/* @gobbonet-split css/04-chat.css
   Moved verbatim from style.css lines 448-994.
   chat header, messages, welcome, input
   Load order is a contract -- see REFACTOR-PLAN.md before reordering.
   @end-split-header */
/* ========================================================
   CHAT HEADER
======================================================== */
#chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: radial-gradient(circle at center, var(--surface) 0%, var(--black) 100%);
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  font-size: 13px;
}

.toggle-sidebar {
  background: rgba(0, 243, 255, 0.05);
  border: 1px solid var(--cyan-dim);
  color: var(--cyan-bright);
  font-size: 16px;
  cursor: pointer;
  padding: 4px 10px;
  border-radius: var(--radius);
  font-family: var(--font);
  transition: all var(--transition);
}
.toggle-sidebar:hover { background: var(--cyan-bright); color: var(--black); box-shadow: var(--glow-cyan); }

.home-btn {
  background: rgba(0, 243, 255, 0.05);
  border: 1px solid var(--cyan-dim);
  color: var(--cyan-dim);
  font-size: 18px;
  cursor: pointer;
  padding: 4px 10px;
  border-radius: var(--radius);
  font-family: var(--font);
  transition: all var(--transition);
  line-height: 1;
}
.home-btn:hover { background: var(--cyan-bright); color: var(--black); box-shadow: var(--glow-cyan); }
/* Hide home btn when already on landing page */
.home-btn.hidden { display: none; }

.chat-header .thread-title {
  flex: 1;
  font-weight: 700;
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--white);
  text-shadow: 0 0 5px rgba(255,255,255,0.4);
}
.chat-header .thread-title::before {
  content: "sysadmin@gobbonet:~# ";
  color: var(--cyan-dim);
  font-weight: 400;
  text-shadow: none;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--red-neon);
  box-shadow: var(--glow-red);
  transition: background 0.5s, box-shadow 0.5s;
}
.status-dot.connected { background: var(--green-neon); box-shadow: 0 0 10px rgba(0, 255, 115, 0.6); }

/* Changed amber to magenta for status */
.status-label {
  font-size: 12px;
  color: var(--magenta);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-shadow: var(--glow-text-m);
}

.privacy-badge {
  font-size: 14px;
  margin-left: 4px;
  cursor: help;
  filter: drop-shadow(0 0 4px rgba(0, 255, 115, 0.6));
  animation: privacy-pulse 3s ease-in-out infinite;
}

@keyframes privacy-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ========================================================
   MESSAGES
======================================================== */
.messages {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  /* No global `scroll-behavior: smooth` here on purpose. The streaming
     auto-scroll re-pins to the bottom every ~80ms; with smooth scrolling
     each re-pin became an animated glide that never caught the still-growing
     content, so the view trailed a few messages behind the newest tokens
     (and the in-flight animation fought a tap trying to stop following).
     Smoothness is now opt-in per call — only the follow-to-bottom button,
     and only once a reply has finished streaming. See scrollToBottom(). */
}

.message {
  max-width: 85%;
  padding: 16px 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  border-left: 4px solid;
  line-height: 1.7;
  font-size: 15px;
  position: relative;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  backdrop-filter: blur(2px);
}

.message-user { 
  align-self: flex-end; 
  background: var(--user-bg); 
  border-color: rgba(0, 243, 255, 0.1);
  border-left-color: var(--user-border); 
}
.message-assistant { 
  align-self: flex-start; 
  background: var(--ai-bg); 
  border-color: rgba(217, 0, 255, 0.1);
  border-left-color: var(--ai-border); 
  color: var(--white); 
}

/* Changed System Inject to Magenta */
.message-system-inject {
  align-self: center;
  background: rgba(217, 0, 255, 0.1);
  border: 1px solid var(--magenta-dim);
  border-left-color: var(--magenta);
  font-size: 12px;
  max-width: 60%;
  color: var(--magenta);
  text-align: center;
  padding: 8px 16px;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-radius: 20px;
  text-shadow: 0 0 5px rgba(217, 0, 255, 0.3);
}

.msg-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; border-bottom: 1px solid rgba(255,255,255,0.05); padding-bottom: 8px; }

