/* ============================================================
   🎂 BIRTHDAY WEBSITE — STYLE SYSTEM v2.0
   Design: Premium Glassmorphism + Sage Green + Warm Accents
   Fonts: Caveat (headings) + Plus Jakarta Sans (body)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@400;500;600;700&display=swap');

/* ── CSS Custom Properties ──────────────────────────────── */
:root {
  /* Colors — Richer palette */
  --color-primary:        #3B9B74;
  --color-primary-dark:   #2A7D5C;
  --color-primary-darker: #1A5F42;
  --color-primary-light:  #7BCCA8;
  --color-primary-pale:   #D6F0E3;
  --color-primary-ultra:  #EEFBF4;

  --color-accent:         #F472B6;
  --color-accent-light:   #FBCFE8;
  --color-accent-warm:    #FCD34D;
  --color-accent-lavender:#C4B5FD;
  --color-accent-peach:   #FDBA74;

  --color-background:     #F0F7F3;
  --color-surface:        rgba(255, 255, 255, 0.72);
  --color-surface-solid:  #FFFFFF;
  --color-foreground:     #14332A;
  --color-muted:          #5A8A72;
  --color-border:         rgba(59, 155, 116, 0.15);
  --color-border-strong:  rgba(59, 155, 116, 0.25);

  /* Typography */
  --font-heading:  'Caveat', cursive;
  --font-body:     'Plus Jakarta Sans', 'Quicksand', sans-serif;

  /* Spacing */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Border Radius */
  --radius-sm:    10px;
  --radius-md:    16px;
  --radius-lg:    24px;
  --radius-xl:    32px;
  --radius-full:  9999px;

  /* Shadows — Layered depth */
  --shadow-sm:  0 2px 8px rgba(20, 51, 42, 0.05);
  --shadow-md:  0 8px 24px rgba(20, 51, 42, 0.08), 0 2px 6px rgba(20, 51, 42, 0.04);
  --shadow-lg:  0 20px 48px rgba(20, 51, 42, 0.12), 0 4px 12px rgba(20, 51, 42, 0.06);
  --shadow-card: 0 4px 20px rgba(20, 51, 42, 0.06), 0 1px 4px rgba(20, 51, 42, 0.04);
  --shadow-card-hover: 0 12px 40px rgba(59, 155, 116, 0.15), 0 4px 12px rgba(20, 51, 42, 0.08);
  --shadow-glow: 0 0 20px rgba(59, 155, 116, 0.2), 0 0 60px rgba(59, 155, 116, 0.08);

  /* Transitions */
  --transition-fast:   150ms ease-out;
  --transition-base:   300ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow:   500ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-Index Scale */
  --z-base:    0;
  --z-raised:  10;
  --z-overlay: 100;
  --z-modal:   1000;
}

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

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

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-foreground);
  background-color: var(--color-background);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  outline: none;
}

button:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* ── Floating Particles (background) ────────────────────── */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: var(--z-base);
  opacity: 0.35;
}

/* ── Page Wrapper ────────────────────────────────────────── */
.page-wrapper {
  position: relative;
  z-index: 1;
}

/* ── HERO SECTION ────────────────────────────────────────── */
.hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #E8F5EE 0%, #F0FAF5 25%, #FFF9F0 50%, #F5F0FF 75%, #E8F5EE 100%);
  background-size: 300% 300%;
  animation: heroGradientShift 12s ease-in-out infinite;
}

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

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 30% 10%, rgba(123, 204, 168, 0.25) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(244, 114, 182, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 10% 70%, rgba(252, 211, 77, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse 40% 30% at 70% 20%, rgba(196, 181, 253, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.015'/%3E%3C/svg%3E");
  pointer-events: none;
  opacity: 0.4;
}

/* Background Decoration */
.hero-decoration {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

/* Corner Vine Decorations — Desktop only */
.corner-vine {
  display: none;
  position: absolute;
  width: clamp(750px, 68vw, 1275px);
  height: auto;
  pointer-events: none;
  opacity: 0;
  z-index: 1;
}

.corner-vine-tl {
  top: 0;
  left: 0;
}

.corner-vine-tr {
  top: 0;
  right: 0;
}

.corner-vine-bl {
  bottom: 0;
  left: 0;
}

.corner-vine-br {
  bottom: 0;
  right: 0;
}

@media (min-width: 769px) {
  .corner-vine {
    display: block;
    opacity: 1;
  }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.5);
  padding: var(--space-2xl) var(--space-xl);
  box-shadow: 0 8px 32px rgba(20, 51, 42, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  background: rgba(59, 155, 116, 0.08);
  border: 1.5px solid rgba(59, 155, 116, 0.2);
  border-radius: var(--radius-full);
  padding: 6px 18px;
  margin-bottom: var(--space-lg);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  animation: fadeSlideDown 0.6s ease-out 0.2s both;
}

.hero-title {
  font-family: var(--font-heading);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  line-height: 1.1;
  color: var(--color-foreground);
  margin-bottom: var(--space-md);
  animation: fadeSlideDown 0.7s ease-out 0.35s both;
}

.hero-title-greeting {
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  font-weight: 500;
  color: var(--color-primary-dark);
  opacity: 0.9;
  letter-spacing: 0.02em;
}

.hero-title-name {
  font-size: clamp(3.2rem, 9.5vw, 6.2rem);
  font-weight: 700;
  color: var(--color-primary-dark);
  padding: 0 8px;
  position: relative;
  display: inline-block;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 520px;
  margin: 0 auto var(--space-xl);
  line-height: 1.8;
  animation: fadeSlideDown 0.7s ease-out 0.5s both;
  font-weight: 400;
}

.hero-date {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  animation: fadeSlideDown 0.7s ease-out 0.6s both;
  display: block;
  letter-spacing: 0.02em;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeSlideDown 0.7s ease-out 0.7s both;
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
  cursor: pointer;
  touch-action: manipulation;
  min-height: 48px;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  box-shadow: 0 4px 16px rgba(59, 155, 116, 0.35), 0 2px 4px rgba(59, 155, 116, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 28px rgba(59, 155, 116, 0.45), 0 4px 8px rgba(59, 155, 116, 0.2);
  background: linear-gradient(135deg, #45A880, var(--color-primary-dark));
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-primary-dark);
  border: 1.5px solid var(--color-border-strong);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.85);
}

/* Pulse animation for main CTA */
.btn-primary.pulse-glow {
  animation: pulseGlow 2.5s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 4px 16px rgba(59, 155, 116, 0.35), 0 2px 4px rgba(59, 155, 116, 0.2); }
  50%       { box-shadow: 0 8px 36px rgba(59, 155, 116, 0.55), 0 0 0 10px rgba(59, 155, 116, 0.06), 0 4px 8px rgba(59, 155, 116, 0.2); }
}

/* ── Scroll Indicator ────────────────────────────────────── */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-muted);
  font-size: 0.7rem;
  font-weight: 600;
  animation: fadeSlideDown 1s ease-out 1.2s both;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scroll-arrow {
  width: 18px;
  height: 18px;
  border-right: 2px solid var(--color-primary-light);
  border-bottom: 2px solid var(--color-primary-light);
  transform: rotate(45deg) translate(-2px, -2px);
  animation: bounceDown 1.5s ease-in-out infinite;
}

@keyframes bounceDown {
  0%, 100% { transform: rotate(45deg) translate(-2px, -2px); opacity: 1; }
  50%       { transform: rotate(45deg) translate(-2px, 4px); opacity: 0.5; }
}

/* ── Section Layout ──────────────────────────────────────── */
.section {
  padding: var(--space-3xl) var(--space-md);
  max-width: 1280px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-primary);
  background: rgba(59, 155, 116, 0.08);
  border: 1px solid rgba(59, 155, 116, 0.15);
  border-radius: var(--radius-full);
  padding: 5px 16px;
  margin-bottom: var(--space-md);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 700;
  color: var(--color-foreground);
  margin-bottom: var(--space-sm);
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--color-muted);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Divider ─────────────────────────────────────────────── */
.section-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  margin: 0 var(--space-md);
  border: none;
}

/* ── MESSAGE CARDS GRID ──────────────────────────────────── */
.section.messages-section {
  border-radius: 0;
  margin: 0;
  width: 100% !important;
  max-width: 100% !important;
  padding-left: var(--space-xl);
  padding-right: var(--space-xl);
  position: relative;
  background:
    radial-gradient(ellipse 60% 40% at 20% 20%, rgba(123, 204, 168, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 80% 30%, rgba(196, 181, 253, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 40% 40% at 50% 80%, rgba(244, 114, 182, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse 70% 30% at 10% 60%, rgba(252, 211, 77, 0.05) 0%, transparent 50%),
    linear-gradient(180deg, var(--color-primary-ultra) 0%, #F5FBF8 50%, var(--color-background) 100%);
}

.section.messages-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary), var(--color-accent), var(--color-accent-lavender), var(--color-accent-warm));
}

.messages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(340px, 100%), 1fr));
  gap: var(--space-xl);
}

/* ── Message Card ────────────────────────────────────────── */
.message-card {
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 0;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255, 255, 255, 0.6);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.card-body {
  padding: var(--space-lg) var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
  position: relative;
  flex: 1;
}

/* Controls inside Grid Card */
.card-controls {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  display: flex;
  gap: 4px;
  z-index: 5;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.message-card:hover .card-controls {
  opacity: 1;
  transform: translateY(0);
}

.btn-card-control {
  background: rgba(59, 155, 116, 0.08);
  color: var(--color-primary);
  border: none;
  border-radius: var(--radius-sm);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-card-control:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-1px);
}

.btn-card-delete:hover {
  background: #ef4444 !important;
  color: #fff;
}

/* Colored accent bar on top */
.message-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary), var(--color-accent));
  opacity: 0.6;
  transition: opacity var(--transition-base);
}

.message-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(59, 155, 116, 0.2);
}

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

.card-header {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-foreground);
  flex-shrink: 0;
  border: 2.5px solid rgba(255,255,255,0.9);
  box-shadow: 0 3px 10px rgba(0,0,0,0.1), 0 0 0 2px rgba(59, 155, 116, 0.1);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.message-card:hover .avatar {
  box-shadow: 0 4px 14px rgba(0,0,0,0.12), 0 0 0 3px rgba(59, 155, 116, 0.2);
  transform: scale(1.05);
}

.card-name {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-foreground);
  line-height: 1.2;
}

.card-tag {
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--color-primary);
  background: rgba(59, 155, 116, 0.08);
  border: 1px solid rgba(59, 155, 116, 0.15);
  border-radius: var(--radius-full);
  padding: 2px 10px;
  margin-top: 2px;
  display: inline-block;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.card-message {
  font-size: 0.925rem;
  color: var(--color-muted);
  line-height: 1.7;
  flex: 1;
  font-weight: 400;
}

/* ── Card Media ──────────────────────────────────────────── */
.card-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.card-media-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
  cursor: zoom-in;
}

.card-media:hover .card-media-image {
  transform: scale(1.04);
}

.card-media-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(20, 51, 42, 0.7), transparent);
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 20px var(--space-md) var(--space-sm);
}

.card-media-gift {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-primary-pale);
  border-radius: var(--radius-md);
  text-align: center;
}

.card-media-gift img {
  width: 100px;
  height: 100px;
  object-fit: contain;
  animation: float 3s ease-in-out infinite;
}

.card-media-gift-label {
  font-size: 0.875rem;
  color: var(--color-muted);
  font-weight: 500;
}

/* ── Embed Players ──────────────────────────────────────────── */
.media-item-embed {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.embed-player {
  width: 100%;
  border: none;
  border-radius: var(--radius-md);
}

.embed-spotify {
  height: 80px;
}

/* ── Card Embeds Section (separate from images) ─────────── */
.card-embeds {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0 var(--space-md) var(--space-sm);
}

.card-embed-item {
  border-radius: var(--radius-md);
  overflow: hidden;
}

/* ── Memory Wall Overlay ────────────────────────────────────── */
.memory-wall-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--color-bg);
  overflow-y: auto;
  display: none;
  animation: fadeIn 0.3s ease;
}

.memory-wall-overlay.open {
  display: block;
}

.memory-wall-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 26, 22, 0.9);
  backdrop-filter: blur(20px);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
}

.memory-wall-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
}

.memory-wall-close {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-card-bg);
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.memory-wall-close:hover {
  background: var(--color-primary-pale);
  border-color: var(--color-accent);
}

.memory-wall-grid {
  padding: var(--space-lg) var(--space-md);
  overflow-y: auto;
  height: calc(100vh - 60px);
}

.memory-wall-title {
  text-align: center;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: memoryFadeIn 0.6s ease 0.2s both;
}

.memory-wall-photos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(180px, 45%), 1fr));
  gap: var(--space-md);
  max-width: 900px;
  margin: 0 auto;
  padding-bottom: var(--space-xl);
}

.memory-photo-card {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  cursor: zoom-in;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  animation: memoryFadeIn 0.5s ease both;
}

.memory-photo-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.memory-photo-img {
  aspect-ratio: 1;
  overflow: hidden;
}

.memory-photo-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.memory-photo-card:hover .memory-photo-img img {
  transform: scale(1.06);
}

.memory-photo-sender {
  padding: 10px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-muted);
  text-align: center;
}

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

/* ── Share Badge Modal ──────────────────────────────────────── */
.share-badge-overlay {
  position: fixed;
  inset: 0;
  z-index: 10001;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.share-badge-overlay.open {
  display: flex;
}

.share-badge-container {
  text-align: center;
  max-width: 420px;
  width: 90%;
}

.share-badge-title {
  color: #fff;
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.share-badge-canvas-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  margin-bottom: var(--space-lg);
}

.share-badge-canvas-wrapper canvas {
  width: 100%;
  display: block;
}

.share-badge-actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
}

.share-badge-actions button {
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  border: none;
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-badge-download {
  background: var(--color-accent);
  color: var(--color-bg);
}

.btn-badge-download:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-badge-close {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
}

.btn-badge-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ── GALLERY SECTION ─────────────────────────────────────── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(240px, 100%), 1fr));
  gap: var(--space-md);
}

.gallery-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  aspect-ratio: 1;
  cursor: zoom-in;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.06);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20, 51, 42, 0.5), transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
}

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

.gallery-item-overlay span {
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
}

/* ── LIGHTBOX ────────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 14, 0.92);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-inner {
  max-width: min(90vw, 900px);
  max-height: 90dvh;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--transition-base);
  box-shadow: 0 32px 80px rgba(0,0,0,0.5);
}

.lightbox.open .lightbox-inner {
  transform: scale(1);
}

.lightbox-inner img {
  width: 100%;
  height: auto;
  max-height: 90dvh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.15);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), transform var(--transition-fast);
  backdrop-filter: blur(4px);
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.2);
  transform: scale(1.05);
}

/* ── SLIDESHOW / PLAY ALL MODE ───────────────────────────── */
.slideshow-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #0D1F17, #0A1A0F, #0F1A14);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
  overflow-y: auto;
}

.slideshow-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* Background bokeh */
.slideshow-overlay::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(59, 155, 116, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(244, 114, 182, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(252, 211, 77, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.slideshow-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  padding: var(--space-md) var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  z-index: 10;
  background: linear-gradient(180deg, rgba(13,31,23,0.95) 0%, rgba(13,31,23,0) 100%);
}

.slideshow-progress {
  display: flex;
  gap: 6px;
  flex: 1;
}

.slideshow-progress-dot {
  height: 4px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.2);
  flex: 1;
  transition: background var(--transition-base);
  max-width: 60px;
}

.slideshow-progress-dot.done {
  background: var(--color-primary);
}

.slideshow-progress-dot.active {
  background: #fff;
}

.slideshow-close-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.8);
  border: 1px solid rgba(255,255,255,0.1);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  margin-left: var(--space-lg);
  flex-shrink: 0;
}

.slideshow-close-btn:hover {
  background: rgba(255,255,255,0.15);
  color: #fff;
  transform: scale(1.05);
}

.slideshow-main {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 0 var(--space-md) var(--space-md);
}

/* Envelope container in slideshow */
.envelope-container {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 600px;
  height: 400px;
  position: relative;
}

.envelope-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  perspective: 1200px;
  transition: transform 0.6s ease-in-out, opacity 0.6s ease-in-out;
  opacity: 0;
  transform: scale(0.8) translateY(50px);
}

.envelope-wrapper.open {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.envelope {
  position: absolute;
  bottom: 0;
  left: 5%;
  width: 90%;
  height: 70%;
  background-color: #f7eedb;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  transform-style: preserve-3d;
  transition: transform 0.8s ease-in-out, opacity 0.8s ease-in-out;
}

/* Shift envelope down slightly and dim when card slides up */
.envelope-wrapper.open .envelope {
  transform: translateY(60px) scale(0.9);
  opacity: 0.65;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.envelope-back {
  position: absolute;
  inset: 0;
  background-color: #ecdab9;
  border-radius: var(--radius-md);
}

.envelope-flap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background-color: #dfcea5;
  clip-path: polygon(0 0, 50% 100%, 100% 0);
  transform-origin: top;
  transform: rotateX(0deg);
  transition: transform 0.5s ease-in-out, z-index 0s 0.2s;
  z-index: 4;
}

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

.envelope-left-fold {
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  background-color: #ecdab9;
  clip-path: polygon(0 0, 100% 50%, 0 100%);
  border-bottom-left-radius: var(--radius-md);
  border-top-left-radius: var(--radius-md);
  z-index: 3;
}

.envelope-right-fold {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background-color: #ecdab9;
  clip-path: polygon(100% 0, 0 50%, 100% 100%);
  border-bottom-right-radius: var(--radius-md);
  border-top-right-radius: var(--radius-md);
  z-index: 3;
}

.envelope-bottom-fold {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60%;
  background-color: #e5d3ab;
  clip-path: polygon(0 100%, 50% 0, 100% 100%);
  border-bottom-left-radius: var(--radius-md);
  border-bottom-right-radius: var(--radius-md);
  z-index: 3;
}

/* Scrollbar design for letter-card */
.letter-card {
  position: absolute;
  bottom: 10px;
  left: 5%;
  width: 90%;
  height: 90%;
  background: linear-gradient(180deg, #fffdf8 0%, #fff 100%);
  border-radius: var(--radius-md);
  padding: 0;
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
  z-index: 2;
  opacity: 0;
  pointer-events: none;
  transform: translateY(35px) scale(0.95);
  transition: transform 0.7s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.5s ease-out, z-index 0s 0.3s;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary-light) transparent;
  border: 1px solid rgba(168, 213, 190, 0.3);
  display: flex;
  flex-direction: column;
}

.letter-body {
  padding: var(--space-lg) var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  text-align: center;
}

/* Scrollbar design for letter-card */
.letter-card::-webkit-scrollbar {
  width: 6px;
}
.letter-card::-webkit-scrollbar-thumb {
  background-color: var(--color-primary-light);
  border-radius: var(--radius-full);
}

.envelope-wrapper.open .letter-card {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(-130px) scale(1.1);
  z-index: 10;
  box-shadow: 0 15px 35px rgba(0,0,0,0.25);
}

/* Content styles inside letter card */
.slide-avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-foreground);
  margin: 0 auto var(--space-sm);
  border: 2px solid rgba(0,0,0,0.05);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  flex-shrink: 0;
}

/* Avatar inside wall letter header - don't auto center */
.wall-letter-header .slide-avatar {
  width: 42px;
  height: 42px;
  margin: 0;
  font-size: 1.2rem;
}

.slide-name {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: var(--space-sm);
  text-align: center;
}

.slide-message {
  font-size: 0.95rem;
  color: var(--color-foreground);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: var(--space-md);
  text-align: center;
  max-height: 200px;
  overflow-y: auto;
  padding: 0 var(--space-xs);
}

.slide-media-container {
  margin-top: auto;
  width: 100%;
}

.slideshow-footer {
  padding: var(--space-lg) var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
}

.slideshow-counter {
  color: rgba(255,255,255,0.5);
  font-size: 0.875rem;
  min-width: 60px;
  text-align: center;
}

.slideshow-nav-btn {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.8);
  border: 1px solid rgba(255,255,255,0.15);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.slideshow-nav-btn:hover:not(:disabled) {
  background: rgba(255,255,255,0.2);
  color: #fff;
  transform: scale(1.05);
}

.slideshow-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.slideshow-music-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: rgba(59, 155, 116, 0.12);
  color: var(--color-primary-light);
  border: 1px solid rgba(59, 155, 116, 0.2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-xl);
}

.slideshow-music-btn:hover {
  background: rgba(59, 155, 116, 0.2);
  transform: scale(1.05);
}

/* ── FOOTER ──────────────────────────────────────────────── */
.footer {
  text-align: center;
  padding: var(--space-3xl) var(--space-md) var(--space-2xl);
  background:
    radial-gradient(ellipse 60% 50% at 30% 50%, rgba(123, 204, 168, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 70% 40%, rgba(244, 114, 182, 0.05) 0%, transparent 50%),
    linear-gradient(180deg, var(--color-primary-ultra) 0%, var(--color-primary-pale) 100%);
  border-top: none;
  position: relative;
  overflow: hidden;
}

/* Wave separator on footer */
.footer::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--color-background);
  clip-path: ellipse(55% 100% at 50% 0%);
}

.footer::after {
  content: '';
  position: absolute;
  top: 56px;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent 10%, var(--color-primary-light), var(--color-primary), var(--color-accent), var(--color-accent-lavender), transparent 90%);
  opacity: 0.5;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--color-primary-darker), var(--color-primary), var(--color-primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-text {
  color: var(--color-muted);
  font-size: 1rem;
  max-width: 400px;
  margin: 0 auto;
  line-height: 1.7;
  font-weight: 400;
}

.footer-hearts {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  font-size: 1.5rem;
}

.footer-hearts span {
  transition: transform var(--transition-bounce), filter var(--transition-base);
  display: inline-block;
  cursor: default;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.footer-hearts span:hover {
  transform: scale(1.4) translateY(-6px);
  filter: drop-shadow(0 4px 12px rgba(59, 155, 116, 0.3));
}

/* ── Floating Animation ──────────────────────────────────── */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

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

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { transform: scaleX(0); transform-origin: left; }
  to   { transform: scaleX(1); transform-origin: left; }
}

/* Scroll-triggered reveal */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-stagger.visible > *:nth-child(1)  { opacity: 1; transform: none; transition-delay: 0ms; }
.reveal-stagger.visible > *:nth-child(2)  { opacity: 1; transform: none; transition-delay: 80ms; }
.reveal-stagger.visible > *:nth-child(3)  { opacity: 1; transform: none; transition-delay: 160ms; }
.reveal-stagger.visible > *:nth-child(4)  { opacity: 1; transform: none; transition-delay: 240ms; }
.reveal-stagger.visible > *:nth-child(5)  { opacity: 1; transform: none; transition-delay: 320ms; }
.reveal-stagger.visible > *:nth-child(6)  { opacity: 1; transform: none; transition-delay: 400ms; }
.reveal-stagger.visible > *:nth-child(7)  { opacity: 1; transform: none; transition-delay: 480ms; }
.reveal-stagger.visible > *:nth-child(8)  { opacity: 1; transform: none; transition-delay: 560ms; }
.reveal-stagger.visible > *:nth-child(n+9){ opacity: 1; transform: none; transition-delay: 640ms; }

/* ── Decorative Floating Elements ────────────────────────── */
.float-element {
  position: absolute;
  pointer-events: none;
  animation: float var(--float-duration, 4s) ease-in-out infinite;
  animation-delay: var(--float-delay, 0s);
  opacity: var(--float-opacity, 0.6);
  font-size: var(--float-size, 1.5rem);
}

/* ── Stats Bar ───────────────────────────────────────────── */
.stats-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
  padding: var(--space-xl) var(--space-2xl);
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  box-shadow: 0 4px 24px rgba(59, 155, 116, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.6);
  margin: 0 var(--space-md) var(--space-2xl);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.stat-item {
  text-align: center;
  transition: transform var(--transition-base);
}

.stat-item:hover {
  transform: translateY(-3px);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  text-shadow: 0 2px 8px rgba(59, 155, 116, 0.15);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--color-muted);
  font-weight: 600;
  margin-top: 6px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, transparent, rgba(59, 155, 116, 0.2), transparent);
}

/* ── Reduced Motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .section {
    padding: var(--space-2xl) var(--space-md);
  }

  .section.messages-section {
    margin: 0;
    width: 100% !important;
    border-radius: 0;
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .hero-content {
    padding: var(--space-xl) var(--space-lg);
  }

  .slide-card {
    padding: var(--space-xl) var(--space-lg);
  }

  .stats-bar {
    gap: var(--space-lg);
    padding: var(--space-lg);
  }

  .stat-divider {
    display: none;
  }

  .slideshow-header {
    padding: var(--space-md) var(--space-lg);
  }

  .slideshow-footer {
    padding: var(--space-md) var(--space-lg);
  }
}

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  .messages-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-content {
    padding: var(--space-xl) var(--space-md);
  }
}

/* ── Music Player Toast ──────────────────────────────────── */
.music-toast {
  position: fixed;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-full);
  padding: 10px 20px 10px 14px;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-overlay);
  transition: transform var(--transition-slow);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-foreground);
  white-space: nowrap;
}

.music-toast.show {
  transform: translateX(-50%) translateY(0);
}

.music-toast-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: rgba(59, 155, 116, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* ── Confetti Canvas ─────────────────────────────────────── */
#confetti-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: var(--z-overlay);
}

/* ── Collage Grid Layouts (Up to 5 items) ────────────────── */
.media-grid {
  display: grid;
  gap: 6px;
  margin-top: var(--space-md);
  border-radius: var(--radius-md);
  overflow: hidden;
  width: 100%;
}

/* Break out of card padding to span edge-to-edge horizontally and bottom-align */
.message-card .media-grid,
.letter-card .media-grid {
  width: 100%;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  border-top: 1px solid var(--color-border);
  margin-top: 0;
}

.letter-card .media-grid {
  border-radius: 0 0 var(--radius-md) var(--radius-md); /* matching letter-card radius */
}

.media-grid-1 { grid-template-columns: 1fr; }
.media-grid-2 { grid-template-columns: 1fr 1fr; }
.media-grid-3 { grid-template-columns: 2fr 1fr; grid-template-rows: 1fr 1fr; }
.media-grid-3 .media-item:first-child { grid-row: span 2; }
.media-grid-4 { grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(2, 1fr); }
.media-grid-5 { grid-template-columns: repeat(6, 1fr); }
.media-grid-5 .media-item:nth-child(1) { grid-column: span 3; }
.media-grid-5 .media-item:nth-child(2) { grid-column: span 3; }
.media-grid-5 .media-item:nth-child(3) { grid-column: span 2; }
.media-grid-5 .media-item:nth-child(4) { grid-column: span 2; }
.media-grid-5 .media-item:nth-child(5) { grid-column: span 2; }

.media-item {
  position: relative;
  overflow: hidden;
  background: var(--color-primary-pale);
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
}

.media-grid:not(.media-grid-1) .media-item {
  aspect-ratio: 4 / 3;
}

.media-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
  cursor: zoom-in;
}

.media-item img:hover {
  transform: scale(1.05);
}

.media-item-gift {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm);
  background: var(--color-primary-pale);
  text-align: center;
  aspect-ratio: 16 / 9;
  border-top: 1px solid var(--color-border);
  border-bottom: none;
  border-left: none;
  border-right: none;
  cursor: pointer;
  transition: transform var(--transition-base), background var(--transition-base);
}

.media-grid:not(.media-grid-1) .media-item-gift {
  aspect-ratio: 4 / 3;
}

.media-item-gift:hover {
  transform: translateY(-2px);
  background: var(--color-primary-light);
}

.media-item-gift img {
  width: 60px;
  height: 60px;
  object-fit: contain;
  animation: float 3s ease-in-out infinite;
}

.media-item-gift-label {
  font-size: 0.75rem;
  color: var(--color-muted);
  font-weight: 600;
  margin-top: 4px;
  display: block;
}

/* Link attachment card */
.media-item-link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: var(--space-md);
  background: linear-gradient(135deg, rgba(255,255,255,0.6), var(--color-primary-pale));
  border-top: 1px solid var(--color-border);
  text-decoration: none;
  aspect-ratio: auto;
  min-height: 56px;
  cursor: pointer;
  transition: transform var(--transition-fast), background var(--transition-fast);
  gap: 4px;
}

.media-item-link:hover {
  background: var(--color-primary-pale);
  transform: translateY(-2px);
}

.media-link-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.media-link-url {
  font-size: 0.7rem;
  color: var(--color-muted);
  word-break: break-all;
  opacity: 0.7;
}

/* Sticker on message card */
.card-sticker {
  position: absolute;
  bottom: 8px;
  right: 10px;
  font-size: 1.6rem;
  opacity: 0.5;
  pointer-events: none;
  transform: rotate(12deg);
  transition: transform var(--transition-bounce), opacity var(--transition-base);
}

.message-card:hover .card-sticker {
  opacity: 0.9;
  transform: rotate(0deg) scale(1.2);
}

/* User sticker on wall letter (centered, larger) */
.wall-letter-user-sticker {
  position: absolute;
  top: 50%;
  right: 16px;
  transform: translateY(-50%) rotate(12deg);
  font-size: 2.2rem;
  opacity: 0.15;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.wall-letter:hover .wall-letter-user-sticker {
  opacity: 0.3;
}

/* ── Modal Overlay & Card (Guestbook Form) ──────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 14, 0.5);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.7);
  transform: translateY(20px);
  transition: transform var(--transition-base);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.modal-overlay.open .modal-card {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: rgba(59, 155, 116, 0.08);
  color: var(--color-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--color-primary-light);
  transform: scale(1.05);
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-foreground);
  margin-bottom: var(--space-lg);
  text-align: center;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  text-align: left;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-foreground);
  letter-spacing: 0.01em;
}

.form-group input[type="text"],
.form-group textarea {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  outline: none;
  background-color: rgba(255, 255, 255, 0.6);
  color: var(--color-foreground);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.form-group input[type="text"]:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 155, 116, 0.1);
  background-color: rgba(255, 255, 255, 0.85);
}

.avatar-picker-group {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.avatar-upload-btn {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: rgba(59, 155, 116, 0.06);
  color: var(--color-primary);
  border: 1.5px dashed var(--color-primary);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.avatar-upload-btn:hover {
  background: var(--color-primary-pale);
  transform: translateY(-1px);
}

.file-status {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.avatar-preview-circle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-size: cover;
  background-position: center;
  border: 2px solid var(--color-primary-light);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

