/* ==========================================================================
   Base
   リセット・タイポグラフィ・基本要素
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--tf-font-sans);
    font-size: 15px;
    line-height: 1.9;
    color: var(--tf-text-primary);
    background-color: var(--tf-ivory);
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--tf-transition), opacity var(--tf-transition);
}

ul,
ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

h1,
h2,
h3,
h4 {
    margin: 0;
    font-family: var(--tf-font-serif);
    font-weight: 500;
    letter-spacing: 0.02em;
    line-height: 1.5;
}

p {
    margin: 0;
}

button {
    font-family: inherit;
    cursor: pointer;
}

dl,
dd {
    margin: 0;
}

fieldset {
    border: none;
    margin: 0;
    padding: 0;
}

legend {
    padding: 0;
    font-family: var(--tf-font-sans);
    font-size: 0.8em;
    letter-spacing: 0.08em;
    color: var(--tf-text-secondary);
    margin-bottom: var(--tf-space-xs);
}

select,
input[type="checkbox"],
input[type="radio"] {
    font-family: inherit;
    font-size: inherit;
}

select {
    padding: 8px 12px;
    border: 1px solid var(--tf-border);
    border-radius: var(--tf-radius);
    background-color: var(--tf-surface);
    color: var(--tf-text-primary);
}