:root {
  --ink: #1c1a16;
  --muted: #5c574e;
  --paper: #f7f4ee;
  --paper-2: #efeae0;
  --line: #d2cbbd;
  --accent: #2f5d50;
  --accent-soft: #dce8e3;
  --handle: #8a8378;
  --focus: #3b7a6a;
  --shadow: 0 10px 30px rgba(40, 35, 25, 0.08);
  --font-ui: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --font-body: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background:
    radial-gradient(ellipse at top left, #fffdf8 0%, transparent 55%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.45;
  min-height: 100vh;
}

.chrome {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 0.75rem;
}

.chrome h1 {
  margin: 0;
  font-family: var(--font-ui);
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0.35rem 0 1rem;
  color: var(--muted);
  max-width: 36rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
}

.toolbar button {
  appearance: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 6px;
  padding: 0.4rem 0.7rem;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset;
}

.toolbar button:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.toolbar button:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.cloud-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 0.75rem;
  padding: 0.55rem 0.65rem;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.4);
}

.cloud-bar[hidden] {
  display: none;
}

.cloud-bar button {
  appearance: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 6px;
  padding: 0.4rem 0.7rem;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.cloud-bar button:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.cloud-bar button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.cloud-user {
  font-size: 0.85rem;
  color: var(--muted);
  margin-right: 0.25rem;
}

.cloud-status {
  flex: 1 1 100%;
  margin: 0;
  min-height: 1.1em;
  font-size: 0.8rem;
  color: var(--muted);
}

.cloud-dialog {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  max-width: min(28rem, 92vw);
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.cloud-dialog::backdrop {
  background: rgba(28, 26, 22, 0.35);
}

.cloud-dialog h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-ui);
  font-size: 1.2rem;
}

.cloud-share-hint {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.cloud-save-label {
  display: block;
  margin: 0 0 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}

[data-outline-root][data-readonly='true'] .text {
  cursor: default;
}

.cloud-save-input {
  width: 100%;
  margin: 0 0 0.9rem;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}

.cloud-dialog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cloud-dialog-actions button {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--accent-soft);
  color: var(--ink);
  border-radius: 6px;
  padding: 0.4rem 0.75rem;
  font: inherit;
  cursor: pointer;
}

.cloud-outline-list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  max-height: 16rem;
  overflow: auto;
}

.cloud-outline-list li {
  margin: 0 0 0.35rem;
}

.cloud-outline-list button {
  width: 100%;
  text-align: left;
  appearance: none;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 6px;
  padding: 0.45rem 0.6rem;
  font: inherit;
  cursor: pointer;
}

.cloud-outline-list button:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.hints {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.82rem;
}

kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78em;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 0.05rem 0.3rem;
  background: #fff;
}

main {
  max-width: 52rem;
  margin: 0 auto 3rem;
  padding: 0.5rem 1.25rem 2rem;
}

/* Classic HTML outline numbering: A. 1. a. i. */
ol.outline,
ol.outline ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

ol.outline {
  counter-reset: level1;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.85rem 0.75rem 0.85rem 0.5rem;
  box-shadow: var(--shadow);
}

ol.outline > li {
  counter-increment: level1;
}

ol.outline > li > .row .text::before {
  content: counter(level1, upper-alpha) ".";
}

ol.outline > li > ol {
  counter-reset: level2;
}

ol.outline > li > ol > li {
  counter-increment: level2;
}

ol.outline > li > ol > li > .row .text::before {
  content: counter(level2) ".";
}

ol.outline > li > ol > li > ol {
  counter-reset: level3;
}

ol.outline > li > ol > li > ol > li {
  counter-increment: level3;
}

ol.outline > li > ol > li > ol > li > .row .text::before {
  content: counter(level3, lower-alpha) ".";
}

ol.outline > li > ol > li > ol > li > ol {
  counter-reset: level4;
}

ol.outline > li > ol > li > ol > li > ol > li {
  counter-increment: level4;
}

ol.outline > li > ol > li > ol > li > ol > li > .row .text::before {
  content: counter(level4, lower-roman) ".";
}

ol.outline > li > ol > li > ol > li > ol > li > ol {
  counter-reset: level5;
}

ol.outline > li > ol > li > ol > li > ol > li > ol > li {
  counter-increment: level5;
}

ol.outline > li > ol > li > ol > li > ol > li > ol > li > .row .text::before {
  content: counter(level5) ".";
}

ol.outline li {
  margin: 0;
}

ol.outline ol {
  margin-left: 1.15rem;
  padding-left: 0.35rem;
  border-left: 1px solid rgba(210, 203, 189, 0.7);
}

.row {
  display: grid;
  grid-template-columns: 1.1rem minmax(0, 1fr);
  gap: 0.35rem;
  align-items: start;
  padding: 0.18rem 0.25rem;
  border-radius: 6px;
}

.row:hover {
  background: rgba(47, 93, 80, 0.05);
}

.row:focus-within {
  background: rgba(47, 93, 80, 0.08);
}

.toggle {
  appearance: none;
  width: 1.1rem;
  height: 1.25rem;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--handle);
  cursor: pointer;
  font-size: 0.7rem;
  line-height: 1.25rem;
  text-align: center;
}

.toggle::before {
  content: "•";
  opacity: 0.45;
}

[data-item][data-has-children="true"] > .row > .toggle::before {
  content: "▾";
  opacity: 1;
}

[data-item][data-has-children="true"][data-state="collapsed"] > .row > .toggle::before {
  content: "▸";
}

[data-item][data-has-children="false"] > .row > .toggle {
  cursor: default;
}

[data-item][data-has-children="true"] > .row > .toggle:hover {
  color: var(--accent);
}

.toggle:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
  border-radius: 3px;
}

.text {
  min-height: 1.25rem;
  outline: none;
  word-break: break-word;
  white-space: pre-wrap;
}

.text::before {
  display: inline-block;
  min-width: 1.5rem;
  margin-right: 0.35rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 0.92em;
}

.text:focus {
  border-radius: 3px;
}

@media (max-width: 640px) {
  .chrome,
  main {
    padding-left: 0.85rem;
    padding-right: 0.85rem;
  }

  ol.outline ol {
    margin-left: 0.7rem;
  }
}