/* The story screen: layout, transcript, composer.
 *
 * `BROWSER-UX-SPEC.md` §82-84 and §98. Three rules do most of the work here:
 *
 *   §82  prose gets a readable measure and does not stretch across a wide
 *        monitor, whatever the window is doing;
 *   §83  no card chrome around every message — the story reads as prose, and a
 *        player turn is set apart by indentation and colour rather than a box;
 *   §84  no metadata on screen, so the controls on a turn stay invisible until
 *        the pointer or the keyboard reaches that turn.
 *
 * The transcript scrolls the page rather than an inner element. That keeps the
 * browser's own find-in-page, scroll restoration and keyboard paging working,
 * which an inner scroller quietly breaks.
 */

/* ---------- Layout ---------- */

.play {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.play-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 20px;
  /* Opaque, not glass. The first browser pass had story text reading straight
     through a translucent bar; a header the story shows through is not a
     header. */
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
}
.play-title { display: flex; align-items: baseline; gap: 14px; min-width: 0; flex: 1; }
.play-title h1 {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.play-title .back {
  font-size: 0.78rem;
  color: var(--text-dim);
  white-space: nowrap;
}
.play-title .back:hover { color: var(--accent); }
.play-header-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.panel-tabs { display: flex; gap: 2px; }
.panel-tabs button {
  padding: 5px 11px;
  font-size: 0.76rem;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 5px;
}
.panel-tabs button:hover { color: var(--text); border-color: var(--border); }
.panel-tabs button.active {
  color: var(--accent-bright);
  border-color: var(--border-bright);
  background: var(--bg-input);
}

.play-main { display: flex; flex: 1; align-items: flex-start; min-height: 0; }
.play-story {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  /* Fills the viewport below the header, so the composer sits at the bottom of
     a short story rather than immediately under its last line. */
  min-height: calc(100vh - 52px);
}

/* ---------- Transcript ---------- */

.story {
  /* §82. The measure is the point: prose is read, not scanned, and 66ch is
     about the width a line can be before the eye loses the next one. */
  width: min(66ch, 100%);
  margin: 0 auto;
  /* The bottom padding clears the sticky composer. Enough to scroll the last
     line clear of it, not so much that a short story opens on a void. */
  padding: 36px 24px 40px;
  flex: 1;
  font-family: var(--font-story);
  font-size: 1.14rem;
  line-height: 1.72;
}
.story-empty { color: var(--text-dim); font-style: italic; }

.turn {
  position: relative;
  margin: 0 0 1.35em;
  animation: turn-in 0.35s ease both;
}
@keyframes turn-in { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; } }

.turn-text > *:first-child { margin-top: 0; }
.turn-text > *:last-child { margin-bottom: 0; }
.turn-text p { margin: 0 0 0.75em; }

/* §83. A player turn is the reader's own voice: indented, lighter, in the
   cooler of the two accents. No box, no avatar, no timestamp. */
.turn-player .turn-text {
  padding-left: 1.1em;
  border-left: 2px solid var(--player);
  color: var(--player);
  font-style: italic;
}

.turn-narrator .turn-text { color: var(--text); }

/* The opening beat gets the drop cap, and only that one. */
.turn-opening .turn-text > p:first-of-type::first-letter {
  float: left;
  font-family: var(--font-display);
  font-size: 3.1em;
  line-height: 0.82;
  padding: 0.06em 0.09em 0 0;
  color: var(--accent);
}

.scene-break {
  margin: 1.8em 0;
  text-align: center;
  color: var(--border-bright);
  font-size: 0.8rem;
  letter-spacing: 0.5em;
}

.story .cursor {
  display: inline-block;
  margin-left: 1px;
  color: var(--accent);
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.story .reasoning {
  margin-bottom: 0.5em;
  font-family: var(--font-ui);
  font-size: 0.78rem;
}
.story .reasoning summary {
  cursor: pointer;
  color: var(--text-dim);
  opacity: 0.7;
}
.story .reasoning summary:hover { opacity: 1; }
.story .reasoning .reasoning-text {
  margin-top: 5px;
  padding-left: 10px;
  border-left: 1px solid var(--border);
  color: var(--text-dim);
  white-space: pre-wrap;
}

/* §84. Controls stay out of the way until the turn is reached — but they are
   real buttons in the tab order, so `:focus-within` has to reveal them or a
   keyboard reader would be operating something they cannot see. */
.turn-tools {
  display: flex;
  gap: 4px;
  margin-top: 6px;
  font-family: var(--font-ui);
  opacity: 0;
  transition: opacity 0.15s;
}
.turn:hover .turn-tools,
.turn-tools:focus-within { opacity: 1; }
.turn-tools button {
  padding: 2px 8px;
  font-size: 0.71rem;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 4px;
}
.turn-tools button:hover { color: var(--text); border-color: var(--border-bright); }

.turn-edit { margin: 0 0 1.35em; }
.turn-edit textarea {
  width: 100%;
  font-family: var(--font-story);
  font-size: 1.1rem;
  line-height: 1.6;
}
.edit-buttons { display: flex; gap: 8px; margin-top: 8px; }
.edit-hint {
  margin: 8px 0 0;
  font-family: var(--font-ui);
  font-size: 0.76rem;
  color: var(--text-dim);
}

.story-earlier { margin-bottom: 1.6em; text-align: center; font-family: var(--font-ui); }
.story-earlier button {
  padding: 4px 14px;
  font-size: 0.76rem;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 14px;
}
.story-earlier button:hover { color: var(--accent-bright); border-color: var(--border-bright); }

.thinking {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-dim);
}
.thinking i {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.2s ease-in-out infinite;
}
.thinking i:nth-child(2) { animation-delay: 0.15s; }
.thinking i:nth-child(3) { animation-delay: 0.3s; }
@keyframes pulse { 0%, 100% { opacity: 0.25; } 50% { opacity: 1; } }

/* ---------- Markdown in story prose ---------- */

.md-heading { font-family: var(--font-display); margin: 1.1em 0 0.4em; }
.md-list { margin: 0 0 0.75em; padding-left: 1.4em; }
.md-quote {
  margin: 0 0 0.75em;
  padding-left: 0.9em;
  border-left: 2px solid var(--border-bright);
  color: var(--text-dim);
}
.md-code {
  margin: 0 0 0.75em;
  padding: 10px 12px;
  overflow-x: auto;
  font-size: 0.85rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 5px;
}
.turn-text code {
  padding: 1px 4px;
  font-size: 0.88em;
  background: var(--bg-input);
  border-radius: 3px;
}
.md-link { text-decoration: underline dotted; text-underline-offset: 3px; }
/* §75: the address is shown, and nothing is fetched. */
.md-image-blocked,
.md-link-blocked {
  display: inline-block;
  padding: 1px 7px;
  font-family: var(--font-ui);
  font-size: 0.76rem;
  color: var(--text-dim);
  background: var(--bg-input);
  border: 1px dashed var(--border-bright);
  border-radius: 4px;
}

/* ---------- Composer ---------- */

.composer {
  position: sticky;
  bottom: 0;
  z-index: 15;
  width: min(66ch, 100%);
  margin: 0 auto;
  padding: 10px 24px calc(16px + env(keyboard-inset-height, 0px));
  background: linear-gradient(to top, var(--bg) 62%, transparent);
}

.story-controls { display: flex; gap: 6px; margin-bottom: 8px; flex-wrap: wrap; align-items: center; }

/* M11: where the reader is in the story (post-M8 finding B). Pushed to the end
   of the control row so it reads as a status rather than another button, and
   quiet enough that it is not competing with the prose. */
.story-position {
  margin: 0 0 0 auto;
  font-size: 0.78rem;
  color: var(--text-dim);
  white-space: nowrap;
}
.story-position .moment { color: var(--text); }
.story-position .ahead { color: var(--accent); }
.story-controls button {
  padding: 5px 13px;
  font-size: 0.78rem;
  color: var(--text-dim);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 5px;
}
.story-controls button:hover:not(:disabled) {
  color: var(--accent-bright);
  border-color: var(--border-bright);
}
.story-controls button:disabled { opacity: 0.35; cursor: default; }

.input-bar {
  border: 1px solid var(--border-bright);
  border-radius: 9px;
  background: var(--bg-panel);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.input-bar:focus-within { border-color: var(--accent-dim); box-shadow: 0 0 0 3px var(--accent-glow); }
/* §13: while direction is on, the box must not look like the story box. */
.input-bar.directing { border-color: var(--accent); background: rgba(212, 169, 78, 0.06); }

.input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px 0;
  font-family: var(--font-ui);
  font-size: 0.74rem;
}
.direction-toggle { display: flex; align-items: center; gap: 6px; color: var(--text-dim); cursor: pointer; }
.direction-toggle input { margin: 0; }
.input-bar.directing .direction-toggle { color: var(--accent-bright); }
.direction-hint { color: var(--text-dim); font-style: italic; }

.input-main { display: flex; align-items: flex-end; gap: 8px; padding: 4px 10px 10px; }
.input-main textarea {
  flex: 1;
  /* forms.css gives every textarea a 70px floor, which is right for a form
     field and wrong for a composer that starts at one line and grows with what
     is typed. */
  min-height: 0;
  max-height: 9em;
  padding: 6px 4px;
  font-family: var(--font-story);
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--text);
  background: transparent;
  border: none;
  resize: none;
}
.input-main textarea:focus { outline: none; }

/* Reserved for a later version. Disabled, and visibly so. */
.dictate-reserved {
  padding: 5px 9px;
  font-size: 0.9rem;
  color: var(--text-dim);
  background: transparent;
  border: 1px dashed var(--border);
  border-radius: 6px;
  opacity: 0.4;
  cursor: not-allowed;
}

/* ---------- Failure ---------- */

.failure {
  width: min(66ch, 100%);
  margin: 0 auto 12px;
  padding: 12px 16px;
  font-family: var(--font-ui);
  font-size: 0.84rem;
  background: var(--bg-panel);
  border: 1px solid var(--danger);
  border-left-width: 3px;
  border-radius: 7px;
}
.failure-knowledge, .failure-state { border-color: var(--accent-dim); }
.failure-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.failure-head strong { flex: 1; }
.failure-icon { color: var(--danger); }
.failure-close {
  padding: 0 5px;
  color: var(--text-dim);
  background: transparent;
  border: none;
}
.failure-hint, .failure-kept { margin: 0 0 6px; color: var(--text-dim); line-height: 1.55; }
.failure-kept { font-style: italic; }
.failure details { margin-bottom: 6px; }
.failure summary { cursor: pointer; color: var(--text-dim); font-size: 0.78rem; }
.failure pre, .failure blockquote {
  margin: 6px 0 0;
  padding: 8px 10px;
  max-height: 12em;
  overflow: auto;
  font-size: 0.76rem;
  white-space: pre-wrap;
  background: var(--bg-input);
  border-radius: 5px;
}
.failure-actions { display: flex; gap: 8px; margin-top: 8px; }

/* The model-setup guidance, when it appears above the composer. Same measure as
   the prose, so it reads as part of the column rather than a banner across it. */
.story-blocked {
  width: min(66ch, 100%);
  margin: 0 auto 12px;
  padding: 0 24px;
}