/* Response timer badge — how long this reply took to generate. Sits at the
   right edge of the message header; ticks live (green) while streaming,
   settles to a dim permanent readout once the turn completes. */
.gen-time {
  margin-left: auto;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: rgba(224, 248, 255, 0.35);
  white-space: nowrap;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
  cursor: default;
}
.gen-time-live {
  color: var(--green-neon);
  text-shadow: 0 0 6px rgba(0, 255, 115, 0.35);
}
/* Smart-limit marker — this reply was trimmed at the token cap. Spacing
   comes from the header's flex gap; it rides just right of the timer. */
.gen-cap-badge {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--magenta);
  opacity: 0.75;
  white-space: nowrap;
  flex-shrink: 0;
  cursor: default;
}
.msg-avatar {
  width: calc(50px * var(--avatar-scale, 1));
  height: calc(50px * var(--avatar-scale, 1));
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: calc(20px * var(--avatar-scale, 1));
  font-weight: 800;
  flex-shrink: 0;
  border: 2px solid var(--border);
  background: var(--black);
  overflow: hidden;
  color: var(--cyan-mid);
  text-transform: uppercase;
  box-shadow: inset 0 0 10px rgba(0,0,0,0.8);
}
.message-user .msg-avatar { border-color: var(--cyan-dim); color: var(--cyan-bright); box-shadow: inset 0 0 12px rgba(0,0,0,0.85), 0 0 9px rgba(0,243,255,0.22); }
.message-assistant .msg-avatar { border-color: var(--magenta-dim); color: var(--magenta); box-shadow: inset 0 0 12px rgba(0,0,0,0.85), 0 0 9px rgba(217,0,255,0.22); }
.msg-avatar img { width: 100%; height: 100%; object-fit: cover; display: block; filter: contrast(1.2); }

.message-role {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0;
}
.message-user .message-role { color: var(--cyan-bright); text-shadow: var(--glow-text-c); }
.message-user .message-role::before { content: "USR // "; color: var(--cyan-dim); text-shadow: none; }
.message-assistant .message-role { color: var(--magenta); text-shadow: var(--glow-text-m); }
.message-assistant .message-role::before { content: "SYS // "; color: var(--magenta-dim); text-shadow: none; }

.message-content p { margin-bottom: 10px; }
.message-content p:last-child { margin-bottom: 0; }
.message-content ul, .message-content ol { margin: 8px 0 8px 24px; }
.message-content li { margin-bottom: 4px; }
.message-content strong { color: var(--cyan-bright); font-weight: 700; text-shadow: 0 0 2px rgba(0,243,255,0.3); }
.message-assistant .message-content strong { color: var(--white); text-shadow: 0 0 2px rgba(255,255,255,0.3); }
.message-content em { font-style: italic; color: rgba(255,255,255,0.7); }
.message-content .dialog-text { font-weight: 700; }
.message-content a { color: var(--magenta); text-decoration: none; border-bottom: 1px dotted var(--magenta); transition: all 0.2s; }
.message-content a:hover { color: var(--white); border-bottom-style: solid; text-shadow: var(--glow-text-m); }

.message-content code {
  font-family: var(--font);
  background: rgba(0, 0, 0, 0.5);
  color: var(--cyan-bright);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
  border: 1px solid rgba(0, 243, 255, 0.2);
}
.message-content pre {
  background: var(--black);
  border: 1px solid var(--border);
  border-left: 2px solid var(--magenta);
  border-radius: var(--radius);
  padding: 16px;
  overflow-x: auto;
  margin: 12px 0;
  box-shadow: inset 0 0 15px rgba(0,0,0,0.8);
}
.message-content pre code { background: none; padding: 0; font-size: 14px; color: var(--cyan-mid); border: none; }

.message-actions {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 6px;
  opacity: 0;
  transition: opacity var(--transition);
}
.message:hover .message-actions { opacity: 1; }

.msg-action-btn {
  background: rgba(0,0,0,0.6);
  border: 1px solid var(--cyan-dim);
  color: var(--cyan-mid);
  font-size: 11px;
  padding: 4px 8px;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font);
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: 1px;
  backdrop-filter: blur(4px);
}
.msg-action-btn:hover { background: var(--cyan-bright); color: var(--black); box-shadow: var(--glow-cyan); }
.msg-action-btn.btn-reroll { border-color: var(--magenta); color: var(--magenta); }
.msg-action-btn.btn-reroll:hover { background: var(--magenta); color: var(--white); box-shadow: var(--glow-magenta); }
.msg-action-btn.btn-delete { border-color: var(--red-neon); color: var(--red-neon); }
.msg-action-btn.btn-delete:hover { background: var(--red-neon); color: var(--white); box-shadow: var(--glow-red); }

