/* ─── Reset & Base ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --sidebar-bg:   #1a1d21;
  --sidebar-hover:#222529;
  --sidebar-active:#1164a3;
  --main-bg:      #222529;
  --msg-area-bg:  #222529;
  --input-bg:     #2c2d30;
  --border:       #363636;
  --text-primary: #d1d2d3;
  --text-muted:   #8b8c8e;
  --text-bright:  #ffffff;
  --bot-bubble:   #1a3a5c;
  --bot-border:   #1164a3;
  --accent:       #1d9bd1;
  --green:        #2bac76;
  --yellow:       #e8a317;
  --red:          #e01e5a;
  --font:         -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --radius:       6px;
}

html, body { height: 100%; font-family: var(--font); background: var(--main-bg); color: var(--text-primary); }

/* ─── Layout ────────────────────────────────────────── */
#app { display: flex; height: 100vh; overflow: hidden; }

/* ─── Sidebar ───────────────────────────────────────── */
#sidebar {
  width: 260px; min-width: 200px;
  background: var(--sidebar-bg);
  display: flex; flex-direction: column;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
}

#workspace-header {
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--border);
}
#workspace-name {
  font-size: 16px; font-weight: 700;
  color: var(--text-bright); cursor: pointer;
  display: flex; align-items: center; gap: 6px;
}
#workspace-name .status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--green); display: inline-block;
}
#user-display {
  font-size: 12px; color: var(--text-muted); margin-top: 4px;
}

#sidebar-search {
  margin: 8px 10px;
  background: var(--sidebar-hover); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 6px 10px;
  color: var(--text-primary); font-size: 13px; outline: none;
  width: calc(100% - 20px);
}
#sidebar-search::placeholder { color: var(--text-muted); }

.sidebar-section { margin: 6px 0; }
.sidebar-section-header {
  padding: 4px 10px; font-size: 12px; font-weight: 600;
  color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em;
  cursor: pointer; display: flex; align-items: center; gap: 4px;
  user-select: none;
}
.sidebar-section-header:hover { color: var(--text-primary); }

.channel-item {
  padding: 5px 10px 5px 20px; font-size: 14px;
  color: var(--text-muted); cursor: pointer; border-radius: var(--radius);
  margin: 1px 6px; display: flex; align-items: center; gap: 6px;
  transition: background .12s;
}
.channel-item:hover { background: var(--sidebar-hover); color: var(--text-primary); }
.channel-item.active { background: var(--sidebar-active); color: var(--text-bright); font-weight: 500; }
.channel-item .ch-icon { color: var(--text-muted); font-size: 13px; }
.channel-item.active .ch-icon { color: var(--text-bright); }
.channel-item .unread-badge {
  margin-left: auto; background: var(--red);
  color: #fff; font-size: 10px; font-weight: 700;
  min-width: 16px; height: 16px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center; padding: 0 4px;
}

/* ─── User modal ────────────────────────────────────── */
#user-modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.55); z-index: 100;
  align-items: center; justify-content: center;
}
#user-modal-overlay.show { display: flex; }
#user-modal {
  background: var(--sidebar-bg); border: 1px solid var(--border);
  border-radius: 10px; padding: 28px 32px; width: 340px; text-align: center;
}
#user-modal h2 { font-size: 18px; color: var(--text-bright); margin-bottom: 6px; }
#user-modal p  { font-size: 13px; color: var(--text-muted); margin-bottom: 18px; }
#user-modal input {
  width: 100%; padding: 10px 12px; background: var(--input-bg);
  border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--text-bright); font-size: 14px; outline: none; margin-bottom: 14px;
}
#user-modal input:focus { border-color: var(--accent); }
#user-modal button {
  width: 100%; padding: 10px; background: var(--accent);
  color: #fff; border: none; border-radius: var(--radius);
  font-size: 14px; font-weight: 600; cursor: pointer; transition: opacity .15s;
}
#user-modal button:hover { opacity: .85; }

/* ─── Main area ─────────────────────────────────────── */
#main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

#channel-header {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--main-bg);
  display: flex; align-items: center; gap: 10px;
}
#channel-header .ch-name {
  font-size: 16px; font-weight: 700; color: var(--text-bright);
}
#channel-header .ch-desc {
  font-size: 13px; color: var(--text-muted); margin-left: 8px;
}
#member-count { margin-left: auto; font-size: 12px; color: var(--text-muted); }

/* ─── Messages ──────────────────────────────────────── */
#messages {
  flex: 1; overflow-y: auto; padding: 16px 20px 8px;
  display: flex; flex-direction: column; gap: 2px;
}
#messages::-webkit-scrollbar { width: 5px; }
#messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

