:root {
  --bg: #f4f6fb;
  --card: #fff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --navy: #0f2748;
  --orange: #f97316;
  --error: #b91c1c;
  --radius: 12px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 4px 24px rgba(15, 39, 72, 0.06);
}

.login-card h1 { margin: 0 0 8px; font-size: 1.35rem; color: var(--navy); }
.muted { color: var(--muted); font-size: 0.9rem; margin: 0 0 20px; }

label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; }
input[type="password"],
input[type="text"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  margin-bottom: 16px;
}

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 8px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.login-card button {
  width: 100%;
  background: var(--navy);
  color: #fff;
  margin-top: 8px;
}

.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar nav a { margin-left: 16px; color: var(--navy); font-weight: 600; text-decoration: none; }
.topbar nav a:hover { text-decoration: underline; }

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px 24px;
}
.container-narrow { max-width: 640px; }

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}
.page-head h1 { margin: 0; font-size: 1.5rem; color: var(--navy); }

.btn-primary { background: var(--orange); color: #fff; }
.btn-ghost { background: transparent; color: var(--navy); border: 1px solid var(--border); }

.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}
.table th, .table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.table th { background: #f8fafc; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); }

.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
}
.alert-error { background: #fef2f2; color: var(--error); border: 1px solid #fecaca; }

.form-stack fieldset {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin: 0 0 20px;
  background: var(--card);
}
.form-stack legend {
  padding: 0 8px;
  font-weight: 800;
  color: var(--navy);
}
.hint { font-size: 0.85rem; color: var(--muted); margin: -8px 0 12px; }
.form-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }

code { background: #f1f5f9; padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }