:root {
  /* Paper + ink */
  --bg: #c6bd9f;            /* sand / topo paper */
  --panel: rgba(255, 255, 255, 0.85);
  --text: #1f2933;          /* near-black ink */
  --muted: #5f6b73;
  --accent: rgb(102, 156, 54);        /* muted trail green */
  --border: #d2ccbd;

  /* Contour lines */
  --contour: rgba(60, 72, 80, 0.08);
  --contour-strong: rgba(60, 72, 80, 0.12);
}

* {
  box-sizing: border-box;
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  line-height: 1.6;

  /* Topographic paper background */
  background-color: var(--bg);
  background-image:
    repeating-radial-gradient(
      circle at 25% 30%,
      var(--contour) 0px,
      var(--contour) 1px,
      transparent 1px,
      transparent 26px
    ),
    repeating-radial-gradient(
      circle at 70% 65%,
      var(--contour-strong) 0px,
      var(--contour-strong) 1px,
      transparent 1px,
      transparent 40px
    );
}

a {
  color: var(--accent);
  text-decoration: none;
}

header {
  border-bottom: 1px solid var(--border);
  background: rgba(180, 167, 126, 0.85);
  backdrop-filter: blur(8px);
  overflow: hidden;     /* Ensures no scrollbars if image is slightly taller */
}

.page-header {
  display: block;       /* Remove any inline spacing */
  width: 100vw;         /* Full width of viewport */
  height: auto;         /* Maintain aspect ratio */
  max-height: 240px;    /* Optional: cap the height for a “thin” look */
  object-fit: cover;    /* Makes sure it fills width nicely */
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  font-weight: 600;
}

.nav-title {
  color: rgb(102, 156, 54);
  vertical-align: middle
}

/* ---------- Index layout ---------- */

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem 5rem;
}

.lead {
  color: var(--muted);
  max-width: 720px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 0rem;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}

.card p {
  color: var(--muted);
  font-size: 0.95rem;
}

/* ---------- Docs layout ---------- */

.docs-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2.5rem;
}

.docs-toc {
  position: sticky;
  top: 2rem;
  align-self: start;
  border-left: 2px solid var(--border);
  padding-left: 1rem;
}

.docs-toc a {
  display: block;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0.6rem;
}

.docs-toc a:hover {
  color: var(--text);
}

.docs-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem 2.5rem;
}

.docs-content h1 {
  font-size: 2rem;
  margin-top: 0;
}

.docs-content h2 {
  margin-top: 3rem;
  font-size: 1.4rem;
}

.docs-content p {
  max-width: 760px;
  color: var(--muted);
}

.docs-image {
  width: 240px;
  max-width: 100%;
  display: block;
  margin: 1.5rem 0;
  border-radius: 10px;
  cursor: zoom-in;
  transition: transform 0.2s ease;
  transform-origin: left center;
}

.docs-image.is-zoomed {
  transform: scale(2);
  cursor: zoom-out;
}

code {
  background: #f4f2ec;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85rem;
}

/* ---------- Footer ---------- */

footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .docs-layout {
    grid-template-columns: 1fr;
  }

  .docs-toc {
    position: static;
    margin-bottom: 2rem;
  }

  .docs-content {
    padding: 1.75rem 1.5rem;
  }

  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;          /* controls space between image and text */
  line-height: 1;

  padding: 0.5rem 1rem;
  border-radius: 8px;

  background-color: rgb(102, 156, 54);
  color: white;
  text-decoration: none;
  font-weight: 600;
  width: 210px !important;

  transition: background-color 0.15s ease, transform 0.05s ease;
}

.button img {
  width: 120px;          /* larger badge */
  height: auto;
  display: block;
}

.button:active {
  transform: translateY(1px);
}

.bmc-btn-container {
  display: inline-block;
  vertical-align: middle;
}

.bmc-btn {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;

  padding: 0.8rem 1.9rem !important;
  border-radius: 10px !important;

  background-color: #669c36 !important;
  color: white !important;
  text-decoration: none !important;
  font-weight: 600 !important;
  font-size: 1rem !important;

  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  transition: background-color 0.15s ease, transform 0.05s ease, box-shadow 0.15s ease;
  height: 56px !important;
}

.bmc-btn span.bmc-btn-text {
  margin-left: 0.25rem;
}

.bmc-btn:hover {
  background-color: #558535 !important;
  box-shadow: 0 3px 6px rgba(0,0,0,0.15);
}

.bmc-btn:active {
  transform: translateY(1px) !important;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;

  width: 100%;
  max-width: 600px;   /* desktop can breathe */
  margin: 0 auto;
  box-sizing: border-box;
}

.video-tile {
  display: flex;
  flex-direction: column;
}

.video-tile video {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 8px;
}

.video-frame {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: 8px;
}

.video-frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

figure {
  margin: 0;
  text-align: center;
}

figcaption {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: #555;
}