/* Custom styling for Angel's Sword RPG: Combat School (PC-98 Retro Edition) */

:root {
  /* PC-98 Color Palette */
  --pc98-bg-dark: #05050f;       /* Deep space/navy black */
  --pc98-window-bg: #0c1220;     /* Translucent dark window pane */
  --pc98-border-light: #4c6280;  /* Standard UI border blue-grey */
  --pc98-border-highlight: #00f0ff; /* Glowing cyan */
  --pc98-text-green: #33ff33;    /* Glowing terminal green */
  --pc98-text-amber: #ffaa00;    /* Glowing warning orange */
  --pc98-text-cyan: #00f0ff;     /* Glowing cyan */
  --pc98-text-white: #ffffff;    /* Dialogue white */
  --pc98-text-muted: #8899aa;    /* Secondary labels */
  --pc98-led-green: #00ff66;     /* Active power LED */
  --pc98-led-red: #ff3333;       /* Warning LED */
  --pc98-gold-glow: #dfb858;     /* Fairy wings gold */
  
  /* Font Family Stacks */
  --font-mono: 'Share Tech Mono', monospace;
  --font-pixel: 'Press Start 2P', monospace;
  --font-dialogue: 'VT323', monospace;

  /* Layout Constants */
  --sidebar-width: 320px;
  --bezel-color: #bab09e;        /* Classic retro grey-beige computer casing */
  --bezel-color-dark: #8c8270;
  --bezel-color-light: #eae0cf;
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  image-rendering: pixelated; /* Maintain pixel art crispness */
}

body {
  background-color: #12121e;
  color: var(--pc98-text-white);
  font-family: var(--font-mono);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  display: flex;
  justify-content: center;
  align-items: center;
  user-select: none;
}

/* Main Container Layout */
.app-container {
  display: flex;
  width: 100vw;
  height: 100vh;
  background-color: var(--pc98-bg-dark);
}

/* ==========================================================================
   SIDEBAR & TABLE OF CONTENTS
   ========================================================================== */
.sidebar {
  width: var(--sidebar-width);
  background-color: #0c0c16;
  border-right: 4px double var(--pc98-border-light);
  display: flex;
  flex-direction: column;
  padding: 20px;
  z-index: 10;
}

.sidebar-header {
  border-bottom: 3px double var(--pc98-border-light);
  padding-bottom: 15px;
  margin-bottom: 20px;
  text-align: center;
}

.game-logo {
  font-family: var(--font-pixel);
  font-size: 1.4rem;
  color: var(--pc98-text-cyan);
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
  letter-spacing: 2px;
}

.subtitle {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--pc98-text-amber);
  margin-top: 5px;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.toc-container {
  flex-grow: 1;
  overflow-y: auto;
}

.menu-label {
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  color: var(--pc98-text-muted);
  margin-bottom: 10px;
  letter-spacing: 1px;
}

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

.toc-item {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  padding: 12px 10px;
  margin-bottom: 8px;
  cursor: pointer;
  border: 1px solid transparent;
  color: var(--pc98-text-muted);
  transition: all 0.2s ease;
  position: relative;
  display: flex;
  align-items: center;
}

.toc-item::before {
  content: "▶";
  font-family: var(--font-mono);
  position: absolute;
  left: -10px;
  opacity: 0;
  color: var(--pc98-text-green);
  transition: opacity 0.2s, left 0.2s;
}

.toc-item:hover {
  color: var(--pc98-text-white);
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px dashed var(--pc98-border-light);
}

.toc-item:hover::before {
  opacity: 0.7;
  left: -2px;
}

.toc-item.active {
  color: var(--pc98-text-green);
  font-weight: bold;
  border: 1px solid var(--pc98-text-green);
  background-color: rgba(51, 255, 51, 0.05);
  box-shadow: inset 0 0 5px rgba(51, 255, 51, 0.2);
}

