/* Reset and Base Styles */
:root {
  --primary-color: #00ff41;
  --secondary-color: var(--secondary-color);
  --bg-primary: #0a1a20;
  --bg-secondary: #1a2332;
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
}

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

body {
  font-family: "Fira Code", "Courier New", monospace;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
  color: var(--primary-color);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Background Matrix Effect */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(
    circle at 1px 1px,
    rgba(0, 255, 65, 0.1) 1px,
    transparent 0
  );
  background-size: 20px 20px;
  animation: matrix-scroll 20s linear infinite;
  z-index: -1;
  pointer-events: none;
}

@keyframes matrix-scroll {
  0% {
    transform: translateY(0px);
  }
  100% {
    transform: translateY(20px);
  }
}

/* Terminal Container */
.terminal-container {
  max-width: 1400px;
  margin: 20px auto;
  background: rgba(10, 20, 30, 0.95);
  border-radius: 8px;
  box-shadow: 0 0 30px rgba(0, 255, 65, 0.2),
    inset 0 0 0 1px rgba(0, 255, 65, 0.3);
  backdrop-filter: blur(10px);
  min-height: calc(100vh - 40px);
  overflow: hidden;
  position: relative;
}

/* Terminal Header */
.terminal-header {
  background: linear-gradient(90deg, #1a2332 0%, #2a3442 100%);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(0, 255, 65, 0.3);
  position: relative;
}

.terminal-controls {
  display: flex;
  gap: 8px;
}

.control {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
}

.control.close {
  background: #ff5f57;
}
.control.minimize {
  background: #ffbd2e;
}
.control.maximize {
  background: #28ca42;
}

.control:hover {
  transform: scale(1.2);
  box-shadow: 0 0 10px currentColor;
}

.terminal-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 14px;
  color: var(--primary-color);
}

.terminal-icon {
  background: #00ff41;
  color: #0a1a20;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: bold;
}

.terminal-stats {
  display: flex;
  gap: 20px;
  font-size: 12px;
  color: var(--secondary-color);
}

/* Terminal Content */
.terminal-content {
  padding: 20px;
  min-height: calc(100vh - 100px);
  position: relative;
}

/* Screen Management */
.screen {
  display: none;
  animation: fadeIn 0.5s ease-in-out;
}

.screen.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ASCII Art */
.ascii-art {
  text-align: center;
  margin-bottom: 30px;
}

.ascii-art pre {
  color: var(--primary-color);
  font-size: 12px;
  line-height: 1.2;
  text-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
}

/* Welcome Screen */
.welcome-text {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.typing-text {
  font-size: 16px;
  margin-bottom: 20px;
  min-height: 24px;
  color: #cccccc;
  opacity: 0;
  animation: typeIn 2s ease-in-out forwards;
}

@keyframes typeIn {
  0% {
    opacity: 0;
  }
  50% {
    opacity: 0.5;
  }
  100% {
    opacity: 1;
  }
}

.menu-options {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  align-items: center;
}

/* Buttons */
.terminal-button {
  background: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  padding: 12px 24px;
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 200px;
  justify-content: flex-start;
}

.terminal-button:hover {
  background: rgba(0, 255, 65, 0.1);
  box-shadow: 0 0 20px rgba(0, 255, 65, 0.3);
  transform: translateX(5px);
}

.terminal-button:active {
  transform: translateX(5px) scale(0.98);
}

.terminal-button.secondary {
  border-color: var(--secondary-color);
  color: var(--secondary-color);
}

.terminal-button.secondary:hover {
  background: rgba(0, 204, 255, 0.1);
  box-shadow: 0 0 20px rgba(0, 204, 255, 0.4);
}

.prompt {
  color: #ffaa00;
  font-weight: bold;
}

/* Game Screen */
.challenge-header {
  margin-bottom: 30px;
  padding: 20px;
  background: rgba(0, 255, 65, 0.05);
  border: 1px solid rgba(0, 255, 65, 0.2);
  border-radius: 6px;
}

.challenge-info h2 {
  color: var(--primary-color);
  margin-bottom: 10px;
  font-size: 18px;
}

.challenge-info p {
  color: #cccccc;
  margin-bottom: 15px;
  line-height: 1.5;
}

.challenge-stats {
  display: flex;
  gap: 30px;
  font-size: 14px;
}

.challenge-stats span {
  padding: 5px 10px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.lives {
  color: #ff6b6b;
}
.hints {
  color: #ffd93d;
}
.timer {
  color: #6bcf7f;
}

/* File System */
.file-system {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 20px;
  margin-bottom: 30px;
  height: 400px;
}

.file-tree {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(0, 255, 65, 0.3);
  border-radius: 6px;
  padding: 15px;
  overflow-y: auto;
}

.tree-header {
  color: var(--primary-color);
  font-weight: bold;
  margin-bottom: 10px;
  border-bottom: 1px solid rgba(0, 255, 65, 0.3);
  padding-bottom: 5px;
}

.file-item {
  padding: 5px 0;
  cursor: pointer;
  color: #cccccc;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.file-item:hover {
  color: var(--primary-color);
  transform: translateX(5px);
}

.file-item.active {
  color: var(--primary-color);
  background: rgba(0, 255, 65, 0.1);
  padding-left: 10px;
  border-radius: 4px;
}

.file-icon {
  width: 16px;
  text-align: center;
}

.file-content {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(0, 255, 65, 0.3);
  border-radius: 6px;
  display: flex;
  flex-direction: column;
}

.file-header {
  background: rgba(0, 255, 65, 0.1);
  padding: 10px 15px;
  border-bottom: 1px solid rgba(0, 255, 65, 0.3);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: bold;
  color: var(--primary-color);
}

.hint-btn {
  background: transparent;
  border: 1px solid #ffd93d;
  color: #ffd93d;
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.3s ease;
}

.hint-btn:hover {
  background: rgba(255, 217, 61, 0.1);
  box-shadow: 0 0 10px rgba(255, 217, 61, 0.3);
}

.file-viewer {
  flex: 1;
  overflow: auto;
  padding: 15px;
}

.file-viewer pre {
  color: #cccccc;
  line-height: 1.6;
  font-size: 13px;
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* Command Section */
.command-section {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(0, 255, 65, 0.3);
  border-radius: 6px;
  padding: 20px;
  margin-bottom: 30px;
}

.command-prompt {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.prompt-symbol {
  color: var(--primary-color);
  font-weight: bold;
  white-space: nowrap;
}

.command-input {
  flex: 1;
  background: transparent;
  border: none;
  color: #ffffff;
  font-family: inherit;
  font-size: 14px;
  padding: 10px;
  outline: none;
  border-bottom: 2px solid rgba(0, 255, 65, 0.3);
  transition: border-color 0.3s ease;
}

.command-input:focus {
  border-bottom-color: #00ff41;
  box-shadow: 0 2px 10px rgba(0, 255, 65, 0.2);
}

.command-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.execute-btn {
  background: #00ff41;
  color: #0a1a20;
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-family: inherit;
  font-weight: bold;
  transition: all 0.3s ease;
}

.execute-btn:hover {
  background: #00cc33;
  box-shadow: 0 0 15px rgba(0, 255, 65, 0.5);
  transform: translateY(-2px);
}

.command-output {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  padding: 15px;
  min-height: 150px;
  max-height: 300px;
  overflow-y: auto;
  font-family: inherit;
}

.output-line {
  margin-bottom: 5px;
  font-size: 13px;
  line-height: 1.4;
}

.output-line.success {
  color: #6bcf7f;
}
.output-line.error {
  color: #ff6b6b;
}
.output-line.warning {
  color: #ffd93d;
}
.output-line.info {
  color: #74c0fc;
}

/* Challenge Controls */
.challenge-controls {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Tutorial Screen */
.tutorial-content {
  max-width: 800px;
  margin: 0 auto;
}

.tutorial-content h2 {
  color: var(--primary-color);
  margin-bottom: 30px;
  text-align: center;
  font-size: 24px;
}

.tutorial-content h3 {
  color: var(--secondary-color);
  margin: 25px 0 15px;
  font-size: 18px;
}

.tutorial-content p {
  color: #cccccc;
  line-height: 1.6;
  margin-bottom: 15px;
}

.code-example {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(0, 255, 65, 0.3);
  border-radius: 4px;
  padding: 15px;
  margin: 15px 0;
}

.code-example code {
  color: var(--primary-color);
  font-family: inherit;
}

.options-list {
  margin: 20px 0;
}

.option {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 10px;
  margin: 8px 0;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  border-left: 3px solid #00ff41;
}

.option code {
  background: rgba(0, 255, 65, 0.1);
  color: var(--primary-color);
  padding: 4px 8px;
  border-radius: 3px;
  font-weight: bold;
  min-width: 40px;
  text-align: center;
}

.option span {
  color: #cccccc;
}

/* Leaderboard */
.leaderboard-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.leaderboard-content h2 {
  color: var(--primary-color);
  margin-bottom: 30px;
  font-size: 24px;
}

.leaderboard-list {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(0, 255, 65, 0.3);
  border-radius: 6px;
  padding: 20px;
  margin-bottom: 30px;
}

.leaderboard-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  margin: 8px 0;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  transition: all 0.3s ease;
}

.leaderboard-item:hover {
  background: rgba(0, 255, 65, 0.1);
  transform: translateX(5px);
}

.leaderboard-rank {
  font-weight: bold;
  color: #ffd93d;
  min-width: 40px;
}

.leaderboard-name {
  flex: 1;
  text-align: left;
  margin-left: 15px;
  color: #cccccc;
}

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

/* Settings Screen */
.settings-content {
  max-width: 900px;
  margin: 0 auto;
}

.settings-content h2 {
  color: var(--primary-color);
  margin-bottom: 30px;
  text-align: center;
  font-size: 24px;
}

.settings-content > p {
  color: #cccccc;
  text-align: center;
  margin-bottom: 40px;
  font-size: 16px;
}

.settings-section {
  margin-bottom: 40px;
  padding: 25px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(0, 255, 65, 0.2);
  border-radius: 8px;
}

.settings-section h3 {
  color: var(--secondary-color);
  margin-bottom: 20px;
  font-size: 18px;
  border-bottom: 1px solid rgba(0, 204, 255, 0.3);
  padding-bottom: 10px;
}

.setting-item {
  margin-bottom: 25px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.setting-item label {
  color: var(--primary-color);
  font-weight: bold;
  font-size: 14px;
}

.setting-control {
  display: flex;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

.setting-btn {
  background: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  width: 35px;
  height: 35px;
  border-radius: 4px;
  cursor: pointer;
  font-family: inherit;
  font-size: 18px;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.setting-btn:hover {
  background: rgba(0, 255, 65, 0.1);
  box-shadow: 0 0 15px rgba(0, 255, 65, 0.3);
  transform: scale(1.1);
}

.setting-btn:active {
  transform: scale(0.95);
}

.setting-value {
  background: rgba(0, 255, 65, 0.1);
  border: 1px solid #00ff41;
  padding: 8px 16px;
  border-radius: 4px;
  color: var(--primary-color);
  font-weight: bold;
  min-width: 40px;
  text-align: center;
  font-family: inherit;
}

.setting-select {
  background: rgba(0, 0, 0, 0.5);
  border: 2px solid var(--primary-color);
  color: #ffffff;
  padding: 8px 12px;
  border-radius: 4px;
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s ease;
  min-width: 200px;
}

.setting-select:hover {
  border-color: var(--secondary-color);
  box-shadow: 0 0 10px rgba(0, 255, 65, 0.2);
}

.setting-select:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 15px rgba(0, 255, 65, 0.4);
}

.setting-select option {
  background: #1a2332;
  color: #ffffff;
  padding: 5px;
}

