/* KaAral. Mobile first, light and dark, no framework, no web fonts (nothing leaves the device for styling). */
:root {
  --bg: #f5f3ff; --bg2: #e9e4ff; --card: #ffffff; --ink: #1f1b3d; --mut: #5f5b80; --line: #e2ddf7;
  --pri: #5a45e0; --pri2: #6c52f2; --pri-ink: #ffffff; --pri-soft: #ece8ff;
  --blue: #1d62c4; --blue-soft: #e0eeff; --amber: #a85f00; --amber-soft: #ffefcf;
  --ok: #0b7a54; --ok-soft: #d9f5e8; --bad: #c92a3a; --bad-soft: #fde4e6; --warn: #8a5300; --warn-soft: #fff1d6;
  --sun: #f5b301;
  --shadow: 0 1px 2px rgba(48, 30, 120, .06), 0 8px 22px rgba(48, 30, 120, .08);
  --glow: 0 8px 20px rgba(90, 69, 224, .30);
  --r: 18px;
  --font: ui-rounded, "SF Pro Rounded", "Nunito", "Segoe UI Variable", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #110f26; --bg2: #1a1642; --card: #1b1840; --ink: #efecff; --mut: #aca8d3; --line: #302c5e;
    --pri: #a291ff; --pri2: #8a76ff; --pri-ink: #130e3a; --pri-soft: #2a2563;
    --blue: #7db4ff; --blue-soft: #1c2d52; --amber: #f2b24d; --amber-soft: #3d2f12;
    --ok: #4cd09b; --ok-soft: #12382b; --bad: #ff8a93; --bad-soft: #43202a; --warn: #f2b24d; --warn-soft: #3f3016;
    --sun: #ffd24a;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 22px rgba(0, 0, 0, .32);
    --glow: 0 8px 20px rgba(0, 0, 0, .4);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; min-height: 100vh; color: var(--ink); font: 16px/1.5 var(--font); background: var(--bg) linear-gradient(180deg, var(--bg2) 0, var(--bg) 340px) no-repeat; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 8px; letter-spacing: -.01em; }
h1 { font-size: 1.25rem; } h2 { font-size: 1.15rem; } h3 { font-size: 1.05rem; }
a { color: var(--pri); }
:focus-visible { outline: 3px solid var(--pri); outline-offset: 2px; border-radius: 8px; }
.hidden { display: none !important; }
.muted { color: var(--mut); } .fine { color: var(--mut); font-size: .85rem; } .big { font-size: 1.1rem; }
.center { text-align: center; } .wide { width: 100%; }

/* ---- bars ---- */
.topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 10px; padding: 10px 16px; padding-top: calc(10px + env(safe-area-inset-top)); background: var(--card); background: color-mix(in srgb, var(--card) 86%, transparent); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.topbar .brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; font-size: 1.1rem; color: var(--pri); letter-spacing: -.01em; }
.topbar .brand img { display: block; border-radius: 9px; }
.topbar .titles { flex: 1; min-width: 0; } .topbar h1 { margin: 0; font-size: 1.15rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar .sub { color: var(--mut); font-size: .85rem; } .topbar .right { display: flex; align-items: center; gap: 8px; }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border: 0; border-radius: 14px; background: transparent; color: var(--ink); cursor: pointer; text-decoration: none; }
.icon-btn:hover { background: var(--pri-soft); } .icon-btn.danger { color: var(--bad); }

/* ---- layout ---- */
.page { max-width: 1080px; margin: 0 auto; padding: 18px 16px 28px; }
.page.narrow { max-width: 640px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 18px; margin: 0 0 16px; box-shadow: var(--shadow); }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 10px 0 0; }
.row.spread { justify-content: space-between; margin-top: 0; } .row.center { justify-content: center; }
.cards { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); margin-bottom: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 16px; box-shadow: var(--shadow); margin-bottom: 12px; }
.cards .card { margin: 0; }
.sect { margin: 24px 0 10px; font-size: .85rem; color: var(--mut); text-transform: uppercase; letter-spacing: .08em; }

