:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;
  color-scheme: light dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #1a1a1a;
}

body {
  margin: 0;
}

/* New 3-Panel Grid Layout */
.app-container {
  display: grid;
  grid-template-columns: 320px 1fr 400px; /* System | Main | Knowledge */
  grid-template-rows: auto 1fr; /* Header | Content */
  grid-template-areas:
    "header header header"
    "system-panel main-panel knowledge-panel";
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

.app-header {
  grid-area: header;
  padding: 1rem 2rem;
  border-bottom: 1px solid #333;
  background-color: #242424;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.tagline {
  color: #888;
  font-size: 0.9rem;
  margin: 0.2rem 0 0 0;
}

.system-panel,
.main-panel,
.knowledge-panel {
  padding: 1rem;
  overflow-y: auto;
  height: calc(100vh - 80px); /* Adjust based on header height */
}

.system-panel {
  grid-area: system-panel;
  background-color: #202020;
  border-right: 1px solid #333;
}

.main-panel {
  grid-area: main-panel;
  display: flex;
  flex-direction: column;
}

.knowledge-panel {
  grid-area: knowledge-panel;
  background-color: #202020;
  border-left: 1px solid #333;
}

.panel-section {
  margin-bottom: 2rem;
  border: 1px solid #333;
  border-radius: 8px;
  padding: 1rem;
}

.panel-section h3 {
  margin-top: 0;
  color: #00aaff;
}

/* General Component Styles */

button {
  padding: 10px 20px;
  border-radius: 6px;
  border: 1px solid transparent;
  background-color: #007acc;
  color: white;
  font-size: 1em;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

button:disabled {
  background-color: #444;
  cursor: not-allowed;
  opacity: 0.6;
}

button:hover:not(:disabled) {
  background-color: #0099e6;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 122, 204, 0.3);
}

button:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 1px 4px rgba(0, 122, 204, 0.2);
}

input, select, textarea {
  width: 100%;
  padding: 10px 15px;
  border-radius: 6px;
  border: 1px solid #555;
  background-color: #333;
  color: white;
  font-size: 1em;
  box-sizing: border-box;
}

/* Chat/Inference Styles (re-purposed) */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.messages {
  flex-grow: 1;
  overflow-y: auto;
  padding-right: 10px;
  margin-bottom: 1rem;
}

.message {
  margin-bottom: 1.5rem;
  padding: 1rem;
  border-radius: 8px;
  line-height: 1.6;
}

.question {
  background-color: #3a3a3a;
  align-self: flex-end;
  max-width: 80%;
  margin-left: auto;
}

.response {
  background-color: #2a2a2a;
  border: 1px solid #4a4a4a;
  max-width: 95%;
}

.input-area {
  margin-top: 1rem;
  display: flex;
  gap: 10px;
}

/* Save button disabled state */
.save-btn:disabled {
  background-color: #555;
  cursor: not-allowed;
}

/* Loading Dots Animation */
.loading-dots {
  display: inline-block;
  width: 1.5em; /* Adjust as needed */
  text-align: left;
}

.loading-dots span {
  animation: blink 1.4s infinite;
}

.loading-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes blink {
  0% { opacity: 0.2; }
  20% { opacity: 1; }
  100% { opacity: 0.2; }
}