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

body {
    font-family: 'Raleway', sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: #fff;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Canvas Background */
canvas {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1;
    pointer-events: none;
}

/* Loading Screen */
#loadingScreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    transition: opacity 0.5s ease;
}

#loadingScreen.fade-out {
    opacity: 0;
    pointer-events: none;
}

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

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 5px solid rgba(0, 255, 255, 0.2);
    border-top: 5px solid #00ffff;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    font-family: 'Dancing Script', cursive;
    font-size: 1.8rem;
    color: #00ffff;
    text-shadow: 0 0 15px #00ffff;
    animation: pulse 1.5s ease-in-out infinite;
}

/* Start Screen */
#startScreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    cursor: pointer;
    transition: opacity 0.5s ease;
}

#startScreen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.start-content {
    text-align: center;
    animation: pulse 2s ease-in-out infinite;
}

.start-content h1 {
    font-family: 'Dancing Script', cursive;
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: #fff;
    text-shadow: 2px 2px 10px rgba(0,0,0,0.3);
}

.start-content p {
    font-size: 5rem;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

/* Verification Screen */
#verificationScreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.5s ease;
}

#verificationScreen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.verification-content {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 3rem 2rem;
    border-radius: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    max-width: 500px;
    width: 90%;
}

.verification-content h2 {
    font-family: 'Dancing Script', cursive;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: #fff;
    text-shadow: 2px 2px 10px rgba(0,0,0,0.3);
}

.verification-question {
    font-size: 1.8rem;
    font-weight: bold;
    color: #fff;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 5px rgba(0,0,0,0.3);
}

.verification-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.verification-option {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 15px;
    padding: 1.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

.verification-option:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(255, 255, 255, 0.3);
}

.verification-option.correct {
    background: rgba(0, 255, 0, 0.3);
    border-color: #00ff00;
    animation: correctPulse 0.5s ease;
}

.verification-option.wrong {
    background: rgba(255, 0, 0, 0.3);
    border-color: #ff0000;
    animation: shake 0.5s ease;
}

.verification-hint {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    font-style: italic;
}

@keyframes correctPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-10px);
    }
    75% {
        transform: translateX(10px);
    }
}

/* Countdown Timer Screen */
#countdownScreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.5s ease;
}

#countdownScreen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.countdown-content {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 3rem 4rem;
    border-radius: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    max-width: 600px;
    width: 90%;
}

.countdown-content h2 {
    font-family: 'Dancing Script', cursive;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #fff;
    text-shadow: 2px 2px 10px rgba(0,0,0,0.3);
}

.countdown-timer {
    font-family: 'Courier New', monospace;
    font-size: 5rem;
    font-weight: bold;
    color: #00ffff;
    text-shadow: 
        0 0 20px #00ffff,
        0 0 40px #00ffff,
        0 0 60px #00ffff;
    margin-bottom: 1.5rem;
    animation: timerPulse 1s ease-in-out infinite;
    letter-spacing: 0.1em;
}

@keyframes timerPulse {
    0%, 100% {
        transform: scale(1);
        text-shadow: 
            0 0 20px #00ffff,
            0 0 40px #00ffff,
            0 0 60px #00ffff;
    }
    50% {
        transform: scale(1.05);
        text-shadow: 
            0 0 30px #00ffff,
            0 0 50px #00ffff,
            0 0 70px #00ffff;
    }
}

.countdown-message {
    font-family: 'Dancing Script', cursive;
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

.countdown-progress {
    width: 100%;
    height: 10px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.3);
}

.countdown-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #00ffff, #00ff00);
    border-radius: 10px;
    width: 0%;
    transition: width 1s linear;
    box-shadow: 0 0 10px #00ffff;
}

.skip-button {
    margin-top: 2rem;
    padding: 15px 40px;
    font-size: 1.2rem;
    font-weight: bold;
    font-family: 'Raleway', sans-serif;
    background: linear-gradient(145deg, #ff00ff, #ff0080);
    border: 2px solid #ff00ff;
    border-radius: 30px;
    color: #fff;
    cursor: pointer;
    box-shadow: 0 5px 20px rgba(255, 0, 255, 0.4);
    transition: all 0.3s ease;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.skip-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 0, 255, 0.6);
    background: linear-gradient(145deg, #ff00ff, #ff0099);
}

.skip-button:active {
    transform: translateY(0);
    box-shadow: 0 3px 15px rgba(255, 0, 255, 0.4);
}

