/* ===== Chocolate Day — Cute & Interactive ===== */
:root {
  --choco-dark: #2c1810;
  --choco-mid: #5d3a1a;
  --choco-warm: #8b5a2b;
  --choco-light: #c4956a;
  --cream: #fef5e7;
  --cream-warm: #fdebd0;
  --gold: #d4a84b;
  --gold-light: #f0d78c;
  --pink: #e8a0a0;
  --pink-soft: #f5d0d0;
  --shadow: rgba(45, 24, 16, 0.25);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Nunito', sans-serif;
  --font-hand: 'Caveat', cursive;
  --touch-target: 44px;
  --safe-top: env(safe-area-inset-top, 0);
  --safe-bottom: env(safe-area-inset-bottom, 0);
  --safe-left: env(safe-area-inset-left, 0);
  --safe-right: env(safe-area-inset-right, 0);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: linear-gradient(165deg, var(--cream) 0%, var(--cream-warm) 40%, #fce4c4 100%);
  color: var(--choco-dark);
  min-height: 100vh;
  overflow-x: hidden;
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
  padding-bottom: var(--safe-bottom);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* ----- Chocolate rain / floating bits ----- */
.chocolate-rain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

/* ----- Header ----- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(254, 245, 231, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--choco-light);
  box-shadow: 0 4px 20px var(--shadow);
  padding-top: var(--safe-top);
}

.nav {
  max-width: 900px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--choco-mid);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-toggle {
  min-width: var(--touch-target);
  min-height: var(--touch-target);
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: var(--cream-warm);
  font-size: 1.25rem;
  cursor: pointer;
  transition: transform 0.3s, background 0.3s;
  box-shadow: 0 2px 8px var(--shadow);
  touch-action: manipulation;
}

.theme-toggle:hover {
  transform: scale(1.1) rotate(15deg);
  background: var(--choco-light);
}

body.dark .theme-toggle {
  background: var(--choco-mid);
}

.nav-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--choco-mid);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--choco-mid);
  text-decoration: none;
  font-weight: 700;
  padding: 0.6rem 0.9rem;
  min-height: var(--touch-target);
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  transition: color 0.2s, background 0.2s, transform 0.2s;
  touch-action: manipulation;
}

.nav-links a:hover {
  color: var(--choco-dark);
  background: var(--pink-soft);
  transform: scale(1.05);
}

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 1.5rem;
  z-index: 1;
}

.hero-content {
  max-width: 600px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.title-line {
  display: block;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards;
}

.title-line:nth-child(1) { animation-delay: 0.1s; }
.title-line:nth-child(2) { animation-delay: 0.35s; }
.title-line:nth-child(3) { animation-delay: 0.6s; }

.chocolate-text {
  font-family: var(--font-hand);
  font-weight: 700;
  font-size: 1.15em;
  color: var(--choco-mid);
  text-shadow: 2px 2px 0 var(--gold-light);
  letter-spacing: 0.02em;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--choco-warm);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.7s forwards;
}

.cta-btn {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 700;
  padding: 0.9rem 2rem;
  min-height: var(--touch-target);
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--choco-warm), var(--choco-mid));
  color: var(--cream);
  cursor: pointer;
  box-shadow: 0 6px 20px var(--shadow);
  transition: transform 0.25s, box-shadow 0.25s;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.9s forwards;
  touch-action: manipulation;
}

.cta-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 28px var(--shadow);
}

.cta-btn:active {
  transform: scale(0.98);
}

/* Floating chocolate pieces in hero */
.hero-chocolates {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.choco-piece {
  position: absolute;
  font-size: 2rem;
  pointer-events: auto;
  cursor: pointer;
  animation: float 4s ease-in-out infinite;
  filter: drop-shadow(0 4px 8px var(--shadow));
  transition: transform 0.3s;
}

.choco-piece:hover,
.choco-piece:focus,
.choco-piece.tapped {
  transform: scale(1.4) rotate(10deg);
}

.choco-piece:focus {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.choco-1 { left: 12%; top: 25%; animation-delay: 0s; }
.choco-2 { right: 15%; top: 30%; animation-delay: 0.5s; }
.choco-3 { left: 20%; bottom: 30%; animation-delay: 1s; }
.choco-4 { right: 18%; bottom: 25%; animation-delay: 1.5s; }
.choco-5 { left: 50%; top: 15%; animation-delay: 2s; transform: translateX(-50%); }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

