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

:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --accent: #06b6d4;
  --accent-hover: #22d3ee;
  --accent-light: rgba(6, 182, 212, 0.15);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border: #334155;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --gradient-start: #0f172a;
  --gradient-end: #1e293b;
}

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

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
  transition: background 0.2s;
}

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

::-webkit-scrollbar-corner {
  background: var(--bg-primary);
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border) var(--bg-primary);
}

.hidden {
  display: none !important;
}

/* Login Screen */
.screen {
  min-height: 100vh;
}

#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.login-container {
  background: var(--bg-secondary);
  padding: 3rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-container h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(90deg, var(--accent), #67e8f9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent);
}

.hint {
  margin-top: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.hint code {
  background: var(--bg-tertiary);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn.primary {
  background: var(--accent);
  color: white;
}

#login-form .btn.primary {
  width: 100%;
}

.btn.primary:hover {
  background: var(--accent-hover);
}

.btn.secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn.secondary:hover {
  background: var(--border);
}

.btn.small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Main Screen */
#main-screen {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-left h2 {
  font-size: 1.25rem;
}

.header-left h2 small {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-left: 0.5rem;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.badge {
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  background: var(--error);
}

.badge.connected {
  background: var(--success);
  color: #000;
}

.badge.connecting {
  background: var(--warning);
  color: #000;
}

.model-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  background: var(--primary);
  color: white;
}

select {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
}

/* Main Container */
.main-container {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar */
#sidebar {
  width: 250px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 1rem;
  flex-shrink: 0;
}

.sidebar-section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  margin-top: 1rem;
}

.sidebar-section:first-child {
  margin-top: 0;
}

.sidebar-section h3 {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Sessions List */
#sessions-list,
#files-list {
  list-style: none;
}

#sessions-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
  transition: background 0.2s;
}

#sessions-list li .session-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#sessions-list li .delete-btn {
  opacity: 0;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  font-size: 1rem;
  line-height: 1;
  transition: all 0.2s;
}

#sessions-list li:hover .delete-btn {
  opacity: 1;
}

#sessions-list li .delete-btn:hover {
  background: var(--error);
  color: white;
}

#sessions-list li:hover {
  background: var(--bg-tertiary);
}

#sessions-list li.active {
  background: var(--accent);
  color: white;
}

#sessions-list li.active .delete-btn {
  color: rgba(255,255,255,0.7);
}

#sessions-list li.active .delete-btn:hover {
  background: rgba(0,0,0,0.2);
  color: white;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0;
  font-size: 0.75rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

.breadcrumb-item {
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  transition: all 0.2s;
}

.breadcrumb-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.breadcrumb-separator {
  color: var(--text-secondary);
}

/* Files List */
#files-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.813rem;
  margin-bottom: 0.125rem;
  transition: background 0.2s;
  color: var(--text-secondary);
}

#files-list li:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

#files-list li .file-icon {
  font-size: 1rem;
  width: 1.25rem;
  text-align: center;
}

#files-list li .file-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#files-list li.folder {
  color: var(--warning);
}

#files-list li.folder:hover {
  color: var(--warning);
}

/* File Actions */
.file-actions {
  display: none;
  gap: 0.25rem;
  margin-left: auto;
}

#files-list li:hover .file-actions {
  display: flex;
}

.file-action-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.125rem 0.25rem;
  font-size: 0.75rem;
  opacity: 0.6;
  transition: opacity 0.2s, transform 0.2s;
  border-radius: 4px;
}

.file-action-btn:hover {
  opacity: 1;
  background: var(--bg-primary);
  transform: scale(1.1);
}

.file-action-btn.delete:hover {
  background: rgba(239, 68, 68, 0.2);
}

/* File Management Buttons */
.file-mgmt-btns {
  display: flex;
  gap: 0.25rem;
  margin-top: 0.5rem;
}

.file-mgmt-btns .btn {
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
}

/* Main Content */
#main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

/* Tabs */
#tabs-container {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.tabs-list {
  display: flex;
  overflow-x: auto;
  padding: 0 0.5rem;
}