.toc-item.active::before {
  content: "▶";
  opacity: 1;
  left: 5px;
}
.toc-item.active {
  padding-left: 22px;
}

/* TOC Sublist and Subitems (Attack Types children) */
.toc-sublist {
  list-style: none;
  padding-left: 18px;
  margin-top: -4px;
  margin-bottom: 12px;
}

.toc-subitem {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--pc98-text-muted);
  padding: 6px 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  border-left: 1px dashed var(--pc98-border-light);
}

.toc-subitem:hover {
  color: var(--pc98-text-white);
  border-left: 1px solid var(--pc98-text-cyan);
  background-color: rgba(255, 255, 255, 0.02);
}

.toc-subitem.active {
  color: var(--pc98-text-cyan);
  font-weight: bold;
  border-left: 2px solid var(--pc98-text-cyan);
  background-color: rgba(0, 240, 255, 0.05);
  text-shadow: 0 0 5px rgba(0, 240, 255, 0.4);
}

/* System Control Widgets */
.sidebar-footer {
  border-top: 3px double var(--pc98-border-light);
  padding-top: 15px;
  margin-top: 10px;
}

.footer-link {
  display: block;
  text-decoration: none;
  text-align: center;
  margin-bottom: 15px;
}

.retro-btn {
  background-color: #162030;
  border: 2px solid var(--pc98-border-light);
  color: var(--pc98-text-cyan);
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  padding: 10px;
  cursor: pointer;
  outline: none;
  position: relative;
  transition: all 0.1s ease;
  box-shadow: 3px 3px 0px #080a10;
  text-transform: uppercase;
}

.retro-btn:hover {
  background-color: #202e45;
  border-color: var(--pc98-border-highlight);
  color: var(--pc98-text-white);
  box-shadow: 2px 2px 0px #080a10;
  transform: translate(1px, 1px);
}

.retro-btn:active {
  box-shadow: 0px 0px 0px #080a10;
  transform: translate(3px, 3px);
}

.system-controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.control-group {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--pc98-text-muted);
}

.control-group .label {
  letter-spacing: 1px;
}

/* Toggle Switch Styles */
.switch {
  position: relative;
  display: inline-block;
  width: 46px;
  height: 20px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #1f2733;
  border: 1px solid var(--pc98-border-light);
  transition: .2s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 12px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: var(--pc98-text-muted);
  transition: .2s;
}

input:checked + .slider {
  border-color: var(--pc98-text-green);
}

input:checked + .slider:before {
  transform: translateX(22px);
  background-color: var(--pc98-text-green);
  box-shadow: 0 0 5px var(--pc98-text-green);
}


/* ==========================================================================
   MONITOR CASE & CRT DISPLAY
   ========================================================================== */
.monitor-wrapper {
  flex-grow: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #0c0c16;
  padding: 30px;
}

/* Outer Monitor Bezel */
.monitor-bezel {
  width: 100%;
  max-width: 960px;
  aspect-ratio: 4 / 3;
  background-color: var(--bezel-color);
  border-top: 8px solid var(--bezel-color-light);
  border-left: 8px solid var(--bezel-color-light);
  border-right: 8px solid var(--bezel-color-dark);
  border-bottom: 8px solid var(--bezel-color-dark);
  border-radius: 12px;
  padding: 25px 25px 45px 25px; /* Thicker bottom for controls and logo */
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), inset 0 2px 5px rgba(255,255,255,0.5);
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Monitor Branding & LED Indicators */
.monitor-brand {
  position: absolute;
  bottom: 12px;
  left: 35px;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: bold;
  color: #635b4c;
  letter-spacing: 2px;
  text-shadow: 1px 1px 0px var(--bezel-color-light);
}

.power-led-group {
  position: absolute;
  bottom: 14px;
  right: 35px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.power-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: #635b4c;
  font-weight: bold;
}

.power-led {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: #4a443a;
  border: 1px solid #736b5c;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.5);
  transition: background-color 0.3s ease;
}

