:root {
    --bg: #fafafa;
    --fg: #1a1a1a;
    --accent: #0088cc;
    --muted: #888;
    --border: #e1e1e1;
    --card: #fff;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.5;
}
header {
    background: var(--card);
    border-bottom: 1px solid var(--border);
}
nav {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}
nav a {
    color: var(--fg);
    text-decoration: none;
}
nav a:hover { color: var(--accent); }
nav .brand { font-weight: 700; color: var(--accent); }
nav .spacer { flex: 1; }
nav .user { color: var(--muted); font-size: 0.9rem; }

main {
    max-width: 1100px;
    margin: 2rem auto;
    padding: 0 1rem;
}
h1 { margin-top: 0; }
.login { max-width: 520px; }
.hint { color: var(--muted); margin-top: 1rem; }
code {
    background: #eee;
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
    font-family: ui-monospace, Menlo, Consolas, monospace;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card);
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
th, td {
    text-align: left;
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid var(--border);
}
th { background: #f4f4f4; font-weight: 600; }
tr:last-child td { border-bottom: 0; }

button, .btn {
    background: var(--accent);
    color: #fff;
    border: 0;
    border-radius: 4px;
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    font-size: 0.95rem;
    text-decoration: none;
    display: inline-block;
}
button.danger, .btn.danger { background: #c33; }
button.ghost, .btn.ghost { background: transparent; color: var(--fg); border: 1px solid var(--border); }

form.inline { display: inline; }
input[type=text], input[type=number] {
    padding: 0.4rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.95rem;
}
.tag { display: inline-block; padding: 0.1rem 0.5rem; border-radius: 10px; font-size: 0.8rem; }
.tag.admin { background: #e8f1ff; color: #045; }
.tag.user  { background: #efefef; color: #444; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 2rem; }
.card  { background: var(--card); padding: 1rem; border-radius: 6px; box-shadow: 0 1px 2px rgba(0,0,0,0.04); }
.card-label { color: var(--muted); font-size: 0.85rem; }
.card-value { font-size: 1.8rem; font-weight: 600; margin-top: 0.25rem; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; }
.card-grid .card h3 { margin: 0 0 0.5rem; font-size: 1rem; }
.card-grid dl { margin: 0; display: grid; grid-template-columns: 110px 1fr; gap: 0.3rem 0.5rem; }
.card-grid dt { color: var(--muted); font-size: 0.85rem; }
.card-grid dd { margin: 0; word-break: break-word; }

.client-form .form-row { display: grid; grid-template-columns: 200px 1fr; gap: 0.5rem; margin-bottom: 0.5rem; align-items: start; }
.client-form .form-row label { color: var(--muted); padding-top: 0.4rem; }
.client-form input, .client-form select, .client-form textarea { width: 100%; padding: 0.4rem; border: 1px solid var(--border); border-radius: 4px; font-size: 0.95rem; }
.client-form h2 { font-size: 1rem; margin-top: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 0.3rem; }
.client-form .has-error input { border-color: #c33; background: #fff5f5; }
.client-form .field-error { color: #c33; font-size: 0.85rem; margin-top: 0.2rem; }
.client-form .field-hint  { color: var(--muted); font-size: 0.8rem; margin-top: 0.2rem; }
.errors { background: #fff5f5; border: 1px solid #fbb; padding: 0.6rem 0.8rem; border-radius: 4px; margin-bottom: 1rem; }
.errors ul { margin: 0.4rem 0 0; padding-left: 1.2rem; }

.pager { display: flex; align-items: center; gap: 0.75rem; margin-top: 1rem; }