/* ==========================================================================
   GRAPHSHELL CORE DESIGN SYSTEM
   ========================================================================== */

:root {
  /* Color Palettes */
  --bg-primary: #0a0c10;
  --bg-secondary: rgba(20, 24, 33, 0.7);
  --bg-tertiary: #191f2c;
  --accent-cyan: #00f0ff;
  --accent-green: #39ff14;
  --accent-amber: #ffb300;
  --accent-red: #ff3366;
  
  --text-main: #e2e8f0;
  --text-dim: #718096;
  --text-glow: 0 0 8px rgba(0, 240, 255, 0.5);
  --text-green-glow: 0 0 8px rgba(57, 255, 20, 0.5);

  /* Fonts */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'Fira Code', monospace;

  /* Borders & Shadows */
  --border-neon: 1px solid rgba(0, 240, 255, 0.2);
  --border-dim: 1px solid rgba(113, 128, 150, 0.15);
  --shadow-neon: 0 8px 32px 0 rgba(0, 240, 255, 0.05);
  --glass-blur: blur(16px);
  --border-radius: 12px;
  --transition-speed: 0.25s;
}

/* Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
}

/* CRT Screen Effects */
.crt-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle, rgba(0, 0, 0, 0) 60%, rgba(0, 0, 0, 0.4) 100%);
  pointer-events: none;
  z-index: 9999;
}

.scanlines {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%, 
    rgba(0, 0, 0, 0.15) 50%
  ), linear-gradient(
    90deg,
    rgba(255, 0, 0, 0.03),
    rgba(0, 255, 0, 0.01),
    rgba(0, 0, 255, 0.03)
  );
  background-size: 100% 4px, 6px 100%;
  pointer-events: none;
  z-index: 9998;
}

/* App Container Layout */
.app-container {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at 50% 50%, #101520 0%, #06080c 100%);
  padding: 12px;
}

/* Header Styles */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 50px;
  border-bottom: var(--border-neon);
  background: rgba(10, 12, 16, 0.8);
  backdrop-filter: var(--glass-blur);
  padding: 0 16px;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  margin-bottom: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-image {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.25);
  object-fit: cover;
}

.header-logo h1 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.version {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  vertical-align: super;
}

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

.stat-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 8px;
  border-radius: 4px;
  background: var(--bg-tertiary);
  border: var(--border-dim);
}

.connection-status.offline {
  border-color: rgba(255, 179, 0, 0.3);
  color: var(--accent-amber);
}

.connection-status.online {
  border-color: rgba(57, 255, 20, 0.3);
  color: var(--accent-green);
  text-shadow: var(--text-green-glow);
}

.settings-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed);
}

.settings-btn:hover {
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.05);
}

/* App Body / Workspace Splitter */
.app-body {
  display: flex;
  flex: 1;
  gap: 12px;
  height: calc(100% - 70px);
  overflow: hidden;
}

/* Left Pane: Terminal CLI */
.terminal-pane {
  flex: 1.2;
  display: flex;
  flex-direction: column;
  background: rgba(5, 7, 10, 0.95);
  border: var(--border-neon);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-neon);
  overflow: hidden;
  padding: 12px;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(113, 128, 150, 0.08);
  margin-bottom: 10px;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.terminal-dot.red { background: var(--accent-red); }
.terminal-dot.yellow { background: var(--accent-amber); }
.terminal-dot.green { background: var(--accent-green); }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-left: 6px;
}

.terminal-history {
  flex: 1;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-right: 6px;
}

.log-line {
  word-break: break-all;
  white-space: pre-wrap;
  line-height: 1.4;
}

.log-line.system { color: #8a9ba8; }
.log-line.info { color: var(--accent-cyan); }
.log-line.success { color: var(--accent-green); }
.log-line.warning { color: var(--accent-amber); }
.log-line.error { color: var(--accent-red); }
.log-line.cmd-input {
  color: var(--text-main);
  margin-top: 6px;
  font-weight: 600;
}

.terminal-input-container {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.prompt-symbol {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-cyan);
  text-shadow: var(--text-glow);
}

#terminal-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-main);
}

/* Right Pane: Visual Explorer */
.explorer-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border: var(--border-dim);
  backdrop-filter: var(--glass-blur);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
}

