* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.55;
}

body {
  background: radial-gradient(120% 70% at 30% 0%, var(--bg-glow) 0%, var(--bg) 60%) fixed var(--bg);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.05;
  background-image: repeating-radial-gradient(circle at 17% 32%, #fff 0 1px, transparent 1px 3px);
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 16px 32px;
  min-height: 100dvh;
}

.hud-bar {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--hud);
}

.hud-clock {
  border: 1px solid var(--hud-dim);
  padding: 1px 8px;
}

.screen {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

[hidden] {
  display: none !important;
}

h1,
h2 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.1;
  margin: 0;
  color: var(--text-strong);
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.6rem, 9vw, 3.8rem);
  font-style: italic;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 1.6rem;
}

p {
  margin: 0;
}

.eyebrow {
  color: var(--hud);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hint {
  color: var(--muted);
  font-size: 0.95rem;
}

.notice {
  background: var(--hud-wash);
  border: 1px solid var(--hud-dim);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--muted);
  font-size: 0.95rem;
}

.notice strong {
  color: var(--hud);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.fiction-notice {
  margin: 0;
  padding-left: 12px;
  border-left: 3px solid var(--hud);
  color: var(--text);
  font-size: 1rem;
  line-height: 1.5;
}

label {
  display: block;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--hud);
  margin-bottom: 8px;
}

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

input,
textarea {
  flex: 1 1 200px;
  min-width: 0;
  background: var(--hud-wash);
  color: var(--text-strong);
  border: 1px solid var(--hud-dim);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 0.92rem;
}

input::placeholder,
textarea::placeholder {
  color: var(--muted);
}

textarea {
  resize: vertical;
}

input:focus-visible,
textarea:focus-visible,
button:focus-visible,
summary:focus-visible,
a:focus-visible {
  outline: 2px solid var(--hud);
  outline-offset: 2px;
}

a {
  color: var(--paper-blue);
}

button {
  background: var(--hud);
  color: var(--hud-text);
  border: 0;
  border-radius: var(--radius);
  padding: 12px 18px;
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  min-height: 44px;
}

button:disabled {
  opacity: 0.5;
  cursor: progress;
}

button.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 8px 12px;
}

button.ghost:hover:not(:disabled) {
  color: var(--text);
  border-color: var(--hud-dim);
}

.error {
  color: var(--error);
  font-family: var(--mono);
  font-size: 0.85rem;
}

/* Cast: each person is a frozen photograph; colour comes back when you approach. */

.cards {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.card {
  width: 100%;
  text-align: left;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 16px;
  font-family: var(--body);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.portrait {
  flex: none;
  image-rendering: pixelated;
  border-radius: 0;
  border: 1px solid var(--hud-dim);
  outline: 1px solid var(--hud-dim);
  outline-offset: 3px;
  filter: grayscale(1) contrast(1.1) brightness(0.95);
}

.portrait-card {
  width: 96px;
  height: 96px;
  transition: filter 0.4s ease;
}

.portrait-header {
  width: 96px;
  height: 96px;
}

.card:hover {
  border-color: var(--hud-dim);
  background: var(--surface-2);
}

.card:hover .portrait-card,
.card:focus-visible .portrait-card {
  filter: grayscale(0.2) contrast(1.05);
}

.card strong {
  display: block;
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.35rem;
  line-height: 1.2;
  color: var(--text-strong);
  margin-bottom: 4px;
}

.card span {
  color: var(--muted);
  font-size: 0.95rem;
}

/* Conversation */

.chat-header {
  display: flex;
  gap: 16px;
  align-items: flex-end;
}

.chat-header > div {
  min-width: 0;
}

.chat-header #back {
  flex: none;
  align-self: flex-start;
  white-space: nowrap;
}

.chat-header h2 {
  font-size: 1.75rem;
  margin-bottom: 4px;
}

.case-line {
  font-size: 0.95rem;
  color: var(--muted);
}

.messages {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.turn {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  scroll-margin-bottom: calc(var(--composer-height, 0px) + 12px);
}

.turn.user {
  justify-content: flex-end;
}

.portrait-line {
  width: 44px;
  height: 44px;
  outline-offset: 2px;
}

.message {
  max-width: min(92%, 62ch);
  min-width: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.message.user {
  padding: 8px 12px;
  border: 1px solid var(--hud-dim);
  border-radius: var(--radius);
  background: var(--hud-wash);
  color: var(--hud);
  font-family: var(--mono);
  font-size: 0.88rem;
}

