/**
 * HackNet: Shadow Protocol - Main Stylesheet
 * Contains CSS variables, global resets, and base layout
 */

/* ========================================
   CSS VARIABLES - Color Scheme & Theme
   ======================================== */
:root {
  /* Primary Theme Colors */
  --color-bg: #0a0a0a;
  --color-terminal-bg: #0d1117;
  --color-text: #00ff00;
  --color-text-dim: #00aa00;
  --color-text-bright: #33ff33;

  /* Functional Colors */
  --color-error: #ff3333;
  --color-warning: #ffaa00;
  --color-success: #00ff00;
  --color-info: #00aaff;

  /* Special Effect Colors */
  --color-trace: #ff0000;
  --color-hack: #ff00ff;
  --color-matrix: #00ff00;
  --color-highlight: #00ffff;

  /* Terminal Colors */
  --terminal-prompt: #00aaff;
  --terminal-path: #aa00ff;
  --terminal-cursor: #00ff00;
  --terminal-selection: rgba(0, 255, 0, 0.3);

  /* UI Colors */
  --color-border: #00ff00;
  --color-border-dim: #004400;
  --color-overlay: rgba(0, 0, 0, 0.85);
  --color-glass: rgba(13, 17, 23, 0.95);

  /* Status Colors */
  --color-connected: #00ff00;
  --color-disconnected: #666666;
  --color-danger: #ff0000;

  /* Font Family */
  --font-mono: "Fira Code", "Consolas", "Monaco", "Courier New", monospace;
  --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, sans-serif;

  /* Font Sizes */
  --font-size-xs: 10px;
  --font-size-sm: 12px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 20px;
  --font-size-xxl: 24px;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  /* Border Radius */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;

  /* Transitions */
  --transition-fast: 0.1s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Z-Index Layers */
  --z-background: -1;
  --z-base: 0;
  --z-terminal: 10;
  --z-statusbar: 20;
  --z-overlay: 100;
  --z-modal: 200;
  --z-notification: 300;
  --z-loading: 1000;
}

/* ========================================
   FONT FACE - Fira Code (using local system fonts only)
   Note: The font is loaded via Google Fonts in index.html
   If not available, fallback to system monospace fonts
   ======================================== */
/* Local system font fallback - no external file needed */

/* ========================================
   GLOBAL RESET
   ======================================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-mono);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow: hidden;
  min-height: 100vh;
  min-height: 100dvh;
}

/* Remove default focus outline and add custom */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-highlight);
  outline-offset: 2px;
}

/* ========================================
   SELECTION STYLES
   ======================================== */
::selection {
  background-color: var(--terminal-selection);
  color: var(--color-text-bright);
}

::-moz-selection {
  background-color: var(--terminal-selection);
  color: var(--color-text-bright);
}

/* ========================================
   SCROLLBAR STYLES
   ======================================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

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

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

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

/* ========================================
   GAME CONTAINER LAYOUT
   ======================================== */
#game-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ========================================
   MATRIX BACKGROUND
   ======================================== */
#matrix-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-background);
  opacity: 0.15;
  pointer-events: none;
}

/* ========================================
   STATUS BAR
   ======================================== */
#status-bar {
  position: relative;
  z-index: var(--z-statusbar);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-terminal-bg);
  border-bottom: 1px solid var(--color-border-dim);
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.status-left,
.status-center,
.status-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.status-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.status-label {
  color: var(--color-text-dim);
  text-transform: uppercase;
}

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

/* Connection Status */
#connection-status {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-dim);
}

#connection-status.connected {
  border-color: var(--color-connected);
}

#connection-status.connected .status-indicator {
  background-color: var(--color-connected);
  box-shadow: 0 0 8px var(--color-connected);
}

#connection-status.disconnected .status-indicator {
  background-color: var(--color-disconnected);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

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

/* Trace Bar */
.trace-bar {
  width: 60px;
  height: 6px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-dim);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.trace-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-warning), var(--color-trace));
  transition: width var(--transition-fast);
}

#trace-level.danger .trace-fill {
  animation: trace-flash 0.5s infinite;
}

@keyframes trace-flash {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* ========================================
   LOADING SCREEN
   ======================================== */
#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-loading);
  background-color: var(--color-bg);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity var(--transition-slow);
}

#loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

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

.ascii-logo {
  font-size: var(--font-size-xs);
  color: var(--color-text);
  line-height: 1.1;
  white-space: pre;
  margin-bottom: var(--spacing-md);
  text-shadow: 0 0 10px var(--color-text);
}

.loading-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-dim);
  letter-spacing: 8px;
  margin-bottom: var(--spacing-xl);
}

