@charset "UTF-8";

:root {
    --color-primary: oklch(0.41 0.04 165.4);
    --color-bg: #ffffff;
    --color-muted-bg: #f5f5f7;
    --color-text: #333333;
    --color-link: #1D94D4;
    --container-max: 1200px;
    --space-sm: 12px;
    --space-md: 20px;
    --space-lg: 32px;
    --header-sm-height: 52px;
    --header-height: 56px;
    --breakpoint-md: 864px;
}

/* Base typography */
html {
    box-sizing: border-box;
}
*, *::before, *::after {
    box-sizing: inherit;
}
body {
    position: relative;
    margin: 0;
    padding-top: var(--header-height);
    color: var(--color-text);
    background: var(--color-bg);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
    line-height: 1.7;
    @media (width <=864px) {
        padding-top: var(--header-sm-height);
    }
}

/* footerをbottomに固定する処理 */
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    footer {
        margin-top: auto;
    }
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1, h2, h3 {
    margin: 0 0 var(--space-md);
    line-height: 1.2;
}
p {
    margin: 0 0 var(--space-md);
}
a {
    color: var(--color-primary);
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
ul, ol {
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Layout utilities */
.page-head-image {
    width: 100%;
    aspect-ratio: 16 / 3;
    background-size: cover;
    background-position: center;
}

.container-wrapper {
    scroll-margin-top: var(--header-height);
    width: 100%;

    .container {
        width: 100%;
        max-width: var(--container-max);
        margin-inline: auto;
        padding: var(--space-lg) calc(var(--space-md) + 2rem) var(--space-lg) var(--space-md);
        @media (width <=864px) {
            padding: var(--space-lg) var(--space-md);
        }
    }

    .content-header {
        display: flex;
        align-items: flex-end;
        gap: 16px;
        margin-bottom: var(--space-lg);
        .header-label, p {
            margin: 0;
        }
        .header-label {
            font-size: 1.5em;
            writing-mode: vertical-rl;
            text-orientation: upright;
            letter-spacing: 0.08em;
            font-weight: 600;
            color: #666;
            border-right: 2px solid #ddd;
            padding-right: 8px;
        }

        p {
            font-size: 2rem;
        }
        @media (width <=864px) {
            flex-direction: column;
            align-items: flex-start;
            gap: 0px;
            .header-label {
                writing-mode: unset;
            }
        }
    }
}

.button-link {
    display: inline-block;
    padding: 10px 16px;
    border-radius: 8px;
    background: var(--color-primary);
    color: #fff;
    transition: .3s;
    &:hover {
        text-decoration: none;
        background: oklch(from var(--color-primary) calc(l + 0.2) c h);
    }
}
.button--secondary {
    background: #ffffff;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}


.social-links {
    display: flex;
    margin: 0;
    padding: 0;
    gap: var(--space-sm);
    li {
        display: flex;
        align-items: center;
        a {
            display: flex;
            svg {
                width: 24px;
                height: 24px;
                header & {
                    fill: var(--color-primary);
                }
                footer & {
                    fill: var(--color-bg);
                }
            }
        }
    }
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid #e5e5ea;
    z-index: 1000;

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: var(--header-height);
        padding: 16px;
        @media (width <=864px) {
            height: var(--header-sm-height);
            padding: 12px 16px;
            gap: var(--space-sm);
        }
    }
    .brand {
        margin: 0;
        display: flex;
        padding-left: 16px;
        .brand-link {
            display: flex;
            svg, img {
                width: 120px;
                height: auto;
                fill: #000;
            }
        }
    }

    .primary-nav {
        display: flex;
        align-items: center;
        gap: var(--space-lg);

        .nav-list {
            display: flex;
            margin: 0;
            padding: 0;
            gap: var(--space-lg);
        }
        @media (width <=864px) {
            position: fixed;
            top: var(--header-sm-height);
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid #e5e5ea;
            flex-direction: column;
            align-items: stretch;
            gap: 0;
            transform: translateX(120%);
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s ease;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            max-height: calc(100vh - var(--header-sm-height));
            overflow-y: auto;
            &.is-open {
                transform: translateX(0);
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
            }

            .nav-list {
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 0;
            }

            .nav-list li {
                width: 100%;
                border-top: 1px solid #f0f0f0;
            }

            a {
                display: block;
                padding: 14px 20px;
                width: 100%;
            }

            .social-links li a {
                display: flex;
                align-items: center;
                gap: 12px;
                padding: 14px 20px;
            }

            .social-links img {
                width: 24px;
                height: auto;
            }
        }
    }
}

.nav-toggle {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 10px;
    background: #fff;
    border: 1px solid #e5e5ea;
    border-radius: 8px;
    cursor: pointer;
    @media (width <=864px) {
        display: inline-flex;
    }
}

.side-label {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    padding: calc(var(--header-height) + var(--space-lg) - 1px) 0 var(--space-lg) 0;
    background-color: #fff;
    z-index: 900;
    transition: .3s;
    &:hover {
        background-color: #c7c7c7;
    }
    @media (width <=864px) {
        display: none;
    }
    a {
        writing-mode: vertical-rl;
        text-orientation: upright;
        letter-spacing: 0.08em;
        font-weight: 600;
        color: #666;
        padding-right: 8px;
        &:hover {
            color: #fff;
            text-decoration: none;
        }
    }
}

/* Footer */
.site-footer {
    display: flex;
    background-color: var(--color-primary);
    padding: var(--space-lg) 0;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);

    .footer-logo {
        margin: 0;
        display: flex;
        svg {
            width: 160px;
            height: auto;
            fill: #fff;
        }
    }
    .footer-nav {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-lg);
        margin: 0;
        padding: 0;
        li a {
            color: #fff;
        }
        @media (width <=864px) {
            width: 100%;
            flex-direction: column;
            gap: 4px;
            padding-left: 16px;
        }
    }
    .social-links {
        @media (width <=864px) {
            width: 100%;
            padding-left: 16px;
        }
    }
}
.site-footer small {
    color: #fff;
}

/* Overflow fallback (avoid clip) */
.clip-container {
    overflow: hidden;
}