/* ===========================
   LATTICE DESCENT - Complete Styles v2.0
   Enhanced with backgrounds, glitch effects, diary styles
   =========================== */

/* ============================================
   BASE RESET
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  user-select: none;
}

/* ============================================
   CSS VARIABLES
   ============================================ */

:root {
  --bg: #0a0a0a;
  --fg: #00ff41;
  --fg2: #00ccff;
  --warn: #ff3333;
  --sys: #ffff00;
  --panel: #001a00;
  --glow: 0 0 10px rgba(0, 255, 65, 0.35);
  --glow-warn: 0 0 15px rgba(255, 51, 51, 0.6);
  --glow-sys: 0 0 12px rgba(255, 255, 0, 0.4);
  --bg-opacity: 0.15;
}

/* ============================================
   BODY AND BACKGROUND
   ============================================ */

body {
  font-family: "Courier New", monospace;
  background: var(--bg);
  color: var(--fg);
  height: 100vh;
  overflow: hidden;
  position: relative;
}

body:before {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(rgba(255, 255, 255, 0.02), rgba(0, 0, 0, 0.02)),
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.03),
      rgba(255, 255, 255, 0.03) 1px,
      transparent 2px,
      transparent 3px
    );
  pointer-events: none;
  mix-blend-mode: overlay;
  z-index: 1;
}

/* ============================================
   LED INDICATORS
   ============================================ */

.led {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin: 0 4px;
  position: relative;
  vertical-align: middle;
}

.led.green {
  background: #00ff41;
  box-shadow: 0 0 8px #00ff41, inset 0 0 3px #fff;
}

.led.red {
  background: #ff3333;
  box-shadow: 0 0 8px #ff3333, inset 0 0 3px #fff;
}

.led.yellow {
  background: #ffff00;
  box-shadow: 0 0 8px #ffff00, inset 0 0 3px #fff;
}

.led.blue {
  background: #00ccff;
  box-shadow: 0 0 8px #00ccff, inset 0 0 3px #fff;
}

.led.off {
  background: #333;
  box-shadow: none;
}

.led.pulse {
  animation: pulse-led 1.5s infinite;
}

@keyframes pulse-led {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

/* ============================================
   SYMBOLS AND STATUS INDICATORS
   ============================================ */

.symbol {
  display: inline-block;
  font-size: 16px;
  margin: 0 4px;
  vertical-align: middle;
  text-shadow: 0 0 6px currentColor;
}

.symbol.spin {
  animation: spin 3s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.floor-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border: 1px solid var(--fg);
  background: rgba(0, 255, 65, 0.05);
}

.coherence-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.status-symbol {
  font-size: 14px;
  margin-left: 4px;
}

.terminal-prefix {
  color: var(--fg);
  margin-right: 4px;
  text-shadow: var(--glow);
}

.bracket {
  color: var(--fg2);
  font-weight: bold;
}

/* ============================================
   PARTICLES EFFECT
   ============================================ */

.particle {
  position: fixed;
  width: 2px;
  height: 2px;
  background: var(--fg);
  pointer-events: none;
  z-index: 999;
  opacity: 0;
  box-shadow: 0 0 4px var(--fg);
}

.particle.active {
  animation: fall 2s linear forwards;
}

@keyframes fall {
  0% {
    opacity: 1;
    transform: translateY(0) translateX(0);
  }
  100% {
    opacity: 0;
    transform: translateY(100vh) translateX(calc(var(--drift, 0) * 50px));
  }
}

/* ============================================
   BUTTONS
   ============================================ */

.action-btn {
  padding: 10px 20px;
  background: rgba(0, 255, 65, 0.1);
  color: var(--fg);
  border: 1px solid var(--fg);
  cursor: pointer;
  font-family: "Courier New", monospace;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
  font-size: 12px;
}

.action-btn:before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(0, 255, 65, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.action-btn:active:before {
  width: 300px;
  height: 300px;
}

.action-btn:hover {
  background: rgba(0, 255, 65, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 255, 65, 0.2);
}

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

/* ============================================
   STATS DISPLAY
   ============================================ */

.stat {
  background: rgba(0, 255, 65, 0.1);
  padding: 5px 10px;
  border: 1px solid var(--fg);
  transition: all 0.3s;
  font-size: 12px;
}

