:root {
  --bg: #f2f4f7;
  --card: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #0b5cad;
  --accent-soft: #e6f0fb;
  --accent-text: #ffffff;
  --danger: #c0262d;
  --chip: #e9edf2;
  --shadow: 0 1px 2px rgba(0,0,0,.06), 0 4px 14px rgba(0,0,0,.05);
  --radius: 14px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1720;
    --card: #18222e;
    --text: #e8edf3;
    --muted: #93a1b2;
    --line: #253241;
    --accent: #4d9cf0;
    --accent-soft: #1b3350;
    --accent-text: #0b1420;
    --danger: #ff6b6b;
    --chip: #223040;
    --shadow: none;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.4 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
[hidden] { display: none !important; }
a { color: var(--accent); }
h1 { font-size: 26px; margin: 0; letter-spacing: -.02em; }
h2 { font-size: 21px; margin: 4px 0 2px; }
h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin: 0 0 4px; font-weight: 600; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.error { color: var(--danger); min-height: 1em; font-size: 14px; margin: 8px 0 0; }
.pre { white-space: pre-line; margin: 0; }

/* ---------- setup ---------- */
.auth { min-height: 100vh; display: grid; place-items: center; padding: calc(24px + env(safe-area-inset-top)) 16px 24px; }
.setup-card { background: var(--card); border-radius: 20px; padding: 28px 22px; max-width: 440px; width: 100%; box-shadow: var(--shadow); }
.setup-logo { width: 64px; height: 64px; border-radius: 15px; display: block; margin-bottom: 14px; }
.steps { padding-left: 20px; color: var(--text); font-size: 15px; }
.steps li { margin-bottom: 8px; }

/* ---------- form controls ---------- */
label { display: block; font-size: 14px; font-weight: 600; margin: 14px 0 6px; }
input, select, textarea {
  width: 100%; font: inherit; font-size: 17px; color: var(--text);
  background: var(--bg); border: 1px solid var(--line); border-radius: 11px;
  padding: 11px 12px; outline: none; -webkit-appearance: none; appearance: none;
}
select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24'><path d='m6 9 6 6 6-6' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
#dNewRoom, #aNewRoom { margin-top: 8px; }
.btn {
  font: inherit; font-weight: 600; font-size: 16px; border: 0; border-radius: 12px;
  padding: 12px 18px; background: var(--chip); color: var(--text); cursor: pointer;
}
.btn.primary { background: var(--accent); color: var(--accent-text); }
.btn.danger { background: transparent; color: var(--danger); padding-left: 0; }
.btn:disabled { opacity: .55; }


/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  -webkit-backdrop-filter: saturate(180%) blur(16px); backdrop-filter: saturate(180%) blur(16px);
  padding: calc(10px + env(safe-area-inset-top)) 16px 8px;
  border-bottom: 1px solid var(--line);
}
.titlerow { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.titlerow p { margin: 2px 0 0; }
.actions { display: flex; gap: 4px; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 50%; border: 0; background: var(--card);
  color: var(--accent); display: grid; place-items: center; box-shadow: var(--shadow); cursor: pointer;
}
.icon-btn.spin svg { animation: spin .8s linear infinite; }
.search {
  margin-top: 10px; display: flex; align-items: center; gap: 8px;
  background: var(--card); border-radius: 11px; padding: 0 12px; color: var(--muted); border: 1px solid var(--line);
}
.search input { border: 0; background: transparent; padding: 10px 0; box-shadow: none !important; }
.chips {
  display: flex; gap: 8px; overflow-x: auto; margin: 10px -16px 0; padding: 0 16px 4px;
  scrollbar-width: none; -webkit-overflow-scrolling: touch;
}
.chips::-webkit-scrollbar { display: none; }
.chip {
  flex: 0 0 auto; border: 0; border-radius: 999px; padding: 7px 13px; font: inherit; font-size: 14px;
  background: var(--chip); color: var(--text); cursor: pointer; white-space: nowrap;
}
.chip .n { color: var(--muted); margin-left: 4px; font-size: 12px; }
.chip[aria-selected="true"] { background: var(--accent); color: var(--accent-text); }
.chip[aria-selected="true"] .n { color: inherit; opacity: .8; }

/* ---------- list ---------- */
main { padding: 6px 16px calc(96px + env(safe-area-inset-bottom)); max-width: 760px; margin: 0 auto; }
.count { margin: 6px 2px 8px; }
.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.item {
  background: var(--card); border-radius: var(--radius); padding: 12px 14px; box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 12px; cursor: pointer; border: 0; width: 100%; text-align: left;
  font: inherit; color: inherit;
}
.item:active { transform: scale(.99); }
.item .body { flex: 1; min-width: 0; }
.item .name { font-weight: 600; font-size: 16px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item .type { color: var(--muted); font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item .note { color: var(--muted); font-size: 12.5px; margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.room {
  flex: 0 0 auto; font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums;
  background: var(--accent-soft); color: var(--accent); border-radius: 8px; padding: 5px 8px;
}
.room.none { background: var(--chip); color: var(--muted); }
.empty { text-align: center; color: var(--muted); margin-top: 40px; }
.loading { display: flex; justify-content: center; align-items: center; gap: 10px; color: var(--muted); margin-top: 40px; }
.spinner { width: 18px; height: 18px; border-radius: 50%; border: 2.5px solid var(--line); border-top-color: var(--accent); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.fab {
  position: fixed; right: 18px; bottom: calc(22px + env(safe-area-inset-bottom));
  width: 58px; height: 58px; border-radius: 50%; border: 0; background: var(--accent); color: var(--accent-text);
  display: grid; place-items: center; box-shadow: 0 6px 20px rgba(11,92,173,.35); cursor: pointer; z-index: 6;
}

/* ---------- sheets ---------- */
dialog.sheet {
  border: 0; padding: 0; margin: auto 0 0; width: 100%; max-width: 100%;
  max-height: 92vh; background: var(--card); color: var(--text);
  border-radius: 20px 20px 0 0; box-shadow: 0 -8px 30px rgba(0,0,0,.18);
}
dialog.sheet[open] { animation: up .22s ease-out; }
dialog.sheet::backdrop { background: rgba(0,0,0,.35); }
dialog.sheet form { padding: 8px 18px calc(18px + env(safe-area-inset-bottom)); overflow-y: auto; max-height: 92vh; }
@media (min-width: 700px) {
  dialog.sheet { margin: auto; max-width: 520px; border-radius: 20px; }
}
@keyframes up { from { transform: translateY(40px); opacity: .4; } to { transform: none; opacity: 1; } }
.grabber { width: 38px; height: 5px; border-radius: 3px; background: var(--line); margin: 4px auto 12px; }
.field-block { background: var(--bg); border-radius: 12px; padding: 10px 12px; margin-top: 12px; }
.links { margin: 0; padding-left: 18px; }
.links li { margin: 3px 0; word-break: break-word; }
.sheet-actions { display: flex; justify-content: space-between; gap: 10px; margin-top: 18px; }
.sheet-actions .btn { flex: 1; }
.sheet-actions .btn.danger { flex: 0 0 auto; }

.toast {
  position: fixed; left: 50%; bottom: calc(96px + env(safe-area-inset-bottom)); transform: translateX(-50%) translateY(20px);
  background: #111827; color: #fff; padding: 10px 16px; border-radius: 12px; font-size: 14px;
  opacity: 0; pointer-events: none; transition: .25s; z-index: 20; max-width: calc(100% - 32px); text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.bad { background: var(--danger); }

/* ---------- accounts ---------- */
.btn.wide { width: 100%; margin-top: 16px; }
.btn.small { padding: 8px 12px; font-size: 14px; }
.btn.link { background: none; color: var(--muted); font-weight: 500; margin-top: 10px; padding: 6px 0; }
.hint { margin: 6px 0 0; }
.mt8 { margin-top: 8px; }
.mt12 { margin-top: 12px; }
.badge { font-size: 11px; font-weight: 700; text-transform: uppercase; background: var(--accent-soft); color: var(--accent); border-radius: 6px; padding: 2px 6px; margin-left: 6px; vertical-align: 2px; }
.row-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.row-actions .btn.danger { padding-left: 12px; }
.field-block input { background: var(--card); }
.users { list-style: none; padding: 0; margin: 0 0 4px; }
.users li { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.users li:last-child { border-bottom: 0; }
.users .who { min-width: 0; }
.users .who b { display: block; overflow: hidden; text-overflow: ellipsis; }
.users .who span { font-size: 12.5px; color: var(--muted); }
.users .ops { display: flex; gap: 4px; flex: 0 0 auto; }
.users .ops button { border: 0; background: var(--card); color: var(--accent); border-radius: 8px; padding: 6px 8px; font: inherit; font-size: 13px; cursor: pointer; }
.users .ops button.del { color: var(--danger); }
label.check { display: flex; align-items: center; gap: 8px; font-weight: 500; margin: 10px 0; }
label.check input { width: 20px; height: 20px; -webkit-appearance: checkbox; appearance: auto; }