.setting-checkbox {
  width: 20px;
  height: 20px;
  accent-color: #00ff41;
  cursor: pointer;
  transform: scale(1.2);
}

.setting-description {
  color: #999999;
  font-size: 12px;
  font-style: italic;
  flex-basis: 100%;
  margin-top: 5px;
}

.settings-actions {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 40px;
  padding-top: 30px;
  border-top: 1px solid rgba(0, 255, 65, 0.3);
}

/* About Screen */
.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-content h2 {
  color: var(--primary-color);
  margin-bottom: 30px;
  text-align: center;
  font-size: 24px;
}

.about-content h3 {
  color: var(--secondary-color);
  margin: 25px 0 15px;
  font-size: 18px;
}

.about-content p,
.about-content li {
  color: #cccccc;
  line-height: 1.6;
  margin-bottom: 10px;
}

.about-content ul,
.about-content ol {
  margin-left: 20px;
  margin-bottom: 20px;
}

.credits {
  text-align: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(0, 255, 65, 0.3);
}

.credits p {
  color: #999;
  font-size: 14px;
}

/* Modals */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  animation: modalFadeIn 0.3s ease-in-out;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal-content {
  background: rgba(10, 20, 30, 0.95);
  border: 2px solid var(--primary-color);
  border-radius: 8px;
  padding: 30px;
  text-align: center;
  max-width: 500px;
  min-width: 400px;
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    transform: translateY(-50px) scale(0.9);
  }
  to {
    transform: translateY(0) scale(1);
  }
}

.modal-content.success {
  border-color: #6bcf7f;
}

.modal-content.gameover {
  border-color: #ff6b6b;
}

.modal-content h2 {
  margin-bottom: 20px;
  font-size: 24px;
}

.success-stats,
.final-stats {
  margin: 20px 0;
  padding: 15px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 6px;
}

.success-stats p,
.final-stats p {
  margin: 8px 0;
  font-size: 16px;
}

.modal-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  margin-top: 20px;
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 20, 30, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 1;
  transition: opacity 0.8s ease-out;
}

.loading-overlay.hidden {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

.loading-overlay.fade-out {
  opacity: 0;
}

.loading-content {
  text-align: center;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(0, 255, 65, 0.3);
  border-top: 3px solid #00ff41;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

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

.loading-text {
  color: var(--primary-color);
  font-size: 16px;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .file-system {
    grid-template-columns: 200px 1fr;
    height: 350px;
  }

  .terminal-container {
    margin: 10px;
    min-height: calc(100vh - 20px);
  }
}

/* Animations */
@keyframes shake {
  0% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-10px);
  }
  50% {
    transform: translateX(10px);
  }
  75% {
    transform: translateX(-5px);
  }
  100% {
    transform: translateX(0);
  }
}

@keyframes levelBackTransition {
  0% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.95);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.level-back-transition {
  animation: levelBackTransition 1s ease-in-out;
}

@media (max-width: 768px) {
  .file-system {
    grid-template-columns: 1fr;
    height: auto;
  }

  .file-tree {
    height: 200px;
  }

  .file-content {
    height: 300px;
  }

  .terminal-header {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }

  .terminal-stats {
    justify-content: center;
  }

  .challenge-controls {
    flex-direction: column;
    align-items: center;
  }

  .command-prompt {
    flex-direction: column;
    gap: 15px;
  }

  .modal-content {
    margin: 20px;
    min-width: auto;
    max-width: calc(100% - 40px);
  }

  .modal-buttons {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .terminal-content {
    padding: 15px;
  }

  .menu-options .terminal-button {
    min-width: 150px;
    font-size: 12px;
    padding: 10px 16px;
  }

  .ascii-art pre {
    font-size: 10px;
  }

  .welcome-text .typing-text {
    font-size: 14px;
  }
}

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

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.3);
}

::-webkit-scrollbar-thumb {
  background: rgba(0, 255, 65, 0.5);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 255, 65, 0.7);
}

/* Selection */
::selection {
  background: rgba(0, 255, 65, 0.3);
  color: #ffffff;
}