/* ============================================
   Relationship Reality Check - Styles
   Dark romantic theme: pink/red/purple
   ============================================ */

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

:root {
  --bg-primary: #0d0a14;
  --bg-secondary: #161122;
  --bg-card: #1c1530;
  --bg-card-hover: #241c3d;

  --pink-hot: #ff2d78;
  --pink-soft: #ff6b9d;
  --pink-glow: rgba(255, 45, 120, 0.3);
  --red-deep: #e5183a;
  --purple-primary: #9b59f0;
  --purple-soft: #b07cf7;
  --purple-glow: rgba(155, 89, 240, 0.25);

  --text-primary: #f0eaf8;
  --text-secondary: #a89bc2;
  --text-muted: #6b5d83;

  --gradient-hot: linear-gradient(135deg, var(--pink-hot), var(--purple-primary));
  --gradient-soft: linear-gradient(135deg, var(--pink-soft), var(--purple-soft));
  --gradient-card: linear-gradient(145deg, var(--bg-card), var(--bg-secondary));

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --font-sans: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

html, body {
  width: 100%;
  min-height: 100vh;
  overflow-x: hidden;
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
}

body {
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(155, 89, 240, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(255, 45, 120, 0.06) 0%, transparent 60%);
}

#app {
  width: 100%;
  min-height: 100vh;
  max-width: 480px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

/* --- Screens --- */
.screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transform: translateX(30px);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth), visibility 0s linear 0.4s;
}

.screen.active {
  position: relative;
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth), visibility 0s linear 0s;
}

.screen.exit-left {
  transform: translateX(-30px);
  opacity: 0;
}

/* ============================================
   Screen 1: Intro
   ============================================ */

.intro-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 40px 24px;
  text-align: center;
}

.intro-emoji-header {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  animation: floatEmoji 3s ease-in-out infinite;
}

.intro-emoji-header span {
  font-size: 56px;
  filter: drop-shadow(0 4px 20px var(--pink-glow));
}

.emoji-broken-heart {
  animation: heartPulse 2s ease-in-out infinite;
}

.emoji-bandaid {
  animation: heartPulse 2s ease-in-out infinite 0.3s;
}

@keyframes floatEmoji {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes heartPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.intro-title {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  background: var(--gradient-hot);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.intro-tagline {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.5;
}

.intro-tagline em {
  color: var(--pink-soft);
  font-style: italic;
}

.intro-decoration {
  position: relative;
  width: 80px;
  height: 80px;
  margin-bottom: 40px;
}

.pulse-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  border: 2px solid var(--pink-hot);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: pulseRing 2.5s ease-out infinite;
  opacity: 0;
}

.pulse-ring.delay-1 { animation-delay: 0.8s; }
.pulse-ring.delay-2 { animation-delay: 1.6s; }

@keyframes pulseRing {
  0% {
    width: 20px;
    height: 20px;
    opacity: 0.7;
    border-color: var(--pink-hot);
  }
  100% {
    width: 100px;
    height: 100px;
    opacity: 0;
    border-color: var(--purple-primary);
  }
}

/* --- Buttons --- */
.cta-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 320px;
  padding: 18px 32px;
  border: none;
  border-radius: var(--radius-xl);
  background: var(--gradient-hot);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow:
    0 4px 24px var(--pink-glow),
    0 1px 4px rgba(0, 0, 0, 0.3);
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
  transition: left 0.5s ease;
}

.cta-button:hover::before {
  left: 100%;
}

.cta-button:active {
  transform: scale(0.97);
  box-shadow: 0 2px 12px var(--pink-glow);
}

.cta-arrow {
  font-size: 1.3rem;
  transition: transform var(--transition-fast);
}

.cta-button:hover .cta-arrow {
  transform: translateX(4px);
}

.secondary-button {
  width: 100%;
  max-width: 320px;
  padding: 16px 32px;
  border: 2px solid var(--bg-card-hover);
  border-radius: var(--radius-xl);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.secondary-button:hover {
  border-color: var(--purple-primary);
  color: var(--text-primary);
  background: rgba(155, 89, 240, 0.08);
}

.secondary-button:active {
  transform: scale(0.97);
}

.intro-disclaimer {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

/* ============================================
   Screen 2: Quiz
   ============================================ */

.quiz-header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 16px 20px 12px;
  background: linear-gradient(180deg, var(--bg-primary) 60%, transparent 100%);
}

.progress-bar-container {
  width: 100%;
  height: 6px;
  background: var(--bg-card);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 10px;
}

.progress-bar {
  height: 100%;
  width: 0;
  background: var(--gradient-hot);
  border-radius: 3px;
  transition: width var(--transition-smooth);
  box-shadow: 0 0 12px var(--pink-glow);
}

.quiz-counter {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
}

.quiz-counter #question-current {
  color: var(--pink-soft);
  font-weight: 600;
}

