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

:root {
  --bg: #0a0a0a;
  --text: #ffffff;
  --text-muted: #888888;
  --accent: #ff6b6b;
  --accent-soft: rgba(255, 107, 107, 0.1);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow: hidden;
  text-transform: lowercase;
  letter-spacing: -0.02em;
}

#app {
  width: 100vw;
  height: 100vh;
  position: relative;
}

/* Screens */
.screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s ease, visibility 0.6s ease;
  z-index: 10;
  background: var(--bg);
}

.screen.active {
  opacity: 1;
  visibility: visible;
}

/* Loader */
.loader-content {
  text-align: center;
}

.loader-content p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.loader-bar {
  width: 200px;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
}

.loader-progress {
  width: 0%;
  height: 100%;
  background: var(--text);
  transition: width 0.3s ease;
}

/* Intro */
.intro-content {
  text-align: center;
  max-width: 400px;
  padding: 2rem;
}

.intro-content h1 {
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
}

.intro-content p {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.intro-content p:last-of-type {
  margin-bottom: 2.5rem;
}

/* Buttons */
.btn {
  font-family: inherit;
  font-size: 0.875rem;
  text-transform: lowercase;
  letter-spacing: -0.01em;
  padding: 0.875rem 2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: var(--text);
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn:hover {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.btn-next {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-next:hover {
  background: #ffffff;
  color: #0a0a0a;
  border-color: #ffffff;
}

.btn-yes {
  background: var(--text);
  color: var(--bg);
}

.btn-yes:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.btn-no {
  opacity: 0.5;
}

.btn-no:hover {
  opacity: 1;
}

.hidden {
  opacity: 0;
  pointer-events: none;
}

/* Scene container */
#scene-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#scene-container.active {
  opacity: 1;
  visibility: visible;
}

#canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Scene UI */
#scene-ui {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 2rem 3rem 7rem;
}

#scene-ui .btn {
  pointer-events: auto;
}

.scene-text {
  text-align: center;
  max-width: 500px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.scene-text.visible {
  opacity: 1;
  transform: translateY(0);
}

.scene-text p {
  font-size: 1.125rem;
  line-height: 1.7;
  color: #ffffff;
}

.scene-text .small {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0.5rem;
}

.scene-text .hint {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 1rem;
  opacity: 0.7;
  font-style: italic;
}

/* Quiz */
.quiz-content {
  text-align: center;
  max-width: 450px;
  padding: 2rem;
}

.quiz-counter {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  letter-spacing: 0.05em;
}

.quiz-content h2 {
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.quiz-option {
  font-family: inherit;
  font-size: 0.875rem;
  text-transform: lowercase;
  letter-spacing: -0.01em;
  padding: 0.875rem 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: transparent;
  color: var(--text);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
}

.quiz-option:hover {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.05);
}

/* Finale */
.finale-content {
  text-align: center;
  max-width: 450px;
  padding: 2rem;
}

.finale-content h1 {
  font-size: 1.75rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
}

.finale-content p {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.finale-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

/* Responsive */
@media (max-width: 600px) {
  .intro-content h1,
  .finale-content h1 {
    font-size: 1.5rem;
  }

  .scene-text p {
    font-size: 1rem;
  }

  #scene-ui {
    padding: 1.5rem 1.5rem 7rem;
  }
}