/* ═══════════════════════════════════════════════════════════════
   BTB DESIGN SYSTEM — Chat Widget, Timeline, Calendar Btn, TCPA
   Better Than Boxes · betterthanboxes.co
   ═══════════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────
   TIMELINE
───────────────────────────────────────── */

.btb-timeline {
  display: flex;
  flex-direction: column;
}

.btb-timeline-item {
  display: flex;
  gap: 16px;
  position: relative;
  padding-bottom: 24px;
}

.btb-timeline-track {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.btb-timeline-dot {
  width: var(--btb-timeline-dot-size);
  height: var(--btb-timeline-dot-size);
  background: var(--btb-timeline-dot-todo);
  flex-shrink: 0;
}

.btb-timeline-dot.done {
  background: var(--btb-timeline-dot-done);
}

.btb-timeline-line {
  width: 1px;
  flex: 1;
  background: var(--btb-timeline-line);
  margin-top: 4px;
}

.btb-timeline-label {
  font-size: var(--btb-text-small);
  color: var(--btb-text);
}

.btb-timeline-meta {
  font-size: var(--btb-text-label);
  letter-spacing: var(--btb-ls-badge);
  text-transform: uppercase;
  color: var(--btb-subtle);
  margin-top: 2px;
}

/* ─────────────────────────────────────────
   CHAT WIDGET
───────────────────────────────────────── */

.btb-chat-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: var(--btb-chat-fab-size);
  height: var(--btb-chat-fab-size);
  background: #3a9b62;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  z-index: var(--btb-z-modal);
  transition: background var(--btb-transition);
}

.btb-chat-fab:hover {
  background: #2d7a4f;
}

.btb-chat-panel {
  position: fixed;
  bottom: 96px;
  right: 24px;
  width: var(--btb-chat-panel-w);
  height: var(--btb-chat-panel-h);
  background: var(--btb-chat-bg);
  border: 1px solid var(--btb-chat-border);
  display: flex;
  flex-direction: column;
  z-index: var(--btb-z-modal);
}

.btb-chat-panel.hidden {
  display: none;
}

.btb-chat-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--btb-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.btb-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btb-chat-bubble {
  max-width: 80%;
  padding: 10px 14px;
  font-size: var(--btb-text-small);
  line-height: 1.5;
  border: 1px solid var(--btb-chat-border);
}

.btb-chat-bubble.agent {
  background: var(--btb-chat-bubble-agent);
  color: var(--btb-text);
  align-self: flex-start;
}

.btb-chat-bubble.user {
  background: var(--btb-chat-bubble-user);
  color: var(--btb-text);
  align-self: flex-end;
  border-color: var(--btb-green-border);
}

.btb-chat-typing {
  display: flex;
  gap: 4px;
  align-items: center;
  padding: 10px 14px;
  background: var(--btb-chat-bubble-agent);
  border: 1px solid var(--btb-chat-border);
  align-self: flex-start;
}

.btb-chat-typing span {
  width: 6px;
  height: 6px;
  background: var(--btb-subtle);
  border-radius: 50%;
  animation: btb-typing 1.2s infinite;
}

.btb-chat-typing span:nth-child(2) {
  animation-delay: 0.2s;
}

.btb-chat-typing span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes btb-typing {
  0%, 60%, 100% { opacity: 0.3; transform: scale(1); }
  30%            { opacity: 1;   transform: scale(1.2); }
}

.btb-chat-input-row {
  padding: 12px;
  border-top: 1px solid var(--btb-border);
  display: flex;
  gap: 8px;
}

.btb-chat-input {
  flex: 1;
  background: var(--btb-surface2);
  border: 1px solid var(--btb-border2);
  color: var(--btb-text);
  padding: 10px 14px;
  font-size: var(--btb-text-small);
  outline: none;
  font-family: var(--btb-font-body);
}

.btb-chat-input:focus {
  border-color: var(--btb-text);
}

/* ─────────────────────────────────────────
   CALENDAR BUTTONS
───────────────────────────────────────── */

.btb-cal-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--btb-border2);
  background: transparent;
  color: var(--btb-muted);
  font-size: var(--btb-text-meta);
  letter-spacing: var(--btb-ls-btn);
  text-transform: uppercase;
  cursor: pointer;
  width: 100%;
  transition: border-color var(--btb-transition), color var(--btb-transition);
  font-family: var(--btb-font-body);
}

.btb-cal-btn:hover {
  border-color: var(--btb-text);
  color: var(--btb-text);
}

.btb-cal-btn-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* ─────────────────────────────────────────
   TCPA OPT-IN
───────────────────────────────────────── */

.btb-opt-in {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 0;
  border-top: 1px solid var(--btb-border);
  margin-top: 12px;
}

.btb-opt-in input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: #3a9b62;
}

.btb-opt-in label {
  font-size: var(--btb-text-label);
  color: var(--btb-subtle);
  line-height: 1.6;
  letter-spacing: 0.02em;
  cursor: pointer;
}