src/App.css

/* Premium Styling for local Qwen2.5 Playground */

.app-container {
  max-width: 1000px;
  width: 100%;
  margin: 40px auto;
  padding: 0 20px;
  box-sizing: border-box;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Header Section */
.header-section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: 20px;
  flex-wrap: wrap;
  gap: 15px;
}

.title-group h1 {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.8px;
  background: linear-gradient(135deg, var(--accent), #ff5e97);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0 0 5px 0;
}

.title-group p {
  color: var(--text);
  font-size: 14px;
  margin: 0;
}

.model-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #6b6375;
}

.pulse-dot.loading {
  background-color: #f59e0b;
  animation: pulse 1s infinite ease-in-out;
}

.pulse-dot.ready {
  background-color: #10b981;
  animation: pulse 2.2s infinite ease-in-out;
}

.pulse-dot.error {
  background-color: #ef4444;
}

@keyframes pulse {
  0% {
    transform: scale(0.95);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.35);
    opacity: 1;
  }
  100% {
    transform: scale(0.95);
    opacity: 0.6;
  }
}

/* Glassmorphic Panel Card */
.glass-panel {
  background: var(--social-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

/* Model Download Progress Card */
.loader-box {
  margin-top: 15px;
}

.progress-container {
  width: 100%;
  height: 12px;
  background: var(--code-bg);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 10px;
  border: 1px solid var(--border);
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #ff5e97);
  width: 0%;
  transition: width 0.3s ease;
}

.loading-filename {
  font-size: 13px;
  color: var(--text-h);
  font-weight: 500;
  margin-bottom: 20px;
  word-break: break-all;
}

.file-progress-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  max-height: 200px;
  overflow-y: auto;
  background: var(--code-bg);
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

@media (min-width: 600px) {
  .file-progress-list {
    grid-template-columns: 1fr 1fr;
  }
}

.file-progress-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  font-family: var(--mono);
  padding: 4px 0;
  border-bottom: 1px dashed var(--border);
}

.file-progress-row:last-child {
  border-bottom: none;
}

.file-name {
  color: var(--text-h);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 70%;
}

.file-percent {
  color: var(--accent);
  font-weight: 600;
}

/* Diagnostics bar */
.diagnostics-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 13px;
}

.diagnostic-stat {
  display: flex;
  align-items: center;
  gap: 6px;
}

.diagnostic-stat::after {
  content: '|';
  color: var(--border);
  margin-left: 15px;
}

.diagnostic-stat:last-child::after {
  content: '';
}

.stat-label {
  color: var(--text);
}

.stat-val {
  font-weight: 600;
  color: var(--text-h);
}

.status-green {
  color: #10b981;
}

.speed-highlight {
  color: var(--accent);
  background: var(--accent-bg);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Tabs Navigation */
.tab-navigation {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  overflow-x: auto;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--text);
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-h);
}

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

/* Tab 1: Interactive Chat */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 520px;
  padding: 18px;
}

.chat-log {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-right: 8px;
  margin-bottom: 15px;
}

.chat-message {
  max-width: 80%;
  border-radius: 12px;
  padding: 12px 16px;
  line-height: 1.5;
  font-size: 15px;
  display: flex;
  flex-direction: column;
}

.chat-message.user {
  align-self: flex-end;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  color: var(--text-h);
  border-bottom-right-radius: 2px;
}

.chat-message.assistant {
  align-self: flex-start;
  background: var(--code-bg);
  border: 1px solid var(--border);
  color: var(--text-h);
  border-bottom-left-radius: 2px;
}

.message-header {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text);
  margin-bottom: 4px;
}

.message-body {
  word-break: break-word;
  white-space: pre-wrap;
}

.chat-input-form {
  display: flex;
  gap: 10px;
}

.custom-input {
  flex: 1;
  background: var(--code-bg);
  border: 1px solid var(--border);
  color: var(--text-h);
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 15px;
  outline: none;
  font-family: var(--sans);
  transition: border-color 0.2s;
}

.custom-input:focus {
  border-color: var(--accent);
}

.submit-button {
  background: linear-gradient(135deg, var(--accent), #9b28f8);
  color: #fff;
  border: none;
  padding: 0 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.submit-button:hover:not(:disabled) {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.submit-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Steaming Cursor Pulse */
.streaming-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: var(--accent);
  margin-left: 4px;
  vertical-align: middle;
  animation: cursor-blink 0.8s infinite;
}

@keyframes cursor-blink {
  50% { opacity: 0; }
}

/* Tab 2 & 3: Playgrounds Layout */
.playground-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 800px) {
  .playground-layout {
    grid-template-columns: 320px 1fr;
  }
}

.playground-settings {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.playground-settings h3 {
  margin: 0;
  font-size: 18px;
  color: var(--text-h);
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.setting-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-h);
}

.setting-group textarea {
  background: var(--code-bg);
  border: 1px solid var(--border);
  color: var(--text-h);
  border-radius: 8px;
  padding: 10px;
  font-family: var(--sans);
  font-size: 14px;
  resize: vertical;
  outline: none;
}

.setting-group textarea:focus {
  border-color: var(--accent);
}

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

.setting-value {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
}

.setting-group input[type="range"] {
  accent-color: var(--accent);
}

.help-text {
  font-size: 11px;
  color: var(--text);
}

.playground-workspace {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.input-label {
  font-weight: 600;
  color: var(--text-h);
  font-size: 14px;
  margin-bottom: 6px;
}

.result-section-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 10px;
}

.answer-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  font-size: 15px;
  line-height: 1.6;
  white-space: pre-wrap;
  color: var(--text-h);
}

/* Badge Tags */
.badge-tag {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-tag.none {
  background: #10b981;
  color: #fff;
}

.badge-tag.error {
  background: #ef4444;
  color: #fff;
}