/* Ecosystem Gateway — Dark Theme */

:root {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-input: #0f3460;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0b0;
  --accent: #53c2c8;
  --accent-dim: #2a6a6e;
  --user-msg: #0f3460;
  --assistant-msg: #1a1a2e;
  --error: #e74c3c;
  --border: #2a2a4a;
  --radius: 12px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
}

#app {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.hidden {
  display: none !important;
}

/* Login Screen */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.login-box {
  background: var(--bg-secondary);
  padding: 2.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  text-align: center;
  max-width: 400px;
  width: 90%;
}

.login-box h1 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--accent);
}

.login-box p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

#api-key-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 1rem;
  margin-bottom: 1rem;
  outline: none;
}

#api-key-input:focus {
  border-color: var(--accent);
}

#login-btn {
  width: 100%;
  padding: 0.75rem;
  background: var(--accent);
  color: var(--bg-primary);
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}

#login-btn:hover {
  opacity: 0.9;
}

.error {
  color: var(--error);
  font-size: 0.85rem;
  margin-top: 0.75rem;
}

/* Chat Screen */
#chat-screen {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

header h1 {
  font-size: 1.1rem;
  color: var(--accent);
}

.user-badge {
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: var(--bg-input);
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
}

.header-right {
  display: flex;
  gap: 0.5rem;
}

.header-right button {
  padding: 0.4rem 0.8rem;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: all 0.2s;
}

.header-right button:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

/* Messages */
#messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.message {
  max-width: 80%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  line-height: 1.5;
  font-size: 0.95rem;
  word-wrap: break-word;
}

.message.user {
  align-self: flex-end;
  background: var(--user-msg);
  border-bottom-right-radius: 4px;
}

.message.assistant {
  align-self: flex-start;
  background: var(--assistant-msg);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

.message.system {
  align-self: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-style: italic;
}

.message .tools-used {
  font-size: 0.75rem;
  color: var(--accent-dim);
  margin-top: 0.4rem;
}

/* Rendered markdown in assistant messages */
.message.assistant p {
  margin: 0 0 0.5rem 0;
}

.message.assistant p:last-child {
  margin-bottom: 0;
}

.message.assistant strong {
  color: #fff;
  font-weight: 600;
}

.message.assistant em {
  font-style: italic;
  color: var(--text-secondary);
}

.message.assistant h3,
.message.assistant h4 {
  color: var(--accent);
  margin: 0.75rem 0 0.3rem 0;
  font-size: 0.95rem;
}

.message.assistant h3:first-child,
.message.assistant h4:first-child {
  margin-top: 0;
}

.message.assistant ul,
.message.assistant ol {
  margin: 0.3rem 0;
  padding-left: 1.3rem;
}

.message.assistant li {
  margin-bottom: 0.2rem;
}

.message.assistant code {
  background: rgba(255, 255, 255, 0.08);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.88em;
  font-family: "SF Mono", "Fira Code", monospace;
}

/* Typing indicator */
.typing {
  align-self: flex-start;
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
}

.typing span {
  animation: blink 1.4s infinite both;
}

.typing span:nth-child(2) { animation-delay: 0.2s; }
.typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes blink {
  0%, 80%, 100% { opacity: 0.2; }
  40% { opacity: 1; }
}

/* Input Area */
#input-area {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

#message-input {
  flex: 1;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  resize: none;
  max-height: 120px;
  outline: none;
}

#message-input:focus {
  border-color: var(--accent);
}

#send-btn {
  padding: 0.65rem;
  background: var(--accent);
  color: var(--bg-primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s;
  flex-shrink: 0;
}

#send-btn:hover {
  opacity: 0.9;
}

#send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Scrollbar */
#messages::-webkit-scrollbar {
  width: 6px;
}

#messages::-webkit-scrollbar-track {
  background: transparent;
}

#messages::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

/* Responsive */
@media (max-width: 600px) {
  .message {
    max-width: 90%;
  }

  header h1 {
    font-size: 0.95rem;
  }

  .user-badge {
    display: none;
  }
}