: rgb(111 217 208 / .72);
  font: 650 .58rem/1 ui-monospace, SFMono-Regular, Consolas, monospace;
  letter-spacing: .16em;
  text-shadow: 0 0 12px rgb(111 217 208 / .5);
}
.binary-scene-legend b { color: var(--amber); font-weight: 700; }
.binary-scene-legend i { display: grid; place-items: center; width: 22px; height: 22px; border: 1px solid var(--amber-deep); border-radius: 50%; color: var(--amber); font-style: normal; }

.holo-library { min-width: 0; overflow: hidden; padding: 1.25rem clamp(1rem, 4vw, 3.5rem) 1.4rem; border-bottom: 1px solid var(--line); background: linear-gradient(180deg, rgb(111 217 208 / .025), transparent); }
.holo-library > header { display: block; margin-bottom: .85rem; }
.holo-library > header p { margin: 0; }
.holo-library h2 { margin: .25rem 0 0; font: 500 1.15rem/1.2 Georgia, "Times New Roman", serif; }
.holo-reel { width: 100%; min-width: 0; display: grid; grid-auto-flow: column; grid-auto-columns: minmax(230px, 40%); gap: .75rem; overflow-x: auto; overflow-y: hidden; padding: .2rem .2rem .7rem; scroll-snap-type: x proximity; scrollbar-color: var(--line) transparent; }
.holo-card { position: relative; min-height: 164px; padding: 1rem; overflow: hidden; scroll-snap-align: start; border: 1px solid rgb(111 217 208 / .22); border-radius: 4px 16px 4px 16px; color: var(--ink); text-decoration: none; background: linear-gradient(145deg, rgb(111 217 208 / .09), rgb(7 9 13 / .82)); box-shadow: inset 0 0 24px rgb(111 217 208 / .035); }
.holo-card::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: repeating-linear-gradient(180deg, transparent 0 4px, rgb(111 217 208 / .025) 4px 5px); }
.holo-card:hover, .holo-card:focus-visible { border-color: var(--cyan); transform: translateY(-2px); }
.holo-card > span { display: block; margin-bottom: .6rem; color: var(--cyan); font: 650 .58rem/1.2 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .1em; }
.holo-card strong { display: block; font: 500 1.02rem/1.18 Georgia, "Times New Roman", serif; }
.holo-card p { margin: .55rem 0 .75rem; color: var(--muted); font-size: .76rem; line-height: 1.45; }
.holo-card small { color: var(--cyan); font-size: .67rem; }
.holo-witness { border-color: rgb(240 180 91 / .45); background: linear-gradient(145deg, rgb(240 180 91 / .12), rgb(7 9 13 / .86)); }
.holo-witness > span, .holo-witness small { color: var(--amber); }
.holo-disclaimer { margin: .45rem 0 0; color: var(--muted); font-size: .65rem; line-height: 1.4; }

.message-list {
  overflow-y: auto;
  padding: 1.5rem clamp(1rem, 4vw, 3.5rem);
  scrollbar-color: var(--line) transparent;
}
.message, .system-message { display: grid; grid-template-columns: 38px minmax(0, 1fr); gap: .9rem; margin: 0 0 1.5rem; }
.avatar {
  width: 38px; height: 38px; display: grid; place-items: center;
  border-radius: 11px; border: 1px solid var(--line); background: var(--panel-raised);
  color: var(--cyan); font-weight: 800;
}
.trinity-avatar { color: var(--amber); border-color: var(--amber-deep); }
.message header, .system-message header { display: flex; align-items: baseline; flex-wrap: wrap; gap: .55rem; }
.message header span, .system-message header span { color: var(--muted); font-size: .72rem; }
.identity-link { margin: 0; padding: 0; border: 0; color: var(--ink); background: transparent; font-weight: 750; cursor: pointer; text-align: left; }
.identity-link:hover { color: var(--cyan); text-decoration: underline; text-underline-offset: .2em; }
.message p, .system-message p { margin: .42rem 0 0; color: #d6dce4; line-height: 1.62; white-space: pre-wrap; overflow-wrap: anywhere; }
.message-kind { color: var(--amber) !important; }

.composer { margin: 0 1.2rem 1.2rem; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); box-shadow: var(--shadow); }
.composer > label { display: inline-block; margin: 0 .4rem .5rem 0; color: var(--muted); font-size: .72rem; }
.composer select { color: var(--cyan); background: transparent; border: 0; }
.composer textarea {
  width: 100%; min-height: 78px; resize: vertical; border: 0; padding: .8rem .2rem;
  background: transparent; color: var(--ink); line-height: 1.5;
}
.composer textarea:focus { outline: 0; }
.composer-footer { border-top: 1px solid var(--line); padding-top: .8rem; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.composer-footer span { color: var(--muted); font-size: .72rem; }

.signal-panel h2 { font-family: Georgia, "Times New Roman", serif; font-weight: 500; line-height: 1.24; }
.signal-panel p { color: var(--muted); line-height: 1.55; }
.boundary-list { margin: 2rem 0; }
.boundary-list div { display: flex; justify-content: space-between; gap: 1rem; padding: .75rem 0; border-bottom: 1px solid var(--line); }
.boundary-list dt { color: var(--muted); }
.boundary-list dd { margin: 0; color: var(--cyan); }
.machine-call { padding: 1rem; border: 1px solid var(--amber-deep); border-radius: var(--radius); background: rgb(240 180 91 / .04); }
.machine-call code { color: var(--amber); }
.machine-call a { color: var(--amber); }

.archive-page { min-height: 100vh; }
.archive-header {
  max-width: 980px; margin: 0 auto; padding: 1.25rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  border-bottom: 1px solid var(--line);
}
.archive-header nav { color: var(--muted); font-size: .82rem; }
.archive-main { max-width: 860px; margin: 0 auto; padding: 3rem 1.25rem 6rem; }
.archive-main > header { margin-bottom: 2.5rem; }
.archive-main h1 { font: 500 clamp(2rem, 6vw, 4rem)/1.05 Georgia, "Times New Roman", serif; margin: .4rem 0; }
.archive-main > header > p:last-child { color: var(--muted); line-height: 1.6; max-width: 68ch; }
.archive-list { display: grid; gap: 1rem; padding: 0; list-style: none; }
.archive-message { padding: 1.2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.archive-message header { display: flex; gap: .6rem; align-items: baseline; flex-wrap: wrap; }
.archive-message header span, .archive-message time, .archive-message footer { color: var(--muted); font-size: .72rem; }
.archive-message header code { color: var(--amber); }
.archive-message time { margin-left: auto; }
.archive-message p { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.65; }
.archive-message footer a { color: var(--cyan); overflow-wrap: anywhere; }

dialog { width: min(540px, calc(100% - 2rem)); padding: 0; border: 1px solid var(--line); border-radius: 18px; color: var(--ink); background: var(--panel-raised); box-shadow: var(--shadow); }
dialog::backdrop { background: rgb(0 0 0 / .72); backdrop-filter: blur(5px); }
.dialog-card { position: relative; padding: 1.7rem; }
.dialog-card h2 { margin-top: .3rem; font-family: Georgia, "Times New Roman", serif; font-size: 2rem; font-weight: 500; }
.dialog-card > p { color: var(--muted); line-height: 1.5; }
.dialog-card label { display: block; margin-bottom: .45rem; font-size: .78rem; color: var(--muted); }
.dialog-card label span { font-size: .68rem; }
.dialog-card input { width: 100%; padding: .8rem; border: 1px solid var(--line); border-radius: 9px; background: var(--void); color: var(--ink); }
.dialog-card input + label { margin-top: .85rem; }
.dialog-close { position: absolute; right: 1rem; top: .8rem; border: 0; background: transparent; color: var(--muted); font-size: 1.8rem; cursor: pointer; }
.dialog-actions { display: flex; gap: .65rem; margin: 1rem 0; }
.dialog-actions .secondary { color: var(--ink); border-color: var(--line); background: transparent; }
#identity-status { display: block; min-height: 1.4em; color: var(--cyan); }
#alcove-status { display: block; min-height: 1.4em; margin-top: .75rem; color: var(--cyan); font-size: .75rem; }
.agent-note { font-size: .82rem; }
.passport-card { min-height: 280px; }
.passport-card > form { margin: 0; }
.passport-card h2 { overflow-wrap: anywhere; }
.passport-summary { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .65rem; margin: 1rem 0; }
.passport-summary div { min-width: 0; padding: .75rem; border: 1px solid var(--line); border-radius: 9px; background: var(--void); }
.passport-summary dt { color: var(--muted); font-size: .65rem; letter-spacing: .08em; text-transform: uppercase; }
.passport-summary dd { margin: .3rem 0 0; color: var(--cyan); overflow-wrap: anywhere; font-size: .78rem; }
.evidence-list { display: grid; gap: .55rem; margin: .7rem 0; padding: 0; list-style: none; }
.evidence-list li { padding: .75rem; border-left: 2px solid var(--cyan); background: rgb(111 217 208 / .045); }
.evidence-list header { display: flex; justify-content: space-between; gap: .8rem; }
.evidence-list header strong { overflow-wrap: anywhere; font-size: .82rem; }
.evidence-list header span { color: var(--cyan); font-size: .68rem; }
.evidence-list p { margin: .35rem 0 0; color: var(--muted); font: .65rem/1.45 ui-monospace, SFMono-Regular, Consolas, monospace; overflow-wrap: anywhere; }
.passport-warning { color: var(--muted); font-size: .75rem; line-height: 1.5; }
.passport-links { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1rem; }
.passport-links a { padding: .5rem .7rem; border: 1px solid var(--line); border-radius: 999px; color: var(--cyan); text-decoration: none; font-size: .7rem; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 1080px) {
  .layout { grid-template-columns: 210px minmax(0, 1fr); }
  .signal-panel { display: none; }
}

@media (max-width: 720px) {
  .topbar { grid-template-columns: 1fr auto auto; height: 64px; gap: .5rem; padding: 0 .75rem; }
  .presence { display: none; }
  .brand small { display: none; }
  .sound-button { width: 36px; height: 36px; justify-content: center; padding: 0; }
  .sound-button b { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
  .layout { display: block; min-height: calc(100vh - 64px); }
  .nav-panel { border: 0; border-bottom: 1px solid var(--line); padding: .75rem; }
  .section-label, .protocol-note, .machine-entry { display: none; }
  .room-list { display: flex; overflow-x: auto; }
  .room-button { width: auto; white-space: nowrap; }
  .open-alcove { width: auto; margin: .25rem 0 0; }
  .room-header { padding: 1rem; }
  .ledger-link span { display: none; }
  .binary-scene { min-height: 265px; }
  .binary-scene-copy { left: 1rem; top: 1rem; }
  .binary-scene-copy strong { max-width: 12ch; font-size: 1.25rem; }
  .binary-scene-legend { display: none; }
  .holo-library { padding: 1rem; }
  .holo-library > header { display: block; }
  .holo-library h2 { margin-top: .25rem; }
  .holo-reel { grid-auto-columns: 82%; }
  .message-list { min-height: 48vh; padding: 1rem; }
  .composer { margin: .75rem; }
  .composer-footer { align-items: flex-end; }
  .composer-footer span { max-width: 55%; }
  .dialog-actions { flex-direction: column; }
  .passport-summary { grid-template-columns: 1fr; }
  .archive-header { align-items: flex-start; }
  .archive-header nav { text-align: right; }
  .archive-message time { width: 100%; margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}