/* ── Variables ────────────────────────────────────────────────────────────── */
:root {
  --bg:          #ffffff;
  --fg:          #1a1a1a;
  --fg-dim:      #666;
  --fg-tag:      #888;
  --border:      #ddd;
  --code-bg:     #f5f5f5;
  --header-bg:   #f8f8f8;
  --link:        #0055cc;
  --ts-color:    #007788;
  --radius:      4px;
  --indent:      1.1rem;
  --font:        system-ui, -apple-system, sans-serif;
  --mono:        ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #1c1c1e;
    --fg:        #e5e5ea;
    --fg-dim:    #9a9a9f;
    --fg-tag:    #7a7a82;
    --border:    #38383a;
    --code-bg:   #2c2c2e;
    --header-bg: #2c2c2e;
    --link:      #5e9cf5;
    --ts-color:  #4db8c8;
  }
}

/* ── Reset ────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  background: var(--bg);
  color: var(--fg);
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

/* ── Header ───────────────────────────────────────────────────────────────── */
#appHeader {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
}

#appHeaderRow {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .55rem 1rem;
  padding-top: calc(.55rem + env(safe-area-inset-top, 0px));
}


#openBtn,
#searchBtn,
#agendaBtn {
  padding: .38rem .85rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-size: 15px;
  cursor: pointer;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  flex-shrink: 0;
}
#openBtn:active,
#searchBtn:active,
#agendaBtn:active { opacity: .7; }
#agendaBtn.active,
#searchBtn.active {
  background: var(--link);
  color: #fff;
  border-color: var(--link);
}

/* ── Search bar ───────────────────────────────────────────────────────────── */
#searchBar {
  padding: .4rem .8rem;
  border-top: 1px solid var(--border);
}
#searchInput {
  width: 100%;
  padding: .35rem .7rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-size: 15px;
  outline: none;
}
#searchInput:focus { border-color: var(--link); }

mark {
  background: #ffe066;
  color: #000;
  border-radius: 2px;
  padding: 0 .1em;
}
@media (prefers-color-scheme: dark) {
  mark { background: #8a6d00; color: #fff; }
}

#fileName {
  font-size: 14px;
  color: var(--fg-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

/* ── Main content ─────────────────────────────────────────────────────────── */
#content {
  padding: .8rem 1rem 4rem;
  max-width: 780px;
  margin: 0 auto;
}

#welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 3rem;
  color: var(--fg-dim);
  text-align: center;
}
#welcome svg { opacity: .4; }

.doc-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin: .5rem 0 1rem;
  padding-bottom: .5rem;
  border-bottom: 2px solid var(--border);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.doc-title:active { opacity: .6; }

/* ── Headings ─────────────────────────────────────────────────────────────── */
.h-wrap { margin-top: .15rem; }

.h-row {
  display: flex;
  align-items: baseline;
  gap: .35rem;
  padding: .28rem 0;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}
.h-row.foldable { cursor: pointer; }

.h-bullet {
  flex-shrink: 0;
  font-size: .65em;
  width: 1rem;
  text-align: center;
  line-height: 1;
  padding-top: .2em;
}

.todo {
  flex-shrink: 0;
  font-size: .75em;
  font-weight: 600;
  padding: .1em .4em;
  border: 1.5px solid currentColor;
  border-radius: 3px;
  line-height: 1.4;
  letter-spacing: .02em;
}

.h-title {
  flex: 1;
  font-weight: 600;
  min-width: 0;
  overflow-wrap: break-word;
}

.h-tags {
  flex-shrink: 0;
  margin-left: auto;
  padding-left: .5rem;
  display: flex;
  gap: .2rem;
  align-items: baseline;
}

.h-tag {
  font-size: .78em;
  color: var(--fg-tag);
  font-style: italic;
  white-space: nowrap;
  cursor: pointer;
  padding: .05em .2em;
  border-radius: 3px;
  -webkit-tap-highlight-color: transparent;
}
.h-tag:active,
.h-tag.active {
  background: var(--link);
  color: #fff;
  font-style: normal;
}

/* Level sizes */
.level-1 > .h-row .h-title { font-size: 1.2rem; }
.level-2 > .h-row .h-title { font-size: 1.08rem; }
.level-3 > .h-row .h-title { font-size: .98rem; }
.level-4 > .h-row .h-title { font-size: .92rem; }
.level-5 > .h-row .h-title,
.level-6 > .h-row .h-title { font-size: .88rem; }

/* Body */
.h-body {
  padding-left: var(--indent);
}
.h-body.hidden { display: none; }

/* ── Inline ───────────────────────────────────────────────────────────────── */
a            { color: var(--link); }
.file-link   { color: var(--fg-dim); text-decoration: underline dotted; cursor: default; }
.inline-code {
  font-family: var(--mono);
  font-size: .87em;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: .05em .35em;
}
.timestamp { font-size: .87em; color: var(--ts-color); white-space: nowrap; }

/* ── Blocks ───────────────────────────────────────────────────────────────── */
p { margin: .35rem 0; overflow-wrap: break-word; }

pre {
  font-family: var(--mono);
  font-size: .875rem;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .7rem .9rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: .45rem 0;
  white-space: pre;
}

blockquote {
  border-left: 3px solid var(--border);
  margin: .4rem 0 .4rem .3rem;
  padding-left: .75rem;
  color: var(--fg-dim);
}
blockquote p { margin: .2rem 0; }

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: .6rem 0;
}

.planning {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  font-size: .83rem;
  color: var(--fg-dim);
  margin: .25rem 0;
}
.planning span { white-space: nowrap; }

/* ── Table ────────────────────────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: .4rem 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

table {
  border-collapse: collapse;
  font-size: .9rem;
  width: 100%;
}

th, td {
  border: 1px solid var(--border);
  padding: .3rem .6rem;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--code-bg);
  font-weight: 600;
}

/* ── Drawers (Properties / Logbook / etc.) ────────────────────────────────── */
.drawer-block {
  margin: .25rem 0;
  font-size: .85rem;
}
.drawer-block summary {
  color: var(--fg-dim);
  cursor: pointer;
  padding: .1rem 0;
  user-select: none;
  -webkit-user-select: none;
  list-style: disclosure-closed;
}
details[open] > summary { list-style: disclosure-open; }

.drawer-block table { font-size: inherit; }
.prop-key { color: var(--fg-dim); padding-right: .7rem; white-space: nowrap; }

.generic-block {
  font-size: .9rem;
  color: var(--fg-dim);
  margin: .25rem 0;
}

/* ── Agenda view ──────────────────────────────────────────────────────────── */
.agenda-month {
  font-size: .8rem;
  font-weight: 600;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin: 1.2rem 0 .35rem;
  padding-bottom: .25rem;
  border-bottom: 1px solid var(--border);
}
.agenda-month:first-child { margin-top: .2rem; }

.agenda-item {
  display: flex;
  align-items: baseline;
  gap: .55rem;
  padding: .45rem .3rem;
  border-radius: var(--radius);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  font-size: .93rem;
}
.agenda-item:active { background: var(--code-bg); }

.agenda-date {
  flex-shrink: 0;
  width: 6rem;
  color: var(--fg-dim);
  font-size: .85rem;
}

.agenda-type {
  flex-shrink: 0;
  font-size: .75rem;
  font-weight: 600;
  color: var(--fg-dim);
  letter-spacing: .03em;
}
.agenda-type-deadline {
  color: #c0392b;
}
@media (prefers-color-scheme: dark) {
  .agenda-type-deadline { color: #e57373; }
}

.agenda-title {
  flex: 1;
  min-width: 0;
  overflow-wrap: break-word;
  display: flex;
  align-items: baseline;
  gap: .35rem;
}