.support-chat-widget,
body[data-support-chat-context] {
  --support-chat-safe-scroll-space: calc(124px + env(safe-area-inset-bottom, 0px));
}

body[data-support-chat-context]:not(.kintone-admin) {
  scroll-padding-bottom: var(--support-chat-safe-scroll-space);
}

body[data-support-chat-context]:not(.kintone-admin)::after,
body.kintone-admin[data-support-chat-context] .main::after {
  content: "";
  display: block;
  width: 100%;
  height: var(--support-chat-safe-scroll-space);
  pointer-events: none;
}

body.kintone-admin[data-support-chat-context] .main {
  scroll-padding-bottom: var(--support-chat-safe-scroll-space);
}

.support-chat-widget {
  --support-accent: #b94b31;
  --support-accent-strong: #983923;
  --support-bg: #ffffff;
  --support-soft: #f6f8f7;
  --support-line: #d8e2de;
  --support-text: #25302d;
  --support-muted: #61706a;
  position: fixed;
  z-index: 12000;
  right: 24px;
  bottom: 24px;
  color: var(--support-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", Meiryo, sans-serif;
  font-size: 14px;
  line-height: 1.55;
}

.support-chat-widget *,
.support-chat-widget *::before,
.support-chat-widget *::after { box-sizing: border-box; }

.support-chat-head {
  min-width: 58px;
  height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 17px;
  border: 1px solid var(--support-accent-strong);
  border-radius: 29px;
  color: #fff;
  background: var(--support-accent);
  box-shadow: 0 10px 28px rgba(37, 48, 45, .24);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.support-chat-head:hover { background: var(--support-accent-strong); }
.support-chat-head:focus-visible,
.support-chat-close:focus-visible,
.support-chat-send:focus-visible,
.support-chat-quick-button:focus-visible,
.support-chat-action:focus-visible,
.support-chat-resize-handle:focus-visible {
  outline: 3px solid rgba(11, 111, 159, .35);
  outline-offset: 3px;
}

.support-chat-head svg { width: 24px; height: 24px; }

.support-chat-panel {
  width: 392px;
  height: 560px;
  max-height: calc(100vh - 116px);
  position: absolute;
  right: 0;
  bottom: 72px;
  display: grid;
  grid-template-rows: 12px auto minmax(0, 1fr) auto;
  overflow: hidden;
  border: 1px solid var(--support-line);
  border-radius: 14px;
  background: var(--support-bg);
  box-shadow: 0 18px 56px rgba(37, 48, 45, .24);
}

.support-chat-panel[hidden] { display: none; }

.support-chat-resize-handle {
  position: relative;
  cursor: ns-resize;
  touch-action: none;
  background: var(--support-bg);
}

.support-chat-resize-handle::after {
  content: "";
  width: 48px;
  height: 4px;
  position: absolute;
  top: 4px;
  left: calc(50% - 24px);
  border-radius: 4px;
  background: #b8c6c0;
}

.support-chat-header {
  min-height: 58px;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) 36px;
  align-items: center;
  gap: 10px;
  padding: 10px 12px 11px;
  border-bottom: 1px solid var(--support-line);
}

.support-chat-brand-icon,
.support-chat-avatar {
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--support-accent);
  font-weight: 800;
}

.support-chat-brand-icon { width: 36px; height: 36px; border-radius: 10px 14px 10px 14px; }
.support-chat-brand-icon svg { width: 21px; height: 21px; }
.support-chat-heading strong,
.support-chat-heading span { display: block; }
.support-chat-heading strong { font-size: 15px; }
.support-chat-heading span { color: var(--support-muted); font-size: 11px; }

.support-chat-close {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 8px;
  color: var(--support-muted);
  background: transparent;
  cursor: pointer;
}
.support-chat-close:hover { background: var(--support-soft); color: var(--support-text); }
.support-chat-close svg { width: 20px; height: 20px; }

.support-chat-messages {
  min-height: 0;
  overflow-y: auto;
  padding: 16px 14px;
  background: #fbfcfc;
  overscroll-behavior: contain;
}

