/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #333;
    background: url('images/background.jpg') center center/cover no-repeat fixed;
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    z-index: -1;
}

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

/* Header */
.header {
    text-align: center;
    padding: 40px 0;
    margin-bottom: 40px;
}

.logo-container {
    margin-bottom: 20px;
}

.logo {
    max-width: 400px;
    height: auto;
}

.main-title {
    font-size: 2rem;
    font-weight: 400;
    color: #333;
    margin: 0;
}

/* Main content */
.main-content {
    padding: 0;
}

/* Hero section */
.hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: left;
    padding: 40px 20px;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 300;
    color: #333;
    margin-bottom: 30px;
}

.opening-info {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
}

.opening-title {
    font-size: 1.5rem;
    font-weight: 400;
    color: #333;
    margin-bottom: 25px;
    line-height: 1.4;
}

.opening-description {
    font-size: 1.1rem;
    color: #333;
    line-height: 1.8;
    margin-bottom: 0;
}

/* Kanban section */
.kanban-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 50px 20px;
    margin-top: 40px;
}

.kanban-container {
    max-width: 900px;
    margin: 0 auto;
}

.kanban-image {
    max-width: 100%;
    height: auto;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 0;
    margin-top: 40px;
}

.footer p {
    color: #666;
    font-size: 0.9rem;
}

/* Responsive design */
@media (max-width: 1200px) {
    .container {
        max-width: 95%;
    }
    
    .logo {
        max-width: 350px;
    }
}

@media (max-width: 992px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .opening-title {
        font-size: 1.4rem;
    }
    
    .logo {
        max-width: 320px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .header {
        padding: 25px 0;
    }
    
    .hero-section {
        padding: 35px 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .opening-title {
        font-size: 1.3rem;
    }
    
    .opening-description {
        font-size: 1rem;
    }
    
    .kanban-section {
        padding: 30px 15px;
    }
    
    .logo {
        max-width: 300px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    .header {
        padding: 20px 0;
    }
    
    .hero-section {
        padding: 30px 10px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .opening-title {
        font-size: 1.2rem;
    }
    
    .opening-description {
        font-size: 0.95rem;
    }
    
    .kanban-section {
        padding: 25px 10px;
    }
    
    .logo {
        max-width: 280px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .header {
        padding: 15px 0;
    }
    
    .hero-section {
        padding: 25px 8px;
    }
    
    .hero-title {
        font-size: 1.6rem;
    }
    
    .opening-title {
        font-size: 1.1rem;
    }
    
    .opening-description {
        font-size: 0.9rem;
    }
    
    .kanban-section {
        padding: 20px 8px;
    }
    
    .logo {
        max-width: 250px;
    }
}

@media (max-width: 360px) {
    .container {
        padding: 0 8px;
    }
    
    .header {
        padding: 12px 0;
    }
    
    .hero-section {
        padding: 20px 5px;
    }
    
    .hero-title {
        font-size: 1.4rem;
    }
    
    .opening-title {
        font-size: 1rem;
    }
    
    .opening-description {
        font-size: 0.85rem;
    }
    
    .kanban-section {
        padding: 15px 5px;
    }
    
    .logo {
        max-width: 220px;
    }
}

/* 横画面（ランドスケープ）対応 */
@media (max-height: 500px) and (orientation: landscape) {
    .header {
        padding: 15px 0;
    }
    
    .hero-section {
        padding: 20px 15px;
    }
    
    .kanban-section {
        padding: 15px 15px;
    }
    
    .logo {
        max-width: 200px;
    }
}

/* 高解像度ディスプレイ対応 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo, .kanban-image {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}