/* =============================================
   인연 (In-Yeon) — Design System & Styles
   ============================================= */

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

:root {
  /* Colors */
  --bg-deep: #06061a;
  --bg-mid: #0d0d2b;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.08);
  --surface-card: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.12);

  --text-primary: #f0eaff;
  --text-secondary: #a89cc8;
  --text-muted: #6b5f8a;

  --accent-purple: #a855f7;
  --accent-pink: #ec4899;
  --accent-blue: #6366f1;
  --accent-gold: #f59e0b;
  --accent-teal: #14b8a6;

  --gradient-main: linear-gradient(135deg, #a855f7, #ec4899);
  --gradient-subtle: linear-gradient(135deg, rgba(168,85,247,0.2), rgba(236,72,153,0.2));
  --gradient-card: linear-gradient(180deg, rgba(168,85,247,0.08) 0%, rgba(236,72,153,0.04) 100%);

  /* Typography */
  --font-sans: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Noto Serif KR', Georgia, serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-deep);
  background-image: radial-gradient(ellipse at 50% 0%, rgba(168, 85, 247, 0.08) 0%, transparent 60%);
  color: var(--text-primary);
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* --- App Container --- */
#app {
  position: relative;
  z-index: 1;
  min-height: 100dvh;
}

/* --- Screen System --- */
.screen {
  display: none;
  min-height: 100dvh;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: var(--space-lg);
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.screen.active {
  display: flex;
  animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(168, 85, 247, 0.3); }
  50% { box-shadow: 0 0 40px rgba(168, 85, 247, 0.6), 0 0 60px rgba(236, 72, 153, 0.3); }
}

@keyframes typewriter {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   SCREEN: INTRO
   ============================================ */
.intro-content {
  text-align: center;
  width: 100%;
  animation: slideUp 0.8s ease-out;
}

.intro-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--gradient-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent-purple);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xl);
}

.intro-title {
  margin-bottom: var(--space-md);
}

.title-accent {
  font-family: var(--font-serif);
  font-size: 4rem;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  display: block;
}

.intro-subtitle {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  font-weight: 400;
}

.intro-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
}

.intro-description strong {
  color: var(--text-primary);
  font-weight: 700;
}

/* Primary Button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  width: 100%;
  max-width: 320px;
  padding: 18px 32px;
  background: var(--gradient-main);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 24px rgba(168, 85, 247, 0.35);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 32px rgba(168, 85, 247, 0.5);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:active {
  transform: scale(0.97);
  box-shadow: 0 2px 16px rgba(168, 85, 247, 0.3);
}

.intro-time {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: var(--space-md);
}

/* Methodology Toggle */
.methodology-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--space-xl);
  padding: 10px 18px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 400;
  cursor: pointer;
  transition: all 0.3s ease;
}

.methodology-toggle:hover {
  border-color: var(--accent-purple);
  color: var(--text-secondary);
  background: rgba(168, 85, 247, 0.05);
}

.methodology-toggle.active {
  border-color: var(--accent-purple);
  color: var(--accent-purple);
}

.methodology-chevron {
  transition: transform 0.3s ease;
}

.methodology-toggle.active .methodology-chevron {
  transform: rotate(180deg);
}

/* Methodology Panel */
.methodology-panel {
  width: 100%;
  margin-top: var(--space-lg);
  animation: slideUp 0.4s ease-out;
}

.methodology-card {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.methodology-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.methodology-item:last-child {
  border-bottom: none;
}

.methodology-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  width: 28px;
  text-align: center;
  padding-top: 2px;
}

.methodology-item h4 {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.methodology-item p {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.methodology-item p strong {
  color: var(--text-secondary);
  font-weight: 600;
}

.methodology-note {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: var(--space-md);
  opacity: 0.7;
}

/* Result Methodology Badge */
.result-methodology-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: var(--space-md) var(--space-lg);
  margin-top: var(--space-md);
  border-top: 1px solid var(--border);
  animation: slideUp 0.6s ease-out 0.9s both;
}

.result-methodology-badge svg {
  flex-shrink: 0;
  color: var(--accent-purple);
  opacity: 0.5;
}

.result-methodology-badge span {
  font-size: 0.65rem;
  color: var(--text-muted);
  line-height: 1.5;
  opacity: 0.7;
}

/* ============================================
   SCREEN: QUIZ
   ============================================ */
#screen-quiz {
  padding-top: var(--space-lg);
  justify-content: flex-start;
}

.quiz-header {
  width: 100%;
  margin-bottom: var(--space-2xl);
  padding-top: var(--space-md);
}

.progress-bar {
  width: 100%;
  height: 4px;
  background: var(--surface);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.progress-fill {
  height: 100%;
  background:
    linear-gradient(
      90deg,
      transparent 0%,
      rgba(255,255,255,0.35) 50%,
      transparent 100%
    ),
    var(--gradient-main);
  background-size: 200% 100%, 100% 100%;
  animation: shimmer 2s linear infinite;
  border-radius: var(--radius-full);
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0%;
}

