:root {
  --bg: #121212;
  --panel: #181816;
  --panel-raised: #1e1e1b;
  --border: #2a2a26;
  --border-soft: #232320;
  --text: #ececea;
  --text-dim: #98968c;
  --text-faint: #6b6a63;
  --accent: #c98a4b;
  --accent-soft: #2b241a;
  --accent-text: #e8b784;
  --error: #d9705a;
  --error-soft: #2b1f1c;
  --ok: #8fae7a;
  --ok-soft: #1f271c;
  --radius: 4px;
  --radius-lg: 8px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f5f1;
    --panel: #ffffff;
    --panel-raised: #fdfbf7;
    --border: #e6e1d7;
    --border-soft: #eee9de;
    --text: #26241f;
    --text-dim: #7a7669;
    --text-faint: #a29d8d;
    --accent: #a8672c;
    --accent-soft: #f1e3d0;
    --accent-text: #8a5623;
    --error: #b8452f;
    --error-soft: #f6e6e2;
    --ok: #5c7a48;
    --ok-soft: #e7ede0;
  }
}

* { box-sizing: border-box; }

html { color-scheme: dark light; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.link-plain { color: inherit; text-decoration: none; }

.topbar {
  padding: 1.1rem 1.75rem;
  border-bottom: 1px solid var(--border-soft);
}

.topbar h1 {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.subtitle { margin: 0.2rem 0 0; color: var(--text-faint); font-size: 0.85rem; }

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 2.5rem 1.75rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.5rem;
}

.panel h2 {
  margin-top: 0;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.form-upload {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: end;
}

.form-upload label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

input[type="text"], input[type="number"], input[type="file"] {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
}

input[type="text"]:focus, input[type="number"]:focus {
  outline: none;
  border-color: var(--accent);
}

button, .btn {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.5rem 0.95rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.85rem;
  text-decoration: none;
  display: inline-block;
  transition: border-color 0.15s ease, color 0.15s ease;
}

button:hover, .btn:hover { border-color: var(--text-dim); text-decoration: none; }

.btn-secondary, button.btn-secondary {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border-soft);
}

.btn-primary, button[type="submit"], #btn-guardar {
  background: var(--accent);
  color: #16130d;
  border: 1px solid var(--accent);
  font-weight: 600;
}
.btn-primary:hover, button[type="submit"]:hover, #btn-guardar:hover {
  border-color: var(--accent-text);
  color: #16130d;
}

.file-list { list-style: none; margin: 0; padding: 0; }

.file-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border-soft);
}

.file-item:last-child { border-bottom: none; }

.file-name { font-weight: 500; color: var(--text); }
.file-name:hover { color: var(--accent-text); }
.file-meta { color: var(--text-faint); font-size: 0.78rem; }
.file-actions { margin-left: auto; display: flex; gap: 1rem; font-size: 0.8rem; }
.file-actions a { color: var(--text-dim); }
.file-actions a:hover { color: var(--accent-text); }

.empty { color: var(--text-faint); font-size: 0.9rem; }

.alert {
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  margin-bottom: 1rem;
  border: 1px solid transparent;
}
.alert-error { background: var(--error-soft); color: var(--error); border-color: var(--error-soft); }
.alert-ok { background: var(--ok-soft); color: var(--ok); border-color: var(--ok-soft); }

.doc-toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-soft);
}

.doc-toolbar h2 { margin: 0 0 0.3rem; font-size: 1.15rem; font-weight: 600; }
.doc-actions { display: flex; gap: 0.5rem; }

.markdown-body {
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 2rem 2.25rem;
  line-height: 1.7;
}

.markdown-body table {
  border-collapse: collapse;
  width: 100%;
  overflow-x: auto;
  display: block;
}
.markdown-body th, .markdown-body td {
  border: 1px solid var(--border-soft);
  padding: 0.45rem 0.75rem;
}
.markdown-body pre {
  background: var(--bg);
  padding: 0.9rem 1rem;
  border-radius: var(--radius);
  overflow-x: auto;
  border: 1px solid var(--border-soft);
}
.markdown-body code {
  background: var(--accent-soft);
  color: var(--accent-text);
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius);
  font-size: 0.88em;
}
.markdown-body pre code { background: none; padding: 0; color: inherit; }
.markdown-body .mermaid { background: white; padding: 1rem; border-radius: var(--radius); }

.editor-extra-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
  padding: 0.75rem 0.9rem;
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
}

.editor-extra-toolbar label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.guardar-estado { font-size: 0.8rem; color: var(--text-faint); }
.guardar-estado.ok { color: var(--ok); }
.guardar-estado.error { color: var(--error); }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}
.modal.hidden { display: none; }
.modal-content {
  background: var(--panel-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  min-width: 260px;
}
.modal-content h3 {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-dim);
}
.modal-content label {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}
.modal-actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 0.5rem; }

.history-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.history-table th, .history-table td {
  padding: 0.65rem 0.95rem;
  border-bottom: 1px solid var(--border-soft);
  text-align: left;
  font-size: 0.88rem;
}
.history-table tr:last-child td { border-bottom: none; }
.history-table th {
  color: var(--text-faint);
  font-weight: 600;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.tag-actual {
  background: var(--accent-soft);
  color: var(--accent-text);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.inline-form { display: flex; gap: 0.4rem; align-items: center; }
.inline-form input[type="text"] { width: 120px; padding: 0.35rem 0.5rem; font-size: 0.8rem; }
.inline-form button { padding: 0.35rem 0.65rem; font-size: 0.78rem; }

.snippet-hint {
  position: absolute;
  z-index: 100;
  background: var(--panel-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  min-width: 180px;
}
.snippet-hint.hidden { display: none; }
.snippet-hint-item {
  padding: 0.4rem 0.7rem;
  font-size: 0.85rem;
  cursor: pointer;
}
.snippet-hint-item:hover { background: var(--accent-soft); }
.snippet-hint-item .hint-key { color: var(--text-faint); font-size: 0.75rem; }