.stat:hover {
  background: rgba(0, 255, 65, 0.15);
  box-shadow: 0 0 8px rgba(0, 255, 65, 0.3);
}

.number-change {
  display: inline-block;
  animation: numberPop 0.4s ease-out;
}

@keyframes numberPop {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.3);
    color: #ffff00;
  }
  100% {
    transform: scale(1);
  }
}

/* ============================================
   LOADING SCREEN
   ============================================ */

#loadingScreen {
  position: fixed;
  inset: 0;
  background: #000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.loading-text {
  font-size: 24px;
  margin-bottom: 20px;
  animation: pulse 1s infinite;
  text-shadow: var(--glow);
  letter-spacing: 3px;
}

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

.loading-bar {
  width: 300px;
  height: 20px;
  border: 1px solid var(--fg);
  background: #000;
  box-shadow: var(--glow);
}

.loading-progress {
  height: 100%;
  background: var(--fg);
  width: 0%;
  transition: width 0.25s;
  box-shadow: 0 0 10px var(--fg);
}

.load-cta {
  margin-top: 20px;
}

/* ============================================
   GAME CONTAINER
   ============================================ */

#gameContainer {
  display: none;
  flex-direction: column;
  height: 100vh;
}

/* ============================================
   HEADER
   ============================================ */

#header {
  background: var(--panel);
  padding: 10px;
  border-bottom: 2px solid var(--fg);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  z-index: 10;
  position: relative;
}

.stats {
  display: flex;
  gap: 10px;
  font-size: 12px;
  align-items: center;
  flex-wrap: wrap;
}

/* ============================================
   TERMINAL
   ============================================ */

#terminal {
  flex: 1;
  background: #000;
  padding: 20px;
  overflow-y: auto;
  font-size: 14px;
  line-height: 1.6;
  position: relative;
  z-index: 2;
}

/* BACKGROUND IMAGE SYSTEM */
#terminal:after {
  content: "";
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: var(--bg-opacity);
  pointer-events: none;
  z-index: -1;
  filter: grayscale(0.8) contrast(1.4) brightness(0.7);
  mix-blend-mode: screen;
}

/* Floor-specific backgrounds */
#terminal.bg-b1:after {
  background-image: 
    linear-gradient(rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.75)),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0, 255, 65, 0.02) 2px,
      rgba(0, 255, 65, 0.02) 4px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(0, 255, 65, 0.01),
      rgba(0, 255, 65, 0.01) 50px,
      transparent 50px,
      transparent 100px
    ),
    radial-gradient(circle at 70% 30%, rgba(0, 255, 65, 0.05), transparent 40%);
  /* Add real image: url('img/office-abandoned.jpg'), */
}

#terminal.bg-b2:after {
  background-image: 
    linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.6)),
    repeating-linear-gradient(
      90deg,
      rgba(0, 204, 255, 0.03),
      rgba(0, 204, 255, 0.03) 1px,
      transparent 1px,
      transparent 3px
    ),
    repeating-linear-gradient(
      180deg,
      transparent,
      transparent 20px,
      rgba(0, 204, 255, 0.02) 20px,
      rgba(0, 204, 255, 0.02) 21px
    ),
    radial-gradient(circle at 20% 80%, rgba(255, 51, 51, 0.04), transparent 50%);
  /* Add real image: url('img/security-corridor.jpg'), */
}

#terminal.bg-b3:after {
  background-image: 
    linear-gradient(135deg, rgba(0, 0, 0, 0.85) 0%, rgba(0, 20, 10, 0.7) 100%),
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 10px,
      rgba(0, 255, 65, 0.02) 10px,
      rgba(0, 255, 65, 0.02) 11px
    ),
    radial-gradient(ellipse at 50% 50%, rgba(0, 255, 65, 0.08), transparent 60%),
    radial-gradient(circle at 80% 20%, rgba(0, 204, 255, 0.04), transparent 40%);
  /* Add real image: url('img/laboratory.jpg'), */
}

#terminal.bg-b4:after {
  background-image: 
    linear-gradient(rgba(10, 10, 0, 0.8), rgba(0, 0, 0, 0.9)),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 5px,
      rgba(255, 255, 0, 0.02) 5px,
      rgba(255, 255, 0, 0.02) 6px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 5px,
      rgba(255, 255, 0, 0.02) 5px,
      rgba(255, 255, 0, 0.02) 6px
    ),
    radial-gradient(circle at 30% 70%, rgba(255, 170, 0, 0.05), transparent 50%);
  /* Add real image: url('img/maintenance-pipes.jpg'), */
}

#terminal.bg-b5:after {
  background-image: 
    linear-gradient(rgba(0, 0, 0, 0.95), rgba(10, 0, 0, 0.9)),
    repeating-radial-gradient(
      circle at 50% 50%,
      transparent,
      transparent 40px,
      rgba(255, 51, 51, 0.03) 40px,
      rgba(255, 51, 51, 0.03) 41px
    ),
    radial-gradient(ellipse at 50% 50%, rgba(255, 51, 51, 0.06), transparent 70%),
    radial-gradient(circle at 30% 30%, rgba(0, 0, 0, 1), transparent 30%),
    radial-gradient(circle at 70% 70%, rgba(0, 0, 0, 1), transparent 30%);
  /* Add real image: url('img/darkness-void.jpg'), */
  filter: grayscale(1) contrast(2) brightness(0.3);
  animation: b5Pulse 4s ease-in-out infinite;
}

@keyframes b5Pulse {
  0%, 100% {
    opacity: var(--bg-opacity);
  }
  50% {
    opacity: calc(var(--bg-opacity) + 0.1);
  }
}

#terminal:before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 20px;
  background: linear-gradient(to bottom, rgba(0, 255, 65, 0.1), transparent);
  pointer-events: none;
  z-index: 10;
}

.terminal-line {
  margin: 5px 0;
  animation: slideIn 0.3s ease-out;
  position: relative;
  z-index: 5;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ============================================
   TERMINAL MESSAGE TYPES
   ============================================ */

.system-message {
  color: var(--sys);
  font-weight: bold;
  text-shadow: 0 0 8px rgba(255, 255, 0, 0.4);
}

.error-message {
  color: var(--warn);
  text-shadow: 0 0 8px rgba(255, 51, 51, 0.4);
}

.success-message {
  color: var(--fg);
  text-shadow: 0 0 8px rgba(0, 255, 65, 0.4);
}

.npc-message {
  color: var(--fg2);
  padding-left: 20px;
  border-left: 2px solid var(--fg2);
  margin-left: 5px;
}

.thought {
  color: #9cffb5;
  font-style: italic;
}

.hint-message {
  color: #ffaa00;
  font-style: italic;
  text-shadow: 0 0 6px rgba(255, 170, 0, 0.3);
}

/* ============================================
   INPUT AREA
   ============================================ */

#inputArea {
  background: var(--panel);
  padding: 15px;
  border-top: 2px solid var(--fg);
  display: flex;
  gap: 10px;
  align-items: center;
  z-index: 10;
  position: relative;
}

.prompt {
  color: #00ff41;
  display: inline-block;
  min-width: 10px;
  animation: caret 1s step-end infinite;
}

@keyframes caret {
  50% {
    opacity: 0.25;
  }
}

#commandInput {
  flex: 1;
  background: #000;
  color: var(--fg);
  border: 1px solid var(--fg);
  padding: 10px;
  font-family: "Courier New", monospace;
  outline: none;
  box-shadow: var(--glow);
  transition: all 0.3s;
  font-size: 14px;
}

#commandInput:focus {
  border-color: var(--fg2);
  box-shadow: 0 0 12px rgba(0, 204, 255, 0.4);
  background: rgba(0, 255, 65, 0.02);
}

#commandInput.processing {
  animation: processPulse 1s infinite;
}

@keyframes processPulse {
  0%, 100% {
    border-color: var(--fg);
  }
  50% {
    border-color: var(--sys);
  }
}

/* ============================================
   MODALS
   ============================================ */

.modal {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #000;
  border: 2px solid var(--fg);
  padding: 20px;
  z-index: 1000;
  max-width: 90%;
  max-height: 80%;
  overflow-y: auto;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.8);
}

