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

:root {
    --primary: #ff6b6b;
    --secondary: #4ecdc4;
    --dark: #2c3e50;
    --light: #f8f9fa;
    --gray: #95a5a6;
    --white: #ffffff;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-4: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
}

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

/* Header */
.header {
    background: var(--white);
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s;
}

.nav a:hover {
    color: var(--primary);
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 100px 0;
    text-align: center;
    color: var(--white);
}

.hero-title {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: bold;
}

.hero-subtitle {
    font-size: 20px;
    opacity: 0.95;
}

/* Features */
.features {
    padding: 80px 0;
    background: var(--light);
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--dark);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray);
    line-height: 1.6;
}

/* Templates */
.templates {
    padding: 80px 0;
}

.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.template-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.template-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.template-preview {
    height: 200px;
    position: relative;
    overflow: hidden;
}

.template-preview.minimal {
    background: linear-gradient(45deg, #f0f0f0 25%, transparent 25%, transparent 75%, #f0f0f0 75%, #f0f0f0),
                linear-gradient(45deg, #f0f0f0 25%, transparent 25%, transparent 75%, #f0f0f0 75%, #f0f0f0);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
}

.template-preview.artistic {
    background: var(--gradient-2);
}

.template-preview.business {
    background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
}

.template-preview.seasonal {
    background: var(--gradient-4);
}

.template-preview.photo {
    background: var(--gradient-3);
}

.template-preview.kids {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.template-card h3 {
    padding: 20px 20px 10px;
    font-size: 20px;
    color: var(--dark);
}

.template-card p {
    padding: 0 20px 20px;
    color: var(--gray);
}

/* Creators */
.creators {
    padding: 80px 0;
    background: var(--light);
}

.creator-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.creator-feature {
    text-align: center;
}

.creator-feature h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--dark);
}

.creator-feature .highlight {
    font-size: 28px;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 10px;
}

.creator-feature p {
    color: var(--gray);
}

/* How it works */
.how-it-works {
    padding: 80px 0;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 24px;
    font-weight: bold;
}

.step h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--dark);
}

.step p {
    color: var(--gray);
}

/* Formats */
.formats {
    padding: 80px 0;
    background: var(--light);
}

.format-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.format-item {
    background: var(--white);
    padding: 20px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: transform 0.3s;
}

.format-item:hover {
    transform: translateY(-3px);
}

.format-icon {
    background: var(--gradient-1);
    color: var(--white);
    padding: 8px 12px;
    border-radius: 5px;
    font-weight: bold;
    font-size: 14px;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-logo {
    font-size: 24px;
    margin-bottom: 10px;
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
}

.footer-info {
    text-align: right;
}

.footer-info p {
    color: rgba(255,255,255,0.7);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.5);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .nav {
        gap: 20px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .feature-grid,
    .template-grid,
    .creator-features,
    .steps {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-info {
        text-align: center;
    }
}