.choco-5 { animation-name: floatCenter; }
@keyframes floatCenter {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-15px); }
}

/* Floating hearts */
.floating-hearts {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.floating-hearts span {
  position: absolute;
  font-size: 1.2rem;
  color: var(--pink);
  opacity: 0.4;
  animation: floatHeart 8s ease-in-out infinite;
}

.floating-hearts span:nth-child(1) { left: 10%; animation-delay: 0s; }
.floating-hearts span:nth-child(2) { left: 30%; animation-delay: 1.5s; }
.floating-hearts span:nth-child(3) { left: 50%; animation-delay: 3s; }
.floating-hearts span:nth-child(4) { left: 70%; animation-delay: 4.5s; }
.floating-hearts span:nth-child(5) { left: 90%; animation-delay: 6s; }

@keyframes floatHeart {
  0%, 100% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 0.4; }
  90% { opacity: 0.2; }
  100% { transform: translateY(-20px) rotate(360deg); opacity: 0; }
}

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

/* ----- Sections common ----- */
section {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

section.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

section.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.section-title {
  font-family: var(--font-hand);
  font-weight: 700;
  font-size: clamp(1.75rem, 4.5vw, 2.35rem);
  color: var(--choco-mid);
  text-align: center;
  margin-bottom: 2.5rem;
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
}

.section-title::after {
  content: '';
  display: block;
  width: 60%;
  height: 3px;
  margin: 0.25rem auto 0;
  background: linear-gradient(90deg, transparent, var(--choco-light), transparent);
  border-radius: 2px;
}

/* ----- Chocolate letter (scroll to unwrap) ----- */
.letter-section {
  min-height: 220vh;
  max-width: none;
  padding: 0;
  margin: 0;
  position: relative;
}

.letter-hint {
  text-align: center;
  padding: 2rem 1rem 0;
  font-weight: 700;
  color: var(--choco-warm);
  font-size: 1rem;
}

.letter-tap-unwrap {
  display: none;
  margin: 0.5rem auto 0;
  padding: 0.65rem 1.25rem;
  min-height: var(--touch-target);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  color: var(--choco-mid);
  background: var(--cream-warm);
  border: 2px solid var(--choco-light);
  border-radius: 999px;
  cursor: pointer;
  touch-action: manipulation;
  transition: transform 0.2s, background 0.2s, border-color 0.2s;
  box-shadow: 0 4px 12px var(--shadow);
}

.letter-tap-unwrap:hover,
.letter-tap-unwrap:active {
  background: var(--choco-light);
  border-color: var(--choco-warm);
  transform: scale(1.02);
}

.letter-tap-unwrap:active {
  transform: scale(0.98);
}

.letter-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  perspective: 1400px;
}

.chocolate-letter-box {
  --unwrap: 0;
  width: min(320px, 88vw);
  height: min(420px, 52vh);
  position: relative;
  transform-style: preserve-3d;
}

/* The actual chocolate bar (brown, segmented) */
.chocolate-bar-face {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  background: linear-gradient(160deg, #4a2c14 0%, #5d3a1a 25%, #6b4423 50%, #5d3a1a 75%, #3d2510 100%);
  box-shadow: inset 0 2px 0 rgba(255,255,255,0.08), inset 0 -2px 0 rgba(0,0,0,0.2), 0 8px 24px rgba(0,0,0,0.35);
  z-index: 0;
}

.chocolate-bar-face::before {
  content: '';
  position: absolute;
  inset: 14px;
  border-radius: 10px;
  background: linear-gradient(
      to right,
      transparent 0,
      transparent calc(50% - 1px),
      rgba(0,0,0,0.2) 50%,
      transparent calc(50% + 1px),
      transparent 100%
    ),
    linear-gradient(
      to bottom,
      transparent 0,
      transparent calc(33.33% - 1px),
      rgba(0,0,0,0.15) 33.33%,
      transparent calc(33.33% + 1px),
      transparent 66.66%),
    linear-gradient(
      to bottom,
      transparent 66.66%,
      transparent calc(66.66% - 1px),
      rgba(0,0,0,0.15) 66.66%,
      transparent calc(66.66% + 1px),
      transparent 100%
    );
  pointer-events: none;
}

