:root {
  --ink: #111;
  --paper: #f8f7f3;
  --accent: #2a6049;
  --accent-lt: #e6f0ec;
  --warm: #c07830;
  --red: #b83232;
  --border: #dedad0;
}

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

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.5;
}

.admin-header {
  background: var(--ink);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.admin-header h1 { font-size: 18px; font-weight: 600; }

.admin-header nav { margin-left: auto; display: flex; gap: 12px; align-items: center; }

.admin-header a { color: rgba(255,255,255,.75); text-decoration: none; font-size: 13px; }

.admin-header a:hover { color: #fff; }

.admin-main { max-width: 1100px; margin: 0 auto; padding: 24px; }

.alert {
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
}

.alert-danger { background: #faeaea; border: 1px solid #eec8c8; color: var(--red); }

.alert-success { background: var(--accent-lt); border: 1px solid #b8d8c8; color: var(--accent); }

.form-group { margin-bottom: 14px; }

.form-group label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 4px; }

.form-control {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary { background: var(--accent); color: #fff; }

.btn-secondary { background: #fff; border: 1px solid var(--border); color: var(--ink); }

.btn-sm { padding: 6px 10px; font-size: 12px; }

.btn-danger {
  background: var(--red);
  color: #fff;
}

.btn-danger:hover {
  opacity: 0.92;
}

.tbl-actions {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  align-items: center;
}

.admin-tbl-wrap {
  overflow-x: auto;
}

.tbl {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  font-size: 13px;
}

.tbl th {
  background: var(--ink);
  color: #fff;
  text-align: center;
  padding: 10px 14px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.tbl td { padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }

.tbl tr:last-child td { border-bottom: none; }

.search-bar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }

.brief-detail .block {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 18px;
  margin-bottom: 12px;
}

.brief-detail .block h3 { font-size: 14px; margin-bottom: 8px; color: var(--accent); }

.brief-detail .answer { font-size: 13px; white-space: pre-wrap; margin-top: 6px; padding: 8px; background: var(--paper); border-radius: 4px; }

.meta-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin-bottom: 20px; }

.meta-item { background: #fff; border: 1px solid var(--border); padding: 12px; border-radius: 6px; font-size: 13px; }

.meta-item strong { display: block; font-size: 10px; text-transform: uppercase; color: #888; margin-bottom: 4px; }

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-box {
  background: #fff;
  padding: 36px;
  border-radius: 10px;
  box-shadow: 0 4px 24px rgba(0,0,0,.08);
  width: 100%;
  max-width: 380px;
}

.login-box h1 { font-size: 22px; margin-bottom: 6px; }

.login-box p.sub { color: #666; font-size: 13px; margin-bottom: 24px; }