:root {
  --bg: #1e1e2e;
  --surface: #313244;
  --border: #45475a;
  --text: #cdd6f4;
  --muted: #6c7086;
  --accent: #89b4fa;
  --accent-dim: #1d2a3f;
  --green: #a6e3a1;
  --red: #f38ba8;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

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

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

header a { color: var(--text); font-weight: 600; }
header .sep { color: var(--muted); }

.breadcrumb { display: flex; align-items: center; gap: 0.25rem; flex-wrap: wrap; flex: 1; }
.breadcrumb a { color: var(--accent); }

.edit-btn {
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.875rem;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
.edit-btn:hover { background: var(--accent); color: var(--bg); text-decoration: none; }

main { max-width: 860px; margin: 0 auto; padding: 1.5rem 1rem; }

.content { margin-bottom: 2rem; }

/* Markdown rendered content */
.content h1, .content h2, .content h3,
.content h4, .content h5, .content h6 {
  margin: 1.25rem 0 0.5rem;
  line-height: 1.3;
}
.content h1 { font-size: 1.75rem; border-bottom: 1px solid var(--border); padding-bottom: 0.25rem; }
.content h2 { font-size: 1.4rem; }
.content h3 { font-size: 1.15rem; }
.content p { margin: 0.75rem 0; }
.content ul, .content ol { margin: 0.75rem 0 0.75rem 1.5rem; }
.content li { margin: 0.25rem 0; }
.content blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.25rem 1rem;
  color: var(--muted);
  margin: 0.75rem 0;
}
.content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--surface);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}
.content pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
  margin: 0.75rem 0;
}
.content pre code { background: none; padding: 0; }
.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.75rem 0;
  font-size: 0.9rem;
}
.content th, .content td {
  border: 1px solid var(--border);
  padding: 0.4rem 0.75rem;
  text-align: left;
}
.content th { background: var(--surface); }
.content hr { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }
.content img { max-width: 100%; border-radius: 4px; }

/* File/folder listing */
.listing { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.listing-header {
  background: var(--surface);
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}
.listing-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
}
.listing-item:hover { background: var(--surface); }
.listing-item .icon { font-size: 1rem; width: 1.25rem; text-align: center; flex-shrink: 0; }
.listing-item a { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.listing-item .meta { color: var(--muted); font-size: 0.8rem; white-space: nowrap; }

/* Edit form */
.edit-form { display: flex; flex-direction: column; gap: 1rem; }
.edit-form textarea {
  width: 100%;
  min-height: 60vh;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  padding: 1rem;
  resize: vertical;
  outline: none;
}
.edit-form textarea:focus { border-color: var(--accent); }
.form-actions { display: flex; gap: 0.75rem; }
.btn-save {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 0.6rem 1.5rem;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}
.btn-save:hover { opacity: 0.9; }
.btn-cancel {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 0.6rem 1.25rem;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.btn-cancel:hover { border-color: var(--text); color: var(--text); text-decoration: none; }

.empty { color: var(--muted); font-style: italic; padding: 1rem; text-align: center; }

@media (max-width: 600px) {
  header { padding: 0.5rem 0.75rem; }
  main { padding: 1rem 0.75rem; }
  .edit-form textarea { min-height: 50vh; }
}