:root {
    --bg: #f5f7fb;
    --card: #ffffff;
    --text: #172033;
    --muted: #6b7280;
    --line: #e7ebf3;
    --primary: #1d4ed8;
    --primary-dark: #163fae;
    --success: #0f9d58;
    --danger: #d93025;
    --warning: #b7791f;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Inter, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}
.topbar {
    background: #0f172a;
    color: white;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.brand { font-weight: 800; letter-spacing: .2px; }
.topnav { display: flex; gap: 10px; flex-wrap: wrap; }
.topnav a {
    color: white;
    text-decoration: none;
    padding: 10px 14px;
    border-radius: 10px;
    background: rgba(255,255,255,.08);
}
.container { max-width: 1280px; margin: 24px auto; padding: 0 16px 40px; }
.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 20px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, .04);
    margin-bottom: 20px;
}
h1, h2, h3 { margin-top: 0; }
.muted { color: var(--muted); }
.stats-grid, .grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}
.stat span { display: block; color: var(--muted); margin-bottom: 8px; }
.stat strong { font-size: 32px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
    text-align: left;
    padding: 12px 10px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 1px solid var(--line);
    background: white;
    color: var(--text);
    text-decoration: none;
    padding: 10px 14px;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
}
.btn.primary {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}
.btn.primary:hover { background: var(--primary-dark); }
.btn.small { padding: 7px 12px; border-radius: 10px; }
.toolbar, .page-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}
.toolbar.compact { margin: 0; }
.form-grid {
    display: grid;
    gap: 16px;
}
.form-grid.two { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.form-grid .full { grid-column: 1 / -1; }
label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 8px;
}
input, select, textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #d4dbe7;
    border-radius: 12px;
    background: white;
    font: inherit;
}
textarea { resize: vertical; }
.actions-row { display: flex; justify-content: flex-end; }
.flash-stack { display: grid; gap: 10px; margin-bottom: 20px; }
.flash {
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid transparent;
    background: white;
}
.flash.success { border-color: #b7ebc6; background: #effcf3; }
.flash.danger { border-color: #f2b8b5; background: #fff3f2; }
.flash.info { border-color: #bdd6ff; background: #eef5ff; }
.auth-wrap {
    min-height: calc(100vh - 150px);
    display: grid;
    place-items: center;
}
.auth-card { max-width: 460px; width: 100%; }
.full { width: 100%; }
.checkbox-row { display: flex; align-items: center; gap: 10px; font-weight: 500; }
.checkbox-row input { width: auto; }
.simple-list { margin: 0; padding-left: 18px; }
hr { border: none; border-top: 1px solid var(--line); margin: 18px 0; }
@media (max-width: 768px) {
    .topbar { flex-direction: column; align-items: flex-start; }
    .stat strong { font-size: 26px; }
}