/* ============================================================
   7 Days of Love for Cutuu - Styles
   ============================================================ */

/* ---------- CSS Variables / Palette ---------- */
:root {
  --pink-light: #FFE4E6;
  --pink: #FFC1CC;
  --pink-dark: #FF8FAB;
  --rose: #FF6B8A;
  --lavender: #E8D5F5;
  --lavender-dark: #C9A7EB;
  --cream: #FFF8F0;
  --rose-gold: #B76E79;
  --white: #FFFFFF;
  --text: #5C4054;
  --text-light: #8B6F7F;
  --shadow: rgba(183, 110, 121, 0.15);
  --shadow-strong: rgba(183, 110, 121, 0.3);
  --font-display: 'Dancing Script', cursive;
  --font-hand: 'Caveat', cursive;
  --font-body: 'Quicksand', sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  background: linear-gradient(135deg, var(--pink-light) 0%, var(--lavender) 50%, var(--cream) 100%);
  background-size: 400% 400%;
  animation: gradientShift 12s ease infinite;
}

@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ---------- Screen Management ---------- */
.screen {
  display: none;
  min-height: 100vh;
  width: 100%;
  position: relative;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  padding: 2rem 1rem;
}

.screen.active {
  display: flex;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 100;
  background: rgba(255, 228, 230, 0.97);
  overflow-y: auto;
}

/* ---------- Floating Hearts Background ---------- */
#floating-hearts {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.floating-heart {
  position: absolute;
  color: var(--pink);
  opacity: 0.3;
  animation: floatUp linear infinite;
  pointer-events: none;
  user-select: none;
}

@keyframes floatUp {
  0% {
    transform: translateY(100vh) rotate(0deg) scale(1);
    opacity: 0;
  }
  10% {
    opacity: 0.3;
  }
  90% {
    opacity: 0.3;
  }
  100% {
    transform: translateY(-10vh) rotate(360deg) scale(0.5);
    opacity: 0;
  }
}

/* ---------- Landing Screen ---------- */
.landing-content {
  text-align: center;
  z-index: 1;
}

.landing-subtitle {
  font-family: var(--font-hand);
  font-size: 1.4rem;
  color: var(--text-light);
  margin-bottom: 0.25rem;
  opacity: 0;
}

.landing-name {
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--rose);
  text-shadow: 2px 2px 8px var(--shadow);
  margin-bottom: 0.5rem;
  opacity: 0;
}

.landing-tagline {
  font-family: var(--font-hand);
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 2.5rem;
  opacity: 0;
}

/* ---------- Envelope ---------- */
.envelope-wrapper {
  display: inline-block;
  cursor: pointer;
  opacity: 0;
  filter: drop-shadow(0 8px 24px var(--shadow-strong));
  transition: transform 0.3s ease;
}

.envelope-wrapper:hover {
  transform: scale(1.05);
}

.envelope {
  width: 200px;
  height: 140px;
  position: relative;
}

.envelope-body {
  width: 100%;
  height: 100%;
  background: var(--cream);
  border: 3px solid var(--pink);
  border-radius: 4px 4px 12px 12px;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2;
}

.envelope-heart {
  font-size: 2.5rem;
  color: var(--rose);
  animation: heartPulse 1.2s ease-in-out infinite;
}

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

.envelope-flap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 70px;
  background: linear-gradient(135deg, var(--pink-light), var(--pink));
  clip-path: polygon(0 0, 50% 100%, 100% 0);
  z-index: 3;
  transform-origin: top center;
  transition: transform 0.6s ease;
  border-top: 3px solid var(--pink);
}

.envelope.opened .envelope-flap {
  transform: rotateX(180deg);
  z-index: 1;
}

/* ---------- Letter Screen ---------- */
.letter-paper {
  background: var(--cream);
  max-width: 520px;
  width: 90%;
  padding: 2.5rem 2rem;
  border-radius: 8px;
  box-shadow: 0 8px 40px var(--shadow-strong);
  border: 2px solid var(--pink);
  position: relative;
  z-index: 1;
  text-align: center;
}

.letter-paper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    repeating-linear-gradient(
      transparent,
      transparent 31px,
      var(--pink-light) 31px,
      var(--pink-light) 32px
    );
  border-radius: 8px;
  pointer-events: none;
  opacity: 0.5;
}

.letter-content {
  position: relative;
  z-index: 1;
}

.letter-greeting {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--rose);
  margin-bottom: 1.2rem;
  opacity: 0;
}

.letter-line {
  font-family: var(--font-hand);
  font-size: 1.3rem;
  color: var(--text);
  margin-bottom: 0.6rem;
  line-height: 1.5;
  opacity: 0;
}

.letter-closing {
  font-family: var(--font-hand);
  font-size: 1.3rem;
  color: var(--text-light);
  margin-top: 1.5rem;
  opacity: 0;
}

.letter-signature {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--rose);
  margin-top: 0.3rem;
  opacity: 0;
}

.btn-see-surprises {
  display: inline-block;
  margin-top: 2rem;
  padding: 0.85rem 2.2rem;
  background: linear-gradient(135deg, var(--rose), var(--pink-dark));
  color: var(--white);
  border: none;
  border-radius: 50px;
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 16px var(--shadow-strong);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  opacity: 0;
  position: relative;
  z-index: 1;
}

