:root {
  color-scheme: dark;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #1f2937 0, #020617 55%, #000 100%);
  color: #e5e7eb;
  display: flex;
  align-items: center;
  justify-content: center;
}
main {
  width: 100%;
  max-width: 720px;
  padding: 2.5rem 1.5rem 3rem;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.logo {
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.logo-mark {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  border: 1px solid rgba(248, 250, 252, 0.5);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
}
.pill {
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border: 1px solid rgba(148, 163, 184, 0.5);
  color: #9ca3af;
}

/* simple top nav for future pages */
.nav {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1.5rem;
  font-size: 0.8rem;
  color: #9ca3af;
}
.nav a {
  color: #9ca3af;
  text-decoration: none;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
}
.nav a:hover {
  background: rgba(148, 163, 184, 0.15);
  color: #e5e7eb;
}
.nav a[aria-current="page"] {
  background: rgba(148, 163, 184, 0.25);
  color: #f9fafb;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(2.2rem, 5vw, 3rem);
}
h2 {
  margin: 0 0 1.1rem;
  font-weight: 400;
  font-size: 1rem;
  color: #9ca3af;
}
p {
  margin: 0 0 1rem;
  line-height: 1.7;
}
.grid {
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 720px) {
  .grid {
    grid-template-columns: minmax(0, 2.2fr) minmax(0, 1.8fr);
    align-items: start;
    gap: 2.75rem;
  }
}
.card {
  border-radius: 1.25rem;
  border: 1px solid rgba(148, 163, 184, 0.35);
  background: linear-gradient(
    135deg,
    rgba(15, 23, 42, 0.9),
    rgba(17, 24, 39, 0.6)
  );
  padding: 1.5rem 1.75rem;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.5);
}
.cta-row {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.9);
  color: #e5e7eb;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #f97316, #facc15);
  border-color: transparent;
  color: #111827;
  font-weight: 600;
}
.email {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  font-size: 0.9rem;
  padding: 0.45rem 0.7rem;
  border-radius: 0.5rem;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(55, 65, 81, 0.9);
  display: inline-block;
  margin-top: 0.35rem;
}
.meta {
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: #6b7280;
}
.meta strong {
  color: #e5e7eb;
  font-weight: 500;
}
.list {
  margin: 0.5rem 0 0;
  padding-left: 1.1rem;
  font-size: 0.9rem;
  color: #9ca3af;
}
.list li {
  margin-bottom: 0.35rem;
}
footer {
  margin-top: 2rem;
  font-size: 0.75rem;
  color: #4b5563;
  text-align: center;
}
a.inline {
  color: #93c5fd;
  text-decoration: none;
}
a.inline:hover {
  text-decoration: underline;
}
.icon-wrapper {
  text-align: center;
  margin: 1.25rem 0 1.5rem;
}
.icon-wrapper img {
  max-width: 40vw;
  height: auto;
  border-radius: 24px;
}

/* Breadcrumb navigation (backwards nav) */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0 0 1.25rem;
  font-size: 0.8rem;
  color: #6b7280;
}

.breadcrumb a {
  color: #9ca3af;
  text-decoration: none;
}

.breadcrumb a:hover {
  color: #e5e7eb;
  text-decoration: underline;
}

.breadcrumb span[aria-hidden="true"] {
  opacity: 0.5;
  padding: 0 0.1rem;
}

/* Feature list: panel-style items, not clickable */
ul.list {
  list-style: none;          /* no bullets */
  margin: 1.25rem 0 0;
  padding: 0;
  font-size: 0.9rem;
  color: #e5e7eb;            /* a bit brighter than #9ca3af */
}

ul.list li {
  border-radius: 0.75rem;
  padding: 0.65rem 0.9rem;
  margin-bottom: 0.45rem;

  /* Slightly lighter than the card/page background */
  background: rgba(31, 41, 55, 0.9);      /* around #1f2937 */

  /* Brighter, more visible border */
  border: 1px solid rgba(148, 163, 184, 0.75);  /* ~slate-300/400 */

  /* No hover-state: non-interactive */
}

/* Default unordered lists (non-feature lists) */
ul:not(.list) {
  margin: 0 0 1.1rem 1.25rem;  /* keep a nice left indent + bottom gap */
  padding-left: 0;             /* rely on margin for indent */
}

ul:not(.list) li {
  margin-bottom: 0.2rem;       /* extra vertical spacing between items */
  line-height: 1.4;            /* match paragraph line height so it feels consistent */
}

/* Gallery layout */
.gallery h1 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.gallery p {
  margin-bottom: 1.5rem;
}

.gallery-item {
  margin-bottom: 1.75rem;
}

/* Make the figure shrink-wrap its contents, then center it */
.gallery-figure {
  display: table;     /* shrink to content width */
  margin: 0.9rem auto 0;
}

/* Your image is already display:block; keep it */
.gallery-image {
  display: block;
  width: 100%;
  margin: 0 auto;
}

/* Caption aligns with image width */
.gallery-figure figcaption {
  display: block;
  margin-top: 0.5rem;
  text-align: center;
  max-width: 100%;    /* match the figure/image width */
}

/* Lightbox overlay for gallery image preview */
.lightbox {
  position: fixed;
  inset: 0;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;

  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms ease-out;
}

.lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-inner {
  max-width: 100%;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
}

.lightbox img {
  max-width: 100%;
  max-height: calc(100vh - 5rem);
  border-radius: 0.75rem;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.9),
    0 0 0 1px rgba(148, 163, 184, 0.6);
}

.lightbox-caption {
  align-self: stretch;
  text-align: left;
  font-size: 0.85rem;
  color: #e5e7eb;
  opacity: 0.85;
}

.lightbox-close {
  border: none;
  border-radius: 999px;
  width: 32px;
  height: 32px;
  font-size: 1.4rem;
  line-height: 1;
  padding: 0;
  cursor: pointer;
  background: rgba(15, 23, 42, 0.95);
  color: #e5e7eb;
  box-shadow:
    0 3px 8px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(148, 163, 184, 0.7);
}

.lightbox-close:hover {
  background: rgba(31, 41, 55, 0.95);
}
/* Let long buttons wrap inside CTA rows so they don't overflow */
.cta-row .btn {
  white-space: normal;
  text-align: center;
  max-width: 100%;
}
/* Wider layout on desktop */
@media (min-width: 900px) {
  main {
    max-width: 980px;   /* try 960–1100 to taste */
  }
}

@media (min-width: 1200px) {
  main {
    max-width: 1100px;  /* keeps it comfy on big monitors */
  }
}
.gallery-image { width: 100%; margin: 0 auto; display: block; }

.gallery-image.size-s { max-width: 520px; }
.gallery-image.size-m { max-width: 720px; }
.gallery-image.size-l { max-width: 920px; }
/* Multi-column list (semantic UL, no table) */
.multi-col-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;

  column-width: 14rem;   /* target column width; browser chooses column count */
  column-gap: 1.25rem;

  /* optional, helps readability in long lists */
  font-size: 0.9rem;
  color: #e5e7eb;
}

.multi-col-list li {
  break-inside: avoid;   /* don't split an item across columns */
  padding: 0.25rem 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.25); /* optional */
}

/* Responsive tweak: fewer columns on small screens */
@media (max-width: 520px) {
  .multi-col-list {
    column-width: auto;
    columns: 1;
  }
}