:root {
  --brand: #5A7768;
  --brand-dark: #465e54;
  --brand-light: #E7EFEA;
  --ink: #26302b;
  --muted: #5b6a62;
  --bg: #F7FAF8;
  --card-bg: #ffffff;
  --border: #dfe7e2;
  --danger: #b3261e;
  --danger-bg: #fbeceb;
  --ok: #2e7d4f;
  --ok-bg: #e8f5ec;
  --radius: 12px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}
.wrap { max-width: 960px; margin: 0 auto; padding: 24px; }

header.top {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
header.top .wrap { display: flex; align-items: center; justify-content: space-between; padding-top: 0; padding-bottom: 0; position: relative; }
header.top h1 { font-size: 1.15rem; margin: 0; }
header.top h1 a { color: var(--ink); text-decoration: none; }
header.top h1 a:hover { color: var(--brand-dark); }

/* hamburger */
.hamburger {
  background: none; border: none; cursor: pointer; padding: 8px;
  display: flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 36px; height: 36px; border-radius: 8px;
}
.hamburger:hover { background: var(--brand-light); }
.hamburger span {
  display: block; width: 20px; height: 2px; background: var(--ink); border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-menu {
  display: none; flex-direction: column; gap: 2px;
  position: absolute; top: 100%; right: 0; margin-top: 8px;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(38, 48, 43, 0.12); padding: 8px; min-width: 190px; z-index: 30;
}
.nav-menu.open { display: flex; }
.nav-menu a {
  color: var(--ink); text-decoration: none; font-size: 0.88rem;
  padding: 9px 12px; border-radius: 8px;
}
.nav-menu a:hover { background: var(--brand-light); color: var(--brand-dark); }
.nav-menu a.logout:hover { background: var(--danger-bg); color: var(--danger); }

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

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin-top: 20px; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.card h3 { margin: 0; font-size: 1rem; }
.card a.ext-link { font-size: 0.8rem; color: var(--muted); text-decoration: none; }

.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.75rem; font-weight: 600; border-radius: 999px;
  padding: 3px 10px; width: fit-content;
}
.badge.running { background: var(--ok-bg); color: var(--ok); }
.badge.other { background: var(--danger-bg); color: var(--danger); }

.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: auto; }

button, .btn {
  font-size: 0.82rem; font-weight: 600; border-radius: 8px; border: 1px solid var(--border);
  background: #fff; color: var(--ink); padding: 6px 12px; cursor: pointer; text-decoration: none;
}
button:hover, .btn:hover { border-color: var(--brand); color: var(--brand-dark); }
button.primary { background: var(--brand); color: #fff; border-color: var(--brand); }
button.primary:hover { background: var(--brand-dark); }

section.backups { margin-top: 36px; }
section.backups h2 { font-size: 1.05rem; }
.backup-row { display: flex; align-items: center; justify-content: space-between; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 16px; margin-bottom: 8px; }

/* login */
.login-box {
  max-width: 360px; margin: 90px auto; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px;
}
.login-box h1 { font-size: 1.2rem; text-align: center; margin-top: 0; }
.login-box label { display: block; font-size: 0.85rem; margin: 14px 0 6px; color: var(--muted); }
.login-box input { width: 100%; padding: 9px 12px; border-radius: 8px; border: 1px solid var(--border); font-size: 0.95rem; }
.login-box button { width: 100%; margin-top: 20px; padding: 10px; }

/* logs */
pre.logs {
  background: #1c211e; color: #dbe7e0; padding: 16px; border-radius: var(--radius);
  overflow-x: auto; font-size: 0.82rem; line-height: 1.45; white-space: pre-wrap; word-break: break-word;
}

/* system / resources */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-top: 20px; }
.stat-card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; display: flex; flex-direction: column; gap: 4px;
}
.stat-label { font-size: 0.78rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.stat-value { font-size: 1.7rem; font-weight: 700; color: var(--brand-dark); }
.stat-sub { font-size: 0.78rem; color: var(--muted); }

.chart-section { margin-top: 32px; }
.chart-section h2 { font-size: 1.05rem; margin-bottom: 10px; }
.chart-box {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px;
}
.muted { color: var(--muted); font-weight: 400; font-size: 0.82rem; }

.services-table { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: 0.85rem; }
.services-table th, .services-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.services-table th { color: var(--muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
.services-table tr.total-row td { font-weight: 700; border-top: 2px solid var(--border); border-bottom: none; }

/* architecture */
.mermaid-box { overflow-x: auto; }
.legend-dot { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 4px; vertical-align: middle; }
.legend-dot.docker { background: var(--brand-light); border: 1px solid var(--brand); }
.legend-dot.systemd { background: var(--danger-bg); border: 1px solid var(--danger); }