.loading-bar {
  width: 300px;
  height: 4px;
  background-color: var(--color-border-dim);
  margin: 0 auto var(--spacing-md);
  overflow: hidden;
}

.loading-progress {
  height: 100%;
  width: 0%;
  background-color: var(--color-text);
  transition: width var(--transition-normal);
  box-shadow: 0 0 10px var(--color-text);
}

.loading-text {
  color: var(--color-text-dim);
  font-size: var(--font-size-sm);
  animation: blink 1s infinite;
}

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

/* ========================================
   START MENU
   ======================================== */
#start-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  background-color: var(--color-bg);
  display: flex;
  justify-content: center;
  align-items: center;
}

#start-menu.hidden {
  display: none;
}

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

.menu-logo .ascii-logo.small {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

.menu-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-dim);
  letter-spacing: 4px;
  margin-bottom: var(--spacing-xl);
}

.menu-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.menu-btn {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--spacing-sm);
  width: 250px;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: transparent;
  border: 1px solid var(--color-border-dim);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: var(--font-size-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.menu-btn:hover:not(:disabled) {
  background-color: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
  box-shadow: 0 0 20px var(--color-text);
}

.menu-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.menu-btn.primary {
  background-color: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}

.menu-btn.primary:hover {
  box-shadow: 0 0 30px var(--color-text);
}

.btn-icon {
  color: var(--color-text-dim);
}

.menu-btn:hover .btn-icon {
  color: var(--color-bg);
}

.menu-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 250px;
  margin: 0 auto;
}

.version {
  color: var(--color-text-dim);
  font-size: var(--font-size-xs);
}

.language-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  cursor: pointer;
  padding: var(--spacing-xs);
  transition: color var(--transition-fast);
}

.lang-btn:hover,
.lang-btn.active {
  color: var(--color-text);
}

.lang-separator {
  color: var(--color-text-dim);
}

/* ========================================
   MODAL STYLES
   ======================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  background-color: var(--color-overlay);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-md);
}

.modal.hidden {
  display: none;
}

.modal-content {
  background-color: var(--color-terminal-bg);
  border: 1px solid var(--color-border);
  max-width: 400px;
  width: 100%;
  box-shadow: 0 0 30px rgba(0, 255, 0, 0.3);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border-dim);
}

.modal-header h2 {
  font-size: var(--font-size-lg);
  color: var(--color-text);
  font-weight: normal;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--color-text-dim);
  font-size: var(--font-size-xl);
  cursor: pointer;
  padding: 0;
  line-height: 1;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--color-error);
}

.modal-body {
  padding: var(--spacing-md);
}

/* ========================================
   FORM ELEMENTS
   ======================================== */
.input-group {
  margin-bottom: var(--spacing-md);
}

.input-group label {
  display: block;
  color: var(--color-text-dim);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
}

.input-group input[type="text"] {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-dim);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: var(--font-size-md);
  transition: border-color var(--transition-fast);
}

.input-group input[type="text"]:focus {
  border-color: var(--color-text);
  box-shadow: 0 0 10px rgba(0, 255, 0, 0.3);
}

.input-group input[type="text"]::placeholder {
  color: var(--color-text-dim);
  opacity: 0.5;
}

.input-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-dim);
  margin-top: var(--spacing-xs);
}

/* Settings Controls */
.setting-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-border-dim);
}

.setting-group:last-child {
  border-bottom: none;
}

.setting-label {
  color: var(--color-text);
  font-size: var(--font-size-sm);
}

.setting-value {
  color: var(--color-text-dim);
  font-size: var(--font-size-sm);
  min-width: 40px;
  text-align: right;
}

/* Range Slider */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100px;
  height: 4px;
  background: var(--color-border-dim);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  background: var(--color-text);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 8px var(--color-text);
}

input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  background: var(--color-text);
  border-radius: 50%;
  cursor: pointer;
  border: none;
  box-shadow: 0 0 8px var(--color-text);
}

/* Toggle Switch */
.toggle {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-border-dim);
  transition: var(--transition-fast);
  border-radius: 24px;
}

.toggle-slider::before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: var(--color-bg);
  transition: var(--transition-fast);
  border-radius: 50%;
}

.toggle input:checked + .toggle-slider {
  background-color: var(--color-text);
  box-shadow: 0 0 10px var(--color-text);
}

.toggle input:checked + .toggle-slider::before {
  transform: translateX(20px);
}

/* ========================================
   NOTIFICATION AREA
   ======================================== */
#notification-area {
  position: fixed;
  top: 60px;
  right: var(--spacing-md);
  z-index: var(--z-notification);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 350px;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.hidden {
  display: none !important;
}

