/* ====================================================================
   18TH LEGAL ADULT — GOLDEN KEY TO THE WORLD
   Theme: Midnight Royal Navy (#080d1a) & Sovereign Gold (#eab308)
   Typography: Playfair Display (Serif) + Plus Jakarta Sans (Sans-serif)
   ==================================================================== */

:root {
  --bg-dark: #080d1a;
  --bg-card: rgba(13, 22, 43, 0.75);
  --bg-card-hover: rgba(19, 32, 62, 0.85);
  --gold-primary: #eab308;
  --gold-secondary: #facc15;
  --gold-glow: rgba(234, 179, 8, 0.35);
  --azure-accent: #38bdf8;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-gold: rgba(234, 179, 8, 0.25);
  --border-card: rgba(56, 189, 248, 0.15);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-gold: 0 10px 35px -5px rgba(234, 179, 8, 0.25);
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

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

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

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* Ambient Canvas & Orbs */
#particles-canvas, #confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 50;
}

#confetti-canvas {
  z-index: 9999;
}

.ambient-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.28;
  animation: floatOrb 18s ease-in-out infinite alternate;
}

.orb-1 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, var(--gold-primary), transparent 70%);
  top: -100px;
  left: -80px;
}

.orb-2 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, var(--azure-accent), transparent 70%);
  bottom: 5%;
  right: -120px;
  animation-duration: 22s;
}

.orb-3 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, #6366f1, transparent 70%);
  top: 45%;
  left: 40%;
  animation-duration: 16s;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, 30px) scale(1.08); }
  100% { transform: translate(-30px, -20px) scale(0.95); }
}

/* 0. PASSCODE GATE SCREEN */
.passcode-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 15, 0.96);
  backdrop-filter: blur(20px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.passcode-overlay.unlocked {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.passcode-card {
  background: rgba(11, 20, 40, 0.85);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 380px;
  text-align: center;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), var(--shadow-gold);
  animation: scaleIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.passcode-icon {
  font-size: 3rem;
  margin-bottom: 0.75rem;
  display: inline-block;
  animation: pulseGlow 2.5s infinite;
}

.passcode-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--gold-primary);
  margin-bottom: 0.4rem;
}

.passcode-sub {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.passcode-prompt {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--azure-accent);
  margin-bottom: 1rem;
}

.passcode-dots-wrapper {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-bottom: 1.75rem;
}

.passcode-dot-box {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--border-gold);
  background: rgba(255, 255, 255, 0.05);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.passcode-dot-box.filled {
  background: var(--gold-primary);
  border-color: var(--gold-secondary);
  box-shadow: 0 0 15px var(--gold-primary);
  transform: scale(1.15);
}

.passcode-keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.keypad-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1.35rem;
  font-weight: 600;
  padding: 0.85rem 0;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.keypad-btn:hover {
  background: rgba(234, 179, 8, 0.15);
  border-color: var(--border-gold);
  transform: translateY(-2px);
}

.keypad-btn:active {
  transform: scale(0.95);
}

.keypad-btn.action-btn {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.passcode-error-msg {
  color: #f87171;
  font-size: 0.85rem;
  margin-top: 1rem;
  min-height: 1.2rem;
}

.shake {
  animation: shakeKeypad 0.4s ease;
}

@keyframes shakeKeypad {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-8px); }
  40%, 80% { transform: translateX(8px); }
}

/* 1. 3D UNBOXING OVERLAY */
.unboxing-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 15, 0.95);
  backdrop-filter: blur(18px);
  z-index: 9000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  text-align: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.unboxing-overlay.opened {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.unboxing-badge {
  background: rgba(234, 179, 8, 0.12);
  border: 1px solid var(--border-gold);
  color: var(--gold-secondary);
  padding: 0.4rem 1.25rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.vault-box-container {
  width: 170px;
  height: 170px;
  position: relative;
  cursor: pointer;
  perspective: 1000px;
  margin-bottom: 2rem;
  transition: transform 0.3s ease;
}

.vault-box-container:hover {
  transform: scale(1.05) rotate(2deg);
}

.vault-box {
  width: 100%;
  height: 100%;
  position: relative;
}

.vault-body {
  width: 100%;
  height: 120px;
  position: absolute;
  bottom: 0;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  border: 2px solid var(--gold-primary);
  border-radius: var(--radius-md);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6), 0 0 30px var(--gold-glow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.vault-keyhole {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: radial-gradient(circle, #eab308, #b45309);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 0 20px var(--gold-primary);
}

.vault-lid {
  width: 106%;
  height: 45px;
  position: absolute;
  top: 15px;
  left: -3%;
  background: linear-gradient(135deg, #334155, #1e293b);
  border: 2px solid var(--gold-primary);
  border-radius: var(--radius-sm);
  transform-origin: top;
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.vault-box-container.opening .vault-lid {
  transform: translateY(-50px) rotateX(-45deg);
}

.unboxing-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.unboxing-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 480px;
  margin-bottom: 2rem;
}

.btn-open-vault {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-secondary));
  color: #0b0f19;
  border: none;
  font-size: 1.1rem;
  font-weight: 700;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  cursor: pointer;
  box-shadow: var(--shadow-gold);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  transition: all 0.25s ease;
}

.btn-open-vault:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 40px rgba(234, 179, 8, 0.45);
}

/* Floating Navigation Pills */
.floating-nav {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 1000;
  display: flex;
  gap: 0.75rem;
}

.nav-pill-btn {
  background: rgba(13, 22, 43, 0.85);
  border: 1px solid var(--border-gold);
  color: var(--text-primary);
  padding: 0.6rem 1.1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
}

.nav-pill-btn:hover {
  background: rgba(234, 179, 8, 0.2);
  border-color: var(--gold-secondary);
  transform: translateY(-2px);
}

.music-bars {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 14px;
}

.music-bar {
  width: 3px;
  height: 4px;
  background: var(--gold-primary);
  border-radius: 2px;
  transition: height 0.2s ease;
}

.nav-pill-btn.playing .music-bar:nth-child(1) { animation: barBounce 0.8s infinite alternate ease-in-out; }
.nav-pill-btn.playing .music-bar:nth-child(2) { animation: barBounce 0.6s infinite alternate ease-in-out 0.2s; }
.nav-pill-btn.playing .music-bar:nth-child(3) { animation: barBounce 0.9s infinite alternate ease-in-out 0.4s; }

@keyframes barBounce {
  0% { height: 4px; }
  100% { height: 14px; }
}

/* Site Wrapper & Layout */
.site-wrapper {
  position: relative;
  z-index: 10;
  width: 100%;
}

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Hero Section */
.hero-section {
  padding: 8rem 0 5rem;
  text-align: center;
  position: relative;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(234, 179, 8, 0.1);
  border: 1px solid var(--border-gold);
  color: var(--gold-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 0.45rem 1.4rem;
  border-radius: 50px;
  margin-bottom: 1.75rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.8rem;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  color: #ffffff;
}

.title-glow {
  background: linear-gradient(135deg, #fef08a, var(--gold-primary), var(--azure-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  text-shadow: 0 0 40px var(--gold-glow);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 2.5rem;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.85rem 1.85rem;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.25s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-secondary));
  color: #0b0f19;
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(234, 179, 8, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-gold);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(234, 179, 8, 0.15);
  transform: translateY(-3px);
}

/* Sections Common */
.section {
  padding: 4.5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-eyebrow {
  display: block;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--azure-accent);
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: #ffffff;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-top: 0.5rem;
}

/* Letter Section */
.letter-card-wrapper {
  max-width: 780px;
  margin: 0 auto;
}

.letter-paper {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 3rem 2.75rem;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), inset 0 0 80px rgba(234, 179, 8, 0.03);
  backdrop-filter: blur(12px);
}

.letter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-gold);
  padding-bottom: 1.25rem;
  margin-bottom: 2rem;
}

.letter-date {
  font-size: 0.9rem;
  color: var(--azure-accent);
  letter-spacing: 1px;
}

.letter-stamp {
  font-size: 0.75rem;
  color: var(--gold-secondary);
  border: 1px dashed var(--gold-primary);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  letter-spacing: 1.5px;
  font-weight: 700;
}

.letter-salutation {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  color: var(--gold-secondary);
  margin-bottom: 1.5rem;
}

.letter-body p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.85;
  margin-bottom: 1.25rem;
}

.letter-postscript {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.1);
  font-style: italic;
  color: var(--gold-secondary);
  font-size: 1.05rem;
}

.letter-footer {
  margin-top: 2.5rem;
  text-align: right;
}

.letter-signoff {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.letter-signature {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--gold-primary);
  margin-top: 0.35rem;
}

/* 18th Birthday Cake Section */
.cake-section {
  text-align: center;
}

.cake-stage {
  margin: 2.5rem auto 2rem;
  display: flex;
  justify-content: center;
}

.cake-wrapper {
  position: relative;
  width: 220px;
  cursor: pointer;
}

.candles-row {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: -5px;
  position: relative;
  z-index: 5;
}

.candle {
  width: 8px;
  height: 38px;
  background: linear-gradient(to bottom, #fde047, #ca8a04);
  border-radius: 4px 4px 0 0;
  position: relative;
}

.flame {
  width: 14px;
  height: 22px;
  background: radial-gradient(circle at bottom, #fff, #f97316 60%, transparent 90%);
  border-radius: 50% 50% 20% 20%;
  position: absolute;
  top: -20px;
  left: -3px;
  box-shadow: 0 0 15px #f97316;
  animation: flicker 0.8s infinite alternate;
  transition: opacity 0.4s ease;
}

.smoke {
  position: absolute;
  top: -25px;
  left: 2px;
  width: 4px;
  height: 4px;
  background: #94a3b8;
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
}

.candle.blown .flame {
  opacity: 0;
}

.candle.blown .smoke {
  animation: smokeRise 1.2s forwards;
}

@keyframes flicker {
  0% { transform: scale(1) rotate(-2deg); }
  100% { transform: scale(1.15) rotate(3deg); }
}

@keyframes smokeRise {
  0% { opacity: 0.8; transform: translateY(0) scale(1); }
  100% { opacity: 0; transform: translateY(-30px) scale(3); }
}

.cake-tier {
  margin: 0 auto;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #1e293b, #0f172a);
  border: 2px solid var(--gold-primary);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  position: relative;
}

.tier-top {
  width: 140px;
  height: 45px;
  border-bottom: none;
}

.tier-bottom {
  width: 200px;
  height: 60px;
}

.cake-plate {
  width: 240px;
  height: 14px;
  background: linear-gradient(to bottom, var(--gold-secondary), #854d0e);
  border-radius: 50px;
  margin: -4px auto 0;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7);
}

.btn-blow-candles {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-secondary));
  color: #0b0f19;
  border: none;
  font-size: 1.05rem;
  font-weight: 700;
  padding: 0.85rem 2.2rem;
  border-radius: 50px;
  cursor: pointer;
  margin-top: 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-gold);
}

.btn-blow-candles:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(234, 179, 8, 0.4);
}

.cake-wish-banner {
  max-width: 600px;
  margin: 1.5rem auto 0;
  background: rgba(234, 179, 8, 0.12);
  border: 1px solid var(--border-gold);
  color: var(--gold-secondary);
  padding: 1rem 1.75rem;
  border-radius: var(--radius-md);
  font-size: 1.1rem;
  font-weight: 600;
  display: none;
  animation: fadeIn 0.5s ease;
}

.cake-wish-banner.active {
  display: block;
}

/* Memories & Milestones Grid */
.memories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.memory-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.memory-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-gold);
  transform: translateY(-5px);
  box-shadow: var(--shadow-gold);
}

.memory-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--azure-accent);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.memory-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.memory-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Quotes Grid */
.quotes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.75rem;
}

.quote-card {
  background: var(--bg-card);
  border-left: 4px solid var(--gold-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 2rem;
  position: relative;
}

.quote-icon {
  font-family: var(--font-heading);
  font-size: 3rem;
  line-height: 1;
  color: var(--gold-primary);
  opacity: 0.4;
  margin-bottom: 0.5rem;
}

.quote-text {
  font-size: 1.1rem;
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.quote-author {
  color: var(--azure-accent);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 1px;
}

/* Reply CTA Section */
.cta-section {
  padding: 5rem 0;
}

.cta-box {
  background: linear-gradient(135deg, rgba(14, 22, 42, 0.95), rgba(8, 13, 26, 0.95));
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-gold);
}

.cta-box h2 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.cta-box p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 550px;
  margin: 0 auto 2.25rem;
}

.reply-buttons-wrapper {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.btn-whatsapp {
  background: #25d366;
  color: #ffffff;
  padding: 0.9rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: all 0.25s ease;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.5);
}

.btn-instagram {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  color: #ffffff;
  padding: 0.9rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: all 0.25s ease;
  box-shadow: 0 8px 25px rgba(220, 39, 67, 0.35);
}

.btn-instagram:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(220, 39, 67, 0.5);
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 2.5rem 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.site-footer .love-icon {
  color: #f43f5e;
}

/* Animations */
@keyframes scaleIn {
  0% { transform: scale(0.9); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes fadeIn {
  0% { opacity: 0; transform: translateY(8px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes pulseGlow {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 8px rgba(234, 179, 8, 0.4)); }
  50% { transform: scale(1.08); filter: drop-shadow(0 0 20px rgba(234, 179, 8, 0.8)); }
}

/* Responsive Media Queries */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.8rem;
  }
  .section-title {
    font-size: 2rem;
  }
  .letter-paper {
    padding: 2rem 1.5rem;
  }
  .passcode-card {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-subtitle {
    font-size: 1rem;
  }
  .unboxing-title {
    font-size: 1.75rem;
  }
  .btn-primary, .btn-secondary, .btn-whatsapp, .btn-instagram {
    width: 100%;
    justify-content: center;
  }
  .floating-nav {
    top: 0.75rem;
    right: 0.75rem;
  }
}