.explorer-tabs {
  display: flex;
  background: rgba(10, 12, 16, 0.5);
  border-bottom: var(--border-dim);
}

.tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition-speed);
  border-bottom: 2px solid transparent;
}

.tab-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.02);
}

.tab-btn.active {
  color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.03);
}

.explorer-content {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.tab-panel {
  display: none;
  width: 100%;
  height: 100%;
  overflow-y: auto;
  padding: 16px;
}

.tab-panel.active {
  display: flex;
  flex-direction: column;
}

/* Visual Dashboard Widgets */
.panel-placeholder {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
}

.empty-state {
  text-align: center;
  color: var(--text-dim);
  max-width: 320px;
}

.empty-state svg {
  margin-bottom: 16px;
  color: rgba(0, 240, 255, 0.3);
}

.pulse-icon {
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.08); opacity: 1; }
}

.empty-state h3 {
  color: var(--text-main);
  margin-bottom: 6px;
  font-size: 1.1rem;
}

.empty-state p {
  font-size: 0.85rem;
}

.cmd-shortcut {
  background: var(--bg-tertiary);
  border: var(--border-dim);
  padding: 2px 5px;
  border-radius: 4px;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
}

/* Users Explorer List */
.users-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.user-card {
  background: var(--bg-tertiary);
  border: var(--border-dim);
  border-radius: 8px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  transition: transform var(--transition-speed), border var(--transition-speed);
}

.user-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-cyan);
}

.user-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00f0ff 0%, #39ff14 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #000;
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.user-name {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  width: 100%;
}

.user-title {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  width: 100%;
}

.user-badge {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 10px;
  background: rgba(0, 240, 255, 0.08);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.2);
}

/* Mail Explorer Interface */
.mail-app {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 12px;
}

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

.btn-compose {
  background: rgba(0, 240, 255, 0.1);
  border: var(--border-neon);
  color: var(--accent-cyan);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-speed);
}

.btn-compose:hover {
  background: rgba(0, 240, 255, 0.2);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

.mail-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
}

.mail-item {
  background: var(--bg-tertiary);
  border: var(--border-dim);
  border-radius: 8px;
  padding: 12px;
  cursor: pointer;
  transition: border var(--transition-speed);
}

.mail-item:hover {
  border-color: var(--accent-cyan);
}

.mail-item-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
}

.mail-sender {
  font-weight: 600;
  font-size: 0.85rem;
}

.mail-date {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.mail-subject {
  font-size: 0.8rem;
  color: var(--text-main);
  margin-bottom: 4px;
}

.mail-preview {
  font-size: 0.75rem;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Mail Read Panel */
.mail-view {
  background: var(--bg-tertiary);
  border: var(--border-dim);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.mail-view-back {
  background: none;
  border: none;
  color: var(--accent-cyan);
  cursor: pointer;
  font-size: 0.8rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.mail-view-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
  border-bottom: 1px solid rgba(113, 128, 150, 0.1);
  padding-bottom: 10px;
}

.mail-view-meta {
  font-size: 0.8rem;
  margin-bottom: 16px;
}

.mail-view-body {
  font-size: 0.85rem;
  line-height: 1.6;
  white-space: pre-wrap;
  flex: 1;
  overflow-y: auto;
}

/* Calendar Explorer Layout */
.calendar-app {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 12px;
}

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

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  background: rgba(255, 255, 255, 0.02);
  padding: 4px;
  border-radius: 8px;
  border: var(--border-dim);
}

.calendar-day-header {
  text-align: center;
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--text-dim);
  padding: 6px 0;
}

.calendar-cell {
  background: var(--bg-primary);
  aspect-ratio: 1;
  border-radius: 4px;
  padding: 6px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid rgba(255, 255, 255, 0.02);
}

.calendar-cell.today {
  border-color: var(--accent-cyan);
  box-shadow: inset 0 0 6px rgba(0, 240, 255, 0.2);
}

.calendar-date-num {
  font-size: 0.75rem;
  font-weight: 600;
}

.calendar-indicator-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: var(--text-glow);
  align-self: center;
}

