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

body {
    font-family: 'Comic Sans MS', '맑은 고딕', cursive;
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
    color: #333;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    padding: 20px 0;
    text-align: center;
    background: rgba(33, 150, 243, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 0 0 20px 20px;
}

.logo {
    font-size: 3rem;
    font-weight: bold;
    color: #1976D2;
    text-shadow: 2px 2px 4px rgba(25, 118, 210, 0.3);
    margin-bottom: 10px;
    animation: bounce 2s ease-in-out;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

.tagline {
    font-size: 1.2rem;
    color: #0D47A1;
    font-weight: bold;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    text-align: center;
    position: relative;
    background: linear-gradient(135deg, #1976D2 0%, #42A5F5 100%);
}

.mobile-preview {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
}

.mobile-frame {
    width: 200px;
    height: 400px;
    background: #1976D2;
    border-radius: 25px;
    padding: 10px;
    box-shadow: 0 8px 20px rgba(25, 118, 210, 0.3);
    animation: float 3s ease-in-out;
}

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

.mobile-screen {
    width: 100%;
    height: 100%;
    background: #000;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.game-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

.video-placeholder {
    color: white;
    text-align: center;
    font-size: 0.9rem;
    line-height: 1.4;
    padding: 1rem;
}

.video-placeholder small {
    color: #BBDEFB;
    font-size: 0.7rem;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: #E3F2FD;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.3);
    animation: wiggle 2s ease-in-out;
}

@keyframes wiggle {
    0%, 7% { transform: rotateZ(0); }
    15% { transform: rotateZ(-3deg); }
    20% { transform: rotateZ(3deg); }
    25% { transform: rotateZ(-3deg); }
    30% { transform: rotateZ(3deg); }
    35% { transform: rotateZ(-1deg); }
    40%, 100% { transform: rotateZ(0); }
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    color: #BBDEFB;
    font-weight: bold;
}

/* Problem Section - 연한 파란색 배경 */
.problem-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
    color: #333;
}

.problem-section h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 50px;
    color: #1976D2;
    text-shadow: 2px 2px 4px rgba(25, 118, 210, 0.3);
}

.problem-section .features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
    padding: 0;
    background: transparent;
}

.problem-section .feature-card {
    background: linear-gradient(135deg, #BBDEFB 0%, #E1F5FE 100%);
    padding: 40px 30px;
    border-radius: 25px;
    text-align: center;
    transition: all 0.3s;
    border: 3px solid #1976D2;
    position: relative;
    overflow: hidden;
    color: #333;
    box-shadow: 0 10px 30px rgba(25, 118, 210, 0.2);
}

.problem-section .feature-card:hover {
    transform: translateY(-10px) scale(1.05) rotate(2deg);
    box-shadow: 0 20px 40px rgba(25, 118, 210, 0.3);
    border-color: #0D47A1;
}

.problem-section .feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    animation: bounce 2s ease-in-out;
}

.problem-section .feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #0D47A1;
}

.problem-section .feature-card p {
    opacity: 0.9;
    line-height: 1.6;
    color: #666;
}

/* Screenshots Section - 진한 파란색 배경 */
.screenshots {
    padding: 80px 0;
    background: linear-gradient(135deg, #1565C0 0%, #1976D2 100%);
    color: white;
}

.screenshots h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.screenshots-subtitle {
    text-align: center;
    font-size: 2rem;
    margin-top: 30px;
    color: #BBDEFB;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.screenshot-item {
    text-align: center;
    background: rgba(187, 222, 251, 0.2);
    border-radius: 20px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(187, 222, 251, 0.5);
    transition: transform 0.3s ease;
    max-width: 200px;
    margin: 0 auto;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.screenshot-item:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.screenshot-image {
    width: 100%;
    height: 300px;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 1rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.screenshot-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.screenshot-image:hover img {
    transform: scale(1.05);
}

.screenshot-item h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: white;
}

.screenshot-item p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.4;
}

/* Game Features Section - 연한 청록색 배경 */
.game-features {
    padding: 80px 0;
    background: linear-gradient(135deg, #E0F2F1 0%, #B2DFDB 100%);
    color: #333;
}

.game-features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #00695C;
    text-shadow: 2px 2px 4px rgba(0, 105, 92, 0.3);
}

.game-features .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.game-features .feature-card {
    background: linear-gradient(135deg, #B2DFDB 0%, #E0F2F1 100%);
    padding: 40px 30px;
    border-radius: 25px;
    text-align: center;
    transition: all 0.3s;
    border: 3px solid #00695C;
    position: relative;
    overflow: hidden;
    color: #333;
    box-shadow: 0 10px 30px rgba(0, 105, 92, 0.2);
}

.game-features .feature-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 105, 92, 0.3);
    border-color: #004D40;
}

.game-features .feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    animation: bounce 2s ease-in-out;
}

.game-features .feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #004D40;
}

.game-features .feature-card p {
    opacity: 0.9;
    line-height: 1.6;
    color: #666;
}

/* Testimonials Section - 연한 보라색 배경 */
.testimonials {
    padding: 80px 0;
    background: linear-gradient(135deg, #E8EAF6 0%, #C5CAE9 100%);
    color: #333;
}

.testimonials h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #3F51B5;
    text-shadow: 2px 2px 4px rgba(63, 81, 181, 0.3);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial-item {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(63, 81, 181, 0.1);
    border: 2px solid #C5CAE9;
    transition: transform 0.3s ease;
}

.testimonial-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(63, 81, 181, 0.2);
}

.testimonial-item p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    font-style: italic;
    color: #333;
}

.testimonial-author {
    font-size: 0.9rem;
    opacity: 0.8;
    color: #3F51B5;
    font-weight: bold;
}

/* Download Section - 연한 초록색 배경 */
.download-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #E8F5E8 0%, #C8E6C9 100%);
    color: #333;
    text-align: center;
}

.download-section h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #2E7D32;
    text-shadow: 2px 2px 4px rgba(46, 125, 50, 0.3);
}

.download-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1B5E20;
}

.download-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #333;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 24px;
    background: linear-gradient(135deg, #1976D2 0%, #42A5F5 100%);
    border-radius: 15px;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
    height: 60px;
    width: 180px;
    box-shadow: 0 4px 12px rgba(25, 118, 210, 0.2);
    border: 2px solid #1976D2;
}

.download-btn:hover {
    background: linear-gradient(135deg, #0D47A1 0%, #1976D2 100%);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 20px rgba(25, 118, 210, 0.3);
}

.app-store-btn,
.google-play-btn {
    display: inline-block;
    text-decoration: none;
    transition: all 0.3s ease;
}

.app-store-btn img,
.google-play-btn img {
    height: 60px;
    width: 180px;
    object-fit: contain;
    border-radius: 15px;
    box-shadow: 0 4px 12px rgba(25, 118, 210, 0.2);
    transition: all 0.3s ease;
    background: #fff;
    padding: 0;
    
}

.app-store-btn:hover img,
.google-play-btn:hover img {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 20px rgba(25, 118, 210, 0.3);
}

/* Footer */
.footer {
    padding: 40px 0;
    text-align: center;
    background: linear-gradient(135deg, #1976D2 0%, #42A5F5 100%);
    color: white;
}

/* Fun animations */
.bounce-in {
    animation: bounceIn 1s ease-out;
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); opacity: 1; }
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .problem-section .features,
    .game-features .features-grid {
        grid-template-columns: 1fr;
    }

    .screenshots-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .problem-section h2,
    .screenshots h2,
    .game-features h2,
    .testimonials h2 {
        font-size: 2rem;
    }

    .screenshots-subtitle {
        font-size: 1.5rem;
    }
}