:root {
  --ss-navy: #0b2a4a;
  --ss-blue: #1769e0;
  --ss-green: #159a68;
  --ss-white: #ffffff;
  --ss-border: #dce5ef;
  --ss-text: #19324a;
  --ss-muted: #6b7d90;
  --ss-bg: #f7fafc;
}

#ss-chat-launcher {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 99998;
  width: 58px;
  height: 58px;
  border: 0;
  border-radius: 50%;
  background: var(--ss-green);
  color: white;
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(15, 60, 105, .20);
}

#ss-chat-panel {
  position: fixed;
  right: 22px;
  bottom: 92px;
  z-index: 99999;
  width: min(380px, calc(100vw - 28px));
  height: min(560px, calc(100vh - 120px));
  background: var(--ss-white);
  border: 1px solid var(--ss-border);
  border-radius: 18px;
  box-shadow: 0 18px 55px rgba(15, 50, 80, .20);
  display: none;
  overflow: hidden;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

#ss-chat-panel.ss-open { display: flex; flex-direction: column; }

.ss-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 16px;
  border-bottom: 1px solid var(--ss-border);
}

.ss-chat-title { font-weight: 700; color: var(--ss-navy); }
.ss-chat-subtitle { margin-top: 2px; font-size: 12px; color: var(--ss-muted); }

.ss-chat-close {
  border: 0;
  background: transparent;
  font-size: 24px;
  line-height: 1;
  color: var(--ss-muted);
  cursor: pointer;
}

.ss-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  background: var(--ss-bg);
}

.ss-message {
  max-width: 84%;
  margin: 0 0 10px;
  padding: 10px 12px;
  border-radius: 14px;
  line-height: 1.4;
  font-size: 14px;
  white-space: pre-wrap;
}

.ss-message.assistant {
  background: white;
  color: var(--ss-text);
  border: 1px solid var(--ss-border);
  border-top-left-radius: 5px;
}

.ss-message.user {
  margin-left: auto;
  background: var(--ss-blue);
  color: white;
  border-top-right-radius: 5px;
}

.ss-chat-typing { color: var(--ss-muted); font-size: 13px; margin: 6px 2px; }

.ss-chat-form {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--ss-border);
  background: white;
}

.ss-chat-input {
  min-width: 0;
  flex: 1;
  border: 1px solid var(--ss-border);
  border-radius: 12px;
  padding: 11px 12px;
  outline: none;
  font: inherit;
}

.ss-chat-input:focus { border-color: var(--ss-blue); }

.ss-chat-send {
  border: 0;
  border-radius: 12px;
  padding: 0 15px;
  background: var(--ss-green);
  color: white;
  cursor: pointer;
  font-weight: 700;
}

@media (max-width: 520px) {
  #ss-chat-launcher { right: 14px; bottom: 14px; }
  #ss-chat-panel {
    right: 14px;
    bottom: 82px;
    height: calc(100vh - 105px);
  }
}