/* =========================================================
   A published notebook (view.html): read-only, in the site's look.
   Site tokens only: css/style.css and the Appearance presets (theme,
   typeface, palette, text size from js/ambient.js) set them.
   ========================================================= */
.nbv-body {
  --nbv-hl-yellow: #f2c94c;
  --nbv-hl-green: #4fc987;
  --nbv-hl-blue: #6b9eff;
  --nbv-hl-pink: #e87aaa;
  --nbv-r: 12px;
}
[data-theme="light"] .nbv-body {
  --nbv-hl-yellow: #d9a90f;
  --nbv-hl-green: #1f9d57;
  --nbv-hl-blue: #2f6fe0;
  --nbv-hl-pink: #d43f7f;
}
.nbv-body [hidden] { display: none !important; }

.nbv {
  max-width: 760px;
  margin: 0 auto;
  padding: 44px 28px 40px;
  padding-bottom: calc(40px + env(safe-area-inset-bottom, 0px));
  color: var(--text);
  overflow-wrap: break-word;
}
@media (max-width: 640px) { .nbv { padding: 26px 16px 32px; padding-bottom: calc(32px + env(safe-area-inset-bottom, 0px)); } }
.nbv-loading { padding: 18vh 0; text-align: center; color: var(--text-muted); font: 400 0.9rem/1.5 var(--font-heading); }

/* ── The cover ── */
.nbv-cover { margin-bottom: 30px; }
.nbv-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font: 400 0.68rem/1.2 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.nbv-tile {
  --tc: var(--purple);
  flex: none;
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  color: var(--tc);
  background: color-mix(in srgb, var(--tc) 15%, transparent);
  font: 700 0.92rem/1 var(--font-mono);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  -webkit-user-select: none;
  user-select: none;
}
.nbv-tile[data-tint="warm"] { --tc: var(--warm); }
.nbv-tile[data-tint="teal"] { --tc: var(--teal); }
.nbv-tile[data-tint="purple"] { --tc: var(--purple); }
.nbv-tile[data-tint="blue"] { --tc: var(--blue); }
.nbv-tile[data-tint="green"] { --tc: var(--green); }
.nbv-tile[data-tint="pink"] { --tc: var(--pink); }
.nbv-tile[data-tint="mute"] { --tc: var(--text-dim); }
.nbv-tile-emoji { background: none; font: 400 2rem/1 inherit; width: auto; letter-spacing: 0; text-transform: none; }
.nbv-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5.2vw, 2.6rem);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--text);
}
.nbv-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  margin: 14px 0 0;
  font: 400 0.76rem/1.5 var(--font-mono);
  color: var(--text-muted);
}
.nbv-meta a { color: var(--teal); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--teal) 40%, transparent); text-underline-offset: 3px; }
.nbv-meta a:hover { text-decoration-color: var(--teal); }
.nbv-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0 0; padding: 0; list-style: none; }
.nbv-tags li {
  padding: 3px 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font: 400 0.72rem/1.4 var(--font-mono);
  color: var(--text-dim);
}

/* ── Contents ── */
.nbv-toc {
  margin: 0 0 34px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--nbv-r);
  background: var(--bg-elevated);
}
.nbv-toc-t { margin: 0 0 8px; font: 400 0.66rem/1.2 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); }
.nbv-toc ol { margin: 0; padding: 0 0 0 1.3rem; display: flex; flex-direction: column; gap: 4px; }
.nbv-toc li { font: 500 0.92rem/1.45 var(--font-heading); color: var(--text-dim); }
.nbv-toc a { color: var(--text); }
.nbv-toc a:hover { color: var(--purple); }

