/* ==========================================================================
   THE MARGINALIA — Reading-log chat dock
   Floating chat panel. Editorial voice, terminal-ish input, plain-text feel.
   ========================================================================== */

.chat-dock {
  position: fixed;
  right: var(--space-lg);
  bottom: var(--space-lg);
  width: min(420px, calc(100vw - 2 * var(--space-lg)));
  z-index: 50;
  font-family: var(--font-body);
  transition: transform 0.35s cubic-bezier(.2,.8,.2,1);
  pointer-events: none;
}

.chat-dock > * { pointer-events: auto; }

/* --- Trigger button (collapsed state) --- */
.chat-dock__trigger {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: var(--text);
  color: var(--bg);
  border: none;
  border-radius: 2px;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9375rem;
  font-variation-settings: 'opsz' 14;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(28, 22, 15, 0.22);
  transition: all var(--transition);
}

.chat-dock__trigger:hover {
  background: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(184, 76, 42, 0.35);
}

.chat-dock__trigger-icon {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 2px rgba(184, 76, 42, 0.25);
  animation: chat-pulse 2s ease-in-out infinite;
}

.chat-dock__trigger:hover .chat-dock__trigger-icon {
  background: var(--bg);
  box-shadow: 0 0 0 2px rgba(250, 246, 240, 0.3);
}

@keyframes chat-pulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

.chat-dock--open .chat-dock__trigger { display: none; }

/* --- Panel (expanded state) --- */
.chat-dock__panel {
  display: none;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--card-border);
  border-radius: 2px;
  box-shadow: 0 16px 48px rgba(28, 22, 15, 0.22);
  overflow: hidden;
  max-height: min(600px, calc(100vh - 2 * var(--space-lg)));
  animation: chat-rise 0.35s cubic-bezier(.2,.8,.2,1);
}

.chat-dock--open .chat-dock__panel { display: flex; }

@keyframes chat-rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Header --- */
.chat-dock__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--bg-inset);
  background: var(--bg-warm);
}

.chat-dock__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-style: italic;
  font-variation-settings: 'opsz' 24;
  color: var(--text);
  line-height: 1;
}

.chat-dock__subtitle {
  font-family: var(--font-mono);
  font-size: 0.6125rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: block;
  margin-top: 2px;
}

.chat-dock__close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1;
  padding: 4px 8px;
  transition: color var(--transition);
}
.chat-dock__close:hover { color: var(--text); }

/* --- Log area --- */
.chat-dock__log {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  background:
    linear-gradient(var(--bg-surface), var(--bg-surface)) padding-box,
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 27px,
      rgba(28, 22, 15, 0.035) 27px,
      rgba(28, 22, 15, 0.035) 28px
    );
  scrollbar-width: thin;
  scrollbar-color: var(--text-muted) transparent;
}

.chat-dock__log::-webkit-scrollbar { width: 6px; }
.chat-dock__log::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 3px;
}

/* --- Messages --- */
.chat-msg {
  display: flex;
  gap: 10px;
  animation: chat-msg-in 0.25s cubic-bezier(.2,.8,.2,1);
}

@keyframes chat-msg-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-msg__marker {
  flex-shrink: 0;
  width: 18px;
  padding-top: 2px;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9375rem;
  line-height: 1;
  color: var(--accent);
  font-variation-settings: 'opsz' 14;
}

.chat-msg--user .chat-msg__marker { color: var(--text); }

.chat-msg__body {
  flex: 1;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--text);
  min-width: 0;
}

.chat-msg--user .chat-msg__body {
  font-family: var(--font-body);
  color: var(--text);
}

.chat-msg--bot .chat-msg__body {
  font-family: var(--font-display);
  font-variation-settings: 'opsz' 14;
  color: var(--text);
}

.chat-msg--bot .chat-msg__body strong {
  font-weight: 500;
  color: var(--accent);
}

.chat-msg--bot.chat-msg--muted .chat-msg__body {
  color: var(--text-secondary);
  font-style: italic;
  font-size: 0.875rem;
}

.chat-msg--thinking .chat-msg__body {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.chat-msg--thinking .chat-msg__body::after {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
  margin-left: 4px;
  animation: chat-thinking 1.2s infinite;
}

@keyframes chat-thinking {
  0%, 60%, 100% { opacity: 0.2; }
  30% { opacity: 1; }
}

/* --- Proposal / preview-then-confirm block --- */
.chat-proposal {
  margin-top: 6px;
  background: var(--bg-warm);
  border: 1px solid var(--accent-medium);
  border-left: 3px solid var(--accent);
  border-radius: 0 2px 2px 0;
  padding: var(--space-md);
  position: relative;
}

.chat-proposal__label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.chat-proposal__body {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  margin-bottom: var(--space-md);
}

.chat-proposal__cover {
  flex-shrink: 0;
  width: 56px;
  height: 84px;
  object-fit: cover;
  border-radius: 2px;
  box-shadow: 2px 4px 8px rgba(28, 22, 15, 0.18);
}

.chat-proposal__cover--placeholder {
  background: var(--bg-inset);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 1.5rem;
}

.chat-proposal__meta {
  flex: 1;
  min-width: 0;
}

.chat-proposal__title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-variation-settings: 'opsz' 24;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 2px;
}

.chat-proposal__authors {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.chat-proposal__facts {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 4px;
}

.chat-proposal__rationale {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  font-style: italic;
  margin-top: 6px;
  line-height: 1.5;
}

.chat-proposal__actions {
  display: flex;
  gap: var(--space-sm);
}

.chat-proposal__btn {
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}

.chat-proposal__btn--confirm {
  background: var(--accent);
  color: var(--bg-surface);
  border-color: var(--accent);
}

.chat-proposal__btn--confirm:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.chat-proposal__btn--deny {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--text-muted);
}

.chat-proposal__btn--deny:hover {
  color: var(--text);
  border-color: var(--text);
}

.chat-proposal__btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* --- Disambiguation block --- */
.chat-disambig {
  margin-top: 6px;
  padding: var(--space-md);
  background: var(--bg-warm);
  border-left: 3px solid var(--accent);
  border-radius: 0 2px 2px 0;
}

.chat-disambig__question {
  font-family: var(--font-display);
  font-style: italic;
  font-variation-settings: 'opsz' 14;
  color: var(--text);
  margin-bottom: var(--space-sm);
}

.chat-disambig__options {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: disambig;
}

.chat-disambig__option {
  counter-increment: disambig;
  padding: 8px 10px 8px 34px;
  cursor: pointer;
  position: relative;
  font-size: 0.875rem;
  color: var(--text);
  border-radius: 2px;
  transition: background var(--transition);
  line-height: 1.4;
}

.chat-disambig__option::before {
  content: counter(disambig, decimal-leading-zero);
  position: absolute;
  left: 8px;
  top: 8px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--accent);
  font-weight: 600;
}

.chat-disambig__option:hover {
  background: var(--bg-surface);
}

.chat-disambig__option-meta {
  display: block;
  margin-top: 2px;
  font-family: var(--font-body);
  font-size: 0.6875rem;
  color: var(--text-muted);
  font-style: italic;
}

.chat-disambig__hint {
  margin-top: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.6125rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.chat-disambig__hint kbd {
  display: inline-block;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  background: var(--bg-surface);
  border: 1px solid var(--bg-inset);
  border-radius: 2px;
  color: var(--text-secondary);
}

/* --- Structured result cards (view/stats/social) --- */
.chat-card {
  background: var(--bg-warm);
  border: 1px solid var(--bg-inset);
  border-radius: 2px;
  padding: var(--space-md);
  font-family: var(--font-body);
}

.chat-card__head {
  border-bottom: 1px solid var(--bg-inset);
  margin-bottom: var(--space-sm);
  padding-bottom: 6px;
}

.chat-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  font-variation-settings: 'opsz' 24;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.chat-card__subtitle {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: 2px;
}

.chat-card__section-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: var(--space-sm) 0 4px;
}

.chat-card__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--space-sm);
}

.chat-card__chip {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  padding: 3px 8px;
  background: var(--bg-surface);
  border: 1px solid var(--bg-inset);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.chat-card__chip strong {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-variation-settings: 'opsz' 24;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.02em;
}
.chat-card__chip--reading strong { color: var(--reading); }
.chat-card__chip--backlog strong { color: var(--want-to-read); }
.chat-card__chip--dnf strong { color: var(--dnf); }

.chat-card__book-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chat-card__book {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px;
  background: var(--bg-surface);
  border-radius: 2px;
  cursor: pointer;
  transition: background var(--transition);
  min-width: 0;
}
.chat-card__book:hover {
  background: var(--bg-hover);
}

.chat-card__book-cover {
  flex-shrink: 0;
  width: 32px;
  height: 48px;
  object-fit: cover;
  border-radius: 1px;
  box-shadow: 1px 2px 4px rgba(28, 22, 15, 0.15);
}
.chat-card__book-cover--lg {
  width: 80px;
  height: 120px;
}
.chat-card__book-cover--placeholder {
  background: var(--bg-inset);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.chat-card__book-meta {
  flex: 1;
  min-width: 0;
}

.chat-card__book-title {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-variation-settings: 'opsz' 14;
  color: var(--text);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-card__book-authors {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  color: var(--text-muted);
  font-style: italic;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-card__series {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 2px;
}

.chat-card__rating {
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  font-variation-settings: 'opsz' 24;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.chat-card__stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.chat-card__stat {
  padding: var(--space-sm);
  background: var(--bg-surface);
  border-radius: 2px;
  text-align: center;
}

.chat-card__stat-label {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.chat-card__stat-value {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  font-variation-settings: 'opsz' 48;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
}

.chat-card__kv-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chat-card__kv-list > li,
.chat-card__row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  justify-content: space-between;
  padding: 4px 6px;
  border-bottom: 1px dotted var(--bg-inset);
  font-size: 0.8125rem;
  color: var(--text);
  flex-wrap: wrap;
}
.chat-card__kv-list > li:last-child,
.chat-card__row:last-child { border-bottom: none; }

.chat-card__row-label {
  font-family: var(--font-display);
  font-variation-settings: 'opsz' 14;
  font-weight: 500;
  color: var(--text);
  flex-shrink: 0;
}

.chat-card__row-value {
  flex: 1;
  text-align: right;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  cursor: default;
  word-break: break-word;
}

.chat-card__row-value[data-chat-book],
.chat-card__row strong[data-chat-book] {
  cursor: pointer;
  color: var(--text);
}
.chat-card__row-value[data-chat-book]:hover,
.chat-card__row strong[data-chat-book]:hover {
  color: var(--accent);
}

.chat-card__count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
}

.chat-card__detail {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.chat-card__meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 6px 0;
}

.chat-card__notes {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding-left: var(--space-sm);
  border-left: 2px solid var(--accent);
  margin: var(--space-sm) 0 0;
}

.chat-card__paragraph {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: var(--space-sm);
}

.chat-card__line {
  font-size: 0.8125rem;
  padding: 2px 0;
  color: var(--text);
  border-bottom: 1px dotted var(--bg-inset);
}
.chat-card__line:last-child { border-bottom: none; }

.chat-card__rec-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.chat-card__rec {
  padding: 8px;
  background: var(--bg-surface);
  border-left: 2px solid var(--accent);
  border-radius: 0 2px 2px 0;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: background var(--transition);
}
.chat-card__rec:hover { background: var(--bg-hover); }
.chat-card__rec-reason {
  font-size: 0.6875rem;
  color: var(--text-muted);
  font-style: italic;
}

/* --- Input bar --- */
.chat-dock__input-wrap {
  border-top: 1px solid var(--bg-inset);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-surface);
  display: flex;
  gap: var(--space-sm);
  align-items: flex-end;
}

.chat-dock__input {
  flex: 1;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.45;
  resize: none;
  background: transparent;
  border: none;
  color: var(--text);
  padding: 6px 0;
  max-height: 140px;
  min-height: 22px;
  outline: none;
}

.chat-dock__input::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

.chat-dock__send {
  flex-shrink: 0;
  background: var(--text);
  color: var(--bg);
  border: none;
  border-radius: 2px;
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all var(--transition);
}
.chat-dock__send:hover {
  background: var(--accent);
}
.chat-dock__send:disabled {
  background: var(--text-muted);
  cursor: not-allowed;
}

.chat-dock__hint {
  padding: 6px var(--space-lg) 10px;
  font-family: var(--font-mono);
  font-size: 0.6125rem;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  background: var(--bg-surface);
  border-top: 1px dashed var(--bg-inset);
}

/* --- Dark mode adjustments --- */
[data-theme="dark"] .chat-dock__panel {
  background: var(--bg-surface);
  border-color: rgba(255, 255, 255, 0.06);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
}
[data-theme="dark"] .chat-dock__log {
  background:
    linear-gradient(var(--bg-surface), var(--bg-surface)) padding-box,
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 27px,
      rgba(255, 255, 255, 0.02) 27px,
      rgba(255, 255, 255, 0.02) 28px
    );
}

/* --- Responsive --- */
@media (max-width: 600px) {
  .chat-dock {
    right: var(--space-sm);
    bottom: var(--space-sm);
    width: calc(100vw - 2 * var(--space-sm));
  }
  .chat-dock__panel {
    max-height: 72vh;
  }
}