/* ── Reroll-variant navigator (inline, next to message actions) ──
   Shown on any message with >1 stored variant — user messages (edit
   history) AND assistant messages (reroll history). Both render via
   the same .variant-nav markup so they look identical; only the
   tooltip copy differs. Visually distinct from .branch-nav-btn
   (magenta, in the thread header) — variants are cyan so they read
   as a different axis of navigation: branches jump between threads,
   variants flip between regenerations or edits within one message.

   Designed as a single segmented control rather than three loose
   buttons: the wrapper carries the border + background, inner
   buttons are transparent, the centre label provides dividers via
   border-left/right. align-items: stretch lets the wrapper inherit
   the natural height of its row-mates (.msg-action-btn) so it
   never reads as shorter or taller than the buttons beside it. */
.variant-nav {
  display: inline-flex;
  align-items: stretch;          /* children fill the wrapper top-to-bottom; dividers reach the edges */
  gap: 0;                         /* dividers come from label borders, not from flex gap */
  margin: 0 2px;
  vertical-align: middle;
  border: 1px solid var(--cyan-dim, rgba(0,240,255,0.4));
  border-radius: var(--radius);
  background: rgba(0, 240, 255, 0.05);
  overflow: hidden;               /* clip inner button corners to the wrapper's rounded outline */
}
.variant-nav-btn {
  background: transparent;        /* wrapper supplies the background */
  border: none;                   /* wrapper supplies the border; label supplies dividers */
  border-radius: 0;
  color: var(--cyan-bright);
  font-family: var(--font);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  padding: 0 9px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.variant-nav-btn:hover:not(:disabled) {
  background: var(--cyan-bright);
  color: var(--black);
  box-shadow: var(--glow-cyan);
}
.variant-nav-btn:disabled {
  opacity: 0.28;
  cursor: default;
}
.variant-nav-label {
  font-size: 11px;
  color: var(--cyan-bright);
  font-weight: 700;
  letter-spacing: 0.4px;
  padding: 0 7px;
  text-shadow: 0 0 4px rgba(0,240,255,0.35);
  white-space: nowrap;
  min-width: 28px;
  text-align: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-left: 1px solid var(--cyan-dim, rgba(0,240,255,0.3));
  border-right: 1px solid var(--cyan-dim, rgba(0,240,255,0.3));
}

/* Changed amber reference for btn-edit to cyan/white */
.msg-action-btn.btn-edit { border-color: var(--white); color: var(--white); }
.msg-action-btn.btn-edit:hover { background: var(--white); color: var(--black); box-shadow: 0 0 10px rgba(255,255,255,0.5); }

/* Edit mode */
.edit-textarea {
  width: 100%;
  background: var(--black);
  border: 1px solid var(--magenta);
  border-radius: var(--radius);
  color: var(--cyan-bright);
  font-family: var(--font);
  font-size: 15px;
  padding: 12px;
  resize: vertical;
  min-height: 80px;
  line-height: 1.6;
  box-shadow: inset 0 0 10px rgba(217, 0, 255, 0.1);
}
.edit-textarea:focus { outline: none; border-color: var(--cyan-bright); box-shadow: var(--glow-cyan); }
.edit-actions { display: flex; gap: 8px; margin-top: 10px; justify-content: flex-end; }

/* Search toggle */
.search-toggle {
  background: rgba(0, 243, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--cyan-dim);
  font-size: 16px;
  padding: 8px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  min-height: 48px;
  font-family: var(--font);
}
.search-toggle:hover { border-color: var(--cyan-bright); color: var(--cyan-bright); box-shadow: var(--glow-cyan); }
.search-toggle.active { border-color: var(--cyan-bright); color: var(--black); background: var(--cyan-bright); box-shadow: var(--glow-cyan); }

