:root {
  --bg: #f5f6f8;
  --sidebar-bg: #1a1d29;
  --sidebar-text: #b9bdcc;
  --sidebar-text-active: #ffffff;
  --accent: #4f6df5;
  --accent-hover: #3d59e0;
  --card-bg: #ffffff;
  --border: #e4e6ec;
  --text: #1d2030;
  --text-muted: #6b7080;
  --danger: #e0524d;
  --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);
}

.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 230px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  padding: 24px 16px;
  flex-shrink: 0;
}

.sidebar h1 {
  font-size: 16px;
  color: #fff;
  margin: 0 0 28px 8px;
  font-weight: 600;
}

.sidebar nav a {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 4px;
}

.sidebar nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.sidebar nav a.active { background: var(--accent); color: #fff; }

.sidebar .logout {
  margin-top: 24px;
  display: block;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--sidebar-text);
  text-decoration: none;
}
.sidebar .logout:hover { color: #fff; }

.content { flex: 1; padding: 32px 40px; max-width: 1100px; }

.page-title { font-size: 22px; font-weight: 600; margin: 0 0 24px; }

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

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.stat-card .value { font-size: 28px; font-weight: 700; }
.stat-card .label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 500; font-size: 12px; text-transform: uppercase; }

.bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.bar-label { width: 220px; font-size: 13px; flex-shrink: 0; }
.bar-track { flex: 1; background: #eef0f5; border-radius: 6px; height: 10px; overflow: hidden; }
.bar-fill { background: var(--accent); height: 100%; }
.bar-count { width: 36px; text-align: right; font-size: 13px; color: var(--text-muted); }

form .field { margin-bottom: 16px; }
label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--text-muted); }

input[type=text], input[type=password], input[type=url], input[type=number], textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}

textarea { min-height: 110px; resize: vertical; }

input[type=file] { font-size: 13px; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--accent-hover); }
.btn.secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn.danger { background: var(--danger); }

.row { display: flex; gap: 12px; align-items: center; }
.row.between { justify-content: space-between; }

.badge {
  display: inline-block;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #eef0f5;
  color: var(--text-muted);
}
.badge.ok { background: #e3f6ea; color: #1f8a4d; }
.badge.warn { background: #fdeeee; color: var(--danger); }

.product-thumb {
  width: 48px; height: 48px; object-fit: cover; border-radius: 6px; background: #eef0f5;
}

.flash {
  background: #e3f6ea;
  color: #1f8a4d;
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
}

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.login-card {
  width: 320px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.login-card h1 { font-size: 18px; margin: 0 0 20px; }

.error-text { color: var(--danger); font-size: 13px; margin-top: 10px; }

.help-text { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.button-row-fields { border: 1px dashed var(--border); border-radius: 8px; padding: 12px; margin-bottom: 10px; }