/* Main Content */
#mainContent {
    position: relative;
    z-index: 10;
    min-height: 100vh;
}

#mainContent.hidden {
    display: none;
}

/* Birthday Header */
.birthday-header {
    text-align: center;
    padding: 2rem 1rem;
    animation: fadeInDown 1s ease;
}

.birthday-header h1 {
    font-family: 'Dancing Script', cursive;
    font-size: 4.5rem;
    margin: 0;
}

/* Main Container - Two Column Layout */
.main-container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    gap: 2rem;
    min-height: 80vh;
}

/* Initially center the OLED display */
.main-container.centered {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 900px;
    padding: 1rem;
    min-height: auto;
    gap: 0;
}

.main-container.centered .left-section {
    max-width: 100%;
    width: 100%;
    flex: none;
    animation: fadeInUp 1.5s ease;
}

.main-container.centered .right-section {
    display: none !important;
}

.left-section {
    flex: 1;
    max-width: 900px;
}

.right-section {
    flex: 1;
    max-width: 600px;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateX(100px);
    transition: opacity 1s ease, transform 1s ease;
}

.right-section.show {
    opacity: 1;
    transform: translateX(0);
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Canvas Background - Darker for better visibility */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(26, 26, 46, 0.3) 0%, rgba(15, 52, 96, 0.5) 100%);
    z-index: 0;
    pointer-events: none;
}

/* Fire Effect - Eye-catching White with Rainbow Glow */
.fire {
    color: #ffffff;
    font-weight: 700;
    text-shadow: 
        0 0 20px #ff00ff,
        0 0 40px #ff00ff,
        0 0 60px #00ffff,
        0 0 80px #00ffff,
        0 0 100px #ffff00,
        0 0 120px #ff00ff,
        5px 5px 10px rgba(0, 0, 0, 0.8);
    animation: fireAnimation 3s ease-in-out infinite;
}

@keyframes fireAnimation {
    0% {
        text-shadow: 
            0 0 20px #ff00ff,
            0 0 40px #ff00ff,
            0 0 60px #00ffff,
            0 0 80px #00ffff,
            0 0 100px #ffff00,
            0 0 120px #ff00ff,
            5px 5px 10px rgba(0, 0, 0, 0.8);
    }
    33% {
        text-shadow: 
            0 0 20px #00ffff,
            0 0 40px #00ffff,
            0 0 60px #ffff00,
            0 0 80px #ffff00,
            0 0 100px #ff00ff,
            0 0 120px #00ffff,
            5px 5px 10px rgba(0, 0, 0, 0.8);
    }
    66% {
        text-shadow: 
            0 0 20px #ffff00,
            0 0 40px #ffff00,
            0 0 60px #ff00ff,
            0 0 80px #ff00ff,
            0 0 100px #00ffff,
            0 0 120px #ffff00,
            5px 5px 10px rgba(0, 0, 0, 0.8);
    }
    100% {
        text-shadow: 
            0 0 20px #ff00ff,
            0 0 40px #ff00ff,
            0 0 60px #00ffff,
            0 0 80px #00ffff,
            0 0 100px #ffff00,
            0 0 120px #ff00ff,
            5px 5px 10px rgba(0, 0, 0, 0.8);
    }
}

/* OLED TV Display */
.oled-tv {
    margin: 2rem auto 3rem;
    max-width: 900px;
    width: 100%;
    animation: fadeInUp 1.5s ease;
}

.tv-frame {
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.8),
        inset 0 0 20px rgba(255, 255, 255, 0.05);
    position: relative;
}

.tv-screen {
    background: #000;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16 / 9;
    box-shadow: 
        inset 0 0 30px rgba(0, 0, 0, 0.9),
        0 0 50px rgba(0, 255, 255, 0.3);
}

.slideshow-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    background: #000;
}

.slide-placeholder {
    font-size: 6rem;
    color: rgba(255, 255, 255, 0.3);
}

.slide-caption {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.7);
    padding: 15px 20px;
    border-radius: 10px;
    font-family: 'Dancing Script', cursive;
    font-size: 1.5rem;
    color: #fff;
    text-align: center;
}

.tv-stand {
    width: 200px;
    height: 15px;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    margin: 0 auto;
    border-radius: 0 0 10px 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
}

.tv-base {
    width: 250px;
    height: 8px;
    background: linear-gradient(145deg, #3a3a3a, #2a2a2a);
    margin: 0 auto;
    border-radius: 5px;
}

.tv-label {
    text-align: center;
    margin-top: 1rem;
    font-family: 'Dancing Script', cursive;
    font-size: 1.3rem;
    color: #00ffff;
    text-shadow: 0 0 10px #00ffff;
}

/* Play Button Overlay */
.play-button-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 100;
    cursor: pointer;
    transition: opacity 0.5s ease;
}

.play-button-overlay:hover .play-button {
    transform: scale(1.1);
}

.play-button {
    text-align: center;
    transition: transform 0.3s ease;
    animation: playPulse 2s ease-in-out infinite;
}

.play-button svg {
    filter: drop-shadow(0 0 20px rgba(0, 255, 255, 0.8));
    transition: filter 0.3s ease;
}

.play-button:hover svg {
    filter: drop-shadow(0 0 30px rgba(0, 255, 255, 1));
}

.play-text {
    font-family: 'Dancing Script', cursive;
    font-size: 1.5rem;
    color: #00ffff;
    margin-top: 1rem;
    text-shadow: 0 0 15px #00ffff;
}

@keyframes playPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Pause/Resume Button - Below Display */
.pause-resume-button {
    text-align: center;
    margin-top: 1rem;
}

.control-btn {
    background: linear-gradient(145deg, #00ffff, #00cccc);
    border: 2px solid #00ffff;
    border-radius: 25px;
    padding: 12px 30px;
    font-size: 1.1rem;
    font-weight: bold;
    color: #000;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0, 255, 255, 0.4);
    transition: all 0.3s ease;
    font-family: 'Raleway', sans-serif;
}

.control-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 255, 255, 0.6);
    background: linear-gradient(145deg, #00ffff, #00e6e6);
}

.control-btn:active {
    transform: translateY(0);
    box-shadow: 0 3px 10px rgba(0, 255, 255, 0.4);
}

/* Birthday Wish Slide */
.wish-slide {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.birthday-wish-content {
    text-align: center;
    padding: 2rem;
    animation: wishAppear 1s ease-in-out;
}

.wish-title {
    font-family: 'Dancing Script', cursive;
    font-size: 3.5rem;
    color: #ffffff;
    margin-bottom: 1rem;
    text-shadow: 
        0 0 20px #ff00ff,
        0 0 40px #ff00ff,
        0 0 60px #00ffff,
        0 0 80px #00ffff;
    animation: wishGlow 2s ease-in-out infinite;
}

.wish-name {
    font-family: 'Dancing Script', cursive;
    font-size: 5rem;
    font-weight: bold;
    color: #ffffff;
    margin: 1rem 0;
    text-shadow: 
        0 0 30px #ffff00,
        0 0 50px #ffff00,
        0 0 70px #ff00ff,
        0 0 90px #00ffff;
    animation: wishGlow 2s ease-in-out infinite 0.5s;
}

.wish-emojis {
    font-size: 3rem;
    margin: 1.5rem 0;
    animation: emojiFloat 3s ease-in-out infinite;
}

.wish-message {
    font-family: 'Raleway', sans-serif;
    font-size: 1.5rem;
    color: #ffffff;
    margin-top: 1rem;
    text-shadow: 0 0 15px #00ffff;
    animation: fadeIn 2s ease-in-out;
}

@keyframes wishAppear {
    0% {
        opacity: 0;
        transform: scale(0.5);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes wishGlow {
    0%, 100% {
        text-shadow: 
            0 0 20px #ff00ff,
            0 0 40px #ff00ff,
            0 0 60px #00ffff,
            0 0 80px #00ffff;
    }
    50% {
        text-shadow: 
            0 0 30px #ffff00,
            0 0 50px #ffff00,
            0 0 70px #ff00ff,
            0 0 90px #00ffff;
    }
}

@keyframes emojiFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

/* Scroll Down Indicator - Simple */
.scroll-indicator {
    text-align: center;
    padding: 2rem;
    display: none;
    opacity: 0;
    transition: opacity 1s ease;
    position: relative;
    z-index: 100;
}

.scroll-indicator.show {
    opacity: 1;
}

.scroll-indicator p {
    font-family: 'Dancing Script', cursive;
    font-size: 1.8rem;
    color: #00ffff;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 15px #00ffff;
}

.arrow-down {
    animation: arrowBounce 1.5s ease-in-out infinite;
}

.arrow-down svg {
    filter: drop-shadow(0 0 10px rgba(0, 255, 255, 0.8));
    width: 50px;
    height: 50px;
}

@keyframes arrowBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(15px);
    }
}

/* Poem Section */
.poem-section {
    padding: 4rem 2rem;
    max-width: 900px;
    margin: 0 auto;
}

/* Birthday Cake */
.cake-container {
    padding: 2rem;
    position: relative;
}

.cake {
    position: relative;
    margin: 0 auto 2rem;
    width: 350px;
    animation: fadeInUp 1.5s ease, cakePulse 3s ease-in-out infinite 2s;
}

@keyframes cakePulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

.candles {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 10px;
    position: relative;
    z-index: 10;
}

.candle {
    position: relative;
    width: 12px;
    height: 60px;
    background: linear-gradient(to bottom, #fff 0%, #f0f0f0 100%);
    border-radius: 3px 3px 0 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    cursor: pointer;
    transition: transform 0.3s ease;
}

.candle:hover {
    transform: scale(1.1);
}

.wick {
    position: absolute;
    top: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 8px;
    background: #333;
}

.flame {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 30px;
    background: radial-gradient(ellipse at center, #fff 0%, #ffeb3b 20%, #ff9800 50%, #ff5722 80%);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    animation: flicker 0.3s ease-in-out infinite alternate;
    box-shadow: 0 0 20px #ff9800, 0 0 30px #ff5722;
}

.candle.blown-out .flame {
    display: none;
}

.candle.blown-out {
    opacity: 0.7;
}

@keyframes flicker {
    0% {
        transform: translateX(-50%) scale(1) translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateX(-50%) scale(1.05) translateY(-2px);
        opacity: 0.9;
    }
}

.cake-layer {
    margin: 0 auto;
    border-radius: 8px;
    position: relative;
}

/* Top Layer - Pink Frosting */
.top-layer {
    width: 200px;
    height: 50px;
    background: linear-gradient(180deg, #ffb3d9 0%, #ff85c0 50%, #ff6ba8 100%);
    border-radius: 8px;
    box-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.3),
        inset 0 2px 0 rgba(255, 255, 255, 0.5),
        inset 0 -2px 0 rgba(0, 0, 0, 0.2);
    position: relative;
}

.top-layer::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 15px;
    right: 15px;
    height: 6px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 3px;
}

.top-layer::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 8px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.3) 10%, 
        transparent 20%,
        rgba(255, 255, 255, 0.3) 30%, 
        transparent 40%,
        rgba(255, 255, 255, 0.3) 50%, 
        transparent 60%,
        rgba(255, 255, 255, 0.3) 70%, 
        transparent 80%,
        rgba(255, 255, 255, 0.3) 90%, 
        transparent 100%);
    border-radius: 0 0 8px 8px;
}

/* Middle Layer - Yellow Frosting */
.middle-layer {
    width: 260px;
    height: 60px;
    background: linear-gradient(180deg, #ffe8b3 0%, #ffd98f 50%, #ffcc6b 100%);
    border-radius: 8px;
    box-shadow: 
        0 5px 10px rgba(0, 0, 0, 0.3),
        inset 0 2px 0 rgba(255, 255, 255, 0.5),
        inset 0 -2px 0 rgba(0, 0, 0, 0.2);
    margin-top: -5px;
    position: relative;
}

.middle-layer::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 20px;
    right: 20px;
    height: 6px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 3px;
}

.middle-layer::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 10px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.3) 8%, 
        transparent 16%,
        rgba(255, 255, 255, 0.3) 24%, 
        transparent 32%,
        rgba(255, 255, 255, 0.3) 40%, 
        transparent 48%,
        rgba(255, 255, 255, 0.3) 56%, 
        transparent 64%,
        rgba(255, 255, 255, 0.3) 72%, 
        transparent 80%,
        rgba(255, 255, 255, 0.3) 88%, 
        transparent 96%);
    border-radius: 0 0 8px 8px;
}

/* Bottom Layer - Blue Frosting */
.bottom-layer {
    width: 320px;
    height: 70px;
    background: linear-gradient(180deg, #a8d8ff 0%, #7ec8ff 50%, #4db8ff 100%);
    border-radius: 8px;
    box-shadow: 
        0 6px 12px rgba(0, 0, 0, 0.3),
        inset 0 2px 0 rgba(255, 255, 255, 0.5),
        inset 0 -2px 0 rgba(0, 0, 0, 0.2);
    margin-top: -5px;
    position: relative;
}