.power-led.active {
  background-color: var(--pc98-led-green);
  box-shadow: 0 0 6px var(--pc98-led-green), inset 0 1px 1px rgba(255,255,255,0.8);
}


/* Inner CRT Screen Frame */
.crt-screen {
  flex-grow: 1;
  background-color: var(--pc98-bg-dark);
  border: 6px solid #4a443a;
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 0 20px rgba(0,0,0,1);
}

/* CRT Screen Scanlines and Curvature Shader Overlay */
.screen-curvature {
  content: " ";
  display: block;
  position: absolute;
  top: 0; left: 0; bottom: 0; right: 0;
  background: radial-gradient(circle, rgba(0,0,0,0) 60%, rgba(0,0,0,0.4) 100%);
  pointer-events: none;
  z-index: 15; /* Sits above video cutscene layers and navigation zones */
}

.scanlines {
  content: " ";
  display: block;
  position: absolute;
  top: 0; left: 0; bottom: 0; right: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
  background-size: 100% 4px, 6px 100%;
  pointer-events: none;
  z-index: 14; /* Sits above video cutscene layers and navigation zones */
}

/* CRT Screen Filter Toggle Off Class */
.no-crt .scanlines {
  display: none;
}
.no-crt .screen-curvature {
  background: none;
}
.no-crt .crt-screen {
  box-shadow: none;
}
.no-crt * {
  text-shadow: none !important;
}


/* ==========================================================================
   VISUAL NOVEL STAGE
   ========================================================================== */
.vn-stage {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

/* Background Scene Layer */
.stage-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('assets/retro_classroom_bg.png');
  background-size: cover;
  background-position: center;
  transition: opacity 0.5s ease-in-out;
  z-index: 1;
}

/* Queri Sprite Layer */
.sprite-container {
  position: absolute;
  bottom: -60px; /* Shifted down so lower body is hidden behind dialogue box */
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  width: 480px;
  height: 480px;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  pointer-events: none;
}

.queri-sprite {
  max-height: 100%;
  object-fit: contain;
  transition: opacity 0.3s ease;
  filter: drop-shadow(0px 8px 16px rgba(0, 0, 0, 0.7));
}

/* Floating animation simulating fairy hovering */
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
  100% { transform: translateY(0px); }
}

.float-anim {
  animation: float 4s ease-in-out infinite;
}


/* ==========================================================================
   NAVIGATION OVERLAYS (LEFT / RIGHT CLICK ZONES)
   ========================================================================== */
.nav-zone {
  position: absolute;
  top: 0;
  bottom: 145px; /* Don't overlap dialogue box */
  width: 10%; /* Thinner hitbox to prevent overlaps with cards during Combat Practice */
  cursor: pointer;
  z-index: 12; /* Raise above video layer (z-index: 10) to register navigation clicks */
  display: flex;
  align-items: center;
  opacity: 0;
  transition: opacity 0.2s ease, background-color 0.2s ease;
}

.zone-left {
  left: 0;
  justify-content: flex-start;
  padding-left: 20px;
  background: linear-gradient(to right, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0) 100%);
}

.zone-right {
  right: 0;
  justify-content: flex-end;
  padding-right: 20px;
  background: linear-gradient(to left, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0) 100%);
}

.nav-arrow {
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  color: var(--pc98-text-white);
  background-color: var(--pc98-window-bg);
  border: 2px solid var(--pc98-border-light);
  padding: 8px 12px;
  box-shadow: 3px 3px 0 #000;
  white-space: nowrap; /* Avoid wrapping due to thin nav-zones */
}

.nav-zone:hover {
  opacity: 1;
}

.zone-left:hover .nav-arrow {
  color: var(--pc98-text-amber);
  border-color: var(--pc98-text-amber);
}

.zone-right:hover .nav-arrow {
  color: var(--pc98-text-green);
  border-color: var(--pc98-text-green);
}