/* Emoji Picker styling */
.emoji-picker-group {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-xs);
}

.emoji-choice {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.6);
  border: 1.5px solid var(--color-border-strong);
  color: var(--color-foreground);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.emoji-choice:hover {
  border-color: var(--color-primary-light);
  background: var(--color-primary-pale);
  transform: translateY(-2px);
}

.emoji-choice.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(59, 155, 116, 0.25);
  transform: scale(1.08);
}

/* Theme Picker styling */
.theme-picker-group {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-xs);
  flex-wrap: wrap;
}

.theme-choice-label {
  cursor: pointer;
  display: inline-block;
  position: relative;
}

.theme-dot {
  display: block;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-bounce), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.theme-dot:hover {
  transform: scale(1.15);
  box-shadow: var(--shadow-md);
}

/* Highlight checked state */
.theme-choice-label input[type="radio"]:checked + .theme-dot {
  transform: scale(1.2);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 155, 116, 0.25), var(--shadow-md);
}

.env-theme-dot-0 { background-color: #eeddb9; border: 1.5px solid #d4c29c; }
.env-theme-dot-1 { background-color: #d1dfc5; border: 1.5px solid #b6c4ab; }
.env-theme-dot-2 { background-color: #f7d2de; border: 1.5px solid #dbaebc; }
.env-theme-dot-3 { background-color: #cbe5f9; border: 1.5px solid #a8c8e1; }
.env-theme-dot-4 { background-color: #e5ceff; border: 1.5px solid #c8afe5; }
.env-theme-dot-5 { background-color: #fef08a; border: 1.5px solid #e1d471; }
.env-theme-dot-6 { background-color: #fbd2c2; border: 1.5px solid #e1a792; }
.env-theme-dot-7 { background-color: #b4e3cd; border: 1.5px solid #87c7ab; }

.attachment-actions {
  display: flex;
  gap: var(--space-sm);
}

.btn-attach {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.6);
  border: 1.5px solid var(--color-border-strong);
  color: var(--color-foreground);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex: 1;
}

.btn-attach:hover {
  border-color: var(--color-primary-light);
  background: var(--color-primary-ultra);
  transform: translateY(-1px);
}

.gift-picker-popover {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-top: var(--space-xs);
  box-shadow: var(--shadow-md);
}

.gift-picker-popover p {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-muted);
  margin-bottom: var(--space-xs);
}

.link-input-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.link-url-input {
  flex: 2;
  min-width: 160px;
  padding: 10px 14px;
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  background: rgba(255, 255, 255, 0.6);
  color: var(--color-foreground);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.link-url-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 155, 116, 0.1);
}

.link-label-input {
  flex: 1;
  min-width: 100px;
  padding: 10px 14px;
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  background: rgba(255, 255, 255, 0.6);
  color: var(--color-foreground);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.link-label-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 155, 116, 0.1);
}

.btn-link-add {
  padding: 10px 18px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-link-add:hover {
  background: linear-gradient(135deg, #45A880, var(--color-primary-dark));
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 155, 116, 0.3);
}

.attachments-preview-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: var(--space-sm);
}

.attachment-preview-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: rgba(59, 155, 116, 0.06);
  border: 1px solid rgba(59, 155, 116, 0.1);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--color-foreground);
}

.btn-remove-attachment {
  background: none;
  border: none;
  color: #ef4444;
  font-weight: bold;
  cursor: pointer;
  font-size: 1rem;
  padding: 0 4px;
  transition: transform var(--transition-fast);
}

.btn-remove-attachment:hover {
  transform: scale(1.2);
}

/* ── Slideshow Desk Spread Layout ──────────────────────── */

.slideshow-progress,
.slideshow-footer {
  display: none !important;
}

.desk-layout {
  width: 100%;
  max-width: 1200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-md);
  margin-top: 10px;
}

.desk-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: rgba(255,255,255,0.95);
  text-align: center;
  margin-bottom: var(--space-sm);
  text-shadow: 0 2px 16px rgba(59, 155, 116, 0.3);
}

/* ── Letter Wall (replaces desk-spread) ──────────────── */
.letter-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-xl);
  width: 100%;
  padding: var(--space-md);
  padding-bottom: var(--space-2xl);
}

/* ── Individual Letter on the Wall ─────────────────── */
.wall-letter {
  position: relative;
  padding: var(--space-lg) var(--space-lg) var(--space-md);
  border-radius: var(--radius-md);
  box-shadow: 0 6px 24px rgba(0,0,0,0.15);
  transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.4s ease;
  animation: letterPopIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) var(--letter-delay, 0ms) both;
  overflow: hidden;
}

@keyframes letterPopIn {
  from { opacity: 0; transform: scale(0.85) rotate(-3deg) translateY(20px); }
  to { opacity: 1; transform: scale(1) rotate(var(--letter-rotate, 0deg)) translateY(0); }
}

/* Subtle random rotations for organic feel */
.wall-letter:nth-child(8n+1) { --letter-rotate: -1.5deg; }
.wall-letter:nth-child(8n+2) { --letter-rotate: 2deg; }
.wall-letter:nth-child(8n+3) { --letter-rotate: -0.8deg; }
.wall-letter:nth-child(8n+4) { --letter-rotate: 1.2deg; }
.wall-letter:nth-child(8n+5) { --letter-rotate: -2deg; }
.wall-letter:nth-child(8n+6) { --letter-rotate: 0.5deg; }
.wall-letter:nth-child(8n+7) { --letter-rotate: -1deg; }
.wall-letter:nth-child(8n+8) { --letter-rotate: 1.8deg; }
.wall-letter { transform: rotate(var(--letter-rotate, 0deg)); }

.wall-letter:hover {
  transform: scale(1.04) rotate(0deg) translateY(-6px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.25);
  z-index: 10;
}

/* ── Washi Tape Strips ────────────────────────────── */
.wall-letter-tape {
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(-2deg);
  width: 80px;
  height: 22px;
  border-radius: 2px;
  opacity: 0.85;
  z-index: 5;
}
.tape-pink { background: linear-gradient(90deg, #f9a8d4cc, #f472b6cc); }
.tape-green { background: linear-gradient(90deg, #a8d5becc, #6ee7b7cc); }
.tape-lavender { background: linear-gradient(90deg, #ddd6fecc, #c4b5fdcc); }
.tape-yellow { background: linear-gradient(90deg, #fde68acc, #fbbf24cc); }
.tape-mint { background: linear-gradient(90deg, #a3dec2cc, #6ee7b7cc); }
.tape-peach { background: linear-gradient(90deg, #fbc2abcc, #fb923ccc); }
.tape-rose { background: linear-gradient(90deg, #fda4afcc, #f43f5ecc); }
.tape-sky { background: linear-gradient(90deg, #bae6fdcc, #38bdf8cc); }

/* ── Corner Sticker ───────────────────────────────── */
.wall-letter-corner-sticker {
  position: absolute;
  top: 8px;
  right: 10px;
  font-size: 1.2rem;
  opacity: 0.7;
  transform: rotate(15deg);
  pointer-events: none;
  z-index: 3;
}

/* ── Stamp ────────────────────────────────────────── */
.wall-letter-stamp {
  position: absolute;
  bottom: 8px;
  right: 10px;
  font-size: 1.4rem;
  opacity: 0.3;
  pointer-events: none;
}

/* ── Bottom-left Sticker ──────────────────────────── */
.wall-letter-sticker {
  position: absolute;
  bottom: 8px;
  left: 10px;
  font-size: 1.1rem;
  opacity: 0.5;
  transform: rotate(-10deg);
  pointer-events: none;
}

