:root {
    --bg: #211a52; --bg2: #0e0b26; --card: rgba(255,255,255,.06); --line: rgba(255,255,255,.17);
    --ink: #f3f0ff; --muted: #cdc4fb; --accent: #b4a6ff; --accent-ink: #1b1442; --field: rgba(255,255,255,.08);
    --soft: rgba(180,166,255,.16); --good: #8ce99a; --warn: #ffb35c; --warn-bg: rgba(255,179,92,.15); --bad: #ff8f8f; --bad-bg: rgba(255,120,120,.16); --bad-ink: #2a0b0b;
    color-scheme: dark;
}
@media (prefers-color-scheme: light) {
    :root { --bg: #f3f0ff; --bg2: #e5dfff; --card: #fff; --line: #d3cbf7; --ink: #1b1442; --muted: #51477e;
            --accent: #5b3fd9; --accent-ink: #fff; --field: #fbfaff; --soft: #ece8ff; --good: #2b8a3e; --warn: #b45309; --warn-bg: #fff1dc; --bad: #c92a2a; --bad-bg: #ffe8e8; --bad-ink: #fff; color-scheme: light; }
}
:root[data-theme="light"] { --bg: #f3f0ff; --bg2: #e5dfff; --card: #fff; --line: #d3cbf7; --ink: #1b1442; --muted: #51477e;
            --accent: #5b3fd9; --accent-ink: #fff; --field: #fbfaff; --soft: #ece8ff; --good: #2b8a3e; --warn: #b45309; --warn-bg: #fff1dc; --bad: #c92a2a; --bad-bg: #ffe8e8; --bad-ink: #fff; color-scheme: light; }
:root[data-theme="dark"] {
    --bg: #211a52; --bg2: #0e0b26; --card: rgba(255,255,255,.06); --line: rgba(255,255,255,.17);
    --ink: #f3f0ff; --muted: #cdc4fb; --accent: #b4a6ff; --accent-ink: #1b1442; --field: rgba(255,255,255,.08);
    --soft: rgba(180,166,255,.16); --good: #8ce99a; --warn: #ffb35c; --warn-bg: rgba(255,179,92,.15); --bad: #ff8f8f; --bad-bg: rgba(255,120,120,.16); --bad-ink: #2a0b0b;
    color-scheme: dark;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; padding: clamp(1rem,4vw,2.5rem) 1rem 4rem; display: flex; justify-content: center;
       font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink);
       background: var(--bg2) linear-gradient(180deg, var(--bg), var(--bg2) 900px) no-repeat; touch-action: manipulation; }
.app { width: min(560px, 100%); min-width: 0; display: flex; flex-direction: column; }
.col-main, .col-side { display: contents; }
.app > .topbar, .app > .back { order: 0; }
.app > header, .warn-box, .today, #top-msg { order: 1; }
.kids { order: 2; }
.add { order: 3; }
.settings { order: 4; }
.app > .faq { order: 6; }
.app > footer { order: 7; }
header { text-align: center; margin-bottom: 1.1rem; }
h1 { margin: 0; font-size: 1.7rem; line-height: 1.2; letter-spacing: -.02em; }
.sub { margin: .4rem 0 0; color: var(--muted); font-size: 1rem; }
h2 { margin: 0 0 .7rem; font-size: 1.15rem; overflow-wrap: anywhere; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 1.1rem; margin-bottom: .9rem; min-width: 0; }
label, legend { display: block; margin: .9rem 0 .35rem; font-size: .9rem; font-weight: 600; color: var(--muted); padding: 0; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; margin: 0; }
input[type=text], input[type=time], select { display: block; width: 100%; min-width: 0; max-width: 100%; min-height: 48px; padding: .6rem .8rem; font: inherit; font-size: 1.05rem; color: var(--ink);
       background: var(--field); border: 1px solid var(--line); border-radius: 12px; -webkit-appearance: none; appearance: none; }
select, input[type=time] { -webkit-appearance: auto; appearance: auto; }
input[aria-invalid="true"], select[aria-invalid="true"] { border-color: var(--bad); }
select option { color: #111; background: #fff; }
input:focus-visible, button:focus-visible, select:focus-visible, summary:focus-visible, a:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
::placeholder { color: var(--muted); opacity: .75; }
.hint { margin: .45rem 0 0; color: var(--muted); font-size: .88rem; overflow-wrap: anywhere; }
.hint:empty { display: none; }
[hidden] { display: none !important; }
.warn-box { margin: 0 0 .9rem; padding: .7rem .9rem; border-radius: 12px; background: var(--warn-bg); border-left: 5px solid var(--warn); font-weight: 600; }
.custom { margin-top: .5rem; }

