.support-assistant-overlay {
  position: fixed;
  inset: 0;
  z-index: 10020;
  display: flex;
  justify-content: flex-end;
  background: transparent;
  backdrop-filter: none;
  pointer-events: none;
}

.support-assistant-overlay[hidden] { display: none; }

.support-assistant-dialog {
  width: clamp(360px, 28vw, 420px);
  max-width: 100vw;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px;
  overflow: hidden;
  color: var(--text, #f5f7fa);
  background: color-mix(in srgb, var(--bg-elev, #111922) 98%, var(--bg, #071019));
  border-left: 1px solid color-mix(in srgb, var(--accent, #47d7ff) 35%, transparent);
  box-shadow: -12px 0 28px rgba(0, 0, 0, 0.2);
  pointer-events: auto;
}

.support-assistant-header,
.support-assistant-header-actions,
.support-assistant-submit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.support-assistant-header h2,
.support-assistant-header p,
.support-assistant-intro,
.support-assistant-submit-row p {
  margin: 0;
}

.support-assistant-eyebrow {
  color: var(--accent, #47d7ff);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.support-assistant-close {
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--border, #344252);
  border-radius: 10px;
  color: inherit;
  background: transparent;
  font-size: 24px;
  line-height: 1;
}

.support-context-indicator {
  padding: 5px 9px;
  border: 1px solid var(--border, #344252);
  border-radius: 999px;
  color: var(--text-muted, #a8b2bd);
  font-size: 11px;
}

.support-context-indicator.is-active {
  color: #8df4be;
  border-color: rgba(72, 209, 139, 0.55);
  background: rgba(72, 209, 139, 0.12);
}

.support-assistant-intro,
.support-assistant-enter-hint {
  color: var(--text-muted, #a8b2bd);
  font-size: 12px;
  line-height: 1.45;
}

.support-assistant-history {
  display: flex;
  gap: 7px;
  overflow-x: auto;
  padding-bottom: 3px;
}

.support-assistant-history button,
.support-assistant-categories button {
  flex: 0 0 auto;
  padding: 7px 10px;
  border: 1px solid var(--border, #344252);
  border-radius: 999px;
  color: inherit;
  background: transparent;
  font-size: 11px;
}

.support-assistant-categories button.is-active {
  color: var(--accent-contrast, #06121a);
  background: var(--accent, #47d7ff);
  border-color: var(--accent, #47d7ff);
}

.support-assistant-messages {
  min-height: 170px;
  flex: 1 1 auto;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border, #344252);
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.12);
}

.support-assistant-message {
  max-width: 88%;
  padding: 10px 12px;
  border-radius: 13px;
  background: color-mix(in srgb, var(--bg-elev-2, #1b2633) 92%, transparent);
}

.support-assistant-message--user {
  align-self: flex-end;
  color: var(--accent-contrast, #06121a);
  background: color-mix(in srgb, var(--accent, #47d7ff) 88%, white);
}

.support-assistant-message strong {
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
}

.support-assistant-message p {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.48;
}

.support-assistant-ticket {
  display: block;
  margin-top: 8px;
  font-weight: 700;
}

.support-assistant-feedback {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  font-size: 11px;
}

.support-assistant-feedback button {
  padding: 3px 8px;
  border: 1px solid currentColor;
  border-radius: 999px;
  color: inherit;
  background: transparent;
}

.support-assistant-categories {
  display: flex;
  gap: 7px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.support-assistant-dialog.has-conversation .support-assistant-categories {
  display: none;
}

.support-assistant-form {
  display: grid;
  gap: 8px;
}

.support-assistant-input-label {
  font-size: 12px;
  font-weight: 700;
}

#supportAssistantInput {
  width: 100%;
  min-height: 78px;
  resize: vertical;
}

.support-assistant-options {
  display: grid;
  gap: 7px;
  padding-top: 8px;
}

.support-assistant-details {
  color: var(--text-muted, #a8b2bd);
  font-size: 11px;
}

.support-assistant-details > summary {
  width: fit-content;
  cursor: pointer;
  font-weight: 700;
}

.support-assistant-details[open] > summary {
  color: var(--text, #f5f7fa);
}

.support-assistant-consent {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--text-muted, #a8b2bd);
  font-size: 11px;
  line-height: 1.35;
}

.support-assistant-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.support-assistant-file-button {
  width: fit-content;
  padding: 6px 10px;
  border: 1px dashed var(--border, #344252);
  border-radius: 8px;
  cursor: pointer;
  font-size: 11px;
}

.support-attachment-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.support-attachment-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 7px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 10px;
}

.support-attachment-chip button {
  padding: 0 3px;
  border: 0;
  color: inherit;
  background: transparent;
}

.support-assistant-submit-row p {
  min-height: 1em;
  color: var(--text-muted, #a8b2bd);
  font-size: 11px;
}

.viewer-fab-control-group {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.support-toolbar-icon {
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.support-toolbar-button.is-active,
.support-toolbar-button[aria-pressed="true"] {
  color: var(--accent-contrast, #06121a);
  background: var(--accent, #47d7ff);
  border-color: var(--accent, #47d7ff);
}

@media (max-width: 620px) {
  .support-assistant-dialog {
    width: min(100vw, 420px);
    height: 100dvh;
    padding: max(12px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
  }
  .support-assistant-options { max-height: 130px; overflow-y: auto; }
  .viewer-fab-control-group { gap: 7px; }
}

@media (prefers-reduced-motion: no-preference) {
  .support-assistant-dialog { animation: support-assistant-enter 180ms ease-out both; }
  @keyframes support-assistant-enter { from { opacity: 0; transform: translateX(24px); } }
}