.invisible {
  visibility: hidden;
}

.text-error {
  color: var(--color-error) !important;
}

.text-success {
  color: var(--color-success) !important;
}

.text-warning {
  color: var(--color-warning) !important;
}

.text-info {
  color: var(--color-info) !important;
}

.text-dim {
  color: var(--color-text-dim) !important;
}

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

/* Glow effect */
.glow {
  text-shadow: 0 0 10px currentColor;
}

.glow-strong {
  text-shadow: 0 0 20px currentColor, 0 0 40px currentColor;
}

/* Noscript Warning */
.noscript-warning {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-bg);
  color: var(--color-error);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--spacing-xl);
}

.noscript-warning h1 {
  font-size: var(--font-size-xxl);
  margin-bottom: var(--spacing-md);
}

/* ========================================
   ABOUT MODAL
   ======================================== */
#about-modal .modal-content {
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.about-content {
  background: linear-gradient(135deg, var(--color-terminal-bg) 0%, #0a1015 100%);
}

.about-logo {
  text-align: center;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-border-dim);
  margin-bottom: var(--spacing-md);
}

.about-logo .ascii-logo.small {
  font-size: 8px;
  line-height: 1.1;
  color: var(--color-text);
  text-shadow: 0 0 10px var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.about-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-dim);
  letter-spacing: 6px;
  margin-bottom: var(--spacing-xs);
}

.about-version {
  font-size: var(--font-size-xs);
  color: var(--color-text-dim);
  opacity: 0.7;
}

.about-section {
  margin-bottom: var(--spacing-lg);
}

.about-heading {
  font-size: var(--font-size-sm);
  color: var(--color-highlight);
  margin-bottom: var(--spacing-sm);
  font-weight: normal;
  letter-spacing: 2px;
}

.credits-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.credit-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(0, 255, 0, 0.05);
  border-left: 2px solid var(--color-text-dim);
}

.credit-role {
  font-size: var(--font-size-xs);
  color: var(--color-text-dim);
  text-transform: uppercase;
}

.credit-name {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  font-weight: bold;
}

.about-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
  line-height: 1.7;
  text-align: justify;
}

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.tech-item {
  font-size: var(--font-size-xs);
  color: var(--color-bg);
  background: var(--color-text);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.about-thanks {
  font-size: var(--font-size-xs);
  color: var(--color-text-dim);
  line-height: 1.6;
  font-style: italic;
  text-align: center;
}

.about-footer {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border-dim);
}

.about-footer p {
  font-size: var(--font-size-xs);
  color: var(--color-text-dim);
  margin-bottom: var(--spacing-xs);
}

.glitch-text {
  font-size: var(--font-size-md);
  color: var(--color-text);
  font-weight: bold;
  letter-spacing: 4px;
  position: relative;
  animation: glitch 2s infinite;
}

.glitch-text::before,
.glitch-text::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.glitch-text::before {
  animation: glitch-1 0.3s infinite;
  color: var(--color-error);
  z-index: -1;
}

.glitch-text::after {
  animation: glitch-2 0.3s infinite;
  color: var(--color-highlight);
  z-index: -2;
}

@keyframes glitch {
  0%, 90%, 100% {
    opacity: 1;
  }
  92% {
    opacity: 0.8;
  }
  94% {
    opacity: 1;
  }
  96% {
    opacity: 0.9;
  }
}

@keyframes glitch-1 {
  0% {
    clip-path: inset(40% 0 61% 0);
    transform: translate(-2px, -1px);
  }
  20% {
    clip-path: inset(92% 0 1% 0);
    transform: translate(1px, 2px);
  }
  40% {
    clip-path: inset(43% 0 1% 0);
    transform: translate(-1px, 0);
  }
  60% {
    clip-path: inset(25% 0 58% 0);
    transform: translate(2px, 1px);
  }
  80% {
    clip-path: inset(54% 0 7% 0);
    transform: translate(-2px, 1px);
  }
  100% {
    clip-path: inset(58% 0 43% 0);
    transform: translate(0, -2px);
  }
}

@keyframes glitch-2 {
  0% {
    clip-path: inset(65% 0 20% 0);
    transform: translate(2px, 1px);
  }
  20% {
    clip-path: inset(10% 0 80% 0);
    transform: translate(-1px, -2px);
  }
  40% {
    clip-path: inset(75% 0 5% 0);
    transform: translate(1px, 0);
  }
  60% {
    clip-path: inset(35% 0 50% 0);
    transform: translate(-2px, -1px);
  }
  80% {
    clip-path: inset(20% 0 70% 0);
    transform: translate(2px, -1px);
  }
  100% {
    clip-path: inset(5% 0 85% 0);
    transform: translate(0, 2px);
  }
}