/* notepadly.app — design system
   "Paper & Ink": a warm parchment light theme (never the flat cream-plus-
   terracotta default) paired with a soft coffee-dark theme, a comfortable
   serif writing surface, and one signature moment — an ink-blot pulse on
   the autosave indicator — earned by the feature it represents rather than
   decoration. System font stack only, zero external requests. */

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

:root {
  /* -- paper & ink: light (default) -- */
  --paper: #f1e8d3;
  --paper-raised: #fbf6ea;
  --paper-inset: #e6dabf;
  --rule: #d8c8a0;
  --ink: #2c241a;
  --ink-soft: #6b5c48;
  --ink-faint: #a1927a;
  --accent: #2f4d63;
  --accent-soft: #4f7089;
  --accent-contrast: #f6f1e4;
  --brass: #a97b2f;
  --brass-soft: rgba(169, 123, 47, .16);
  --danger: #9c4433;
  --danger-soft: rgba(156, 68, 51, .12);
  --shadow: rgba(44, 36, 26, .14);
  --focus: #2f6f8f;

  --font-editor: Georgia, "Iowan Old Style", "Palatino Linotype", "Book Antiqua", "Charter", serif;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --maxw: 1180px;
  --page-w: 720px;
  --radius: 10px;
  --radius-sm: 6px;
}

:root[data-theme="dark"] {
  --paper: #211c15;
  --paper-raised: #29231a;
  --paper-inset: #191510;
  --rule: #3a3224;
  --ink: #ece1c8;
  --ink-soft: #b7a888;
  --ink-faint: #7d735c;
  --accent: #8fb3cf;
  --accent-soft: #6e93b3;
  --accent-contrast: #14212b;
  --brass: #d9a34e;
  --brass-soft: rgba(217, 163, 78, .16);
  --danger: #d1867a;
  --danger-soft: rgba(209, 134, 122, .14);
  --shadow: rgba(0, 0, 0, .4);
  --focus: #9cc8e6;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #211c15;
    --paper-raised: #29231a;
    --paper-inset: #191510;
    --rule: #3a3224;
    --ink: #ece1c8;
    --ink-soft: #b7a888;
    --ink-faint: #7d735c;
    --accent: #8fb3cf;
    --accent-soft: #6e93b3;
    --accent-contrast: #14212b;
    --brass: #d9a34e;
    --brass-soft: rgba(217, 163, 78, .16);
    --danger: #d1867a;
    --danger-soft: rgba(209, 134, 122, .14);
    --shadow: rgba(0, 0, 0, .4);
    --focus: #9cc8e6;
  }
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  background-image:
    radial-gradient(ellipse at 20% -10%, rgba(169, 123, 47, .05), transparent 55%),
    radial-gradient(ellipse at 100% 0%, rgba(47, 77, 99, .04), transparent 45%);
  color: var(--ink);
  font-family: var(--font-ui);
  line-height: 1.5;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  transition: background-color .25s ease, color .25s ease;
}

a { color: var(--accent); }
a:hover { color: var(--accent-soft); }

h1, h2, h3 { font-family: var(--font-editor); color: var(--ink); line-height: 1.25; }

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- header ---------- */
.site-header {
  border-bottom: 1px solid var(--rule);
}
.header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-editor);
  font-style: italic;
  font-size: 22px;
  letter-spacing: -.2px;
  color: var(--ink);
  text-decoration: none;
}
.brand:hover { color: var(--ink); }
.brand-mark { width: 22px; height: 22px; flex: none; }
.brand-mark path.page { fill: var(--paper-raised); stroke: var(--ink); }
.brand-mark path.fold { fill: var(--rule); stroke: var(--ink); }
.brand-mark rect { fill: var(--ink-faint); }
.brand-mark rect.line-active { fill: var(--brass); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.site-nav a {
  font-size: 14px;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
}
.site-nav a:hover { color: var(--ink); background: var(--paper-raised); }
.site-nav a[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
}

.icon-btn {
  font-family: var(--font-ui);
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.icon-btn:hover { background: var(--paper-raised); color: var(--ink); }

/* ---------- main / editor page ---------- */
main { flex: 1; }

.editor-shell {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 22px 20px 12px;
}

.editor-intro {
  max-width: var(--page-w);
  margin: 0 auto 18px;
  text-align: center;
}
.editor-intro h1 {
  font-size: clamp(28px, 4vw, 38px);
  margin: 0 0 8px;
}
.editor-intro p {
  color: var(--ink-soft);
  margin: 0;
  font-size: 15px;
}

/* note tabs — styled like a notebook's paper index tabs */
.note-tabs {
  max-width: var(--page-w);
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 4px;
  overflow-x: auto;
  padding: 0 4px;
}
.note-tab {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--paper-inset);
  border: 1px solid var(--rule);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  padding: 3px 4px 3px 2px;
  white-space: nowrap;
}
.note-tab.is-active {
  background: var(--paper-raised);
}
.note-tab-name {
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--ink-soft);
  background: none;
  border: none;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
}
.note-tab.is-active .note-tab-name {
  color: var(--ink);
  font-weight: 600;
}
.note-tab-name:hover { background: var(--brass-soft); }
.note-tab-rename {
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 3px 6px;
  width: 120px;
}
.note-tab-close {
  border: none;
  background: none;
  color: var(--ink-faint);
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  padding: 4px 6px;
  border-radius: 3px;
}
.note-tab-close:hover { color: var(--danger); background: var(--danger-soft); }
.note-tab-add {
  border: 1px dashed var(--rule);
  background: transparent;
  color: var(--ink-faint);
  border-radius: 8px 8px 0 0;
  padding: 7px 12px 8px;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
}
.note-tab-add:hover { color: var(--ink); border-color: var(--ink-faint); }