.modal-header {
  border-bottom: 1px solid var(--fg);
  padding-bottom: 10px;
  margin-bottom: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  color: var(--fg);
  text-shadow: var(--glow);
  font-size: 18px;
}

.modal-close {
  cursor: pointer;
  color: #ff3333;
  font-size: 20px;
  font-weight: bold;
  transition: all 0.2s;
}

.modal-close:hover {
  color: #ff6666;
  transform: scale(1.2);
}

.item-card {
  background: rgba(0, 255, 65, 0.05);
  border: 1px solid var(--fg);
  padding: 15px;
  margin: 10px 0;
  cursor: pointer;
  transition: all 0.3s;
}

.item-card:hover {
  background: rgba(0, 255, 65, 0.1);
  transform: translateX(5px);
  box-shadow: 0 0 15px rgba(0, 255, 65, 0.3);
}

.item-card h3 {
  color: var(--fg2);
  margin-bottom: 8px;
  font-size: 16px;
}

.item-card p {
  margin: 5px 0;
  font-size: 13px;
}

/* ============================================
   DIARY MODAL STYLES
   ============================================ */

#diaryModal {
  max-width: 700px;
  max-height: 85%;
}

#diaryContent {
  padding: 10px 0;
}

.diary-entry {
  margin-bottom: 25px;
  padding: 15px;
  background: rgba(0, 255, 65, 0.03);
  border-left: 3px solid var(--fg);
}

.diary-entry h3 {
  color: var(--fg);
  margin-bottom: 10px;
  font-size: 16px;
  text-shadow: var(--glow);
}

.diary-entry p {
  margin-bottom: 8px;
  line-height: 1.6;
  color: #9cffb5;
}

/* ============================================
   CHOICE SYSTEM
   ============================================ */

.choice-container {
  margin: 12px 0;
  padding: 12px;
  border: 1px solid var(--fg);
  background: rgba(0, 255, 65, 0.05);
}

.choice-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 12px;
  margin: 6px 0;
  border: 1px solid var(--fg);
  background: rgba(0, 255, 65, 0.1);
  color: var(--fg);
  cursor: pointer;
  font-family: "Courier New", monospace;
  transition: all 0.2s;
  font-size: 13px;
}

.choice-btn:hover {
  background: rgba(0, 255, 65, 0.2);
  padding-left: 20px;
  box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}

/* ============================================
   GLITCH EFFECTS
   ============================================ */

.glitch {
  animation: glitch 0.3s infinite;
}

@keyframes glitch {
  0%, 100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-2px);
  }
  40% {
    transform: translateX(2px);
  }
}

body.glitch-mode #terminal {
  animation: glitchTerminal 0.1s infinite;
}

@keyframes glitchTerminal {
  0% {
    transform: translate(0);
  }
  20% {
    transform: translate(-2px, 2px);
  }
  40% {
    transform: translate(2px, -2px);
  }
  60% {
    transform: translate(-2px, -2px);
  }
  80% {
    transform: translate(2px, 2px);
  }
  100% {
    transform: translate(0);
  }
}

/* EXTREME GLITCH (B5 low coherence) */
body.extreme-glitch #terminal {
  animation: extremeGlitch 0.08s infinite;
  text-shadow: 2px 0 0 #ff0000, -2px 0 0 #00ffff;
}

@keyframes extremeGlitch {
  0% {
    transform: translate(0) skew(0deg);
  }
  25% {
    transform: translate(-3px, 3px) skew(2deg);
  }
  50% {
    transform: translate(3px, -3px) skew(-2deg);
  }
  75% {
    transform: translate(-3px, -3px) skew(1deg);
  }
  100% {
    transform: translate(0) skew(0deg);
  }
}

.glitch-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 51, 51, 0.05);
  pointer-events: none;
  opacity: 0;
  mix-blend-mode: overlay;
  z-index: 998;
}

.glitch-overlay.active {
  animation: glitchFlash 0.5s;
}

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

/* SCAN LINES PULSE (terminal access) */
#terminal.scan-pulse {
  animation: scanPulse 0.6s ease-out;
}

