:root {
    --bg: #f4f6f8;
    --panel: #ffffff;
    --border: #e2e8f0;
    --text: #1f2937;
    --muted: #6b7280;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --danger: #dc2626;
    --ok: #16a34a;
}

* { 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);
    font-size: 14px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.topbar .brand { font-weight: 700; font-size: 16px; }
.topbar nav a { margin-right: 18px; color: var(--muted); font-weight: 500; }
.topbar nav a.active, .topbar nav a:hover { color: var(--text); }

.container { max-width: 1100px; margin: 28px auto; padding: 0 24px; }

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

h1 { font-size: 20px; margin: 0 0 18px; }
h2 { font-size: 16px; margin: 0 0 14px; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 18px; }
.stat .num { font-size: 28px; font-weight: 700; }
.stat .label { color: var(--muted); margin-top: 4px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; background: #eef2ff; color: #3730a3; }

.btn {
    display: inline-block; padding: 9px 16px; border-radius: 8px;
    background: var(--primary); color: #fff; border: 0; font-weight: 600;
    cursor: pointer; font-size: 14px;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; }

.field { margin-bottom: 14px; }
.field label { display: block; font-weight: 600; margin-bottom: 6px; }
.field input {
    width: 100%; padding: 10px 12px; border: 1px solid var(--border);
    border-radius: 8px; font-size: 14px;
}

.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.auth-card { width: 380px; }

.error { color: var(--danger); font-size: 13px; margin-top: 6px; }
.muted { color: var(--muted); }