/* Global Reset and Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-color: #0b0c10;
  --panel-bg: #11141a;
  --panel-header-bg: #1b202a;
  --border-color: #2e3846;
  --text-color: #c5c6c7;
  --text-dim: #7f8c8d;
  
  --primary-color: #66fcf1;       /* Cyan */
  --primary-dim: #45a29e;
  --success-color: #00ff66;       /* Neon Green */
  --danger-color: #ff3366;        /* Neon Red */
  --warning-color: #ffb700;       /* Neon Amber */
  --cursor-color: #00ff66;
  
  --font-mono: 'JetBrains Mono', 'Courier New', Courier, monospace;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  user-select: none;
}

/* CRT Screen Effects Mode */
body.crt-on {
  text-shadow: 0 0 2px rgba(102, 252, 241, 0.3);
  animation: crt-flicker 0.15s infinite;
}

body.crt-on #crt-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%, 
    rgba(0, 0, 0, 0.25) 50%
  );
  background-size: 100% 4px;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.45;
}

@keyframes crt-flicker {
  0% { opacity: 0.99; }
  50% { opacity: 0.98; }
  100% { opacity: 0.99; }
}

/* Main Container Grid */
#tui-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
}

/* Header styling */
#tui-header {
  height: 36px;
  background-color: var(--panel-header-bg);
  border-bottom: 2px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 16px;
  font-weight: bold;
}

.header-logo {
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-icon {
  font-size: 18px;
}

.header-status {
  font-size: 13px;
}

#status-indicator {
  padding: 2px 8px;
  border-radius: 2px;
  font-weight: 800;
}

.status-loading {
  background-color: rgba(255, 183, 0, 0.15);
  color: var(--warning-color);
  border: 1px solid var(--warning-color);
}

.status-ready {
  background-color: rgba(0, 255, 102, 0.15);
  color: var(--success-color);
  border: 1px solid var(--success-color);
}

.status-running {
  background-color: rgba(0, 240, 255, 0.15);
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
  animation: pulse 1.5s infinite;
}

.status-waiting {
  background-color: rgba(255, 183, 0, 0.2);
  color: var(--warning-color);
  border: 1px solid var(--warning-color);
  animation: pulse-orange 1s infinite;
}

@keyframes pulse {
  0% { opacity: 0.7; }
  50% { opacity: 1; }
  100% { opacity: 0.7; }
}

@keyframes pulse-orange {
  0% { box-shadow: 0 0 0 0 rgba(255, 183, 0, 0.4); }
  70% { box-shadow: 0 0 0 6px rgba(255, 183, 0, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 183, 0, 0); }
}

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

.toggle-control {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 12px;
}

.toggle-control input {
  cursor: pointer;
  accent-color: var(--primary-color);
}

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

.toggle-control input:checked + .toggle-label {
  color: var(--primary-color);
  text-shadow: 0 0 4px var(--primary-color);
}

/* Workspace Panels Layout */
#tui-workspace {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* Left sidebar - File Explorer */
#panel-explorer {
  width: 240px;
  border-right: 2px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

/* Split content pane on right */
#panel-split-right {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Bottom Terminal Pane */
#panel-terminal {
  height: 40%;
  min-height: 150px;
  border-top: 2px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

/* Top Code Editor Pane */
#panel-editor {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 200px;
}

/* Panels Base Styling */
.tui-panel {
  background-color: var(--panel-bg);
  display: flex;
  flex-direction: column;
}

.panel-header {
  height: 32px;
  background-color: rgba(27, 32, 42, 0.5);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 12px;
  font-size: 13px;
}

.panel-title {
  color: var(--primary-color);
  font-weight: 600;
}

.panel-actions {
  display: flex;
  gap: 8px;
}

/* Panel Body Base */
.panel-body {
  flex: 1;
  overflow-y: auto;
}

/* Buttons Styling */
button {
  background-color: var(--panel-header-bg);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 2px 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  border-radius: 2px;
}

button:hover:not(:disabled) {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.btn-primary {
  background-color: rgba(102, 252, 241, 0.05);
  border-color: var(--primary-dim);
  color: var(--primary-color);
  font-weight: bold;
}

.btn-primary:hover:not(:disabled) {
  background-color: rgba(102, 252, 241, 0.15);
  box-shadow: 0 0 6px rgba(102, 252, 241, 0.3);
}

.btn-danger {
  background-color: rgba(255, 51, 102, 0.05);
  border-color: rgba(255, 51, 102, 0.5);
  color: var(--danger-color);
}

.btn-danger:hover:not(:disabled) {
  background-color: rgba(255, 51, 102, 0.15);
  box-shadow: 0 0 6px rgba(255, 51, 102, 0.3);
}

/* File explorer tree styles */
#file-list {
  list-style: none;
  padding: 8px 0;
}

.file-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 12px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-color);
}