/* ---- controls ---- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 10px 18px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); color: var(--ink); font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; transition: transform .08s ease, background .15s ease, box-shadow .15s ease, filter .15s ease; }
.btn:hover { background: var(--pri-soft); } .btn:active { transform: translateY(1px) scale(.99); }
.btn.primary { background: var(--pri); background: linear-gradient(135deg, var(--pri), var(--pri2)); border-color: transparent; color: var(--pri-ink); box-shadow: var(--glow); }
.btn.primary:hover { filter: brightness(1.07); }
.btn.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn.small { min-height: 38px; padding: 6px 14px; font-size: .9rem; } .btn.big { min-height: 56px; padding: 12px 24px; font-size: 1.1rem; border-radius: 16px; }
.btn:disabled { opacity: .5; cursor: not-allowed; box-shadow: none; } .danger-text { color: var(--bad); }
.linkish { background: none; border: 0; color: var(--pri); font: inherit; text-decoration: underline; cursor: pointer; padding: 10px 0; }
.field { display: block; margin: 0 0 12px; } .field > span, .lbl { display: block; font-size: .85rem; font-weight: 700; color: var(--mut); margin-bottom: 4px; }
input[type=text], input[type=email], input[type=password], select, textarea { width: 100%; min-height: 46px; padding: 10px 12px; border: 1.5px solid var(--line); border-radius: 12px; background: var(--card); color: var(--ink); font: inherit; transition: border-color .15s ease, box-shadow .15s ease; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--pri); box-shadow: 0 0 0 3px var(--pri-soft); }
textarea { resize: vertical; }
input.pin { font-size: 1.6rem; letter-spacing: .5rem; text-align: center; }
.chip { display: inline-block; padding: 2px 10px; border-radius: 99px; background: var(--pri-soft); color: var(--pri); font-size: .8rem; font-weight: 700; }
.chip.ok { background: var(--ok-soft); color: var(--ok); } .chip.warn { background: var(--warn-soft); color: var(--warn); } .chip.bad { background: var(--bad-soft); color: var(--bad); }
.alert { padding: 12px 14px; border-radius: 14px; margin: 12px 0; } .alert.bad { background: var(--bad-soft); color: var(--bad); }
.tips { margin: 0 0 14px; padding-left: 20px; color: var(--mut); } .tips li { margin: 4px 0; }

/* ---- welcome (first visit, no children yet) ---- */
.welcome { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 14px; margin: 0 0 16px; padding: 24px 22px; border-radius: 26px; overflow: hidden; color: #fff; background: radial-gradient(60% 90% at 100% 0%, rgba(255, 255, 255, .20), transparent 70%), linear-gradient(135deg, #4a33d0, #5a45e0 55%, #4f5fe0); box-shadow: 0 16px 36px rgba(74, 51, 208, .30); }
.welcome h2 { margin: 0 0 8px; font-size: 1.7rem; color: #fff; }
.welcome p { margin: 0; max-width: 42ch; color: rgba(255, 255, 255, .94); }
.welcome-art { flex: none; width: 150px; height: auto; }
@media (max-width: 540px) { .welcome { flex-direction: column-reverse; text-align: center; padding: 20px 18px; } .welcome-art { width: 128px; } }
.steps { list-style: none; margin: 0 0 14px; padding: 0; display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { display: flex; align-items: flex-start; gap: 12px; padding: 14px; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); }
.steps .n { flex: none; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--pri-soft); color: var(--pri); font-weight: 800; }
.steps strong { display: block; } .steps small { color: var(--mut); }
.trust { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 0 0 18px; color: var(--mut); font-size: .9rem; font-weight: 600; }
.trust svg { width: 18px; height: 18px; color: var(--ok); }
.nudge { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 14px; margin: 0 0 16px; padding: 14px 16px; background: var(--pri-soft); border: 1px solid var(--line); border-left: 5px solid var(--pri); border-radius: var(--r); }
.nudge-ico { flex: none; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 14px; background: var(--card); color: var(--pri); }
.nudge-body { flex: 1 1 260px; } .nudge-body p { margin: 2px 0 0; color: var(--mut); font-size: .92rem; } .nudge .row { margin: 0; }

