:root {
  --primary-gold: #e2b04a;
  --gold-glow: rgba(226, 176, 74, 0.4);
  --hp-green: #37d643;
  --hp-red: #d63737;
  --sp-blue: #378cd6;
  --exp-yellow: #f1c40f;
  --bg-dark: #12141a;
  --panel-bg: rgba(24, 28, 38, 0.95);
  --panel-border: #3a4254;
  --text-main: #f0f3f8;
  --text-dim: #9aa5b8;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: radial-gradient(circle at center, #1a202c 0%, #0d1117 100%);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

header {
  background: rgba(18, 22, 32, 0.95);
  border-bottom: 2px solid var(--primary-gold);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
  z-index: 100;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--primary-gold);
  background: #2a3142 url('assets/ui/boot_logo.png') no-repeat center;
  background-size: cover;
  box-shadow: 0 0 10px var(--gold-glow);
}

.logo-title h1 {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: #fff;
  text-shadow: 0 2px 4px rgba(0,0,0,0.8);
}

.logo-title span {
  color: var(--primary-gold);
}

.logo-badge {
  font-size: 0.7rem;
  background: #232c3d;
  color: #8be9fd;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid #3c4c66;
  margin-left: 8px;
}

nav {
  display: flex;
  gap: 8px;
}

.nav-btn {
  background: #1e2433;
  color: var(--text-dim);
  border: 1px solid var(--panel-border);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-btn:hover {
  background: #2a3348;
  color: #fff;
  border-color: #4f5d7a;
}

.nav-btn.active {
  background: #2c3852;
  color: var(--primary-gold);
  border-color: var(--primary-gold);
  box-shadow: 0 0 12px var(--gold-glow);
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  position: relative;
}

/* Tab Views */
.tab-view {
  display: none;
  width: 100%;
  max-width: 1200px;
}

.tab-view.active {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Game Viewport Container */
.game-container {
  position: relative;
  width: 800px;
  max-width: 100%;
  background: #000;
  border: 3px solid var(--panel-border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
}

/* CRT Scanlines Overlay */
.game-container.crt::after {
  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, 0.04), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.04));
  z-index: 20;
  background-size: 100% 3px, 6px 100%;
  pointer-events: none;
}

#gameCanvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  background: #000;
}

/* Caution Overlay */
.caution-banner {
  position: absolute;
  top: 35%;
  left: 0;
  width: 100%;
  transform: translateY(-50%);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(180, 0, 0, 0.85);
  border-top: 4px solid #ffeb3b;
  border-bottom: 4px solid #ffeb3b;
  padding: 16px 0;
  z-index: 30;
  animation: flashRed 0.4s infinite alternate;
  box-shadow: 0 0 30px rgba(255, 0, 0, 0.8);
}

.caution-banner img {
  max-width: 80%;
  max-height: 120px;
  image-rendering: pixelated;
}

.caution-text {
  font-family: 'Impact', sans-serif;
  font-size: 2.5rem;
  letter-spacing: 4px;
  color: #ffeb3b;
  text-shadow: 0 0 10px #000, 2px 2px 0 #000;
  margin-top: 6px;
}

@keyframes flashRed {
  0% { background: rgba(160, 0, 0, 0.85); }
  100% { background: rgba(220, 20, 20, 0.95); }
}

/* Stage Clear Modal */
.clear-modal {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.85);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 40;
  animation: fadeIn 0.5s ease-out;
}

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

.clear-card {
  background: var(--panel-bg);
  border: 3px solid var(--primary-gold);
  border-radius: 12px;
  padding: 30px 40px;
  text-align: center;
  box-shadow: 0 0 40px var(--gold-glow);
  max-width: 480px;
  width: 90%;
}

.clear-title {
  font-family: 'Impact', sans-serif;
  font-size: 3rem;
  color: #ffeb3b;
  letter-spacing: 2px;
  text-shadow: 0 0 15px rgba(255, 235, 59, 0.8), 2px 2px 0 #000;
  margin-bottom: 20px;
}

.clear-stats {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
  font-size: 1.1rem;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--panel-border);
  padding-bottom: 6px;
}