@keyframes scanPulse {
  0% {
    box-shadow: inset 0 0 0 rgba(0, 255, 65, 0);
  }
  50% {
    box-shadow: inset 0 0 30px rgba(0, 255, 65, 0.5);
  }
  100% {
    box-shadow: inset 0 0 0 rgba(0, 255, 65, 0);
  }
}

/* ============================================
   HUD
   ============================================ */

#hud {
  position: fixed;
  right: 10px;
  top: 70px;
  width: 320px;
  background: rgba(0, 0, 0, 0.85);
  border: 1px solid var(--fg);
  padding: 10px;
  z-index: 500;
  backdrop-filter: blur(4px);
  display: none;
  box-shadow: 0 0 20px rgba(0, 255, 65, 0.3);
}

.hrow {
  display: flex;
  justify-content: space-between;
  margin: 4px 0;
  font-size: 12px;
}

.bar {
  height: 8px;
  background: #111;
  border: 1px solid var(--fg);
  position: relative;
  margin: 4px 0;
}

.bar > span {
  display: block;
  height: 100%;
  background: var(--fg);
  width: 0%;
  transition: width 0.4s ease-out;
  box-shadow: 0 0 8px var(--fg);
}

.minimap {
  font-family: monospace;
  background: #020;
  border: 1px solid var(--fg);
  padding: 8px;
  margin-top: 10px;
  white-space: pre;
  max-height: 150px;
  overflow: auto;
  font-size: 11px;
  line-height: 1.4;
}

.ticker {
  margin-top: 10px;
  border-top: 1px dashed var(--fg);
  padding-top: 8px;
  font-size: 11px;
  max-height: 100px;
  overflow: auto;
}

.ticker > div {
  margin: 3px 0;
  color: #ffaa00;
}

.legend {
  margin-top: 10px;
  font-size: 11px;
  border-top: 1px dashed var(--fg);
  padding-top: 8px;
  line-height: 1.6;
}

.legend code {
  color: var(--fg2);
  background: rgba(0, 204, 255, 0.1);
  padding: 2px 4px;
  border-radius: 2px;
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */

#toasts {
  position: fixed;
  right: 12px;
  bottom: 12px;
  z-index: 1200;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  min-width: 240px;
  max-width: 320px;
  background: rgba(0, 0, 0, 0.9);
  border: 1px solid var(--fg);
  padding: 12px;
  transform: translateX(400px);
  transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  font-size: 13px;
}

.toast.show {
  transform: translateX(0);
}

.toast .title {
  font-weight: bold;
  margin-bottom: 5px;
  text-shadow: var(--glow);
}

.toast.info {
  border-color: #00ccff;
}

.toast.info .title {
  color: #00ccff;
}

.toast.warn {
  border-color: #ffcc00;
}

.toast.warn .title {
  color: #ffcc00;
}

.toast.good {
  border-color: #00ff41;
}

.toast.good .title {
  color: #00ff41;
}

.toast.bad {
  border-color: #ff3333;
}

.toast.bad .title {
  color: #ff3333;
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #000;
}

::-webkit-scrollbar-thumb {
  background: var(--fg);
  border-radius: 2px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--fg2);
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */

@media (max-width: 768px) {
  #header {
    flex-direction: column;
  }
  
  .stats {
    width: 100%;
    justify-content: space-between;
  }
  
  #hud {
    width: calc(100% - 20px);
    right: 10px;
    top: auto;
    bottom: 10px;
  }
  
  .modal {
    max-width: 95%;
    max-height: 90%;
  }
  
  #terminal {
    font-size: 13px;
    padding: 15px;
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   CODE BLOCKS IN TEXT
   ============================================ */

code {
  color: var(--fg2);
  background: rgba(0, 204, 255, 0.1);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: "Courier New", monospace;
  font-size: 0.95em;
}

/* ============================================
   PRINT STYLES (for diary)
   ============================================ */

@media print {
  body {
    background: white;
    color: black;
  }
  
  #header,
  #inputArea,
  #hud,
  .glitch-overlay,
  #toasts {
    display: none !important;
  }
  
  #terminal {
    background: white;
    color: black;
  }
  
  .terminal-line {
    page-break-inside: avoid;
  }
}
```

---