.bottom-layer::before {
    content: '';
    position: absolute;
    top: 18px;
    left: 25px;
    right: 25px;
    height: 6px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 3px;
}

.bottom-layer::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 12px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.3) 7%, 
        transparent 14%,
        rgba(255, 255, 255, 0.3) 21%, 
        transparent 28%,
        rgba(255, 255, 255, 0.3) 35%, 
        transparent 42%,
        rgba(255, 255, 255, 0.3) 49%, 
        transparent 56%,
        rgba(255, 255, 255, 0.3) 63%, 
        transparent 70%,
        rgba(255, 255, 255, 0.3) 77%, 
        transparent 84%,
        rgba(255, 255, 255, 0.3) 91%, 
        transparent 98%);
    border-radius: 0 0 8px 8px;
}

/* Cake Plate */
.cake-plate {
    width: 380px;
    height: 15px;
    background: linear-gradient(180deg, #e8e8e8 0%, #d0d0d0 50%, #b8b8b8 100%);
    border-radius: 50%;
    margin: -5px auto 0;
    box-shadow: 
        0 5px 15px rgba(0, 0, 0, 0.4),
        inset 0 1px 2px rgba(255, 255, 255, 0.6);
}

@keyframes layerGlow {
    0%, 100% {
        filter: brightness(1);
    }
    50% {
        filter: brightness(1.1);
    }
}

.blow-instruction {
    font-family: 'Dancing Script', cursive;
    font-size: 1.3rem;
    color: #ffff00;
    margin-top: 1rem;
    animation: bounce 2s ease-in-out infinite;
    text-shadow: 0 0 10px #ffff00;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Birthday Poem */
.birthday-poem {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 2.5rem;
    margin: 3rem auto;
    box-shadow: 
        0 10px 40px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(255, 0, 255, 0.3);
    animation: fadeInUp 2s ease;
    border: 3px solid rgba(255, 0, 255, 0.5);
}

.birthday-poem h2 {
    font-family: 'Dancing Script', cursive;
    font-size: 2.5rem;
    color: #ffff00;
    margin-bottom: 1.5rem;
    text-shadow: 0 0 20px #ffff00;
    text-align: center;
}

.poem-content {
    font-family: 'Raleway', sans-serif;
    font-size: 1.2rem;
    line-height: 1.8;
    color: #fff;
    text-align: center;
}

.poem-content p {
    margin: 0.3rem 0;
    animation: fadeIn 0.8s ease forwards;
    opacity: 0;
    text-align: center;
}

.poem-content p:nth-child(1) { animation-delay: 0.2s; }
.poem-content p:nth-child(2) { animation-delay: 0.4s; }
.poem-content p:nth-child(3) { animation-delay: 0.6s; }
.poem-content p:nth-child(4) { animation-delay: 0.8s; }
.poem-content p:nth-child(6) { animation-delay: 1s; }
.poem-content p:nth-child(7) { animation-delay: 1.2s; }
.poem-content p:nth-child(8) { animation-delay: 1.4s; }
.poem-content p:nth-child(9) { animation-delay: 1.6s; }

.poem-signature {
    font-family: 'Dancing Script', cursive;
    font-size: 1.8rem;
    color: #00ffff;
    font-weight: bold;
    margin-top: 1rem;
    animation-delay: 2s !important;
    text-shadow: 0 0 15px #00ffff;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-50px) rotateY(-20deg);
    }
    to {
        opacity: 1;
        transform: translateX(0) rotateY(0);
    }
}

@keyframes slideInFrame {
    from {
        opacity: 0;
        transform: translateY(30px) rotate(-5deg);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotate(-2deg);
    }
}

/* Responsive Design */

/* Tablet View (768px - 1200px) */
@media (max-width: 1200px) {
    .main-container {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
        padding: 1.5rem;
    }
    
    .left-section, .right-section {
        max-width: 100%;
        width: 100%;
    }
    
    .birthday-header h1 {
        font-size: 4rem;
    }
    
    .oled-tv {
        max-width: 95%;
    }
    
    .cake {
        transform: scale(0.95);
    }
    
    .scroll-indicator {
        padding: 1.5rem;
    }
    
    .scroll-indicator p {
        font-size: 1.6rem;
    }
    
    .arrow-down svg {
        width: 45px;
        height: 45px;
    }
}

/* Mobile View (up to 768px) */
@media (max-width: 768px) {
    body {
        padding: 0;
    }
    