.msg-group { display: flex; gap: 10px; padding: 4px 0; }
.msg-group:hover { background: rgba(255,255,255,.03); border-radius: var(--radius); }

.avatar {
  width: 36px; height: 36px; border-radius: var(--radius);
  font-size: 14px; font-weight: 700; display: flex; align-items: center;
  justify-content: center; flex-shrink: 0; margin-top: 2px;
}
.avatar.human  { background: #4a9a6e; color: #fff; }
.avatar.bot    { background: var(--accent); color: #fff; }

.msg-body { flex: 1; min-width: 0; }
.msg-meta { display: flex; align-items: baseline; gap: 8px; margin-bottom: 2px; }
.msg-sender { font-size: 14px; font-weight: 700; color: var(--text-bright); }
.msg-sender.bot { color: var(--accent); }
.msg-time { font-size: 11px; color: var(--text-muted); }

.msg-content {
  font-size: 14px; line-height: 1.55; color: var(--text-primary);
  white-space: pre-wrap; word-break: break-word;
}
.msg-content code {
  background: rgba(0,0,0,.35); padding: 1px 5px;
  border-radius: 3px; font-family: "JetBrains Mono", "Consolas", monospace;
  font-size: 12px;
}
.msg-content pre {
  background: rgba(0,0,0,.45); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 10px 12px; margin-top: 6px;
  overflow-x: auto; font-size: 12px; line-height: 1.5;
  font-family: "JetBrains Mono", "Consolas", monospace;
}

/* Bot bubble */
.bot-bubble {
  background: var(--bot-bubble); border-left: 3px solid var(--bot-border);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 10px 12px; margin-top: 4px;
}
.bot-bubble .msg-content { color: #c9dff0; }

/* Interactive widgets */
.widget-actions { margin-top: 10px; display: flex; gap: 8px; flex-wrap: wrap; }

.btn-action {
  padding: 7px 14px; border-radius: var(--radius);
  font-size: 13px; font-weight: 500; cursor: pointer;
  border: 1px solid transparent; transition: opacity .15s;
}
.btn-action:hover { opacity: .8; }
.btn-primary   { background: var(--accent); color: #fff; }
.btn-approve   { background: var(--green);  color: #fff; }
.btn-reject    { background: var(--red);    color: #fff; }
.btn-secondary { background: transparent; border-color: var(--border); color: var(--text-primary); }

.btn-action.clicked { opacity: .5; pointer-events: none; }
.btn-result {
  font-size: 12px; color: var(--text-muted);
  margin-top: 6px; padding: 4px 0;
}

/* Date divider */
.date-divider {
  display: flex; align-items: center; gap: 10px;
  margin: 14px 0; font-size: 12px; color: var(--text-muted);
}
.date-divider::before, .date-divider::after {
  content: ""; flex: 1; height: 1px; background: var(--border);
}

/* Typing indicator */
#typing-indicator {
  height: 20px; padding: 0 20px; font-size: 12px;
  color: var(--text-muted); font-style: italic;
}

/* ─── Input area ────────────────────────────────────── */
#input-area {
  padding: 8px 20px 16px;
  border-top: 1px solid var(--border);
  background: var(--main-bg);
}
#input-box {
  background: var(--input-bg); border: 1px solid var(--border);
  border-radius: var(--radius); display: flex; align-items: flex-end; gap: 6px;
  padding: 8px 10px; transition: border-color .15s;
}
#input-box:focus-within { border-color: var(--accent); }

#msg-input {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--text-bright); font-size: 14px; resize: none;
  max-height: 120px; line-height: 1.5; font-family: var(--font);
}
#msg-input::placeholder { color: var(--text-muted); }

.input-btn {
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; padding: 4px; border-radius: var(--radius);
  font-size: 18px; line-height: 1; transition: color .12s;
  flex-shrink: 0;
}
.input-btn:hover { color: var(--text-primary); }
#send-btn { color: var(--accent); font-size: 20px; }
#send-btn:hover { color: var(--text-bright); }

#input-hint {
  font-size: 11px; color: var(--text-muted);
  margin-top: 4px; padding: 0 2px;
}

/* ─── Connection status ─────────────────────────────── */
#conn-status {
  position: fixed; bottom: 16px; right: 16px;
  padding: 6px 12px; border-radius: 20px; font-size: 12px; font-weight: 500;
  display: none;
}
#conn-status.show   { display: block; }
#conn-status.online { background: var(--green);  color: #fff; }
#conn-status.offline{ background: var(--red);    color: #fff; }
#conn-status.reconnecting { background: var(--yellow); color: #000; }

/* ─── Scrollbar ─────────────────────────────────────── */
* { scrollbar-width: thin; scrollbar-color: var(--border) transparent; }