.stat-row span:last-child {
  font-weight: bold;
  color: var(--primary-gold);
}

.clear-rank {
  font-size: 3.5rem;
  font-weight: 900;
  color: #ff1744;
  text-shadow: 0 0 20px rgba(255, 23, 68, 0.8);
  margin-bottom: 15px;
}

/* Game Top Controls Bar */
.game-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(15, 18, 25, 0.95);
  padding: 8px 16px;
  border-top: 1px solid var(--panel-border);
  width: 100%;
}

.game-controls-hint {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.game-controls-hint kbd {
  background: #242c3d;
  border: 1px solid #4a5772;
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--primary-gold);
  font-size: 0.75rem;
  font-family: inherit;
  font-weight: bold;
}

.game-actions-bar {
  display: flex;
  gap: 8px;
  align-items: center;
}

.audio-btn, .action-btn, .filter-btn {
  background: #242c3d;
  border: 1px solid #4a5772;
  color: #fff;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.audio-btn:hover, .action-btn:hover, .filter-btn:hover {
  background: #344059;
  border-color: var(--primary-gold);
}

.audio-btn.muted {
  opacity: 0.5;
  text-decoration: line-through;
}

.filter-btn.active {
  border-color: #8be9fd;
  color: #8be9fd;
  box-shadow: 0 0 8px rgba(139, 233, 253, 0.4);
}

/* Touch Controls (Mobile Virtual Gamepad) */
.virtual-controls {
  display: none;
  width: 100%;
  padding: 12px 0;
  justify-content: space-between;
  gap: 20px;
}

@media (max-width: 900px) {
  .virtual-controls {
    display: flex;
  }
}

.dpad {
  display: grid;
  grid-template-columns: repeat(3, 50px);
  grid-template-rows: repeat(3, 50px);
  gap: 4px;
}

.dpad-btn {
  background: rgba(40, 48, 66, 0.85);
  border: 1px solid #5a6b8c;
  color: #fff;
  border-radius: 8px;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
}

.dpad-btn:active {
  background: var(--primary-gold);
  color: #000;
}

.action-pad {
  display: grid;
  grid-template-columns: repeat(3, 56px);
  grid-template-rows: repeat(2, 56px);
  gap: 8px;
}

.act-btn {
  background: rgba(45, 55, 78, 0.9);
  border: 2px solid #6b7f9e;
  border-radius: 50%;
  color: #fff;
  font-weight: bold;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
}

.act-btn span {
  font-size: 0.6rem;
  color: var(--primary-gold);
}

.act-btn:active {
  background: var(--primary-gold);
  color: #000;
}

/* Character Selector Bar */
.chara-selector {
  display: flex;
  gap: 16px;
  margin-top: 14px;
  background: var(--panel-bg);
  padding: 10px 20px;
  border-radius: 10px;
  border: 1px solid var(--panel-border);
}

.chara-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border-radius: 8px;
  border: 2px solid transparent;
  background: #1a202c;
  cursor: pointer;
  transition: all 0.2s;
}

.chara-option:hover {
  background: #242c3d;
}

.chara-option.selected {
  border-color: var(--primary-gold);
  background: #242e42;
  box-shadow: 0 0 10px var(--gold-glow);
}

.chara-avatar {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background-color: #3b4252;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.chara-name {
  font-weight: bold;
  font-size: 0.9rem;
}

.chara-role {
  font-size: 0.7rem;
  color: var(--text-dim);
}

/* Studio & Inspector View */
.studio-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 20px;
  width: 100%;
  height: calc(100vh - 120px);
}

.studio-sidebar {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 12px;
  background: #181d28;
  border-bottom: 1px solid var(--panel-border);
}

.sidebar-header h3 {
  font-size: 0.95rem;
  margin-bottom: 8px;
  color: var(--primary-gold);
}

.pac-select {
  width: 100%;
  padding: 8px;
  background: #12151e;
  border: 1px solid #3c485e;
  border-radius: 6px;
  color: #fff;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.search-input {
  width: 100%;
  padding: 8px;
  background: #12151e;
  border: 1px solid #3c485e;
  border-radius: 6px;
  color: #fff;
  font-size: 0.85rem;
}

