* { box-sizing: border-box; }
body {
    font-family: system-ui, -apple-system, sans-serif;
    margin: 0;
    line-height: 1.5;
}
.page-header {
    padding: 1rem 2rem;
    border-bottom: 1px solid #ccc;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.page-header h1 { margin: 0; font-size: 1.25rem; }
.page-main { padding: 1.5rem 2rem; max-width: 960px; margin: 0 auto; }
form { display: grid; gap: 0.75rem; }
label { display: grid; gap: 0.25rem; }
input[type="text"],
input[type="email"],
input[type="password"] {
    font: inherit;
    padding: 0.4rem 0.5rem;
    border: 1px solid #999;
    border-radius: 4px;
    width: 100%;
}
button {
    font: inherit;
    padding: 0.45rem 0.9rem;
    border: 1px solid #444;
    background: #eee;
    border-radius: 4px;
    cursor: pointer;
}
button:hover { background: #ddd; }
button[disabled] { opacity: 0.6; cursor: progress; }
.notice { padding: 0.5rem 0.75rem; border-radius: 4px; margin: 0.5rem 0; }
.notice-error { background: #fee; border: 1px solid #c66; }
.notice-success { background: #efe; border: 1px solid #6c6; }
.toolbar { display: flex; gap: 0.5rem; align-items: center; margin-bottom: 1rem; }
.toolbar .spacer { flex: 1; }
.user-list { display: grid; gap: 0.5rem; }
.user-card {
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 0.75rem;
    cursor: pointer;
}
.user-card:hover { background: #f7f7f7; }
.user-card .meta { font-size: 0.8rem; color: #666; }
.user-card .meta.outcome-success { color: #1a6b1a; }
.user-card .meta.outcome-failure { color: #a02020; }
.user-detail { border: 1px solid #ccc; padding: 1rem; border-radius: 4px; margin-top: 1rem; }
.actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.history { display: grid; gap: 0.5rem; margin-top: 1rem; }
.history-row {
    background: #f6f6f6;
    padding: 0.5rem;
    border-radius: 4px;
    font-size: 0.9rem;
    display: flex;
    gap: 0.75rem;
    align-items: baseline;
}
.history-row .meta { font-size: 0.75rem; color: #555; }
.outcome-tag {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.outcome-tag.success { background: #d3eed3; color: #1a6b1a; }
.outcome-tag.failure { background: #f4d4d4; color: #a02020; }
.active-code-banner {
    background: #fff4d6;
    border: 1px solid #d4a72c;
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}