:root {
  --bg: #f6f4f0;
  --card: #ffffff;
  --ink: #1d1c1a;
  --muted: #8b877f;
  --faint: #e9e5de;
  --line: #efebe4;
  --accent: #2f6fde;
  --accent-ink: #ffffff;
  --danger: #c8372d;
  --tile: #fbfaf7;
  --shadow: 0 1px 2px rgba(40, 32, 20, 0.06), 0 4px 18px rgba(40, 32, 20, 0.05);
  --radius: 16px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101012;
    --card: #1b1b1e;
    --ink: #f2f0ec;
    --muted: #8f8c86;
    --faint: #2a2a2e;
    --line: #26262a;
    --accent: #5b8ff0;
    --tile: #222226;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.4 -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, "Segoe UI", Roboto, sans-serif;
  padding-bottom: calc(96px + env(safe-area-inset-bottom));
}
[hidden] { display: none !important; }
button { font: inherit; color: inherit; }

/* ---------- top bar ---------- */
.bar {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(10px + env(safe-area-inset-top)) 18px 10px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 650; letter-spacing: -0.01em; }
.brand img { border-radius: 6px; }
.bar-right { display: flex; align-items: center; gap: 6px; position: relative; }
.sync { width: 7px; height: 7px; border-radius: 50%; background: var(--faint); transition: background 0.3s; }
.sync.busy { background: var(--accent); }
.sync.err { background: var(--danger); }
.icon-btn { border: 0; background: transparent; width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; cursor: pointer; fill: var(--ink); }
.icon-btn:hover { background: var(--faint); }
.menu {
  position: absolute; right: 0; top: 44px; min-width: 230px; padding: 6px;
  background: var(--card); border-radius: 14px; box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18);
  border: 1px solid var(--line);
}
.menu button { display: block; width: 100%; text-align: left; border: 0; background: transparent; padding: 10px 12px; border-radius: 9px; cursor: pointer; }
.menu button:hover { background: var(--faint); }

/* ---------- days ---------- */
main { max-width: 640px; margin: 0 auto; padding: 4px 14px 0; }
.day { margin: 10px 0 22px; }
.day-head { display: flex; align-items: baseline; justify-content: space-between; padding: 0 6px 8px; }
.day-head h2 { margin: 0; font-size: 26px; letter-spacing: -0.02em; font-weight: 700; }
.day:not(.is-today) .day-head h2 { font-size: 20px; }
.day-head .date { color: var(--muted); font-size: 14px; }

.card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }

.tiles { display: flex; flex-wrap: wrap; gap: 1px; background: var(--line); border-bottom: 1px solid var(--line); }
.tile { flex: 1 1 72px; background: var(--tile); padding: 10px 10px 11px; min-width: 0; }
.tile .k { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tile .v { font-size: 19px; font-weight: 650; letter-spacing: -0.01em; margin-top: 2px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.tile .v.none { color: var(--faint); }

.entries { list-style: none; margin: 0; padding: 4px 0; }
.entry {
  display: grid; grid-template-columns: 54px 28px 1fr auto; align-items: start; gap: 8px;
  padding: 10px 14px 10px 10px; cursor: pointer; border-radius: 10px; margin: 0 4px;
}
.entry:hover { background: color-mix(in srgb, var(--faint) 55%, transparent); }
.entry .t { color: var(--muted); font-size: 13.5px; text-align: right; padding-top: 2px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.entry .e { font-size: 19px; line-height: 1.15; text-align: center; }
.entry .s { min-width: 0; overflow-wrap: anywhere; }
.entry .sub { color: var(--muted); font-size: 13px; margin-top: 1px; }
.entry .n { color: var(--muted); font-size: 14.5px; padding-top: 1px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.entry.new { animation: flash 1.6s ease-out; }
@keyframes flash { from { background: color-mix(in srgb, var(--accent) 22%, transparent); } to { background: transparent; } }

.empty { color: var(--muted); padding: 18px 18px 20px; font-size: 15px; }
.quiet { color: var(--muted); font-size: 14px; text-align: center; margin: 4px 0 18px; }
.more { text-align: center; margin: 8px 0 24px; }
.ghost { border: 1px solid var(--faint); background: transparent; border-radius: 999px; padding: 9px 18px; color: var(--muted); cursor: pointer; }
.ghost:hover { color: var(--ink); }