.progress-text {
  text-align: right;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.quiz-body {
  width: 100%;
  flex: 1;
  display: flex;
  align-items: center;
}

.question-container {
  width: 100%;
}

.question-container.entering {
  animation: slideUpScale 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes slideUpScale {
  from { opacity: 0; transform: translateY(28px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.q-situation {
  font-size: 0.85rem;
  color: var(--accent-purple);
  margin-bottom: var(--space-md);
  font-weight: 500;
  line-height: 1.6;
}

.q-text {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: var(--space-2xl);
  color: var(--text-primary);
  word-break: keep-all;
}

.options {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.option-btn {
  width: 100%;
  padding: 18px 20px;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.5;
  text-align: left;
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.option-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-subtle);
  opacity: 0;
  transition: opacity 0.25s ease;
}

@media (hover: hover) {
  .option-btn:hover {
    border-color: var(--accent-purple);
    background: var(--surface-hover);
    transform: translateY(-1px);
  }

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

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

.option-btn.selected {
  border-color: var(--accent-purple);
  background: rgba(168, 85, 247, 0.15);
  box-shadow: 0 0 0 1px var(--accent-purple), 0 4px 16px rgba(168, 85, 247, 0.2);
}

.option-btn span {
  position: relative;
  z-index: 1;
}

/* ============================================
   SCREEN: LOADING
   ============================================ */
.loading-content {
  text-align: center;
  width: 100%;
}

.loading-orb {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--space-2xl);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.orb-core {
  width: 24px;
  height: 24px;
  background: var(--gradient-main);
  border-radius: 50%;
  animation: glow 2s ease-in-out infinite;
}

.orb-ring {
  position: absolute;
  border: 1px solid;
  border-radius: 50%;
  animation: spin linear infinite;
}

.ring-1 {
  width: 60px;
  height: 60px;
  border-color: rgba(168, 85, 247, 0.3);
  animation-duration: 3s;
  transform: rotateX(15deg) rotateY(-10deg);
}

.ring-2 {
  width: 90px;
  height: 90px;
  border-color: rgba(236, 72, 153, 0.2);
  animation-duration: 5s;
  animation-direction: reverse;
  transform: rotateX(-20deg) rotateY(12deg);
}

.ring-3 {
  width: 120px;
  height: 120px;
  border-color: rgba(99, 102, 241, 0.15);
  animation-duration: 7s;
  transform: rotateX(10deg) rotateY(5deg);
}

.loading-text {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  animation: pulse 2s ease-in-out infinite;
  min-height: 1.5em;
}

.loading-bar {
  width: 200px;
  height: 3px;
  background: var(--surface);
  border-radius: var(--radius-full);
  margin: 0 auto;
  overflow: hidden;
}

.loading-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient-main);
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
}

/* ============================================
   SCREEN: RESULT
   ============================================ */
#screen-result,
#screen-gunghap {
  padding: var(--space-lg) var(--space-md);
  justify-content: flex-start;
  align-items: stretch;
}

.result-scroll {
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  padding-bottom: var(--space-3xl);
}

.result-header {
  text-align: center;
  padding: var(--space-xl) 0;
}

.result-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Result Card */
.result-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: var(--space-xl);
  animation: scaleIn 0.6s ease-out;
  position: relative;
  border: 1px solid rgba(168, 85, 247, 0.35);
}

.result-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--radius-xl);
  padding: 1px;
  background: var(--type-gradient, var(--gradient-main));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* html2canvas fix */
.result-card.exporting {
  border: 1px solid var(--accent-purple);
  background: var(--bg-deep); /* Solid background to prevent transparency issues */
}
.result-card.exporting::before {
  display: none !important;
}

.result-card-inner {
  padding: var(--space-2xl) var(--space-lg);
  background: var(--gradient-card);
  backdrop-filter: blur(20px);
  text-align: center;
  position: relative;
}

/* html2canvas fix for blur */
.result-card.exporting .result-card-inner {
  backdrop-filter: none !important;
  background: rgba(13, 13, 43, 0.8) !important; /* var(--bg-mid) with opacity */
}

.result-card-inner::after {
  content: 'inyeon.kr';
  position: absolute;
  bottom: var(--space-md);
  right: var(--space-lg);
  font-size: 0.65rem;
  font-weight: 600;
  color: rgba(168, 85, 247, 0.15);
  letter-spacing: 0.08em;
  pointer-events: none;
  user-select: none;
}

.result-emoji {
  font-size: 4rem;
  margin-bottom: var(--space-md);
  animation: float 3s ease-in-out infinite;
}

.result-type-name {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 900;
  margin-bottom: var(--space-sm);
  background: var(--type-gradient, var(--gradient-main));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.result-tagline {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: var(--space-lg);
}

.result-divider {
  width: 40px;
  height: 2px;
  background: var(--gradient-main);
  margin: 0 auto var(--space-lg);
  border-radius: var(--radius-full);
}

.result-narrative {
  text-align: left;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text-secondary);
  word-break: keep-all;
}

.result-narrative p {
  margin-bottom: var(--space-md);
}

.result-narrative p:last-child {
  margin-bottom: 0;
}

.narrative-line {
  display: block;
  animation: typewriter 0.4s ease-out forwards;
  opacity: 0;
}

/* Trait Boxes */
.result-traits {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  animation: slideUp 0.6s ease-out 0.3s both;
}

.trait-box {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-purple);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-md);
}

.trait-strength {
  border-left-color: var(--accent-teal);
}

.trait-weakness {
  border-left-color: var(--accent-pink);
}

.trait-box h3 {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.trait-box ul {
  list-style: none;
}

.trait-box li {
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: var(--space-xs) 0;
  line-height: 1.5;
}

.trait-box li::before {
  content: '· ';
  color: var(--accent-purple);
  font-weight: 700;
}

/* Match Info */
.result-match-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  animation: slideUp 0.6s ease-out 0.5s both;
}

.match-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
}

.match-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.match-value {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Share Section */
.share-section {
  text-align: center;
  animation: slideUp 0.6s ease-out 0.7s both;
}

.share-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.share-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.share-desc strong {
  color: var(--text-primary);
}

.btn-gunghap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  width: 100%;
  padding: 18px 32px;
  background: var(--gradient-main);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 24px rgba(168, 85, 247, 0.35);
  margin-bottom: var(--space-xl);
}

.btn-gunghap:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 32px rgba(168, 85, 247, 0.5);
}

.btn-gunghap:active {
  transform: translateY(0) scale(0.97);
}

.share-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  justify-content: center;
}

.btn-share {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: var(--space-md) var(--space-lg);
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.25s ease;
  flex: 1;
}

.btn-share:hover {
  border-color: var(--accent-purple);
  color: var(--text-primary);
  background: var(--surface-hover);
}

.btn-share:active {
  transform: scale(0.96);
}

/* ============================================
   SCREEN: GUNGHAP
   ============================================ */
.gunghap-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: var(--space-xl);
  animation: scaleIn 0.6s ease-out;
  position: relative;
  background: var(--gradient-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-light);
  padding: var(--space-2xl) var(--space-lg);
}

.gunghap-pair {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.gunghap-person {
  text-align: center;
}

.gunghap-emoji {
  font-size: 3rem;
  margin-bottom: var(--space-sm);
}

.gunghap-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}

.gunghap-heart {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--gradient-main);
  animation: glow 2s ease-in-out infinite;
}

.gunghap-heart span {
  color: white;
  font-weight: 900;
  font-size: 0.85rem;
}

.gunghap-story {
  text-align: left;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text-secondary);
  word-break: keep-all;
}

.gunghap-story p {
  margin-bottom: var(--space-md);
}

/* ============================================
   MODAL
   ============================================ */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.modal.hidden {
  display: none;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--bg-mid);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  max-width: 380px;
  width: 100%;
  text-align: center;
  animation: scaleIn 0.3s ease-out;
}

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-xs);
  line-height: 1;
}

.modal-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.modal-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.modal-link-box {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.modal-link-box input {
  flex: 1;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  outline: none;
}

.btn-modal-copy {
  padding: 12px 20px;
  background: var(--gradient-main);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-modal-copy:hover {
  opacity: 0.9;
}

.modal-copied {
  font-size: 0.85rem;
  color: var(--accent-teal);
  font-weight: 500;
}

/* ============================================
   TOAST
   ============================================ */
.toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(20, 184, 166, 0.95);
  color: white;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 200;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
  white-space: nowrap;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 380px) {
  .title-accent {
    font-size: 3.2rem;
  }

  .q-text {
    font-size: 1.2rem;
  }

  .option-btn {
    padding: 16px 18px;
    font-size: 0.9rem;
  }

  .result-card-inner {
    padding: var(--space-xl) var(--space-md);
  }

  .result-type-name {
    font-size: 1.5rem;
  }

  .share-buttons {
    flex-wrap: wrap;
  }
}

/* 8. Share buttons 2-col grid on very small screens */
@media (max-width: 340px) {
  .share-buttons {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 481px) {
  .screen {
    padding: var(--space-2xl);
  }

  .title-accent {
    font-size: 5rem;
  }

  .q-text {
    font-size: 1.5rem;
  }
}

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

/* Scrollbar styling for result */
.result-scroll {
  /* 2. Smooth scrolling for result pages */
  scroll-behavior: smooth;
}

/* Selection color */
::selection {
  background: rgba(168, 85, 247, 0.3);
  color: white;
}