/* ---------------------------------------------------------
   sangat.io — plain-text / windowed theme
   Off-white + grey, cool accents. Monospace throughout.
   No webfonts.
   --------------------------------------------------------- */

:root {
  --bg:       #e8e6e1;   /* desktop grey */
  --paper:    #f7f6f3;   /* off-white page */
  --paper-2:  #fbfaf8;   /* window body */
  --ink:      #1b1b1a;
  --ink-soft: #3d3c39;
  --muted:    #86837c;
  --rule:     #c9c6bf;
  --rule-dk:  #a5a29a;

  --blue:     #185fa5;
  --blue-dk:  #0c447c;
  --teal:     #0f6e56;
  --link:     #185fa5;
  --link-vis: #534ab7;

  --shadow:   3px 3px 0 rgba(27, 27, 26, 0.34);

  --mono: "Courier New", Courier, "Nimbus Mono PS", monospace;
  --maxw: 760px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 26px 10px 60px;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.55;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  background: var(--paper);
  border: 1px solid var(--rule-dk);
  padding: 20px 24px 28px;
}

a { color: var(--link); }
a:visited { color: var(--link-vis); }
a:hover { background: var(--ink); color: var(--paper); text-decoration: none; }

hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 20px 0;
}

/* ---------- Header ---------- */
.site-title { text-align: center; margin: 6px 0 4px; }

.site-title .logo {
  display: inline-block;
  font-family: "Noto Sans Gurmukhi", var(--mono);
  font-size: 3.9rem;
  line-height: 1.2;
  font-weight: 300;
  color: var(--ink);
}

.subtitle {
  text-align: center;
  margin-top: 4px;
}

.subtitle .name {
  display: block;
  font-size: 1.15rem;
  font-weight: bold;
  color: var(--ink);
}

.subtitle .role {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 2px;
}

.nav {
  text-align: center;
  font-size: 0.82rem;
  margin: 14px 0 2px;
}

.nav a { text-decoration: none; padding: 0 3px; }
.nav .sep { color: var(--rule-dk); }

/* ---------- About ---------- */
.bio { margin: 0 0 12px; color: var(--ink-soft); }

.links-line { font-size: 0.85rem; text-align: center; }
.links-line .sep { color: var(--rule-dk); }

/* ---------- Section headers ---------- */
.section-title {
  font-size: 0.85rem;
  font-weight: bold;
  color: var(--muted);
  text-align: center;
  margin: 6px 0 20px;
  letter-spacing: 0.04em;
}

/* ---------- Project windows ---------- */
.project {
  border: 1px solid var(--rule-dk);
  background: var(--paper-2);
  box-shadow: var(--shadow);
  margin-bottom: 26px;
}

.title-bar {
  background: var(--bg);
  border-bottom: 1px solid var(--rule-dk);
  padding: 8px 12px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.title-bar h3 {
  margin: 0;
  font-size: 0.98rem;
  font-weight: bold;
  font-family: var(--mono);
  color: var(--ink);
}

.title-bar .dates {
  font-size: 0.72rem;
  color: var(--muted);
  white-space: nowrap;
  padding-top: 2px;
}

.project-type {
  font-size: 0.75rem;
  color: var(--blue);
  margin-top: 2px;
}

.win-body { padding: 12px 15px 15px; }

.summary { margin: 0; color: var(--ink-soft); }

.win-body ul {
  margin: 8px 0 0;
  padding-left: 18px;
}

.win-body li {
  margin-bottom: 5px;
  color: var(--ink-soft);
}

.win-body li::marker { color: var(--blue); }

/* ---------- Gallery ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
  align-items: start;
  margin-top: 14px;
}

/* RFID: two squares filling the column */
.gallery.rfid { grid-template-columns: 1fr 1fr; }

/* S/H: three squares filling the column */
.gallery.sh { grid-template-columns: repeat(3, 1fr); }

/* Simulation figures: always one per row, full column width */
.gallery.stacked { grid-template-columns: 1fr; }

.gallery figure { margin: 0; min-width: 0; }

.gallery img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--rule-dk);
  cursor: pointer;
}

.gallery img:hover { border-color: var(--ink); }

.gallery figcaption {
  font-size: 0.63rem;
  color: var(--muted);
  margin-top: 3px;
  line-height: 1.35;
}

/* Collage layouts: columns stretch so every block bottom-aligns into a rectangle.
   Column ratios are tuned so the images fill their cells with minimal trimming. */
.gallery.amp,
.gallery.onken {
  align-items: stretch;
}

.gallery.amp figure,
.gallery.onken figure {
  display: flex;
  flex-direction: column;
}

.gallery.amp figure img,
.gallery.onken figure img {
  flex: 1 1 auto;
  min-height: 0;
  object-fit: cover;
}

/* Class-A amp: hero across the top, then chassis | stacked pair | pcb */
.gallery.amp {
  grid-template-columns: 1.163fr 1fr 1.163fr;
}

.gallery.amp .hero { grid-column: 1 / -1; }
.gallery.amp .hero img { flex: 0 0 auto; object-fit: contain; }

.gallery.amp .stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.gallery.amp .stack figure { margin: 0; flex: 1 1 auto; }

/* Onken: large hero at right, front + crossover at left, driver beneath them */
.gallery.onken {
  grid-template-columns: 1fr 1fr 2.206fr;
}

.gallery.onken .a { grid-column: 1; grid-row: 1; }
.gallery.onken .b { grid-column: 2; grid-row: 1; }
.gallery.onken .c { grid-column: 1 / 3; grid-row: 2; }
.gallery.onken .hero { grid-column: 3; grid-row: 1 / 3; }

/* Photometer: two portraits above a full-width bench shot */
.gallery.photometer {
  grid-template-columns: 1fr 1fr;
}

.gallery.photometer .wide { grid-column: 1 / -1; }

/* ---------- Lightbox ---------- */
#lightbox {
  position: fixed;
  inset: 0;
  background: rgba(27, 27, 26, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 24px;
  cursor: zoom-out;
}
#lightbox.open { display: flex; }
#lightbox img { max-width: 100%; max-height: 100%; border: 1px solid var(--paper); }

/* ---------- Footer ---------- */
footer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 8px;
}
footer .contact-links { margin-top: 4px; }
footer .contact-links a { margin: 0 4px; }
footer .contact-links .sep { color: var(--rule-dk); }
footer .stamp { margin-top: 10px; color: var(--rule-dk); }

@media (max-width: 560px) {
  body { padding: 10px 6px 40px; font-size: 14px; }
  .wrap { padding: 14px 12px 20px; }
  .site-title .logo { font-size: 2.6rem; }
  .title-bar { flex-direction: column; align-items: flex-start; gap: 2px; }

  .gallery.amp,
  .gallery.onken,
  .gallery.sh {
    grid-template-columns: 1fr 1fr;
  }
  .gallery.amp .hero,
  .gallery.onken .hero { grid-column: 1 / -1; grid-row: auto; }
  .gallery.onken .a,
  .gallery.onken .b,
  .gallery.onken .c { grid-column: auto; grid-row: auto; }
}