* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-dark: #0a0a0f;
  --bg-panel: #111118;
  --forge-orange: #ff6b2b;
  --forge-orange-dim: #cc5520;
  --cool-blue: #4a9eff;
  --text-main: #e8e8f0;
  --text-muted: #6a6a7a;
  --glass-bg: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --font-sans: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
}

#scene-container {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
}

#scene-container canvas {
  display: block;
}

.stage {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 10;
  display: none;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.stage.active {
  display: flex;
  opacity: 1;
}

/* ==================== STAGE 1 ==================== */
#stage1 {
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

#bg-canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
}

.prompt-panel {
  position: relative;
  z-index: 1;
  max-width: 800px;
  width: 90%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  animation: fadeUp 0.8s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.logo-area {
  text-align: center;
  margin-bottom: 8px;
}

.logo-icon {
  display: inline-block;
  margin-bottom: 8px;
}

.ember-glow {
  animation: emberPulse 2s ease-in-out infinite;
}

@keyframes emberPulse {
  0%, 100% { opacity: 0.6; r: 4; }
  50% { opacity: 1; r: 6; }
}

.logo-title {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 3.2rem;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--forge-orange), #ffaa66);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-tagline {
  color: var(--text-muted);
  font-size: 1rem;
  font-weight: 300;
  margin-top: 4px;
  letter-spacing: 0.02em;
}

.textarea-wrap {
  position: relative;
  width: 100%;
}

#prompt-input {
  width: 100%;
  height: 140px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 400;
  padding: 16px;
  resize: none;
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
  position: relative;
  z-index: 2;
}

#prompt-input:focus {
  border-color: var(--forge-orange);
  box-shadow: 0 0 30px rgba(255,107,43,0.1);
}

.placeholder-typewriter {
  position: absolute;
  top: 16px;
  left: 16px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-muted);
  pointer-events: none;
  z-index: 3;
  opacity: 0.5;
}

#prompt-input:focus + .placeholder-typewriter,
#prompt-input.has-text + .placeholder-typewriter {
  display: none;
}

.example-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.chip {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s;
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chip:hover {
  border-color: var(--cool-blue);
  color: var(--cool-blue);
  box-shadow: 0 0 15px rgba(74,158,255,0.15);
}

.forge-button {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 40px;
  background: linear-gradient(135deg, var(--forge-orange), #ff8844);
  border: none;
  border-radius: 12px;
  color: #fff;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 30px rgba(255,107,43,0.3);
}

.forge-button:hover:not(:disabled) {
  transform: scale(1.04);
  box-shadow: 0 4px 40px rgba(255,107,43,0.5);
}

.forge-button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  box-shadow: none;
}

.anvil-icon {
  animation: hammerBounce 1.5s ease-in-out infinite;
}

@keyframes hammerBounce {
  0%, 100% { transform: translateY(0) rotate(0); }
  50% { transform: translateY(-2px) rotate(-5deg); }
}

.advanced-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  cursor: pointer;
  transition: color 0.3s;
}

.advanced-link:hover { color: var(--cool-blue); }

.advanced-panel {
  width: 100%;
  max-width: 500px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.3s;
}

.advanced-panel.hidden {
  display: none;
}

.adv-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.adv-row label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  min-width: 60px;
}

.adv-row input[type="number"] {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 6px 12px;
  outline: none;
  width: 120px;
}

.seg-control {
  display: flex;
  gap: 0;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  overflow: hidden;
}

.seg-control button {
  background: transparent;
  border: none;
  border-right: 1px solid var(--glass-border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 6px 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.seg-control button:last-child { border-right: none; }

.seg-control button.active {
  background: var(--forge-orange);
  color: #fff;
}

.seg-control button:hover:not(.active) {
  background: rgba(255,255,255,0.05);
}

/* ==================== STAGE 2 ==================== */
#stage2 {
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.88);
  backdrop-filter: blur(10px);
}

.loading-panel {
  max-width: 520px;
  width: 90%;
  text-align: center;
  animation: fadeUp 0.5s ease both;
}

.loading-title {
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--forge-orange), var(--cool-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.preview-container {
  margin: 0 auto 20px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: #050508;
}

#preview-canvas {
  width: 100%;
  max-width: 400px;
  height: auto;
  display: block;
}

.progress-stages {
  text-align: left;
  margin: 0 auto 16px;
  max-width: 350px;
}

.pstage {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 4px 0;
  transition: color 0.3s;
}

.pstage.active { color: var(--cool-blue); }
.pstage.done { color: #44cc66; }

.pstage .check {
  display: inline-block;
  width: 18px;
  text-align: center;
}

.pstage .substage {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.25);
  font-style: italic;
}

.progress-bar-wrap {
  width: 100%;
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 12px;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--forge-orange), #ffaa44);
  border-radius: 2px;
  transition: width 0.3s ease;
  box-shadow: 0 0 15px var(--forge-orange);
  position: relative;
}