/* ---------- add button ---------- */
.fab {
  position: fixed; right: max(18px, calc(50vw - 320px + 4px)); bottom: calc(22px + env(safe-area-inset-bottom)); z-index: 6;
  width: 58px; height: 58px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--accent); color: var(--accent-ink); display: grid; place-items: center;
  box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 40%, transparent);
}
.fab:active { transform: scale(0.96); }

/* ---------- sign in ---------- */
.signin { min-height: 80vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 6px; padding: 24px; }
.signin img { border-radius: 16px; margin-bottom: 6px; }
.signin h1 { margin: 0; font-size: 30px; letter-spacing: -0.02em; }
.signin p { color: var(--muted); margin: 0 0 18px; }
.error { color: var(--danger) !important; min-height: 1.4em; margin-top: 14px !important; }

/* ---------- sheet (add / edit) ---------- */
.sheet {
  border: 0; padding: 0; margin: auto auto 0; width: 100%; max-width: 560px; max-height: 92vh;
  background: var(--card); color: var(--ink); border-radius: 20px 20px 0 0;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.2);
}
@media (min-width: 640px) { .sheet { margin: auto; border-radius: 20px; } }
.sheet::backdrop { background: rgba(10, 8, 5, 0.38); }
.sheet form { padding: 18px 18px calc(16px + env(safe-area-inset-bottom)); display: flex; flex-direction: column; gap: 12px; }
.sheet h3 { margin: 0 0 2px; font-size: 19px; display: flex; justify-content: space-between; align-items: center; }
.sheet h3 small { font-weight: 400; color: var(--muted); font-size: 13px; }
.row { display: flex; gap: 10px; }
.row > * { flex: 1; min-width: 0; }
.row > .narrow { flex: 0 0 76px; }
label.f { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; font-weight: 600; color: var(--muted); }
label.f .unit { font-weight: 400; }
input, select, textarea {
  font: inherit; font-size: 16px; color: var(--ink); background: var(--tile);
  border: 1px solid var(--faint); border-radius: 10px; padding: 9px 10px; width: 100%; min-width: 0;
}
textarea { resize: vertical; min-height: 64px; }
input:focus, select:focus, textarea:focus { outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent); outline-offset: 0; border-color: transparent; }
.emoji-in { text-align: center; font-size: 20px; padding: 6px; }
.fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }
.fields .wide { grid-column: 1 / -1; }

.rating { display: flex; gap: 4px; }
.rating button { flex: 1; min-width: 0; padding: 8px 0; border-radius: 8px; border: 1px solid var(--faint); background: var(--tile); cursor: pointer; font-variant-numeric: tabular-nums; font-size: 14px; }
.rating button.on { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

.items { display: flex; flex-direction: column; gap: 6px; }
.items .ih, .items .ir { display: grid; grid-template-columns: 1fr 58px 64px 64px 30px; gap: 6px; align-items: center; }
.items .ih span { font-size: 11px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.items .ir input { padding: 7px 8px; font-size: 15px; }
.items .lib { position: relative; }
.items .lib::after { content: "✓"; position: absolute; right: 8px; top: 50%; transform: translateY(-50%); color: #2c9a5a; font-size: 13px; pointer-events: none; }
.items .x { border: 0; background: transparent; color: var(--muted); font-size: 20px; cursor: pointer; padding: 0; }
.items .foot { display: flex; justify-content: space-between; align-items: center; font-size: 13.5px; color: var(--muted); }
.link { border: 0; background: transparent; color: var(--accent); cursor: pointer; padding: 4px 0; font-size: 14.5px; }

details { font-size: 14px; color: var(--muted); }
details summary { cursor: pointer; padding: 2px 0; }
details textarea { margin-top: 8px; font: 13px/1.45 ui-monospace, SFMono-Regular, Menlo, monospace; min-height: 120px; }

.actions { display: flex; gap: 10px; align-items: center; margin-top: 4px; }
.actions .spacer { flex: 1; }
.btn { border: 0; border-radius: 12px; padding: 11px 18px; cursor: pointer; font-weight: 600; }
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.plain { background: var(--faint); }
.btn.danger { background: transparent; color: var(--danger); padding-left: 4px; padding-right: 4px; }
.btn:disabled { opacity: 0.55; cursor: default; }
.form-error { color: var(--danger); font-size: 14px; min-height: 0; margin: 0; }

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: calc(96px + env(safe-area-inset-bottom)); transform: translate(-50%, 20px);
  background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 999px; font-size: 14.5px;
  opacity: 0; pointer-events: none; transition: opacity 0.2s, transform 0.2s; z-index: 20; white-space: nowrap;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }