:root {
  --accent: #1D7398;
  --accent-soft: #DDEFF6;
  --bg: #F4F6F8;
  --card: #FFFFFF;
  --text: #16202A;
  --muted: #64707C;
  --line: #E1E6EB;
  --good: #1F8A4C;
  --good-soft: #E3F4EA;
  --warn: #B4610F;
  --warn-soft: #FFF1DF;
  --bad: #B3261E;
  --radius: 14px;
  --tabbar-h: 62px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --accent: #5FB3DA;
    --accent-soft: #143543;
    --bg: #0F1519;
    --card: #1A2128;
    --text: #EDF1F4;
    --muted: #97A3AE;
    --line: #2B343C;
    --good: #5FC98A;
    --good-soft: #17301F;
    --warn: #F0A550;
    --warn-soft: #3A2A12;
    --bad: #F2857B;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; } /* rules like .form label { display: block } must not un-hide */
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  padding-bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
  overscroll-behavior-y: none;
}
button, input, textarea, select { font: inherit; color: inherit; }
h1, h2, h3 { margin: 0; }

.topbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(12px + env(safe-area-inset-top)) 16px 10px;
  background: var(--bg);
}
.topbar h1 { font-size: 28px; font-weight: 700; letter-spacing: -0.3px; }
.topbar-actions { display: flex; gap: 8px; }

.screen { padding: 4px 16px 24px; max-width: 640px; margin: 0 auto; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  margin-bottom: 14px;
  overflow: hidden;
}
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px 8px;
}
.card-head h2 { font-size: 17px; font-weight: 650; display: flex; align-items: center; gap: 8px; }
.card-head .sub { color: var(--muted); font-size: 13px; font-weight: 500; }
.card-head .count { color: var(--muted); font-size: 13px; }
.card-head .count.done { color: var(--good); font-weight: 600; }
.card-head .count.overdue { color: var(--warn); font-weight: 600; }

.dose-row {
  display: flex; align-items: center; gap: 12px; width: 100%;
  padding: 12px 14px; border: 0; border-top: 1px solid var(--line);
  background: transparent; text-align: left; cursor: pointer;
}
.dose-row:active { background: var(--accent-soft); }
.dose-row .box {
  flex: 0 0 auto; width: 30px; height: 30px; border-radius: 50%;
  border: 2px solid var(--line); display: grid; place-items: center;
  font-size: 18px; color: transparent; transition: all .12s ease;
}
.dose-row.taken .box { background: var(--good); border-color: var(--good); color: #fff; }
.dose-row .body { flex: 1 1 auto; min-width: 0; }
.dose-row .name { font-size: 17px; font-weight: 600; }
.dose-row.taken .name { color: var(--muted); text-decoration: line-through; text-decoration-color: var(--line); }
.dose-row .meta { font-size: 13px; color: var(--muted); margin-top: 2px; }
.dose-row .when { font-size: 13px; color: var(--good); font-weight: 600; white-space: nowrap; }

.card-foot { padding: 10px 14px; border-top: 1px solid var(--line); display: flex; gap: 8px; justify-content: flex-end; }

.day-nav {
  display: flex; align-items: center; justify-content: space-between;
  margin: 4px 0 14px;
}
.day-nav .label { font-weight: 650; font-size: 17px; }
.day-nav .label small { display: block; color: var(--muted); font-weight: 500; font-size: 13px; }

.btn {
  appearance: none; border: 1px solid var(--line); background: var(--card);
  color: var(--text); border-radius: 10px; padding: 9px 14px; font-weight: 600;
  cursor: pointer; font-size: 15px;
}
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.subtle { background: transparent; border-color: transparent; color: var(--accent); }
.btn.danger { background: transparent; border-color: var(--bad); color: var(--bad); }
.btn.icon { padding: 8px 12px; font-size: 18px; line-height: 1; }
.btn.block { display: block; width: 100%; text-align: center; }
.btn[disabled] { opacity: .45; cursor: default; }

.summary { display: flex; gap: 10px; margin-bottom: 14px; }
.stat {
  flex: 1; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 14px;
}
.stat .n { font-size: 24px; font-weight: 700; }
.stat .l { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

.list-row {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px;
  border-top: 1px solid var(--line);
}
.list-row:first-child { border-top: 0; }
.list-row .body { flex: 1; min-width: 0; }
.list-row .name { font-weight: 600; font-size: 16px; }
.list-row .meta { font-size: 13px; color: var(--muted); }
.list-row.inactive .name { color: var(--muted); }
.list-row .actions { display: flex; gap: 4px; }
.pill {
  display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: var(--accent-soft); color: var(--accent);
}
.pill.off { background: var(--line); color: var(--muted); }

.hist-row {
  display: grid; grid-template-columns: 1fr auto auto; gap: 12px; align-items: center;
  padding: 11px 14px; border-top: 1px solid var(--line);
}
.hist-row:first-child { border-top: 0; }
.hist-row .d { font-weight: 600; }
.hist-row .d small { display: block; color: var(--muted); font-weight: 500; font-size: 12px; }
.dots { display: flex; gap: 4px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.dot.on { background: var(--good); }
.dot.miss { background: var(--bad); opacity: .7; }
.score { font-weight: 700; min-width: 44px; text-align: right; }
.score.full { color: var(--good); }
.score.part { color: var(--warn); }
.score.none { color: var(--bad); }

.empty { padding: 24px 16px; text-align: center; color: var(--muted); }
.empty strong { display: block; color: var(--text); margin-bottom: 6px; }