.support-chat-message {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 13px;
}
.support-chat-message.is-user { justify-content: flex-end; }
.support-chat-avatar { width: 27px; height: 27px; flex: 0 0 auto; border-radius: 50%; font-size: 10px; }
.support-chat-bubble {
  max-width: 82%;
  padding: 10px 12px;
  border: 1px solid var(--support-line);
  border-radius: 4px 13px 13px 13px;
  background: #fff;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}
.support-chat-message.is-user .support-chat-bubble {
  color: #fff;
  border-color: #276f52;
  border-radius: 13px 4px 13px 13px;
  background: #2f7d5c;
}
.support-chat-message.is-error .support-chat-bubble { border-color: #d89b8b; background: #fff5f2; }
.support-chat-message.is-loading .support-chat-bubble { color: var(--support-muted); }

.support-chat-markdown-heading { margin: 12px 0 5px; font-weight: 800; }
.support-chat-markdown-heading:first-child { margin-top: 0; }
.support-chat-markdown-paragraph { margin: 0 0 8px; color: inherit; }
.support-chat-markdown-paragraph:last-child { margin-bottom: 0; }
.support-chat-markdown-list { margin: 5px 0 9px; padding-left: 1.35em; }
.support-chat-markdown-list li { margin: 3px 0; }
.support-chat-markdown-table-wrap { max-width: 100%; margin: 7px 0 10px; overflow-x: auto; }
.support-chat-markdown-table-wrap table { width: 100%; border-collapse: collapse; font-size: 11px; }
.support-chat-markdown-table-wrap th,
.support-chat-markdown-table-wrap td { padding: 5px 6px; border: 1px solid var(--support-line); text-align: left; vertical-align: top; }
.support-chat-markdown-table-wrap th { background: var(--support-soft); font-weight: 700; }
.support-chat-bubble code { padding: 1px 3px; border-radius: 3px; background: var(--support-soft); font-family: "SFMono-Regular", Consolas, monospace; font-size: .9em; }

.support-chat-citations,
.support-chat-actions,
.support-chat-quick-list { display: grid; gap: 7px; margin-top: 9px; }
.support-chat-citation,
.support-chat-action,
.support-chat-quick-button {
  display: block;
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #b9cbc4;
  border-radius: 7px;
  color: #0b668f;
  background: #fff;
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  text-align: left;
  text-decoration: none;
}
.support-chat-citation:hover,
.support-chat-action:hover,
.support-chat-quick-button:hover { border-color: #0b6f9f; background: #f1f8fb; }
.support-chat-quick-list { margin: 2px 0 14px 35px; }

.support-chat-composer { padding: 10px 12px 11px; border-top: 1px solid var(--support-line); background: #fff; }
.support-chat-input-row { display: grid; grid-template-columns: minmax(0, 1fr) 38px; gap: 8px; align-items: end; }
.support-chat-input {
  width: 100%;
  min-height: 42px;
  max-height: 96px;
  resize: none;
  padding: 9px 10px;
  border: 1px solid #adbbb5;
  border-radius: 8px;
  color: var(--support-text);
  background: #fff;
  font: inherit;
}
.support-chat-input:focus { border-color: #0b6f9f; outline: 3px solid rgba(11, 111, 159, .14); }
.support-chat-send {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--support-accent-strong);
  border-radius: 8px;
  color: #fff;
  background: var(--support-accent);
  cursor: pointer;
}
.support-chat-send:hover { background: var(--support-accent-strong); }
.support-chat-send:disabled { cursor: wait; opacity: .55; }
.support-chat-send svg { width: 20px; height: 20px; }
.support-chat-mail-hint,
.support-chat-storage-note,
.support-chat-keyboard-hint { margin: 7px 0 0; color: var(--support-muted); font-size: 10px; line-height: 1.4; }
.support-chat-keyboard-hint { margin-top: 5px; text-align: right; }
.support-chat-mail-hint { display: flex; align-items: flex-start; gap: 5px; }
.support-chat-mail-hint svg { width: 13px; height: 13px; flex: 0 0 auto; margin-top: 1px; }
.support-chat-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 640px) {
  body[data-support-chat-context] {
    --support-chat-safe-scroll-space: calc(100px + env(safe-area-inset-bottom, 0px));
  }

  .support-chat-widget { right: 12px; bottom: 12px; }
  .support-chat-panel { width: calc(100vw - 24px); height: min(620px, calc(100vh - 92px)); max-height: calc(100vh - 92px); bottom: 68px; grid-template-rows: auto minmax(0,1fr) auto; }
  .support-chat-resize-handle { display: none; }
  .support-chat-head-label { display: none; }
  .support-chat-head { width: 56px; min-width: 56px; padding: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .support-chat-widget * { scroll-behavior: auto !important; transition: none !important; }
}