:root {
    --bg: #f5f6f8;
    --surface: #ffffff;
    --border: #dfe3e8;
    --text: #1c1f24;
    --muted: #667085;
    --primary: #2f5eff;
    --primary-dark: #1f44d1;
    --success: #1a7f37;
    --success-bg: #e6f6ea;
    --error: #b3261e;
    --error-bg: #fdecea;
    font-size: 16px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 28px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.topbar .brand { font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; }
.topbar nav a { margin-left: 18px; color: var(--muted); text-decoration: none; font-size: 0.92rem; }
.topbar nav a:hover { color: var(--primary); }

.container {
    max-width: 880px;
    margin: 32px auto;
    padding: 0 20px 60px;
}

h1 { font-size: 1.6rem; margin-bottom: 4px; }
h2 { font-size: 1.15rem; margin-top: 32px; }
.subtitle { color: var(--muted); margin-top: 0; }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px 24px;
    margin-bottom: 20px;
}

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 16px; }
.stat .value { font-size: 1.6rem; font-weight: 700; }
.stat .label { color: var(--muted); font-size: 0.85rem; }

.progress { background: var(--bg); border-radius: 6px; height: 8px; overflow: hidden; margin-top: 8px; }
.progress > span { display: block; height: 100%; background: var(--primary); }

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; }

form.inline { display: inline; }

label { display: block; margin: 14px 0 6px; font-size: 0.88rem; font-weight: 600; }
input[type=text], input[type=email], input[type=password], input[type=number], select, textarea {
    width: 100%;
    padding: 9px 11px;
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 0.95rem;
    font-family: inherit;
}
textarea { min-height: 90px; }

button, .btn {
    display: inline-block;
    margin-top: 16px;
    padding: 9px 18px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 7px;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}
button:hover, .btn:hover { background: var(--primary-dark); }
button.secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
button.danger { background: var(--error-bg); color: var(--error); }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 20px; font-size: 0.92rem; }
.alert-success { background: var(--success-bg); color: var(--success); }
.alert-error { background: var(--error-bg); color: var(--error); }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge-active { background: var(--success-bg); color: var(--success); }
.badge-revoked { background: var(--error-bg); color: var(--error); }

code, .code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--bg); padding: 2px 6px; border-radius: 4px; font-size: 0.88em; }
pre.code-block { background: #10131a; color: #e6e6e6; padding: 14px 16px; border-radius: 8px; overflow-x: auto; font-size: 0.85rem; }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }