/* PI cards (home) and PI publications page */
.pi-section { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.pi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 22px; margin-top: 8px; }
.pi-tile { background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden;
  display: flex; flex-direction: column; box-shadow: var(--shadow); transition: transform .18s ease, box-shadow .18s ease, border-color .18s; }
.pi-tile:hover { transform: translateY(-3px); border-color: var(--ku-blue); box-shadow: 0 2px 4px rgba(6,42,61,.08), 0 16px 32px rgba(6,42,61,.12); }
.pi-media { display: block; aspect-ratio: 4 / 3.4; background: linear-gradient(135deg, var(--ink), var(--ink-2)); overflow: hidden; }
.pi-media img { width: 100%; height: 100%; object-fit: cover; object-position: center 20%; display: block; transition: transform .35s ease; }
.pi-tile:hover .pi-media img { transform: scale(1.03); }
.pi-initials { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%;
  font-family: var(--serif); font-size: 3rem; letter-spacing: .04em; color: var(--brass); }
.pi-initials.sm { width: 56px; height: 56px; border-radius: 50%; font-size: 1.1rem; background: var(--ink); }
.pi-info { padding: 18px 20px 6px; flex: 1; }
.pi-info h3 { font-size: 1.28rem; margin-bottom: 4px; }
.pi-info h3 a:hover { color: var(--ku-blue-d); }
.pi-role { color: var(--slate); font-size: .9rem; line-height: 1.4; }
.pi-lab { display: inline-block; margin-top: 10px; font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; color: var(--brass-2); font-weight: 600; }
.pi-cta { display: flex; align-items: center; gap: 6px; padding: 14px 20px; margin-top: 10px; border-top: 1px solid var(--line);
  font-size: .88rem; color: var(--slate); }
.pi-cta .pi-count { font-family: var(--serif); font-size: 1.35rem; color: var(--ink); font-weight: 600; }
.pi-cta .arw { margin-inline-start: auto; color: var(--ku-blue-d); transition: transform .18s; }
.pi-cta:hover .arw { transform: translateX(4px); }
html[dir="rtl"] .pi-cta:hover .arw { transform: translateX(-4px) scaleX(-1); }
html[dir="rtl"] .pi-cta .arw { transform: scaleX(-1); }

.pi-hero { background: linear-gradient(135deg, var(--ink), var(--ink-2)); color: #fff; padding: 48px 0; }
.pi-hero .wrap { display: flex; gap: 32px; align-items: center; flex-wrap: wrap; }
.pi-hero-photo { width: 150px; height: 150px; border-radius: 50%; overflow: hidden; border: 3px solid var(--brass); flex: none; background: var(--ink-2); }
.pi-hero-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 20%; }
.pi-hero h1 { color: #fff; margin: 8px 0 4px; font-size: clamp(1.8rem, 4vw, 2.6rem); }
.pi-hero .pi-role { color: rgba(255,255,255,.8); }
.pi-hero .pi-lab { color: var(--brass); }
.pi-hero .back-link { color: rgba(255,255,255,.75); font-size: .85rem; }
.pi-stat { margin-top: 14px; color: rgba(255,255,255,.85); }
.pi-stat b { font-family: var(--serif); font-size: 1.6rem; color: #fff; margin-inline-end: 4px; }
.pi-pubs { padding: 36px 24px 64px; }
.pi-note { color: var(--slate); font-size: .88rem; margin: 0 0 18px; }
.pi-note a { color: var(--ku-blue-d); margin-inline-start: 8px; }
.pi-year { margin-bottom: 26px; }
.pi-year h2 { font-size: 1.4rem; padding-bottom: 6px; border-bottom: 2px solid var(--brass); display: inline-block; margin-bottom: 10px; }
.pi-q { display: inline-block; margin-inline-start: 8px; padding: 1px 7px; border-radius: 999px; font-size: .7rem; font-weight: 600;
  background: #e8f6fd; color: var(--ku-blue-d); border: 1px solid #bfe6f8; vertical-align: middle; }
@media (max-width: 600px) {
  .pi-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .pi-info { padding: 12px 12px 4px; }
  .pi-info h3 { font-size: 1.05rem; }
  .pi-cta { padding: 10px 12px; }
  .pi-hero .wrap { gap: 18px; }
  .pi-hero-photo { width: 110px; height: 110px; }
}
@media (max-width: 380px) { .pi-grid { grid-template-columns: 1fr; } }