/* Valentine's Day — For Carmen */
:root {
  --blush: #f8e1e7;
  --rose: #e8a0b5;
  --coral: #f28482;
  --deep-rose: #c97b84;
  --cream: #fef6f8;
  --text: #5c3d45;
  --shadow: rgba(201, 123, 132, 0.25);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Quicksand', sans-serif;
  background: linear-gradient(160deg, var(--blush) 0%, var(--cream) 40%, #fff5f7 100%);
  min-height: 100vh;
  color: var(--text);
  overflow-x: hidden;
}

/* Floating hearts background */
.hearts-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.hearts-bg::before,
.hearts-bg::after {
  content: '♥';
  position: absolute;
  font-size: 1.5rem;
  opacity: 0.15;
  color: var(--coral);
  animation: float 8s ease-in-out infinite;
}

.hearts-bg::before {
  top: 10%;
  left: 15%;
  animation-delay: 0s;
}

.hearts-bg::after {
  top: 60%;
  right: 20%;
  animation-delay: -4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(10deg); }
}

.container {
  position: relative;
  z-index: 1;
  max-width: 520px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

/* Hero */
.hero {
  text-align: center;
  margin-bottom: 2.5rem;
}

.title {
  font-family: 'Dancing Script', cursive;
  font-size: clamp(2.2rem, 6vw, 3.2rem);
  font-weight: 700;
  color: var(--deep-rose);
  animation: fadeInDown 0.8s ease-out;
}

.subtitle {
  font-family: 'Dancing Script', cursive;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 600;
  color: var(--coral);
  margin-top: 0.25rem;
  animation: fadeInDown 0.8s ease-out 0.2s both;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Card section */
.card-section {
  margin-bottom: 2rem;
}

.hint {
  text-align: center;
  font-size: 0.9rem;
  color: var(--deep-rose);
  margin-bottom: 1rem;
  opacity: 0.9;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.9; }
  50% { opacity: 0.6; }
}

.card-wrapper {
  perspective: 1200px;
  cursor: pointer;
}

.card {
  position: relative;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  min-height: 220px;
  transform-style: preserve-3d;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.card.opened {
  transform: rotateY(180deg);
}

.card-front,
.card-back {
  position: absolute;
  width: 100%;
  min-height: 220px;
  backface-visibility: hidden;
  border-radius: 16px;
  box-shadow: 0 12px 40px var(--shadow);
}

.card-front {
  background: linear-gradient(145deg, #fff 0%, var(--cream) 100%);
  border: 2px solid var(--rose);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.card-back {
  background: linear-gradient(145deg, var(--cream) 0%, #fff 100%);
  border: 2px solid var(--rose);
  transform: rotateY(180deg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

/* Envelope */
.envelope {
  position: relative;
  width: 180px;
  height: 120px;
}

.envelope-flap {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  border-left: 90px solid transparent;
  border-right: 90px solid transparent;
  border-top: 40px solid var(--rose);
  filter: brightness(1.1);
  transition: transform 0.5s ease;
  transform-origin: top center;
  z-index: 1;
}

.card.opened .envelope-flap {
  transform: rotateX(-180deg);
}

.envelope-body {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 180px;
  height: 120px;
  background: linear-gradient(180deg, var(--coral) 0%, var(--deep-rose) 100%);
  border-radius: 0 0 8px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  box-shadow: 0 4px 12px var(--shadow);
}

.envelope-body .heart-icon {
  font-size: 2rem;
}

.envelope-body p {
  font-family: 'Dancing Script', cursive;
  font-size: 1.25rem;
  font-weight: 600;
  color: white;
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* Message inside card */
.card-message {
  text-align: center;
}

.card-message h2 {
  font-family: 'Dancing Script', cursive;
  font-size: 1.6rem;
  color: var(--deep-rose);
  margin-bottom: 0.75rem;
}

.card-message p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.card-message .sign-off {
  font-family: 'Dancing Script', cursive;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--coral);
  margin-top: 0.75rem;
}

/* Click hearts */
.hearts-play {
  text-align: center;
  min-height: 80px;
}

.play-hint {
  font-size: 0.85rem;
  color: var(--deep-rose);
  opacity: 0.8;
  margin-bottom: 0.5rem;
}

/* Ask buttons */
.ask-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.btn {
  font-family: 'Quicksand', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

.btn-yes {
  background: linear-gradient(145deg, var(--coral), var(--deep-rose));
  color: white;
  box-shadow: 0 4px 16px var(--shadow);
}

.btn-yes:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px var(--shadow);
}

.btn-no {
  background: var(--cream);
  color: var(--deep-rose);
  border: 2px solid var(--rose);
  transition: left 0.25s ease-out, top 0.25s ease-out, transform 0.2s ease;
}

.btn-no:hover {
  transform: scale(1.03);
}

.yes-response {
  text-align: center;
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: linear-gradient(145deg, rgba(255,255,255,0.8), var(--blush));
  border-radius: 16px;
  border: 2px solid var(--rose);
}

.hidden {
  display: none !important;
}

.yes-response.hidden {
  display: none !important;
}

.yes-message {
  font-family: 'Dancing Script', cursive;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--deep-rose);
  margin: 0;
}

.heart-trail {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

/* Footer */
.footer {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(232, 160, 181, 0.4);
}

.footer p {
  font-family: 'Dancing Script', cursive;
  font-size: 1.2rem;
  color: var(--deep-rose);
}

.footer .back-link {
  font-family: 'Quicksand', sans-serif;
  font-size: 0.9rem;
  color: var(--deep-rose);
  text-decoration: none;
  margin-top: 0.5rem;
  display: inline-block;
}

.footer .back-link:hover {
  text-decoration: underline;
  color: var(--coral);
}

/* Click heart burst */
.heart-burst {
  position: fixed;
  pointer-events: none;
  z-index: 10;
  font-size: 1.5rem;
  animation: heartBurst 1.2s ease-out forwards;
}

@keyframes heartBurst {
  0% {
    opacity: 1;
    transform: scale(0.5) translate(0, 0);
  }
  50% {
    opacity: 1;
    transform: scale(1.2) translate(var(--dx), var(--dy));
  }
  100% {
    opacity: 0;
    transform: scale(1.5) translate(calc(var(--dx) * 1.5), calc(var(--dy) * 1.5));
  }
}