/* =========================================================================
   Printable A4 project sheets  (/projects/<slug>/print/)
   Screen: shows a centered A4 sheet on a gray backdrop with a Print button.
   Print:  emits a single clean A4 portrait page.
   ========================================================================= */
:root {
  --ink: #161A1D;
  --muted: rgba(22, 26, 29, 0.55);
  --rule: rgba(22, 26, 29, 0.22);
  --rule-strong: rgba(22, 26, 29, 0.28);
  --accent: #173D70;
  --sans: Arial, "Helvetica Neue", Helvetica, sans-serif;
  --serif: Georgia, "Times New Roman", Times, serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body.printpage {
  background: #5a5f63;
  font-family: var(--sans);
  color: var(--ink);
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
}

/* Screen-only toolbar */
.printbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 12px 18px;
  background: #1d2125;
}
.printbar button {
  font: inherit;
  font-size: 14px;
  padding: 8px 14px;
  border: 0;
  border-radius: 5px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
.printbar a { color: #cdd6e4; font-size: 14px; text-decoration: none; }
.printbar a:hover { text-decoration: underline; }

/* The A4 sheet */
.sheet {
  width: 210mm;
  min-height: 297mm;
  margin: 24px auto;
  padding: 14mm 16mm 12mm;
  background: #fff;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
}

.sheet__hero { margin: 0 0 5mm; }
.sheet__hero img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 4px;
  display: block;
}

.sheet__head { margin: 0 0 4mm; }
.sheet__title {
  font-size: 17pt;
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-align: center;
  margin: 0 0 2mm;
}
.sheet__year {
  font-size: 10.5pt;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  text-align: center;
  margin: 0;
}

/* Fancy divider: gradient line with a center diamond (matches the site rule) */
.sheet__rule {
  position: relative;
  height: 1px;
  margin: 0 0 4mm;
}
.sheet__rule::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--rule-strong) 18%, var(--rule-strong) 82%, transparent);
}
.sheet__rule::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 6px;
  height: 6px;
  background: var(--accent);
  transform: translate(-50%, -50%) rotate(45deg);
}

.sheet__summary {
  font-family: var(--serif);
  font-size: 12pt;
  line-height: 1.45;
  margin: 0 0 auto; /* fill remaining height so refs/footer sit lower */
}
.sheet__summary p { margin: 0 0 2.5mm; }

.sheet__refs { margin: 5mm 0 0; display: flex; gap: 6mm; align-items: flex-start; }
.sheet__qr { width: 26mm; height: 26mm; display: block; flex: none; }
.sheet__refs-body { flex: 1; min-width: 0; }
.sheet__refs h2 {
  font-size: 9.5pt;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink);
  margin: 0 0 2mm;
}
.sheet__refs ol { margin: 0; padding: 0; list-style: none; }
.sheet__refs li { font-size: 9.5pt; line-height: 1.4; margin: 0 0 1.5mm; color: #2a2e31; }
.sheet__refs em { font-style: italic; }

.sheet__footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 10mm;
  margin-top: 4mm;
  padding-top: 2.5mm;
  border-top: 1px solid var(--rule);
}
.sheet__footer-text { display: flex; flex-direction: column; gap: 1mm; font-size: 8pt; }
.sheet__org { font-weight: 700; color: var(--ink); font-size: 9pt; }
.sheet__url { font-weight: 400; color: var(--muted); }
.sheet__logos { display: flex; align-items: center; gap: 5mm; }
.sheet__logo-imperial { height: 4.5mm; width: auto; display: block; }
.sheet__logo-aim { height: 10mm; width: 10mm; display: block; }

@page { size: A4 portrait; margin: 14mm 16mm 12mm; }
@media print {
  body.printpage { background: #fff; }
  .printbar { display: none; }
  .sheet {
    width: auto;
    margin: 0;
    min-height: auto;
    padding: 0;          /* @page provides the margins now */
    box-shadow: none;
  }
}