.letter-paper {
  position: absolute;
  inset: 16px;
  background: linear-gradient(180deg, #fffef9 0%, var(--cream-warm) 100%);
  border-radius: 14px 12px 16px 13px;
  padding: 1.5rem;
  box-shadow: inset 0 0 0 1px rgba(139, 90, 43, 0.25), 0 2px 12px var(--shadow);
  overflow: auto;
  z-index: 1;
  border: 1px solid var(--choco-light);
  transform: rotate(-0.4deg);
}

.letter-greeting {
  font-family: var(--font-hand);
  font-weight: 600;
  font-size: 1.5rem;
  color: var(--choco-mid);
  margin-bottom: 0.75rem;
}

.letter-body {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--choco-dark);
  margin-bottom: 1rem;
}

.letter-sign {
  font-family: var(--font-hand);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--choco-warm);
}

.letter-name {
  display: block;
  margin-top: 0.25rem;
  font-weight: 700;
  color: var(--choco-mid);
}

/* Foil wrapper that peels open from the top */
.wrapper-peel {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  transform-origin: center 100%;
  transform-style: preserve-3d;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  z-index: 3;
  pointer-events: none;
  /* Peel back: 0 = flat on bar, 1 = fully opened (folded backward) */
  -webkit-transform: rotateX(calc(var(--unwrap) * -165deg));
  transform: rotateX(calc(var(--unwrap) * -165deg));
  -webkit-transition: -webkit-transform 0.08s ease-out, transform 0.08s ease-out, opacity 0.08s ease-out;
  transition: transform 0.08s ease-out, opacity 0.08s ease-out;
  background: linear-gradient(
    180deg,
    #c9a227 0%,
    #b8860b 12%,
    #8b6914 25%,
    #a67c0c 40%,
    #daa520 55%,
    #8b6914 70%,
    #6b5344 88%,
    #5d4a0a 100%
  );
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.5),
    inset 0 -1px 0 rgba(0,0,0,0.2),
    inset 0 20px 40px -10px rgba(255,255,255,0.15),
    0 6px 20px rgba(0,0,0,0.25);
  border: 1px solid rgba(0,0,0,0.2);
}

.wrapper-peel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 12px;
  background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, transparent 100%);
  border-radius: 16px 16px 0 0;
  pointer-events: none;
}

.wrapper-label {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 1px 2px rgba(0,0,0,0.5), 0 0 20px rgba(0,0,0,0.2);
  white-space: nowrap;
}

body.dark .chocolate-bar-face {
  background: linear-gradient(160deg, #2c1810 0%, #3d2510 30%, #4a2c14 60%, #3d2510 100%);
}

body.dark .letter-paper {
  background: linear-gradient(180deg, #2c1810 0%, #3d2314 100%);
  border-color: var(--choco-warm);
}

body.dark .letter-greeting,
body.dark .letter-name {
  color: var(--gold-light);
}

body.dark .letter-body {
  color: #fdebd0;
}

body.dark .letter-sign {
  color: var(--choco-light);
}

/* ----- Love card ----- */
.love-section {
  background: linear-gradient(180deg, transparent, rgba(232, 160, 160, 0.15), transparent);
  border-radius: 2rem;
}

.love-card-wrapper {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
}

.love-card {
  cursor: pointer;
  width: 280px;
  height: 180px;
  perspective: 1000px;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transform: rotate(0.8deg);
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.love-card.flipped .card-inner {
  transform: rotateY(180deg);
}

.card-front,
.card-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: 18px 14px 20px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 32px var(--shadow);
}

.card-front {
  background: linear-gradient(145deg, var(--choco-light), var(--choco-warm));
  border: 3px solid var(--choco-mid);
}

.card-ribbon {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 30px;
  background: var(--pink);
  border-radius: 0 0 8px 8px;
  box-shadow: 0 2px 8px var(--shadow);
}

