:root {
  --nsaic-primary: #111111;
  --nsaic-accent: #f3f4f6;
  --nsaic-panel-bg: #ffffff;
  --nsaic-header-bg: #ffffff;
  --nsaic-body-bg: #fafafa;
  --nsaic-text-color: #111111;
  --nsaic-user-bubble-text: #ffffff;
}

.nsaic-widget {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 99999;
  font-family: Arial, sans-serif;
}

.nsaic-toggle {
  border: 0;
  border-radius: 999px;
  padding: 14px 18px;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(0,0,0,.15);
}

.nsaic-panel {
  width: 360px;
  max-width: calc(100vw - 30px);
  height: 560px;
  background: var(--nsaic-panel-bg);
  border-radius: 18px;
  box-shadow: 0 20px 45px rgba(0,0,0,.18);
  overflow: hidden;
  display: none;
  flex-direction: column;
  margin-bottom: 12px;
}

.nsaic-panel.active {
  display: flex;
}

.nsaic-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid #ececec;
  background: var(--nsaic-header-bg);
  color: var(--nsaic-text-color);
}

.nsaic-header p {
  margin: 6px 0 0;
  font-size: 12px;
  color: color-mix(in srgb, var(--nsaic-text-color) 70%, white);
}

.nsaic-close {
  border: 0;
  background: transparent;
  font-size: 24px;
  cursor: pointer;
}

.nsaic-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  background: var(--nsaic-body-bg);
}

.nsaic-message {
  max-width: 86%;
  margin-bottom: 12px;
  padding: 10px 12px;
  border-radius: 14px;
  line-height: 1.45;
  font-size: 14px;
}

.nsaic-bot {
  background: var(--nsaic-panel-bg);
  border: 1px solid #ececec;
}

.nsaic-user {
  margin-left: auto;
  background: var(--nsaic-primary);
  color: var(--nsaic-user-bubble-text);
}

.nsaic-lead-box,
.nsaic-footer {
  padding: 14px;
  border-top: 1px solid #ececec;
  background: var(--nsaic-panel-bg);
}

.nsaic-lead-box input,
.nsaic-footer input {
  width: 100%;
  box-sizing: border-box;
  padding: 12px;
  margin-bottom: 10px;
  border: 1px solid #d9d9d9;
  color: var(--nsaic-text-color);
  border-radius: 10px;
}

.nsaic-lead-box button,
.nsaic-footer button,
.nsaic-quick {
  border: 0;
  border-radius: 10px;
  padding: 11px 14px;
  cursor: pointer;
}

.nsaic-lead-box button,
.nsaic-footer button {
  width: 100%;
}

.nsaic-quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 14px 0;
  background: var(--nsaic-panel-bg);
}

.nsaic-quick {
  font-size: 12px;
}

@media (max-width: 600px) {
  .nsaic-widget {
    right: 12px;
    left: 12px;
    bottom: 12px;
  }

  .nsaic-panel {
    width: 100%;
    height: 70vh;
  }
}

.nsaic-toggle,
.nsaic-lead-box button,
.nsaic-footer button {
  background: var(--nsaic-primary);
  color: var(--nsaic-user-bubble-text);
}

.nsaic-quick {
  background: var(--nsaic-accent);
  color: var(--nsaic-text-color);
}

.nsaic-close {
  color: var(--nsaic-text-color);
}