/* =========================================
   Dustcontrol Canada Chatbot UI
   ========================================= */

#dustcontrol-chat-root {
  --dc-blue: var(--dc-color, #0b59a1);
  --dc-orange: #f07f21;
  --dc-bg: #f6f8fb;
  --dc-white: #ffffff;
  --dc-text: #172033;
  --dc-muted: #667085;
  --dc-border: #e4e8ef;
  --dc-soft: #f1f4f8;
  --dc-radius: 12px;
  --dc-radius-lg: 18px;
  --dc-shadow: 0 18px 50px rgba(16, 24, 40, .18);
  font-family: inherit;
}

#dustcontrol-chat-root *,
#dustcontrol-chat-root *::before,
#dustcontrol-chat-root *::after {
  box-sizing: border-box;
}

#dc-fab {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 2147483000;
  min-height: 46px;
  padding: 0 18px;
  border: 0;
  border-radius: 999px;
  background: var(--dc-blue);
  color: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(11, 89, 161, .24);
  transition: transform .12s ease, box-shadow .18s ease, filter .18s ease;
}

#dc-fab:hover {
  filter: brightness(.96);
  box-shadow: 0 12px 30px rgba(11, 89, 161, .28);
}

#dc-fab:active { transform: translateY(1px); }

#dc-fab:focus-visible,
#dc-close:focus-visible,
.dc-chip:focus-visible,
.dc-btn:focus-visible,
.dc-ghost:focus-visible,
#dc-send:focus-visible,
#dc-text:focus-visible {
  outline: 3px solid rgba(11, 89, 161, .22);
  outline-offset: 2px;
}

#dc-modal {
  position: fixed;
  right: 18px;
  bottom: 78px;
  z-index: 2147483000;
  display: none;
  flex-direction: column;
  width: 390px;
  max-width: calc(100vw - 28px);
  height: min(620px, 82vh);
  max-height: 82vh;
  overflow: hidden;
  border: 1px solid rgba(16, 24, 40, .06);
  border-radius: var(--dc-radius-lg);
  background: var(--dc-white);
  color: var(--dc-text);
  box-shadow: var(--dc-shadow);
}

#dc-header {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 64px;
  padding: 10px 12px 10px 16px;
  background: var(--dc-blue);
  color: #fff;
}

.dc-header-copy { min-width: 0; }

.dc-header-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 15px;
  line-height: 1.2;
  font-weight: 750;
}

.dc-header-subtitle {
  margin-top: 3px;
  font-size: 11px;
  line-height: 1.2;
  font-weight: 500;
  opacity: .82;
}

#dc-close {
  flex: 0 0 auto;
  margin-left: auto;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: rgba(255,255,255,.12);
  color: #fff;
  font: inherit;
  font-size: 15px;
  cursor: pointer;
  transition: background .16s ease, transform .1s ease;
}

#dc-close:hover { background: rgba(255,255,255,.2); }
#dc-close:active { transform: scale(.98); }

#dc-body {
  flex: 1 1 auto;
  min-height: 0;
  padding: 16px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--dc-bg);
  scrollbar-width: thin;
  scrollbar-color: #cbd3df transparent;
}

.dc-msg {
  display: flex;
  gap: 8px;
  margin: 9px 0;
}

.dc-bot { justify-content: flex-start; }
.dc-user { justify-content: flex-end; }

.dc-bubble {
  max-width: 84%;
  padding: 10px 12px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.dc-bot .dc-bubble {
  border: 1px solid var(--dc-border);
  border-top-left-radius: 6px;
  background: #fff;
  color: var(--dc-text);
  box-shadow: 0 1px 2px rgba(16,24,40,.03);
}

.dc-user .dc-bubble {
  border: 1px solid var(--dc-blue);
  border-top-right-radius: 6px;
  background: var(--dc-blue);
  color: #fff;
}

.dc-bot .dc-bubble a {
  color: var(--dc-blue);
  font-weight: 650;
  text-decoration: underline;
  text-underline-offset: 2px;
}

#dc-qr {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

#dc-qr .dc-chip {
  width: 100%;
  min-height: 44px;
  margin: 0;
  padding: 10px 13px;
  border: 1px solid var(--dc-border);
  border-radius: 13px;
  background: #fff;
  color: var(--dc-text);
  font: inherit;
  font-size: 13.5px;
  line-height: 1.3;
  font-weight: 650;
  text-align: left;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(16,24,40,.035);
  transition: transform .08s ease, border-color .15s ease, background .15s ease, box-shadow .15s ease;
}

#dc-qr .dc-chip:hover {
  border-color: #c9d2df;
  background: #fbfcfe;
  box-shadow: 0 4px 12px rgba(16,24,40,.06);
}

#dc-qr .dc-chip:active { transform: translateY(1px); }

#dc-qr .dc-chip--primary {
  border-color: var(--dc-blue);
  background: var(--dc-blue);
  color: #fff;
  box-shadow: 0 5px 14px rgba(11,89,161,.16);
}

#dc-qr .dc-chip--primary:hover {
  background: var(--dc-blue);
  border-color: var(--dc-blue);
  filter: brightness(.97);
}

#dc-qr .dc-chip--secondary,
#dc-qr .dc-chip--back {
  border-color: var(--dc-border);
  background: var(--dc-soft);
  color: var(--dc-text);
  box-shadow: none;
}

#dc-qr .dc-chip--secondary:hover,
#dc-qr .dc-chip--back:hover { background: #e9eef4; }

.dc-start-view #dc-qr {
  gap: 9px;
  margin-top: 14px;
}

.dc-start-view #dc-qr .dc-chip {
  min-height: 48px;
  padding: 12px 14px;
  font-size: 14px;
}

#dc-input {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--dc-border);
  background: #fff;
}

#dc-text {
  flex: 1;
  min-width: 0;
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--dc-border);
  border-radius: 12px;
  background: #fff;
  color: var(--dc-text);
  font: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}

#dc-text::placeholder { color: #98a2b3; }

#dc-text:focus {
  border-color: var(--dc-blue);
  box-shadow: 0 0 0 3px rgba(11,89,161,.1);
}

#dc-text:disabled {
  background: var(--dc-soft);
  color: var(--dc-muted);
  cursor: not-allowed;
  opacity: .72;
}

#dc-send,
.dc-btn {
  min-height: 40px;
  padding: 9px 14px;
  border: 0;
  border-radius: 12px;
  background: var(--dc-orange);
  color: #fff;
  font: inherit;
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(16,24,40,.06);
  transition: transform .08s ease, filter .15s ease;
}

#dc-send:hover,
.dc-btn:hover { filter: brightness(.96); }
#dc-send:active,
.dc-btn:active { transform: translateY(1px); }
#dc-send:disabled { opacity: .5; cursor: not-allowed; }

.dc-ghost {
  min-height: 38px;
  padding: 8px 11px;
  border: 1px solid var(--dc-border);
  border-radius: 11px;
  background: #fff;
  color: var(--dc-text);
  font: inherit;
  font-size: 13px;
  font-weight: 650;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}

.dc-ghost:hover { background: var(--dc-soft); border-color: #d6dce5; }

.dc-form label {
  display: block;
  margin: 11px 0 5px;
  color: #344054;
  font-size: 12px;
  line-height: 1.3;
  font-weight: 650;
}

.dc-form input,
.dc-form textarea,
.dc-form select,
.dc-time-select,
#dc-faq-search {
  width: 100%;
  padding: 10px 11px;
  border: 1px solid var(--dc-border) !important;
  border-radius: 11px !important;
  background: #fff;
  color: var(--dc-text);
  font: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}

.dc-form input:focus,
.dc-form textarea:focus,
.dc-form select:focus,
.dc-time-select:focus,
#dc-faq-search:focus {
  border-color: var(--dc-blue) !important;
  box-shadow: 0 0 0 3px rgba(11,89,161,.1);
}

.dc-form textarea { min-height: 88px; resize: vertical; }

.dc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 13px;
}

.dc-helper,
.dc-typing {
  color: var(--dc-muted);
  font-size: 12px;
  line-height: 1.45;
}

.dc-typing { margin: 7px 2px; }

.dc-success,
.dc-error {
  margin-top: 11px;
  padding: 10px 12px;
  border-radius: 11px;
  font-size: 13px;
  line-height: 1.45;
}

.dc-success {
  border: 1px solid #a6f4c5;
  background: #ecfdf3;
  color: #067647;
}

.dc-error {
  border: 1px solid #fecdca;
  background: #fef3f2;
  color: #b42318;
}

.dc-view h4 {
  margin: 10px 0 12px;
  color: var(--dc-text);
  font-size: 16px;
  line-height: 1.3;
  font-weight: 750;
}

#dc-chat-backbar {
  position: sticky;
  top: -16px;
  z-index: 20;
  padding: 10px 0 8px;
  margin: -10px 0 8px;
  background: linear-gradient(var(--dc-bg) 75%, rgba(246,248,251,0));
}

.dc-faq {
  margin: 8px 0;
  padding: 10px 11px;
  border: 1px solid var(--dc-border);
  border-radius: 12px;
  background: #fff;
}

.dc-faq summary {
  color: var(--dc-text);
  font-size: 13px;
  line-height: 1.4;
  font-weight: 650;
  cursor: pointer;
}

@media (max-width: 480px) {
  #dc-modal {
    right: 10px;
    bottom: 70px;
    width: calc(100vw - 20px);
    max-width: none;
    height: min(620px, 82vh);
    max-height: 82vh;
    border-radius: 16px;
  }

  #dc-fab { right: 12px; bottom: 12px; }
  #dc-body { padding: 14px; }
  #dc-chat-backbar { top: -14px; }
  .dc-bubble { max-width: 88%; }
}

@media (prefers-reduced-motion: reduce) {
  #dustcontrol-chat-root * { transition: none !important; scroll-behavior: auto !important; }
}