/* ========================================
   Rakuten-Trender Landing Page
   ======================================== */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Header */
.header {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #667eea;
}

.btn-login {
    padding: 10px 25px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: background 0.3s;
}

.btn-login:hover {
    background: #5a6fd6;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding: 100px 20px 60px;
}

.hero-content h1 {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.hero-desc {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2.5rem;
}

.btn-cta {
    display: inline-block;
    padding: 18px 50px;
    background: white;
    color: #667eea;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    font-size: 1.1rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-cta:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

/* Features */
.features {
    padding: 80px 20px;
    background: #f8f9fa;
}

.features-inner {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.feature {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #333;
}

.feature p {
    color: #666;
}

/* Footer */
.footer {
    background: #333;
    color: #aaa;
    text-align: center;
    padding: 30px 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    .hero-desc {
        font-size: 1rem;
    }
}