.file-list {
  flex: 1;
  overflow-y: auto;
  list-style: none;
}

.file-item {
  padding: 8px 12px;
  font-size: 0.8rem;
  border-bottom: 1px solid #232a3a;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.15s;
}

.file-item:hover {
  background: #252f44;
}

.file-item.active {
  background: #2e3a54;
  color: var(--primary-gold);
  font-weight: bold;
}

.file-badge {
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: #12151e;
  color: #8be9fd;
}

.studio-main {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 20px;
}

.preview-container {
  flex: 1;
  background: #0f121a;
  border: 1px solid #273042;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  position: relative;
}

.preview-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
}

.audio-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

/* Documentation View */
.doc-container {
  width: 100%;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 30px;
  line-height: 1.6;
}

.doc-container h2 {
  color: var(--primary-gold);
  border-bottom: 1px solid #3c485e;
  padding-bottom: 8px;
  margin: 20px 0 12px 0;
}

.doc-container h3 {
  color: #8be9fd;
  margin: 16px 0 8px 0;
}

.doc-container code {
  background: #141822;
  border: 1px solid #2f3b50;
  padding: 2px 6px;
  border-radius: 4px;
  color: #ff79c6;
  font-family: Consolas, monospace;
  font-size: 0.9em;
}

.doc-container pre {
  background: #10131b;
  border: 1px solid #283346;
  border-radius: 6px;
  padding: 14px;
  overflow-x: auto;
  margin: 12px 0;
  font-family: Consolas, monospace;
  font-size: 0.85rem;
  color: #e2e8f0;
}

.doc-container table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.doc-container th, .doc-container td {
  border: 1px solid #303a4d;
  padding: 8px 12px;
  text-align: left;
  font-size: 0.85rem;
}

.doc-container th {
  background: #1e2636;
  color: var(--primary-gold);
}

.doc-container tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

/* --- Multiplayer Mode Bar --- */
.mode-bar {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 12px;
}

.mode-btn {
  background: #1c2333;
  color: #a0aec0;
  border: 1px solid #364154;
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s;
}

.mode-btn:hover {
  background: #2a344a;
  color: #fff;
  border-color: var(--primary-gold);
}

.mode-btn.active {
  background: var(--primary-gold);
  color: #0d1117;
  border-color: var(--primary-gold);
  box-shadow: 0 0 12px var(--gold-glow);
}

/* --- Online Multiplayer Modal --- */
.online-modal {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 80;
  backdrop-filter: blur(4px);
}

.online-card {
  background: #18202f;
  border: 2px solid var(--primary-gold);
  border-radius: 12px;
  padding: 24px 32px;
  width: 90%;
  max-width: 540px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.8);
  text-align: center;
}

.online-card h3 {
  color: var(--primary-gold);
  font-size: 1.4rem;
  margin-bottom: 6px;
}

.online-card p {
  color: #a0aec0;
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.online-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.online-box {
  flex: 1;
  background: #121722;
  border: 1px solid #2d3748;
  border-radius: 8px;
  padding: 16px;
  text-align: center;
}

.online-box h4 {
  font-size: 0.95rem;
  color: #e2e8f0;
  margin-bottom: 12px;
}

.online-divider {
  font-weight: 800;
  color: #718096;
  font-size: 0.8rem;
}

.room-code-badge {
  font-size: 1.3rem;
  font-weight: 800;
  color: #40c4ff;
  letter-spacing: 2px;
  background: #1a2638;
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px dashed #40c4ff;
  margin-top: 4px;
}

.net-status {
  font-size: 0.85rem;
  color: #cbd5e0;
  padding: 8px 12px;
  background: #0f141e;
  border-radius: 6px;
  border: 1px solid #232c3d;
  margin-bottom: 14px;
}

.net-status.connected {
  color: #4caf50;
  border-color: #2e7d32;
  background: rgba(46, 125, 50, 0.15);
}

.net-status.connecting {
  color: #ffb74d;
  border-color: #f57c00;
}

.close-modal-btn {
  background: transparent;
  border: 1px solid #4a5568;
  color: #a0aec0;
  padding: 6px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
}

.close-modal-btn:hover {
  background: #2d3748;
  color: #fff;
}