:root {
  --primary: #1f6feb;
  --dark: #0d1117;
  --gray: #57606a;
  --border: #d0d7de;
  --bg: #f6f8fa;
  --success: #1a7f37;
  --danger: #cf222e;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--dark);
  background: #fff;
}
.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }
.site-header { background: var(--dark); color: #fff; padding: 48px 0; }
.site-header h1 { margin: 0 0 8px; }
.tagline { color: #c9d1d9; margin: 0; }
main { padding: 40px 0; }
h2 { border-bottom: 2px solid var(--border); padding-bottom: 8px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 20px; }
.card { border: 1px solid var(--border); border-radius: 8px; padding: 16px; background: var(--bg); }
.card h3 { margin-top: 0; }
.form { display: flex; flex-direction: column; gap: 12px; max-width: 480px; }
.form label { display: flex; flex-direction: column; font-weight: 600; gap: 4px; }
.form input, .form textarea, select {
  font: inherit; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px;
}
button {
  font: inherit; background: var(--primary); color: #fff; border: none;
  padding: 10px 16px; border-radius: 6px; cursor: pointer; width: fit-content;
}
button:hover { opacity: 0.9; }
button.secondary { background: var(--gray); }
button.danger { background: var(--danger); }
.success { color: var(--success); font-weight: 600; }
.error { color: var(--danger); font-weight: 600; }
.site-footer { background: var(--bg); border-top: 1px solid var(--border); padding: 20px 0; color: var(--gray); }

/* Admin */
.admin-header { background: var(--dark); color: #fff; padding: 16px 0; margin-bottom: 24px; }
.admin-header .container { display: flex; justify-content: space-between; align-items: center; }
.admin-header a { color: #fff; text-decoration: none; margin-right: 16px; }
.admin-header form { display: inline; }
table { width: 100%; border-collapse: collapse; margin-top: 16px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { background: var(--bg); }
.badge { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 0.8em; background: var(--bg); border: 1px solid var(--border); }
.filters { display: flex; gap: 12px; margin: 16px 0; align-items: center; }
.filters select { padding: 6px 8px; }
.grid-2 { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; }
.quote-items-table input, .quote-items-table select { width: 100%; padding: 6px; }
.totals { margin-top: 12px; font-size: 1.1em; }
.totals strong { font-size: 1.3em; }
.login-box { max-width: 360px; margin: 80px auto; }
.stat-row { display: flex; gap: 12px; flex-wrap: wrap; margin: 16px 0; }
.stat { border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; background: var(--bg); }
.stat strong { display: block; font-size: 1.4em; }