/* --- Variables & Reset --- */
:root {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  
  --border-color: #e2e8f0;
  --border-focus: #6366f1;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  --accent-color: #4f46e5;
  --accent-light: #eff6ff;
  --accent-hover: #4338ca;
  
  --danger-color: #ef4444;
  --success-color: #10b981;
  
  --font-sans: 'Outfit', 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'Fira Code', monospace;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  
  --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-sans);
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  overflow: hidden;
}

/* --- Utilities --- */
.hidden {
  display: none !important;
}

.badge {
  background-color: var(--accent-light);
  color: var(--accent-color);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  border: 1px solid rgba(79, 70, 229, 0.15);
}

/* --- Password Gate Screen --- */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: radial-gradient(circle at 50% 50%, #fafafa 0%, #eaeaea 100%);
  padding: 20px;
}

.login-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 40px;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  max-width: 400px;
  width: 100%;
  text-align: center;
  animation: scaleIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.login-card .logo {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 15px;
}

.login-card h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.login-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 25px;
}

.login-card input {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  outline: none;
  font-size: 1rem;
  margin-bottom: 15px;
  text-align: center;
  transition: var(--transition-smooth);
}

.login-card input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.login-card button {
  width: 100%;
  padding: 14px;
  background-color: var(--accent-color);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.login-card button:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
}

.error-msg {
  color: var(--danger-color);
  font-size: 0.875rem;
  margin-top: 12px;
  font-weight: 500;
}

/* --- App Layout --- */
.app-layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.app-header {
  height: 60px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px;
  box-shadow: var(--shadow-sm);
  z-index: 10;
}

.app-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-right: 12px;
}

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

.secondary-btn {
  background: none;
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition-smooth);
}

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

/* --- Main Grid System --- */
.main-content {
  flex: 1;
  display: grid;
  grid-template-columns: 1.25fr 1.35fr 1.4fr;
  height: calc(100vh - 60px);
  overflow: hidden;
}

.pane {
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.pane:last-child {
  border-right: none;
}

.pane-header {
  height: 52px;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-primary);
}

.pane-header h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

/* --- Double-Tab Chat Header --- */
.chat-tab-header {
  padding: 0;
  justify-content: flex-start;
  background-color: var(--bg-primary);
}

.chat-tab-btn {
  flex: 1;
  height: 100%;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.chat-tab-btn:hover {
  color: var(--text-main);
  background-color: rgba(0,0,0,0.02);
}

.chat-tab-btn.active {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
  background-color: var(--bg-secondary);
  font-weight: 600;
}

/* --- Chat Areas --- */
.chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--bg-secondary);
}

.messages-list {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.message {
  max-width: 82%;
  padding: 14px 18px;
  border-radius: 18px;
  font-size: 0.925rem;
  line-height: 1.55;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
  animation: slideInUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.message.user {
  align-self: flex-end;
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  color: #fff;
  border-bottom-right-radius: 4px;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.18);
}

.message.system {
  align-self: flex-start;
  background-color: #ffffff;
  color: var(--text-main);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.03);
}

/* --- AI Swarm Chat Styling --- */
.swarm-intro {
  padding: 12px 20px;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

.swarm-intro h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}

.swarm-intro p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.swarm-empty {
  text-align: center;
  color: var(--text-light);
  font-size: 0.85rem;
  margin-top: 40px;
}

/* Swarm Chat Message Dialogues */
.swarm-msg-item {
  display: flex;
  gap: 12px;
  margin-bottom: 18px;
  width: 100%;
  animation: slideInUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.swarm-avatar {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.swarm-avatar.orchestrator {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
}

.swarm-avatar.planner {
  background: linear-gradient(135deg, #0f766e, #0d9488);
}

.swarm-avatar.coder {
  background: linear-gradient(135deg, #6d28d9, #8b5cf6);
}

.swarm-avatar.tester {
  background: linear-gradient(135deg, #b91c1c, #ef4444);
}

.swarm-bubble {
  flex: 1;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  border-top-left-radius: 2px;
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
  max-width: calc(100% - 48px);
}

.swarm-bubble-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 0.75rem;
}

.swarm-agent-name {
  font-weight: 600;
  color: var(--text-main);
  text-transform: capitalize;
}

.swarm-agent-target {
  color: var(--text-muted);
  font-size: 0.7rem;
}

.swarm-bubble-text {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-main);
}

/* Custom Scrollbar Styles for modern feel */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* --- Dynamic Tool / Action Cards inside Chat --- */
.tool-action-card {
  align-self: flex-start;
  width: 90%;
  background-color: #f8fafc;
  border: 1px dashed var(--border-color);
  border-radius: 12px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  animation: slideInUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.tool-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  font-weight: 500;
}

.tool-info .tool-icon {
  font-size: 1.2rem;
}

.tool-status {
  display: flex;
  align-items: center;
}

.tool-loader {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(0,0,0,0.1);
  border-radius: 50%;
  border-top-color: var(--accent-color);
  animation: spin 0.8s linear infinite;
}

.tool-success-tick {
  color: var(--success-color);
  font-weight: bold;
  font-size: 1rem;
}

/* --- Input Area --- */
.chat-input-area {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 12px;
  background-color: #ffffff;
}

.chat-input-area input {
  flex: 1;
  padding: 14px 20px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  outline: none;
  font-size: 0.95rem;
  background-color: var(--bg-primary);
  color: var(--text-main);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.01);
  transition: var(--transition-smooth);
}

.chat-input-area input:focus {
  border-color: var(--border-focus);
  background-color: #ffffff;
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.12), inset 0 2px 4px rgba(0, 0, 0, 0.01);
}

.chat-input-area button {
  padding: 0 24px;
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  color: #fff;
  border: none;
  border-radius: 14px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.15);
  transition: var(--transition-smooth);
}

.chat-input-area button:hover {
  background: linear-gradient(135deg, #4338ca, #4f46e5);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.22);
}

.chat-input-area button:active {
  transform: translateY(0);
}

.chat-input-area button:hover {
  background-color: var(--accent-hover);
}

/* --- Panel 2: Editor & File Tree --- */
.editor-container {
  flex: 1;
  display: flex;
  height: calc(100% - 52px);
  overflow: hidden;
}

.file-explorer {
  width: 180px;
  border-right: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.explorer-title {
  padding: 12px 16px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
}

.file-tree {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tree-node {
  font-size: 0.8rem;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-main);
  transition: var(--transition-smooth);
}

.tree-node:hover {
  background-color: var(--bg-tertiary);
}

.tree-node.active {
  background-color: var(--accent-light);
  color: var(--accent-color);
  font-weight: 500;
}

.tree-node.directory {
  font-weight: 500;
  color: var(--text-muted);
}

.editor-workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: #fafafa;
}

.editor-meta {
  height: 32px;
  border-bottom: 1px solid var(--border-color);
  padding: 0 16px;
  display: flex;
  align-items: center;
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 500;
  background-color: var(--bg-tertiary);
}

#code-textarea {
  flex: 1;
  width: 100%;
  border: none;
  resize: none;
  outline: none;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.825rem;
  line-height: 1.55;
  background-color: #fafafa;
  color: #1e1e1e;
}

.editor-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
}

.editor-tabs .tab {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  white-space: nowrap;
  transition: var(--transition-smooth);
}

.editor-tabs .tab.active {
  background-color: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
}

/* --- Panel 3: Preview & Terminal --- */
.preview-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: calc(100% - 52px);
  overflow: hidden;
}

.iframe-wrapper {
  flex: 1.3;
  border-bottom: 1px solid var(--border-color);
  background-color: #fff;
}

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

.terminal-wrapper {
  flex: 1;
  background-color: #0f172a;
  color: #e2e8f0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.terminal-header {
  height: 34px;
  padding: 0 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #1e293b;
  font-size: 0.7rem;
  font-weight: 600;
  color: #94a3b8;
}

.clear-btn {
  background: none;
  border: none;
  color: #64748b;
  cursor: pointer;
  font-size: 0.7rem;
}

.clear-btn:hover {
  color: #cbd5e1;
}

.terminal-body {
  flex: 1;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.775rem;
  overflow-y: auto;
  line-height: 1.45;
}

.terminal-body .prompt {
  color: #38bdf8;
}

.terminal-body .error-text {
  color: #f87171;
}

/* --- Buttons & UI Elements --- */
.small-btn {
  padding: 5px 10px;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  background-color: var(--accent-color);
  color: #fff;
  transition: var(--transition-smooth);
}

.small-btn.outline {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  text-decoration: none;
  display: inline-block;
}

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

/* --- Bottom Tab Nav (Mobile only) --- */
.bottom-nav {
  display: none;
  height: 60px;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
}

.nav-item.active {
  color: var(--accent-color);
}

.nav-icon {
  font-size: 1.15rem;
  margin-bottom: 2px;
}

.nav-label {
  font-size: 0.65rem;
  font-weight: 500;
}

/* Button Loading Spinner */
.btn-loader {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: spin 0.8s linear infinite;
}

/* --- Keyframe Animations --- */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* --- Responsive Media Queries --- */
@media (max-width: 900px) {
  .main-content {
    grid-template-columns: 1fr;
    height: calc(100vh - 60px - 60px);
  }
  
  .pane {
    display: none;
  }
  
  .pane.active {
    display: flex;
  }
  
  .bottom-nav {
    display: flex;
  }
}

/* --- Inline Swarm Thinking Accordion Card --- */
.thinking-accordion {
  align-self: flex-start;
  width: 90%;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background-color: var(--bg-primary);
  margin: 8px 0;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.thinking-header {
  padding: 10px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-color);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid transparent;
}

.thinking-header:hover {
  background-color: var(--bg-tertiary);
}

.thinking-header.open {
  border-bottom-color: var(--border-color);
}

.thinking-header .arrow {
  transition: transform 0.25s ease;
}

.thinking-header.open .arrow {
  transform: rotate(180deg);
}

.thinking-content {
  display: none;
  padding: 12px 14px;
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.45;
  background-color: var(--bg-primary);
}

.thinking-content.open {
  display: block;
}