/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: #ffffff;
    color: #333333;
    line-height: 1.6;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 1rem;
}

/* Header Section */
.header {
    text-align: center;
    margin-bottom: 3rem;
    space: 1.5rem;
}

.logo-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.logo {
    height: 100px;
    width: auto;
    object-fit: contain;
}

.header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1a1a1a;
    letter-spacing: 0.02em;
}

.header .date {
    font-size: 0.95rem;
    color: #666666;
}

/* Main Card */
.main-card {
    background-color: #f9f9f9;
    border: 1px solid #e5e5e5;
    border-radius: 0.5rem;
    margin-bottom: 2rem;
    overflow: hidden;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e5e5e5;
}

.card-header p {
    margin: 0;
}

.card-content {
    padding: 1.5rem;
    space: 1.5rem;
}

.card-content p {
    margin-bottom: 1.5rem;
    color: #555555;
    line-height: 1.8;
}

.card-content p:last-child {
    margin-bottom: 0;
}

.highlight {
    font-weight: 700;
    color: #d32f2f;
}

.closure-info {
    background-color: #f0f0f0;
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid #d5d5d5;
    text-align: center;
    margin-top: 2rem;
}

.closure-info h2 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: #1a1a1a;
}

.closure-date {
    font-size: 1.25rem;
    color: #333333;
    margin: 0;
}

/* Separator */
.separator {
    border: none;
    border-top: 1px solid #d5d5d5;
    margin: 2rem 0;
}

/* Service Section */
.service-section {
    margin-bottom: 2rem;
}

.section-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    padding-left: 1rem;
    border-left: 4px solid #1a1a1a;
    color: #1a1a1a;
}

.section-intro {
    color: #666666;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* Accordion */
.accordion {
    space: 1rem;
}

.accordion-item {
    border: 1px solid #d5d5d5;
    border-radius: 0.5rem;
    background-color: #ffffff;
    margin-bottom: 1rem;
    overflow: hidden;
}

.accordion-trigger {
    width: 100%;
    padding: 1rem;
    background-color: #ffffff;
    border: none;
    text-align: left;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #1a1a1a;
    transition: background-color 0.2s ease;
}

.accordion-trigger:hover {
    background-color: #f5f5f5;
}

/*
.accordion-trigger:focus {
    outline: 2px solid #1a1a1a;
    outline-offset: -2px;
}
*/

.accordion-icon {
    display: inline-block;
    font-size: 0.9rem;
    color: #1a1a1a;
    transition: transform 0.2s ease;
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    background-color: #fafafa;
    padding: 0 1rem;
}

.accordion-item.active .accordion-content {
    max-height: 2000px;
    padding: 1rem;
}

.accordion-content p {
    margin-bottom: 1rem;
    color: #555555;
    line-height: 1.8;
}

.accordion-content p:last-child {
    margin-bottom: 0;
}

.info-box {
    background-color: #f0f0f0;
    padding: 1rem;
    border-radius: 0.375rem;
    font-size: 0.9rem;
    margin: 1rem 0;
}

.info-box p {
    margin-bottom: 0.5rem;
}

.info-box p:last-child {
    margin-bottom: 0;
}

.font-bold {
    font-weight: 700;
}

.small-text {
    font-size: 0.9rem;
    color: #777777;
}

.italic {
    font-style: italic;
}

/* Footer Message */
.footer-message {
    text-align: center;
    space: 1.5rem;
    padding-bottom: 2rem;
}

.footer-message p {
    margin-bottom: 1.5rem;
    color: #555555;
    line-height: 1.8;
}

.footer-message p:last-child {
    margin-bottom: 0;
}

.closing {
    font-weight: 600;
    font-size: 1.05rem;
    color: #1a1a1a;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 2rem 1rem;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .logo {
        height: 80px;
    }

    .section-title {
        font-size: 1.1rem;
    }

    .accordion-trigger {
        font-size: 1rem;
        padding: 0.875rem;
    }

    .closure-info {
        padding: 1rem;
    }

    .closure-date {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1.5rem 0.75rem;
    }

    .header h1 {
        font-size: 1.25rem;
    }

    .logo {
        height: 70px;
    }

    .header .date {
        font-size: 0.9rem;
    }

    .card-header,
    .card-content {
        padding: 1rem;
    }

    .section-title {
        font-size: 1rem;
        padding-left: 0.75rem;
    }

    .accordion-trigger {
        font-size: 0.95rem;
        padding: 0.75rem;
    }

    .accordion-content {
        padding: 0 0.75rem;
    }

    .accordion-item.active .accordion-content {
        padding: 0.75rem;
    }
}