.est-time {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.cancel-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  cursor: pointer;
  transition: color 0.3s;
}

.cancel-link:hover { color: var(--forge-orange); }

/* ==================== STAGE 3 HUD ==================== */
#stage3 {
  pointer-events: none;
}

#stage3 .settings-gear,
#stage3 .settings-drawer,
#stage3 .mobile-controls,
#stage3 .mobile-btn {
  pointer-events: auto;
}

.hud {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 20;
  pointer-events: none;
  transition: opacity 0.5s;
}

.hud.faded { opacity: 0.2; }

.hud-top-left {
  position: absolute;
  top: 16px; left: 16px;
}

.hud-pill {
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  padding: 8px 14px;
  max-width: 300px;
}

.hud-prompt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-main);
  opacity: 0.8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hud-seed {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--forge-orange);
  margin-top: 2px;
}

.hud-crosshair {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(255,255,255,0.4);
  font-size: 18px;
  font-weight: 100;
  pointer-events: none;
}

.hud-bottom-center {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  transition: opacity 1s;
}

.controls-hint {
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  padding: 8px 18px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.hud-bottom-right {
  position: absolute;
  bottom: 16px; right: 16px;
}

#compass-canvas {
  width: 60px; height: 60px;
  opacity: 0.7;
}

.hud-top-right {
  position: absolute;
  top: 16px; right: 16px;
}

#minimap-canvas {
  width: 120px; height: 120px;
  border-radius: 8px;
  border: 1px solid var(--glass-border);
  background: rgba(0,0,0,0.5);
  opacity: 0.8;
}

/* Settings */
.settings-gear {
  position: absolute;
  bottom: 16px; left: 16px;
  z-index: 25;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  width: 44px; height: 44px;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.settings-gear:hover { color: var(--forge-orange); border-color: var(--forge-orange); }

.settings-drawer {
  position: absolute;
  top: 0; left: 0;
  width: 300px; height: 100%;
  background: rgba(10,10,18,0.92);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--glass-border);
  z-index: 30;
  padding: 24px 20px;
  overflow-y: auto;
  transition: transform 0.3s ease;
}

.settings-drawer.hidden {
  transform: translateX(-100%);
}

.settings-drawer h3 {
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: var(--forge-orange);
}

.settings-section {
  margin-bottom: 20px;
}

.settings-section h4 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 4px;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  gap: 8px;
}

.setting-row label {
  font-size: 0.82rem;
  color: var(--text-main);
  flex-shrink: 0;
}

.setting-row input[type="range"] {
  flex: 1;
  max-width: 100px;
  accent-color: var(--forge-orange);
}

.setting-row span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  min-width: 35px;
  text-align: right;
}

.seg-small button {
  padding: 4px 10px;
  font-size: 0.68rem;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 40px; height: 22px;
}

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

.toggle-switch .slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.1);
  border-radius: 22px;
  transition: 0.3s;
}

.toggle-switch .slider:before {
  content: "";
  position: absolute;
  height: 16px; width: 16px;
  left: 3px; bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: 0.3s;
}

.toggle-switch input:checked + .slider {
  background: var(--forge-orange);
}

.toggle-switch input:checked + .slider:before {
  transform: translateX(18px);
}

.action-btn {
  width: 100%;
  padding: 10px;
  margin-bottom: 8px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s;
}

.action-btn:hover {
  border-color: var(--forge-orange);
  background: rgba(255,107,43,0.1);
}

/* Mobile Controls */
.mobile-controls {
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 200px;
  z-index: 20;
}

.joystick-area {
  position: absolute;
  bottom: 30px; left: 30px;
}

.joystick-base {
  width: 100px; height: 100px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 2px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
}

.joystick-knob {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,107,43,0.4);
  border: 2px solid var(--forge-orange);
  transition: transform 0.1s;
}

.mobile-btn {
  position: absolute;
  width: 50px; height: 50px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 2px solid rgba(255,255,255,0.15);
  color: var(--text-main);
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.mobile-jump { bottom: 80px; right: 30px; }
.mobile-interact { bottom: 30px; right: 90px; }

.hidden { display: none !important; }

/* Footer */
#app-footer {
  position: fixed;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
}

#app-footer a {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-decoration: none;
  opacity: 0.4;
  transition: opacity 0.3s;
}

#app-footer a:hover { opacity: 0.8; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }

@media (max-width: 768px) {
  .logo-title { font-size: 2.2rem; }
  #prompt-input { height: 100px; font-size: 0.85rem; }
  .chip { font-size: 0.65rem; padding: 4px 10px; }
  .forge-button { padding: 12px 28px; font-size: 1rem; }
  .controls-hint { font-size: 0.6rem; white-space: normal; text-align: center; }
  .settings-drawer { width: 100%; border-right: none; border-top: 1px solid var(--glass-border); }
  #minimap-canvas { width: 80px; height: 80px; }
  .hud-pill { max-width: 200px; }
}