.form { padding: 0; }
.form label { display: block; font-size: 13px; color: var(--muted); font-weight: 600; margin-bottom: 12px; }
.form input[type="text"], .form input[type="password"], .form input[type="time"], .form input[type="date"], .form textarea {
  display: block; width: 100%; margin-top: 5px; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--bg); font-size: 16px;
}
.form fieldset { border: 0; padding: 0; margin: 0 0 12px; }
.form legend { font-size: 13px; color: var(--muted); font-weight: 600; margin-bottom: 6px; }
.form .check { display: flex; align-items: center; gap: 10px; font-size: 16px; color: var(--text); font-weight: 500; margin-bottom: 10px; }
.form .check input { width: 20px; height: 20px; accent-color: var(--accent); }
.form-actions { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
.spacer { flex: 1; }

dialog {
  border: 0; border-radius: 16px; padding: 18px; width: min(92vw, 440px);
  background: var(--card); color: var(--text);
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
dialog::backdrop { background: rgba(0,0,0,.45); }
dialog h2 { font-size: 20px; margin-bottom: 14px; }

.settings-row {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 14px; border-top: 1px solid var(--line);
}
.settings-row:first-child { border-top: 0; }
.settings-row .l { font-weight: 600; }
.settings-row .l small { display: block; color: var(--muted); font-weight: 500; font-size: 13px; margin-top: 2px; }
.settings-row input[type="time"] {
  padding: 6px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); font-size: 16px;
}
.note { padding: 10px 14px 14px; font-size: 13px; color: var(--muted); line-height: 1.45; }
.note code { background: var(--bg); padding: 1px 5px; border-radius: 5px; }

/* Sync and push (v1.1) */
.sync-line { margin: -6px 0 12px; text-align: center; font-size: 13px; color: var(--muted); }
.sync-line.warn {
  text-align: left; color: var(--warn); background: var(--warn-soft); font-weight: 600;
  padding: 8px 12px; border-radius: 10px; line-height: 1.4;
}
.status.bad, .sync-error { color: var(--bad); }
.sync-error { font-size: 14px; font-weight: 600; margin: -4px 0 8px; }
.sync-error:empty { display: none; }
/* Day-of-week doses, as-needed log, updates (v2.0) */
.dose-row .meta { display: flex; flex-wrap: wrap; gap: 4px 8px; align-items: center; }
.dose-row .meta .dose { font-weight: 700; color: var(--text); font-size: 15px; }
.dose-row.taken .meta .dose { color: var(--muted); }
.dose-note { color: var(--warn); font-weight: 600; }
.form input[type="date"] {
  display: block; width: 100%; margin-top: 5px; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--bg); font-size: 16px;
}
.form label small { display: block; font-weight: 500; margin-top: 4px; }
/* Dose grid (v2.1): one box, or split by meal and/or weekday */
.dose-grid label { margin-bottom: 8px; }
.dg { display: grid; gap: 6px 8px; align-items: center; margin-bottom: 8px; }
.dg-h { font-size: 13px; color: var(--muted); font-weight: 700; }
.dg-r { font-size: 14px; font-weight: 600; padding-right: 4px; }
.form .dg input { width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); font-size: 16px; min-width: 0; }
.dose-options { margin: 4px 0 6px; }
.dose-options .check { font-size: 15px; }
.dose-summary { font-size: 14px; font-weight: 700; color: var(--accent); margin-bottom: 12px; }
.dose-summary:empty { display: none; }
.sched-history { font-size: 13px; color: var(--muted); line-height: 1.5; margin: 4px 0 8px; }
.sched-history strong { color: var(--text); }
.dialog-sub { margin: -8px 0 14px; color: var(--muted); font-size: 14px; }
.prn-log .when { font-size: 13px; color: var(--good); font-weight: 600; }
.prn-buttons { flex-wrap: wrap; justify-content: flex-start; }
.prn-hist { grid-template-columns: auto 1fr auto; }
.prn-list { font-size: 13px; color: var(--muted); line-height: 1.5; }
.update-banner {
  position: sticky; top: 0; z-index: 20; display: flex; gap: 10px; align-items: center; justify-content: space-between;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px; background: var(--warn-soft); color: var(--warn);
  font-weight: 600; font-size: 14px;
}

.code-box {
  display: block; width: calc(100% - 28px); margin: 0 14px; padding: 8px 10px;
  font: 12px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; word-break: break-all;
  border: 1px solid var(--line); border-radius: 8px; background: var(--bg); resize: vertical;
}

.tabbar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 5;
  display: flex; height: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--card); border-top: 1px solid var(--line);
}
.tabbar a {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; text-decoration: none; color: var(--muted); font-size: 11px; font-weight: 600;
}
.tabbar a.active { color: var(--accent); }
.tab-icon { font-size: 20px; line-height: 1; }

.toast {
  position: fixed; left: 50%; bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 14px);
  transform: translateX(-50%) translateY(20px);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 999px;
  font-size: 14px; font-weight: 600; opacity: 0; pointer-events: none; transition: all .18s ease;
  z-index: 10; max-width: 90vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (min-width: 720px) {
  body { padding-bottom: 0; padding-top: 0; }
  .tabbar { position: sticky; top: 0; bottom: auto; height: 52px; padding-bottom: 0; }
  .tabbar a { flex-direction: row; gap: 6px; font-size: 14px; }
  .topbar { position: static; }
}