:root {
    --primary-gold: #f1c40f;
    --accent-gold: #ffcc00;
    --bg-dark: #0f0f1b;
    --bg-darker: #05050a;
    --text-light: #ffffff;
    --text-dim: rgba(255, 255, 255, 0.7);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    min-height: 100vh;
}

.font-serif {
    font-family: 'Playfair Display', serif;
}

.font-serif-italic {
    font-family: 'Playfair Display', serif;
    font-style: italic;
}

.font-handwriting {
    font-family: 'Caveat', cursive;
    font-weight: 700;
}

.app-container {
    position: relative;
    width: 100%;
    min-height: 100vh;
    z-index: 1;
}

/* Hero Content Styling */
#animated-heading {
    font-size: clamp(3.5rem, 12vw, 7rem);
    color: var(--primary-gold);
    line-height: 1.1;
    margin-bottom: 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.1em;
}

.letter {
    display: inline-block;
    opacity: 0;
    transform: translateY(30px) rotate(10deg);
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.letter.animate {
    opacity: 1;
    transform: translateY(0) rotate(0);
}

/* Intro Overlay */
.intro-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-dark);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 1s ease-out, visibility 1s;
}

.intro-overlay.fade-out {
    opacity: 0;
    visibility: hidden;
}

.cake-container {
    position: relative;
    width: 300px;
    height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    margin-bottom: 50px;
    perspective: 1000px;
}

/* Plate */
.cake-plate {
    width: 280px;
    height: 40px;
    background: radial-gradient(circle at 50% 0%, #ffffff, #e0e0e0 70%);
    border-radius: 50%;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5), inset 0 -10px 20px rgba(0, 0, 0, 0.1);
    transform: rotateX(65deg) scale(0);
    transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1;
    position: relative;
}

.cake-plate::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
}

.cake-plate.show {
    transform: rotateX(65deg) scale(1);
}

/* Layers */
.cake-layer {
    position: absolute;
    bottom: 25px;
    border-radius: 50% / 25%;
    transform: translateY(-800px) scale(0.5);
    opacity: 0;
    /* Fix: Start fully transparent */
    transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease-out;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
}

/* Frosting Drip Effect */
.cake-layer::after {
    content: '';
    position: absolute;
    top: 30%;
    left: 0;
    width: 100%;
    height: 40%;
    background: inherit;
    filter: brightness(1.1);
    border-radius: 0 0 50% 50% / 0 0 100% 100%;
    clip-path: polygon(0% 0%, 100% 0%, 100% 100%, 90% 80%, 80% 100%, 70% 85%, 60% 100%, 50% 80%, 40% 100%, 30% 85%, 20% 100%, 10% 80%, 0% 100%);
}

.cake-layer::before {
    content: '';
    position: absolute;
    top: 5%;
    left: 10%;
    width: 30%;
    height: 15%;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    filter: blur(2px);
    z-index: 10;
}

.layer-1 {
    width: 220px;
    height: 100px;
    background: linear-gradient(135deg, #ff9eb5 0%, #ff4d79 100%);
    z-index: 2;
}

.layer-2 {
    width: 170px;
    height: 85px;
    background: linear-gradient(135deg, #b5ff9e 0%, #6bff4d 100%);
    bottom: 85px;
    z-index: 3;
}

.layer-3 {
    width: 120px;
    height: 70px;
    background: linear-gradient(135deg, #9eb5ff 0%, #4d79ff 100%);
    bottom: 140px;
    z-index: 4;
}

.cake-layer.show {
    transform: translateY(0) scale(1);
    opacity: 1;
}

/* Candles */
.candles-group {
    position: absolute;
    bottom: 185px;
    z-index: 5;
    display: flex;
    justify-content: center;
    width: 100%;
}

.candle {
    width: 10px;
    height: 40px;
    background: repeating-linear-gradient(45deg, #fff, #fff 5px, #ffeb3b 5px, #ffeb3b 10px);
    border-radius: 5px;
    position: relative;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.candle.show {
    opacity: 1;
    transform: translateY(0);
}

.flame {
    width: 12px;
    height: 20px;
    background: radial-gradient(ellipse at bottom, #ff5e00 0%, #ffaa00 50%, #fff700 95%);
    border-radius: 50% 50% 20% 20%;
    position: absolute;
    top: -22px;
    left: 50%;
    transform: translateX(-50%) scale(0);
    transform-origin: bottom;
    box-shadow: 0 0 20px rgba(255, 94, 0, 0.8);
    animation: flicker 0.1s infinite;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.flame.lit {
    transform: translateX(-50%) scale(1);
}

/* Lollipops */
.lollipops-container {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 6;
    pointer-events: none;
}

.lollipop {
    position: absolute;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #ffffff 0%, rgba(255, 255, 255, 0) 30%),
        radial-gradient(circle at center, #ff5252 0%, #b71c1c 100%);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: all 1s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.lollipop::after {
    content: '';
    position: absolute;
    top: 32px;
    left: 50%;
    width: 5px;
    height: 50px;
    background: linear-gradient(to right, #f5f5f5, #e0e0e0);
    transform: translateX(-50%);
    border-radius: 2px;
}

.lolly-1 {
    top: -200px;
    left: -300px;
    background: radial-gradient(circle at 35% 35%, #ffffff 0%, rgba(255, 255, 255, 0) 30%), radial-gradient(circle at center, #ffeb3b, #fbc02d);
}

.lolly-2 {
    top: -200px;
    right: -300px;
    background: radial-gradient(circle at 35% 35%, #ffffff 0%, rgba(255, 255, 255, 0) 30%), radial-gradient(circle at center, #e91e63, #c2185b);
}

.lolly-3 {
    bottom: 500px;
    left: -400px;
    background: radial-gradient(circle at 35% 35%, #ffffff 0%, rgba(255, 255, 255, 0) 30%), radial-gradient(circle at center, #4caf50, #388e3c);
}

.lolly-4 {
    bottom: 500px;
    right: -400px;
    background: radial-gradient(circle at 35% 35%, #ffffff 0%, rgba(255, 255, 255, 0) 30%), radial-gradient(circle at center, #2196f3, #1976d2);
}

.lollipop.throw {
    opacity: 1;
    transition: all 1s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Adjusted "Stuck" Positions to ensure they touch the cake */
.lolly-1.throw {
    top: 110px;
    left: 50px;
    transform: rotate(-25deg);
    opacity: 1;
}

.lolly-2.throw {
    top: 120px;
    right: 45px;
    transform: rotate(25deg);
    opacity: 1;
}

.lolly-3.throw {
    top: 160px;
    left: 35px;
    transform: rotate(-45deg);
    opacity: 1;
}

.lolly-4.throw {
    top: 150px;
    right: 40px;
    transform: rotate(45deg);
    opacity: 1;
}

@keyframes flicker {
    0% {
        transform: translateX(-50%) scale(1) rotate(-1deg);
    }

    50% {
        transform: translateX(-50%) scale(1.1) rotate(1deg);
    }

    100% {
        transform: translateX(-50%) scale(1) rotate(-1deg);
    }
}

.intro-text {
    font-size: 1.5rem;
    color: var(--primary-gold);
    opacity: 0;
    transition: opacity 1s ease-in;
    margin-top: 100px;
}

.intro-text.show {
    opacity: 1;
}

/* Gradient Motion (Requirement: top to 1 to 110 then slowly 100) */
.cake-container.motion-effect {
    animation: shineEffect 3s infinite alternate;
}

@keyframes shineEffect {
    0% {
        filter: brightness(1);
    }

    50% {
        filter: brightness(1.1);
    }

    100% {
        filter: brightness(1);
    }
}

/* Background Effects */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    overflow: hidden;
}

.particle-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.grain-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("https://www.transparenttextures.com/patterns/asfalt-dark.png");
    opacity: 0.05;
    pointer-events: none;
}

/* Sections */
section {
    padding: 100px 20px;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    /* Ensure absolute positioning works for children */
}

.scroll-indicator {
    position: absolute;
    bottom: 90px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity 1s ease;
    animation: fadeInArrow 1s 4s forwards;
    /* Delay to appear after other elements */
}

@keyframes fadeInArrow {
    to {
        opacity: 0.7;
    }
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-bottom: 2px solid var(--primary-gold);
    border-right: 2px solid var(--primary-gold);
    transform: rotate(45deg);
    margin: -5px;
    animation: scrollDown 2s infinite;
}

