:root {
  color-scheme: light dark;
  --bg: #0e1117;
  --bg-elevated: #161b22;
  --text: #e6edf3;
  --border: rgba(128, 128, 128, 0.3);
  --accent: #2f81f7;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.layout {
  display: flex;
  height: 100vh;
  height: 100dvh;
}

.sidebar {
  width: 460px;
  flex-shrink: 0;
  background: var(--bg-elevated);
  padding: 1rem;
  border-right: 1px solid var(--border);
  height: 100vh;
  height: 100dvh;
  overflow-y: auto;
}

.sidebar h2 {
  font-size: 1rem;
  margin: 1rem 0 0.5rem;
}

.sidebar label {
  display: block;
  font-size: 0.85rem;
  margin-top: 0.5rem;
  opacity: 0.8;
}

.sidebar input[type="text"],
.sidebar input[type="number"],
.sidebar input[type="file"],
.sidebar select {
  width: 100%;
  padding: 0.4rem;
  margin-top: 0.2rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
}

button {
  cursor: pointer;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: #232830;
  color: var(--text);
  padding: 0.5rem 0.8rem;
  font-size: 0.9rem;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  width: 100%;
  margin-top: 0.5rem;
}

.btn-secondary {
  width: 100%;
  margin-top: 0.5rem;
}

.btn-new-rag {
  width: 100%;
  margin-top: 0.5rem;
  background: #232830;
  border-color: var(--border);
  color: var(--text);
}

.btn-new-rag .plus-icon {
  filter: grayscale(1) brightness(1.6);
}

.rag-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0;
}

.rag-list li {
  display: flex;
  gap: 0.3rem;
  margin-bottom: 0.3rem;
}

.rag-list li.selected .rag-select {
  border-color: var(--accent);
}

.rag-select {
  flex: 1;
  text-align: left;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ingest-logs {
  margin-top: 1rem;
  font-size: 0.75rem;
}

.log-line {
  padding: 0.15rem 0;
  border-bottom: 1px dotted var(--border);
  opacity: 0.85;
}

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  min-height: 0;
}

.banner {
  position: sticky;
  top: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--bg);
  color: #ffffff;
  padding: 0.75rem 1rem;
  font-size: 1.75rem;
  font-weight: 700;
  border-bottom: 1px solid var(--border);
}

.banner-icon {
  filter: grayscale(1) brightness(1.6);
}

.hamburger-btn {
  display: none;
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 1.5rem;
  line-height: 1;
  padding: 0.25rem 0.5rem;
}

.sidebar-overlay {
  display: none;
}

.info-banner {
  margin: 1rem;
  padding: 0.75rem 1rem;
  background: rgba(47, 129, 247, 0.15);
  border: 1px solid var(--accent);
  border-radius: 6px;
}

.messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 1rem;
}

.msg {
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  max-width: 90%;
}

.msg-user {
  background: var(--bg-elevated);
  margin-left: auto;
}

.msg-assistant {
  background: rgba(47, 129, 247, 0.08);
  margin-right: auto;
}

.msg-content p:first-child { margin-top: 0; }
.msg-content p:last-child { margin-bottom: 0; }

.msg-typing {
  opacity: 0.6;
  animation: blink 1s steps(2) infinite;
}

@keyframes blink {
  50% { opacity: 0.1; }
}

.msg-caption {
  font-size: 0.75rem;
  opacity: 0.6;
  margin-top: 0.4rem;
}

.regen-btn {
  margin-top: 0.5rem;
  padding: 0.3rem 0.6rem;
  font-size: 0.75rem;
  opacity: 0.8;
}

.regen-btn:hover {
  opacity: 1;
}

.msg-error {
  color: #ff6b6b;
}

.sources {
  margin-top: 0.5rem;
  font-size: 0.8rem;
}

.source-item {
  margin: 0.4rem 0;
  padding: 0.4rem;
  background: var(--bg);
  border-radius: 4px;
}

.source-meta {
  opacity: 0.7;
  margin-bottom: 0.2rem;
}

.source-text {
  white-space: pre-wrap;
  margin: 0;
  font-size: 0.75rem;
}

.chat-toolbar {
  display: flex;
  justify-content: flex-start;
  padding: 0.5rem 1rem 0;
  border-top: 1px solid var(--border);
}

.chat-toolbar .btn-secondary {
  width: auto;
  margin-top: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.5rem 0.8rem;
  font-size: 0.9rem;
  background: var(--bg);
  color: #cccccc;
}

.chat-toolbar .btn-secondary.disabled {
  opacity: 0.4;
  pointer-events: none;
}

#chat-form {
  display: flex;
  gap: 0.5rem;
  padding: 1rem;
}

#chat-form input {
  flex: 1;
  padding: 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
}

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.modal.open {
  display: flex;
}

.modal-content {
  background: var(--bg-elevated);
  padding: 1.5rem;
  border-radius: 8px;
  width: 480px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-content label {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.85rem;
}

.modal-content input {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.25rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.chunk-row {
  display: flex;
  gap: 1rem;
}

.model-options-form {
  margin-top: 0.5rem;
}

.info-icon {
  cursor: help;
  font-size: 0.75rem;
  opacity: 0.7;
}

.info-icon:hover {
  opacity: 1;
}

.chunk-row > div {
  flex: 1;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.error {
  color: #ff6b6b;
}

.warning {
  color: #e3b341;
  font-size: 0.8rem;
}

.htmx-indicator {
  display: none;
  margin-top: 0.75rem;
  opacity: 0.8;
}

.htmx-request .htmx-indicator {
  display: block;
}

.ingest-progress-live {
  margin-top: 0.75rem;
  padding: 0.5rem;
  max-height: 200px;
  overflow-y: auto;
  font-size: 0.8rem;
  font-family: monospace;
  background: #ffffff;
  color: #333333;
  border: 1px solid var(--border);
  border-radius: 4px;
}

/* Responsive: collapse the sidebar into a hamburger-triggered drawer.
   Only layout/positioning changes here - colors and the desktop layout
   above are untouched. */
@media (max-width: 860px) {
  .hamburger-btn {
    display: inline-block;
  }

  .sidebar {
    width: min(300px, 85vw);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1001;
    transform: translateX(-100%);
    transition: transform 0.2s ease-in-out;
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.4);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease-in-out;
  }

  .sidebar-overlay.open {
    opacity: 1;
    pointer-events: auto;
  }

  .main {
    max-width: 100%;
  }
}

.login-wrap {
  height: 100vh;
  height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.login-card {
  width: 100%;
  max-width: 340px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
}

.login-card h1 {
  font-size: 1.4rem;
  margin: 0 0 1.25rem;
  text-align: center;
}

.login-card label {
  display: block;
  font-size: 0.85rem;
  margin-top: 0.75rem;
  opacity: 0.8;
}

.login-card input {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.25rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.login-card button {
  width: 100%;
  margin-top: 1.5rem;
}

.sidebar-user {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  opacity: 0.9;
}

.sidebar-user form {
  margin: 0;
}

.sidebar-user button {
  padding: 0.3rem 0.6rem;
  font-size: 0.8rem;
}

.admin-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  height: 100vh;
  height: 100dvh;
  overflow-y: auto;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.admin-header h1 {
  font-size: 1.5rem;
  margin: 0;
}

.admin-header .sidebar-user {
  margin-bottom: 0;
  min-width: 220px;
}

.admin-section {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.admin-section h2 {
  font-size: 1.1rem;
  margin: 0 0 1rem;
}

.admin-create-user {
  display: flex;
  align-items: flex-end;
  gap: 1rem;
  flex-wrap: wrap;
}

.admin-create-user label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  opacity: 0.8;
}

.admin-create-user input {
  padding: 0.5rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.admin-users-table {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.admin-user-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
}

.admin-user-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.admin-user-name {
  font-weight: 700;
}

.admin-user-meta {
  font-size: 0.8rem;
  opacity: 0.7;
  flex: 1;
}

.admin-user-header .user-delete {
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
}

.admin-rag-list {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
}

.admin-rag-list li {
  padding: 0.35rem 0;
  border-top: 1px dotted var(--border);
}

.admin-rag-name {
  font-weight: 600;
}

.admin-rag-meta {
  display: block;
  font-size: 0.75rem;
  opacity: 0.7;
}

.admin-no-rags {
  font-size: 0.8rem;
  opacity: 0.6;
  margin: 0.5rem 0 0;
}