:root { --ink:#172033; --line:#d8e0ea; --bg:#f4f6f8; --card:#fff; --accent:#2457d6; }
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.45 "Segoe UI", sans-serif; background: var(--bg); color: var(--ink); }
header, main { width: min(1100px, calc(100% - 28px)); margin: 0 auto; }
header { display: flex; justify-content: space-between; align-items: center; padding: 18px 0; }
header a, nav a { color: var(--accent); text-decoration: none; margin-left: 12px; }
h1 { margin: 8px 0 16px; }
.card, .table-wrap, .stat { background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.card { padding: 16px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
label, fieldset { display: block; margin: 10px 0; }
input, select, button { width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; }
button { background: var(--accent); color: white; border: 0; cursor: pointer; }
.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; }
.stat { padding: 10px 12px; }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; }
th { background: var(--accent); color: white; }
.err { color: #a12626; }
.ok, .hint { color: #315c2b; }
.hint { color: #5d6b82; }