/* ==========================================================================
   Celeste & Spencer Casamiento — Luxury Save the Date Stylesheet
   Theme: Refined, artistic, tactile, timeless quality
   ========================================================================== */

:root {
  --color-sage: #3f5038;
  --color-sage-deep: #2a3725;
  --color-sage-light: #5b6f52;
  --color-gold: #c8ab66;
  --color-gold-dark: #9e7f3b;
  --color-gold-light: #dfc88a;
  --color-ivory: #faf8f5;
  --color-linen: #f4efe6;
  --color-charcoal: #1c1e1b;
  --color-muted: #6b7066;
  --color-card-border: rgba(90, 110, 80, 0.25);
  
  --font-script: 'Alex Brush', cursive;
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --shadow-subtle: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-medium: 0 18px 45px rgba(25, 35, 20, 0.16);
  --shadow-deep: 0 25px 60px rgba(15, 20, 10, 0.25);
  --shadow-card: 0 15px 35px rgba(0, 0, 0, 0.18), 0 3px 10px rgba(0, 0, 0, 0.08);
  
  --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.3s ease;
}

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

html, body {
  width: 100%;
  height: 100%;
  min-height: 100vh;
  font-family: var(--font-serif);
  color: var(--color-charcoal);
  background-color: var(--color-ivory);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Texture Pattern */
body {
  background-image: 
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.4) 0%, rgba(245, 240, 230, 0.7) 100%),
    url('../assets/damask_bg.jpg');
  background-repeat: repeat;
  background-size: auto, 180px 180px;
}

/* Top Navigation Bar (Language & Sound Controls) */
.global-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 1.25rem;
  z-index: 1000;
  pointer-events: none;
}

.global-nav > * {
  pointer-events: auto;
}

.nav-btn {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(200, 171, 102, 0.4);
  padding: 0.5rem 1.15rem;
  border-radius: 30px;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-sage-deep);
  cursor: pointer;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.nav-btn:hover {
  background: #ffffff;
  border-color: var(--color-gold);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(200, 171, 102, 0.25);
}

.nav-btn.active {
  background: var(--color-sage);
  color: var(--color-ivory);
  border-color: var(--color-sage);
}

.audio-nav-btn {
  display: none; /* revealed once audio is initiated */
}

.audio-nav-btn.visible {
  display: inline-flex;
}

.sound-waves {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 12px;
}

.sound-bar {
  width: 2px;
  height: 100%;
  background-color: currentColor;
  border-radius: 1px;
  animation: soundBounce 1.2s ease-in-out infinite;
}

.sound-bar:nth-child(2) { animation-delay: 0.2s; height: 60%; }
.sound-bar:nth-child(3) { animation-delay: 0.4s; height: 80%; }
.sound-bar:nth-child(4) { animation-delay: 0.1s; height: 40%; }

.audio-nav-btn.muted .sound-bar {
  animation: none;
  height: 2px;
}

@keyframes soundBounce {
  0%, 100% { transform: scaleY(0.3); }
  50% { transform: scaleY(1); }
}

/* ==========================================================================
   Stage 1: Login Screen (#login-screen)
   ========================================================================== */
#login-screen {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.9s;
}

#login-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.login-background {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-image: url('../assets/wedding_session_1.jpg');
  background-position: center 25%;
  background-size: cover;
  background-repeat: no-repeat;
  filter: brightness(0.88) contrast(1.05);
}

.login-backdrop-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(20, 24, 18, 0.35) 0%, rgba(15, 18, 14, 0.75) 100%);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.login-card {
  position: relative;
  z-index: 2;
  width: 90%;
  max-width: 480px;
  padding: 3.5rem 2.75rem;
  background: rgba(253, 251, 247, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(200, 171, 102, 0.45);
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-deep), 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
  animation: loginCardFadeIn 1s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes loginCardFadeIn {
  from {
    opacity: 0;
    transform: translateY(25px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.login-tag {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  margin-bottom: 0.75rem;
}

.login-title {
  font-family: var(--font-script);
  font-size: 3.6rem;
  line-height: 1.1;
  color: var(--color-sage-deep);
  margin-bottom: 0.25rem;
  font-weight: 400;
}

.login-subtitle {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-charcoal);
  margin-bottom: 2.25rem;
  font-weight: 500;
  opacity: 0.85;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: relative;
}