.tab {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: 0.875rem;
  white-space: nowrap;
  transition: all 0.2s;
}

.tab:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

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

.tab .tab-close {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.125rem 0.25rem;
  border-radius: 4px;
  font-size: 0.875rem;
  line-height: 1;
}

.tab:hover .tab-close,
.tab.active .tab-close {
  display: block;
}

.tab .tab-close:hover {
  background: var(--error);
  color: white;
}

/* Tab Content */
#tab-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.tab-pane {
  display: none;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

.tab-pane.active {
  display: flex;
}

/* Chat Tab Pane */
.tab-pane[data-pane="chat"] {
  background: var(--bg-primary);
}

#messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
}

/* File Tab Pane */
.file-pane {
  background: var(--bg-primary);
  overflow: hidden;
}

.file-pane-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.file-pane-header .file-path {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.file-pane-content {
  flex: 1;
  overflow: auto;
  padding: 1rem;
}

.file-pane-content pre {
  margin: 0;
  font-family: 'Fira Code', 'Consolas', 'Monaco', monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.file-pane-content code {
  color: var(--text-primary);
}

/* Messages */
.message {
  margin-bottom: 1.5rem;
  max-width: 85%;
}

.message.user {
  margin-left: auto;
}

.message-header {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.message-content {
  padding: 1rem;
  border-radius: 12px;
  line-height: 1.6;
  overflow-wrap: break-word;
  word-break: break-word;
  overflow-x: auto;
}

.message.user .message-content {
  background: var(--accent);
  border-bottom-right-radius: 4px;
}

.message.assistant .message-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

.message-content pre {
  background: var(--bg-primary);
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 0.5rem 0;
}

.message-content code {
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.875rem;
}

/* Inline code */
.message-content code:not(pre code) {
  background: rgba(0, 0, 0, 0.3);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85em;
}

/* Markdown styles */
.message-content strong {
  font-weight: 600;
  color: var(--text-primary);
}

.message-content em {
  font-style: italic;
}

.message-content a {
  color: var(--accent);
  text-decoration: none;
}

.message-content a:hover {
  text-decoration: underline;
}

.message-content h1, .message-content h2, .message-content h3 {
  margin: 1rem 0 0.5rem 0;
  color: var(--text-primary);
}

.message-content h1 { font-size: 1.4em; }
.message-content h2 { font-size: 1.2em; }
.message-content h3 { font-size: 1.1em; }

.message-content ul, .message-content ol {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
}

.message-content li {
  margin: 0.25rem 0;
}

.message-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  margin: 0.5rem 0;
  color: var(--text-secondary);
  font-style: italic;
}

.message-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1rem 0;
}

/* Chat Form */
#chat-form {
  display: flex;
  flex-direction: row;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  align-items: flex-end;
  flex-shrink: 0;
}

#message-input {
  flex: 1 1 auto;
  width: 100%;
  padding: 1rem 1.25rem;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  resize: vertical;
  min-height: 60px;
  max-height: 200px;
  line-height: 1.5;
  box-sizing: border-box;
}

#message-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

#message-input::placeholder {
  color: var(--text-secondary);
}

#send-btn {
  flex: 0 0 auto;
  padding: 1rem 1.5rem;
  min-width: 100px;
  width: auto !important;
  font-weight: 600;
  height: fit-content;
}

/* Live Panel */
#live-panel {
  width: 420px;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.live-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-tertiary);
}

.live-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.875rem;
}

.live-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-secondary);
}

.live-indicator.running {
  background: var(--success);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 4px rgba(74, 222, 128, 0); }
}

.live-controls {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.live-controls .btn {
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
}

#project-select {
  max-width: 120px;
  padding: 0.25rem 0.5rem;
  font-size: 0.7rem;
  border-radius: 4px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  cursor: pointer;
}

#project-select:hover {
  border-color: var(--accent);
}

#project-select:focus {
  outline: none;
  border-color: var(--accent);
}

#live-status {
  padding: 0.4rem 0.75rem;
  background: var(--bg-primary);
  font-size: 0.7rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

