/* Copyright 2026 Gwang-Jin Kim. SPDX-License-Identifier: AGPL-3.0-only */
:root {
    font-family: system-ui, -apple-system, sans-serif;
    color: #153c34;
    background: #f6f5ef;
    line-height: 1.65;
    color-scheme: light;
}
* {
    box-sizing: border-box;
}
body {
    margin: 0;
}
header,
main,
footer {
    max-width: 900px;
    margin: auto;
    padding: 28px;
}
header {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    border-bottom: 1px solid #d5ded6;
}
a {
    color: #17664e;
    text-underline-offset: 4px;
}
header a {
    font-weight: 650;
    text-decoration: none;
}
h1 {
    font-size: clamp(2.3rem, 6vw, 4.2rem);
    line-height: 1.1;
    letter-spacing: -0.045em;
    margin: 18px 0 26px;
}
.eyebrow {
    font-size: 0.76rem;
    letter-spacing: 0.14em;
    font-weight: 700;
}
.intro {
    font-size: 1.2rem;
    color: #537168;
    margin-bottom: 48px;
}
section {
    padding: 24px 0;
    border-top: 1px solid #d5ded6;
}
h2 {
    font-size: 1.35rem;
    line-height: 1.3;
}
code {
    font-size: 0.91em;
    background: #e4ebe3;
    padding: 3px 7px;
    border-radius: 5px;
    overflow-wrap: anywhere;
}
.example {
    max-width: 540px;
    border-left: 4px solid #26775b;
    background: #edf0e8;
    padding: 20px 26px;
    border-radius: 0 14px 14px 0;
}
.example p {
    margin: 4px 0 18px;
}
.example p:last-child {
    margin-bottom: 0;
}
.example small {
    font-weight: 600;
    color: #557065;
}
dt {
    margin-top: 18px;
}
dd {
    margin: 6px 0 0;
}
.note {
    color: #587069;
    font-size: 0.93rem;
}
footer {
    padding-bottom: 60px;
}
@media (max-width: 520px) {
    header,
    main,
    footer {
        padding: 22px;
    }
    header {
        font-size: 0.88rem;
    }
}