/* ==========================================================================
   DIALOGUE WINDOW (PC-98 TEXT INTERFACE)
   ========================================================================== */
.dialogue-box {
  position: absolute;
  bottom: 15px;
  left: 20px;
  right: 20px;
  height: 135px;
  background-color: var(--pc98-window-bg);
  border: 3px double var(--pc98-text-white);
  padding: 10px 20px;
  z-index: 5;
  box-shadow: 0 8px 16px rgba(0,0,0,0.8);
  display: flex;
  flex-direction: column;
}

.dialogue-header {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dashed var(--pc98-border-light);
  padding-bottom: 4px;
  margin-bottom: 6px;
  font-size: 0.85rem;
}

.speaker-name {
  font-family: var(--font-pixel);
  color: var(--pc98-text-amber);
  font-size: 0.75rem;
  letter-spacing: 1px;
}

.slide-counter {
  font-family: var(--font-mono);
  color: var(--pc98-text-muted);
}

.dialogue-body {
  flex-grow: 1;
  position: relative;
  overflow: hidden;
}

.dialogue-text {
  font-family: var(--font-dialogue);
  font-size: 1.35rem;
  line-height: 1.35;
  color: var(--pc98-text-white);
  white-space: pre-wrap;
  text-shadow: 0 0 1px rgba(255,255,255,0.5);
}

/* Custom colors inside dialogue */
.dialogue-text strong {
  font-weight: normal;
  color: var(--pc98-text-cyan);
  text-shadow: 0 0 4px rgba(0,240,255,0.4);
}

.dialogue-text em {
  font-style: normal;
  color: var(--pc98-text-amber);
  text-shadow: 0 0 4px rgba(255,170,0,0.4);
}

/* Blinking Arrow click-to-continue indicator */
@keyframes blink {
  0% { opacity: 0; }
  50% { opacity: 1; }
  100% { opacity: 0; }
}

.blinking-arrow {
  display: block;
  position: absolute;
  bottom: 0;
  right: 0;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 10px solid var(--pc98-text-green);
  animation: blink 0.8s infinite;
  display: none; /* Controlled by JS typewriter end */
}


/* ==========================================================================
   INTERACTIVE HOTSPOTS LAYER
   ========================================================================== */
.hotspot-layer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 145px;
  z-index: 4;
  pointer-events: none; /* Let clicks pass through except on active spots */
  display: none; /* Shown dynamically by JS */
}

.hotspot {
  position: absolute;
  pointer-events: auto;
  cursor: pointer;
  background-color: rgba(0, 240, 255, 0.15);
  border: 2px dashed var(--pc98-text-cyan);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: all 0.2s ease;
  box-shadow: 0 0 10px rgba(0,240,255,0.2);
}

.hotspot:hover {
  background-color: rgba(51, 255, 51, 0.25);
  border: 2px solid var(--pc98-text-green);
  box-shadow: 0 0 15px rgba(51,255,51,0.5);
  transform: scale(1.02);
}

.hotspot-label {
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--pc98-text-white);
  background-color: #0c0c16;
  border: 1px solid var(--pc98-border-light);
  padding: 3px 6px;
  margin-top: 5px;
  text-shadow: none;
}

.hotspot:hover .hotspot-label {
  color: var(--pc98-text-green);
  border-color: var(--pc98-text-green);
}

.hotspot-icon {
  font-size: 2.2rem;
  margin-bottom: 8px;
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
  transition: all 0.2s ease;
}

.hotspot:hover .hotspot-icon {
  transform: scale(1.15);
  text-shadow: 0 0 15px rgba(51, 255, 51, 0.8);
}



/* ==========================================================================
   RETRO POPUP WINDOW (SUB-PANELS)
   ========================================================================== */
.retro-popup {
  position: absolute;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 480px;
  background-color: var(--pc98-window-bg);
  border: 3px solid var(--pc98-text-amber);
  z-index: 9;
  box-shadow: 0 15px 30px rgba(0,0,0,0.9);
  display: none; /* Shown dynamically */
  animation: popupOpen 0.2s ease-out;
  cursor: pointer;
}

