:root {
    --bg: #f5f6f8;
    --surface: #ffffff;
    --text: #1d2330;
    --muted: #6b7385;
    --border: #e1e4ea;
    --primary: #2f6fdb;
    --primary-text: #ffffff;
    --danger: #c93a3a;
    --success-bg: #e7f6ec;
    --success-border: #9fd8b1;
    --error-bg: #fdecec;
    --error-border: #f0b4b4;
    --info-bg: #eaf1fd;
    --info-border: #b7cdf3;
    --code-bg: #f0f2f5;
    --radius: 8px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #14171d;
        --surface: #1c2028;
        --text: #e4e7ee;
        --muted: #949cad;
        --border: #2d3340;
        --primary: #5b8ff0;
        --primary-text: #0d1117;
        --danger: #ef6b6b;
        --success-bg: #173322;
        --success-border: #2d6b45;
        --error-bg: #3a1c1c;
        --error-border: #7a3333;
        --info-bg: #172440;
        --info-border: #2f4f8a;
        --code-bg: #262b35;
    }
}

* { box-sizing: border-box; }

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

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1 { font-size: 1.6rem; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 0 0 1rem; }
h3 { font-size: 1rem; margin: 1.25rem 0 .5rem; }

code, pre {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: .9em;
}

code { background: var(--code-bg); padding: .1em .35em; border-radius: 4px; word-break: break-all; }
pre { background: var(--code-bg); padding: .75rem 1rem; border-radius: var(--radius); overflow-x: auto; }
pre code { background: none; padding: 0; }

.wrap { max-width: 1000px; margin: 0 auto; padding: 0 16px; }

.topbar { background: var(--surface); border-bottom: 1px solid var(--border); margin-bottom: 2rem; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 56px; flex-wrap: wrap; }
.brand { font-weight: 700; color: var(--text); }
.brand .muted { font-weight: 400; margin-left: .35rem; }
nav { display: flex; align-items: center; gap: 1.25rem; }
nav form { margin: 0; }

.muted { color: var(--muted); }
.small { font-size: .85rem; }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
}
.card.narrow { max-width: 380px; margin: 3rem auto; }
.card.empty { text-align: center; padding: 3rem 1rem; }
.table-card { padding: 0; overflow-x: auto; }
.table-card > h2 { padding: 1.25rem 1.5rem 0; margin-bottom: .5rem; }
.table-card > p { padding: 0 1.5rem 1.25rem; margin: 0; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 0 1.5rem; }

.page-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; flex-wrap: wrap; }
.page-header p { margin: -.75rem 0 1rem; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .8rem 1.5rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
tbody tr:last-child td { border-bottom: 0; }

label { display: block; margin-bottom: 1rem; font-weight: 500; }
label.check { display: flex; align-items: center; gap: .5rem; font-weight: 400; margin-bottom: .5rem; }
fieldset { border: 0; padding: 0; margin: 0 0 1rem; }
legend { font-weight: 500; margin-bottom: .5rem; padding: 0; }

input:not([type=checkbox]) {
    display: block;
    width: 100%;
    margin-top: .3rem;
    padding: .5rem .65rem;
    font: inherit;
    color: var(--text);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
}
input:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
input[type=checkbox] { width: 1.05rem; height: 1.05rem; accent-color: var(--primary); }

.input-suffix { display: flex; align-items: stretch; margin-top: .3rem; }
.input-suffix input { margin-top: 0; border-radius: 6px 0 0 6px; }
.input-suffix span {
    display: flex; align-items: center; padding: 0 .65rem;
    background: var(--code-bg); border: 1px solid var(--border); border-left: 0;
    border-radius: 0 6px 6px 0; color: var(--muted); white-space: nowrap; font-weight: 400;
}

button, .button {
    display: inline-block;
    padding: .5rem 1rem;
    font: inherit;
    font-weight: 500;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    white-space: nowrap;
}
button:hover, .button:hover { border-color: var(--muted); text-decoration: none; }
button.primary, .button.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
button.danger { color: var(--danger); border-color: var(--danger); }
button.link { background: none; border: 0; padding: 0; color: var(--primary); font-weight: 400; }
button.link:hover { text-decoration: underline; }

form.inline { display: flex; gap: .5rem; margin: 0; }
form.inline input { margin-top: 0; }

.address-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: .5rem;
    padding: .75rem 0;
    border-bottom: 1px solid var(--border);
}
.address-row:first-of-type { padding-top: 0; }
.address-row:last-of-type { border-bottom: 0; padding-bottom: 0; }

.badge {
    display: inline-block; padding: .1rem .5rem; border-radius: 999px;
    font-size: .8rem; background: var(--code-bg); color: var(--muted);
}
.badge.off { opacity: .7; }

.alert {
    padding: .75rem 1rem; margin-bottom: 1.5rem; border-radius: var(--radius);
    background: var(--info-bg); border: 1px solid var(--info-border);
}
.alert.success { background: var(--success-bg); border-color: var(--success-border); }
.alert.error { background: var(--error-bg); border-color: var(--error-border); }
.alert.error:empty, .validation-summary-valid { display: none; }
.alert ul { margin: 0; padding-left: 1.2rem; }
.token { font-size: 1rem; user-select: all; }

dl.config { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1rem; margin: 0; }
dl.config dt { color: var(--muted); }
dl.config dd { margin: 0; }

.actions { display: flex; gap: .75rem; flex-wrap: wrap; }
.actions form { margin: 0; }

@media (max-width: 600px) {
    th, td { padding: .7rem 1rem; }
    .card { padding: 1rem; }
    dl.config { grid-template-columns: 1fr; }
    dl.config dd { margin-bottom: .5rem; }
}