/* the "sheet" — the paper the editor lives on */
.sheet {
  max-width: var(--page-w);
  margin: 0 auto;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 0 10px 10px 10px;
  box-shadow: 0 8px 24px -12px var(--shadow);
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--rule);
  flex-wrap: wrap;
}
.toolbar-group { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }

.tool-btn {
  font-family: var(--font-ui);
  background: transparent;
  border: 1px solid transparent;
  color: var(--ink-soft);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.tool-btn:hover { background: var(--paper-inset); color: var(--ink); }
.tool-btn.is-active {
  background: var(--accent);
  color: var(--accent-contrast);
}
.tool-btn.is-active:hover { background: var(--accent-soft); }
.tool-btn.danger:hover { color: var(--danger); background: var(--danger-soft); }

.toolbar-sep {
  width: 1px;
  height: 20px;
  background: var(--rule);
  margin: 0 2px;
}

/* status bar: word/char count + autosave */
.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 14px;
  font-size: 12px;
  color: var(--ink-faint);
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-ui);
}
.status-counts span + span::before { content: "·"; margin: 0 6px; }

.autosave {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.ink-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brass);
  position: relative;
  flex: none;
}
.ink-dot::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: var(--brass-soft);
  opacity: 0;
  transform: scale(.4);
}
.ink-dot.is-pulsing::after {
  animation: ink-spread .7s ease-out;
}
@keyframes ink-spread {
  0% { opacity: .8; transform: scale(.3); }
  100% { opacity: 0; transform: scale(2.2); }
}
.autosave.is-saving .ink-dot { background: var(--ink-faint); }

/* editor + markdown preview */
.editor-body {
  display: grid;
  grid-template-columns: 1fr;
}
.editor-body.is-split {
  grid-template-columns: 1fr 1fr;
}
#editor {
  font-family: var(--font-editor);
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink);
  background: transparent;
  border: none;
  outline: none;
  resize: vertical;
  width: 100%;
  min-height: 46vh;
  padding: 22px;
  tab-size: 2;
}
#editor::placeholder { color: var(--ink-faint); }

.preview-pane {
  font-family: var(--font-editor);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  padding: 22px;
  min-height: 46vh;
  border-left: 1px dashed var(--rule);
  overflow-wrap: break-word;
}
.editor-body:not(.is-split) .preview-pane { display: none; }
.preview-pane h1, .preview-pane h2, .preview-pane h3,
.preview-pane h4, .preview-pane h5, .preview-pane h6 {
  margin-top: 0;
}
.preview-pane pre {
  background: var(--paper-inset);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
}
.preview-pane code {
  font-family: var(--font-mono);
  font-size: .9em;
  background: var(--paper-inset);
  padding: .1em .35em;
  border-radius: 4px;
}
.preview-pane pre code { background: none; padding: 0; }
.preview-pane blockquote {
  margin: 0 0 1em;
  padding: 2px 0 2px 14px;
  border-left: 3px solid var(--brass);
  color: var(--ink-soft);
}
.preview-pane hr { border: none; border-top: 1px solid var(--rule); margin: 1.4em 0; }
.preview-pane ul, .preview-pane ol { padding-left: 1.4em; }
.preview-empty {
  color: var(--ink-faint);
  font-style: italic;
}

@media (max-width: 720px) {
  .editor-body.is-split { grid-template-columns: 1fr; }
  .preview-pane { border-left: none; border-top: 1px dashed var(--rule); }
}

/* ---------- content sections (SEO) ---------- */
.container-narrow {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 20px;
}
.container-narrow h2 { font-size: 24px; margin: 1.6em 0 .5em; }
.container-narrow h2:first-child { margin-top: 0; }
.container-narrow p { color: var(--ink-soft); }
.container-narrow p strong { color: var(--ink); }

.section-divider {
  max-width: 720px;
  margin: 0 auto;
  border: none;
  border-top: 1px solid var(--rule);
}

.faq-item { margin-bottom: 20px; }
.faq-item h3 { font-size: 16px; margin: 0 0 6px; font-family: var(--font-ui); }
.faq-item p { margin: 0; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin: 1.4em 0;
}
.feature-card {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 16px;
}
.feature-card h3 { font-family: var(--font-ui); font-size: 14px; margin: 0 0 6px; color: var(--ink); }
.feature-card p { margin: 0; font-size: 13px; color: var(--ink-soft); }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--rule);
  margin-top: 20px;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--ink-faint);
}
.footer-links { display: flex; gap: 14px; }
.footer-links a { color: var(--ink-soft); text-decoration: none; }
.footer-links a:hover { color: var(--ink); }

.erabbit-mark { display: block; width: 10px; margin: 0 0 0 auto; line-height: 0; }
.erabbit-mark img { display: block; width: 10px; height: 10px; }

/* ---------- simple pages (about/privacy/terms/404) ---------- */
.page-hero {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px 0;
}
.page-hero h1 { font-size: 32px; margin: 0 0 4px; }
.page-hero .updated { color: var(--ink-faint); font-size: 13px; margin: 0 0 1.6em; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}