/* MicroForge Templates — static microsite styles.
   Mirrors the main MicroForge look: indigo-600 accent, slate neutrals,
   sticky blurred header, max-w-5xl container. No build step required. */

:root {
  --indigo-600: #4f46e5;
  --indigo-700: #4338ca;
  --indigo-400: #818cf8;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --slate-950: #020617;
  /* Office brand colors for format badges */
  --xlsx: #217346;
  --docx: #2b579a;
  --pptx: #d24726;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
  background: var(--slate-50);
  color: var(--slate-900);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: 64rem; /* max-w-5xl */
  margin: 0 auto;
  padding: 0 1rem;
}

/* ----------------------------- header ----------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--slate-200);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
}
.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
  gap: 0.75rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand .logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 0.5rem;
  background: var(--indigo-600);
  color: #fff;
  font-size: 0.875rem;
}
.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.875rem;
}
.nav a {
  padding: 0.375rem 0.5rem;
  border-radius: 0.5rem;
  color: var(--slate-600);
}
.nav a:hover { background: var(--slate-100); }
.nav a.active { color: var(--indigo-600); font-weight: 600; }

/* ----------------------------- hero ----------------------------- */
.hero {
  padding: 3.5rem 0 2rem;
  text-align: center;
}
.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.hero p {
  margin: 0 auto;
  max-width: 42rem;
  color: var(--slate-600);
  font-size: 1.05rem;
}
.hero .accent { color: var(--indigo-600); }

/* search */
.search {
  margin: 1.75rem auto 0;
  max-width: 32rem;
  position: relative;
}
.search input {
  width: 100%;
  padding: 0.7rem 1rem 0.7rem 2.4rem;
  border: 1px solid var(--slate-300);
  border-radius: 0.75rem;
  font-size: 1rem;
  background: #fff;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.search input:focus {
  border-color: var(--indigo-600);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}
.search svg {
  position: absolute;
  left: 0.8rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.1rem;
  height: 1.1rem;
  color: var(--slate-500);
}

/* ----------------------------- filter tabs ----------------------------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin: 1.75rem 0 2rem;
}
.filter-btn {
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--slate-200);
  background: #fff;
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--slate-600);
  cursor: pointer;
  transition: all 0.15s;
}
.filter-btn:hover { border-color: var(--slate-300); }
.filter-btn.active {
  background: var(--indigo-600);
  border-color: var(--indigo-600);
  color: #fff;
  font-weight: 600;
}

/* ----------------------------- grid / cards ----------------------------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
  gap: 1.25rem;
  padding-bottom: 3rem;
}
.card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--slate-200);
  border-radius: 0.9rem;
  padding: 1.25rem;
  transition: box-shadow 0.15s, transform 0.15s, border-color 0.15s;
}
.card:hover {
  box-shadow: 0 10px 30px -12px rgba(15, 23, 42, 0.25);
  transform: translateY(-2px);
  border-color: var(--slate-300);
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  color: #fff;
}
.badge .g {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.15rem;
  height: 1.15rem;
  border-radius: 0.3rem;
  background: rgba(255, 255, 255, 0.22);
  font-size: 0.7rem;
  font-weight: 800;
}
.badge.xlsx { background: var(--xlsx); }
.badge.docx { background: var(--docx); }
.badge.pptx { background: var(--pptx); }
.meta {
  font-size: 0.75rem;
  color: var(--slate-500);
}
.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.card p {
  margin: 0 0 1.1rem;
  color: var(--slate-600);
  font-size: 0.9rem;
  flex: 1;
}
.card .download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 0.9rem;
  background: var(--indigo-600);
  color: #fff;
  border-radius: 0.6rem;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.15s;
}
.card .download:hover { background: var(--indigo-700); }

.empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--slate-500);
  padding: 3rem 0;
  display: none;
}

/* ----------------------------- footer ----------------------------- */
.site-footer {
  border-top: 1px solid var(--slate-200);
  background: #fff;
}
.site-footer .inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 2rem;
  padding: 2.5rem 1rem;
  font-size: 0.875rem;
}
.site-footer h4 { margin: 0 0 0.75rem; font-size: 0.95rem; }
.site-footer p { margin: 0.5rem 0 0; color: var(--slate-500); }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 0.35rem 0; }
.site-footer a:hover { color: var(--indigo-600); }
.site-footer .copy {
  border-top: 1px solid var(--slate-200);
  text-align: center;
  font-size: 0.75rem;
  color: var(--slate-500);
  padding: 1rem;
}

/* dark mode (class on <html>) */
.dark body { background: var(--slate-950); color: var(--slate-100); }
.dark .site-header { background: rgba(2, 6, 23, 0.8); border-color: var(--slate-800); }
.dark .site-footer { background: var(--slate-950); border-color: var(--slate-800); }
.dark .site-footer .copy { border-color: var(--slate-800); }
.dark .card { background: var(--slate-900); border-color: var(--slate-800); }
.dark .card p { color: var(--slate-300); }
.dark .nav a { color: var(--slate-300); }
.dark .nav a:hover { background: var(--slate-800); }
.dark .search input { background: var(--slate-900); border-color: var(--slate-700); color: var(--slate-100); }

@media (prefers-color-scheme: dark) {
  body { background: var(--slate-950); color: var(--slate-100); }
  .site-header { background: rgba(2, 6, 23, 0.8); border-color: var(--slate-800); }
  .site-footer { background: var(--slate-950); border-color: var(--slate-800); }
  .site-footer .copy { border-color: var(--slate-800); }
  .card { background: var(--slate-900); border-color: var(--slate-800); }
  .card p { color: var(--slate-300); }
  .nav a { color: var(--slate-300); }
  .nav a:hover { background: var(--slate-800); }
  .search input { background: var(--slate-900); border-color: var(--slate-700); color: var(--slate-100); }
}