:root {
  --karl-bg: rgba(10, 12, 16, 0.92);
  --karl-panel: rgba(17, 19, 24, 0.96);
  --karl-panel-2: rgba(24, 28, 36, 0.96);
  --karl-border: rgba(79, 221, 213, 0.24);
  --karl-text: #f0f4ff;
  --karl-muted: #95a3be;
  --karl-cyan: #4fddd5;
  --karl-amber: #f4b86a;
  --karl-green: #20e3a2;
  --karl-shadow: 0 22px 70px rgba(0, 0, 0, 0.38), 0 0 40px rgba(79, 221, 213, 0.12);
  --karl-radius: 18px;
}

#karl-root {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 72;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--karl-text);
}

.karl-launcher {
  position: relative;
  width: 74px;
  height: 74px;
  border: 1px solid var(--karl-border);
  border-radius: 24px;
  background:
    radial-gradient(circle at 35% 20%, rgba(255, 255, 255, 0.2), transparent 30%),
    linear-gradient(145deg, rgba(18, 48, 55, 0.96), rgba(12, 17, 24, 0.98));
  box-shadow: var(--karl-shadow);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.karl-launcher:hover,
.karl-launcher:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(79, 221, 213, 0.7);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45), 0 0 38px rgba(79, 221, 213, 0.22);
  outline: none;
}

.karl-launcher__bot {
  width: 50px;
  height: 50px;
  color: var(--karl-cyan);
  filter: drop-shadow(0 0 10px rgba(79, 221, 213, 0.36));
}

.karl-launcher__dot {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 13px;
  height: 13px;
  border-radius: 999px;
  background: var(--karl-amber);
  border: 2px solid #0a0c10;
  transform: scale(0);
  transition: transform 160ms ease;
}

.karl-launcher__dot.is-visible {
  transform: scale(1);
}

.karl-launcher.is-happy .karl-launcher__bot {
  animation: karl-hop 640ms ease;
}

.karl-launcher.is-walking {
  animation: karl-walk 900ms ease;
}

.karl-panel {
  position: absolute;
  right: 0;
  bottom: 88px;
  width: min(390px, calc(100vw - 28px));
  max-height: min(670px, calc(100vh - 130px));
  background:
    linear-gradient(180deg, rgba(23, 29, 38, 0.94), rgba(10, 12, 16, 0.97)),
    radial-gradient(circle at 20% 0%, rgba(79, 221, 213, 0.12), transparent 34%);
  border: 1px solid var(--karl-border);
  border-radius: var(--karl-radius);
  box-shadow: var(--karl-shadow);
  overflow: hidden;
  display: none;
}

.karl-panel.is-open {
  display: flex;
  flex-direction: column;
  animation: karl-rise 180ms ease both;
}

.karl-panel__header {
  padding: 18px 18px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.karl-panel__title {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.karl-panel__avatar {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(79, 221, 213, 0.1);
  border: 1px solid rgba(79, 221, 213, 0.22);
  color: var(--karl-cyan);
}

.karl-panel__avatar svg {
  width: 26px;
  height: 26px;
}

.karl-panel__name {
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin: 0;
}

.karl-panel__status {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 3px;
  color: var(--karl-muted);
  font-size: 0.78rem;
}

.karl-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--karl-amber);
  box-shadow: 0 0 12px rgba(244, 184, 106, 0.45);
}

.karl-status-dot.is-online {
  background: var(--karl-green);
  box-shadow: 0 0 12px rgba(32, 227, 162, 0.45);
}

.karl-status-dot.is-guide {
  background: var(--karl-cyan);
  box-shadow: 0 0 12px rgba(79, 221, 213, 0.42);
}

.karl-panel__close {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--karl-muted);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.karl-panel__close:hover,
.karl-panel__close:focus-visible {
  color: var(--karl-text);
  border-color: rgba(79, 221, 213, 0.38);
  background: rgba(79, 221, 213, 0.09);
  outline: none;
}

.karl-panel__messages {
  flex: 1;
  min-height: 240px;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scrollbar-color: rgba(79, 221, 213, 0.45) rgba(255, 255, 255, 0.05);
}

