/* ============================================
   OUR YEAR WRAPPED - STYLES
   A Spotify Wrapped-Style Love Story
   ============================================ */

/* CSS Variables */
:root {
    --primary-pink: #FF6B9D;
    --primary-purple: #C44FE2;
    --primary-coral: #FF7B54;
    --primary-teal: #4ECDC4;
    --primary-gold: #FFD93D;
    --christmas-red: #D72638;
    --christmas-green: #1DB954;
    --deep-purple: #1a0a2e;
    --midnight: #0D1B2A;
    
    --font-display: 'Playfair Display', serif;
    --font-body: 'Outfit', sans-serif;
    
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --transition-elastic: cubic-bezier(0.68, -0.6, 0.32, 1.6);
}

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

html, body {
    height: 100%;
    overflow: hidden;
    font-family: var(--font-body);
    background: #000;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    max-width: 100vw;
    touch-action: pan-y;
    user-select: none;
    -webkit-user-select: none;
}

/* ============================================
   PRELOADER
   ============================================ */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--deep-purple), #2d1b4e);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader-content {
    text-align: center;
}

.heart-loader {
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
    position: relative;
}

.heart {
    width: 100%;
    height: 100%;
    background: var(--primary-pink);
    position: relative;
    transform: rotate(-45deg);
    animation: heartbeat 1.2s ease-in-out infinite;
}

.heart::before,
.heart::after {
    content: '';
    width: 100%;
    height: 100%;
    background: var(--primary-pink);
    border-radius: 50%;
    position: absolute;
}

.heart::before {
    top: -50%;
    left: 0;
}

.heart::after {
    left: 50%;
    top: 0;
}

@keyframes heartbeat {
    0%, 100% { transform: rotate(-45deg) scale(1); }
    50% { transform: rotate(-45deg) scale(1.15); }
}

.preloader-text {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
    letter-spacing: 2px;
    animation: pulse 1.5s ease-in-out infinite;
}

/* ============================================
   MAIN CONTAINER
   ============================================ */
.container {
    width: 100%;
    height: 100vh;
    height: 100dvh;
    position: relative;
    overflow: hidden;
    max-width: 480px;
    margin: 0 auto;
}

/* Progress Bar */
.progress-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    z-index: 100;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-pink), var(--primary-purple), var(--primary-coral));
    background-size: 200% 100%;
    animation: gradientShift 3s ease infinite;
    width: 0%;
    transition: width 0.3s var(--transition-smooth);
}

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

/* Navigation Zones */
.nav-zone {
    position: absolute;
    top: 0;
    height: 100%;
    width: 30%;
    z-index: 50;
    cursor: pointer;
}

.nav-prev {
    left: 0;
}

.nav-next {
    right: 0;
}

/* ============================================
   SLIDES
   ============================================ */
.slides-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s var(--transition-smooth), 
                visibility 0.6s var(--transition-smooth),
                transform 0.6s var(--transition-smooth);
    transform: scale(0.95);
}

.slide.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.slide.exit-left {
    transform: translateX(-100%) scale(0.9);
    opacity: 0;
}

.slide.exit-right {
    transform: translateX(100%) scale(0.9);
    opacity: 0;
}

/* Slide Backgrounds */
.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.gradient-warm {
    background: linear-gradient(135deg, #1a0a2e 0%, #3d1a54 30%, #8B2F5F 60%, #D72638 100%);
}

.gradient-purple {
    background: linear-gradient(180deg, #1a0a2e 0%, #4a1f6e 50%, #7b2d8e 100%);
}

.gradient-rose {
    background: linear-gradient(135deg, #2d1b4e 0%, #8B2F5F 50%, #FF6B9D 100%);
}

.gradient-teal {
    background: linear-gradient(180deg, #0D1B2A 0%, #1B4D5C 50%, #4ECDC4 100%);
}

.gradient-coral {
    background: linear-gradient(135deg, #1a0a2e 0%, #6B2D5C 50%, #FF7B54 100%);
}

.gradient-midnight {
    background: linear-gradient(180deg, #0D1B2A 0%, #1B2838 50%, #2C3E50 100%);
}

.gradient-sunset {
    background: linear-gradient(135deg, #2d1b4e 0%, #B33771 40%, #FF7B54 80%, #FFD93D 100%);
}

.gradient-aurora {
    background: linear-gradient(180deg, #0D1B2A 0%, #1a4d5c 30%, #4ECDC4 60%, #a8e6cf 100%);
}

.gradient-berry {
    background: linear-gradient(135deg, #1a0a2e 0%, #6B2D5C 40%, #C44FE2 100%);
}

.gradient-christmas {
    background: linear-gradient(180deg, #0D1B2A 0%, #1B4332 40%, #D72638 80%, #8B0000 100%);
}

.gradient-magic {
    background: linear-gradient(180deg, #1a0a2e 0%, #3d1a54 30%, #8B2F5F 60%, #FF6B9D 100%);
    background-size: 100% 200%;
    animation: gradientFlow 8s ease infinite;
}

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

/* Slide Content */
.slide-content {
    width: 100%;
    height: 100%;
    padding: 60px 30px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    z-index: 10;
}

/* ============================================
   INTRO SLIDE
   ============================================ */
.intro-year {
    font-family: var(--font-display);
    font-size: 6rem;
    font-weight: 700;
    color: var(--primary-pink);
    text-shadow: 0 0 60px rgba(255, 107, 157, 0.5);
    margin-bottom: 10px;
}

.intro-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: #fff;
    line-height: 1.1;
    margin-bottom: 20px;
}

.intro-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 60px;
}

.tap-hint {
    position: absolute;
    bottom: 80px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.tap-icon {
    font-size: 1.5rem;
}

/* ============================================
   MESSAGE SLIDE
   ============================================ */
.message-emoji {
    font-size: 4rem;
    margin-bottom: 30px;
}

.message-text {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: #fff;
    line-height: 1.4;
    margin-bottom: 20px;
}

.message-sub {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   PHOTO SLIDES
   ============================================ */
.photo-frame {
    width: 85%;
    max-width: 320px;
    aspect-ratio: 3/4;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
}

.memory-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.6) 100%);
}

.photo-caption {
    margin-top: 30px;
    text-align: center;
}

.caption-label {
    display: block;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.caption-text {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: #fff;
    font-style: italic;
}

/* Polaroid Style */
.polaroid-frame {
    background: #fff;
    padding: 15px 15px 50px;
    border-radius: 4px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.4);
    transform: rotate(-3deg);
}

.polaroid-frame .memory-photo {
    width: 260px;
    height: 260px;
    object-fit: cover;
}

.polaroid-caption {
    position: absolute;
    bottom: 15px;
    left: 0;
    width: 100%;
    text-align: center;
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: #333;
    font-style: italic;
}

/* Circle Frame */
.circle-frame {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    overflow: hidden;
    border: 8px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.4);
}

.highlight {
    color: var(--primary-pink);
    font-weight: 700;
}

/* Photo Collage */
.photo-collage {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    width: 90%;
    max-width: 340px;
}

.collage-item {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.collage-item:first-child {
    grid-column: span 2;
    aspect-ratio: 16/9;
}

.collage-item:nth-child(2),
.collage-item:nth-child(3) {
    aspect-ratio: 1;
}

.collage-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.collage-caption {
    margin-top: 30px;
    font-size: 1.2rem;
    color: #fff;
}

/* ============================================
   VIDEO SLIDE
   ============================================ */
.video-frame {
    width: 85%;
    max-width: 320px;
    aspect-ratio: 9/16;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
}

.memory-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #333;
    cursor: pointer;
    transition: transform 0.3s var(--transition-bounce);
}

.video-play-btn:active {
    transform: translate(-50%, -50%) scale(0.9);
}

.video-play-btn.hidden {
    opacity: 0;
    pointer-events: none;
}

.video-caption {
    margin-top: 25px;
    font-size: 1.2rem;
    color: #fff;
}

/* ============================================
   STATS SLIDE
   ============================================ */
.stats-title {
    font-family: var(--font-display);
    font-size: 2.2rem;
    color: #fff;
    margin-bottom: 50px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    width: 100%;
    max-width: 320px;
}

.stat-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 25px 15px;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--primary-gold);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   QUOTE SLIDE
   ============================================ */
.quote-mark {
    font-family: var(--font-display);
    font-size: 8rem;
    color: var(--primary-teal);
    opacity: 0.5;
    line-height: 0.5;
    margin-bottom: 20px;
}

.love-quote {
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: #fff;
    line-height: 1.5;
    font-style: italic;
    max-width: 320px;
}

.quote-author {
    margin-top: 30px;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   CHRISTMAS SLIDE
   ============================================ */
.christmas-tree {
    font-size: 6rem;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 30px rgba(29, 185, 84, 0.5));
}

.christmas-title {
    font-family: var(--font-display);
    font-size: 2.8rem;
    color: #fff;
    margin-bottom: 15px;
}

