/* === Google Font Import === */
@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

/* === Custom Properties === */
:root {
  --bg-deep: #0a0a2e;
  --accent-green: #00ff88;
  --accent-cyan: #00ccff;
  --text-white: #f0f0f0;
  --modal-backdrop: rgba(0, 0, 0, 0.85);
  --font-pixel: 'Press Start 2P', monospace;
  --font-body: 'Courier New', 'Consolas', monospace;
}

/* === Reset & Base === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg-deep);
  color: var(--text-white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
}

/* === p5.js Background Canvas === */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

#bg-canvas canvas {
  display: block;
}

/* === Console (Landing Page) === */
.console {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  text-align: center;
  padding: 2rem;
}

.console-title {
  font-family: var(--font-pixel);
  font-size: clamp(0.8rem, 2.5vw, 1.4rem);
  color: var(--accent-green);
  text-shadow: 0 0 20px var(--accent-green), 0 0 40px rgba(0, 255, 136, 0.3);
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
  max-width: 90vw;
}

.console-subtitle {
  font-family: var(--font-body);
  font-size: clamp(0.7rem, 1.5vw, 1rem);
  color: var(--accent-cyan);
  margin-bottom: 3rem;
  opacity: 0.8;
}

.console-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.console-menu li {
  font-family: var(--font-pixel);
  font-size: clamp(0.6rem, 1.5vw, 0.9rem);
  color: var(--text-white);
  cursor: pointer;
  padding: 0.8rem 2rem;
  border: 1px solid transparent;
  transition: all 0.3s ease;
  letter-spacing: 1px;
}

.console-menu li:hover {
  color: var(--accent-green);
  text-shadow: 0 0 15px var(--accent-green), 0 0 30px rgba(0, 255, 136, 0.4);
  border-color: rgba(0, 255, 136, 0.3);
}

.console-menu li .menu-arrow {
  opacity: 0;
  transition: opacity 0.3s;
  margin-right: 0.5rem;
}

.console-menu li:hover .menu-arrow {
  opacity: 1;
}

/* === Modal Overlay === */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--modal-backdrop);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal-backdrop.active {
  display: flex;
  opacity: 1;
}

.modal {
  background: #0d0d35;
  border: 2px solid var(--accent-green);
  box-shadow: 0 0 30px rgba(0, 255, 136, 0.2), inset 0 0 30px rgba(0, 0, 0, 0.5);
  border-radius: 4px;
  width: 90vw;
  max-width: 900px;
  max-height: 85vh;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 2rem;
  position: relative;
}

.modal-title {
  font-family: var(--font-pixel);
  font-size: clamp(0.6rem, 1.5vw, 0.9rem);
  color: var(--accent-green);
  text-shadow: 0 0 10px var(--accent-green);
  margin-bottom: 1.5rem;
  text-align: center;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  color: var(--accent-cyan);
  cursor: pointer;
  background: none;
  border: 1px solid var(--accent-cyan);
  padding: 0.3rem 0.6rem;
  transition: all 0.3s;
}

.modal-close:hover {
  color: #fff;
  border-color: #fff;
  text-shadow: 0 0 10px var(--accent-cyan);
}

/* Getting Started link */
.getting-started {
  display: inline-block;
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  padding: 0.5rem 1rem;
  margin-bottom: 1.5rem;
  text-decoration: none;
  transition: all 0.3s;
}

.getting-started:hover {
  background: rgba(0, 204, 255, 0.1);
  text-shadow: 0 0 10px var(--accent-cyan);
}


/* Level selector tabs */
.level-selector {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.level-btn {
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  color: var(--text-white);
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.6rem 1rem;
  cursor: pointer;
  transition: all 0.3s;
  letter-spacing: 1px;
  text-align: left;
  width: 100%;
}

.level-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  text-shadow: 0 0 8px var(--accent-cyan);
}

.level-btn.active {
  border-color: var(--accent-green);
  color: var(--accent-green);
  background: rgba(0, 255, 136, 0.08);
  text-shadow: 0 0 10px var(--accent-green);
  box-shadow: 0 0 12px rgba(0, 255, 136, 0.15);
}

/* Level content panels */
.level-content {
  display: none;
}

.level-content.active {
  display: block;
}

/* Video embed */
.video-item {
  margin-bottom: 1.5rem;
}

.video-label {
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
  letter-spacing: 1px;
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 1px solid rgba(0, 255, 136, 0.3);
}

/* Game item link (for non-video resources) */
.game-item {
  display: block;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--accent-green);
  text-decoration: none;
  padding: 0.8rem 1rem;
  border: 1px dashed var(--accent-green);
  margin-bottom: 1.5rem;
  transition: all 0.3s;
}

.game-item:hover {
  background: rgba(0, 255, 136, 0.05);
  border-style: solid;
  text-shadow: 0 0 8px var(--accent-green);
}

/* Locked/coming soon item */
.game-item-locked {
  color: #555;
  border-color: #333;
  cursor: default;
}

.game-item-locked:hover {
  background: none;
  border-style: dashed;
  text-shadow: none;
}

/* Further Reading list */
.reading-section {
  margin-bottom: 2rem;
}

.reading-section h3 {
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
  letter-spacing: 1px;
}

.reading-list {
  list-style: none;
}

.reading-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
  line-height: 1.5;
}

.reading-list a {
  color: var(--accent-green);
  text-decoration: none;
  transition: text-shadow 0.3s;
}

.reading-list a:hover {
  text-shadow: 0 0 8px var(--accent-green);
}

/* Modal scrollbar */
.modal::-webkit-scrollbar {
  width: 6px;
}
.modal::-webkit-scrollbar-track {
  background: #0a0a2e;
}
.modal::-webkit-scrollbar-thumb {
  background: var(--accent-green);
  border-radius: 3px;
}

/* === Slideshow (Full-Screen Takeover) === */
.slideshow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 50;
  background: transparent;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.slideshow.active {
  display: flex;
}

.slideshow-return {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: var(--accent-cyan);
  cursor: pointer;
  background: none;
  border: 1px solid var(--accent-cyan);
  padding: 0.4rem 0.8rem;
  z-index: 51;
  transition: all 0.3s;
}

.slideshow-return:hover {
  color: #fff;
  border-color: #fff;
  text-shadow: 0 0 10px var(--accent-cyan);
}

.slide {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  max-width: 1000px;
  width: 95%;
  padding: 3.5rem 2rem 4rem;
  text-align: left;
  height: calc(100vh - 2rem);
  overflow: hidden;
}

.slide.active {
  display: flex;
}

.slide-text {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.6vw, 1.25rem);
  line-height: 1.5;
  color: var(--text-white);
  margin-top: 0.75rem;
  opacity: 0.9;
  order: 2;
  flex-shrink: 0;
}

.slide-figure {
  order: 1;
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 100%;
  overflow: hidden;
}

.slide-image {
  max-width: 100%;
  flex: 1 1 auto;
  min-height: 0;
  object-fit: contain;
  border: 1px solid rgba(0, 255, 136, 0.3);
  /* Scanline reveal animation applied via JS */
  clip-path: inset(0 0 100% 0);
}

.slide-image.revealed {
  animation: scanReveal 1s ease-out forwards;
}

.slide-caption {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
  margin-top: 0.4rem;
  flex-shrink: 0;
}

.slide-caption a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color 0.3s;
}

.slide-caption a:hover {
  color: var(--accent-green);
}

.slide-text a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: text-shadow 0.3s;
}

.slide-text a:hover {
  text-shadow: 0 0 8px var(--accent-cyan);
}

@keyframes scanReveal {
  from { clip-path: inset(0 0 100% 0); }
  to { clip-path: inset(0 0 0% 0); }
}

.slide-counter {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: rgba(255, 255, 255, 0.4);
}

/* Navigation arrows */
.slide-nav {
  position: absolute;
  bottom: 1.5rem;
  display: flex;
  gap: 1rem;
}

.slide-nav-left {
  left: 2rem;
}

.slide-nav-right {
  right: 2rem;
}

.slide-nav button {
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  color: var(--accent-green);
  background: none;
  border: 1px solid var(--accent-green);
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: all 0.3s;
}

.slide-nav button:hover {
  text-shadow: 0 0 10px var(--accent-green);
  box-shadow: 0 0 15px rgba(0, 255, 136, 0.2);
}

/* Loading bar between slides */
.slide-loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: none;
}

.slide-loader.active {
  display: block;
}

.slide-loader-bar {
  width: 200px;
  height: 8px;
  border: 1px solid var(--accent-green);
  overflow: hidden;
}

.slide-loader-fill {
  height: 100%;
  width: 0%;
  background: var(--accent-green);
  animation: loadFill 0.4s steps(10) forwards;
}

@keyframes loadFill {
  to { width: 100%; }
}

.slide-loader-text {
  font-family: var(--font-pixel);
  font-size: 0.45rem;
  color: var(--accent-green);
  text-align: center;
  margin-top: 0.5rem;
}

/* Glitch transition */
.slideshow.glitch {
  animation: glitchFlicker 0.15s steps(2) 2;
}

@keyframes glitchFlicker {
  0% { filter: none; }
  25% { filter: hue-rotate(90deg) brightness(1.5); }
  50% { filter: invert(0.1) brightness(1.2); }
  75% { filter: hue-rotate(-90deg); }
  100% { filter: none; }
}

/* Typewriter cursor */
.typewriter-cursor {
  display: inline-block;
  width: 0.6em;
  height: 1em;
  background: var(--accent-green);
  vertical-align: text-bottom;
  animation: cursorBlink 0.7s step-end infinite;
}

@keyframes cursorBlink {
  50% { opacity: 0; }
}

/* === Responsive === */
@media (max-width: 768px) {
  .console {
    padding: 1.5rem;
  }

  .console-menu li {
    padding: 0.6rem 1.2rem;
  }

  .modal {
    width: 95vw;
    max-height: 90vh;
    padding: 1.5rem;
  }

  .slide {
    padding: 1.5rem;
  }

  .slide-nav button {
    font-size: 0.6rem;
    padding: 0.4rem 0.7rem;
  }
}

@media (max-width: 480px) {
  .console-title {
    font-size: 0.65rem;
  }

  .console-menu li {
    font-size: 0.5rem;
  }

  .modal {
    padding: 1rem;
  }

  .modal-title {
    font-size: 0.5rem;
  }
}