@keyframes popupOpen {
  from { transform: translateX(-50%) scale(0.9); opacity: 0; }
  to { transform: translateX(-50%) scale(1); opacity: 1; }
}

.popup-header {
  background-color: var(--pc98-text-amber);
  color: var(--pc98-bg-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 10px;
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  font-weight: bold;
}

.popup-close {
  background: none;
  border: none;
  color: var(--pc98-bg-dark);
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  font-weight: bold;
  cursor: pointer;
}

.popup-close:hover {
  color: var(--pc98-text-white);
}

.popup-body {
  padding: 15px 20px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.4;
  color: var(--pc98-text-white);
  white-space: pre-wrap;
}


/* ==========================================================================
   VIDEO DISPLAY LAYER
   ========================================================================== */
.video-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10; /* Foreground overlay covering sprites and dialogue boxes */
  display: none; /* Controlled by JS */
  background-color: #000;
}

.video-bezel {
  display: flex;
  flex-direction: column;
  background-color: #000;
  width: 100%;
  height: 100%;
}

.video-bezel video {
  width: 100%;
  height: 100%;
  background-color: #000;
  display: block;
  object-fit: contain; /* Fit video aspect ratio inside CRT stage */
}

.video-container {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.video-error-message {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #050510;
  z-index: 2;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* TV Static Noise animation */
@keyframes staticShift {
  0% { background-position: 0 0; }
  100% { background-position: 50px 50px; }
}

.static-noise {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.08;
  background-image: 
    radial-gradient(circle, #fff 15%, transparent 16%),
    radial-gradient(circle, #fff 15%, transparent 16%);
  background-size: 6px 6px;
  background-position: 0 0, 3px 3px;
  animation: staticShift 0.08s steps(4) infinite;
  pointer-events: none;
}

.error-text {
  position: relative;
  z-index: 3;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--pc98-text-muted);
  text-shadow: 0 0 4px rgba(255, 170, 0, 0.4);
}

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

.blink-fast {
  animation: blinkFast 0.6s steps(1) infinite;
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  color: var(--pc98-text-amber);
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.video-controls {
  display: none !important; /* Hide console buttons for full-screen cutscene */
}

.video-time {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--pc98-text-muted);
  margin-left: auto;
}

/* ==========================================================================
   START SCREEN & GAME STATE MODIFIERS
   ========================================================================== */
.game-not-started .sidebar {
  display: none !important;
}

.game-not-started .dialogue-box {
  display: none !important;
}

.game-not-started .monitor-wrapper {
  width: 100vw;
  max-width: 100%;
  height: 100vh;
  justify-content: center;
  padding: 20px;
}

.game-not-started .monitor-bezel {
  max-width: 800px; /* Centered compact fit for the startup monitor */
}

.start-screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--pc98-bg-dark);
  z-index: 20; /* High z-index to overlay everything */
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  padding: 40px 20px;
  cursor: pointer;
  border: 4px solid var(--pc98-border-light);
}

.start-title-container {
  text-align: center;
}

.start-game-title {
  font-family: var(--font-pixel);
  font-size: 2rem;
  color: var(--pc98-text-cyan);
  text-shadow: 0 0 12px rgba(0, 240, 255, 0.7);
  letter-spacing: 4px;
  margin-bottom: 8px;
}

.start-sub-title {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--pc98-text-amber);
  text-shadow: 0 0 8px rgba(255, 170, 0, 0.6);
  letter-spacing: 6px;
  text-transform: uppercase;
}

.start-graphic {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 160px;
}

.start-prompt {
  font-family: var(--font-pixel);
  font-size: 0.9rem;
  color: var(--pc98-text-green);
  text-shadow: 0 0 8px rgba(51, 255, 51, 0.6);
  letter-spacing: 2px;
}

.start-copyright {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--pc98-text-muted);
  letter-spacing: 1px;
}