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

html {
    font-size: 16px;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: #ffffff;
    color: #000000;
    line-height: 1.8;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    width: 100%;
    background-color: #ffffff;
    border-bottom: 1px solid #000000;
    padding: 16px 0;
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 24px;
}

.logo-image {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.site-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: #000000;
    letter-spacing: 0.05em;
}

/* Main Content */
.content {
    flex: 1;
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    padding: 48px 24px;
}

article {
    width: 100%;
}

h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #000000;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 2px solid #000000;
    letter-spacing: 0.02em;
}

.profile p {
    margin-bottom: 24px;
    text-align: justify;
    text-justify: inter-ideograph;
}

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

.award {
    font-weight: 700;
}

/* Signature */
.signature {
    display: flex;
    justify-content: flex-end;
    margin-top: 40px;
}

.signature img {
    width: 180px;
    height: auto;
}

/* Footer */
footer {
    width: 100%;
    background-color: #ffffff;
    border-top: 1px solid #000000;
    padding: 24px 0;
    text-align: center;
}

footer small {
    font-size: 0.75rem;
    color: #000000;
    letter-spacing: 0.05em;
}

/* Responsive */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .header-inner {
        padding: 0 16px;
    }

    .logo-image {
        width: 32px;
        height: 32px;
    }

    .site-name {
        font-size: 1.1rem;
    }

    .content {
        padding: 32px 16px;
    }

    h1 {
        font-size: 1.25rem;
        margin-bottom: 24px;
        padding-bottom: 12px;
    }

    .profile p {
        margin-bottom: 20px;
    }

    .signature img {
        width: 150px;
    }

    footer {
        padding: 20px 0;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }

    .header-inner {
        padding: 0 12px;
        gap: 10px;
    }

    .content {
        padding: 24px 12px;
    }

    h1 {
        font-size: 1.15rem;
    }
}