/* ============================================================
   catalog.css  —  Training Catalog page (index.html only)
   ============================================================ */

:root {
  --bg: #fafafa;
  --fg: #222;
  --muted: #666;
  --card: #fff;
  --line: #eee;
  --brand: #2f7ae5;
  --brand-dark: #1f55a3;
  --header-h: 64px;
  --shell-w: 1200px;
  --gap: 28px;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  padding: 0 40px;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu,
    "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
}

/* ── Header ──────────────────────────────────────────────── */
header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  background: #141414;
  color: #fff;
  z-index: 1000;
}

.hdr-wrap {
  max-width: var(--shell-w);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--gap);
  display: flex;
  align-items: center;
  gap: 12px;
}

header h1 { margin: 0; font-size: 18px; letter-spacing: .2px; }

.badge {
  margin-left: auto;
  background: var(--brand);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
}

/* ── Layout ──────────────────────────────────────────────── */
main { padding-top: var(--header-h); }

.shell {
  max-width: var(--shell-w);
  margin: 24px auto;
  padding: 0 var(--gap);
}

/* ── Typography ──────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: Poppins, Inter, sans-serif;
  line-height: 1.3;
  letter-spacing: -.02em;
}

h2 { font-weight: 500; font-size: 1.6rem; margin: 0 0 .5rem; }
.hero h2 { font-size: 1.8rem; }
.muted { color: var(--muted); }

/* ── Card ────────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  margin: 14px 0;
}

/* ── Course grid ─────────────────────────────────────────── */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--gap);
  align-items: stretch;
}

.course-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
}

.course-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, .06);
}

.course-link { display: block; text-decoration: none; color: inherit; }

.thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #f4f6f8;
}

.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

.pill {
  position: absolute;
  inset: auto 12px 12px auto;
  background: #fff;
  border: 1px solid var(--line);
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 12px;
}

.body {
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.title { font-weight: 600; }
.desc { font-size: 14px; color: #444; min-height: 38px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }

.tag {
  background: #eef4ff;
  color: var(--brand-dark);
  border: 1px solid #dfe8ff;
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 12px;
}

.meta { display: flex; gap: 12px; font-size: 12px; color: #666; }
.cta { margin-top: auto; display: flex; gap: 10px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  background: #fff;
}

.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }

/* ── Search & filters ────────────────────────────────────── */
.searchbar { display: flex; gap: 10px; align-items: center; }

.searchbar input {
  flex: 1 1 auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
}

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }

.chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  background: #fff;
  cursor: pointer;
}

.chip.active {
  background: #eef4ff;
  border-color: #dfe8ff;
  color: var(--brand-dark);
}

/* ── Brand logo / Footer ─────────────────────────────────── */
.brand-logo { height: 50px; margin-bottom: 10px; display: block; }

footer {
  background: #f9f9f9;
  border-top: 1px solid #ddd;
  text-align: center;
  padding: 20px 10px;
  margin-top: 40px;
}

footer img { height: 40px; margin-bottom: 8px; }
footer p { margin: 0; font-size: 14px; color: #555; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  :root { --shell-w: 100%; }
  body { padding: 0; }
  .shell { padding: 0; }
}