/* ============================================
   ENERGY MATCH — Cyberpunk Neon Dark Theme
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg-primary: #06060d;
  --bg-secondary: #0d0d1a;
  --bg-card: rgba(15, 15, 30, 0.85);
  --bg-card-hover: rgba(20, 20, 45, 0.95);
  --bg-glass: rgba(255, 255, 255, 0.03);

  --neon-green: #00ff88;
  --neon-cyan: #00e5ff;
  --neon-magenta: #ff2d6b;
  --neon-purple: #a855f7;
  --neon-yellow: #ffd600;
  --neon-orange: #ff6b2d;

  --text-primary: #e8e8f0;
  --text-secondary: #8888aa;
  --text-muted: #555570;

  --border-glow: rgba(0, 229, 255, 0.15);

  --font-display: 'Orbitron', monospace;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* --- Animated Background --- */
.bg-particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bg-particles .particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat linear infinite;
}

@keyframes particleFloat {
  0% {
    opacity: 0;
    transform: translateY(100vh) scale(0);
  }

  10% {
    opacity: 1;
  }

  90% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform: translateY(-10vh) scale(1);
  }
}

/* Subtle grid overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
  pointer-events: none;
}

/* --- App Container --- */
.app-container {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
  min-height: 100vh;
}

/* --- Header --- */
.app-header {
  text-align: center;
  margin-bottom: 2.5rem;
  animation: fadeInDown 0.8s ease-out;
}

.logo-glow {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  filter: drop-shadow(0 0 20px var(--neon-cyan)) drop-shadow(0 0 40px var(--neon-cyan));
  animation: pulse 2s ease-in-out infinite;
}

.app-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 900;
  letter-spacing: 4px;
  color: var(--text-primary);
  text-shadow: 0 0 30px rgba(0, 229, 255, 0.3);
}

.app-title .accent {
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.app-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
  font-weight: 300;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* --- Progress Bar --- */
.progress-container {
  position: relative;
  margin-bottom: 2.5rem;
  padding: 0 0.5rem;
}

.progress-bar {
  height: 3px;
  background: var(--bg-card);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.progress-bar::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: var(--progress, 0%);
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-green));
  border-radius: 4px;
  transition: width var(--transition-smooth);
  box-shadow: 0 0 10px var(--neon-cyan), 0 0 20px rgba(0, 229, 255, 0.3);
}

.progress-steps {
  display: flex;
  justify-content: space-between;
  margin-top: 0.75rem;
}

.step-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition-smooth);
}

.step-dot.active {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.4);
  background: rgba(0, 229, 255, 0.1);
}

.step-dot.completed {
  border-color: var(--neon-green);
  color: var(--neon-green);
  background: rgba(0, 255, 136, 0.1);
  box-shadow: 0 0 12px rgba(0, 255, 136, 0.3);
}

/* --- Quiz Container --- */
.quiz-container {
  position: relative;
  min-height: 350px;
}

/* --- Question Card --- */
.question-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  animation: fadeSlideIn var(--transition-slow) forwards;
  position: relative;
  overflow: hidden;
}

.question-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), var(--neon-green), transparent);
}

.question-card.exit {
  animation: fadeSlideOut 0.35s ease-in forwards;
}

.question-number {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--neon-cyan);
  margin-bottom: 0.75rem;
}

.question-text {
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.5rem;
}

.question-subtitle {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
  font-weight: 300;
}

/* --- Answer Buttons --- */
.answers-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.answer-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-glass);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  position: relative;
  overflow: hidden;
}

.answer-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.08), rgba(0, 255, 136, 0.05));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.answer-btn:hover {
  border-color: var(--neon-cyan);
  transform: translateX(4px);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.15), inset 0 0 20px rgba(0, 229, 255, 0.03);
}

.answer-btn:hover::before {
  opacity: 1;
}

.answer-btn:active {
  transform: translateX(2px) scale(0.99);
}

.answer-key {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--neon-cyan);
  transition: all var(--transition-fast);
}

.answer-btn:hover .answer-key {
  background: rgba(0, 229, 255, 0.2);
  border-color: var(--neon-cyan);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
}

.answer-label {
  position: relative;
  z-index: 1;
}

.answer-label strong {
  display: block;
  margin-bottom: 2px;
}

.answer-label small {
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 300;
}

/* --- Result Container --- */
.result-container {
  animation: fadeSlideIn var(--transition-slow) forwards;
}

.result-container.hidden {
  display: none;
}

/* Winner card */
.winner-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.winner-card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-green), var(--neon-magenta), var(--neon-cyan));
  background-size: 300% 300%;
  border-radius: var(--radius-xl);
  z-index: -1;
  animation: borderGlow 4s ease-in-out infinite;
}

.winner-card::after {
  content: '';
  position: absolute;
  inset: 2px;
  background: var(--bg-card);
  border-radius: calc(var(--radius-xl) - 2px);
  z-index: -1;
}

.winner-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.2rem;
  background: linear-gradient(135deg, rgba(0, 255, 136, 0.15), rgba(0, 229, 255, 0.15));
  border: 1px solid rgba(0, 255, 136, 0.3);
  border-radius: 50px;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--neon-green);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.winner-emoji {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.2));
}