/* Typing indicator */
.typing-indicator { display: inline-flex; gap: 6px; padding: 4px 8px; background: rgba(0,0,0,0.3); border-radius: 12px; margin-left: 8px; }
.typing-indicator span {
  width: 6px; height: 6px;
  background: var(--magenta);
  border-radius: 50%;
  animation: blink-cursor 1.2s infinite ease-in-out;
  box-shadow: var(--glow-magenta);
}
.typing-indicator span:nth-child(1) { animation-delay: 0s; }
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@keyframes blink-cursor { 0%, 100% { transform: scale(0.5); opacity: 0.5; } 50% { transform: scale(1.2); opacity: 1; } }

/* ========================================================
   WELCOME / MOTD
======================================================== */
.welcome {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px;
  gap: 16px;
}
.welcome h2 {
  font-size: 24px;
  color: var(--white);
  letter-spacing: 6px;
  text-transform: uppercase;
  text-shadow: var(--glow-text-c);
  animation: crt-flicker 3s infinite alternate;
}
.welcome h2::before { content: ">< "; color: var(--cyan-bright); }
.welcome h2::after { content: " _"; color: var(--magenta); animation: blink-cursor 1s infinite step-end; }
.welcome p { color: var(--cyan-mid); font-size: 15px; max-width: 500px; line-height: 1.8; background: rgba(0,0,0,0.4); padding: 10px 20px; border-radius: var(--radius); border: 1px dashed var(--border); }

/* ========================================================
   INPUT / STDIN
======================================================== */
.input-area {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
  display: flex;
  gap: 12px;
  align-items: flex-end;
  position: relative;
  z-index: 5;
}

#msg-input {
  flex: 1;
  background: var(--black);
  border: 1px solid var(--cyan-dim);
  border-radius: var(--radius);
  color: var(--cyan-bright);
  font-family: var(--font);
  font-size: 15px;
  padding: 12px 16px;
  resize: none;
  min-height: 48px;
  max-height: 250px;
  line-height: 1.6;
  transition: all var(--transition);
  box-shadow: inset 0 0 10px rgba(0,0,0,0.8);
}
#msg-input:focus { outline: none; border-color: var(--cyan-bright); box-shadow: var(--glow-cyan), inset 0 0 10px rgba(0,243,255,0.1); }
#msg-input::placeholder { color: rgba(0, 243, 255, 0.3); }

#send-btn { padding: 12px 24px; min-height: 48px; font-size: 14px; }
#stop-btn { padding: 12px 20px; min-height: 48px; border-color: var(--red-neon); color: var(--red-neon); }
#stop-btn:hover { background: var(--red-neon); color: var(--white); box-shadow: var(--glow-red); }

.context-info {
  padding: 6px 20px;
  font-size: 11px;
  color: var(--cyan-dim);
  background: var(--black);
  font-family: var(--font);
  letter-spacing: 1px;
  text-align: right;
  border-top: 1px solid var(--border);
}

/* ── Auto-continue chain indicator ─────────────────────────────
   Shown above the input area while {{auto_continue_N}} chain is
   active. Magenta accent (same family as branch nav) so it reads
   as "the system is doing something automatic" rather than a
   regular status line. The pulse dot makes it impossible to miss
   that something is queued. */
.auto-continue-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px;
  font-size: 11px;
  font-family: var(--font);
  letter-spacing: 1.5px;
  font-weight: 700;
  color: var(--magenta);
  background: linear-gradient(90deg, rgba(217,0,255,0.10), rgba(217,0,255,0.04));
  border-top: 1px solid var(--magenta-dim, rgba(217,0,255,0.4));
  border-bottom: 1px solid rgba(217,0,255,0.15);
  text-shadow: 0 0 4px rgba(217,0,255,0.45);
}
.auto-continue-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--magenta);
  box-shadow: 0 0 8px rgba(217,0,255,0.9), 0 0 14px rgba(217,0,255,0.5);
  flex-shrink: 0;
  animation: autoContinuePulse 1.4s ease-in-out infinite;
}
@keyframes autoContinuePulse {
  0%, 100% { opacity: 1;   transform: scale(1); }
  50%      { opacity: 0.3; transform: scale(0.75); }
}
.auto-continue-text {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.auto-continue-cancel {
  background: transparent;
  border: 1px solid var(--magenta);
  color: var(--magenta);
  font-family: var(--font);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.2px;
  padding: 3px 10px;
  border-radius: 3px;
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
}
.auto-continue-cancel:hover {
  background: var(--magenta);
  color: var(--white);
  box-shadow: var(--glow-magenta);
}