:root {
    --ink: #1a1a1a;
    --paper: #ffffff;
    --muted: #6a6a6a;
    --line: #d8d8d8;
    --accent: #2f6f4f;
    --error: #a4323a;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font: 16px/1.5 system-ui, sans-serif;
    color: var(--ink);
    background: var(--paper);
    max-width: 900px;
    padding: 0 1rem 3rem;
}

.bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--line);
}

.brand {
    font-weight: 700;
    text-decoration: none;
    color: var(--ink);
}

nav {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-left: auto;
}

nav a,
nav button {
    color: var(--ink);
    text-decoration: none;
}

main {
    padding: 1.5rem 0;
}

footer {
    color: var(--muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--line);
    padding-top: 1rem;
}

h1 {
    font-size: 1.5rem;
    margin: 0 0 1rem;
}

h2 {
    font-size: 1.15rem;
    margin: 1.5rem 0 0.75rem;
}

h3 {
    font-size: 1rem;
    margin: 0 0 0.5rem;
}

p {
    margin: 0 0 0.75rem;
}

.note {
    color: var(--muted);
    font-size: 0.9rem;
}

code {
    font-family: ui-monospace, monospace;
    font-size: 0.9em;
    background: #f2f2f2;
    padding: 0.1rem 0.3rem;
    border-radius: 4px;
    overflow-wrap: anywhere;
}

label {
    display: block;
    margin: 0.5rem 0;
}

input,
select,
textarea,
button {
    font: inherit;
    padding: 0.4rem 0.5rem;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: var(--paper);
    color: var(--ink);
}

input[type='checkbox'] {
    width: auto;
}

textarea {
    width: 100%;
    min-height: 5rem;
}

button,
.button {
    display: inline-block;
    border: 1px solid var(--ink);
    background: var(--ink);
    color: var(--paper);
    padding: 0.45rem 0.8rem;
    border-radius: 4px;
    text-decoration: none;
    cursor: pointer;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

button.secondary {
    background: var(--paper);
    color: var(--ink);
}

form.inline {
    display: inline;
}

table {
    border-collapse: collapse;
    width: 100%;
    font-size: 0.92rem;
}

th,
td {
    border-bottom: 1px solid var(--line);
    text-align: left;
    padding: 0.35rem 0.5rem;
    vertical-align: top;
}

.pager {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
    margin: 0 0 0.75rem;
}

.pager a {
    color: var(--accent);
    text-decoration: none;
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 0.2rem 0.5rem;
}

.pager .current {
    font-weight: 700;
}

.card {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 1rem;
    margin: 0.75rem 0;
}

.flash {
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    border: 1px solid var(--line);
}

.flash-ok {
    border-color: var(--accent);
    color: var(--accent);
}

.flash-err {
    border-color: var(--error);
    color: var(--error);
}

.result {
    min-height: 1.5rem;
}

.qr {
    image-rendering: pixelated;
    border: 1px solid var(--line);
}

.public-page .qr {
    width: 220px;
    height: 220px;
}

ul {
    margin: 0 0 1rem;
    padding-left: 1.25rem;
}