#live-status.running {
  color: var(--success);
}

#live-status.error {
  color: var(--error);
}

.live-content {
  flex: 1;
  background: var(--bg-primary);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.live-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: var(--text-secondary);
  text-align: center;
  padding: 2rem;
}

.live-placeholder-icon {
  font-size: 3rem;
  opacity: 0.3;
}

.live-placeholder-text {
  font-size: 0.9rem;
  max-width: 200px;
  line-height: 1.5;
}

.live-placeholder-hint {
  font-size: 0.75rem;
  opacity: 0.6;
}

#live-iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: none;
}

#live-iframe.active {
  display: block;
  background: #fff;
}

/* Loading indicator */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--text-secondary);
  border-radius: 50%;
  border-top-color: var(--accent);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Welcome message */
.welcome-message {
  text-align: center;
  color: var(--text-secondary);
  padding: 3rem;
}

.welcome-message h3 {
  color: var(--text-primary);
  margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 1200px) {
  #live-panel {
    width: 350px;
  }
}

@media (max-width: 900px) {
  #sidebar {
    width: 200px;
  }

  #live-panel {
    width: 300px;
  }
}

@media (max-width: 768px) {
  .main-container {
    flex-direction: column;
  }

  #sidebar {
    width: 100%;
    max-height: 200px;
  }

  #live-panel {
    width: 100%;
    height: 300px;
  }

  .message {
    max-width: 95%;
  }
}

/* ========================================
   STREAMING / LIVE CHAT STYLES
   ======================================== */

/* Mensaje en streaming */
.message.streaming .message-content {
  position: relative;
}

/* Cursor parpadeante */
.cursor {
  animation: blink 1s infinite;
  color: var(--accent);
  font-weight: bold;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* ========================================
   TOOL PROGRESS - Panel colapsable con grid
   ======================================== */

/* Contenedor principal - oculto por defecto hasta que haya items */
.tool-progress {
  display: none;
  flex-direction: column;
  margin-top: 1rem;
  border-radius: 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.3s ease;
}

.tool-progress.visible {
  display: flex;
}

/* Header del panel - siempre visible */
.tool-progress-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  background: var(--bg-tertiary);
  cursor: pointer;
  user-select: none;
}

.tool-progress-header:hover {
  background: var(--border);
}

.tool-progress-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.progress-icon {
  font-size: 0.9rem;
}

.progress-text {
  font-weight: 500;
}

.tool-progress-toggle {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.7rem;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  transition: all 0.2s;
}

.tool-progress-toggle:hover {
  background: var(--bg-primary);
  color: var(--accent);
}

/* Grid de items */
.tool-progress-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 0.4rem;
  padding: 0.5rem;
  max-height: 300px;
  overflow-y: auto;
  transition: all 0.3s ease;
}

/* Estado colapsado */
.tool-progress.collapsed .tool-progress-grid {
  max-height: 0;
  padding: 0;
  overflow: hidden;
}

.tool-progress.collapsed .tool-progress-header {
  border-radius: 8px;
}

/* Items de herramienta - diseño compacto tipo card */
.tool-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  padding: 0.5rem 0.4rem;
  border-radius: 8px;
  font-size: 0.7rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  min-height: 60px;
  text-align: center;
}

/* Efecto de brillo animado mientras está running */
.tool-item.running::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* Icono del step */
.step-icon {
  font-size: 1.2rem;
  line-height: 1;
}

/* Label del step */
.step-label {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Detalle del step (nombre archivo, etc) */
.step-detail {
  color: var(--accent);
  font-family: 'Consolas', monospace;
  font-size: 0.6rem;
  max-width: 70px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  opacity: 0.9;
}

/* Status del step - badge en esquina */
.step-status {
  position: absolute;
  top: 2px;
  right: 2px;
  font-size: 0.65rem;
  color: var(--success);
  font-weight: bold;
  opacity: 0;
  transform: scale(0);
  transition: all 0.3s ease;
}

.tool-item.completed .step-status {
  opacity: 1;
  transform: scale(1);
}

/* Estado running */
.tool-item.running {
  border-color: var(--warning);
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.15) 0%, var(--bg-secondary) 100%);
  box-shadow: 0 0 8px rgba(251, 191, 36, 0.2);
}

.tool-item.running .step-icon {
  animation: pulse 1s ease-in-out infinite;
}

.tool-item.running .step-label {
  color: var(--warning);
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* Estado completado */
.tool-item.completed {
  border-color: var(--success);
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, var(--bg-secondary) 100%);
  opacity: 0.85;
}

.tool-item.completed .step-label {
  color: var(--text-secondary);
}

.tool-item.completed .step-icon {
  opacity: 0.7;
}

/* Animación de entrada - pop */
@keyframes stepPopIn {
  0% {
    opacity: 0;
    transform: scale(0.5);
  }
  70% {
    transform: scale(1.05);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* ========================================
   RESPONSIVE - Grid en mobile
   ======================================== */

@media (max-width: 768px) {
  .tool-progress-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.3rem;
    padding: 0.4rem;
  }

  .tool-item {
    min-height: 50px;
    padding: 0.4rem 0.3rem;
  }

  .step-icon {
    font-size: 1rem;
  }

  .step-label {
    font-size: 0.55rem;
  }

  .step-detail {
    font-size: 0.5rem;
    max-width: 50px;
  }
}

@media (max-width: 480px) {
  .tool-progress-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Texto en streaming */
.text-content {
  line-height: 1.7;
}

/* Estilos para mensajes del asistente en streaming */
.message.streaming .text-content {
  min-height: 1.5em;
}

/* Indicador de conexión SSE */
.sse-status {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.65rem;
  padding: 0.15rem 0.4rem;
  border-radius: 10px;
  background: var(--bg-tertiary);
  margin-left: 0.5rem;
}

.sse-status.connected::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 2s infinite;
}

.sse-status.disconnected::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--error);
}

/* Mejora de legibilidad para código en streaming */
.message.streaming .message-content pre {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
}


/* ========================================
   RESIZER - LIVE PANEL
   ======================================== */

#live-resizer {
  width: 6px;
  background: var(--border);
  cursor: col-resize;
  transition: background 0.2s;
  flex-shrink: 0;
  position: relative;
}

#live-resizer:hover,
#live-resizer.dragging {
  background: var(--accent);
}

#live-resizer::after {
  content: '⋮';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-secondary);
  font-size: 12px;
  opacity: 0;
  transition: opacity 0.2s;
}

#live-resizer:hover::after,
#live-resizer.dragging::after {
  opacity: 1;
  color: white;
}

/* Cuando se arrastra, evitar selección de texto */
body.resizing {
  cursor: col-resize !important;
  user-select: none;
}

body.resizing iframe {
  pointer-events: none;
}

/* Responsive: ocultar resizer en móvil */
@media (max-width: 768px) {
  #live-resizer {
    display: none;
  }
}

/* ========================================
   QUICK ACTIONS - BOTONES DE RESPUESTA RÁPIDA
   ======================================== */

.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

.quick-actions.hidden {
  display: none;
}

.quick-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 0.813rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.quick-action-btn:hover {
  border-color: var(--accent);
  background: var(--accent-light);
  transform: translateY(-1px);
}

.quick-action-btn:active {
  transform: translateY(0);
}

.quick-action-btn .icon {
  font-size: 1rem;
}

/* Variantes de quick actions */
.quick-action-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.quick-action-btn.primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.quick-action-btn.success {
  border-color: var(--success);
  color: var(--success);
}

.quick-action-btn.success:hover {
  background: rgba(16, 185, 129, 0.15);
}

.quick-action-btn.warning {
  border-color: var(--warning);
  color: var(--warning);
}

.quick-action-btn.warning:hover {
  background: rgba(245, 158, 11, 0.15);
}

/* System messages en chat */
.message.system {
  max-width: 100%;
  text-align: center;
}

.message.system .message-content {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.813rem;
  padding: 0.5rem;
}