:root {
  --bg: #f4f7f5;
  --surface: #ffffff;
  --ink: #1a2e24;
  --muted: #5c7268;
  --line: #d5e0da;
  --accent: #1f6b4a;
  --accent-soft: #e6f3ec;
  --danger: #9b2c2c;
  --warning: #8a5a00;
  --ok: #1f6b4a;
  --radius: 8px;
  --font: "Source Sans 3", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: linear-gradient(180deg, #eef5f1 0%, var(--bg) 180px);
  color: var(--ink);
  line-height: 1.45;
  min-height: 100vh;
}

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

.layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar {
  background: #143528;
  color: #e8f2ec;
  padding: 1.25rem 1rem;
}
.sidebar .brand { font-weight: 700; font-size: 1.15rem; margin-bottom: 1.5rem; letter-spacing: 0.02em; }
.sidebar nav a {
  display: block;
  color: #c9ddd2;
  padding: 0.45rem 0.6rem;
  border-radius: 6px;
  margin-bottom: 0.2rem;
}
.sidebar nav a:hover, .sidebar nav a.active {
  background: rgba(255,255,255,0.08);
  color: #fff;
  text-decoration: none;
}
.main { padding: 1.25rem 1.5rem 2rem; }
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.topbar h1 { margin: 0; font-size: 1.45rem; font-weight: 650; }

.guest-wrap {
  max-width: 420px;
  margin: 8vh auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.guest-wrap h1 { margin-top: 0; }

.flash { list-style: none; padding: 0; margin: 0 0 1rem; }
.flash li {
  padding: 0.65rem 0.8rem;
  border-radius: 6px;
  margin-bottom: 0.4rem;
  border: 1px solid var(--line);
}
.flash .success { background: var(--accent-soft); border-color: #b7d9c6; }
.flash .error { background: #fdecec; border-color: #f0c2c2; color: var(--danger); }
.flash .warning { background: #fff7e6; border-color: #f0d9a8; color: var(--warning); }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
}
.card .label { color: var(--muted); font-size: 0.85rem; }
.card .value { font-size: 1.5rem; font-weight: 700; margin-top: 0.2rem; }

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}
.panel h2 { margin: 0 0 0.75rem; font-size: 1.1rem; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
table.data th, table.data td {
  text-align: left;
  padding: 0.55rem 0.45rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.data th { color: var(--muted); font-weight: 600; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.03em; }
table.data img.thumb { width: 40px; height: 40px; object-fit: cover; border-radius: 4px; background: #eee; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem 1rem;
}
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: 0.88rem; color: var(--muted); margin-bottom: 0.25rem; }
input[type=text], input[type=email], input[type=password], input[type=number], select, textarea {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  background: #fff;
}
textarea { min-height: 110px; font-family: var(--mono); font-size: 0.85rem; }
.help { color: var(--muted); font-size: 0.82rem; margin-top: 0.25rem; }
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; align-items: center; }

.btn {
  display: inline-block;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  font: inherit;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.05); text-decoration: none; }
.btn.secondary { background: #fff; color: var(--accent); }
.btn.danger { background: var(--danger); border-color: var(--danger); }
.btn.warning { background: #a86b00; border-color: #a86b00; }

.badge {
  display: inline-block;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  font-size: 0.75rem;
  background: #eef2f0;
  color: var(--muted);
}
.badge.ok { background: var(--accent-soft); color: var(--ok); }
.badge.fail { background: #fdecec; color: var(--danger); }
.badge.warn { background: #fff7e6; color: var(--warning); }
.badge.demo { background: #e8eefc; color: #2a4a8a; }

.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 0.75rem; align-items: end; }
.filters .field { min-width: 140px; }
.pager { display: flex; gap: 0.5rem; align-items: center; margin-top: 0.75rem; }
.mono { font-family: var(--mono); font-size: 0.85rem; }
.muted { color: var(--muted); }
.notice {
  border-left: 3px solid var(--warning);
  background: #fffaf0;
  padding: 0.75rem 0.9rem;
  margin-bottom: 1rem;
  border-radius: 0 6px 6px 0;
}
.stack > * + * { margin-top: 0.75rem; }
.checkbox-row { display: flex; gap: 0.4rem; align-items: center; margin-top: 1.4rem; }
.checkbox-row label { margin: 0; color: var(--ink); }

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { padding: 0.85rem 1rem; }
  .sidebar nav { display: flex; flex-wrap: wrap; gap: 0.25rem; }
  .sidebar nav a { margin: 0; }
  .form-grid { grid-template-columns: 1fr; }
  .main { padding: 1rem; }
  table.data { display: block; overflow-x: auto; }
}