/* ── Letter Controls (edit/delete) ────────────────── */
.wall-letter-controls {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  display: flex;
  gap: 4px;
  z-index: 20;
  opacity: 0;
  transition: opacity var(--transition-base);
}
.wall-letter:hover .wall-letter-controls { opacity: 1; }

/* ── Letter Header ────────────────────────────────── */
.wall-letter-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  margin-top: var(--space-sm);
}

.wall-letter-from {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}

/* ── Letter Body ──────────────────────────────────── */
.wall-letter-body { margin-bottom: var(--space-sm); }

.wall-letter-message {
  font-style: italic;
  color: var(--color-foreground);
  line-height: 1.6;
  margin: 0;
}

/* Auto-size text classes */
.wall-text-lg { font-size: 1.15rem; line-height: 1.5; }
.wall-text-md { font-size: 0.95rem; line-height: 1.6; }
.wall-text-sm { font-size: 0.825rem; line-height: 1.55; }

/* ── Media inside wall letter ─────────────────────── */
.wall-letter-media {
  margin-top: var(--space-sm);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.wall-letter-media .embed-player {
  height: 80px;
  border-radius: var(--radius-sm);
}

.wall-letter-media .card-embeds {
  padding: 0;
}

/* ── Paper Texture Classes ────────────────────────── */
.paper-lined { background-image: repeating-linear-gradient(transparent, transparent 27px, rgba(76,175,135,0.08) 27px, rgba(76,175,135,0.08) 28px); }
.paper-dotted { background-image: radial-gradient(circle, rgba(76,175,135,0.08) 1px, transparent 1px); background-size: 16px 16px; }
.paper-grid { background-image: linear-gradient(rgba(76,175,135,0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(76,175,135,0.06) 1px, transparent 1px); background-size: 20px 20px; }
.paper-plain { /* plain: no pattern */ }
.paper-kraft { background-color: rgba(245, 235, 220, 0.3); }
.paper-watercolor { background-image: radial-gradient(ellipse at 30% 50%, rgba(168,213,190,0.08) 0%, transparent 70%), radial-gradient(ellipse at 70% 30%, rgba(249,168,212,0.06) 0%, transparent 70%); }
.paper-notebook { background-image: linear-gradient(transparent 23px, rgba(200,50,50,0.08) 23px, rgba(200,50,50,0.08) 24px, transparent 24px); background-size: 100% 25px; }
.paper-vintage { background-color: rgba(252,246,235,0.4); }

/* ── Theme colors on wall letters ─────────────────── */
.wall-letter.env-theme-0 { background-color: #fbfaf8; border: 1px solid #ebdcc5; }
.wall-letter.env-theme-1 { background-color: #f9fbf8; border: 1px solid #c7e8d5; }
.wall-letter.env-theme-2 { background-color: #fffcfd; border: 1px solid #f9a8d4; }
.wall-letter.env-theme-3 { background-color: #fafcff; border: 1px solid #bae6fd; }
.wall-letter.env-theme-4 { background-color: #faf9ff; border: 1px solid #ddd6fe; }
.wall-letter.env-theme-5 { background-color: #fffffb; border: 1px solid #fde68a; }
.wall-letter.env-theme-6 { background-color: #fffaf8; border: 1px solid #f9a885; }
.wall-letter.env-theme-7 { background-color: #f5fbf8; border: 1px solid #8ccdae; }

@media (max-width: 600px) {
  .letter-wall {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

/* Individual envelope on the desk */
.envelope-item {
  aspect-ratio: 3 / 2;
  position: relative;
  cursor: pointer;
  perspective: 1200px;
  transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Random tilt values for scattered look */
.envelope-item:nth-child(3n+1) { transform: rotate(-3deg); }
.envelope-item:nth-child(3n+2) { transform: rotate(4deg) translateY(4px); }
.envelope-item:nth-child(3n+3) { transform: rotate(-2deg) translateY(-2px); }

.envelope-item:hover {
  transform: scale(1.08) rotate(0deg) translateY(-12px);
  z-index: 100;
  filter: brightness(1.05);
}

.envelope-item .envelope-wrapper {
  width: 100%;
  height: 100%;
  opacity: 1;
  transform: none;
}

.envelope-item .envelope {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
}

/* Label on the envelope front */
.envelope-label {
  position: absolute;
  top: 45%;
  left: 10%;
  right: 10%;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px dashed rgba(0, 0, 0, 0.18);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: rgba(0, 0, 0, 0.8);
  pointer-events: none;
  z-index: 4;
  text-align: left;
}

.envelope-label-to {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.6;
}

.envelope-label-from {
  font-weight: 700;
  margin-top: 1px;
  font-size: 0.875rem;
}

/* Focused envelope state overlay */
.envelope-item.active {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 0;
  background: rgba(10, 20, 14, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transform: none;
  cursor: default;
  animation: fadeInBackdrop 0.3s ease-out;
}

@keyframes fadeInBackdrop {
  from { opacity: 0; }
  to { opacity: 1; }
}

.envelope-item.active .envelope-label {
  display: none;
}

/* ──────── Responsiveness for Active Open Envelopes ──────── */

/* 1. Desktop View (Side-by-Side Split) */
@media (min-width: 768px) {
  .envelope-item.active .envelope-wrapper {
    width: 100%;
    max-width: 960px;
    height: 480px;
    transform: scale(1);
    opacity: 1;
    perspective: 1200px;
    transition: max-width 0.7s cubic-bezier(0.25, 1, 0.5, 1);
  }

  .envelope-item.active .envelope {
    position: absolute;
    bottom: 80px;
    left: 50%;
    width: 440px;
    height: 300px;
    transform: translateX(-50%) translateY(0) scale(1);
    transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1), 
                left 0.8s cubic-bezier(0.25, 1, 0.5, 1), 
                opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1),
                box-shadow 0.8s cubic-bezier(0.25, 1, 0.5, 1);
  }

  .envelope-item.active .envelope-wrapper.open .envelope {
    transform: translate(-105%, -10px) scale(0.9);
    opacity: 0.85;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  }

  .envelope-item.active .letter-card {
    position: absolute;
    bottom: 10px;
    left: 5%;
    width: 90%;
    height: 90%;
    transform: translateY(35px) scale(0.95);
    transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1), 
                width 0.8s cubic-bezier(0.25, 1, 0.5, 1), 
                height 0.8s cubic-bezier(0.25, 1, 0.5, 1),
                opacity 0.6s ease-out,
                z-index 0s 0.3s;
  }

  .envelope-item.active .envelope-wrapper.open .letter-card {
    width: 440px;
    height: 480px;
    transform: translate(110%, -100px) scale(1.11);
    opacity: 1;
    pointer-events: auto;
    z-index: 10;
    box-shadow: 0 20px 50px rgba(0,0,0,0.35);
  }
}

/* 2. Mobile View (Vertical Stacking & Taller Card) */
@media (max-width: 767px) {
  .envelope-item.active .envelope-wrapper {
    width: 100%;
    max-width: 340px;
    height: 450px;
    transform: scale(1);
    opacity: 1;
    perspective: 1200px;
  }

  .envelope-item.active .envelope {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 240px;
    transform: translateY(0) scale(1);
    transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1);
  }

  .envelope-item.active .envelope-wrapper.open .envelope {
    transform: translateY(120px) scale(0.85);
    opacity: 0.7;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  }

  .envelope-item.active .letter-card {
    position: absolute;
    bottom: 10px;
    left: 5%;
    width: 90%;
    height: 90%;
    transform: translateY(35px) scale(0.95);
    transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1), height 0.8s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.6s ease-out, z-index 0s 0.3s;
  }

  .envelope-item.active .envelope-wrapper.open .letter-card {
    transform: translateY(-160px) scale(1.05);
    height: 380px;
    opacity: 1;
    pointer-events: auto;
    z-index: 10;
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
  }
}

/* Envelope Wax Seal */
.envelope-seal {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.8rem;
  z-index: 5;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.15));
  transition: transform var(--transition-base), opacity var(--transition-base), filter var(--transition-base);
  pointer-events: none;
}

/* Unopened envelope seal pulse glow */
.envelope-item:not(.letter-opened) .envelope-seal {
  animation: sealGlow 2.5s infinite ease-in-out;
}

/* Unopened envelope stand out glow shadow */
.envelope-item:not(.letter-opened) .envelope {
  box-shadow: 0 10px 30px rgba(59, 155, 116, 0.15), 0 0 15px rgba(59, 155, 116, 0.1);
  animation: envelopeGlow 3s infinite ease-in-out;
}

@keyframes envelopeGlow {
  0%, 100% {
    box-shadow: 0 10px 30px rgba(59, 155, 116, 0.15), 0 0 15px rgba(59, 155, 116, 0.1);
  }
  50% {
    box-shadow: 0 10px 30px rgba(59, 155, 116, 0.25), 0 0 25px rgba(59, 155, 116, 0.25);
  }
}

@keyframes sealGlow {
  0%, 100% {
    transform: translateX(-50%) scale(1);
    filter: drop-shadow(0 2px 6px rgba(59, 155, 116, 0.3));
  }
  50% {
    transform: translateX(-50%) scale(1.12);
    filter: drop-shadow(0 0 12px rgba(59, 155, 116, 0.7));
  }
}

/* Opened envelope seal cracked style */
.envelope-item.letter-opened .envelope-seal {
  opacity: 0.55;
  transform: translateX(-50%) rotate(25deg) scale(0.9);
  filter: grayscale(0.4) contrast(0.8) drop-shadow(0 1px 2px rgba(0,0,0,0.1));
}

.envelope-item:hover .envelope-seal {
  transform: translateX(-50%) scale(1.15);
}

.envelope-item.letter-opened:hover .envelope-seal {
  transform: translateX(-50%) rotate(25deg) scale(1.05);
}

/* Close button inside Letter Card */
.letter-close-btn {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: rgba(59, 155, 116, 0.1);
  color: var(--color-primary);
  border: none;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
  z-index: 100;
  font-size: 1.1rem;
}

.letter-close-btn:hover {
  background: var(--color-primary);
  color: #fff;
  transform: scale(1.1);
}

/* Controls inside Letter Card */
.letter-controls {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  display: flex;
  gap: 4px;
  z-index: 100;
  opacity: 0;
  transform: translateY(-3px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.letter-card:hover .letter-controls {
  opacity: 1;
  transform: translateY(0);
}

.btn-letter-control {
  background: rgba(59, 155, 116, 0.08);
  color: var(--color-primary);
  border: none;
  border-radius: var(--radius-sm);
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(4px);
}

.btn-letter-control:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-1px);
}

.btn-letter-delete:hover {
  background: #ef4444 !important;
  color: #fff;
}

/* Envelope Themes styling */
.env-theme-0 .envelope { background-color: #fcf6eb; }
.env-theme-0 .envelope-back, .env-theme-0 .envelope-left-fold, .env-theme-0 .envelope-right-fold { background-color: #f7eedb; }
.env-theme-0 .envelope-flap, .env-theme-0 .envelope-bottom-fold { background-color: #eeddb9; }
.env-theme-0 .letter-card { background: #fbfaf8; border: 1.5px solid #ebdcc5; }

.env-theme-1 .envelope { background-color: #f0f7e8; }
.env-theme-1 .envelope-back, .env-theme-1 .envelope-left-fold, .env-theme-1 .envelope-right-fold { background-color: #e3ebd9; }
.env-theme-1 .envelope-flap, .env-theme-1 .envelope-bottom-fold { background-color: #d1dfc5; }
.env-theme-1 .letter-card { background: #f9fbf8; border: 1.5px solid #c7e8d5; }

.env-theme-2 .envelope { background-color: #fff0f5; }
.env-theme-2 .envelope-back, .env-theme-2 .envelope-left-fold, .env-theme-2 .envelope-right-fold { background-color: #fce8ef; }
.env-theme-2 .envelope-flap, .env-theme-2 .envelope-bottom-fold { background-color: #f7d2de; }
.env-theme-2 .letter-card { background: #fffcfd; border: 1.5px solid #f9a8d4; }

.env-theme-3 .envelope { background-color: #f0f8ff; }
.env-theme-3 .envelope-back, .env-theme-3 .envelope-left-fold, .env-theme-3 .envelope-right-fold { background-color: #e3f2fd; }
.env-theme-3 .envelope-flap, .env-theme-3 .envelope-bottom-fold { background-color: #cbe5f9; }
.env-theme-3 .letter-card { background: #fafcff; border: 1.5px solid #bae6fd; }

.env-theme-4 .envelope { background-color: #faf5ff; }
.env-theme-4 .envelope-back, .env-theme-4 .envelope-left-fold, .env-theme-4 .envelope-right-fold { background-color: #f3e8ff; }
.env-theme-4 .envelope-flap, .env-theme-4 .envelope-bottom-fold { background-color: #e5ceff; }
.env-theme-4 .letter-card { background: #faf9ff; border: 1.5px solid #ddd6fe; }

.env-theme-5 .envelope { background-color: #fffdf5; }
.env-theme-5 .envelope-back, .env-theme-5 .envelope-left-fold, .env-theme-5 .envelope-right-fold { background-color: #fffbeb; }
.env-theme-5 .envelope-flap, .env-theme-5 .envelope-bottom-fold { background-color: #fef08a; }
.env-theme-5 .letter-card { background: #fffffb; border: 1.5px solid #fde68a; }

.env-theme-6 .envelope { background-color: #fff5f0; }
.env-theme-6 .envelope-back, .env-theme-6 .envelope-left-fold, .env-theme-6 .envelope-right-fold { background-color: #fdeade; }
.env-theme-6 .envelope-flap, .env-theme-6 .envelope-bottom-fold { background-color: #fbd2c2; }
.env-theme-6 .letter-card { background: #fffaf8; border: 1.5px solid #f9a885; }

.env-theme-7 .envelope { background-color: #e8f7f0; }
.env-theme-7 .envelope-back, .env-theme-7 .envelope-left-fold, .env-theme-7 .envelope-right-fold { background-color: #daf0e5; }
.env-theme-7 .envelope-flap, .env-theme-7 .envelope-bottom-fold { background-color: #b4e3cd; }
.env-theme-7 .letter-card { background: #f5fbf8; border: 1.5px solid #8ccdae; }

/* Dynamic Message Font Sizes */
.card-message.size-large,
.slide-message.size-large {
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.55;
}

.card-message.size-medium,
.slide-message.size-medium {
  font-size: 1rem;
  line-height: 1.65;
}

.card-message.size-small,
.slide-message.size-small {
  font-size: 0.875rem;
  line-height: 1.55;
}

/* ── Countdown Timer Styling ───────────────────────────── */
.countdown-container {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
  animation: fadeSlideDown 0.7s ease-out 0.65s both;
}

.countdown-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  min-width: 76px;
  box-shadow: 0 4px 16px rgba(59, 155, 116, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.5);
  transition: transform var(--transition-bounce), box-shadow var(--transition-base);
}

.countdown-card:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 24px rgba(59, 155, 116, 0.15);
}

.countdown-value {
  font-family: var(--font-body);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-primary-dark);
  line-height: 1;
  text-shadow: 0 1px 4px rgba(59, 155, 116, 0.1);
}

.countdown-label {
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 6px;
}

/* ── Like Button ─────────────────────────────────────────── */
.card-footer-row,
.wall-letter-like-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-sm);
}

.btn-card-share {
  background: none;
  border: none;
  color: var(--color-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.message-card:hover .btn-card-share {
  opacity: 0.6;
}