.calendar-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.event-item {
  background: var(--bg-tertiary);
  border-left: 3px solid var(--accent-cyan);
  border-radius: 0 8px 8px 0;
  padding: 10px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.event-details {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.event-subject {
  font-weight: 600;
  font-size: 0.85rem;
}

.event-time {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* OneDrive File Explorer */
.drive-app {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 12px;
}

.drive-breadcrumbs {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
}

.drive-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.drive-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border: var(--border-dim);
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.drive-item:hover {
  border-color: var(--accent-cyan);
  background: rgba(255, 255, 255, 0.01);
}

.drive-item-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.drive-icon {
  color: var(--accent-cyan);
}
.drive-icon.folder {
  color: var(--accent-amber);
}

.drive-name {
  font-size: 0.85rem;
  font-weight: 500;
}

.drive-size {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* JSON Inspector Pane */
.json-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(113, 128, 150, 0.1);
}

.json-url {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-amber);
}

.copy-btn {
  background: rgba(255, 255, 255, 0.05);
  border: var(--border-dim);
  color: var(--text-main);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.copy-btn:hover {
  background: rgba(0, 240, 255, 0.1);
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.json-code-block {
  flex: 1;
  overflow: auto;
  background: rgba(5, 7, 10, 0.5);
  border-radius: 6px;
  padding: 12px;
  border: var(--border-dim);
}

#json-output-area {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #a6e22e; /* Classic green coding color */
  line-height: 1.4;
  white-space: pre-wrap;
}

/* AI Copilot Pane */
.ai-chat-container {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-right: 4px;
  margin-bottom: 12px;
}

.ai-msg {
  display: flex;
  gap: 12px;
}

.ai-msg.user {
  flex-direction: row-reverse;
}

.msg-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
}

.ai-msg.assistant .msg-avatar {
  background: linear-gradient(135deg, #00f0ff 0%, #7000ff 100%);
  color: #fff;
  box-shadow: var(--text-glow);
}

.ai-msg.user .msg-avatar {
  background: var(--bg-tertiary);
  color: var(--text-main);
  border: var(--border-dim);
}

.msg-content {
  max-width: 80%;
  background: var(--bg-tertiary);
  border: var(--border-dim);
  padding: 12px 16px;
  border-radius: 0 12px 12px 12px;
  font-size: 0.85rem;
  line-height: 1.5;
}

.ai-msg.user .msg-content {
  border-radius: 12px 0 12px 12px;
  background: rgba(0, 240, 255, 0.05);
  border-color: rgba(0, 240, 255, 0.2);
}

.msg-content p {
  margin-bottom: 8px;
}
.msg-content p:last-child {
  margin-bottom: 0;
}

.msg-content ul {
  padding-left: 20px;
  margin-top: 6px;
}

.msg-content li {
  margin-bottom: 4px;
}

.ai-suggestion {
  color: var(--accent-cyan);
  text-decoration: none;
}
.ai-suggestion:hover {
  text-decoration: underline;
}

.ai-chat-input-area {
  display: flex;
  gap: 8px;
  background: rgba(10, 12, 16, 0.5);
  padding: 8px;
  border-radius: 8px;
  border: var(--border-dim);
}

#ai-chat-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 0.85rem;
  padding: 4px;
}

#ai-chat-send-btn {
  background: var(--bg-tertiary);
  border: var(--border-dim);
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed);
}

#ai-chat-send-btn:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.05);
}

/* Settings Drawer/Overlay */
.settings-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(5, 7, 10, 0.7);
  backdrop-filter: blur(8px);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.settings-overlay.active {
  display: flex;
}

.settings-card {
  width: 100%;
  max-width: 500px;
  background: #11151e;
  border: var(--border-neon);
  border-radius: var(--border-radius);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  max-height: 90vh;
  overflow: hidden;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.settings-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: var(--border-dim);
}

.settings-card-header h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-cyan);
  text-shadow: var(--text-glow);
}

.close-settings-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

.close-settings-btn:hover {
  color: var(--accent-red);
}

.settings-card-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.settings-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-bottom: 1px solid rgba(113, 128, 150, 0.05);
  padding-bottom: 16px;
}

.settings-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.settings-section h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 4px;
}

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

.settings-group.toggle-group {
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
}

