:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --border: #e2e5ea;
  --text: #1b2430;
  --muted: #6b7684;
  --primary: #1f7a4d;       /* WhatsApp-ish green, used sparingly */
  --primary-dark: #15603a;
  --danger: #c0392b;
  --warning: #b8860b;
  --radius: 10px;
  --sidebar-w: 230px;
}

* { 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);
  font-size: 14.5px;
  line-height: 1.5;
}
a { color: var(--primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.sidebar {
  width: var(--sidebar-w);
  background: #10251c;
  color: #d7e5dc;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
}
.sidebar-brand {
  font-weight: 700;
  font-size: 1.1rem;
  padding: 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  color: #fff;
}
.sidebar-nav { display: flex; flex-direction: column; padding: 10px 0; flex: 1; overflow-y: auto; }
.sidebar-nav a {
  color: #bcd0c4;
  padding: 10px 18px;
  font-size: 0.92rem;
}
.sidebar-nav a:hover { background: rgba(255,255,255,0.06); text-decoration: none; }
.sidebar-nav a.active { background: var(--primary); color: #fff; font-weight: 600; }
.sidebar-footer { padding: 14px 18px; border-top: 1px solid rgba(255,255,255,0.08); font-size: 0.85rem; }
.sidebar-user { margin-bottom: 8px; }
.muted { color: #8ba497; font-size: 0.8rem; }
.btn-link { color: #e7f0ea; text-decoration: underline; }

.main-content { flex: 1; min-width: 0; }
.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 16px 28px;
}
.topbar h1 { margin: 0; font-size: 1.3rem; }
.content-area { padding: 24px 28px; max-width: 1200px; }

.flash { margin: 0 28px 16px; padding: 10px 14px; border-radius: var(--radius); font-size: 0.9rem; }
.flash-success { background: #e4f6ec; color: #1c6b43; border: 1px solid #b7e4c9; }
.flash-error { background: #fdeceb; color: #a4342a; border: 1px solid #f3c2bd; }
.flash-info { background: #eaf2fb; color: #2a5b8a; border: 1px solid #c4dcf3; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.panel h2 { margin-top: 0; font-size: 1.05rem; }

.grid { display: grid; gap: 16px; }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) {
  .grid-cols-3, .grid-cols-2 { grid-template-columns: 1fr; }
}

.stat-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.stat-card .stat-value { font-size: 1.8rem; font-weight: 700; }
.stat-card .stat-label { color: var(--muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: .03em; }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: .03em; }
tr:hover td { background: #fafbfc; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 0.76rem; font-weight: 600; }
.badge-success { background: #e4f6ec; color: #1c6b43; }
.badge-warning { background: #fdf3df; color: #92670b; }
.badge-danger { background: #fdeceb; color: #a4342a; }
.badge-muted { background: #eef0f2; color: #5a6472; }

.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 9px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; }
.btn-secondary { background: #eef0f2; color: var(--text); }
.btn-secondary:hover { background: #e2e5ea; }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #9c2d21; }
.btn-sm { padding: 5px 10px; font-size: 0.8rem; }

form .field { margin-bottom: 14px; }
label { display: block; font-weight: 600; margin-bottom: 5px; font-size: 0.88rem; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=time], input[type=datetime-local], input[type=file], select, textarea {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 0.92rem;
  font-family: inherit;
  background: #fff;
}
textarea { resize: vertical; min-height: 90px; }
.hint { color: var(--muted); font-size: 0.8rem; margin-top: 4px; }

.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #10251c, #1f7a4d);
}
.login-box {
  background: #fff; padding: 36px 32px; border-radius: 14px; width: 100%; max-width: 380px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}
.login-box h1 { font-size: 1.3rem; margin-top: 0; text-align: center; }

.qr-box { text-align: center; padding: 20px; border: 1px dashed var(--border); border-radius: var(--radius); }
.qr-box img { max-width: 240px; margin: 0 auto; }

.pill-row { display: flex; gap: 8px; flex-wrap: wrap; }
.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 10px; }