/* ─── Clawdfather Web UI ─── */

:root {
  --bg-primary: #0a0e14;
  --bg-secondary: #111922;
  --bg-tertiary: #1a2332;
  --bg-input: #0d1117;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #484f58;
  --accent: #f0883e;
  --accent-dim: #f0883e33;
  --green: #3fb950;
  --green-dim: #3fb95033;
  --red: #f85149;
  --red-dim: #f8514933;
  --cyan: #58a6ff;
  --border: #21262d;
  --code-bg: #161b22;
  --scrollbar: #30363d;
  --font-mono: "JetBrains Mono", "Fira Code", "SF Mono", "Cascadia Code", monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

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

html, body {
  height: 100%;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  overflow: hidden;
}

/* ─── Layout ─── */

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-width: 960px;
  margin: 0 auto;
}

/* ─── Header ─── */

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  font-size: 24px;
}

.header-title {
  font-size: 18px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--accent);
}

.header-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-family: var(--font-mono);
}

.status-badge.connected {
  background: var(--green-dim);
  color: var(--green);
}

.status-badge.disconnected {
  background: var(--red-dim);
  color: var(--red);
}

.status-badge.connecting {
  background: var(--accent-dim);
  color: var(--accent);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.status-badge.connecting .status-dot {
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ─── Server Info Bar ─── */

.server-info {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 20px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 13px;
  flex-shrink: 0;
}

.server-info .label {
  color: var(--text-muted);
}

.server-info .value {
  color: var(--cyan);
}

/* ─── Messages ─── */

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  scroll-behavior: smooth;
}

.messages::-webkit-scrollbar {
  width: 6px;
}

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

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

.message {
  margin-bottom: 16px;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.message-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.message-sender {
  font-weight: 600;
  font-size: 14px;
}

.message-sender.user { color: var(--green); }
.message-sender.assistant { color: var(--accent); }
.message-sender.system { color: var(--text-muted); }

.message-time {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.message-body {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.7;
  overflow-wrap: break-word;
}

.message.user .message-body {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
}

.message.assistant .message-body {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
}

.message.system .message-body {
  background: transparent;
  color: var(--text-muted);
  font-style: italic;
  padding: 4px 0;
  font-size: 13px;
}

/* ─── Code blocks ─── */

.message-body pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 16px;
  overflow-x: auto;
  margin: 8px 0;
  position: relative;
}

.message-body code {
  font-family: var(--font-mono);
  font-size: 13px;
}

.message-body :not(pre) > code {
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  font-family: var(--font-mono);
  opacity: 0;
  transition: opacity 0.15s;
}

pre:hover .copy-btn {
  opacity: 1;
}

.copy-btn:hover {
  color: var(--text-primary);
  background: var(--border);
}

/* ─── Thinking indicator ─── */

.thinking {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  color: var(--text-muted);
  font-size: 13px;
}

.thinking-dots span {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: bounce 1.4s infinite ease-in-out both;
  margin-right: 3px;
}

.thinking-dots span:nth-child(1) { animation-delay: -0.32s; }
.thinking-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1); }
}

/* ─── Input ─── */

.input-area {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.input-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

#message-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  padding: 10px 14px;
  resize: none;
  min-height: 44px;
  max-height: 200px;
  outline: none;
  transition: border-color 0.15s;
}

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

#message-input::placeholder {
  color: var(--text-muted);
}

#send-btn {
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: #000;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 18px;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.15s;
}

#send-btn:hover { opacity: 0.9; }
#send-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.input-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 6px;
  font-family: var(--font-mono);
}

/* ─── Welcome screen ─── */

.welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  text-align: center;
  padding: 40px;
}

.welcome-logo {
  font-size: 64px;
  margin-bottom: 16px;
}

.welcome h2 {
  font-size: 24px;
  color: var(--accent);
  font-family: var(--font-mono);
  margin-bottom: 8px;
}

.welcome p {
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 24px;
}

.welcome code {
  background: var(--code-bg);
  padding: 8px 16px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--green);
  border: 1px solid var(--border);
}

/* ─── Responsive ─── */

@media (max-width: 640px) {
  .header { padding: 10px 14px; }
  .messages { padding: 14px; }
  .input-area { padding: 12px 14px; }
  .server-info { padding: 6px 14px; gap: 10px; font-size: 12px; }
  #message-input { font-size: 16px; /* prevent iOS zoom */ }
  .header-subtitle { display: none; }
}