:root {
  --pink-50: #fff1f7;
  --pink-100: #fce7f3;
  --pink-200: #fbcfe8;
  --pink-300: #f9a8d4;
  --pink-500: #ec4899;
  --pink-700: #be185d;
  --lav-100: #ede9fe;
  --lav-200: #ddd6fe;
  --lav-500: #8b5cf6;
  --cyan-100: #cffafe;
  --cyan-200: #a5f3fc;
  --cyan-500: #06b6d4;
  --cyan-700: #0e7490;
  --green-300: #86efac;
  --green-500: #22c55e;
  --ink: #3b2a3d;
  --ink-soft: #6b5169;
  --paper: #fffaf6;
  --shadow: 0 18px 50px -12px rgba(180, 100, 160, 0.35), 0 4px 14px -4px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Vietnamese", "Inter", "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: linear-gradient(135deg, #ffe4f1 0%, #ffd6e8 25%, #f5e4ff 50%, #e0e7ff 75%, #cffafe 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 24px 16px 80px;
  background-size: 200% 200%;
  animation: bg-shift 24s ease-in-out infinite;
}

@keyframes bg-shift {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

#sparkles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(255,255,255,0.7) 1px, transparent 2px),
    radial-gradient(circle at 78% 32%, rgba(255,255,255,0.6) 1px, transparent 2px),
    radial-gradient(circle at 38% 78%, rgba(255,255,255,0.7) 1px, transparent 2px),
    radial-gradient(circle at 88% 88%, rgba(255,255,255,0.6) 1px, transparent 2px),
    radial-gradient(circle at 22% 62%, rgba(255,255,255,0.5) 1px, transparent 2px);
  background-size: 240px 240px;
  animation: sparkle-drift 20s linear infinite;
  opacity: 0.7;
}

@keyframes sparkle-drift {
  from { background-position: 0 0, 0 0, 0 0, 0 0, 0 0; }
  to   { background-position: 240px 240px, -240px 240px, 240px -240px, -240px -240px, 120px 240px; }
}

#app {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.screen {
  display: none;
  width: 100%;
  max-width: 460px;
  animation: fade-up 0.5s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.screen.active {
  display: block;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.card {
  background: var(--paper);
  border-radius: 28px;
  padding: 32px 24px;
  box-shadow: var(--shadow);
  text-align: center;
  position: relative;
}

.card.wide {
  max-width: 100%;
}

.card.welcome-card {
  padding: 40px 24px 32px;
}

h1 {
  font-size: 30px;
  margin: 8px 0 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--pink-500), var(--lav-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  font-size: 22px;
  margin: 8px 0 8px;
  font-weight: 700;
  color: var(--ink);
}

p { margin: 8px 0; line-height: 1.55; }
.lead { font-size: 17px; color: var(--ink); }
.sub  { color: var(--ink-soft); font-size: 15px; }
.tiny { color: var(--ink-soft); font-size: 12px; margin-top: 14px; opacity: 0.7; }
.hl   { color: var(--pink-500); font-weight: 700; }

.big-emoji {
  font-size: 64px;
  line-height: 1;
  display: inline-block;
}
.float  { animation: float 3s ease-in-out infinite; }
.bounce { animation: bounce 1.4s ease-in-out infinite; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
@keyframes bounce {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.12) rotate(-4deg); }
}

.btn {
  appearance: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  padding: 14px 24px;
  border-radius: 18px;
  margin-top: 18px;
  transition: transform 0.15s, box-shadow 0.15s, background 0.2s, opacity 0.2s;
  letter-spacing: -0.01em;
}
.btn:active { transform: scale(0.96); }
.btn[disabled] { opacity: 0.45; cursor: not-allowed; }

.btn.primary {
  background: linear-gradient(135deg, var(--pink-500), var(--lav-500));
  color: white;
  box-shadow: 0 8px 22px -6px rgba(236, 72, 153, 0.55);
}
.btn.primary:not([disabled]):hover {
  box-shadow: 0 12px 28px -6px rgba(236, 72, 153, 0.65);
}

.btn.ghost {
  background: transparent;
  color: var(--ink-soft);
  font-weight: 500;
}
.btn.ghost:hover { color: var(--pink-700); }
.btn.small { font-size: 13px; padding: 8px 14px; margin-top: 16px; }

/* Avatars */
.avatars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 22px;
}
.avatar {
  appearance: none;
  border: 2px solid transparent;
  background: white;
  border-radius: 22px;
  padding: 18px 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 14px -6px rgba(180, 100, 160, 0.3);
}
.avatar:hover {
  transform: translateY(-3px);
  border-color: var(--pink-300);
  box-shadow: 0 10px 24px -8px rgba(180, 100, 160, 0.45);
}
.face {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  background: var(--pink-100);
}
.face.guy    { background: linear-gradient(135deg, #dbeafe, #c7d2fe); }
.face.girl   { background: linear-gradient(135deg, #fce7f3, #fbcfe8); }
.face.shy    { background: linear-gradient(135deg, #fee2e2, #fecaca); }
.face.pouty  { background: linear-gradient(135deg, #fef3c7, #fde68a); }
.face.happy  { background: linear-gradient(135deg, #fef9c3, #fef08a); }

/* Doors */
.doors {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 22px 0 8px;
}
.door {
  appearance: none;
  border: none;
  cursor: pointer;
  border-radius: 22px;
  padding: 22px 12px;
  font-family: inherit;
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
  box-shadow: 0 10px 26px -8px rgba(0,0,0,0.2);
}
.door:hover { transform: translateY(-3px); }
.door-a {
  background: linear-gradient(160deg, #f9a8d4, #f472b6 60%, #a78bfa);
}
.door-b {
  background: linear-gradient(160deg, #67e8f9, #22d3ee 60%, #6366f1);
}
.door.opened {
  filter: saturate(0.7);
  position: relative;
}
.door.opened::after {
  content: "✓ đã mở";
  position: absolute;
  top: 10px;
  right: 12px;
  font-size: 11px;
  background: rgba(255,255,255,0.95);
  color: var(--ink);
  padding: 3px 8px;
  border-radius: 999px;
  font-weight: 600;
}
.door-emoji {
  font-size: 38px;
  line-height: 1;
}
.door-name {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.door-status {
  font-size: 11px;
  opacity: 0.92;
  background: rgba(255,255,255,0.2);
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 500;
}

/* Hints */
.door-label {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}
[data-screen="hint-a"] .door-label {
  background: linear-gradient(135deg, var(--pink-200), var(--lav-200));
  color: var(--pink-700);
}
[data-screen="hint-b"] .door-label {
  background: linear-gradient(135deg, var(--cyan-200), #bae6fd);
  color: var(--cyan-700);
}
.hints {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 14px 0 18px;
}
.hint {
  display: flex;
  align-items: center;
  gap: 14px;
  background: white;
  border-radius: 18px;
  padding: 14px 16px;
  text-align: left;
  box-shadow: 0 4px 14px -8px rgba(180, 100, 160, 0.25);
  opacity: 0;
  transform: translateY(8px);
  animation: fade-up 0.5s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}
.screen.active .hint-1 { animation-delay: 0.10s; }
.screen.active .hint-2 { animation-delay: 0.30s; }
.screen.active .hint-3 { animation-delay: 0.50s; }
.hint-emoji {
  font-size: 32px;
  flex-shrink: 0;
}
.hint-text {
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.vibe {
  margin-top: 8px;
  font-size: 12px;
  color: var(--ink-soft);
  font-style: italic;
  opacity: 0.85;
}

/* Vote */
.vote-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 22px;
}
.vote-btn {
  appearance: none;
  border: none;
  cursor: pointer;
  border-radius: 22px;
  padding: 24px 12px;
  font-family: inherit;
  color: white;
  font-size: 17px;
  font-weight: 700;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 10px 26px -8px rgba(0,0,0,0.2);
}
.vote-btn:hover { transform: translateY(-3px) scale(1.02); }
.vote-btn:active { transform: scale(0.96); }
.vote-a { background: linear-gradient(160deg, #f472b6, #a78bfa); }
.vote-b { background: linear-gradient(160deg, #22d3ee, #6366f1); }
.vote-emoji { font-size: 40px; line-height: 1; }

/* Cafes */
.cafes {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0 8px;
}
.cafe {
  appearance: none;
  border: 2px solid transparent;
  background: white;
  border-radius: 20px;
  padding: 16px;
  cursor: pointer;
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 14px;
  text-align: left;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 14px -6px rgba(180, 100, 160, 0.25);
}
.cafe:hover {
  transform: translateY(-2px);
  border-color: var(--pink-300);
  box-shadow: 0 10px 24px -8px rgba(180, 100, 160, 0.4);
}
.cafe:active { transform: scale(0.97); }
.cafe-emoji {
  font-size: 36px;
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--pink-100), var(--lav-100));
  border-radius: 18px;
}
.cafe-body { flex: 1; min-width: 0; }
.cafe-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.cafe-addr {
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: 2px;
}
.cafe-vibe {
  font-size: 12px;
  color: var(--pink-700);
  margin-top: 6px;
  font-weight: 500;
}

/* Confetti for done screen */
.confetti-area {
  position: relative;
  height: 80px;
  margin-top: 8px;
  pointer-events: none;
}
.confetti-piece {
  position: absolute;
  width: 8px;
  height: 12px;
  border-radius: 2px;
  animation: confetti-fall 2.4s ease-out forwards;
  top: -20px;
}
@keyframes confetti-fall {
  0%   { transform: translateY(-20px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(120px) rotate(540deg); opacity: 0; }
}

/* Share */
.share-block {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed #f3e8ff;
}
.share-toast {
  display: inline-block;
  margin-left: 10px;
  font-size: 13px;
  color: var(--green-500);
  opacity: 0;
  transition: opacity 0.3s;
  font-weight: 600;
}
.share-toast.on { opacity: 1; }

/* Footer */
.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 11px;
  color: var(--ink-soft);
  padding: 10px;
  opacity: 0.5;
  pointer-events: none;
}

/* Mobile tuning */
@media (max-width: 380px) {
  h1 { font-size: 26px; }
  .card { padding: 26px 18px; }
  .face { width: 56px; height: 56px; font-size: 30px; }
  .avatar { padding: 14px 8px; font-size: 14px; }
  .door { padding: 18px 8px; }
  .door-name { font-size: 15px; }
}