@import url("https://fonts.googleapis.com/css2?family=Fraunces:wght@600;700&family=Plus+Jakarta+Sans:wght@400;600;700&display=swap");

:root {
  --etc-ink: #0f172a;
  --etc-muted: #64748b;
  --etc-border: #e2e8f0;
  --etc-surface: #ffffff;
  --etc-panel: #f8fafc;
  --etc-accent: #0ea5e9;
  --etc-accent-ink: #ffffff;
  --etc-shadow: 0 30px 60px rgba(15, 23, 42, 0.12);
}

#etc-chat.etc-chat,
#etc-chat.etc-chat * {
  box-sizing: border-box;
}

#etc-chat.etc-chat {
  width: 100%;
  max-width: 100%;
  min-height: calc(100vh - 220px);
  display: flex;
  flex-direction: column;
  margin: 16px auto 24px;
  border: 1px solid var(--etc-border);
  border-radius: 18px;
  overflow: hidden;
  background: var(--etc-surface);
  box-shadow: var(--etc-shadow);
  font-family: "Plus Jakarta Sans", "Segoe UI", Arial, sans-serif;
  color: var(--etc-ink);
}

#etc-chat .etc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 18px;
  background: linear-gradient(120deg, #e0f2fe 0%, #f8fafc 45%, #fef3c7 100%);
  border-bottom: 1px solid var(--etc-border);
}

#etc-chat .etc-title {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.2px;
}

#etc-chat .etc-actions {
  display: flex;
  gap: 10px;
}

#etc-chat .etc-btn,
#etc-chat .etc-send {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  appearance: none;
  background: var(--etc-accent);
  color: var(--etc-accent-ink);
  font-weight: 600;
  font-size: 14px;
  text-transform: none;
  letter-spacing: 0.2px;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
}

#etc-chat .etc-btn {
  background: #0f172a;
}

#etc-chat .etc-btn:hover,
#etc-chat .etc-send:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 24px rgba(15, 23, 42, 0.18);
}

#etc-chat .etc-btn:active,
#etc-chat .etc-send:active {
  transform: translateY(0);
}

#etc-chat .etc-send:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

#etc-chat .etc-messages {
  flex: 1;
  overflow-y: auto;
  padding: 18px 18px 8px;
  background: radial-gradient(circle at top left, #f1f5f9 0%, #ffffff 60%);
}

#etc-chat .etc-msg {
  padding: 12px 14px;
  border-radius: 16px;
  margin: 10px 0;
  white-space: pre-wrap;
  line-height: 1.45;
  border: 1px solid transparent;
  max-width: 76%;
  font-size: 14.5px;
}

#etc-chat .etc-user {
  margin-left: auto;
  background: #dbeafe;
  border-color: #bfdbfe;
}

#etc-chat .etc-bot {
  margin-right: auto;
  background: #f8fafc;
  border-color: #e2e8f0;
}

#etc-chat .etc-inputbar {
  display: flex;
  gap: 10px;
  padding: 14px 16px;
  border-top: 1px solid var(--etc-border);
  background: var(--etc-panel);
}

#etc-chat .etc-input {
  flex: 1;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--etc-border);
  background: #ffffff;
  color: var(--etc-ink);
  font-size: 14.5px;
  outline: none;
  appearance: none;
}

#etc-chat .etc-input:focus {
  border-color: #7dd3fc;
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

#etc-chat .etc-hint {
  padding: 10px 16px 14px;
  font-size: 12.5px;
  color: var(--etc-muted);
  border-top: 1px solid var(--etc-border);
  background: #fff;
}

@media (max-width: 780px) {
  #etc-chat.etc-chat {
    min-height: calc(100vh - 160px);
    border-radius: 12px;
  }

  #etc-chat .etc-header {
    padding: 12px 14px;
  }

  #etc-chat .etc-msg {
    max-width: 90%;
  }

  #etc-chat .etc-inputbar {
    flex-direction: column;
  }

  #etc-chat .etc-send {
    width: 100%;
  }
}

@media (max-width: 480px) {
  #etc-chat.etc-chat {
    min-height: calc(100vh - 120px);
  }

  #etc-chat .etc-title {
    font-size: 16px;
  }
}