:root {
    --bg-color: #f4f1ea;
    --card-bg-color: #e8e2d8;
    --primary-text-color: #4a3f35;
    --gold-accent-color: #8b7355;
    --border-color: #c3b8a5;
    --shadow-color: rgba(0, 0, 0, 0.2);
    --font-main: 'Noto Serif JP', serif;
    --font-display: 'Cinzel', serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--primary-text-color);
    line-height: 1.6;
    background-image: url('https://www.transparenttextures.com/patterns/subtle-dark-vertical.png');
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.site-header {
    text-align: center;
    padding: 2rem 0;
    background-color: #c5b8a5;
    border-bottom: 5px solid #8b7355;
}

.site-logo {
    max-width: 100%;
    height: auto;
    max-height: 250px;
    margin: 0 auto 1rem;
}

.site-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    color: #4a3f35;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.welcome-container {
    background-color: #e8e2d8;
    border: 2px solid #c3b8a5;
    padding: 2rem;
    margin-bottom: 3rem;
    text-align: center;
    border-radius: 4px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.welcome-message {
    font-size: 1.5rem;
    color: #4a3f35;
    font-weight: bold;
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.work-card {
    background-color: var(--card-bg-color);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 6px 12px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.work-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px var(--shadow-color);
}

.card-image-link {
    display: block;
    overflow: hidden;
}

.card-image {
    width: 100%;
    height: 350px; /* 高さを350pxに変更 */
    object-fit: contain;
    transition: transform 0.3s ease;
}

.work-card:hover .card-image {
    transform: scale(1.05);
}

.card-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gold-accent-color);
    margin-bottom: 0.5rem;
}

.card-detail {
    font-size: 1rem;
    margin-bottom: 1rem;
    flex-grow: 1;
}

.card-action {
    display: block;
    background-color: var(--gold-accent-color);
    color: #fff;
    text-align: center;
    padding: 0.75rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease;
    cursor: pointer;
    border-bottom: 3px solid #6d5a44;
}

.card-action:hover {
    background-color: #c5a233;
}

.site-footer {
    width: 100%;
    background-color: var(--primary-text-color);
    color: #fff;
    text-align: center;
    padding: 1rem 0;
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 1000;
}

.modal-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--card-bg-color);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--gold-accent-color);
    width: 90%;
    max-width: 400px;
    text-align: center;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.visible .modal-content {
    transform: scale(1);
}

.modal-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--gold-accent-color);
}

.modal-input {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--primary-text-color);
    font-size: 1rem;
}

.modal-actions {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.modal-btn {
    flex: 1;
    padding: 0.75rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.modal-btn.primary {
    background-color: var(--gold-accent-color);
    color: var(--bg-color);
}
.modal-btn.primary:hover {
    background-color: #c5a233;
}

.modal-btn.secondary {
    background-color: #b0a491;
    color: #fff;
}
.modal-btn.secondary:hover {
    background-color: #9a8f7e;
}

/* Add some responsive design adjustments */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .site-title {
        font-size: 2rem;
    }

    .site-logo {
        max-width: 300px;
    }

    .works-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .card-content {
        padding: 1rem;
    }

    .card-title {
        font-size: 1.25rem;
    }

    .modal-content {
        padding: 1.5rem;
    }
}

/* 404 Error Page Styles */
#error-page {
    text-align: center;
    padding: 4rem 2rem;
    background-color: var(--card-bg-color);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    box-shadow: 0 6px 12px var(--shadow-color);
    margin: 2rem auto;
    max-width: 600px;
}

#error-page h1 {
    font-size: 3rem;
    color: var(--gold-accent-color);
    margin-bottom: 1rem;
}

#error-page p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

#error-page a {
    display: inline-block;
    background-color: var(--gold-accent-color);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease;
    border-bottom: 3px solid #6d5a44;
}

#error-page a:hover {
    background-color: #c5a233;
}