.card-front .card-emoji {
  font-size: 3.5rem;
  margin-bottom: 0.5rem;
}

.card-front p {
  font-weight: 700;
  color: var(--cream);
  text-shadow: 0 1px 2px var(--choco-dark);
}

.card-back {
  background: linear-gradient(145deg, var(--cream-warm), var(--cream));
  border: 3px solid var(--gold);
  transform: rotateY(180deg);
  padding: 1.5rem;
}

.card-message {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--choco-mid);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.card-from {
  font-size: 0.9rem;
  color: var(--choco-warm);
  font-style: italic;
}

.custom-message {
  text-align: center;
  max-width: 400px;
  margin: 0 auto;
}

.custom-message label {
  display: block;
  font-weight: 700;
  color: var(--choco-mid);
  margin-bottom: 0.5rem;
}

.custom-message textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--choco-light);
  border-radius: 12px;
  font-family: var(--font-body);
  font-size: 16px;
  resize: vertical;
  margin-bottom: 0.75rem;
  background: var(--cream);
  min-height: 80px;
}

.custom-message textarea:focus {
  outline: none;
  border-color: var(--choco-warm);
  box-shadow: 0 0 0 3px rgba(139, 90, 43, 0.2);
}

.small-btn {
  font-family: var(--font-body);
  font-weight: 700;
  padding: 0.6rem 1.35rem;
  min-height: var(--touch-target);
  border: none;
  border-radius: 999px;
  background: var(--choco-light);
  color: var(--choco-dark);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  touch-action: manipulation;
}

.small-btn:hover {
  background: var(--choco-warm);
  color: var(--cream);
  transform: scale(1.05);
}

/* ----- Facts ----- */
.facts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.fact-card {
  background: linear-gradient(145deg, #fff, var(--cream-warm));
  border: 2px solid var(--choco-light);
  border-radius: 22px 18px 20px 24px;
  padding: 1.75rem;
  text-align: center;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
}

.fact-card:nth-child(1) { transform: rotate(-0.6deg); }
.fact-card:nth-child(2) { transform: rotate(0.5deg); }
.fact-card:nth-child(3) { transform: rotate(-0.3deg); }
.fact-card:nth-child(1):hover,
.fact-card:nth-child(1):focus,
.fact-card:nth-child(1).tapped { transform: translateY(-6px) rotate(-0.6deg); }
.fact-card:nth-child(2):hover,
.fact-card:nth-child(2):focus,
.fact-card:nth-child(2).tapped { transform: translateY(-6px) rotate(0.5deg); }
.fact-card:nth-child(3):hover,
.fact-card:nth-child(3):focus,
.fact-card:nth-child(3).tapped { transform: translateY(-6px) rotate(-0.3deg); }

.fact-card:hover,
.fact-card:focus,
.fact-card.tapped {
  box-shadow: 0 12px 28px var(--shadow);
  border-color: var(--gold);
  outline: none;
}

.fact-card:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.fact-emoji {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.75rem;
}

.fact-card h3 {
  font-family: var(--font-display);
  color: var(--choco-mid);
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.fact-card p {
  font-size: 0.95rem;
  color: var(--choco-warm);
  line-height: 1.5;
}

/* ----- Gallery ----- */
.gallery-section {
  overflow: visible;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: 400px;
  margin: 0 auto 1rem;
  padding-bottom: 2rem;
  overflow: visible;
}

.gallery-item {
  aspect-ratio: 1;
  min-height: 80px;
  background: linear-gradient(145deg, var(--cream-warm), #fff);
  border: 3px solid var(--choco-light);
  border-radius: 22px 18px 20px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  cursor: pointer;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s, z-index 0s;
  position: relative;
  z-index: 1;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.gallery-item:hover,
.gallery-item:focus,
.gallery-item.tapped {
  transform: scale(1.08) rotate(-3deg);
  border-color: var(--gold);
  box-shadow: 0 10px 24px var(--shadow);
  z-index: 20;
}

.gallery-item:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* Mood label: keep as backup; tooltip shows on hover for always-on-top */
.gallery-item::after {
  content: attr(data-mood);
  position: absolute;
  bottom: -1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--choco-mid);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
  z-index: 21;
}

.gallery-item:hover::after {
  opacity: 1;
}

.gallery-hint {
  text-align: center;
  font-size: 0.9rem;
  color: var(--choco-warm);
}

