// ─── Inputs ────────────────────────────────────────────────────────────────────
#let recipient   = sys.inputs.at("name",         default: "First Name, Last Name")
#let course      = sys.inputs.at("course",       default: "Course Title")
#let date_str    = sys.inputs.at("date",         default: "MM/DD/YY")
#let length_str  = sys.inputs.at("length",       default: "2 hours")
#let cert_no     = sys.inputs.at("cert_no",      default: "000000-000000-00000")
#let ref_no      = sys.inputs.at("ref_no",       default: "000X")
#let instructors = sys.inputs.at("instructors",  default: "")

// ─── Page ──────────────────────────────────────────────────────────────────────
#set page(
  paper:   "a4",
  flipped: true,
  margin:  (left: 38pt, right: 38pt, top: 28pt, bottom: 38pt),
)

#set text(font: "Arial", size: 11pt, fill: black)
#set par(justify: false, leading: 1.2em)

// ─── Header: logo (left) + certificate numbers (right) ────────────────────────
#grid(
  columns: (1fr, auto),
  align:   (left + top, right + top),
  image("philpro-logo.png", width: 180pt),
  [
    #set text(size: 13pt)
    Certificate No: #cert_no \
    Reference Number: #ref_no
  ],
)

#v(18pt)

// ─── CERTIFICATE OF COMPLETION label ──────────────────────────────────────────
#text(size: 12pt, fill: rgb("#555555"))[CERTIFICATE OF COMPLETION]

#v(5pt)

// ─── Course title ─────────────────────────────────────────────────────────────
#block[
  #set par(leading: 0.65em)
  #text(size: 25pt, weight: "bold")[#course]
]

#v(12pt)

// ─── Instructors (only when provided) ────────────────────────────────────────
#if instructors != "" [
  #text(size: 13pt, fill: rgb("#555555"))[Instructors]
  #linebreak()
  #text(size: 15pt, weight: "bold")[#instructors]
]

#v(1fr)

// ─── Bottom: recipient, date, duration, issuer ────────────────────────────────
#text(size: 15pt, weight: "bold")[#recipient]
#linebreak()
#text(size: 12pt)[*Date Issued:* #date_str]
#linebreak()
#if length_str != "" and length_str != "0 mins" [
  #text(size: 12pt)[*Duration:* #length_str]
  #linebreak()
]
#text(size: 12pt)[*Issued by:* Philproperties]