.christmas-text {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
}

.gift-box {
    font-size: 4rem;
}

/* ============================================
   FINALE / MUSIC PLAYER SLIDE
   ============================================ */
.vinyl-container {
    margin-bottom: 30px;
}

.vinyl-record {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #1a1a1a 0%, #333 50%, #1a1a1a 100%);
    border-radius: 50%;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.vinyl-record::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border-radius: 50%;
    background: repeating-radial-gradient(
        circle at center,
        transparent 0px,
        transparent 2px,
        rgba(255, 255, 255, 0.03) 2px,
        rgba(255, 255, 255, 0.03) 4px
    );
}

.vinyl-record.spinning {
    animation: spin 3s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.vinyl-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--primary-pink);
}

.album-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.song-info {
    text-align: center;
    margin-bottom: 30px;
}

.song-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    color: #fff;
    margin-bottom: 8px;
}

.song-artist {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
}

.music-player {
    width: 100%;
    max-width: 300px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 25px;
    padding: 25px;
}

.player-controls {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.play-btn {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, var(--primary-pink), var(--primary-purple));
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s var(--transition-bounce);
    box-shadow: 0 10px 30px rgba(255, 107, 157, 0.4);
}

.play-btn:active {
    transform: scale(0.9);
}

.play-btn .pause-icon {
    display: none;
}

.play-btn.playing .play-icon {
    display: none;
}

.play-btn.playing .pause-icon {
    display: block;
}

.progress-track {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-pink), var(--primary-purple));
    border-radius: 3px;
    width: 0%;
    transition: width 0.1s linear;
}

.time-display {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

.finale-message {
    margin-top: 30px;
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
}

.final-hearts {
    position: absolute;
    bottom: 40px;
    display: flex;
    gap: 20px;
}

.heart-float {
    font-size: 2rem;
    animation: floatHeart 3s ease-in-out infinite;
}

.heart-float:nth-child(2) {
    animation-delay: 0.5s;
}

.heart-float:nth-child(3) {
    animation-delay: 1s;
}

@keyframes floatHeart {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.1); }
}

/* ============================================
   ANIMATIONS
   ============================================ */

/* Pop Animation */
.animate-pop {
    opacity: 0;
    transform: scale(0);
}

.slide.active .animate-pop {
    animation: popIn 0.6s var(--transition-elastic) forwards;
    animation-delay: var(--delay, 0.2s);
}

@keyframes popIn {
    0% { opacity: 0; transform: scale(0); }
    100% { opacity: 1; transform: scale(1); }
}

/* Slide Up Animation */
.animate-slide-up {
    opacity: 0;
    transform: translateY(50px);
}

.slide.active .animate-slide-up {
    animation: slideUp 0.8s var(--transition-smooth) forwards;
    animation-delay: var(--delay, 0.3s);
}

@keyframes slideUp {
    0% { opacity: 0; transform: translateY(50px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Slide Down Animation */
.animate-slide-down {
    opacity: 0;
    transform: translateY(-50px);
}

.slide.active .animate-slide-down {
    animation: slideDown 0.8s var(--transition-smooth) forwards;
    animation-delay: var(--delay, 0.2s);
}

@keyframes slideDown {
    0% { opacity: 0; transform: translateY(-50px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Fade In Animation */
.animate-fade-in {
    opacity: 0;
}

.slide.active .animate-fade-in {
    animation: fadeIn 1s var(--transition-smooth) forwards;
    animation-delay: var(--delay, 0.4s);
}

@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

/* Scale In Animation */
.animate-scale-in {
    opacity: 0;
    transform: scale(0.8);
}

.slide.active .animate-scale-in {
    animation: scaleIn 0.8s var(--transition-smooth) forwards;
    animation-delay: var(--delay, 0.2s);
}

@keyframes scaleIn {
    0% { opacity: 0; transform: scale(0.8); }
    100% { opacity: 1; transform: scale(1); }
}

/* Tilt In Animation */
.animate-tilt-in {
    opacity: 0;
    transform: rotate(-15deg) scale(0.8);
}

.slide.active .animate-tilt-in {
    animation: tiltIn 0.8s var(--transition-elastic) forwards;
    animation-delay: 0.2s;
}

@keyframes tiltIn {
    0% { opacity: 0; transform: rotate(-15deg) scale(0.8); }
    100% { opacity: 1; transform: rotate(-3deg) scale(1); }
}

/* Spin In Animation */
.animate-spin-in {
    opacity: 0;
    transform: rotate(-180deg) scale(0);
}

.slide.active .animate-spin-in {
    animation: spinIn 1s var(--transition-elastic) forwards;
    animation-delay: 0.2s;
}