.message.user .text::before {
  content: "› ";
}

.message.assistant {
  padding: 2px 0 2px 14px;
  border-left: 1px solid var(--muted);
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--text);
}

.message.assistant.unverified {
  border-left-style: dashed;
}

.unverified-badge {
  display: inline-block;
  margin-bottom: 6px;
  padding: 1px 8px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  font-family: var(--mono);
  font-style: normal;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.turn.user.failed .message {
  opacity: 0.6;
  border: 1px dashed var(--error);
}

.message .failure {
  display: block;
  margin-top: 6px;
  color: var(--error);
  font-size: 0.85em;
}

.turn.pending .text::after {
  content: "▍";
  color: var(--hud);
  font-style: normal;
  animation: blink 1s steps(1) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

/* Sources: archive tags and cards, the one paper object in the scene. */

.sources {
  margin-top: 10px;
  white-space: normal;
  font-style: normal;
}

button.sources-trigger {
  background: transparent;
  color: var(--paper);
  border: 1px solid color-mix(in srgb, var(--paper) 45%, transparent);
  border-radius: 2px;
  padding: 2px 10px;
  min-height: 32px;
  font-family: var(--archive);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

button.sources-trigger:hover,
button.sources-trigger[aria-expanded="true"] {
  background: var(--paper);
  color: var(--paper-ink);
}

.sources-none {
  margin-top: 8px;
  color: var(--muted);
  font-family: var(--mono);
  font-style: normal;
  font-size: 0.75rem;
  white-space: normal;
}

.sources-popover {
  position: fixed;
  inset: auto;
  margin: 0;
  padding: 4px 16px 14px;
  overflow-y: auto;
  background: var(--paper);
  background-image: repeating-linear-gradient(0deg, transparent 0 27px, rgb(31 42 58 / 0.06) 27px 28px);
  color: var(--paper-ink);
  border: 1px solid var(--paper-line);
  border-radius: 2px;
  box-shadow: 0 14px 36px rgb(0 0 0 / 0.55);
  font-family: var(--body);
  font-style: normal;
  white-space: normal;
}

.source {
  margin-top: 12px;
  font-size: 0.92rem;
}

.source strong {
  font-family: var(--archive);
  font-size: 0.95rem;
}

.source + .source {
  border-top: 1px dashed var(--paper-line);
  padding-top: 12px;
}

.source .ref {
  color: var(--paper-muted);
  font-family: var(--archive);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.source blockquote {
  margin: 8px 0 6px;
  padding-left: 10px;
  border-left: 2px solid var(--paper-line);
  font-style: italic;
  white-space: pre-wrap;
}

.source a {
  font-family: var(--archive);
  font-size: 0.8rem;
}

/* Composer: the investigator's instrument panel. */

.composer {
  position: sticky;
  bottom: 0;
  padding: 12px 0;
  background: linear-gradient(transparent, var(--bg) 12px);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dialogue {
  background: color-mix(in srgb, var(--hud) 4%, var(--bg));
  border: 1px solid var(--hud-dim);
  border-radius: var(--radius);
  box-shadow: 0 -8px 24px var(--bg);
  padding: 10px 8px 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.dialogue-title {
  padding: 0 10px;
}

.choices-view {
  display: flex;
  flex-direction: column;
}

.choices {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: calc(44px * 4.5);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--hud-dim) transparent;
}

button.choice {
  width: 100%;
  display: flex;
  gap: 8px;
  text-align: left;
  background: transparent;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.88rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  padding: 10px 10px 10px 8px;
  border-radius: 2px;
}

button.choice::before {
  content: "›";
  color: var(--hud);
  opacity: 0;
  flex: none;
}

button.choice:hover:not(:disabled),
button.choice:focus-visible {
  background: var(--hud-wash);
  color: var(--hud);
  outline: none;
}

button.choice:hover:not(:disabled)::before,
button.choice:focus-visible::before {
  opacity: 1;
}

button.choice.is-secret {
  color: var(--secret);
}

button.choice.is-asked {
  color: var(--muted);
}

button.choice:disabled {
  cursor: progress;
}

button.choice-write {
  margin-top: 4px;
  border-top: 1px dashed var(--hud-dim);
  border-radius: 0;
  color: var(--muted);
}

button.choice-write::before {
  content: "_";
  opacity: 1;
}

.ask {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0 2px;
}

.ask-actions {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.ask-actions #send {
  margin-left: auto;
}

