:root {
  --bg: #f3f5f8;
  --bg-sidebar: #0f172a;
  --bg-sidebar-hover: #1e293b;
  --bg-card: #ffffff;
  --line: #e5e7eb;
  --line-strong: #d1d5db;
  --text: #0f172a;
  --muted: #64748b;
  --faint: #94a3b8;
  --primary: #1d4ed8;
  --primary-hover: #1e40af;
  --primary-soft: #eff6ff;
  --ok: #047857;
  --ok-bg: #d1fae5;
  --warn: #b45309;
  --warn-bg: #fef3c7;
  --bad: #b91c1c;
  --bad-bg: #fee2e2;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 8px 24px rgba(15, 23, 42, .04);
  --radius: 14px;
  --font: "Segoe UI", Inter, system-ui, sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
}

a { color: inherit; text-decoration: none; }
code {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  background: #f1f5f9;
  border-radius: 6px;
  padding: 2px 6px;
  font-size: 12px;
}

.layout { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }

.sidebar {
  background: var(--bg-sidebar);
  color: #e2e8f0;
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.brand { display: grid; gap: 10px; padding: 4px 4px 8px; }
.brand-logo-wrap {
  background: #fff;
  border-radius: 12px;
  padding: 10px 12px;
}
.brand-logo { width: 100%; height: auto; display: block; }
.brand p {
  margin: 0;
  text-align: center;
  font-size: 11px;
  color: #94a3b8;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.nav { display: grid; gap: 4px; }
.nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 10px; color: #cbd5e1; font-size: 14px;
}
.nav a:hover { background: var(--bg-sidebar-hover); color: #fff; }
.nav a.active { background: #1d4ed8; color: #fff; }
.nav svg { width: 18px; height: 18px; flex: none; }
.sidebar-foot { margin-top: auto; padding: 8px; }
.sidebar-foot a { color: #94a3b8; font-size: 13px; }
.sidebar-foot a:hover { color: #fff; }

.content { padding: 28px 32px 48px; min-width: 0; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 22px; }
.page-head h2 { margin: 0; font-size: 26px; letter-spacing: -.02em; }
.page-head p { margin: 6px 0 0; color: var(--muted); }

.stats { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow);
}
.stat strong { display: block; font-size: 26px; letter-spacing: -.03em; }
.stat span { color: var(--muted); font-size: 12px; }
.stat.warn strong { color: var(--warn); }
.stat.bad strong { color: var(--bad); }
.stat.ok strong { color: var(--ok); }

.panel {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 8px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}
.panel.pad { padding: 20px; }
.panel h3 { margin: 0 0 14px; font-size: 15px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
.panel-head h3 { margin: 0; }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.toolbar form { display: flex; gap: 8px; flex: 1; min-width: 240px; }
.toolbar input[type="search"], .toolbar input[type="text"] { flex: 1; min-width: 180px; }

.filters { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--line); background: #fff; color: var(--muted);
  border-radius: 999px; padding: 6px 12px; font-size: 13px;
}
.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip.active { background: var(--primary-soft); border-color: #bfdbfe; color: var(--primary); font-weight: 700; }

label { display: grid; gap: 6px; font-size: 13px; color: #475569; font-weight: 600; }
input, select, textarea, button, .btn {
  font: inherit; border-radius: 10px; border: 1px solid var(--line-strong); padding: 9px 12px;
}
input, select, textarea { background: #fff; min-width: 0; color: var(--text); }
input:focus, select:focus, textarea:focus {
  outline: 3px solid #dbeafe; border-color: var(--primary);
}
.grid-form { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; align-items: end; }
.grid-form .wide { grid-column: span 2; }
.grid-form .full { grid-column: 1 / -1; }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 8px; }

.check-option {
  min-height: 72px;
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f8fafc;
  cursor: pointer;
  font-weight: 400;
}
.check-option:hover { border-color: #93c5fd; background: var(--primary-soft); }
.check-option:has(input:checked) { border-color: #93c5fd; background: var(--primary-soft); }
.check-option input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  margin: 1px 0 0;
  padding: 0;
  accent-color: var(--primary);
}
.check-option span { display: grid; gap: 3px; line-height: 1.25; }
.check-option strong { color: var(--text); font-size: 13px; }
.check-option small { color: var(--muted); font-size: 11px; font-weight: 400; }
.file-field input[type="file"] { padding: 7px; background: #f8fafc; }
.file-field input[type="file"]::file-selector-button {
  border: 0;
  border-radius: 8px;
  padding: 8px 12px;
  margin-right: 12px;
  background: #e2e8f0;
  color: #1e293b;
  font-weight: 650;
  cursor: pointer;
}
.file-field input[type="file"]::file-selector-button:hover { background: #cbd5e1; }

button, .btn {
  cursor: pointer; background: var(--primary); color: #fff; border-color: var(--primary);
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font-weight: 650; white-space: nowrap;
}
button:hover, .btn:hover { background: var(--primary-hover); }
button:disabled, .btn:disabled { opacity: .45; cursor: not-allowed; background: #94a3b8; border-color: #94a3b8; }
.btn.ghost, button.ghost { background: #fff; color: #334155; border-color: var(--line-strong); }
.btn.ghost:hover, button.ghost:hover { background: #f8fafc; }
.btn.danger, button.danger { background: #dc2626; border-color: #dc2626; color: #fff; }
.btn.danger:hover, button.danger:hover { background: #b91c1c; }
.btn.warn, button.warn { background: #d97706; border-color: #d97706; color: #fff; }
.btn.ok, button.ok { background: #059669; border-color: #059669; }
.btn.sm, button.sm { padding: 6px 10px; font-size: 12px; border-radius: 8px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 11px 10px; border-top: 1px solid #f1f5f9; vertical-align: middle; }
th { color: var(--muted); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; border-top: 0; }
tbody tr:hover { background: #f8fafc; }
.row-link { color: var(--primary); font-weight: 700; }
.row-link:hover { text-decoration: underline; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }

.tag { border-radius: 999px; padding: 3px 9px; font-weight: 700; font-size: 12px; display: inline-flex; }
.tag.ok { background: var(--ok-bg); color: var(--ok); }
.tag.warn { background: var(--warn-bg); color: var(--warn); }
.tag.bad { background: var(--bad-bg); color: var(--bad); }
.tag.muted { background: #f1f5f9; color: #475569; }

.muted { color: var(--muted); }
.faint { color: var(--faint); }
.error { color: var(--bad); }
.stack { display: grid; gap: 4px; }
.kv { display: grid; grid-template-columns: 180px 1fr; gap: 8px 16px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 600; }

.alert {
  border-radius: 12px; padding: 12px 14px; margin-bottom: 16px; font-size: 14px;
  border: 1px solid transparent;
}
.alert.ok { background: var(--ok-bg); color: var(--ok); border-color: #a7f3d0; }
.alert.warn { background: var(--warn-bg); color: var(--warn); border-color: #fde68a; }
.alert.bad { background: var(--bad-bg); color: var(--bad); border-color: #fecaca; }
.alert.info { background: var(--primary-soft); color: #1e40af; border-color: #bfdbfe; }

.copy {
  cursor: pointer; position: relative;
}
.copy.copied::after {
  content: "Đã copy";
  position: absolute; left: 50%; top: -28px; transform: translateX(-50%);
  background: #0f172a; color: #fff; font-size: 11px; padding: 3px 7px; border-radius: 6px; white-space: nowrap;
}

.machines { margin: 0; padding-left: 18px; color: #475569; }
.machines li { margin: 3px 0; }
.conflict { background: var(--bad-bg); border: 1px solid #fecaca; color: var(--bad); padding: 8px 12px; border-radius: 10px; font-weight: 700; margin-bottom: 8px; }

.empty { text-align: center; padding: 36px 16px; color: var(--muted); }
.empty strong { display: block; color: var(--text); margin-bottom: 4px; }

.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at top, #1e293b, #0f172a); }
.login-card {
  width: min(420px, 100%); background: #fff; border-radius: 20px; padding: 28px;
  box-shadow: 0 24px 80px rgba(0,0,0,.28);
}
.login-logo { display: block; width: min(280px, 100%); height: auto; margin: 0 auto 18px; }
.login-card h1 { margin: 0 0 6px; font-size: 22px; text-align: center; }
.login-card p { margin: 0 0 18px; color: var(--muted); text-align: center; }
.login-card form { display: grid; gap: 12px; }
.login-card button { width: 100%; padding: 12px; }

.danger-box {
  border: 1px solid #fecaca; background: #fff7f7; border-radius: 16px; padding: 22px;
}
.danger-box h3 { margin: 0 0 8px; color: var(--bad); }
.confirm-input { margin: 14px 0; }

.meta-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 16px; }
.split { display: grid; grid-template-columns: 1fr 320px; gap: 16px; align-items: start; }

@media (max-width: 1100px) {
  .stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .split, .meta-grid { grid-template-columns: 1fr; }
  .grid-form { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; gap: 12px; }
  .nav { grid-auto-flow: column; overflow: auto; }
  .sidebar-foot { margin: 0; }
  .content { padding: 16px; }
  .stats, .grid-form { grid-template-columns: 1fr; }
  .grid-form .wide, .grid-form .full { grid-column: auto; }
  table { display: block; overflow-x: auto; }
}