.quiz-track {
  flex: 1;
  position: relative;
  overflow: hidden;
}

/* --- Question Slides --- */
.question-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 20px 40px;
  opacity: 0;
  transform: translateX(100%);
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
  pointer-events: none;
}

.question-slide.active {
  position: relative;
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.question-slide.exit-left {
  transform: translateX(-100%);
  opacity: 0;
}

.question-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--purple-soft);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.question-text {
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin-bottom: 28px;
  color: var(--text-primary);
}

.answers-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.answer-option {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 16px 18px;
  border: 2px solid var(--bg-card-hover);
  border-radius: var(--radius-md);
  background: var(--gradient-card);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.4;
  text-align: left;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.answer-option:hover {
  border-color: var(--purple-primary);
  background: var(--bg-card-hover);
  box-shadow: 0 2px 16px var(--purple-glow);
}

.answer-option:active {
  transform: scale(0.98);
}

.answer-option.selected {
  border-color: var(--pink-hot);
  background: rgba(255, 45, 120, 0.1);
  box-shadow: 0 2px 20px var(--pink-glow);
}

.answer-option.selected .answer-dot {
  background: var(--pink-hot);
  border-color: var(--pink-hot);
  box-shadow: 0 0 12px var(--pink-glow);
}

.answer-option.selected .answer-dot::after {
  opacity: 1;
  transform: scale(1);
}

.answer-dot {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border: 2px solid var(--text-muted);
  border-radius: 50%;
  position: relative;
  transition: border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.answer-dot::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  background: #fff;
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  transition: opacity var(--transition-fast), transform var(--transition-bounce);
}

.answer-label {
  flex: 1;
}

/* ============================================
   Screen 3: Results
   ============================================ */

.results-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 40px 24px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.results-emoji {
  font-size: 72px;
  margin-bottom: 16px;
  animation: resultsBounce 0.8s var(--transition-bounce) forwards;
  opacity: 0;
  transform: scale(0.3);
}

@keyframes resultsBounce {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.results-tier {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  background: var(--gradient-hot);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.3s;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Health Bar --- */
.health-bar-wrapper {
  width: 100%;
  max-width: 320px;
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.5s;
}

.health-bar-track {
  width: 100%;
  height: 14px;
  background: var(--bg-card);
  border-radius: 7px;
  overflow: hidden;
  margin-bottom: 10px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

.health-bar-fill {
  height: 100%;
  width: 0;
  border-radius: 7px;
  transition: width 1.5s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: 0 0 20px var(--pink-glow);
}

.health-bar-fill.tier-0 {
  background: linear-gradient(90deg, #6b5d83, #9b59f0);
}

.health-bar-fill.tier-1 {
  background: linear-gradient(90deg, #e5183a, #ff6b9d);
}

.health-bar-fill.tier-2 {
  background: linear-gradient(90deg, #ff6b9d, #ffb347);
}

.health-bar-fill.tier-3 {
  background: linear-gradient(90deg, #ff2d78, #b07cf7);
}

.health-bar-fill.tier-4 {
  background: linear-gradient(90deg, #ff2d78, #9b59f0, #00d4ff);
}

.health-percentage {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

/* --- Results Details --- */
.results-tagline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 28px;
  max-width: 320px;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.7s;
}

.results-advice-card {
  width: 100%;
  max-width: 340px;
  padding: 20px 22px;
  background: var(--gradient-card);
  border: 1px solid var(--bg-card-hover);
  border-radius: var(--radius-lg);
  margin-bottom: 36px;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.9s;
}

.advice-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--pink-soft);
  margin-bottom: 10px;
  padding: 4px 10px;
  background: rgba(255, 107, 157, 0.1);
  border-radius: var(--radius-sm);
}

.results-advice {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  font-style: italic;
}

/* --- Results Actions --- */
.results-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
  max-width: 320px;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 1.1s;
}

.share-button {
  background: var(--gradient-soft);
}

/* --- Confetti Canvas --- */
#confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* ============================================
   Utilities & Misc
   ============================================ */

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--bg-card-hover);
  border-radius: 2px;
}

/* Selection */
::selection {
  background: var(--pink-hot);
  color: #fff;
}

/* Safe area padding for devices with notches */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .intro-container,
  .results-container {
    padding-bottom: calc(40px + env(safe-area-inset-bottom));
  }
}

/* Small screen adjustments */
@media (max-height: 680px) {
  .intro-emoji-header span {
    font-size: 44px;
  }

  .intro-title {
    font-size: 2rem;
  }

  .intro-decoration {
    margin-bottom: 28px;
  }

  .results-emoji {
    font-size: 56px;
  }

  .results-tier {
    font-size: 1.5rem;
  }

  .health-percentage {
    font-size: 1.8rem;
  }
}

/* Large screens */
@media (min-width: 481px) {
  #app {
    border-left: 1px solid var(--bg-card);
    border-right: 1px solid var(--bg-card);
  }
}