:root {
    --bg: #0f1419;
    --card: #1a2332;
    --border: #2d3a4d;
    --text: #e7ecf3;
    --muted: #8b9bb4;
    --accent: #3b82f6;
    --ok: #22c55e;
    --warn: #f59e0b;
    --danger: #ef4444;
    --danger-bg: #3f1d1d;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.45;
}

.page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem 3rem;
}

.header {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.25rem;
}

h1 { margin: 0 0 0.35rem; font-size: 1.5rem; }
h2 { margin: 0 0 0.5rem; font-size: 1.15rem; }

.sub, .hint {
    margin: 0 0 0.75rem;
    color: var(--muted);
    max-width: 44rem;
    font-size: 0.95rem;
}

.header-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--muted);
    font-size: 0.9rem;
}

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.panel {
    margin: 1.5rem 0;
}

.check {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--muted);
    font-size: 0.9rem;
    cursor: pointer;
}

.btn {
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 0.45rem 0.85rem;
    font-size: 0.9rem;
    cursor: pointer;
}

.btn:hover { filter: brightness(1.08); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.secondary { background: #374151; }
.btn.danger { background: var(--danger); margin-left: auto; }
.btn.small {
    padding: 0.3rem 0.6rem;
    font-size: 0.8rem;
    background: transparent;
    border: 1px solid var(--danger);
    color: var(--danger);
}
.btn.small:hover { background: var(--danger-bg); }

.create-form {
    display: grid;
    grid-template-columns: 1.4fr 1.4fr 0.8fr auto;
    gap: 0.75rem;
    align-items: end;
    margin-bottom: 1rem;
    padding: 0.85rem 1rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.create-form label {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    font-size: 0.8rem;
    color: var(--muted);
}

.create-form input,
.create-form select {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    padding: 0.45rem 0.55rem;
    font-size: 0.9rem;
}

.req { color: var(--danger); }

.summary {
    color: var(--muted);
    font-size: 0.9rem;
    margin: 0 0 0.75rem;
}

.error {
    background: var(--danger-bg);
    border: 1px solid var(--danger);
    color: #fecaca;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

th, td {
    text-align: left;
    padding: 0.65rem 0.75rem;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

th {
    color: var(--muted);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

tr:last-child td { border-bottom: none; }

.empty {
    color: var(--muted);
    text-align: center;
    padding: 2rem !important;
}

.device {
    max-width: 16rem;
    word-break: break-word;
}

.mono {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.8rem;
    color: var(--muted);
}

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge.active { background: #14532d; color: #bbf7d0; }
.badge.revoked { background: #3f1d1d; color: #fecaca; }
.badge.expired { background: #422006; color: #fde68a; }

.footer {
    margin-top: 1.5rem;
    color: var(--muted);
    font-size: 0.85rem;
}
.footer a { color: var(--accent); }
.footer code, .sub code, .hint code {
    background: var(--card);
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
    font-size: 0.8rem;
}

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    z-index: 50;
}
.modal[hidden] { display: none !important; }

.modal-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
    max-width: 36rem;
    width: 100%;
}

.secret-box {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.75rem;
    overflow-x: auto;
    word-break: break-all;
    white-space: pre-wrap;
    font-size: 0.8rem;
    color: #bbf7d0;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

@media (max-width: 800px) {
    .create-form {
        grid-template-columns: 1fr;
    }
    .btn.danger { margin-left: 0; width: 100%; }
}