:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --border: #2d3a4d;
  --text: #e6edf3;
  --muted: #8b9eb0;
  --accent: #58a6ff;
  --accent-hover: #79b8ff;
  --green: #3fb950;
  --red: #f85149;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.logo { font-weight: 700; font-size: 1.25rem; color: var(--text); }
.header nav { display: flex; align-items: center; gap: 1rem; margin-left: auto; }
.header nav .user { color: var(--muted); font-size: 0.9rem; }
.inline { display: inline; margin: 0; }
.header button { background: var(--border); color: var(--text); border: none; padding: 0.35rem 0.75rem; border-radius: 6px; cursor: pointer; }
.header button:hover { background: #3d4d66; }

.main { max-width: 1200px; margin: 0 auto; padding: 1.5rem; }

/* Login */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 360px;
}
.login-box h1 { margin: 0 0 0.25rem; font-size: 1.5rem; }
.tagline { color: var(--muted); margin: 0 0 1.5rem; font-size: 0.9rem; }
.form label { display: block; margin-top: 1rem; margin-bottom: 0.25rem; font-size: 0.9rem; color: var(--muted); }
.form input { width: 100%; padding: 0.5rem 0.75rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); font-size: 1rem; }
.form button { margin-top: 1.5rem; width: 100%; padding: 0.6rem; background: var(--accent); color: #fff; border: none; border-radius: 6px; font-size: 1rem; cursor: pointer; }
.form button:hover { background: var(--accent-hover); }

/* Lists */
.page-title { margin: 0 0 1rem; font-size: 1.5rem; }
.actions { margin-bottom: 1rem; display: flex; gap: 0.5rem; flex-wrap: wrap; }
.btn { display: inline-block; padding: 0.5rem 1rem; border-radius: 6px; font-size: 0.9rem; border: none; cursor: pointer; text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-secondary:hover { background: #3d4d66; }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #ff6b6b; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
}
.card h3 { margin: 0 0 0.5rem; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.card .card-actions { margin-top: 0.75rem; display: flex; gap: 0.5rem; flex-wrap: wrap; }

table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: 8px; overflow: hidden; }
th, td { padding: 0.6rem 0.75rem; text-align: left; border-bottom: 1px solid var(--border); }
th { background: #252d3a; color: var(--muted); font-weight: 600; font-size: 0.85rem; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #222c3a; }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.25rem; color: var(--muted); font-size: 0.9rem; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 0.5rem 0.75rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text);
}

/* Modal */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center; z-index: 100; }
.modal { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem; min-width: 320px; max-width: 90vw; }
.modal h3 { margin: 0 0 1rem; }
.modal-actions { margin-top: 1rem; display: flex; gap: 0.5rem; justify-content: flex-end; }