.file-item:hover {
  background-color: rgba(102, 252, 241, 0.06);
}

.file-item.active {
  background-color: rgba(102, 252, 241, 0.12);
  color: var(--primary-color);
  border-left: 3px solid var(--primary-color);
  padding-left: 9px;
  font-weight: 700;
}

.file-label {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-delete-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  opacity: 0;
  font-size: 12px;
  padding: 0 4px;
}

.file-item:hover .file-delete-btn {
  opacity: 1;
}

.file-item .file-delete-btn:hover {
  color: var(--danger-color);
}

/* Code Editor Specific Panel */
.editor-body {
  display: flex;
  position: relative;
  background-color: #0d0f13;
}

.line-numbers {
  width: 45px;
  padding: 8px 8px 8px 0;
  text-align: right;
  color: #3b4252;
  border-right: 1px solid var(--border-color);
  user-select: none;
  font-size: 13px;
  line-height: 1.6;
  overflow: hidden;
}

#code-editor {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  color: #e5e9f0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  padding: 8px 12px;
  overflow-y: auto;
  white-space: pre;
  tab-size: 4;
}

/* Terminal Panel Specific */
.terminal-body {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  background-color: #090a0d;
}

.terminal-line {
  white-space: pre-wrap;
  word-break: break-all;
}

.stdout-line {
  color: #ebcb8b; /* Soft yellow stdout */
}

.stderr-line {
  color: var(--danger-color);
}

.system-line {
  color: var(--text-dim);
}

.prompt-line {
  color: var(--primary-color);
}

.input-line {
  color: var(--success-color);
}

/* Terminal Interactive Input Row */
#terminal-input-row {
  display: flex;
  align-items: center;
  background-color: #090a0d;
  padding: 4px 12px 12px 12px;
  gap: 8px;
}

#terminal-prompt {
  color: var(--warning-color);
  font-weight: bold;
}

#terminal-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--success-color);
  font-family: var(--font-mono);
  font-size: 13px;
}

/* Hidden elements */
.hidden {
  display: none !important;
}

/* Bottom Footer bar */
#tui-footer {
  height: 28px;
  background-color: var(--panel-header-bg);
  border-top: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 16px;
  font-size: 12px;
  gap: 16px;
}

.footer-item {
  color: var(--text-dim);
}

.shortcut {
  background-color: var(--border-color);
  color: var(--primary-color);
  padding: 1px 5px;
  border-radius: 2px;
  font-weight: bold;
}

.footer-version {
  margin-left: auto;
  color: var(--text-dim);
}

/* Custom Scrollbars to keep retro TUI feel */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--panel-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
}

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

/* Overlay Dialog Boxes */
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(7, 8, 10, 0.85);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.loading-box {
  background-color: var(--panel-bg);
  border: 2px solid var(--primary-color);
  padding: 32px;
  width: 450px;
  text-align: center;
  box-shadow: 0 0 20px rgba(102, 252, 241, 0.25);
  border-radius: 4px;
}

.loading-title {
  color: var(--primary-color);
  font-size: 20px;
  margin-bottom: 12px;
  letter-spacing: 2px;
  text-shadow: 0 0 8px rgba(102, 252, 241, 0.5);
}

.loading-sub {
  color: var(--text-color);
  font-size: 12px;
  margin-bottom: 24px;
}

.progress-bar-container {
  height: 12px;
  background-color: var(--panel-header-bg);
  border: 1px solid var(--border-color);
  margin-bottom: 16px;
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--primary-color);
  box-shadow: 0 0 8px var(--primary-color);
  transition: width 0.2s ease;
}

.loading-details {
  color: var(--text-dim);
  font-size: 11px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(102, 252, 241, 0.1);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  margin: 0 auto 20px auto;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Dialog prompt boxes */
.dialog-box {
  background-color: var(--panel-bg);
  border: 2px solid var(--border-color);
  width: 380px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.7);
  border-radius: 4px;
}

.dialog-header {
  background-color: var(--panel-header-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 16px;
  font-weight: bold;
  color: var(--primary-color);
  font-size: 13px;
}

.dialog-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dialog-body label {
  font-size: 12px;
  color: var(--text-dim);
}

.dialog-body input {
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  outline: none;
  border-radius: 2px;
}

.dialog-body input:focus {
  border-color: var(--primary-color);
}

.dialog-error {
  font-size: 11px;
  color: var(--danger-color);
  margin-top: 4px;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 16px;
  background-color: rgba(27, 32, 42, 0.3);
  border-top: 1px solid var(--border-color);
}

#code-editor, .terminal-body {
  user-select: text;
  -webkit-user-select: text;
}

/* Warning/Test Button */
.btn-warning {
  background-color: rgba(255, 183, 0, 0.05);
  border-color: rgba(255, 183, 0, 0.5);
  color: var(--warning-color);
  font-weight: bold;
}

.btn-warning:hover:not(:disabled) {
  background-color: rgba(255, 183, 0, 0.15);
  box-shadow: 0 0 6px rgba(255, 183, 0, 0.3);
}

/* Test dialog overrides */
.test-dialog-box {
  width: 480px;
  border-color: var(--warning-color) !important;
  box-shadow: 0 0 20px rgba(255, 183, 0, 0.15);
}

.test-header-status {
  font-size: 13px;
  border-bottom: 1px dashed var(--border-color);
  padding-bottom: 8px;
  margin-bottom: 12px;
  color: var(--text-dim);
}

.text-primary-color {
  color: var(--primary-color);
  font-weight: bold;
}

.test-spinner-box {
  text-align: center;
  padding: 24px 0;
  font-size: 12px;
  color: var(--text-dim);
}

.test-loading-text {
  margin-top: 12px;
}

.test-outcome-title {
  font-size: 16px;
  font-weight: bold;
  padding: 6px 12px;
  border-radius: 2px;
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.test-outcome-title.pass {
  background-color: rgba(0, 255, 102, 0.15);
  color: var(--success-color);
  border: 1px solid var(--success-color);
  text-shadow: 0 0 4px var(--success-color);
}

.test-outcome-title.fail {
  background-color: rgba(255, 51, 102, 0.15);
  color: var(--danger-color);
  border: 1px solid var(--danger-color);
  text-shadow: 0 0 4px var(--danger-color);
}

.test-outcome-title.error {
  background-color: rgba(255, 183, 0, 0.15);
  color: var(--warning-color);
  border: 1px solid var(--warning-color);
  text-shadow: 0 0 4px var(--warning-color);
}

.test-outcome-details {
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  padding: 12px;
  font-size: 12px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 180px;
  overflow-y: auto;
}

/* ===== Collapsible File Explorer (VS Code-style) ===== */
.explorer-toggle-btn {
  background: transparent;
  border: none;
  color: var(--primary-dim);
  font-size: 14px;
  padding: 0 4px;
  cursor: pointer;
  transition: transform 0.2s ease, color 0.2s ease;
  flex-shrink: 0;
  line-height: 1;
  min-width: 44px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: rgba(102, 252, 241, 0.15);
  touch-action: manipulation;
}

.explorer-toggle-btn:hover {
  color: var(--primary-color) !important;
  border: none !important;
}

#panel-explorer {
  transition: width 0.2s ease;
  overflow: hidden;
  flex-shrink: 0;
}

#panel-explorer.explorer-collapsed {
  width: 44px;
}

#panel-explorer.explorer-collapsed .panel-title,
#panel-explorer.explorer-collapsed .panel-actions,
#panel-explorer.explorer-collapsed .panel-body {
  display: none;
}

#panel-explorer.explorer-collapsed .panel-header {
  justify-content: center;
  padding: 0;
}



/* ===== Mobile Landscape Media Query ===== */
@media screen and (max-height: 500px) and (orientation: landscape) {
  #tui-header {
    height: 30px;
    font-size: 12px;
    padding: 0 8px;
  }

  #tui-footer {
    height: 24px;
    font-size: 11px;
    padding: 0 8px;
    gap: 6px;
    overflow-x: auto;
    white-space: nowrap;
  }

  /* Hide verbose footer shortcuts on small screens */
  #tui-footer .footer-item:nth-child(n+4) {
    display: none;
  }

  #panel-explorer {
    width: 200px;
  }

  #panel-explorer.explorer-collapsed {
    width: 44px;
  }

  #panel-editor {
    min-height: 120px;
  }

  #panel-terminal {
    min-height: 100px;
    height: 35%;
  }

  #panel-split-right {
    overflow-y: auto;
  }

  .panel-header {
    height: 28px;
    font-size: 11px;
    padding: 0 6px;
  }

  /* Compact editor action buttons */
  .panel-actions {
    gap: 4px;
  }

  .panel-actions button {
    font-size: 11px;
    padding: 1px 5px;
  }

  /* Truncate panel titles to prevent overflow */
  .panel-title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
    flex-shrink: 1;
  }

  body {
    font-size: 13px;
  }

  /* Hide keyboard shortcut hints - phones don't have F-keys */
  .shortcut-hint {
    display: none;
  }
}

/* Even smaller landscape screens auto-collapse explorer */
@media screen and (max-height: 450px) and (orientation: landscape) {
  #panel-explorer:not(.explorer-expanded-override) {
    width: 44px;
  }

  #panel-explorer:not(.explorer-expanded-override) .panel-title,
  #panel-explorer:not(.explorer-expanded-override) .panel-actions,
  #panel-explorer:not(.explorer-expanded-override) .panel-body {
    display: none;
  }

  #panel-explorer:not(.explorer-expanded-override) .panel-header {
    justify-content: center;
    padding: 0;
  }


}