    #mainContent {
        padding: 1rem 0.5rem;
    }
    
    .birthday-header {
        padding: 1.5rem 0.5rem;
    }
    
    .birthday-header h1 {
        font-size: 2.8rem;
        line-height: 1.2;
    }
    
    .start-content h1 {
        font-size: 2rem;
        padding: 0 1rem;
    }
    
    .start-content p {
        font-size: 4rem;
    }
    
    .main-container {
        padding: 0.5rem;
        gap: 2rem;
    }
    
    /* OLED TV Mobile */
    .oled-tv {
        max-width: 100%;
        width: 100%;
        margin: 1rem auto 2rem;
    }
    
    .tv-frame {
        padding: 15px;
    }
    
    .tv-label {
        font-size: 1.1rem;
    }
    
    .play-button svg {
        width: 60px;
        height: 60px;
    }
    
    .play-text {
        font-size: 1.2rem;
    }
    
    .pause-resume-button svg {
        width: 40px;
        height: 40px;
    }
    
    .slide-caption {
        font-size: 1.2rem;
        padding: 10px 15px;
        bottom: 10px;
        left: 10px;
        right: 10px;
    }
    
    /* Birthday Wish Slide Mobile */
    .wish-title {
        font-size: 2.5rem;
    }
    
    .wish-name {
        font-size: 3.5rem;
    }
    
    .wish-emojis {
        font-size: 2.5rem;
    }
    
    .wish-message {
        font-size: 1.2rem;
    }
    
    /* Cake Mobile */
    .cake {
        transform: scale(0.75);
    }
    
    .blow-instruction {
        font-size: 1.1rem;
    }
    
    /* Scroll Indicator Mobile */
    .scroll-indicator {
        padding: 1.5rem 1rem;
        margin: 1rem auto;
    }
    
    .scroll-indicator p {
        font-size: 1.4rem;
        margin-bottom: 0.5rem;
    }
    
    .arrow-down svg {
        width: 40px;
        height: 40px;
    }
    
    /* Poem Mobile */
    .poem-section {
        padding: 2rem 1rem;
    }
    
    .birthday-poem {
        padding: 1.5rem;
        margin: 2rem auto;
    }
    
    .birthday-poem h2 {
        font-size: 1.8rem;
        margin-bottom: 1rem;
    }
    
    .poem-content {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    .poem-signature {
        font-size: 1.5rem;
    }
}

/* Small Mobile View (up to 480px) */
@media (max-width: 480px) {
    .birthday-header h1 {
        font-size: 2.2rem;
    }
    
    .start-content h1 {
        font-size: 1.5rem;
    }
    
    .start-content p {
        font-size: 3rem;
    }
    
    .main-container {
        padding: 0.25rem;
        gap: 1.5rem;
    }
    
    .tv-frame {
        padding: 10px;
    }
    
    .tv-label {
        font-size: 1rem;
    }
    
    .play-button svg {
        width: 50px;
        height: 50px;
    }
    
    .play-text {
        font-size: 1rem;
    }
    
    .slide-caption {
        font-size: 1rem;
        padding: 8px 12px;
    }
    
    .wish-title {
        font-size: 2rem;
    }
    
    .wish-name {
        font-size: 3rem;
    }
    
    .wish-emojis {
        font-size: 2rem;
    }
    
    .wish-message {
        font-size: 1rem;
    }
    
    .cake {
        transform: scale(0.6);
    }
    
    .blow-instruction {
        font-size: 1rem;
    }
    
    .scroll-indicator {
        padding: 1rem 0.5rem;
    }
    
    .scroll-indicator p {
        font-size: 1.2rem;
    }
    
    .arrow-down svg {
        width: 35px;
        height: 35px;
    }
    
    .birthday-poem {
        padding: 1rem;
    }
    
    .birthday-poem h2 {
        font-size: 1.5rem;
    }
    
    .poem-content {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    .poem-signature {
        font-size: 1.3rem;
    }
}

/* Landscape Mobile View */
@media (max-width: 900px) and (orientation: landscape) {
    .birthday-header h1 {
        font-size: 2.5rem;
    }
    
    .main-container {
        min-height: auto;
    }
    
    .cake {
        transform: scale(0.7);
    }
    
    .scroll-indicator {
        padding: 1rem;
    }
    
    .scroll-indicator p {
        font-size: 1.4rem;
    }
    
    .arrow-down svg {
        width: 40px;
        height: 40px;
    }
}