.case-brief {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-bottom: 8px;
}

.case-question {
  font-family: var(--display);
  font-size: clamp(1.9rem, 7vw, 2.6rem);
  font-weight: 600;
  font-style: italic;
  line-height: 1.12;
  color: var(--text-strong);
  text-wrap: balance;
}

#cast-progress {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--hud);
}

.case-line .eyebrow {
  margin-right: 6px;
}

.conversation {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.tabs {
  display: flex;
  gap: 8px;
}

button.tab {
  flex: 1;
  position: relative;
}

button.tab[aria-pressed="true"] {
  color: var(--hud);
  border-color: var(--hud);
  background: var(--hud-wash);
}

button.tab.has-news::after {
  content: "";
  position: absolute;
  top: 8px;
  right: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--hud);
}

#chat[data-tab="conversation"] .diary,
#chat[data-tab="diary"] .conversation {
  display: none;
}

/* Diary: an evidence log on the instrument. */

.diary {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  font-family: var(--mono);
  font-size: 0.85rem;
}

.diary > * {
  flex-shrink: 0;
}

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

.diary-head h2 {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--hud);
}

.diary-count {
  color: var(--hud);
  font-variant-numeric: tabular-nums;
}

.diary progress {
  width: 100%;
  height: 4px;
  border: 0;
  border-radius: 0;
  background: var(--hud-wash);
  accent-color: var(--hud);
}

.diary progress::-webkit-progress-bar {
  background: var(--hud-wash);
}

.diary progress::-webkit-progress-value {
  background: var(--hud);
}

.diary progress::-moz-progress-bar {
  background: var(--hud);
}

.diary-lines {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}

.diary-line {
  padding: 10px 2px;
  border-top: 1px dashed var(--hud-dim);
  color: var(--text);
  line-height: 1.6;
}

.diary-line:last-child {
  border-bottom: 1px dashed var(--hud-dim);
}

.diary-line.is-secret .diary-owner {
  color: var(--secret);
}

.diary-line.is-new {
  animation: diary-flash 1.6s ease-out;
}

@keyframes diary-flash {
  from {
    background: color-mix(in srgb, var(--hud) 22%, transparent);
  }
}

.diary-owner {
  display: block;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.diary-word {
  color: var(--text-strong);
  text-decoration: underline;
  text-decoration-color: var(--hud);
  text-underline-offset: 3px;
}

/* Keep the sentence on one flow: the blank sits inline and wraps like a word. */
.fill {
  display: block;
}

.fill > span {
  display: inline;
}

.fill input {
  display: inline-block;
  vertical-align: baseline;
  width: 10ch;
  margin: 2px 4px;
  padding: 2px 6px;
  border: 0;
  border-bottom: 1px solid var(--hud);
  border-radius: 0;
  background: var(--hud-wash);
  font-size: 0.85rem;
}

.fill button {
  display: inline-block;
  vertical-align: baseline;
  margin-left: 6px;
  min-height: 28px;
  background: transparent;
  color: var(--hud);
  border: 1px solid var(--hud-dim);
  padding: 2px 10px;
  font-size: 0.72rem;
}

.fill button:disabled {
  border-color: var(--border);
  color: var(--muted);
}

.fill-feedback {
  display: block;
  margin-top: 4px;
  color: var(--error);
  font-size: 0.78rem;
}

#diary-hint {
  font-family: var(--mono);
  font-size: 0.78rem;
}

.diary-closing {
  background: var(--paper);
  color: var(--paper-ink);
  border: 1px solid var(--paper-line);
  border-radius: 2px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--body);
  font-size: 0.95rem;
}

.diary-closing h3 {
  margin: 0;
  font-family: var(--archive);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.diary-closing ul {
  margin: 0;
  padding-left: 18px;
  color: var(--paper-muted);
  font-size: 0.88rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

@media (max-width: 520px) {
  .portrait-card,
  .portrait-header {
    width: 72px;
    height: 72px;
  }

  .chat-header {
    flex-wrap: wrap;
    align-items: center;
  }

  .chat-header #back {
    flex-basis: 100%;
    align-self: auto;
    justify-self: start;
    width: max-content;
  }
}

