* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: radial-gradient(circle at top, #ffe4f0 0%, #ffd1dc 30%, #ffc4e1 60%, #ff9fb5 100%);
  text-align: center;
  color: #2c1b25;
  min-height: 100vh;
  overflow: hidden;
}

/* Floating hearts canvas */
#floatingHearts {
  position: fixed;
  inset: 0;
  z-index: -2;
}

/* Soft gradient overlay */
#heartBg {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 10% 0%, rgba(255,255,255,0.55), transparent 50%),
              radial-gradient(circle at 90% 100%, rgba(255,255,255,0.4), transparent 55%);
  opacity: 0.9;
  z-index: -1;
}

/* Glow edges */
.pageGlow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  box-shadow: 0 0 100px rgba(255, 105, 180, 0.6) inset;
  z-index: -1;
}

.screen {
  display: none;
  padding: 40px 15px 60px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.screen.active {
  display: flex;
}

/* Glassmorphism content box */
.contentBox {
  background: rgba(255, 255, 255, 0.28);
  border-radius: 28px;
  padding: 28px 22px 30px;
  backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 18px 45px rgba(255, 105, 180, 0.35);
  width: min(480px, 96%);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

/* Small glowing highlight */
.contentBox::before {
  content: "";
  position: absolute;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(255,255,255,0.9), transparent 70%);
  top: -60px;
  right: -40px;
  opacity: 0.4;
  pointer-events: none;
}

h1, h2, h3 {
  margin: 0 0 10px;
}

.subtitle {
  font-size: 14px;
  margin-bottom: 8px;
  opacity: 0.85;
}

.smallNote {
  font-size: 13px;
  margin-bottom: 14px;
  opacity: 0.8;
}

button {
  font-family: inherit;
}

/* Buttons */
.primaryBtn {
  padding: 12px 28px;
  border: none;
  border-radius: 999px;
  font-size: 15px;
  background: linear-gradient(135deg, #ff5c8d, #ff8bb3);
  color: white;
  margin-top: 18px;
  cursor: pointer;
  letter-spacing: 0.03em;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(255, 92, 141, 0.4);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.primaryBtn::after {
  content: "";
  position: absolute;
  left: -40%;
  top: 0;
  width: 40%;
  height: 100%;
  background: linear-gradient(120deg, rgba(255,255,255,0.5), transparent);
  transform: skewX(-25deg);
  transition: transform 0.45s ease;
}

.primaryBtn:hover {
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 16px 30px rgba(255, 92, 141, 0.5);
}

.primaryBtn:hover::after {
  transform: translateX(220%) skewX(-25deg);
}

.ghostBtn {
  padding: 12px 24px;
  border-radius: 999px;
  border: 1.5px solid rgba(255, 92, 141, 0.7);
  background: rgba(255,255,255,0.15);
  color: #ff5c8d;
  margin-top: 18px;
  cursor: pointer;
  font-size: 15px;
  transition: background 0.2s ease, transform 0.18s ease;
}

.ghostBtn:hover {
  background: rgba(255, 255, 255, 0.35);
  transform: translateY(-1px);
}

.btnGroup {
  margin-top: 18px;
}

.btnGroup button {
  margin: 8px;
}

/* Cards */
.cardsContainer {
  display: flex;
  overflow-x: auto;
  gap: 14px;
  padding: 12px 0;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.cardsContainer::-webkit-scrollbar {
  display: none;
}

.card {
  min-width: 82%;
  background: rgba(255, 255, 255, 0.75);
  border-radius: 20px;
  padding: 18px 16px 20px;
  box-shadow: 0 10px 25px rgba(255, 105, 180, 0.3);
  scroll-snap-align: start;
  font-size: 15px;
  text-align: left;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "♥";
  position: absolute;
  font-size: 70px;
  color: rgba(255, 92, 141, 0.12);
  right: -5px;
  bottom: -25px;
}

/* Big heart screen */
.bigHeartWrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 18px 0 10px;
}

.bigHeartGlow {
  position: absolute;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 92, 141, 0.5), transparent 65%);
  animation: glowPulse 2.4s ease-in-out infinite;
}

.bigHeart {
  font-size: 80px;
  cursor: pointer;
  position: relative;
  z-index: 1;
  animation: pulse 1.6s infinite;
  filter: drop-shadow(0 10px 18px rgba(255, 92, 141, 0.6));
}

.tapText {
  font-size: 14px;
  margin-top: 6px;
  opacity: 0.85;
}

.scrollHint {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  opacity: 0.7;
  animation: floatUpDown 1.6s ease-in-out infinite;
}

/* Celebrate */
.confetti {
  height: 6px;
  background: repeating-linear-gradient(
    45deg,
    #fff0f4,
    #fff0f4 10px,
    #ff80ab 10px,
    #ff80ab 20px,
    #ffd1e8 20px,
    #ffd1e8 30px
  );
  animation: confettiFall 1.2s ease-in-out infinite;
  border-radius: 999px;
  margin-bottom: 18px;
}

.celebrateTitle {
  font-size: 28px;
  margin-bottom: 6px;
}

.celebrateText {
  margin-top: 0;
}

.loveLine {
  font-size: 18px;
  margin-top: 14px;
  color: #ff4d7a;
  animation: heartPop 1.5s ease-in-out infinite;
}

.finalHearts {
  margin-top: 18px;
  display: flex;
  justify-content: center;
  gap: 10px;
  font-size: 24px;
  animation: floatUpDown 2s ease-in-out infinite;
}

.footerNote {
  font-size: 12px;
  margin-top: 18px;
  opacity: 0.75;
}

/* Typewriter intro */
.typewriter {
  overflow: hidden;
  white-space: nowrap;
  border-right: 3px solid rgba(255, 92, 141, 0.7);
  width: 0;
  animation: typing 2.6s steps(22, end) forwards, blink 0.75s step-end infinite;
}

/* Animations */
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

@keyframes glowPulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.15); opacity: 1; }
}

@keyframes heartPop {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

@keyframes confettiFall {
  0% { transform: translateY(-6px); }
  100% { transform: translateY(6px); }
}

@keyframes floatUpDown {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, -5px); }
}

.fadeUp {
  animation: fadeUp 0.7s ease-out;
}

.slideIn {
  animation: slideIn 0.6s ease-out;
}

@keyframes fadeUp {
  0% { opacity: 0; transform: translateY(12px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  0% { opacity: 0; transform: translateY(16px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes typing {
  from { width: 0; }
  to { width: 260px; }
}

@keyframes blink {
  from, to { border-color: transparent; }
  50% { border-color: rgba(255, 92, 141, 0.8); }
}

/* Responsive tweaks */
@media (min-width: 768px) {
  .contentBox {
    padding: 32px 32px 36px;
  }
  .card {
    min-width: 60%;
  }
}