.btn-card-share:hover {
  opacity: 1 !important;
  color: var(--color-accent);
  background: var(--color-primary-pale);
  transform: translateY(-1px);
}

.btn-like {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  color: var(--color-muted);
  cursor: pointer;
  padding: 4px 10px 4px 6px;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.btn-like:hover {
  color: var(--color-accent);
  background: rgba(244, 114, 182, 0.08);
  transform: scale(1.05);
}

.btn-like.liked {
  color: var(--color-accent);
}

.btn-like.liked svg {
  filter: drop-shadow(0 1px 3px rgba(244, 114, 182, 0.4));
}

.btn-like svg {
  transition: transform var(--transition-fast);
}

.btn-like:hover svg {
  transform: scale(1.15);
}

.like-count {
  min-width: 12px;
  text-align: left;
}

/* Pop animation on like */
.btn-like.like-pop svg {
  animation: likePop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes likePop {
  0% { transform: scale(1); }
  30% { transform: scale(1.5); }
  60% { transform: scale(0.85); }
  100% { transform: scale(1); }
}

/* Wall letter like row — slightly different positioning */
.wall-letter-like-row {
  margin-top: var(--space-sm);
}

.wall-letter-like-row .btn-like {
  color: rgba(0, 0, 0, 0.25);
}

.wall-letter-like-row .btn-like:hover,
.wall-letter-like-row .btn-like.liked {
  color: var(--color-accent);
}

/* ── Intro Cutscene Overlay ──────────────────────────────── */
.intro-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: #0a0f0d;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.intro-overlay.visible {
  opacity: 1;
}

.intro-text-container {
  text-align: center;
  padding: var(--space-xl);
  max-width: 600px;
}

.intro-line {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 5vw, 3rem);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.4;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  min-height: 1.4em;
}

.intro-line.show {
  opacity: 1;
  transform: translateY(0);
}

.intro-skip-btn {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.3);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.intro-skip-btn:hover {
  color: rgba(255, 255, 255, 0.6);
  border-color: rgba(255, 255, 255, 0.3);
}

/* ── EMOJI REACTIONS ─────────────────────────────────────── */
.reaction-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--space-xs);
}

.btn-reaction {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(59, 155, 116, 0.05);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.85rem;
  line-height: 1;
  min-height: 30px;
}

.btn-reaction:hover {
  background: rgba(59, 155, 116, 0.1);
  border-color: rgba(59, 155, 116, 0.2);
  transform: scale(1.1);
}

.btn-reaction.reacted {
  background: rgba(59, 155, 116, 0.12);
  border-color: var(--color-primary-light);
  box-shadow: 0 0 8px rgba(59, 155, 116, 0.15);
}

.btn-reaction.has-count {
  background: rgba(59, 155, 116, 0.08);
  border-color: rgba(59, 155, 116, 0.12);
}

.reaction-emoji {
  font-size: 1rem;
  line-height: 1;
}

.reaction-count {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  min-width: 0;
}

.btn-reaction:not(.has-count) .reaction-count {
  display: none;
}

@keyframes reactionPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

.btn-reaction.reaction-pop {
  animation: reactionPop 0.3s ease-out;
}

/* Reactions in letter wall */
.wall-letter-like-row .reaction-row {
  justify-content: center;
}

.wall-letter-like-row .btn-reaction {
  font-size: 0.8rem;
  padding: 3px 8px;
  min-height: 26px;
}

/* ── VOICE RECORDER (Form) ───────────────────────────────── */
.voice-recorder {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.btn-voice-record {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  border-radius: var(--radius-full);
  background: rgba(59, 155, 116, 0.08);
  border: 1.5px solid rgba(59, 155, 116, 0.2);
  color: var(--color-foreground);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-voice-record:hover {
  background: rgba(59, 155, 116, 0.15);
  border-color: var(--color-primary-light);
}

.btn-voice-record.recording {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.4);
  color: #ef4444;
  animation: recordingPulse 1.5s ease-in-out infinite;
}

.btn-voice-record.recording .voice-record-icon {
  animation: recordingBlink 1s ease-in-out infinite;
}

@keyframes recordingPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
  50% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0.1); }
}

@keyframes recordingBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.voice-timer {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

.voice-preview {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  padding: 8px 12px;
  background: rgba(59, 155, 116, 0.06);
  border-radius: var(--radius-md);
  border: 1px solid rgba(59, 155, 116, 0.12);
}

.voice-preview audio {
  flex: 1;
  height: 36px;
  border-radius: var(--radius-sm);
}

.btn-voice-delete {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: rgba(239, 68, 68, 0.08);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.btn-voice-delete:hover {
  background: #ef4444;
  color: #fff;
}

/* ── VOICE PLAYER (on Cards) ─────────────────────────────── */
.voice-player {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 12px;
  background: rgba(59, 155, 116, 0.06);
  border-radius: var(--radius-full);
  border: 1px solid rgba(59, 155, 116, 0.12);
  margin-top: var(--space-xs);
}

.btn-voice-play {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(59, 155, 116, 0.3);
}

.btn-voice-play:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(59, 155, 116, 0.4);
}

.btn-voice-play.playing {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

.btn-voice-play.playing svg {
  display: none;
}

.btn-voice-play.playing::after {
  content: '⏹';
  font-size: 0.7rem;
}

.voice-player-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-muted);
  white-space: nowrap;
}

.voice-waveform {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 20px;
  flex: 1;
  justify-content: flex-end;
}

.voice-waveform span {
  display: block;
  width: 3px;
  border-radius: 2px;
  background: var(--color-primary-light);
  opacity: 0.5;
}

.voice-waveform span:nth-child(1) { height: 6px; }
.voice-waveform span:nth-child(2) { height: 12px; }
.voice-waveform span:nth-child(3) { height: 8px; }
.voice-waveform span:nth-child(4) { height: 16px; }
.voice-waveform span:nth-child(5) { height: 10px; }
.voice-waveform span:nth-child(6) { height: 14px; }
.voice-waveform span:nth-child(7) { height: 7px; }
.voice-waveform span:nth-child(8) { height: 11px; }

.btn-voice-play.playing ~ .voice-waveform span {
  animation: waveformBounce 0.6s ease-in-out infinite alternate;
  opacity: 0.8;
  background: var(--color-primary);
}

/* Since we can't use ~ from button to sibling through parent easily,
   let the parent handle it */
.voice-player:has(.btn-voice-play.playing) .voice-waveform span {
  animation: waveformBounce 0.6s ease-in-out infinite alternate;
  opacity: 0.8;
  background: var(--color-primary);
}

.voice-player:has(.btn-voice-play.playing) .voice-waveform span:nth-child(1) { animation-delay: 0s; }
.voice-player:has(.btn-voice-play.playing) .voice-waveform span:nth-child(2) { animation-delay: 0.1s; }
.voice-player:has(.btn-voice-play.playing) .voice-waveform span:nth-child(3) { animation-delay: 0.2s; }
.voice-player:has(.btn-voice-play.playing) .voice-waveform span:nth-child(4) { animation-delay: 0.05s; }
.voice-player:has(.btn-voice-play.playing) .voice-waveform span:nth-child(5) { animation-delay: 0.15s; }
.voice-player:has(.btn-voice-play.playing) .voice-waveform span:nth-child(6) { animation-delay: 0.25s; }
.voice-player:has(.btn-voice-play.playing) .voice-waveform span:nth-child(7) { animation-delay: 0.08s; }
.voice-player:has(.btn-voice-play.playing) .voice-waveform span:nth-child(8) { animation-delay: 0.18s; }

@keyframes waveformBounce {
  0% { transform: scaleY(0.5); }
  100% { transform: scaleY(1.3); }
}

/* Voice player in letter wall */
.wall-letter-body .voice-player {
  margin: var(--space-sm) 0;
}