/* ----- Quote section ----- */
.quote-section {
  background: linear-gradient(180deg, transparent, rgba(212, 168, 75, 0.12), transparent);
  border-radius: 2rem;
}

.quote-box {
  text-align: center;
  max-width: 500px;
  margin: 0 auto;
  padding: 1.5rem;
  background: linear-gradient(145deg, #fff, var(--cream-warm));
  border: 2px solid var(--choco-light);
  border-radius: 24px 18px 22px 20px;
  box-shadow: 0 8px 24px var(--shadow);
  transform: rotate(0.4deg);
}

.quote-text {
  font-family: var(--font-hand);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--choco-mid);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.quote-btn {
  margin-top: 0.5rem;
}

.hero-quote {
  font-size: 0.95rem;
  color: var(--choco-warm);
  font-style: italic;
  margin-bottom: 1.25rem;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.8s forwards;
}

/* ----- Dark mode ----- */
body.dark {
  background: linear-gradient(165deg, #1a1210 0%, #2c1810 50%, #1f1512 100%);
  color: #fdebd0;
}

body.dark .header {
  background: rgba(44, 24, 16, 0.95);
  border-bottom-color: var(--choco-warm);
}

body.dark .logo,
body.dark .nav-links a {
  color: #fdebd0;
}

body.dark .nav-links a:hover {
  background: rgba(139, 90, 43, 0.5);
  color: #fff;
}

body.dark .hero-subtitle,
body.dark .footer,
body.dark .footer-date,
body.dark .gallery-hint {
  color: var(--choco-light);
}

body.dark .footer-handmade {
  color: var(--gold-light);
}

body.dark .section-title {
  color: var(--gold-light);
}

body.dark .chocolate-text {
  color: var(--gold-light);
  text-shadow: 2px 2px 0 var(--choco-mid);
}

body.dark .fact-card,
body.dark .quote-box {
  background: linear-gradient(145deg, #2c1810, #3d2314);
  border-color: var(--choco-warm);
  color: #fdebd0;
}

body.dark .fact-card h3,
body.dark .quote-text {
  color: var(--gold-light);
}

body.dark .fact-card p {
  color: var(--choco-light);
}

body.dark .gallery-item {
  background: linear-gradient(145deg, #2c1810, #3d2314);
  border-color: var(--choco-warm);
}

body.dark .gallery-item::after {
  color: var(--gold-light);
}

body.dark .custom-message textarea {
  background: #1a1210;
  border-color: var(--choco-warm);
  color: #fdebd0;
}

body.dark .card-back {
  background: linear-gradient(145deg, #2c1810, #3d2314);
  border-color: var(--gold);
}

body.dark .card-message,
body.dark .card-from {
  color: #fdebd0;
}

/* ----- Footer ----- */
.footer {
  text-align: center;
  padding: 2rem 1.5rem;
  color: var(--choco-warm);
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.footer-handmade {
  font-family: var(--font-hand);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--choco-mid);
}

.footer-date {
  margin-top: 0.35rem;
  font-size: 0.95rem;
  opacity: 0.9;
}

/* ----- Tooltip ----- */
.tooltip {
  position: fixed;
  padding: 0.5rem 1rem;
  background: var(--choco-dark);
  color: var(--cream);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 12px;
  pointer-events: none;
  z-index: 1000;
  opacity: 0;
  transform: translate(-50%, -100%) scale(0.9);
  transition: opacity 0.2s, transform 0.2s;
  white-space: nowrap;
}

.tooltip.visible {
  opacity: 1;
  transform: translate(-50%, -100%) scale(1);
}

/* ----- Responsive ----- */
@media (max-width: 600px) {
  section {
    padding: 2.5rem 1.25rem;
    padding-left: max(1.25rem, var(--safe-left));
    padding-right: max(1.25rem, var(--safe-right));
  }

  .section-title {
    font-size: clamp(1.6rem, 7vw, 2rem);
    padding: 0 0.5rem;
  }

  .nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: var(--touch-target);
    min-height: var(--touch-target);
  }

  .nav-links {
    position: fixed;
    top: calc(56px + var(--safe-top));
    left: 0;
    right: 0;
    background: rgba(254, 245, 231, 0.98);
    flex-direction: column;
    padding: 1rem;
    padding-bottom: calc(1rem + var(--safe-bottom));
    gap: 0.25rem;
    border-bottom: 2px solid var(--choco-light);
    transform: translateY(-120%);
    transition: transform 0.3s ease-out;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .hero {
    min-height: 80vh;
    padding: 2rem 1rem;
  }

  .hero-title {
    font-size: clamp(1.85rem, 8vw, 2.5rem);
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .choco-piece {
    font-size: 1.75rem;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .choco-1 { left: 5%; }
  .choco-2 { right: 5%; }
  .choco-4 { right: 8%; }

  .letter-section {
    min-height: 160vh;
  }

  .letter-tap-unwrap {
    display: block;
  }

  .letter-hint {
    padding: 1.5rem 1rem 0;
    font-size: 0.95rem;
  }

  .letter-sticky {
    -webkit-perspective: 1400px;
    perspective: 1400px;
  }

  .chocolate-letter-box {
    width: min(320px, 92vw);
    height: min(400px, 58vh);
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
  }

  /* Mobile: 2D fallback so unwrap always shows (3D rotateX often broken on mobile) */
  .wrapper-peel {
    -webkit-transform: translateY(calc(var(--unwrap) * -100%));
    transform: translateY(calc(var(--unwrap) * -100%));
    opacity: calc(1 - var(--unwrap) * 0.98);
    -webkit-transition: -webkit-transform 0.5s ease-out, transform 0.5s ease-out, opacity 0.45s ease-out;
    transition: transform 0.5s ease-out, opacity 0.45s ease-out;
  }

  .letter-paper {
    inset: 12px;
    padding: 1.25rem;
  }

  .letter-body {
    font-size: 0.9rem;
  }

  .love-card {
    width: min(280px, 88vw);
    height: 180px;
    transform: rotate(0.4deg);
  }

  .letter-paper {
    transform: rotate(-0.2deg);
  }

  .quote-box {
    transform: rotate(0.2deg);
  }

  .fact-card:nth-child(1),
  .fact-card:nth-child(2),
  .fact-card:nth-child(3) {
    transform: rotate(0deg);
  }
  .fact-card:nth-child(1):hover,
  .fact-card:nth-child(1):focus,
  .fact-card:nth-child(1).tapped,
  .fact-card:nth-child(2):hover,
  .fact-card:nth-child(2):focus,
  .fact-card:nth-child(2).tapped,
  .fact-card:nth-child(3):hover,
  .fact-card:nth-child(3):focus,
  .fact-card:nth-child(3).tapped {
    transform: translateY(-6px);
  }

  .facts-grid {
    gap: 1rem;
  }

  .fact-card {
    min-height: 140px;
    padding: 1.5rem;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    padding-bottom: 2.5rem;
  }

  .gallery-item {
    font-size: 2.5rem;
  }

  .gallery-item::after {
    font-size: 0.8rem;
  }

  .quote-box {
    padding: 1.25rem;
  }

  .quote-text {
    font-size: 1rem;
  }

  .footer {
    padding: 1.5rem 1.25rem;
    padding-bottom: calc(1.5rem + var(--safe-bottom));
  }

  .footer-handmade {
    font-size: 1.35rem;
  }

  .cta-btn,
  .small-btn,
  .letter-tap-unwrap {
    min-height: 48px;
    padding: 0.75rem 1.5rem;
  }
}

@media (hover: none) and (pointer: coarse) {
  .letter-section {
    min-height: 120vh;
  }

  .letter-hint {
    font-size: 0.9rem;
  }

  /* Touch devices: 2D unwrap (slide up + fade) so it works everywhere */
  .wrapper-peel {
    -webkit-transform: translateY(calc(var(--unwrap) * -100%));
    transform: translateY(calc(var(--unwrap) * -100%));
    opacity: calc(1 - var(--unwrap) * 0.98);
    -webkit-transition: -webkit-transform 0.5s ease-out, transform 0.5s ease-out, opacity 0.45s ease-out;
    transition: transform 0.5s ease-out, opacity 0.45s ease-out;
  }
}