/* ANNA Admin UI - Dark Theme */
:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-input: #0d1117;
  --border: #30363d;
  --text: #c9d1d9;
  --text-dim: #8b949e;
  --accent: #58a6ff;
  --accent-hover: #79c0ff;
  --green: #3fb950;
  --red: #f85149;
  --yellow: #d29922;
  --radius: 8px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }

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

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  width: 340px;
  text-align: center;
}

.login-logo {
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 3px;
  margin-bottom: 4px;
}

.login-subtitle {
  color: var(--text-dim);
  font-size: 14px;
  margin-bottom: 24px;
}

.login-card form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.error-msg {
  color: var(--red);
  font-size: 13px;
  margin-top: 8px;
  min-height: 20px;
}

/* Inputs */
input[type="text"],
input[type="password"],
input[type="number"],
textarea,
select {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
  width: 100%;
  outline: none;
  transition: border-color 0.2s;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
}

textarea {
  resize: vertical;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 13px;
  line-height: 1.5;
}

/* Buttons */
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 16px;
  font-size: 13px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.btn-ghost:hover { color: var(--text); border-color: var(--text-dim); }

/* Header */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}

.header-left, .header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
}

.badge {
  font-size: 11px;
  text-transform: uppercase;
  background: var(--border);
  color: var(--text-dim);
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 1px;
}

.health-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-dim);
  margin-left: 8px;
}

.health-dot.ok { background: var(--green); box-shadow: 0 0 6px var(--green); }
.health-dot.error { background: var(--red); }

.health-text {
  font-size: 12px;
  color: var(--text-dim);
}

.service-badge {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--border);
  color: var(--text-dim);
}

.service-badge.healthy { background: rgba(63, 185, 80, 0.15); color: var(--green); }
.service-badge.unhealthy { background: rgba(248, 81, 73, 0.15); color: var(--red); }

/* Tabs */
.tabs {
  display: flex;
  gap: 0;
  padding: 0 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}

.tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-dim);
  padding: 12px 20px;
  font-size: 14px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* Tab Content */
.tab-content { display: none; padding: 24px; max-width: 900px; margin: 0 auto; }
.tab-content.active { display: block; }

/* Dashboard Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.card-label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.card-value {
  font-size: 16px;
  font-weight: 600;
  word-break: break-all;
}

.section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}

.section h3 {
  font-size: 13px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.prompt-preview {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text);
  white-space: pre-wrap;
}

/* Credits */
.credits-row {
  display: flex;
  gap: 24px;
  margin-bottom: 12px;
}

.credit-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.credit-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.credit-value {
  font-size: 18px;
  font-weight: 700;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.credit-value.accent { color: var(--green); }

.credits-bar-wrap {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.credits-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.5s ease;
}

.credits-bar.high { background: var(--red); }
.credits-bar.medium { background: var(--yellow); }

/* Model Chain */
.model-chain {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
}

.chain-item {
  display: flex;
  align-items: center;
  gap: 0;
}

.chain-model {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 13px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  white-space: nowrap;
}

.chain-model.primary {
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.chain-model .chain-tag {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: block;
  color: var(--text-dim);
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  margin-bottom: 2px;
}

.chain-model.primary .chain-tag { color: var(--accent); }

.chain-arrow {
  color: var(--text-dim);
  font-size: 18px;
  padding: 0 6px;
}

.chain-provider {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 8px;
}

/* Chat */
.chat-messages {
  height: calc(100vh - 240px);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 0;
}

.chat-empty {
  color: var(--text-dim);
  text-align: center;
  margin-top: 40%;
  font-size: 15px;
}

.chat-msg {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
  word-wrap: break-word;
  white-space: pre-wrap;
}

.chat-msg.user {
  align-self: flex-end;
  background: var(--accent);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.chat-msg.bot {
  align-self: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

.chat-msg.error {
  align-self: center;
  background: rgba(248, 81, 73, 0.15);
  color: var(--red);
  font-size: 13px;
}

.chat-input {
  display: flex;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.chat-input input { flex: 1; }

/* Config */
.config-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.config-section h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--accent);
}

.config-section label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.config-section label input,
.config-section label select,
.config-section label textarea {
  margin-top: 4px;
}

.hint {
  color: var(--text-dim);
  font-size: 11px;
  font-style: italic;
}

.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.config-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 12px;
}

.config-actions-left { display: flex; align-items: center; gap: 8px; }
.config-actions-right { display: flex; gap: 10px; }

.btn-save { min-width: 180px; }

.loading {
  text-align: center;
  color: var(--text-dim);
  padding: 40px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 20px;
  font-size: 14px;
  z-index: 1000;
  transition: opacity 0.3s, transform 0.3s;
  transform: translateY(0);
}

.toast.hidden { opacity: 0; transform: translateY(20px); pointer-events: none; }
.toast.success { border-color: var(--green); color: var(--green); }
.toast.error { border-color: var(--red); color: var(--red); }

/* Responsive */
@media (max-width: 600px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .tab { padding: 10px 14px; font-size: 13px; }
  header { padding: 10px 16px; }
  .tab-content { padding: 16px; }
  .config-actions { flex-direction: column; }
}