/* buttons */
.primary, .secondary, .danger { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 48px; padding: .5rem .8rem; border-radius: 12px;
       font: inherit; font-weight: 700; text-align: center; text-decoration: none; cursor: pointer; line-height: 1.2; overflow-wrap: anywhere; }
.primary { border: 0; background: var(--accent); color: var(--accent-ink); }
.secondary { border: 1px solid var(--line); background: var(--field); color: var(--ink); font-weight: 600; }
.secondary:disabled, .secondary.off { opacity: .5; cursor: default; }
.danger { border: 1px solid var(--bad); background: transparent; color: var(--bad); font-weight: 600; margin-top: .9rem; }
.row-btns .danger { margin-top: 0; }
.link { display: block; min-height: 44px; margin-top: .3rem; padding: 0 .1rem; border: 0; background: none; color: var(--accent); font: inherit; font-size: .95rem; font-weight: 700; text-align: left; cursor: pointer; }
.err { margin: .4rem 0 0; color: var(--bad); font-weight: 600; font-size: .92rem; overflow-wrap: anywhere; }
.err:empty { margin: 0; }
.msg { margin: 0; color: var(--muted); font-size: .95rem; overflow-wrap: anywhere; }
.msg.show { display: flex; flex-wrap: wrap; align-items: center; gap: .3rem .8rem; margin: .2rem 0 .9rem; padding: .55rem .8rem; border-radius: 12px; background: var(--soft); color: var(--ink); border-left: 4px solid var(--accent); }
.msg.show.bad { background: var(--warn-bg); border-left-color: var(--bad); }
.msg .undo { min-height: 40px; padding: 0 .9rem; border: 1px solid var(--accent); border-radius: 10px; background: none; color: var(--accent); font: inherit; font-weight: 700; cursor: pointer; }
.kid .msg.show, .settings .msg.show { margin: .8rem 0 0; }
.row-btns { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.row-btns > * { flex: 1 1 9rem; width: auto; }
.tool-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: .5rem; margin-top: 1rem; }
.pair { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: .5rem; }
.preview { margin: 1rem 0 0; padding: .55rem .75rem; border-radius: 12px; background: var(--soft); font-weight: 600; overflow-wrap: anywhere; }
.preview:empty { display: none; }
.add form > label:first-child { margin-top: 0; }

/* today */
.today { display: flex; align-items: center; justify-content: space-between; gap: .6rem 1rem; flex-wrap: wrap; padding: .8rem 1rem; }
.today-text { min-width: 0; flex: 1 1 14rem; }
.today h2 { margin: 0; font-size: 1.05rem; }
.today-type { margin: .1rem 0 0; color: var(--muted); font-size: .93rem; }
.today-btn { flex: 0 1 auto; width: auto; min-height: 44px; }

/* a child's box */
.kids { display: grid; gap: 0; min-width: 0; }
.kid { border: 2px solid var(--line); border-top: 6px solid var(--accent); }
.kid.warn { border-color: var(--warn); background: var(--warn-bg); }
.kid.up { border-color: var(--bad); background: var(--bad-bg); }
.kid-head { display: flex; justify-content: space-between; align-items: center; gap: .3rem 1rem; flex-wrap: wrap; }
.kid-head h2 { margin: 0; font-size: 1.4rem; min-width: 0; }
.badge { padding: .15rem .6rem; border-radius: 999px; background: var(--soft); color: var(--ink); font-size: .85rem; font-weight: 600; }
.big { margin: .6rem 0 .5rem; display: flex; align-items: baseline; gap: .2rem .55rem; flex-wrap: wrap; min-width: 0; }
.big-num { font-size: 2.4rem; font-weight: 800; line-height: 1.1; color: var(--accent); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.big-label { color: var(--muted); font-weight: 600; font-size: 1.05rem; }
.kid.warn .big-num { color: var(--warn); }
.kid.up .big-num, .kid.none .big-num { color: var(--bad); }
.kid.none:not(.running) .big-num { color: var(--muted); font-size: 1.8rem; }
.bar { height: 14px; border-radius: 999px; background: var(--line); overflow: hidden; }
.bar span { display: block; height: 100%; border-radius: 999px; background: var(--accent); transition: width .4s; }
.kid.warn .bar span { background: var(--warn); }
.kid.up .bar span { background: var(--bad); }
.used { margin: .5rem 0 0; font-size: .97rem; overflow-wrap: anywhere; }
.alert { margin: .7rem 0 0; padding: .55rem .75rem; border-radius: 12px; font-weight: 700; border-left: 5px solid var(--warn); background: var(--card); overflow-wrap: anywhere; }
.kid.up .alert, .kid.none .alert { border-left-color: var(--bad); }
.go { margin-top: .9rem; min-height: 56px; font-size: 1.15rem; }
.go.stop { background: var(--ink); color: var(--bg2); }
.kid.up .go.stop, .kid.none .go.stop { background: var(--bad); color: var(--bad-ink); }
.since { margin: .5rem 0 0; color: var(--muted); font-size: .92rem; overflow-wrap: anywhere; }
.kid-btns { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: .4rem; margin-top: .9rem; }
.mini { min-height: 44px; padding: 0 .6rem; border: 1px solid var(--line); border-radius: 10px; background: none; color: var(--accent); font: inherit; font-size: .92rem; font-weight: 700; cursor: pointer; min-width: 0; line-height: 1.2; }
.mini[aria-expanded="true"] { background: var(--soft); border-color: var(--accent); }

/* past 7 days */
.week { margin-top: 1rem; padding-top: .8rem; border-top: 1px solid var(--line); }
.week-h { margin: 0 0 .5rem; font-size: .95rem; color: var(--muted); }
.days7 { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: .3rem; }
.days7 li { display: flex; flex-direction: column; align-items: center; gap: .2rem; min-width: 0; }
.col { position: relative; width: 100%; max-width: 34px; height: 56px; border-radius: 6px; background: var(--field); overflow: hidden; }
.col .lim { position: absolute; left: 0; right: 0; bottom: 0; border-top: 2px dashed var(--muted); }
.col .u { position: absolute; left: 3px; right: 3px; bottom: 0; border-radius: 4px 4px 0 0; background: var(--accent); }
.days7 li.over .u { background: var(--bad); }
.dmin { font-size: .74rem; font-weight: 700; white-space: nowrap; max-width: 100%; overflow: hidden; text-overflow: clip; }
.days7 li.over .dmin { color: var(--bad); }
.dname { font-size: .76rem; color: var(--muted); white-space: nowrap; max-width: 100%; overflow: hidden; }
.days7 li.is-today .dname { color: var(--ink); font-weight: 800; text-decoration: underline; text-underline-offset: 3px; }
.week-t { margin: .5rem 0 0; font-size: .92rem; color: var(--muted); }

/* the open form under a child */
.panel { margin-top: .9rem; padding: .9rem; border-radius: 14px; border: 2px solid var(--accent); background: var(--soft); min-width: 0; }
.panel-h { margin: 0; font-size: 1.05rem; overflow-wrap: anywhere; }
.panel .preview { background: var(--card); }
.panel > .hint:first-of-type { margin-top: .3rem; }
.quick { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .6rem; }
.chip { min-height: 40px; padding: 0 .75rem; border: 1px solid var(--line); border-radius: 999px; background: var(--field); color: var(--accent); font: inherit; font-size: .88rem; font-weight: 700; cursor: pointer; }
.entries { list-style: none; margin: .8rem 0 0; padding: 0; display: grid; gap: .4rem; }
.entries:empty { display: none; }
.entry { display: flex; align-items: center; justify-content: space-between; gap: .5rem; padding: .45rem .55rem .45rem .75rem; border: 1px solid var(--line); border-radius: 10px; background: var(--card); min-width: 0; }
.entry.editing { display: block; border: 2px solid var(--accent); }
.entry .mini { flex: 0 0 auto; padding: 0 .9rem; }
.e-info { display: flex; flex-direction: column; min-width: 0; }
.e-what { font-weight: 700; overflow-wrap: anywhere; margin: 0; }
.e-sub { font-size: .87rem; color: var(--muted); overflow-wrap: anywhere; }
.entry.bonus .e-what { color: var(--good); }
.empty { margin-top: .8rem; }

/* settings */
.check { display: flex; align-items: flex-start; gap: .55rem; margin-top: 1rem; color: var(--ink); font-weight: 600; font-size: .95rem; cursor: pointer; }
.check input { flex: none; width: 1.25rem; height: 1.25rem; margin: .1rem 0 0; accent-color: var(--accent); }
fieldset.days { border: 0; margin: 0; padding: 0; min-width: 0; }
.day-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .35rem; }
.day-chip { display: flex; align-items: center; gap: .35rem; margin: 0; min-height: 44px; padding: 0 .5rem; border: 1px solid var(--line); border-radius: 10px; background: var(--field); color: var(--ink); font-size: .92rem; cursor: pointer; }
.day-chip:has(input:checked) { border-color: var(--accent); background: var(--soft); }
.day-chip input { margin: 0; flex: none; width: 1.05rem; height: 1.05rem; accent-color: var(--accent); }

/* questions */
.faq { margin-top: 1.2rem; }
.faq details { border: 1px solid var(--line); border-radius: 12px; margin: 0 0 .5rem; background: var(--card); }
.faq summary { cursor: pointer; padding: .75rem .9rem; font-weight: 600; min-height: 44px; }
.faq details p { margin: 0; padding: 0 .9rem .8rem; color: var(--muted); }
footer { margin-top: 1.4rem; text-align: center; font-size: .9rem; }
footer a { color: var(--muted); }

.back { display: inline-flex; align-items: center; gap: .4rem; min-height: 44px; margin: 0 0 .5rem; padding: 0 1rem 0 .8rem; border: 1px solid var(--line, rgba(127,127,127,.4)); border-radius: 999px; color: var(--muted, var(--mut, inherit)); font-size: .92rem; font-weight: 600; text-decoration: none; background: transparent; }
.back:hover { color: var(--ink, inherit); border-color: currentColor; }
.back:focus-visible { outline: 3px solid var(--accent, var(--acc, #fff)); outline-offset: 2px; }

/* narrow phones */
@media (max-width: 420px) {
    .card { padding: 1rem .8rem; }
    .panel { padding: .8rem .65rem; }
    .row-btns > * { flex-basis: 100%; }
    h1 { font-size: 1.5rem; }
    .big-num { font-size: 2.1rem; }
    .today-btn { width: 100%; flex-basis: 100%; }
}
@media (max-width: 360px) {
    .topbar .theme-toggle { padding: 0; width: 44px; justify-content: center; }
    .topbar .theme-toggle span { display: none; }
    .pair, .tool-grid { grid-template-columns: minmax(0, 1fr); }
    .day-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .dmin { font-size: .68rem; }
    .days7 { gap: .15rem; }
}

/* laptops and desktops: the children on the left, adding and settings on the right */
@media (min-width: 900px) {
    .app { width: min(1140px, 100%); display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr); column-gap: 1.5rem; align-items: start; }
    .app > * { grid-column: 1 / -1; }
    .col-main, .col-side { display: block; min-width: 0; }
    .app > .topbar { grid-row: 1; }
    .app > header { grid-row: 2; }
    .app > .warn-box { grid-row: 3; }
    .app > .today { grid-row: 4; }
    .app > #top-msg { grid-row: 5; }
    .app > .col-main { grid-column: 1; grid-row: 6; }
    .app > .col-side { grid-column: 2; grid-row: 6; }
    .app > .faq { grid-row: 7; width: min(760px, 100%); justify-self: center; }
    .app > footer { grid-row: 8; width: min(760px, 100%); justify-self: center; }
    .app.setup > .col-main { display: none; }
    .app.setup > .col-side { grid-column: 1 / -1; width: min(620px, 100%); justify-self: center; }
    header h1 { font-size: 2.3rem; }
    .kid-btns { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .big-num { font-size: 2.8rem; }
    .col { max-width: 44px; height: 70px; }
}