:root {
  --color-bg: #f4f6f9;
  --color-surface: #ffffff;
  --color-border: #e4e7ec;
  --color-text: #1a2233;
  --color-text-muted: #667085;
  --color-primary: #1e3a5f;
  --color-primary-dark: #14283f;
  --color-accent: #0f9d78;
  --color-accent-dark: #0b7d5f;
  --color-danger: #d84343;
  --color-warning: #b8860b;
  --color-info: #2563eb;
  --radius: 10px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 4px 16px rgba(16, 24, 40, 0.08);
  --sidebar-width: 250px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.5;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-dark); }

/* ---------------- Guest layout (login / verify) ---------------- */
.guest-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: 24px;
}

.guest-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 40px 36px;
}

.guest-card .brand {
  text-align: center;
  margin-bottom: 28px;
}

.guest-card .brand h1 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0;
}

.guest-card .brand span {
  display: block;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.guest-card h2 {
  font-size: 17px;
  margin: 0 0 20px;
  color: var(--color-text);
}

.guest-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ---------------- Form elements ---------------- */
.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 11px 14px;
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: #fff;
  color: var(--color-text);
  transition: border-color .15s ease, box-shadow .15s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.12);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 11px 20px;
  border-radius: 8px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s ease, transform .05s ease;
}

.btn:active { transform: translateY(1px); }
.btn-block { width: 100%; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-accent { background: var(--color-accent); color: #fff; }
.btn-accent:hover { background: var(--color-accent-dark); }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--color-border); color: var(--color-text); }
.btn-sm { padding: 7px 12px; font-size: 13px; }

/* ---------------- Authenticated app layout ---------------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-width);
  background: var(--color-primary-dark);
  color: #fff;
  padding: 24px 0;
  flex-shrink: 0;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  overflow-y: auto;
}

.sidebar .brand {
  padding: 0 24px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 16px;
}

.sidebar .brand h1 { font-size: 16px; margin: 0; color: #fff; }
.sidebar .brand span { font-size: 12px; color: rgba(255,255,255,0.55); }

.sidebar nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  font-weight: 500;
  border-left: 3px solid transparent;
}

.sidebar nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.sidebar nav a.active {
  background: rgba(15,157,120,0.15);
  border-left-color: var(--color-accent);
  color: #fff;
}

.sidebar .brmid-badge {
  margin: 20px 24px 0;
  padding: 10px 12px;
  background: rgba(255,255,255,0.06);
  border-radius: 8px;
  font-size: 12px;
  color: rgba(255,255,255,0.7);
}

.main {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 28px 32px 60px;
  width: calc(100% - var(--sidebar-width));
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.topbar h2 { margin: 0; font-size: 22px; color: var(--color-primary); }
.topbar .user-chip { font-size: 13px; color: var(--color-text-muted); }

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  margin-bottom: 24px;
}

.card h3 { margin-top: 0; font-size: 16px; color: var(--color-text); }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.stat-card .label { font-size: 13px; color: var(--color-text-muted); margin-bottom: 6px; }
.stat-card .value { font-size: 26px; font-weight: 700; color: var(--color-primary); }

/* Tables */
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  padding: 10px 12px;
  border-bottom: 2px solid var(--color-border);
}
table.data td { padding: 12px; border-bottom: 1px solid var(--color-border); }
table.data tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge-success { background: #e6f6ef; color: var(--color-accent-dark); }
.badge-warning { background: #fdf2df; color: var(--color-warning); }
.badge-danger { background: #fbe9e9; color: var(--color-danger); }
.badge-info { background: #e8f0fe; color: var(--color-info); }

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--color-text-muted);
}

/* Flash alerts */
.alert {
  padding: 13px 16px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 20px;
}
.alert-success { background: #e6f6ef; color: #0b5c41; }
.alert-error   { background: #fbe9e9; color: #7d2020; }
.alert-info    { background: #e8f0fe; color: #1c3f8f; }

@media (max-width: 860px) {
  .sidebar { position: static; width: 100%; }
  .main { margin-left: 0; width: 100%; }
  .app-shell { flex-direction: column; }
}