.scroll-arrow:nth-child(2) {
    animation-delay: 0.2s;
}

.scroll-arrow:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes scrollDown {
    0% {
        opacity: 0;
        transform: rotate(45deg) translate(-20px, -20px);
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        transform: rotate(45deg) translate(20px, 20px);
    }
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.hero-content h2 {
    font-size: 1.2rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--primary-gold);
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
}

.hero-content h1 {
    opacity: 1;
    /* Allow letters to animate */
    transform: none;
    margin-bottom: 30px;
}

#animated-heading {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0;
    /* Gap handled by   and spans */
    max-width: 900px;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-dim);
    max-width: 600px;
    opacity: 0;
    transform: translateY(20px);
    line-height: 1.6;
}

/* Melodies Section */
.melodies-title {
    font-size: 2.5rem;
    margin-bottom: 50px;
    position: relative;
}

.melodies-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: var(--primary-gold);
}

.melodies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 300px));
    justify-content: center;
    gap: 20px;
    width: 100%;
    padding: 20px 0;
}

.melodies-grid::-webkit-scrollbar {
    display: none;
    /* Chrome/Safari */
}

/* Custom Audio Player Styling */
.song-card {
    min-width: 280px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 20px;
    backdrop-filter: blur(15px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.song-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.song-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--primary-gold);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

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

.album-art-wrapper {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin-bottom: 20px;
    position: relative;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    padding: 5px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.album-art {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    animation: rotate 20s linear infinite;
    animation-play-state: paused;
}

.song-card.playing .album-art {
    animation-play-state: running;
}

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

    to {
        transform: rotate(360deg);
    }
}

.song-info {
    text-align: center;
    width: 100%;
    z-index: 2;
}

.song-info h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-light);
    font-weight: 600;
}

.song-info p {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 15px;
}

/* Custom Controls */
.player-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    width: 100%;
    margin-bottom: 10px;
}

.play-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-gold);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 0 15px rgba(241, 196, 15, 0.4);
}

.play-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 25px rgba(241, 196, 15, 0.6);
}

.play-icon {
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-left: 14px solid var(--bg-dark);
    margin-left: 4px;
    /* Optical centering */
    transition: all 0.2s ease;
}

.song-card.playing .play-icon {
    width: 12px;
    height: 12px;
    border: none;
    border-left: 4px solid var(--bg-dark);
    border-right: 4px solid var(--bg-dark);
    margin-left: 0;
    background: transparent;
}

/* Progress Bar */
.progress-container {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background: var(--primary-gold);
    border-radius: 2px;
    transition: width 0.1s linear;
}

.time-info {
    display: flex;
    justify-content: space-between;
    width: 100%;
    font-size: 0.7rem;
    color: var(--text-dim);
    margin-top: 5px;
}

/* Memories Gallery */
.memories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    width: 100%;
}

.memory-item {
    position: relative;
    aspect-ratio: 4/5;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.memory-item:hover {
    transform: scale(1.03);
    z-index: 2;
}

.memory-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.memory-item:hover .memory-img {
    opacity: 1;
}

.memory-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px 20px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s ease;
}

.memory-item:hover .memory-overlay {
    transform: translateY(0);
    opacity: 1;
}

.final-wish {
    min-height: 80vh;
    justify-content: center;
}

.final-wish h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    color: var(--primary-gold);
}

.login-btn {
    margin-top: 60px;
    display: inline-block;
    padding: 15px 40px;
    background: transparent;
    border: 1px solid var(--primary-gold);
    color: var(--primary-gold);
    text-decoration: none;
    font-size: 1.2rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-radius: 5px;
    transition: all 0.3s ease;
    box-shadow: 0 0 15px rgba(241, 196, 15, 0.1);
}

.login-btn:hover {
    background: var(--primary-gold);
    color: var(--bg-dark);
    box-shadow: 0 0 30px rgba(241, 196, 15, 0.4);
    transform: translateY(-5px);
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

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

@media (max-width: 768px) {
    section {
        padding: 60px 20px;
    }

    .hero-content h1 {
        font-size: 3.5rem;
    }
}