@keyframes spinIn {
    0% { opacity: 0; transform: rotate(-180deg) scale(0); }
    100% { opacity: 1; transform: rotate(0deg) scale(1); }
}

/* Bounce Animation */
.animate-bounce {
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Word by Word Animation */
.animate-words {
    opacity: 0;
}

.slide.active .animate-words {
    animation: fadeIn 0.5s var(--transition-smooth) forwards;
    animation-delay: 0.3s;
}

/* Pulse Animation */
.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* ============================================
   DECORATIVE ELEMENTS
   ============================================ */

/* Floating Hearts */
.floating-hearts {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.floating-hearts::before,
.floating-hearts::after {
    content: '💕';
    position: absolute;
    font-size: 2rem;
    opacity: 0.3;
    animation: floatAround 15s linear infinite;
}

.floating-hearts::before {
    left: 10%;
    animation-delay: 0s;
}

.floating-hearts::after {
    content: '💗';
    right: 10%;
    animation-delay: 7s;
}

@keyframes floatAround {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.3; }
    90% { opacity: 0.3; }
    100% { transform: translateY(-100px) rotate(360deg); opacity: 0; }
}

/* Sparkles */
.sparkles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, rgba(255, 255, 255, 0.8), transparent),
        radial-gradient(2px 2px at 40% 70%, rgba(255, 255, 255, 0.6), transparent),
        radial-gradient(2px 2px at 60% 20%, rgba(255, 255, 255, 0.7), transparent),
        radial-gradient(2px 2px at 80% 50%, rgba(255, 255, 255, 0.5), transparent),
        radial-gradient(2px 2px at 10% 80%, rgba(255, 255, 255, 0.6), transparent),
        radial-gradient(2px 2px at 90% 90%, rgba(255, 255, 255, 0.4), transparent);
    animation: sparkle 4s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* Stars Background */
.stars-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background-image: 
        radial-gradient(1px 1px at 10% 10%, white, transparent),
        radial-gradient(1px 1px at 20% 30%, white, transparent),
        radial-gradient(2px 2px at 30% 15%, white, transparent),
        radial-gradient(1px 1px at 40% 45%, white, transparent),
        radial-gradient(1px 1px at 50% 25%, white, transparent),
        radial-gradient(2px 2px at 60% 60%, white, transparent),
        radial-gradient(1px 1px at 70% 35%, white, transparent),
        radial-gradient(1px 1px at 80% 70%, white, transparent),
        radial-gradient(2px 2px at 90% 20%, white, transparent),
        radial-gradient(1px 1px at 95% 85%, white, transparent),
        radial-gradient(1px 1px at 5% 55%, white, transparent),
        radial-gradient(2px 2px at 15% 75%, white, transparent),
        radial-gradient(1px 1px at 25% 90%, white, transparent),
        radial-gradient(1px 1px at 85% 45%, white, transparent),
        radial-gradient(2px 2px at 75% 5%, white, transparent);
    animation: twinkle 3s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

/* Snowflakes */
.snowflakes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.snowflakes::before,
.snowflakes::after {
    content: '❄';
    position: absolute;
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.6);
    animation: snowfall 10s linear infinite;
}

.snowflakes::before {
    left: 20%;
    animation-delay: 0s;
}

.snowflakes::after {
    left: 70%;
    animation-delay: 5s;
}

@keyframes snowfall {
    0% { transform: translateY(-20px) rotate(0deg); opacity: 0; }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% { transform: translateY(100vh) rotate(360deg); opacity: 0; }
}

/* Magic Particles */
.magic-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 107, 157, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(196, 79, 226, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(255, 123, 84, 0.2) 0%, transparent 50%);
    animation: particleFlow 10s ease-in-out infinite;
}

@keyframes particleFlow {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

/* Confetti Container */
.confetti-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (max-height: 700px) {
    .intro-year {
        font-size: 4.5rem;
    }
    
    .intro-title {
        font-size: 2.5rem;
    }
    
    .photo-frame {
        max-width: 260px;
    }
    
    .vinyl-record {
        width: 160px;
        height: 160px;
    }
    
    .music-player {
        padding: 20px;
    }
}

@media (max-height: 600px) {
    .slide-content {
        padding: 40px 20px 30px;
    }
    
    .intro-year {
        font-size: 3.5rem;
    }
    
    .intro-title {
        font-size: 2rem;
    }
    
    .stats-grid {
        gap: 15px;
    }
    
    .stat-item {
        padding: 15px 10px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}