:root {
  color-scheme: light;
  --bg: #efe8dc;
  --paper: #fffdf8;
  --ink: #1c1917;
  --muted: #6f655c;
  --line: #e4d8c8;
  --accent: #0e5c56;
  --accent-soft: #e5f3f1;
  --xlsx: #1f7a4d;
  --docx: #1d4e89;
  --pptx: #b45309;
  --new: #166534;
  --new-bg: #e8f6ee;
  --chg: #9a3412;
  --chg-bg: #fff1e6;
  --bad: #9f1239;
  --shadow: 0 16px 40px rgba(68, 48, 24, 0.08);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.5;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(14, 92, 86, 0.08), transparent 28rem),
    var(--bg);
}

[hidden] { display: none !important; }

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  max-width: 1120px;
  padding: 28px 24px 48px;
}

.top { margin-bottom: 22px; }

.mark {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 4px;
  font-family: Palatino, "Palatino Linotype", "Songti SC", serif;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: lowercase;
  color: var(--accent);
}

.mark a.gh {
  margin-left: 0;
  color: var(--accent);
  vertical-align: 0;
}

h1, h2, h3 { font-weight: 600; margin: 0; }

h1 {
  font-family: Palatino, "Palatino Linotype", "Songti SC", serif;
  font-size: 32px;
  letter-spacing: -0.02em;
}

.lead {
  max-width: 40rem;
  margin: 8px 0 0;
  color: var(--muted);
}

.slogan {
  margin: 6px 0 0;
  font-weight: 600;
  color: var(--ink);
}

.aside {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: line-through;
}

.banner {
  display: flex;
  gap: 10px;
  align-items: baseline;
  margin-bottom: 18px;
  padding: 12px 14px;
  border: 1px solid #f3c7c7;
  border-radius: 12px;
  background: #fff5f5;
  color: var(--bad);
}

.banner strong { white-space: nowrap; }

#unsupported {
  grid-column: 1 / -1;
  grid-row: 2;
}

.page {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  column-gap: 20px;
  align-items: start;
}

.top { grid-column: 1 / -1; grid-row: 1; }

.layout {
  display: grid;
  grid-column: 1 / -1;
  grid-row: 3;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: start;
}

.topbar { padding-right: 128px; }

.tabs {
  position: sticky;
  top: 0;
  z-index: 3;
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 253, 248, 0.96);
  backdrop-filter: blur(8px);
}

.tabs button {
  flex: 1;
  margin: 0;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
}

.tabs button[aria-selected="true"] {
  background: var(--tone);
  color: #f7fffd;
  box-shadow: none;
}

.tabs button[aria-selected="true"] .dot {
  background: #f7fffd;
}

.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 6px;
  border-radius: 50%;
  background: currentColor;
}

.panel[hidden] { display: none; }

.card {
  margin-bottom: 14px;
  padding: 16px 16px 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.card h3 { font-size: 18px; }

.card .blurb {
  margin: 6px 0 12px;
  color: var(--muted);
}

.card details { margin-bottom: 12px; }

.card summary {
  cursor: pointer;
  color: var(--accent);
}

textarea {
  width: 100%;
  min-height: 180px;
  max-height: 360px;
  margin-top: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbf7f1;
  color: var(--ink);
  font-family: Consolas, "Sarasa Mono SC", "Cascadia Mono", monospace;
  font-size: 12.5px;
  line-height: 1.45;
  resize: vertical;
}

.card-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.card-actions .write {
  flex: none;
  width: 6.75em;
  white-space: nowrap;
  text-align: center;
}

.status {
  flex: 1;
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--muted);
  font-size: 13px;
}
.status.bad { color: var(--bad); }
.status.ok { color: var(--new); }

body,
body[data-format="home"] { --tone: var(--accent); }
body[data-format="xlsx"] { --tone: var(--xlsx); }
body[data-format="docx"] { --tone: var(--docx); }
body[data-format="pptx"] { --tone: var(--pptx); }

button {
  font: inherit;
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--tone);
  color: #f6fffd;
  cursor: pointer;
}

button:hover { filter: brightness(1.05); }

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  filter: none;
}

button.ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

button:focus-visible,
textarea:focus-visible,
summary:focus-visible,
a:focus-visible {
  outline: 2px solid var(--tone);
  outline-offset: 2px;
}

.hero h2 {
  font-family: Palatino, "Palatino Linotype", "Songti SC", serif;
  font-size: 28px;
  letter-spacing: -0.02em;
}

.kicker {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.hero p:last-child { margin: 10px 0 0; color: var(--muted); }

.format-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.format { display: flex; flex-direction: column; gap: 8px; }
.format p { margin: 0; color: var(--muted); }
.format .ext {
  margin: 0;
  font-family: Consolas, "Sarasa Mono SC", monospace;
  font-weight: 600;
  color: var(--ink);
}
.format button { align-self: flex-start; margin-top: auto; }
.format.xlsx { border-top: 3px solid var(--xlsx); }
.format.docx { border-top: 3px solid var(--docx); }
.format.pptx { border-top: 3px solid var(--pptx); }

.card h3.sub { margin-top: 16px; }

.card a { color: var(--accent); }

a.gh {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  vertical-align: -3px;
}

a.gh svg { width: 16px; height: 16px; }

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

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.switch {
  display: flex;
  grid-column: 2;
  grid-row: 1 / -1;
  justify-self: end;
  align-self: start;
  position: sticky;
  top: 12px;
  z-index: 5;
  flex: none;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.96);
  backdrop-filter: blur(8px);
}

.switch button {
  padding: 4px 12px;
  background: transparent;
  color: var(--muted);
}

.switch button[aria-pressed="true"] {
  background: var(--tone);
  color: #f7fffd;
}

.dl-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.choice {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  text-decoration: none;
}

.choice .kind { font-weight: 600; }

.choice .file {
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.choice[aria-disabled="true"] {
  pointer-events: none;
  opacity: 0.6;
}

.meta {
  min-height: 1.4em;
  margin: 6px 0 12px;
  color: var(--muted);
}

.mcp {
  margin: 0;
  padding: 12px;
  overflow: auto;
  border-radius: 10px;
  background: #fbf7f1;
  font-family: Consolas, "Sarasa Mono SC", monospace;
  font-size: 12.5px;
  line-height: 1.45;
}

.donate p { margin: 0 0 10px; }

.donate strong { font-weight: 600; }

.codes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.codes figure { margin: 0; }

.codes img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  background: #fff;
}

.codes figcaption {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

code {
  padding: 0 4px;
  border-radius: 4px;
  background: #f4eee6;
  font-family: Consolas, "Sarasa Mono SC", monospace;
  font-size: 0.92em;
}

.dir {
  position: sticky;
  top: 60px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.dir h2 { font-size: 16px; }

#dir-name {
  min-height: 3em;
  margin: 6px 0 10px;
  color: var(--muted);
}

.row { display: flex; gap: 8px; flex-wrap: wrap; }

.change {
  margin: 12px 0 0;
  padding: 8px 10px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
}

#files {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  max-height: 360px;
  overflow: auto;
}

#files li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 8px;
  padding: 8px 0;
  border-top: 1px solid var(--line);
}

.file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
}

.file-meta { grid-column: 1; color: var(--muted); font-size: 12px; }

.badge {
  align-self: center;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 12px;
}

.badge.new { background: var(--new-bg); color: var(--new); }
.badge.chg { background: var(--chg-bg); color: var(--chg); }

#files li.empty {
  display: block;
  border: 0;
  color: var(--muted);
}

#log {
  margin-top: 12px;
  max-height: 140px;
  overflow: auto;
  color: var(--muted);
  font-size: 13px;
}

#log p { margin: 0 0 6px; }

@media (max-width: 860px) {
  h1 { font-size: 26px; }
  .page,
  .layout { grid-template-columns: 1fr; }
  .switch { grid-column: 1; top: 8px; }
  .tabs { top: 52px; }
  .dir { position: static; }
  .format-grid, .dl-grid, .codes { grid-template-columns: 1fr; }
}