:root {
  --bg:#0b0f14; --card:#151b23; --ink:#e8eef5; --muted:#8ea0b5; --accent:#3aa0ff;
  --line:#243040;      /* card borders and dividers (decorative) */
  --control:#5a6d85;   /* control borders: ≥3:1 against the input and card fills (WCAG 1.4.11) */
  --ok:#5fd39a; --danger-bg:#3a1414; --danger-ink:#ffb4b4; --danger-line:#7a3030;
}
* { box-sizing:border-box; }
[hidden] { display:none !important; }
body { margin:0; background:var(--bg); color:var(--ink); font:16px/1.4 system-ui,sans-serif; padding-bottom:calc(72px + env(safe-area-inset-bottom)); }
.topbar { position:sticky; top:0; z-index:5; background:var(--bg); padding:14px 16px; border-bottom:1px solid var(--line); }
.topbar h1 { margin:0; font-size:20px; }
h2 { font-size:18px; margin:0; }
h3 { font-size:15px; margin:0; }
p { margin:0; }
#screen { padding:16px; display:flex; flex-direction:column; gap:12px; }

.card { background:var(--card); border:1px solid var(--line); border-radius:12px; padding:12px; }
.card-title { font-weight:600; }
.stack { display:flex; flex-direction:column; gap:8px; }
.row { display:flex; gap:8px; align-items:center; }
.grow { flex:1; min-width:0; }
.grid-2 { display:grid; grid-template-columns:repeat(2, minmax(0, 1fr)); gap:8px; }
.grid-3 { display:grid; grid-template-columns:repeat(3, minmax(0, 1fr)); gap:8px; }
.muted { color:var(--muted); }
.small { font-size:13px; }
.ok { color:var(--ok); }
.error { color:var(--danger-ink); }
.error:empty { display:none; }

button { font:inherit; color:var(--ink); background:var(--card); border:1px solid var(--control); border-radius:10px; padding:12px 14px; min-height:44px; cursor:pointer; }
button.primary { background:var(--accent); color:#06121f; border:1px solid transparent; font-weight:600; }
button.link { background:none; border:none; color:var(--accent); padding:8px 0; text-align:left; align-self:flex-start; }
button:disabled { opacity:.45; cursor:default; }
input:not([type="checkbox"]):not([type="radio"]), select { font:inherit; color:var(--ink); background:#0e141b; border:1px solid var(--control); border-radius:10px; padding:12px; min-height:44px; width:100%; }
input[type="checkbox"] { width:24px; height:24px; margin:0; flex:none; accent-color:var(--accent); }
label.row { min-height:44px; }
:focus-visible { outline:2px solid var(--accent); outline-offset:2px; }

.btn-block { width:100%; min-height:56px; font-size:17px; }
.icon-btn { min-width:48px; min-height:48px; padding:8px; font-size:20px; line-height:1; }
.icon-spacer { display:inline-block; width:48px; flex:none; }

.tabbar { position:fixed; bottom:0; left:0; right:0; z-index:5; display:grid; grid-template-columns:repeat(6,1fr); background:var(--card); border-top:1px solid var(--line); padding-bottom:env(safe-area-inset-bottom); }
.tabbar button { border:none; border-radius:0; min-height:56px; font-size:12px; padding:0 2px; color:var(--muted); background:none; }
/* Active tab: colour + weight + a top bar, never colour alone (WCAG 1.4.1). */
.tabbar button[aria-current="true"] { color:var(--accent); font-weight:600; box-shadow:inset 0 3px 0 var(--accent); }

.save-error { background:var(--danger-bg); color:var(--danger-ink); border:1px solid var(--danger-line); border-radius:12px; padding:12px; font-weight:600; }

/* Log start */
.upnext h2 { font-size:20px; }
.nudge { text-align:left; border-color:#8a6d1f; background:#2a2310; }

/* Focus view and overview */
.focus-head { display:flex; align-items:center; gap:4px; }
.focus-head .pos { flex:1; text-align:center; color:var(--muted); }
.focus-head h2 { flex:1; min-width:0; }
.clock { font-variant-numeric:tabular-nums; min-width:56px; text-align:right; }
.ex-name { font-size:19px; }
.set-line { display:flex; justify-content:space-between; align-items:center; width:100%; text-align:left; font-variant-numeric:tabular-nums; }
.set-line.editing { border-color:var(--accent); }
.stepper { display:grid; grid-template-columns:72px minmax(0,1fr) 72px; gap:8px; align-items:center; }
.stepper-btn { min-height:56px; font-size:18px; font-weight:600; }
.stepper-value { min-height:56px; font-size:30px; font-weight:700; background:none; border:1px dashed transparent; font-variant-numeric:tabular-nums; }
.stepper-input { min-height:56px; font-size:26px; text-align:center; }
.chips { display:flex; flex-wrap:wrap; gap:8px; }
.chip { min-height:44px; padding:8px 14px; border-radius:999px; }
.chip[aria-pressed="true"], .chip[aria-checked="true"] { background:var(--accent); color:#06121f; border-color:var(--accent); font-weight:600; }
.chips.rir .chip { flex:1; min-height:56px; padding:8px 0; }
.menu { display:flex; flex-direction:column; gap:8px; }
.summary { font-size:20px; font-weight:600; }

/* Lists */
.list-row, .pick-row { display:flex; justify-content:space-between; align-items:center; gap:12px; width:100%; text-align:left; }
.list-row.done { border-color:#2f6b4f; }
.pick-row.add { color:var(--accent); }
.group-head { color:var(--muted); font-size:13px; font-weight:600; margin-top:8px; }
.history-card { display:block; width:100%; text-align:left; }
.history-card > span { display:block; }
.empty { display:flex; align-items:center; gap:12px; }

/* Toast: above the tab bar, one at a time */
.toast { position:fixed; left:16px; right:16px; bottom:calc(68px + env(safe-area-inset-bottom)); z-index:10; display:flex; align-items:center; justify-content:space-between; gap:12px; background:#223043; border:1px solid var(--control); border-radius:12px; padding:10px 12px; }
.toast button { min-height:44px; }