*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f5f6fa;
  --surface: #ffffff;
  --border: #e1e4e8;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --text: #1f2937;
  --muted: #6b7280;
  --ok: #16a34a;
  --ok-bg: #dcfce7;
  --warn: #d97706;
  --warn-bg: #fef3c7;
  --err: #dc2626;
  --err-bg: #fee2e2;
  --unknown: #6b7280;
  --unknown-bg: #f3f4f6;
}

body { font-family: system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); font-size: 0.95rem; line-height: 1.5; }

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

/* ---- Nav ---- */
nav { background: var(--surface); border-bottom: 1px solid var(--border); padding: 0 1.5rem; display: flex; align-items: center; gap: 1.5rem; height: 52px; }
nav .brand { font-weight: 700; font-size: 1rem; color: var(--text); }
nav .spacer { flex: 1; }
nav a { color: var(--muted); font-size: 0.9rem; }
nav a:hover { color: var(--text); text-decoration: none; }
nav .user-info { font-size: 0.85rem; color: var(--muted); }

/* ---- Layout ---- */
.container { max-width: 1100px; margin: 2rem auto; padding: 0 1.5rem; }
h1 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1.5rem; }
h2 { font-size: 1.2rem; font-weight: 600; margin-bottom: 1rem; }

/* ---- Card ---- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 1.5rem; margin-bottom: 1.5rem; }

/* ---- Table ---- */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 0.8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); padding: 0.6rem 0.75rem; border-bottom: 1px solid var(--border); }
td { padding: 0.75rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg); }

/* ---- Status Badge ---- */
.badge { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.2rem 0.6rem; border-radius: 999px; font-size: 0.8rem; font-weight: 600; }
.badge::before { content: "●"; font-size: 0.65rem; }
.badge-ok    { color: var(--ok);      background: var(--ok-bg); }
.badge-warning { color: var(--warn);  background: var(--warn-bg); }
.badge-error { color: var(--err);     background: var(--err-bg); }
.badge-unknown { color: var(--unknown); background: var(--unknown-bg); }

/* ---- Buttons ---- */
.btn { display: inline-block; padding: 0.45rem 1rem; border-radius: 6px; font-size: 0.875rem; font-weight: 500; cursor: pointer; border: none; transition: background .15s; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; text-decoration: none; }
.btn-danger  { background: var(--danger);  color: #fff; }
.btn-danger:hover  { background: var(--danger-hover); color: #fff; }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-secondary:hover { background: #d1d5db; color: var(--text); text-decoration: none; }
.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.8rem; }

/* ---- Forms ---- */
.form-group { margin-bottom: 1rem; }
label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.3rem; }
input[type=text], input[type=password], input[type=url], input[type=email], select {
  width: 100%; padding: 0.5rem 0.75rem; border: 1px solid var(--border); border-radius: 6px;
  font-size: 0.9rem; background: var(--surface); color: var(--text);
  transition: border-color .15s;
}
input:focus, select:focus { outline: none; border-color: var(--primary); }
.checkbox-row { display: flex; align-items: center; gap: 0.5rem; }
.checkbox-row input { width: auto; }

/* ---- Login ---- */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 2.5rem 2rem; width: 100%; max-width: 380px; }
.login-card h1 { text-align: center; margin-bottom: 1.5rem; font-size: 1.3rem; }
.error-msg { background: var(--err-bg); color: var(--err); padding: 0.5rem 0.75rem; border-radius: 6px; font-size: 0.875rem; margin-bottom: 1rem; }

/* ---- Misc ---- */
.muted { color: var(--muted); font-size: 0.85rem; }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.gap-1 { gap: 0.4rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.error-box { background: var(--err-bg); color: var(--err); padding: 0.75rem 1rem; border-radius: 6px; font-size: 0.875rem; }