:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #6b7280;
  --primary: #1e5f74;
  --primary-dark: #164a5c;
  --danger: #b3261e;
  --danger-bg: #fdecea;
  --success: #1b7a43;
  --success-bg: #e8f6ee;
  --border: #e3e6ea;
  --radius: 10px;
}

* { 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);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: var(--primary);
  color: #fff;
}

.topbar .brand {
  font-weight: 700;
  font-size: 1.2rem;
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.topnav a, .link-button {
  color: #fff;
  text-decoration: none;
  font-size: 0.95rem;
  opacity: 0.92;
}

.topnav a:hover, .link-button:hover {
  opacity: 1;
  text-decoration: underline;
}

.link-button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  font: inherit;
}

.inline-form { display: inline; }

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

h1 { font-size: 1.6rem; margin-bottom: 4px; }
h2 { font-size: 1.2rem; margin-top: 0; }
p.subtitle { color: var(--muted); margin-top: 0; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 20px;
}

.actions-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 9px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.92rem;
  text-decoration: none;
}
.btn:hover { background: var(--primary-dark); }
.btn.secondary { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn.secondary:hover { background: #eef5f7; }
.btn.danger { background: var(--danger); }
.btn.danger:hover { background: #8f1f19; }
.btn.small { padding: 5px 10px; font-size: 0.8rem; }

table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
  vertical-align: top;
}
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge.on { background: var(--success-bg); color: var(--success); }
.badge.off { background: var(--danger-bg); color: var(--danger); }

.form-group { margin-bottom: 16px; }
label { display: block; margin-bottom: 5px; font-size: 0.88rem; font-weight: 600; }
input[type=text], input[type=email], input[type=password], textarea, input[type=file] {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
}
textarea { resize: vertical; min-height: 80px; }
.hint { color: var(--muted); font-size: 0.82rem; margin-top: 4px; }

.checkbox-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 260px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
}
.checkbox-list label {
  font-weight: 400;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.alert {
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.alert.error { background: var(--danger-bg); color: var(--danger); }
.alert.success { background: var(--success-bg); color: var(--success); }

.empty {
  color: var(--muted);
  text-align: center;
  padding: 30px 0;
}

.login-wrap {
  max-width: 380px;
  margin: 60px auto;
}

.link-list { list-style: none; padding: 0; margin: 4px 0 0; }
.link-list li { margin-bottom: 3px; }

code.pub-link {
  background: #f0f2f4;
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 0.82rem;
}