@media (max-height: 860px) and (max-width: 959px) {
  .choices {
    max-height: calc(44px * 3.5);
  }
}

@media (min-width: 960px) {
  #app:has(> #chat:not([hidden])) {
    max-width: 1120px;
  }

  .tabs {
    display: none;
  }

  .chat-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 32px;
    align-items: start;
  }

  #chat[data-tab] .conversation,
  #chat[data-tab] .diary {
    display: flex;
  }

  .diary {
    position: sticky;
    top: 16px;
    max-height: calc(100dvh - 32px);
    overflow-y: auto;
    padding: 12px 14px;
    border: 1px solid var(--hud-dim);
    border-radius: var(--radius);
    background: var(--hud-wash);
  }
}

@media (prefers-reduced-motion: reduce) {
  .turn.pending .text::after,
  .diary-line.is-new {
    animation: none;
  }

  .portrait-card {
    transition: none;
  }

  .diary-line.is-new {
    background: color-mix(in srgb, var(--hud) 12%, transparent);
  }
}

.hint a {
  color: var(--hud);
}

/* Diary mechanics: lock, clue, bet, confront, conclusion. */

.diary-locked {
  display: inline-block;
  min-width: 9ch;
  margin: 0 4px;
  border-bottom: 1px dashed var(--muted);
  color: var(--muted);
  font-size: 0.75rem;
  text-align: center;
}

.diary-lock-note,
.diary-clue-note {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.75rem;
}

.diary-clue {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 6px;
  padding-left: 10px;
  border-left: 2px solid var(--hud-dim);
  color: var(--text);
  font-size: 0.8rem;
}

.diary-clue-ref {
  color: var(--muted);
  font-size: 0.72rem;
}

.diary-card,
.confront {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--hud-dim);
  border-radius: var(--radius);
}

.diary-card h3,
.confront h3 {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--hud);
}

.confront.is-secret h3 {
  color: var(--secret);
}

.diary-confronts {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.diary-confronts:empty {
  display: none;
}

.confront-sides {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 8px;
}

.confront-side {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  padding: 8px;
  background: var(--hud-wash);
}

.confront-side h4,
.stance h4,
.closing-bet h4 {
  margin: 0;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.confront-tag {
  color: var(--hud);
  font-size: 0.75rem;
}

.diary select {
  max-width: 100%;
  padding: 4px 6px;
  border: 1px solid var(--hud-dim);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.75rem;
}

.confront-form,
.conclusion-form,
.bet-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.confront-form p {
  margin: 0;
}

.confront-option,
.stance-line {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  line-height: 1.45;
  cursor: pointer;
}

.confront-option input,
.stance-line input {
  margin-top: 3px;
  accent-color: var(--hud);
}

.stance-line.is-wrong span {
  color: var(--error);
}

.confront-solved {
  margin: 0;
  color: var(--hud);
}

.diary-card button,
.confront button,
.bet-dialog button {
  align-self: flex-start;
  min-height: 36px;
  padding: 6px 14px;
}

.stance,
.bet-question {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0;
  padding: 0;
  border: 0;
}

.stance legend,
.bet-question legend {
  margin-bottom: 6px;
  color: var(--text-strong);
}

.bet-question {
  flex-direction: row;
  flex-wrap: wrap;
  gap: 8px;
}

.choice-pill {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  padding: 6px 12px;
  border: 1px solid var(--hud-dim);
  border-radius: var(--radius);
  cursor: pointer;
}

.choice-pill:has(input:checked) {
  border-color: var(--hud);
  color: var(--hud);
}

.choice-pill input {
  accent-color: var(--hud);
}

.closing-bet {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 8px;
}

.closing-bet p {
  margin: 0;
}

.closing-bet h4 {
  color: var(--paper-muted);
}

.bet-dialog {
  max-width: min(32rem, calc(100vw - 32px));
  padding: 20px;
  border: 1px solid var(--hud-dim);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.85rem;
}

.bet-dialog::backdrop {
  background: rgb(0 0 0 / 0.6);
}

.bet-dialog h2 {
  margin: 4px 0 8px;
  font-family: var(--display);
}

.confront-option,
.stance-line {
  margin: 0;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--text);
  font-size: 0.82rem;
}

.choice-pill {
  margin: 0;
}

.confront-option input,
.stance-line input,
.choice-pill input {
  flex: none;
  padding: 0;
  width: auto;
}