:root {
    --bg: #f6f7f9;
    --card: #ffffff;
    --ink: #1a1d21;
    --muted: #6b7280;
    --line: #e3e6ea;
    --accent: #1f6feb;
    --ok: #157347;
    --warn: #b45309;
    --danger: #b42318;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #14171a;
        --card: #1c2024;
        --ink: #e8eaed;
        --muted: #9aa4b2;
        --line: #2c3238;
        --accent: #58a6ff;
        --ok: #3fb950;
        --warn: #d29922;
        --danger: #f85149;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font: 15px/1.5 -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--ink);
}

.top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: .8rem 1.5rem;
    background: var(--card);
    border-bottom: 1px solid var(--line);
    flex-wrap: wrap;
}

.brand { font-weight: 600; text-decoration: none; color: var(--ink); }
.brand span { color: var(--muted); font-weight: 400; }

nav { display: flex; align-items: center; gap: 1.2rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--accent); }

main { max-width: 1100px; margin: 1.5rem auto; padding: 0 1.5rem; }

footer {
    max-width: 1100px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    color: var(--muted);
    font-size: .85rem;
}

h1 { font-size: 1.5rem; margin: 0 0 .3rem; }
h2 { font-size: 1.1rem; margin: 2rem 0 .6rem; }
.sub { color: var(--muted); margin: 0 0 1.5rem; }

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 1.2rem;
    margin-bottom: 1.2rem;
}

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .55rem .6rem; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 500; font-size: .85rem; }
tbody tr:last-child td { border-bottom: none; }

.wrap { overflow-x: auto; }

code, .mono {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: .88em;
}

.tag {
    display: inline-block;
    padding: .1rem .5rem;
    border-radius: 999px;
    font-size: .78rem;
    border: 1px solid var(--line);
    color: var(--muted);
}

.tag.ok { color: var(--ok); border-color: currentColor; }
.tag.warn { color: var(--warn); border-color: currentColor; }
.tag.danger { color: var(--danger); border-color: currentColor; }

input, select, textarea {
    font: inherit;
    padding: .45rem .6rem;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--bg);
    color: var(--ink);
    width: 100%;
}

label { display: block; margin-bottom: .8rem; }
label span { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .2rem; }

.row { display: flex; gap: 1rem; flex-wrap: wrap; }
.row > * { flex: 1 1 180px; }

button {
    font: inherit;
    padding: .45rem .9rem;
    border-radius: 6px;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #fff;
    cursor: pointer;
}

button.secondary { background: transparent; color: var(--accent); }
button.danger { background: transparent; color: var(--danger); border-color: var(--danger); }
button.link { background: none; border: none; color: var(--muted); padding: 0; cursor: pointer; }
button.link:hover { color: var(--accent); }

form.inline { display: inline; }

.flash { padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1.2rem; border: 1px solid; }
.flash.ok { color: var(--ok); border-color: currentColor; }
.flash.error { color: var(--danger); border-color: currentColor; }

.code-box {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 1.4rem;
    letter-spacing: .08em;
    padding: .8rem 1rem;
    background: var(--bg);
    border: 1px dashed var(--accent);
    border-radius: 8px;
    display: inline-block;
}

.login { max-width: 340px; margin: 4rem auto; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.right { text-align: right; }