:root {
  --color-bg:             #f7f6f2;
  --color-surface:        #ffffff;
  --color-surface-2:      #f9f8f5;
  --color-border:         rgba(40,37,29,0.10);
  --color-divider:        rgba(40,37,29,0.07);
  --color-text:           #28251d;
  --color-text-muted:     #7a7974;
  --color-primary:        #01696f;
  --color-primary-hover:  #0c4e54;
  --color-primary-highlight: #e4f0ef;
  --color-pdf:            #c0392b;
  --color-pdf-bg:         #fdf0ee;
  --color-link:           #1a5276;
  --color-link-bg:        #eef4fb;
  --radius-sm:  0.375rem;
  --radius-md:  0.5rem;
  --radius-lg:  0.75rem;
  --radius-xl:  1rem;
  --shadow-sm:  0 1px 3px rgba(40,37,29,0.07);
  --shadow-md:  0 4px 16px rgba(40,37,29,0.08);
}

.doc-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  padding: 0.25rem 0;
  max-width: 680px;
  overflow: hidden;
}

/* optional */
.doc-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.25rem 0.75rem;
  border-bottom: 1px solid var(--color-divider);
}
.doc-card-header svg { color: var(--color-text-muted); flex-shrink: 0; }
.doc-card-header h2 {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.doc-list {
  list-style: none;
  padding: 0.25rem 0;
}

.doc-list li {
  position: relative;
  margin-bottom: 0 !important;
}
.doc-list li + li::before {
  content: '';
  display: block;
  height: 1px;
  background: var(--color-divider);
  margin: 0 1.25rem;
}

.doc-list a {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.875rem 1.25rem;
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-md);
  margin: 0.2rem 0.4rem;
  transition: background 0.15s ease, color 0.15s ease;
  line-height: 1.45;
}
.doc-list a:hover {
  background: var(--color-primary-highlight);
  color: var(--color-primary-hover);
}
.doc-list a:hover .doc-icon { color: var(--color-primary); }
.doc-list a:hover .doc-arrow { opacity: 1; transform: translateX(0); }

.doc-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  transition: color 0.15s;
}
.doc-icon.is-pdf {
  color: var(--color-pdf);
  background: var(--color-pdf-bg);
  border-color: transparent;
}
.doc-icon.is-link {
  color: var(--color-link);
  background: var(--color-link-bg);
  border-color: transparent;
}

.doc-meta { flex: 1; min-width: 0; }
.doc-title {
  font-size: 1rem;
  font-weight: 500;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.filetype {
  font-size:0.72rem;color:var(--color-text-muted);font-weight:400;
  margin-left: 6px;
}
.doc-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.2rem;
  padding: 0.1rem 0.45rem;
  border-radius: var(--radius-full, 9999px);
  line-height: 1.6;
}
.doc-badge.pdf {
  background: var(--color-pdf-bg);
  color: var(--color-pdf);
}
.doc-badge.link {
  background: var(--color-link-bg);
  color: var(--color-link);
}

.doc-arrow {
  flex-shrink: 0;
  color: var(--color-primary);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.15s, transform 0.15s;
}

.doc-card-footer {
  padding: 0.6rem 1.25rem;
  border-top: 1px solid var(--color-divider);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}