#kab-root {
  --kab-accent: #0f6b5c;
  --kab-bg: #ffffff;
  --kab-fg: #1c2624;
  --kab-muted: #5d6b68;
  --kab-bot: #edf3f1;
  --kab-line: #d6e0dd;
  position: fixed;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  z-index: 99999;
  font-family: inherit;
  font-size: 15px;
  line-height: 1.45;
}
@media (prefers-color-scheme: dark) {
  #kab-root {
    --kab-bg: #18201f;
    --kab-fg: #e8eeec;
    --kab-muted: #a3b2ae;
    --kab-bot: #24302e;
    --kab-line: #33413e;
  }
}
#kab-root *, #kab-root *::before, #kab-root *::after { box-sizing: border-box; }

.kab-launch {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 18px;
  border: 0; border-radius: 999px;
  background: var(--kab-accent); color: #fff;
  font: inherit; font-weight: 600;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(15, 40, 35, .25);
}
.kab-open .kab-launch span { display: none; }

.kab-panel {
  position: absolute; right: 0; bottom: 64px;
  display: flex; flex-direction: column;
  width: min(370px, calc(100vw - 32px));
  height: min(560px, calc(100vh - 110px));
  background: var(--kab-bg); color: var(--kab-fg);
  border: 1px solid var(--kab-line); border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(15, 40, 35, .28);
}
.kab-panel[hidden] { display: none; }

.kab-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px;
  background: var(--kab-accent); color: #fff;
}
.kab-head strong { display: block; font-size: 16px; }
.kab-head small { opacity: .85; }
.kab-close {
  width: 36px; height: 36px;
  border: 0; border-radius: 50%;
  background: transparent; color: #fff;
  font-size: 26px; line-height: 1; cursor: pointer;
}
.kab-close:hover { background: rgba(255, 255, 255, .15); }

.kab-log {
  flex: 1; overflow-y: auto;
  display: flex; flex-direction: column; gap: 8px;
  padding: 16px;
}
.kab-msg {
  max-width: 85%;
  padding: 9px 13px;
  border-radius: 16px;
  white-space: pre-wrap; overflow-wrap: anywhere;
}
.kab-bot { align-self: flex-start; background: var(--kab-bot); border-bottom-left-radius: 4px; }
.kab-user { align-self: flex-end; background: var(--kab-accent); color: #fff; border-bottom-right-radius: 4px; }

.kab-agent { align-self: flex-start; background: var(--kab-bot); border: 2px solid var(--kab-accent); border-bottom-left-radius: 4px; }
.kab-agent small { display: block; font-size: 11px; font-weight: 700; color: var(--kab-accent); margin-bottom: 2px; }
@media (prefers-color-scheme: dark) { .kab-agent small { color: #fff; } }
.kab-notice { align-self: center; max-width: 92%; padding: 4px 8px; background: transparent; color: var(--kab-muted); font-size: 13px; text-align: center; }
.kab-wa {
  align-self: flex-start;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 14px; border-radius: 999px;
  background: #1f8f4e; color: #fff !important;
  font-weight: 600; text-decoration: none !important;
}
.kab-wa::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #fff; }
.kab-wa:hover { filter: brightness(1.08); }
.kab-end {
  align-self: stretch;
  display: flex; align-items: center; gap: 8px;
  color: var(--kab-muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em;
}
.kab-end::before, .kab-end::after { content: ""; flex: 1; height: 1px; background: var(--kab-line); }
.kab-status {
  padding: 7px 16px;
  background: var(--kab-bot); color: var(--kab-fg);
  border-bottom: 1px solid var(--kab-line);
  font-size: 13px; font-weight: 600;
}
.kab-status[hidden] { display: none; }

.kab-typing { display: flex; gap: 4px; padding: 13px; }
.kab-typing span {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--kab-muted);
  animation: kab-dot 1s infinite ease-in-out;
}
.kab-typing span:nth-child(2) { animation-delay: .15s; }
.kab-typing span:nth-child(3) { animation-delay: .3s; }
@keyframes kab-dot { 0%, 80%, 100% { opacity: .3; } 40% { opacity: 1; } }

.kab-form {
  display: flex; align-items: flex-end; gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--kab-line);
}
.kab-form textarea {
  flex: 1; resize: none;
  min-height: 42px; max-height: 120px;
  padding: 10px 12px;
  border: 1px solid var(--kab-line); border-radius: 12px;
  background: var(--kab-bg); color: var(--kab-fg);
  font: inherit;
}
.kab-form button {
  display: grid; place-items: center;
  width: 42px; height: 42px; flex: none;
  border: 0; border-radius: 50%;
  background: var(--kab-accent); color: #fff;
  cursor: pointer;
}
.kab-form button:disabled { opacity: .5; cursor: wait; }

#kab-root button:focus-visible,
#kab-root a:focus-visible,
#kab-root textarea:focus-visible {
  outline: 3px solid var(--kab-accent);
  outline-offset: 2px;
}

@media (max-width: 480px) {
  .kab-open .kab-panel {
    position: fixed; inset: 0;
    width: 100%; height: 100%;
    border: 0; border-radius: 0;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
  }
  .kab-open .kab-launch { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .kab-typing span { animation: none; opacity: .6; }
}