.karl-message {
  max-width: 88%;
  padding: 12px 13px;
  border-radius: 15px;
  font-size: 0.92rem;
  line-height: 1.48;
  word-wrap: break-word;
  overflow-wrap: anywhere;
}

.karl-message--bot {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--karl-text);
}

.karl-message--user {
  align-self: flex-end;
  color: #071016;
  background: linear-gradient(135deg, #62eee7, #32c9d8);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.karl-message__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.karl-message__links a,
.karl-chip {
  border: 1px solid rgba(79, 221, 213, 0.28);
  background: rgba(79, 221, 213, 0.08);
  color: var(--karl-text);
  border-radius: 999px;
  padding: 7px 10px;
  font-size: 0.78rem;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.karl-chip {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.karl-message__links a:hover,
.karl-chip:hover,
.karl-chip:focus-visible {
  border-color: rgba(79, 221, 213, 0.62);
  background: rgba(79, 221, 213, 0.14);
  transform: translateY(-1px);
  outline: none;
}

.karl-typing {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 11px 13px;
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.karl-typing span {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--karl-cyan);
  animation: karl-pulse 900ms ease-in-out infinite;
}

.karl-typing span:nth-child(2) {
  animation-delay: 120ms;
}

.karl-typing span:nth-child(3) {
  animation-delay: 240ms;
}

.karl-panel__chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 16px 14px;
  max-width: 100%;
  box-sizing: border-box;
}

.karl-panel__form {
  display: flex;
  gap: 10px;
  padding: 14px 16px 16px;
  background: rgba(3, 7, 12, 0.28);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.karl-input {
  flex: 1;
  min-width: 0;
  min-height: 44px;
  background: var(--karl-panel-2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 13px;
  color: var(--karl-text);
  padding: 0 12px;
  font: inherit;
}

.karl-input:focus {
  outline: none;
  border-color: var(--karl-cyan);
  box-shadow: 0 0 0 3px rgba(79, 221, 213, 0.13);
}

.karl-send {
  width: 46px;
  min-width: 46px;
  min-height: 44px;
  border: 0;
  border-radius: 13px;
  background: var(--karl-cyan);
  color: #061014;
  cursor: pointer;
  font-weight: 800;
  transition: transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
}

.karl-send:hover,
.karl-send:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 0 20px rgba(79, 221, 213, 0.35);
  outline: none;
}

.karl-send:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.karl-toast {
  position: absolute;
  right: 0;
  bottom: 88px;
  max-width: 300px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(79, 221, 213, 0.24);
  background: var(--karl-panel);
  box-shadow: var(--karl-shadow);
  color: var(--karl-text);
  font-size: 0.86rem;
  display: none;
}

.karl-toast.is-visible {
  display: block;
  animation: karl-rise 180ms ease both;
}

@keyframes karl-rise {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes karl-hop {
  0%, 100% { transform: translateY(0); }
  38% { transform: translateY(-7px); }
  70% { transform: translateY(2px); }
}

@keyframes karl-walk {
  0%, 100% { transform: translateX(0); }
  22% { transform: translateX(-4px) rotate(-1deg); }
  50% { transform: translateX(3px) rotate(1deg); }
  76% { transform: translateX(-2px); }
}

@keyframes karl-pulse {
  0%, 80%, 100% { opacity: 0.35; transform: translateY(0); }
  40% { opacity: 1; transform: translateY(-3px); }
}

@media (max-width: 480px) {
  #karl-root {
    right: 10px;
    bottom: 10px;
  }

  .karl-launcher {
    width: 60px;
    height: 60px;
    border-radius: 20px;
  }

  .karl-launcher__bot {
    width: 42px;
    height: 42px;
  }

  .karl-panel {
    right: 0;
    bottom: 72px;
    width: calc(100vw - 20px);
    max-height: 70vh;
  }

  .karl-message {
    max-width: 94%;
  }
}

@media (prefers-reduced-motion: reduce) {
  #karl-root,
  #karl-root *,
  #karl-root *::before,
  #karl-root *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}