/* ── Chapters and blocks ── */
.nbv-ch { margin: 0 0 42px; scroll-margin-top: 72px; }
.nbv-ch-title {
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  font: 700 1.3rem/1.3 var(--font-heading);
  letter-spacing: -0.01em;
  color: var(--text);
}
.nbv-b { margin: 0 0 12px; }
.nbv-txt { white-space: pre-wrap; }
.nbv-p { font-size: 1rem; line-height: 1.72; color: var(--text); }
.nbv-h1 { margin: 26px 0 10px; font-family: var(--font-display); font-size: 1.7rem; font-weight: 400; line-height: 1.2; }
.nbv-h2 { margin: 22px 0 8px; font: 700 1.32rem/1.3 var(--font-heading); letter-spacing: -0.012em; }
.nbv-h3 { margin: 18px 0 6px; font: 700 1.08rem/1.4 var(--font-heading); }
.nbv-ch > .nbv-b:first-of-type.nbv-h1, .nbv-ch > .nbv-b:first-of-type.nbv-h2, .nbv-ch > .nbv-b:first-of-type.nbv-h3 { margin-top: 4px; }

/* Lists and to-dos */
.nbv-li { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 6px; padding-left: calc(var(--n, 0) * 26px); line-height: 1.7; }
@media (max-width: 640px) { .nbv-li { padding-left: calc(var(--n, 0) * 18px); } }
.nbv-mark { flex: none; min-width: 18px; height: 1.7em; display: inline-flex; align-items: center; justify-content: center; color: var(--text-dim); }
.nbv-mark-dot::before { content: '•'; font-size: 1.25rem; line-height: 1; }
.nbv-li[data-n="1"] .nbv-mark-dot::before, .nbv-li[data-n="3"] .nbv-mark-dot::before { content: '◦'; }
.nbv-li[data-n="2"] .nbv-mark-dot::before, .nbv-li[data-n="4"] .nbv-mark-dot::before { content: '▪'; font-size: 0.9rem; }
.nbv-mark-num { min-width: 22px; font: 400 0.84rem/1 var(--font-mono); color: var(--text-muted); }
.nbv-check {
  flex: none;
  width: 17px;
  height: 17px;
  margin: 0.36em 1px 0;
  border: 1.5px solid var(--border-hover, var(--border));
  border-radius: 5px;
  display: inline-grid;
  place-items: center;
  color: #fff;
  font: 700 0.72rem/1 var(--font-heading);
}
.nbv-todo.done .nbv-check { background: var(--purple); border-color: var(--purple); }
.nbv-todo.done .nbv-li-body { color: var(--text-muted); text-decoration: line-through; }
.nbv-li-body { flex: 1; min-width: 0; }

/* Quotes and highlights */
.nbv-quote {
  margin: 14px 0;
  padding: 8px 14px 8px 16px;
  border-left: 3px solid var(--purple);
  font-style: italic;
  font-size: 1.04rem;
  line-height: 1.7;
  color: var(--text-dim);
}
.nbv-quote[data-hl] { border-left-width: 4px; border-radius: 0 10px 10px 0; font-style: normal; color: var(--text); }
.nbv-quote[data-hl="yellow"] { border-left-color: var(--nbv-hl-yellow); background: color-mix(in srgb, var(--nbv-hl-yellow) 9%, transparent); }
.nbv-quote[data-hl="green"] { border-left-color: var(--nbv-hl-green); background: color-mix(in srgb, var(--nbv-hl-green) 9%, transparent); }
.nbv-quote[data-hl="blue"] { border-left-color: var(--nbv-hl-blue); background: color-mix(in srgb, var(--nbv-hl-blue) 9%, transparent); }
.nbv-quote[data-hl="pink"] { border-left-color: var(--nbv-hl-pink); background: color-mix(in srgb, var(--nbv-hl-pink) 9%, transparent); }
.nbv-note { display: flex; gap: 6px; margin: -4px 0 14px; padding-left: 18px; line-height: 1.7; }
.nbv-note-mark { flex: none; width: 18px; color: var(--purple); }
.nbv-note[data-hl="yellow"] .nbv-note-mark { color: var(--nbv-hl-yellow); }
.nbv-note[data-hl="green"] .nbv-note-mark { color: var(--nbv-hl-green); }
.nbv-note[data-hl="blue"] .nbv-note-mark { color: var(--nbv-hl-blue); }
.nbv-note[data-hl="pink"] .nbv-note-mark { color: var(--nbv-hl-pink); }
@media (max-width: 640px) { .nbv-note { padding-left: 10px; } }

/* Callouts */
.nbv-callout {
  display: flex;
  gap: 10px;
  margin: 14px 0;
  padding: 14px 16px;
  border: 1px solid color-mix(in srgb, var(--purple) 28%, transparent);
  border-radius: var(--nbv-r);
  background: color-mix(in srgb, var(--purple) 7%, transparent);
  line-height: 1.65;
  color: var(--text-dim);
}
.nbv-callout[data-v="warn"] { border-color: color-mix(in srgb, var(--warm) 38%, transparent); background: color-mix(in srgb, var(--warm) 8%, transparent); }
.nbv-callout[data-v="check"] { border-color: color-mix(in srgb, var(--green) 32%, transparent); background: color-mix(in srgb, var(--green) 7%, transparent); }
.nbv-callout[data-v="info"] { border-color: color-mix(in srgb, var(--blue) 32%, transparent); background: color-mix(in srgb, var(--blue) 7%, transparent); }
.nbv-callout-em { flex: none; font-size: 1.15rem; line-height: 1.5; }

/* Cards: the front, then the back */
.nbv-card {
  margin: 14px 0;
  border: 1px solid color-mix(in srgb, var(--purple) 30%, var(--border));
  border-radius: var(--nbv-r);
  background: color-mix(in srgb, var(--purple) 5%, transparent);
  overflow: hidden;
}
.nbv-card-side { padding: 11px 16px; line-height: 1.6; }
.nbv-card-side + .nbv-card-side { border-top: 1px dashed color-mix(in srgb, var(--purple) 30%, var(--border)); }
.nbv-card-k { display: block; margin-bottom: 3px; font: 400 0.64rem/1.2 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: color-mix(in srgb, var(--purple) 75%, var(--text-muted)); }
.nbv-card-front { font-weight: 600; color: var(--text); }
.nbv-card-back { color: var(--text-dim); }
.nbv-cloze {
  background: color-mix(in srgb, var(--purple) 14%, transparent);
  border-bottom: 1.5px dashed color-mix(in srgb, var(--purple) 70%, transparent);
  border-radius: 3px 3px 0 0;
  padding: 0 1px;
  color: inherit;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

/* Where it came from */
.nbv-prov { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 0; }
.nbv-quote .nbv-prov, .nbv-callout .nbv-prov { margin-top: 8px; }
.nbv-chip {
  --c: var(--teal);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 24px;
  max-width: 100%;
  padding: 0 10px 0 8px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--c) 30%, transparent);
  background: color-mix(in srgb, var(--c) 7%, transparent);
  color: color-mix(in srgb, var(--c) 78%, var(--text));
  font: 400 0.7rem/1 var(--font-mono);
  font-style: normal;
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nbv-chip:hover, .nbv-chip:focus-visible { background: color-mix(in srgb, var(--c) 16%, transparent); border-color: color-mix(in srgb, var(--c) 55%, transparent); color: var(--c); outline: none; }
.nbv-chip:focus-visible { box-shadow: 0 0 0 2px color-mix(in srgb, var(--c) 45%, transparent); }
.nbv-chip svg { width: 9px; height: 9px; flex: none; }
.nbv-chip[data-k="web"] { --c: var(--blue); }
.nbv-chip[data-k="listen"] { --c: var(--warm); }
.nbv-chip[data-k="card"] { --c: var(--purple); cursor: default; }
@media (pointer: coarse) { .nbv-chip { min-height: 30px; font-size: 0.74rem; } }

/* Code */
.nbv-code {
  --ck-text: #e7e2d9; --ck-dim: #a7a094; --ck-com: #857f74;
  --ck-kw: #b07aff; --ck-str: #5ce88e; --ck-num: #e8a87c; --ck-fn: #6b9eff;
  --ck-attr: #5cc9b5; --ck-var: #e8d06a; --ck-tag: #e87aaa; --ck-del: #e86a6a;
  margin: 14px 0;
  border: 1px solid var(--border);
  border-radius: var(--nbv-r);
  background: var(--bg-code, #0a0c12);
  overflow: hidden;
}
.nbv-code-lang { display: block; padding: 8px 16px 0; font: 400 0.64rem/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ck-dim); }
.nbv-code pre {
  margin: 0;
  padding: 8px 16px 14px;
  overflow-x: auto;
  color: var(--ck-text);
  font: 400 0.84rem/1.6 var(--font-mono);
  tab-size: 4;
  white-space: pre;
  scrollbar-width: thin;
}
.nbv-code code { font: inherit; color: inherit; background: none; padding: 0; }
.nbv-code .token.comment, .nbv-code .token.prolog, .nbv-code .token.doctype, .nbv-code .token.cdata { color: var(--ck-com); font-style: italic; }
.nbv-code .token.punctuation { color: var(--ck-dim); }
.nbv-code .token.keyword, .nbv-code .token.atrule, .nbv-code .token.important, .nbv-code .token.rule { color: var(--ck-kw); }
.nbv-code .token.string, .nbv-code .token.char, .nbv-code .token.attr-value, .nbv-code .token.template-string, .nbv-code .token.inserted { color: var(--ck-str); }
.nbv-code .token.number, .nbv-code .token.boolean, .nbv-code .token.constant, .nbv-code .token.symbol, .nbv-code .token.unit { color: var(--ck-num); }
.nbv-code .token.function, .nbv-code .token.class-name, .nbv-code .token.selector { color: var(--ck-fn); }
.nbv-code .token.builtin, .nbv-code .token.property, .nbv-code .token.attr-name, .nbv-code .token.operator, .nbv-code .token.entity, .nbv-code .token.url { color: var(--ck-attr); }
.nbv-code .token.variable, .nbv-code .token.regex, .nbv-code .token.parameter { color: var(--ck-var); }
.nbv-code .token.tag, .nbv-code .token.namespace { color: var(--ck-tag); }
.nbv-code .token.deleted { color: var(--ck-del); }
.nbv-ic {
  padding: 1px 5px;
  border-radius: 5px;
  background: color-mix(in srgb, var(--text) 8%, transparent);
  font: 400 0.88em/1.5 var(--font-mono);
}

/* Equations */
.nbv-math {
  position: relative;
  margin: 14px 0;
  padding: 10px 4px;
  overflow-x: auto;
  overflow-y: hidden;
  text-align: center;
  color: var(--text);
  scrollbar-width: thin;
}
.nbv-math .katex-display { margin: 0; }
.nbv-math .katex-display > .katex { font-size: 1.14em; }
.nbv-math:not(.rendered), .nbv-imath:not(.rendered) { font-family: var(--font-mono); color: var(--text-dim); white-space: pre-wrap; overflow-wrap: anywhere; }
.nbv-math:not(.rendered) { font-size: 0.88rem; text-align: left; padding: 10px 14px; border: 1px dashed var(--border); border-radius: var(--nbv-r); }
.nbv-imath:not(.rendered) { font-size: 0.9em; }
.nbv-imath .katex { font-size: 1.05em; }

/* Pictures */
.nbv-fig { margin: 16px 0; border: 1px solid var(--border); border-radius: var(--nbv-r); background: var(--bg-elevated); overflow: hidden; }
.nbv-fig img { display: block; width: 100%; height: auto; }
.nbv-fig figcaption { padding: 8px 14px; border-top: 1px solid var(--border); font-size: 0.82rem; line-height: 1.5; text-align: center; color: var(--text-muted); }
.nbv-words { border-top: 1px solid var(--border); font-size: 0.84rem; color: var(--text-dim); }
.nbv-words summary { display: flex; align-items: center; min-height: 40px; padding: 0 14px; cursor: pointer; font: 600 0.8rem/1.2 var(--font-heading); color: var(--text-dim); }
.nbv-words summary:hover { color: var(--text); }
.nbv-words p { margin: 0; padding: 0 14px 12px; line-height: 1.6; white-space: pre-wrap; }

/* Voice notes: the transcript (the recording stays private) */
.nbv-voice {
  margin: 14px 0;
  padding: 12px 16px;
  border: 1px solid color-mix(in srgb, var(--warm) 30%, var(--border));
  border-radius: var(--nbv-r);
  background: color-mix(in srgb, var(--warm) 6%, transparent);
}
.nbv-voice-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; font: 400 0.72rem/1.3 var(--font-mono); letter-spacing: 0.04em; color: color-mix(in srgb, var(--warm) 80%, var(--text-muted)); }
.nbv-voice-head svg { width: 14px; height: 14px; flex: none; }
.nbv-voice-text { margin: 0; line-height: 1.7; color: var(--text); white-space: pre-wrap; }
.nbv-voice-none { margin: 0; font-size: 0.86rem; color: var(--text-muted); }

/* A note shown from another notebook */
.nbv-embed { margin: 14px 0; padding: 10px 14px; border: 1px solid var(--border); border-left: 3px solid var(--teal); border-radius: 0 var(--nbv-r) var(--nbv-r) 0; }
.nbv-embed > .nbv-b:last-of-type { margin-bottom: 6px; }
.nbv-embed-from { margin: 0; font: 400 0.72rem/1.4 var(--font-mono); color: var(--text-muted); }

.nbv-hr { height: 1px; margin: 22px 0; border: 0; background: var(--border); }
.nbv-none { color: var(--text-muted); font-style: italic; }

/* Links inside notes */
.nbv-a { color: var(--teal); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--teal) 40%, transparent); text-underline-offset: 3px; }
.nbv-a:hover { text-decoration-color: var(--teal); }

/* ── The page's footer ── */
.nbv-foot {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--text-muted);
}
.nbv-foot p { margin: 0; }
.nbv-made {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid color-mix(in srgb, var(--purple) 40%, var(--border));
  border-radius: 999px;
  color: var(--text);
  font: 600 0.84rem/1.2 var(--font-heading);
  text-decoration: none;
}
.nbv-made:hover { border-color: var(--purple); background: color-mix(in srgb, var(--purple) 8%, transparent); }
.nbv-made-star { color: var(--purple); }

/* ── Not published / could not load ── */
.nbv-missing { max-width: 480px; margin: 12vh auto 0; text-align: center; }
.nbv-missing-glyph { font-size: 2.6rem; line-height: 1; margin-bottom: 14px; }
.nbv-missing h1 { margin: 0 0 10px; font-family: var(--font-display); font-weight: 400; font-size: 1.9rem; line-height: 1.2; color: var(--text); }
.nbv-missing p { margin: 0 0 22px; color: var(--text-dim); line-height: 1.6; }
.nbv-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border: 0;
  border-radius: var(--nbv-r);
  background: var(--purple);
  color: #fff;
  font: 600 0.9rem/1 var(--font-heading);
  text-decoration: none;
  cursor: pointer;
}
.nbv-btn:hover { filter: brightness(1.06); }

@media print {
  .nbv { padding: 0; max-width: none; }
  .nbv-foot .nbv-made { border: 0; padding: 0; }
  .nbv-code { break-inside: avoid; }
}

/* Highlights from the notebook's own lines (their notes stay private). */
.nbv-hl {
  color: inherit;
  border-radius: 3px;
  padding: 0 1px;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  background: color-mix(in srgb, var(--nbv-hl-yellow) 34%, transparent);
}
.nbv-hl[data-hl="green"] { background: color-mix(in srgb, var(--nbv-hl-green) 30%, transparent); }
.nbv-hl[data-hl="blue"] { background: color-mix(in srgb, var(--nbv-hl-blue) 28%, transparent); }
.nbv-hl[data-hl="pink"] { background: color-mix(in srgb, var(--nbv-hl-pink) 28%, transparent); }