.btn-see-surprises:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--shadow-strong);
}

/* ---------- Calendar Screen ---------- */
.calendar-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--rose);
  text-align: center;
  margin-bottom: 0.2rem;
  z-index: 1;
}

.calendar-subtitle {
  font-family: var(--font-hand);
  font-size: 1.3rem;
  color: var(--text-light);
  text-align: center;
  margin-bottom: 2rem;
  z-index: 1;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  max-width: 500px;
  width: 90%;
  z-index: 1;
}

/* ---------- Card ---------- */
.card {
  background: var(--white);
  border: 2px solid var(--pink-light);
  border-radius: 16px;
  padding: 1.4rem 1rem;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 4px 16px var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, var(--pink-light) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 14px;
}

.card:hover::before {
  opacity: 1;
}

.card-inner {
  position: relative;
  z-index: 1;
}

.card-icon {
  font-size: 2.2rem;
  margin-bottom: 0.4rem;
}

.card-day-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--rose);
  margin-bottom: 0.15rem;
}

.card-date {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-light);
}

.card-lock-label {
  font-size: 1rem;
  margin-top: 0.5rem;
  display: none;
}

/* Card States */
.card.locked {
  opacity: 0.55;
  cursor: not-allowed;
  filter: grayscale(0.3);
}

.card.locked .card-lock-label {
  display: block;
}

.card.locked:hover {
  transform: none;
  box-shadow: 0 4px 16px var(--shadow);
}

.card.locked:active {
  animation: lockedShake 0.4s ease;
}

@keyframes lockedShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

.card.today {
  border-color: var(--rose);
  box-shadow: 0 0 0 3px rgba(255, 107, 138, 0.2), 0 4px 16px var(--shadow-strong);
  animation: todayGlow 2s ease-in-out infinite;
}

@keyframes todayGlow {
  0%, 100% { box-shadow: 0 0 0 3px rgba(255, 107, 138, 0.2), 0 4px 16px var(--shadow-strong); }
  50% { box-shadow: 0 0 0 6px rgba(255, 107, 138, 0.15), 0 6px 24px var(--shadow-strong); }
}

.card.today:hover,
.card.unlocked:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px var(--shadow-strong);
}

.card.unlocked {
  border-color: var(--pink);
}

.card.unlocked .card-lock-label {
  display: none;
}

.card.opened .card-lock-label {
  display: none;
}

.card.opened::after {
  content: '✓';
  position: absolute;
  top: 8px;
  right: 10px;
  font-size: 0.9rem;
  color: var(--rose);
}

/* Valentine's Day card special */
.card-valentine {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--pink-light), var(--lavender));
  border-color: var(--rose-gold);
}

.card-valentine .card-icon {
  font-size: 2.8rem;
}

.card-valentine .card-day-name {
  font-size: 1.4rem;
}

/* ---------- Card Reveal Overlay ---------- */
#card-reveal {
  display: none;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  padding: 2rem;
}

#card-reveal.active {
  display: flex;
}

.btn-close-reveal {
  position: fixed;
  top: 1rem;
  right: 1.2rem;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--rose);
  cursor: pointer;
  z-index: 110;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.2s ease;
}

.btn-close-reveal:hover {
  background: rgba(255, 107, 138, 0.1);
}

.reveal-container {
  text-align: center;
  max-width: 480px;
  width: 90%;
}

.reveal-theme-label {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--rose);
  margin-bottom: 0.5rem;
}

.reveal-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.reveal-reason {
  font-family: var(--font-hand);
  font-size: 1.5rem;
  color: var(--text);
  line-height: 1.6;
  padding: 1.5rem;
  background: var(--white);
  border-radius: 16px;
  box-shadow: 0 4px 20px var(--shadow);
  border: 2px solid var(--pink-light);
  margin-top: 1rem;
  opacity: 0;
}

/* Reveal animation containers per theme */
.reveal-rose-container { position: relative; min-height: 180px; }
.reveal-propose-container { position: relative; }
.reveal-chocolate-container { position: relative; }
.reveal-teddy-container { position: relative; }
.reveal-promise-container { position: relative; }
.reveal-hug-container { position: relative; }
.reveal-kiss-container { position: relative; overflow: hidden; }

/* Rose bloom */
.rose-svg {
  width: 120px;
  height: 120px;
  margin: 0 auto 1rem;
}

.rose-petal {
  fill: var(--rose);
  opacity: 0;
  transform-origin: center;
}

.rose-center {
  fill: var(--pink-dark);
}

.rose-stem {
  stroke: #6daa6d;
  stroke-width: 3;
  fill: none;
}

.rose-leaf {
  fill: #6daa6d;
  opacity: 0;
}

/* Propose Day typewriter */
.typewriter-text {
  font-family: var(--font-hand);
  font-size: 1.6rem;
  color: var(--rose);
  min-height: 3rem;
  padding: 1rem;
}