.settings-group label {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.settings-group input[type="text"],
.settings-group input[type="password"] {
  background: var(--bg-primary);
  border: var(--border-dim);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: 6px;
  outline: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  transition: border var(--transition-speed);
}

.settings-group input[type="text"]:focus,
.settings-group input[type="password"]:focus {
  border-color: var(--accent-cyan);
}

.settings-group input[type="checkbox"] {
  width: 36px;
  height: 20px;
  appearance: none;
  background: var(--bg-tertiary);
  border-radius: 10px;
  position: relative;
  cursor: pointer;
  outline: none;
  border: var(--border-dim);
  transition: background var(--transition-speed);
}

.settings-group input[type="checkbox"]:checked {
  background: var(--accent-cyan);
}

.settings-group input[type="checkbox"]::before {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text-main);
  top: 2px;
  left: 2px;
  transition: transform var(--transition-speed);
}

.settings-group input[type="checkbox"]:checked::before {
  transform: translateX(16px);
  background: var(--bg-primary);
}

.settings-note {
  font-size: 0.75rem;
  color: var(--text-dim);
  line-height: 1.4;
}

.real-mode-fields.disabled {
  opacity: 0.4;
  pointer-events: none;
}

.danger-btn {
  background: rgba(255, 51, 102, 0.1);
  border: 1px solid rgba(255, 51, 102, 0.3);
  color: var(--accent-red);
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  transition: all var(--transition-speed);
}

.danger-btn:hover {
  background: rgba(255, 51, 102, 0.2);
  border-color: var(--accent-red);
}

.settings-card-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 20px;
  border-top: var(--border-dim);
}

.btn {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.primary-btn {
  background: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  color: var(--bg-primary);
}

.primary-btn:hover {
  background: none;
  color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
}

.secondary-btn {
  background: none;
  border: var(--border-dim);
  color: var(--text-main);
}

.secondary-btn:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.1);
}

::-webkit-scrollbar-thumb {
  background: rgba(113, 128, 150, 0.2);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* ==========================================================================
   HEADER ACTIONS & CONNECT BUTTON
   ========================================================================== */

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

.connect-btn {
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  padding: 6px 14px;
  border-radius: 6px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-speed);
  text-shadow: var(--text-glow);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.1);
}

.connect-btn:hover {
  background: var(--accent-cyan);
  color: var(--bg-primary);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
  text-shadow: none;
}

.connect-btn.connected {
  border-color: var(--accent-green);
  color: var(--accent-green);
  background: rgba(57, 255, 20, 0.05);
  text-shadow: var(--text-green-glow);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.1);
}

.connect-btn.connected:hover {
  background: rgba(57, 255, 20, 0.15);
  box-shadow: 0 0 15px rgba(57, 255, 20, 0.3);
}

.logout-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed);
}

.logout-btn:hover {
  color: var(--accent-red);
  background: rgba(255, 51, 102, 0.08);
  box-shadow: 0 0 10px rgba(255, 51, 102, 0.1);
}

/* ==========================================================================
   LEARN GRAPH PANEL & API LOGGER
   ========================================================================== */

.learn-panel-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
}

.learn-header h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--accent-cyan);
  text-shadow: var(--text-glow);
}

.learn-header p {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.api-logger-card {
  background: rgba(10, 12, 16, 0.4);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: 8px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: inset 0 0 10px rgba(0, 240, 255, 0.02);
}

.api-logger-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(113, 128, 150, 0.15);
  padding-bottom: 6px;
  margin-bottom: 4px;
}

.api-logger-badge {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-dim);
  letter-spacing: 0.5px;
}

.api-logger-status {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--accent-amber);
}

.api-logger-status.success {
  color: var(--accent-green);
  text-shadow: var(--text-green-glow);
}

.api-logger-status.failed {
  color: var(--accent-red);
}

.api-logger-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.api-logger-body .log-row {
  display: flex;
  gap: 8px;
  font-size: 0.8rem;
}

.api-logger-body .label {
  color: var(--text-dim);
  width: 120px;
  flex-shrink: 0;
}

.api-logger-body .value {
  color: var(--text-main);
  word-break: break-all;
}

.api-logger-body .value.code-font {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
}

