:root {
  --yellow: #f5c518;
  --yellow-deep: #e0a800;
  --brown: #4a3b1e;
  --cream: #fffaf0;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: 'Georgia', 'Times New Roman', serif;
  background: linear-gradient(180deg, #fff6dc 0%, #ffe9a8 100%);
  color: var(--brown);
  overflow-x: hidden;
}

#flowers {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
}

#app {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.screen {
  width: 100%;
  max-width: 560px;
  text-align: center;
  animation: fadeIn 0.6s ease;
}

.hidden {
  display: none !important;
}

h1 {
  font-size: clamp(2rem, 8vw, 3rem);
  margin: 0 0 4px;
  color: var(--yellow-deep);
  text-shadow: 1px 1px 0 rgba(0,0,0,0.05);
}

.subtitle {
  font-size: 1.1rem;
  margin: 0 0 32px;
  letter-spacing: 0.5px;
}

.btn {
  background: var(--yellow);
  color: var(--brown);
  border: none;
  padding: 14px 28px;
  font-size: 1.1rem;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(224, 168, 0, 0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  font-family: inherit;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(224, 168, 0, 0.5);
}

.btn:active {
  transform: translateY(0);
}

.btn.small {
  padding: 10px 20px;
  font-size: 0.95rem;
  margin-top: 20px;
}

.paper {
  background: var(--cream);
  border-radius: 12px;
  padding: 40px 32px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.15);
  position: relative;
}

.paper::before {
  content: "🌻";
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 2rem;
}

#letter-text {
  font-size: 1.15rem;
  line-height: 1.7;
  min-height: 4em;
  white-space: pre-wrap;
  text-align: left;
}

#signature {
  margin-top: 24px;
  text-align: right;
}

.signature-text {
  margin: 0;
  font-style: italic;
}

.signature-name {
  margin: 4px 0 0;
  font-size: 1.3rem;
  color: var(--yellow-deep);
  font-weight: bold;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 480px) {
  .paper {
    padding: 32px 20px;
  }
}