.input-wrapper {
  position: relative;
  width: 100%;
}

.password-input {
  width: 100%;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(74, 93, 61, 0.3);
  border-radius: 6px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--color-charcoal);
  outline: none;
  transition: var(--transition-fast);
  text-align: center;
}

.password-input:focus {
  border-color: var(--color-gold);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(200, 171, 102, 0.2);
}

.password-input::placeholder {
  color: #9da39a;
  letter-spacing: 0.05em;
  font-style: italic;
  font-family: var(--font-serif);
  font-size: 1.05rem;
}

.login-btn {
  background: linear-gradient(135deg, var(--color-sage) 0%, var(--color-sage-deep) 100%);
  color: #ffffff;
  border: 1px solid rgba(200, 171, 102, 0.5);
  padding: 0.95rem 2rem;
  border-radius: 6px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 6px 20px rgba(42, 55, 37, 0.25);
}

.login-btn:hover {
  background: linear-gradient(135deg, var(--color-sage-light) 0%, var(--color-sage) 100%);
  transform: translateY(-1px);
  box-shadow: 0 8px 25px rgba(42, 55, 37, 0.35);
}

.login-error {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: #a83232;
  letter-spacing: 0.04em;
  min-height: 1.2rem;
  opacity: 0;
  transform: translateY(-4px);
  transition: var(--transition-fast);
}

.login-error.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Shake Animation for Incorrect Input */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-8px); }
  40%, 80% { transform: translateX(8px); }
}

.shake {
  animation: shake 0.45s ease-in-out;
}

/* ==========================================================================
   Stage 2: Interactive Envelope Experience (#envelope-screen)
   ========================================================================== */
#envelope-screen {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 800;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), visibility 1.2s;
  cursor: pointer;
}

#envelope-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.envelope-experience-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  user-select: none;
}

.envelope-header-title {
  font-family: var(--font-script);
  font-size: 4.5rem;
  line-height: 1.1;
  color: var(--color-sage-deep);
  margin-bottom: 2rem;
  font-weight: 400;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  text-align: center;
}

/* Envelope Container and 3D Assembly */
.envelope-assembly {
  position: relative;
  width: 680px;
  max-width: 90vw;
  aspect-ratio: 700 / 486;
  cursor: pointer;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.envelope-assembly:hover {
  transform: translateY(-4px) scale(1.025);
}

/* Base Closed Envelope Visual */
.envelope-art {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 20px 45px rgba(0, 0, 0, 0.16)) drop-shadow(0 4px 14px rgba(0, 0, 0, 0.08));
  pointer-events: none;
}

.wax-seal-hotspot {
  position: absolute;
  top: 58.1%;
  left: 50.4%;
  width: 15.7%;
  aspect-ratio: 1 / 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  cursor: pointer;
}

.wax-seal-glow {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 171, 102, 0.6) 0%, rgba(200, 171, 102, 0) 70%);
  animation: sealPulse 2.4s ease-in-out infinite;
}

@keyframes sealPulse {
  0%, 100% { transform: scale(0.95); opacity: 0.4; }
  50% { transform: scale(1.25); opacity: 0.9; }
}

.envelope-hint-wrapper {
  margin-top: 2.25rem;
  text-align: center;
}

.envelope-hint-text {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-style: italic;
  color: var(--color-charcoal);
  letter-spacing: 0.05em;
  animation: hintBreathe 2.8s ease-in-out infinite;
}

@keyframes hintBreathe {
  0%, 100% { opacity: 0.7; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(-3px); }
}

/* ==========================================================================
   Stage 3: Full Tableau Experience (#tableau-screen)
   Recreating reserven el dia.jpeg
   ========================================================================== */
#tableau-screen {
  min-height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 5rem 1.5rem 3rem;
  position: relative;
  opacity: 0;
  transition: opacity 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}

#tableau-screen.hidden {
  display: none !important;
}

#tableau-screen.visible {
  opacity: 1;
}

.tableau-container {
  position: relative;
  width: 100%;
  max-width: 1366px;
  min-height: 820px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Center Envelope & Primary Invitation */
.center-arrangement {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 10;
}

/* Opened Envelope with Celeste Card nestled inside */
.open-envelope-pocket {
  position: relative;
  width: 440px;
  max-width: 90vw;
  filter: drop-shadow(var(--shadow-medium));
  user-select: none;
}

.open-envelope-img {
  width: 100%;
  height: auto;
  display: block;
}

/* Central Primary Invitation Card (3.jpeg) */
.invitation-card-wrapper {
  position: relative;
  margin-top: -140px;
  width: 320px;
  max-width: 85vw;
  z-index: 20;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
  cursor: pointer;
}

.invitation-card-wrapper:hover {
  transform: translateY(-8px) scale(1.02);
}

.invitation-card-img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  box-shadow: var(--shadow-card);
  display: block;
  transition: opacity 0.22s ease-in-out;
}

.card-inspect-badge {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(6px);
  padding: 0.35rem 0.65rem;
  border-radius: 20px;
  border: 1px solid rgba(200, 171, 102, 0.4);
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-sage-deep);
  opacity: 0;
  transform: translateY(4px);
  transition: var(--transition-fast);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.invitation-card-wrapper:hover .card-inspect-badge {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Left Arrangement: Interactive Vinyl Record
   ========================================================================== */
.vinyl-arrangement {
  position: absolute;
  left: 5%;
  top: 48%;
  transform: translateY(-50%);
  z-index: 15;
  display: flex;
  flex-direction: column;
  align-items: center;
  user-select: none;
}

.vinyl-disc {
  position: relative;
  width: 290px;
  height: 290px;
  border-radius: 50%;
  cursor: pointer;
  background: #111111;
  box-shadow: 
    0 18px 45px rgba(0, 0, 0, 0.4),
    0 4px 15px rgba(0, 0, 0, 0.25);
  transition: transform 0.3s ease;
  overflow: hidden;
}

.vinyl-disc:hover {
  transform: scale(1.03);
}

.spinning-group {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  animation: spinVinyl 3.6s linear infinite;
  transform-origin: 50% 50%;
}

.spinning-group.paused {
  animation-play-state: paused;
}

/* Photorealistic Vinyl Grooves via Gradients */
.vinyl-grooves {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: 
    radial-gradient(circle at 50% 50%, rgba(20, 20, 20, 1) 0%, rgba(10, 10, 10, 1) 100%),
    repeating-radial-gradient(
      circle at 50% 50%,
      rgba(255, 255, 255, 0.08) 0px,
      rgba(0, 0, 0, 0.8) 1px,
      rgba(255, 255, 255, 0.05) 2px,
      rgba(15, 15, 15, 0.95) 3px
    );
  pointer-events: none;
}

/* Dynamic Vinyl Light Sheen (Anisotropic Glare) */
.vinyl-sheen {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(
    from 35deg at 50% 50%,
    rgba(255, 255, 255, 0.2) 0deg,
    rgba(255, 255, 255, 0.03) 40deg,
    rgba(0, 0, 0, 0.4) 90deg,
    rgba(255, 255, 255, 0.18) 180deg,
    rgba(255, 255, 255, 0.03) 220deg,
    rgba(0, 0, 0, 0.4) 270deg,
    rgba(255, 255, 255, 0.2) 360deg
  );
  mix-blend-mode: screen;
  pointer-events: none;
}

/* Vinyl Rotation Keyframe */
@keyframes spinVinyl {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Center Label on Vinyl — Hard-centered with negative margins */
.vinyl-label {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 116px;
  height: 116px;
  margin-top: -58px;
  margin-left: -58px;
  border-radius: 50%;
  background: #dcc8a4;
  box-shadow: 
    0 0 0 2px #222 inset,
    0 0 0 4px rgba(255, 255, 255, 0.2) inset,
    0 3px 12px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.vinyl-curved-text {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.vinyl-curved-text text {
  font-family: var(--font-serif);
  font-size: 13px;
  font-style: italic;
  letter-spacing: 0.12em;
  fill: #222222;
  font-weight: 500;
}

/* Center Play / Pause Icon */
.vinyl-play-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #252525;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  transition: transform 0.25s ease, background-color 0.25s;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.vinyl-disc:hover .vinyl-play-icon {
  transform: scale(1.1);
  background: #000000;
}

.vinyl-play-icon svg {
  fill: #faf8f5;
  width: 15px;
  height: 15px;
}

.vinyl-play-icon .pause-bars {
  display: none;
}

.vinyl-disc.playing .vinyl-play-icon .play-triangle {
  display: none;
}

.vinyl-disc.playing .vinyl-play-icon .pause-bars {
  display: block;
}

.vinyl-track-info {
  margin-top: 1.25rem;
  text-align: center;
}

.track-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--color-sage-deep);
}

.track-artist {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
}

/* ==========================================================================
   Right Arrangement: Diagonal Photobooth Strip, Signature & Calendar Button
   ========================================================================== */
.right-arrangement {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 15;
  display: flex;
  flex-direction: column;
  align-items: center;
  user-select: none;
}

.photostrip-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0.5rem;
}

.photostrip-diagonal-img {
  width: 140px;
  height: auto;
  border-radius: 4px;
  box-shadow: 
    0 16px 36px rgba(0, 0, 0, 0.18),
    0 4px 12px rgba(0, 0, 0, 0.1);
  transform: rotate(5.5deg);
  pointer-events: none;
  user-select: none;
  display: block;
}

.right-signoff-block {
  margin-top: 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.signoff-intro {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-charcoal);
  letter-spacing: 0.05em;
}

.signoff-names {
  font-family: var(--font-script);
  font-size: 3.25rem;
  line-height: 1.05;
  color: var(--color-sage-deep);
  font-weight: 400;
  margin-bottom: 1.15rem;
}

.calendar-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(200, 171, 102, 0.5);
  padding: 0.65rem 1.4rem;
  border-radius: 30px;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-sage-deep);
  text-decoration: none;
  cursor: pointer;
  outline: none;
  transition: var(--transition-fast);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.calendar-action-btn:hover {
  background: var(--color-sage);
  color: #ffffff;
  border-color: var(--color-sage);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(42, 55, 37, 0.2);
}

.calendar-action-btn svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
}

/* ==========================================================================
   Modals & Lightboxes (Details & Photobooth)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(18, 22, 16, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-fast);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--color-ivory);
  border: 1px solid rgba(200, 171, 102, 0.4);
  border-radius: 12px;
  max-width: 550px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  box-shadow: var(--shadow-deep);
  transform: scale(0.95);
  transition: var(--transition-fast);
  text-align: center;
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-muted);
  cursor: pointer;
  line-height: 1;
  padding: 0.5rem;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--color-charcoal);
  transform: scale(1.1);
}

.modal-script-title {
  font-family: var(--font-script);
  font-size: 3rem;
  color: var(--color-sage-deep);
  margin-bottom: 0.5rem;
}

.modal-date-heading {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  letter-spacing: 0.15em;
  color: var(--color-gold-dark);
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.modal-venue-info {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--color-charcoal);
  margin-bottom: 2rem;
}


/* ==========================================================================
   Responsive Adaptations & Fluid Reflow
   ========================================================================== */
@media (max-width: 1100px) {
  .tableau-container {
    min-height: 950px;
  }
  .vinyl-arrangement {
    left: 2%;
  }
  .right-arrangement {
    right: 2%;
  }
}

@media (max-width: 860px) {
  .tableau-container {
    display: flex;
    flex-direction: column;
    min-height: auto;
    gap: 3.5rem;
    padding: 1rem 0 3rem;
  }

  .vinyl-arrangement,
  .center-arrangement,
  .right-arrangement {
    position: static;
    transform: none;
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
  }

  /* Specific mobile stacking hierarchy:
     1. Top: Center Invitation Card & Open Envelope
     2. Second: Left Vinyl Record Player
     3. Last: Right Photostrip, Signoff & Calendar Button */
  .center-arrangement {
    order: 1;
  }

  .vinyl-arrangement {
    order: 2;
    margin-top: 0;
  }

  .right-arrangement {
    order: 3;
  }

  .photostrip-wrapper {
    display: flex;
    justify-content: center;
    padding: 1rem 0;
  }

  .photostrip-diagonal-img {
    width: 130px;
  }

  .invitation-card-wrapper {
    margin-top: -80px;
    width: 280px;
  }

  .open-envelope-pocket {
    width: 340px;
  }

  .vinyl-disc {
    width: 240px;
    height: 240px;
  }

  .login-title,
  .envelope-header-title {
    font-size: 3rem;
  }

  .signoff-names {
    font-size: 2.75rem;
  }

  .global-nav {
    padding: 1rem;
  }
}