:root {
    --wood-light: #f4ede3;
    --wood-base: #dbc3a3;
    --wood-mid: #a67c52;
    --wood-dark: #5f4630;
    --leaf-deep: #5d6f57;
    --leaf-soft: #7f9478;
    --text-main: #3f3125;
    --shadow-soft: rgba(70, 48, 29, 0.12);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    padding: 40px 24px 64px;
    font-family: "Hiragino Mincho ProN", "Yu Mincho", "MS PMincho", serif;
    color: var(--text-main);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0.15)),
        repeating-linear-gradient(
            0deg,
            rgba(166, 124, 82, 0.08) 0px,
            rgba(166, 124, 82, 0.08) 3px,
            rgba(255, 255, 255, 0.04) 3px,
            rgba(255, 255, 255, 0.04) 12px
        ),
        linear-gradient(135deg, var(--wood-light), #efe3d0 45%, #e3d1b8 100%);
    line-height: 1.8;
}

logotohome {
    display: block;
    width: fit-content;
    margin: 0 auto 28px;
}

logotohome a {
    display: inline-block;
    padding: 14px 18px;
    border: 1px solid rgba(95, 70, 48, 0.14);
    border-radius: 18px;
    background: rgba(255, 252, 247, 0.72);
    box-shadow: 0 10px 30px var(--shadow-soft);
    transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}

logotohome a:hover {
    transform: translateY(-2px);
    background: rgba(255, 252, 247, 0.92);
    box-shadow: 0 14px 34px rgba(70, 48, 29, 0.16);
}

logotohome img {
    display: block;
    max-width: min(180px, 42vw);
    height: auto;
}

h1 {
    width: min(720px, 100%);
    margin: 0 auto;
    padding: 22px 28px;
    border-left: 8px solid var(--wood-mid);
    border-radius: 16px;
    background: rgba(255, 249, 241, 0.78);
    box-shadow: 0 12px 28px var(--shadow-soft);
    color: var(--wood-dark);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-align: center;
}

body > :not(logotohome):not(h1) {
    width: min(720px, 100%);
    margin-left: auto;
    margin-right: auto;
}

a {
    color: var(--leaf-deep);
    text-decoration: none;
}

a:hover {
    color: var(--leaf-soft);
}

@media (max-width: 640px) {
    body {
        padding: 24px 16px 48px;
    }

    h1 {
        padding: 18px 16px;
        letter-spacing: 0.04em;
    }

    logotohome a {
        padding: 12px 14px;
        border-radius: 14px;
    }
}