:root {
    --primary-color: #6C5CE7;
    --secondary-color: #A29BFE;
    --text-color: #2D3436;
    --text-light: #636E72;
    --bg-color: #F8F9FA;
    --white: #FFFFFF;
}

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

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
}

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

/* Header */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary-color);
    padding: 15px 0;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: cover;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
    overflow: hidden;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-color);
}

.highlight {
    color: var(--primary-color);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: var(--secondary-color);
    opacity: 0.5;
    z-index: -1;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 40px;
}

.store-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.store-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: #000;
    color: #fff;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 10px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.store-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.btn-sub {
    display: block;
    font-size: 0.7rem;
    line-height: 1;
}

.btn-main {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.2;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
}

.mockup-img {
    width: 100%;
    max-width: 400px;
    border-radius: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    transform: rotate(-5deg);
    transition: transform 0.5s;
}

.hero-image:hover .mockup-img {
    transform: rotate(0deg) scale(1.02);
}

/* Features Section */
.features {
    padding: 100px 0;
    background-color: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--text-color);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    justify-content: center;
}

.feature-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-color);
    border-radius: 20px;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.feature-icon {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 20px;
    filter: drop-shadow(0 5px 10px rgba(0,0,0,0.1));
}

.feature-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.feature-desc {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    background-color: var(--text-color);
    color: var(--white);
    text-align: center;
    padding: 30px 0;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .store-buttons {
        justify-content: center;
    }

    .mockup-img {
        max-width: 300px;
        transform: none;
    }
}