.winner-name {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 4vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 0.25rem;
  background: linear-gradient(135deg, var(--text-primary), var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.winner-brand {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 1.25rem;
}

.winner-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 480px;
  margin: 0 auto 1.5rem;
  font-weight: 300;
}

/* Tags */
.tags-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.85rem;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 500;
  border: 1px solid;
}

.tag-sugar-yes {
  color: var(--neon-orange);
  border-color: rgba(255, 107, 45, 0.3);
  background: rgba(255, 107, 45, 0.08);
}

.tag-sugar-no {
  color: var(--neon-green);
  border-color: rgba(0, 255, 136, 0.3);
  background: rgba(0, 255, 136, 0.08);
}

.tag-caffeine-standard {
  color: var(--neon-cyan);
  border-color: rgba(0, 229, 255, 0.3);
  background: rgba(0, 229, 255, 0.08);
}

.tag-caffeine-high {
  color: var(--neon-magenta);
  border-color: rgba(255, 45, 107, 0.3);
  background: rgba(255, 45, 107, 0.08);
}

.tag-caffeine-low {
  color: var(--text-secondary);
  border-color: rgba(136, 136, 170, 0.3);
  background: rgba(136, 136, 170, 0.08);
}

.tag-volume {
  color: var(--neon-purple);
  border-color: rgba(168, 85, 247, 0.3);
  background: rgba(168, 85, 247, 0.08);
}

.tag-tier-premium {
  color: var(--neon-yellow);
  border-color: rgba(255, 214, 0, 0.3);
  background: rgba(255, 214, 0, 0.08);
}

.tag-tier-mid {
  color: var(--neon-cyan);
  border-color: rgba(0, 229, 255, 0.2);
  background: rgba(0, 229, 255, 0.06);
}

.tag-tier-budget {
  color: var(--text-secondary);
  border-color: rgba(136, 136, 170, 0.2);
  background: rgba(136, 136, 170, 0.06);
}

/* Score display */
.score-display {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 2px;
  margin-top: 0.5rem;
}

/* --- Alternatives Section --- */
.alternatives-title {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 1rem;
}

.alternatives-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.alt-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-fast);
}

.alt-card:hover {
  border-color: rgba(0, 229, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.alt-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
  opacity: 0.5;
}

.alt-rank {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.alt-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
}

.alt-brand {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.alt-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
  font-weight: 300;
}

.alt-score {
  font-family: var(--font-display);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  margin-top: 0.5rem;
}

.alt-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: 0.5rem;
}

.alt-tags .tag {
  font-size: 0.68rem;
  padding: 0.2rem 0.6rem;
}

/* --- CTA Buy Button --- */
.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 2.2rem;
  margin-top: 1.25rem;
  background: linear-gradient(135deg, var(--neon-green), var(--neon-cyan));
  border: none;
  border-radius: 50px;
  color: var(--bg-primary);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.25);
}

.cta-btn:hover {
  transform: scale(1.06);
  box-shadow: 0 0 35px rgba(0, 255, 136, 0.45), 0 0 60px rgba(0, 229, 255, 0.2);
}

.cta-btn:active {
  transform: scale(0.97);
}

.cta-btn-sm {
  padding: 0.55rem 1.4rem;
  font-size: 0.72rem;
  margin-top: 0.75rem;
  letter-spacing: 1px;
  width: 100%;
}

/* --- Restart Button --- */
.restart-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin: 0 auto;
  padding: 0.9rem 2.5rem;
  background: transparent;
  border: 1px solid var(--neon-cyan);
  border-radius: 50px;
  color: var(--neon-cyan);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.restart-btn:hover {
  background: rgba(0, 229, 255, 0.1);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
  transform: scale(1.03);
}

.restart-btn:active {
  transform: scale(0.98);
}

/* --- Animations --- */
@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeSlideOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }

  to {
    opacity: 0;
    transform: translateY(-20px);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-15px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.05);
  }
}

@keyframes borderGlow {

  0%,
  100% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }
}

/* --- Responsive --- */
@media (max-width: 600px) {
  .app-container {
    padding: 1.5rem 1rem 3rem;
  }

  .question-card {
    padding: 1.5rem 1.25rem;
  }

  .winner-card {
    padding: 2rem 1.25rem;
  }

  .alternatives-grid {
    grid-template-columns: 1fr;
  }

  .answer-btn {
    padding: 0.85rem 1rem;
  }

  .step-dot {
    width: 28px;
    height: 28px;
    font-size: 0.65rem;
  }
}

/* --- Utility --- */
.hidden {
  display: none !important;
}

/* Intro animation for quiz start */
.quiz-intro {
  text-align: center;
  padding: 3rem 1.5rem;
  animation: fadeSlideIn var(--transition-slow) forwards;
}

.quiz-intro h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.quiz-intro p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.start-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2.5rem;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-green));
  border: none;
  border-radius: 50px;
  color: var(--bg-primary);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.3);
}

.start-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 40px rgba(0, 229, 255, 0.5);
}

.start-btn:active {
  transform: scale(0.98);
}