:root {
  --bg: var(--tg-theme-bg-color, #0f1419);
  --text: var(--tg-theme-text-color, #f5f7f8);
  --muted: var(--tg-theme-hint-color, #8b98a5);
  --panel: var(--tg-theme-secondary-bg-color, #1c242d);
  --accent: var(--tg-theme-button-color, #2aabee);
  --on-accent: var(--tg-theme-button-text-color, #fff);
  --line: color-mix(in srgb, var(--text) 22%, transparent);
  --danger: #ff5d5d;
  --folder: #e2b340;
  --app-h: 100dvh;
  --tabs: calc(58px + env(safe-area-inset-bottom));
}

* { box-sizing: border-box; }
html, body { margin: 0; height: var(--app-h); background: var(--bg); }
body {
  font: 15px/1.35 system-ui, "Segoe UI", sans-serif;
  color: var(--text);
  overflow: hidden;
}
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, p { margin: 0; }

#app {
  height: var(--app-h);
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

header {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 56px;
  padding: 8px 12px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
#back {
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  font-size: 22px;
}
.heading { min-width: 0; }
#title { font-size: 18px; font-weight: 650; }
#subtitle {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 78vw;
}
.banner {
  margin: 0;
  padding: 10px 14px;
  background: color-mix(in srgb, var(--accent) 18%, var(--panel));
  color: var(--text);
  font-size: 13px;
}

#view {
  flex: 1;
  min-height: 0;
  overflow: auto;
  display: flex;
  flex-direction: column;
  padding-bottom: 8px;
}
.tabs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  height: var(--tabs);
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--panel);
  border-top: 1px solid var(--line);
}
.tab {
  border: 0;
  margin: 6px 4px;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}
.tab.active {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 18%, transparent);
}

.toolbar {
  display: flex;
  gap: 8px;
  padding: 12px;
}
.toolbar .btn { flex: 1 1 7rem; max-width: 11rem; min-width: 0; }

.btn {
  border: 0;
  border-radius: 12px;
  min-height: 42px;
  padding: 10px 12px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 650;
}
.btn.ghost {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
}
.btn.danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
.btn:disabled { opacity: 0.55; }

.crumbs {
  display: flex;
  gap: 4px;
  align-items: center;
  padding: 0 12px 8px;
  overflow: auto;
  white-space: nowrap;
  color: var(--muted);
  font-size: 13px;
}
.crumbs button {
  border: 0;
  background: transparent;
  color: var(--accent);
  padding: 4px 0;
}

.row {
  width: 100%;
  min-height: 56px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 14px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  text-align: left;
}
.row.selected { background: color-mix(in srgb, var(--accent) 16%, transparent); }
.ico {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  flex: none;
  background: color-mix(in srgb, var(--text) 8%, transparent);
}
.ico.folder { color: var(--folder); background: color-mix(in srgb, var(--folder) 18%, transparent); }
.ico svg { width: 20px; height: 20px; display: block; }
.row .name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.row .meta { color: var(--muted); font-size: 12px; flex: none; }
.empty, .note {
  margin: 18px 16px;
  color: var(--muted);
  text-align: center;
}

.pad { padding: 14px; display: flex; flex-direction: column; gap: 12px; width: min(640px, 100%); }
#view > .pad,
#view > .logbox { flex: 1; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field span, .label { color: var(--muted); font-size: 12px; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  padding: 12px;
}
textarea { min-height: 120px; resize: vertical; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 999px;
  padding: 8px 12px;
}
.chip.active { border-color: var(--accent); color: var(--accent); }
.pad .logbox { margin: 0; flex: 1; min-height: 160px; }
.logbox {
  margin: 0 14px 14px;
  padding: 12px;
  border-radius: 12px;
  background: #0b0f14;
  color: #d7e0ea;
  min-height: 180px;
  white-space: pre-wrap;
  overflow: auto;
  font: 12px/1.45 ui-monospace, "Cascadia Mono", Consolas, monospace;
}
.cards { display: flex; flex-direction: column; gap: 10px; padding: 14px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
}
.card b { display: block; margin-bottom: 6px; }
.card pre { margin: 0; white-space: pre-wrap; color: var(--muted); font: 12px/1.45 ui-monospace, Consolas, monospace; }

#sheet {
  position: fixed;
  left: 10px;
  right: 10px;
  bottom: calc(var(--tabs) + 8px);
  z-index: 5;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
}
#sheet strong { display: block; margin-bottom: 10px; word-break: break-all; }
.sheet-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

#modal {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
#modal[hidden], #sheet[hidden], #banner[hidden], #back[hidden] { display: none; }
.dialog {
  width: min(480px, 100%);
  background: var(--panel);
  border-radius: 18px 18px 0 0;
  padding: 16px 16px calc(16px + env(safe-area-inset-bottom));
}
.dialog h2 { margin: 0 0 8px; font-size: 18px; }
.dialog p { color: var(--muted); margin-bottom: 12px; }
.dialog .row-btns { display: flex; gap: 8px; margin-top: 12px; }
.dialog .row-btns .btn { flex: 1; }

#toast {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: calc(var(--tabs) + 12px);
  z-index: 30;
  background: var(--panel);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 12px;
  display: none;
}
#toast.show { display: block; }
.map { padding: 10px 0; border-bottom: 1px solid var(--line); }
.file-pick { display: flex; align-items: center; gap: 10px; }
.file-pick span { color: var(--muted); min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }