/* Base / Theme */
:root {
  --ink: #222; /* Dark text for light theme */
  --accent: #005fa3; /* Calmer blue for headings/links */
  --panel: rgba(255, 255, 255, 0.9); /* Light cards */
  --shadow: rgba(0,0,0,0.08); /* Softer shadows */
  --edge: #ddd; /* Light borders */
}

* { box-sizing: border-box; }
img { max-width: 100%; height: auto; display: block; }

body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(135deg, #f4f6f8, #ffffff); /* Light gradient */
  color: var(--ink);
  text-align: center;
}

/* Optional centered card */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
}

/* Header */
header {
  padding: 1.5rem 0 0.5rem;
}
h1 {
  font-size: 2.2rem;
  margin: 0 0 0.5rem 0;
  color: var(--accent);
}

/* Copy */
p {
  font-size: 1.1rem;
  line-height: 1.55;
  opacity: 0.95;
}
.divider {
  width: 60px;
  height: 2px;
  background-color: var(--accent);
  margin: 1.5rem auto;
}

/* Video Library */
#video-library { margin-top: 2em; }
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25em;
  margin-top: 1em;
}
.video-item {
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 12px;
  padding: 0.9em;
  box-shadow: 0 4px 12px var(--shadow);
}
.video-item iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: 8px;
  background: #000;
}
.video-item h3 {
  font-size: 1.1em;
  color: var(--accent);
  margin: 0.5em 0 0.2em;
}
.video-item p {
  font-size: 0.9em;
  color: #555;
  margin: 0;
}

/* PDF Library */
#pdf-library {
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 12px;
  padding: 2em 1.25em;
  margin-top: 2em;
}
#pdf-library h2 { color: var(--accent); margin-top: 0; }
#pdf-library p { color: #333; margin-top: 0.25em; }

.pdf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-top: 1.25em;
}
.pdf-item {
  text-align: center;
  border: 1px solid var(--edge);
  padding: 1em;
  border-radius: 10px;
  background-color: #fff;
  box-shadow: 0 4px 10px var(--shadow);
}
.pdf-item a { text-decoration: none; color: var(--ink); }
.pdf-item div { margin-top: 0.55em; }
.pdf-item span { color: var(--accent); font-size: 0.95em; }

/* Buttons */
.btn, .orders a, .usage-guide-link, button {
  display: inline-block;
  background-color: var(--accent);
  color: #fff;
  padding: 0.8em 1.3em;
  margin: 0.4em;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  line-height: 1;
  border: 1px solid var(--edge);
  box-shadow: 0 3px 8px var(--shadow);
}
.btn:hover, .orders a:hover, .usage-guide-link:hover, button:hover {
  background-color: #004b82;
}

/* Footer */
footer {
  font-size: 0.9rem;
  margin-top: 2rem;
  opacity: 0.8;
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--edge);
}
footer img {
  display: block;
  margin: 1em auto 0 auto;
}

/* Even-width button row for helper docs */
.btn-row {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.btn-row .btn { min-width: 260px; }

/* Responsive grids */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1em;
  margin-top: 1em;
  max-width: 950px;
  margin-left: auto;
  margin-right: auto;
}

.pdf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 15px;
  margin-top: 1em;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

/* Match Usage Guide & Contact JB to card style */
#usage-guide.card,
#contact.card {
  background: var(--panel) !important;
  border: 1px solid var(--edge) !important;
  border-radius: 12px !important;
  padding: 1.5em !important;
  box-shadow: 0 4px 12px var(--shadow) !important;
  max-width: 680px !important;
  margin: 2em auto !important;
  text-align: center !important;
}

/* Form fields */
#contact input,
#contact textarea {
  width: 100% !important;
  padding: 0.6em !important;
  margin-top: 0.4em !important;
  border-radius: 8px !important;
  border: 1px solid var(--edge) !important;
  background-color: #fff !important;
  color: var(--ink) !important;
}

#contact button {
  margin-top: 0.8em !important;
}

#contact textarea {
  min-height: 150px;
  resize: vertical;
}

/* Constrain bottom sections */
#order-links,
#usage-recommendation,
#usage-guide.card,
#contact.card {
  background: var(--panel) !important;
  border: 1px solid var(--edge) !important;
  border-radius: 12px !important;
  padding: 1.5em !important;
  box-shadow: 0 4px 12px var(--shadow) !important;
  max-width: 680px !important;
  margin: 2em auto !important;
  text-align: center !important;
}

/* Spacing tweaks */
#order-links {
  margin-bottom: 2.5em !important;
}

#usage-recommendation {
  margin-top: 0 !important;
  margin-bottom: 2.5em !important;
}

#usage-guide.card {
  margin-top: 0 !important;
}

#order-links h2 {
  margin-bottom: 0.6em;
}

#order-links .small {
  margin-bottom: 1.2em;
  line-height: 1.45;
  opacity: 0.95;
}

#order-links .orders {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 0.8em;
  justify-items: center;
}

#order-links .orders a {
  width: 100%;
  text-align: center;
}
/* === DARK THEME OVERRIDES === */
body.dark {
  --ink: #eaeaea;
  --accent: #88c0d0;
  --panel: rgba(255, 255, 255, 0.04);
  --shadow: rgba(0,0,0,0.4);
  --edge: #3a4252;
  background: linear-gradient(135deg, #1c1f26, #2e3440);
}

body.dark p,
body.dark #pdf-library p {
  color: #d7d7d7;
}

body.dark .pdf-item {
  background-color: rgba(255,255,255,0.04);
}

body.dark #contact input,
body.dark #contact textarea {
  background-color: rgba(255,255,255,0.08) !important;
  color: var(--ink) !important;
}
/* Subtle top section background */
#top-section {
  background: #f2f3f5; /* soft gray, tweak if needed */
  padding: 2em 1em;
  border-bottom: 1px solid #ddd;
}

#top-section h1,
#top-section h2,
#top-section p {
  color: #222; /* darker text for contrast */
}

#top-section p {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}