/* themes/facebook.css — tema estilo Facebook */
:root{
  --brand:#1877F2;        /* azul Facebook */
  --brand-dark:#0d65d9;   /* azul escuro */
  --grad: linear-gradient(90deg, var(--brand-dark), var(--brand));
  --card:#ffffff;         /* fundo dos cards branco */
  --bg:#f0f2f5;           /* fundo principal */
  --txt:#1c1e21;          /* texto escuro */
  --muted:#65676b;        /* texto secundário */
  --line:#ddd;            /* linhas sutis */
  --font-size-base: 17px;
  --radius: 10px;
  --login-accent: var(--brand);
}

/* Body */
body {
  background: var(--bg);
  color: var(--txt);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

/* Navbar azul */
.navbar { 
  background: var(--brand) !important; 
}
.navbar .navbar-brand,
.navbar .nav-link,
.navbar .btn { 
  color:#fff !important; 
  font-weight:500;
}

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 1px 2px rgba(0,0,0,.05);
}

/* Botões */
.btn-grad {
  background: var(--grad) !important;
  border: none !important;
  color: #fff !important;
  font-weight: 500;
}
.btn-outline {
  border: 1px solid var(--brand);
  color: var(--brand-dark);
  background: #fff;
}
.btn-outline:hover {
  background:#e7f0ff;
  color: var(--brand-dark);
}

/* Links */
a, .link-muted:hover { color: var(--brand-dark); }

/* Inputs estilo Facebook */
.form-control, .form-select {
  background: #fff;
  color: var(--txt);
  border-color: var(--line);
  border-radius: var(--radius);
}
.form-control:focus, .form-select:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 .2rem rgba(24,119,242,.25);
}

/* Avatar circular */
.avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  background: #f0f0f0;
  border: 1px solid #ddd;
}

/* Footer */
footer {
  background:#fff;
  border-top:1px solid #ddd;
}
footer small a {
  color: var(--muted);
}
footer small a:hover {
  color: var(--brand-dark);
}