.typewriter-cursor {
  display: inline-block;
  width: 2px;
  height: 1.4em;
  background: var(--rose);
  animation: blink 0.8s infinite;
  vertical-align: text-bottom;
  margin-left: 2px;
}

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

/* Chocolate unwrap layers */
.choco-wrapper {
  width: 160px;
  height: 160px;
  margin: 0 auto 1rem;
  position: relative;
}

.choco-layer {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.choco-layer-1 { background: #8B6914; z-index: 4; }
.choco-layer-2 { background: #D4A54A; z-index: 3; }
.choco-layer-3 { background: #E8C97A; z-index: 2; }
.choco-layer-inner {
  background: linear-gradient(135deg, #6B3A2A, #8B4513);
  z-index: 1;
  color: var(--cream);
  font-size: 4rem;
}

/* Teddy */
.teddy-character {
  font-size: 5rem;
  display: inline-block;
}

.speech-bubble {
  background: var(--white);
  border: 2px solid var(--pink);
  border-radius: 20px;
  padding: 1rem 1.5rem;
  font-family: var(--font-hand);
  font-size: 1.3rem;
  color: var(--text);
  position: relative;
  margin-top: 1rem;
  box-shadow: 0 4px 12px var(--shadow);
  opacity: 0;
}

.speech-bubble::before {
  content: '';
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 10px solid var(--pink);
}

/* Promise pinky */
.pinky-hands {
  font-size: 4rem;
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: 1rem;
}

.pinky-left, .pinky-right {
  display: inline-block;
}

/* Hug hearts */
.hug-hearts {
  display: flex;
  justify-content: center;
  gap: 2rem;
  font-size: 4rem;
  margin-bottom: 1rem;
}

.hug-heart-left, .hug-heart-right {
  display: inline-block;
  color: var(--rose);
}

/* Kiss trail */
.kiss-heart {
  position: absolute;
  font-size: 2rem;
  color: var(--rose);
  pointer-events: none;
}

/* ---------- Finale Screen ---------- */
#finale {
  display: none;
  background: linear-gradient(135deg, var(--pink-light), var(--lavender), var(--cream));
  background-size: 600% 600%;
  animation: finaleGradient 8s ease infinite;
}

#finale.active {
  display: flex;
}

@keyframes finaleGradient {
  0%   { background-position: 0% 50%; }
  25%  { background-position: 50% 0%; }
  50%  { background-position: 100% 50%; }
  75%  { background-position: 50% 100%; }
  100% { background-position: 0% 50%; }
}

.finale-content {
  text-align: center;
  max-width: 560px;
  width: 90%;
  z-index: 1;
  padding: 2rem 0;
}

.finale-title {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--rose-gold);
  margin-bottom: 0.3rem;
  opacity: 0;
}

.finale-name {
  font-family: var(--font-display);
  font-size: 3.5rem;
  color: var(--rose);
  text-shadow: 2px 2px 8px var(--shadow);
  margin-bottom: 2rem;
  opacity: 0;
}

.finale-reasons {
  margin-bottom: 2rem;
}

.finale-reason-item {
  font-family: var(--font-hand);
  font-size: 1.2rem;
  color: var(--text);
  padding: 0.7rem 1rem;
  margin-bottom: 0.6rem;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 12px;
  border-left: 4px solid var(--rose);
  text-align: left;
  opacity: 0;
  transform: translateX(-20px);
}

.finale-message {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--rose);
  margin-bottom: 1.5rem;
  opacity: 0;
}

.finale-closing {
  font-family: var(--font-hand);
  font-size: 1.4rem;
  color: var(--text);
  margin-bottom: 2rem;
  opacity: 0;
}

.btn-close-finale {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: linear-gradient(135deg, var(--rose), var(--pink-dark));
  color: var(--white);
  border: none;
  border-radius: 50px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 16px var(--shadow-strong);
  transition: transform 0.2s ease;
  opacity: 0;
}

.btn-close-finale:hover {
  transform: translateY(-2px);
}

/* ---------- Responsive ---------- */
@media (min-width: 640px) {
  .landing-name {
    font-size: 5.5rem;
  }

  .landing-subtitle {
    font-size: 1.6rem;
  }

  .envelope {
    width: 260px;
    height: 180px;
  }

  .envelope-flap {
    height: 90px;
  }

  .envelope-heart {
    font-size: 3.5rem;
  }

  .calendar-grid {
    grid-template-columns: repeat(4, 1fr);
    max-width: 700px;
  }

  .card-valentine {
    grid-column: 2 / 4;
  }

  .calendar-title {
    font-size: 3rem;
  }

  .letter-paper {
    padding: 3rem 2.5rem;
  }

  .letter-greeting {
    font-size: 2.2rem;
  }

  .letter-line {
    font-size: 1.5rem;
  }

  .finale-name {
    font-size: 4.5rem;
  }
}

@media (max-width: 360px) {
  .landing-name {
    font-size: 3rem;
  }

  .card {
    padding: 1rem 0.6rem;
  }

  .card-icon {
    font-size: 1.8rem;
  }

  .card-day-name {
    font-size: 1rem;
  }

  .reveal-reason {
    font-size: 1.3rem;
  }
}