* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #f4f6f9;
  color: #23303d;
}

/* ---------- Login ---------- */
.login-body {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; background: linear-gradient(135deg, #1f3a5f, #2c6fb3);
}
.login-card {
  background: #fff; padding: 2.2rem 2rem; border-radius: 12px;
  width: 340px; box-shadow: 0 12px 40px rgba(0,0,0,.25);
}
.login-title { margin: 0; text-align: center; color: #1f3a5f; }
.login-sub { margin: .25rem 0 1.4rem; text-align: center; color: #6b7a8d; }
.login-card label { display: block; margin: .6rem 0 .25rem; font-size: .85rem; }
.login-card input[type=text], .login-card input[type=password] {
  width: 100%; padding: .6rem .7rem; border: 1px solid #cdd6e0;
  border-radius: 7px; font-size: .95rem;
}
.remember { display: flex; align-items: center; gap: .4rem; font-size: .8rem;
  margin: .8rem 0; }
.btn-primary {
  width: 100%; padding: .65rem; border: 0; border-radius: 7px; cursor: pointer;
  background: #2c6fb3; color: #fff; font-size: .95rem; font-weight: 600;
}
.btn-primary:hover { background: #245c94; }

/* ---------- Top bar (horizontal menu) ---------- */
.topbar {
  display: flex; align-items: center; gap: 1.5rem;
  background: #1f3a5f; color: #fff; padding: 0 1.2rem; height: 56px;
}
.brand { font-weight: 700; font-size: 1.15rem; }
.top-nav { display: flex; gap: .35rem; flex: 1; }
.top-link {
  color: #cdd9e8; text-decoration: none; padding: .45rem .7rem;
  border-radius: 6px; font-size: .9rem;
}
.top-link:hover { background: rgba(255,255,255,.1); color: #fff; }
.top-link.active { background: #2c6fb3; color: #fff; }
.user-box { display: flex; align-items: center; gap: .8rem; }
.user-name { font-size: .88rem; color: #dfe8f2; }
.logout {
  color: #fff; text-decoration: none; border: 1px solid rgba(255,255,255,.4);
  padding: .3rem .7rem; border-radius: 6px; font-size: .82rem;
}
.logout:hover { background: rgba(255,255,255,.15); }

/* ---------- Layout + sidebar (vertical menu) ---------- */
.layout { display: flex; min-height: calc(100vh - 56px); }
.sidebar { width: 220px; background: #fff; border-right: 1px solid #e3e9f0;
  padding: 1rem .6rem; }
.sidebar ul { list-style: none; margin: 0; padding: 0; }
.side-link {
  display: flex; align-items: center; gap: .6rem; text-decoration: none;
  color: #3c4b5c; padding: .6rem .7rem; border-radius: 8px; margin-bottom: .2rem;
  font-size: .92rem;
}
.side-link:hover { background: #eef3f9; }
.side-link.active { background: #2c6fb3; color: #fff; }
.icon { font-size: 1.05rem; }

/* ---------- Content ---------- */
.content { flex: 1; padding: 1.6rem 2rem; }
.page-title { margin-top: 0; color: #1f3a5f; }
.page-desc { color: #61707f; }

/* ---------- Alerts ---------- */
.alert { padding: .7rem .9rem; border-radius: 8px; margin-bottom: 1rem;
  font-size: .9rem; }
.alert-danger { background: #fde8e8; color: #a12626; border: 1px solid #f5c2c2; }
.alert-success { background: #e6f6ec; color: #1d7a3c; border: 1px solid #bfe6cd; }
.alert-warning { background: #fff5e0; color: #8a5a00; border: 1px solid #f2d99b; }


/* ---------- Cards / forms / tables (Settings) ---------- */
.card { background: #fff; border: 1px solid #e3e9f0; border-radius: 10px;
  padding: 1.2rem 1.4rem; margin-bottom: 1.4rem; max-width: 760px; }
.card-title { margin: 0 0 1rem; color: #1f3a5f; font-size: 1.1rem; }
.sub-title { margin: 1.4rem 0 .6rem; color: #1f3a5f; font-size: 1rem; }
.form-grid { display: flex; flex-direction: column; gap: .7rem; }
.form-grid label { display: flex; flex-direction: column; gap: .3rem;
  font-size: .85rem; color: #3c4b5c; }
.form-grid input[type=text], .form-grid input[type=email],
.form-grid input[type=password] {
  padding: .55rem .7rem; border: 1px solid #cdd6e0; border-radius: 7px;
  font-size: .92rem; }
.form-grid label.check { flex-direction: row; align-items: center; gap: .4rem; }
.btn-inline { width: auto; padding: .55rem 1.1rem; }
.data-table { width: 100%; border-collapse: collapse; margin-bottom: 1rem;
  font-size: .9rem; }
.data-table th, .data-table td { text-align: left; padding: .55rem .6rem;
  border-bottom: 1px solid #edf1f6; }
.data-table th { color: #61707f; font-weight: 600; }
.row-actions { display: flex; gap: .4rem; align-items: center; }
.row-actions form { margin: 0; }
.btn-sm { display: inline-block; padding: .35rem .7rem; border-radius: 6px;
  border: 1px solid #cdd6e0; background: #f4f6f9; color: #2c4763; cursor: pointer;
  font-size: .8rem; text-decoration: none; }
.btn-sm:hover { background: #e9eef4; }
.btn-danger { border-color: #f0b6b6; background: #fdecec; color: #a12626; }
.btn-danger:hover { background: #f9dede; }