:root {
    --bg: #f7f3ea;
    --panel: rgba(255, 255, 255, 0.9);
    --text: #1d1a17;
    --muted: #5d5851;
    --line: #d8cfc0;
    --accent: #8b4d26;
    --accent-soft: #f2e3d6;
    --max: 960px;
    --redirect-max: 760px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(
            circle at top left,
            rgba(139, 77, 38, 0.08),
            transparent 28rem
        ),
        linear-gradient(180deg, #f8f4ec 0%, #f4efe5 100%);
}

body.landing-page {
    font-family: Georgia, "Times New Roman", serif;
}

body.landing-page.lang-ja {
    font-family: "Hiragino Mincho ProN", "Yu Mincho", "Times New Roman", serif;
}

body.redirect-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    font-family: Georgia, "Times New Roman", serif;
}

a {
    color: var(--accent);
}

.page {
    max-width: var(--max);
    margin: 0 auto;
    padding: 32px 20px 56px;
}

.redirect-card {
    width: min(100%, var(--redirect-max));
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.9);
}

.hero {
    padding: 32px 0 24px;
    border-bottom: 1px solid var(--line);
}

.lang-nav {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    color: var(--muted);
    font-size: 0.95rem;
}

h1,
h2 {
    font-weight: 600;
}

h1 {
    margin: 0 0 14px;
    line-height: 1.05;
}

h2 {
    margin: 0 0 12px;
    font-size: 1.45rem;
    line-height: 1.15;
}

.brand-mark {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 0.5rem 0.9rem;
}

.brand-mark .brand-logo {
    width: clamp(4.2rem, 9vw, 7rem);
    height: auto;
    flex: 0 0 auto;
    display: block;
}

.brand-mark .expanded {
    font-size: clamp(1rem, 2vw, 1.28rem);
    font-weight: 400;
    letter-spacing: 0.015em;
    color: var(--muted);
    line-height: 1.25;
    padding-bottom: 0.5rem;
}

.tagline {
    margin: 0 0 14px;
    font-size: clamp(1.2rem, 2.8vw, 1.72rem);
    font-weight: 500;
    line-height: 1.42;
    max-width: 60rem;
}

.lead {
    max-width: 52rem;
    margin: 0;
    font-size: 1.03rem;
    line-height: 1.8;
}

.grid {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    margin-top: 28px;
}

.card {
    padding: 18px 18px 16px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--panel);
    box-shadow: 0 10px 30px rgba(29, 26, 23, 0.04);
}

.card p,
.section p,
.section li,
.redirect-card p {
    line-height: 1.8;
}

.concept-title {
    margin: 0 0 12px;
}

.concept-title .concept-term {
    display: block;
    font-size: 1.18rem;
    font-weight: 600;
    line-height: 1.2;
}

.concept-title .concept-translation {
    display: block;
    margin-top: 0.24rem;
    font-size: 0.96rem;
    font-weight: 400;
    color: var(--muted);
    line-height: 1.35;
}

.section {
    margin-top: 34px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
}

.hero + .section {
    margin-top: 28px;
    padding-top: 0;
    border-top: 0;
}

.pill-row,
.links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.pill {
    display: inline-flex;
    align-items: center;
    min-height: 2.2rem;
    padding: 0 0.85rem;
    border-radius: 999px;
    border: 1px solid rgba(139, 77, 38, 0.18);
    background: var(--accent-soft);
    color: var(--accent);
    text-decoration: none;
}

ul {
    padding-left: 1.2rem;
}

footer {
    margin-top: 40px;
    color: var(--muted);
    font-size: 0.95rem;
}

.meta {
    color: var(--muted);
    font-size: 0.95rem;
}

@media (max-width: 640px) {
    .page {
        padding: 24px 16px 44px;
    }

    .hero {
        padding-top: 20px;
    }

    .brand-mark {
        flex-direction: row;
        gap: 0.5rem 0.8rem;
        align-items: flex-start;
    }

    .brand-mark .brand-logo {
        width: clamp(3.8rem, 14vw, 5.4rem);
    }
}