.api-logger-footer {
  margin-top: 4px;
  display: flex;
  justify-content: flex-end;
}

.learn-more-link {
  font-size: 0.75rem;
  color: var(--accent-amber);
  text-decoration: none;
  transition: all var(--transition-speed);
}

.learn-more-link:hover {
  text-decoration: underline;
  color: var(--text-main);
}

.lessons-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.lesson-card {
  display: flex;
  gap: 16px;
  background: var(--bg-tertiary);
  border: var(--border-dim);
  border-radius: 8px;
  padding: 14px;
  transition: border var(--transition-speed);
}

.lesson-card:hover {
  border-color: rgba(0, 240, 255, 0.3);
}

.lesson-num {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.05);
  user-select: none;
}

.lesson-detail {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.lesson-detail h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

.lesson-endpoint {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-amber);
  margin-bottom: 2px;
}

.lesson-desc {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.4;
  margin-bottom: 6px;
}

.lesson-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
}

.scope-bubble {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 10px;
  background: rgba(0, 240, 255, 0.05);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.15);
  font-family: var(--font-mono);
}

.try-cmd-btn {
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.2);
  color: var(--accent-cyan);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.try-cmd-btn:hover {
  background: var(--accent-cyan);
  color: var(--bg-primary);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
}

/* ==========================================================================
   ACADEMY LAYOUT & DOCS WIDGETS
   ========================================================================== */

.learn-section-divider {
  border-bottom: 1px solid rgba(0, 240, 255, 0.15);
  padding-bottom: 6px;
  margin-top: 24px;
  margin-bottom: 14px;
}

.learn-section-divider h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-amber);
  letter-spacing: 0.5px;
}

.learn-docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.doc-box {
  background: rgba(10, 12, 16, 0.3);
  border: var(--border-dim);
  border-radius: 8px;
  padding: 12px;
}

.doc-box h5 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 6px;
}

.doc-box p {
  font-size: 0.75rem;
  color: var(--text-dim);
  line-height: 1.4;
}

.sandbox-guide-card {
  background: var(--bg-tertiary);
  border: var(--border-dim);
  border-radius: 8px;
  padding: 14px;
}

.sandbox-guide-card p {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.4;
  margin-bottom: 12px;
}

.sandbox-examples {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.example-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.example-desc {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */

@media (max-width: 992px) {
  .app-body {
    gap: 8px;
  }
}

@media (max-width: 768px) {
  html, body {
    overflow-y: auto;
    height: auto;
  }

  .app-container {
    height: auto;
    min-height: 100vh;
    padding: 8px;
  }

  .app-header {
    height: auto;
    min-height: 50px;
    padding: 10px 12px;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
    border-radius: var(--border-radius);
    margin-bottom: 8px;
  }

  .header-stats {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    margin-top: 4px;
    flex-wrap: wrap;
    gap: 8px;
  }

  .clock {
    display: none; /* Hide clock display to save space on mobile */
  }

  .header-actions {
    gap: 8px;
  }

  .connect-btn {
    padding: 5px 12px;
    font-size: 0.75rem;
  }

  .app-body {
    flex-direction: column;
    height: auto;
    overflow: visible;
    gap: 12px;
  }

  .terminal-pane {
    flex: none;
    height: 380px; /* Good height to view logs and command prompt */
  }

  .explorer-pane {
    flex: none;
    height: auto;
    min-height: 500px;
    overflow: visible;
  }

  .tab-btn {
    padding: 10px 6px;
    font-size: 0.75rem;
    gap: 4px;
  }

  .tab-icon {
    width: 12px;
    height: 12px;
  }

  /* Compact padding for cards on mobile */
  .doc-box {
    padding: 10px;
  }
}

@media (max-width: 480px) {
  .header-logo h1 {
    font-size: 1rem;
  }

  .version {
    font-size: 0.7rem;
  }

  .stat-badge {
    font-size: 0.7rem;
    padding: 3px 6px;
  }

  .example-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    margin-bottom: 4px;
  }

  .example-desc {
    margin-left: 0;
  }

  .explorer-tabs {
    flex-wrap: wrap;
  }

  .tab-btn {
    flex: none;
    width: 50%;
    border-bottom: var(--border-dim);
  }
}