/* ---- home and child ---- */
.card.child { box-shadow: inset 0 5px 0 hsl(var(--h, 250) 70% 56%), var(--shadow); padding-top: 20px; }
.who { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.avatar { width: 52px; height: 52px; border-radius: 50%; background: var(--pri); background: linear-gradient(135deg, hsl(var(--h, 250) 70% 48%), hsl(calc(var(--h, 250) + 38) 70% 40%)); color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 1.4rem; box-shadow: 0 6px 14px rgba(40, 30, 100, .22); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 0 0 8px; }
.stats.wide { grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); }
.stats > div { background: var(--bg); border-radius: 12px; padding: 8px 10px; text-align: center; }
.stats dt { font-size: .75rem; color: var(--mut); display: flex; gap: 4px; justify-content: center; align-items: center; } .stats dd { margin: 0; font-size: 1.5rem; font-weight: 800; }
.stats .s-due dd { color: var(--pri); } .stats .s-bad dd { color: var(--bad); } .stats .s-ok dd { color: var(--ok); }
.hero-actions { margin-bottom: 14px; }
.tiles { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin-bottom: 16px; }
.tile { display: flex; align-items: center; gap: 14px; width: 100%; text-align: left; padding: 16px; border: 1px solid var(--line); border-radius: var(--r); background: var(--card); color: var(--ink); text-decoration: none; cursor: pointer; font: inherit; box-shadow: var(--shadow); transition: transform .1s ease, border-color .15s ease, box-shadow .15s ease; }
.tile:hover { border-color: var(--pri); transform: translateY(-1px); } .tile:active { transform: translateY(1px); }
.tile .ico { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px; background: var(--pri-soft); color: var(--pri); flex: none; }
.tile .t { display: flex; flex-direction: column; } .tile small { color: var(--mut); }
.tile.t-lesson .ico { background: var(--blue-soft); color: var(--blue); }
.tile.t-quiz .ico { background: var(--amber-soft); color: var(--amber); }
.tile.t-bank .ico { background: var(--bad-soft); color: var(--bad); }
.tile.t-lib .ico { background: var(--ok-soft); color: var(--ok); }
.tile.primary { background: var(--pri); background: linear-gradient(135deg, var(--pri), var(--pri2)); color: var(--pri-ink); border-color: transparent; box-shadow: var(--glow); }
.tile.primary .ico { background: rgba(255, 255, 255, .22); color: var(--pri-ink); } .tile.primary small { color: inherit; opacity: .92; } .tile.primary strong { font-size: 1.15rem; }
.inline-form { display: grid; gap: 10px; grid-template-columns: 1fr; align-items: end; } @media (min-width: 560px) { .inline-form { grid-template-columns: 2fr 1fr auto; } .inline-form .field { margin: 0; } }
.qview.off { opacity: .55; } .qview .row { margin-top: 8px; }

/* ---- scanning ---- */
.reading { text-align: center; padding: 38px 16px; }
.spinner { width: 46px; height: 46px; margin: 0 auto 14px; border: 5px solid var(--pri-soft); border-top-color: var(--pri); border-radius: 50%; animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.review { display: grid; gap: 16px; padding-bottom: 110px; }
@media (min-width: 900px) { .review { grid-template-columns: minmax(300px, 400px) 1fr; align-items: start; } .photo-panel { position: sticky; top: 76px; } }
.photos { max-height: 42vh; overflow: auto; border-radius: 12px; border: 1px solid var(--line); } @media (min-width: 900px) { .photos { max-height: calc(100vh - 220px); } }
.photos img { display: block; width: 100%; height: auto; }
.meta { display: grid; gap: 0 12px; grid-template-columns: 1fr; } @media (min-width: 640px) { .meta { grid-template-columns: 2fr 1fr 1fr; } }
.aibar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; background: var(--warn-soft); color: var(--ink); border-radius: 14px; padding: 12px 14px; margin: 4px 0 14px; }
.qcard { border: 1px solid var(--line); border-left: 6px solid var(--line); border-radius: 14px; padding: 12px; margin: 0 0 12px; background: var(--bg); }
.qcard.m-correct { border-left-color: var(--ok); } .qcard.m-wrong { border-left-color: var(--bad); }
.qhead { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; } .qnum { display: grid; place-items: center; min-width: 30px; height: 30px; border-radius: 50%; background: var(--pri); color: var(--pri-ink); font-weight: 800; font-size: .9rem; }
.kindsel { flex: 1; min-height: 38px; }
.markrow { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin: 4px 0 12px; } .markrow .lbl { margin: 0; }
.seg { display: inline-flex; border: 1.5px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--card); }
.seg button { display: inline-flex; align-items: center; gap: 6px; min-height: 42px; padding: 8px 14px; border: 0; border-right: 1px solid var(--line); background: transparent; color: var(--ink); font: inherit; font-weight: 700; cursor: pointer; } .seg button:last-child { border-right: 0; }
.seg button.on { background: var(--pri); color: var(--pri-ink); } .seg button.on.ok { background: var(--ok); color: #fff; } .seg button.on.bad { background: var(--bad); color: #fff; }
.aihint { font-size: .8rem; padding: 2px 8px; border-radius: 99px; background: var(--card); border: 1px dashed var(--line); color: var(--mut); }
.fix { margin: 6px 0 8px; } .hint { color: var(--mut); font-size: .9rem; }
.choice-edit { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; } .choice-edit input[type=radio] { width: 22px; height: 22px; flex: none; accent-color: var(--ok); }
.probs { margin-top: 6px; } .prob { color: var(--bad); font-size: .9rem; font-weight: 700; }
.savebar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px calc(12px + env(safe-area-inset-bottom)); background: var(--card); border-top: 1px solid var(--line); box-shadow: 0 -8px 22px rgba(48, 30, 120, .12); }
.sumtxt { flex: 1; font-weight: 700; }

/* ---- practice (the child's screen) ---- */
.topbar.kid { background: var(--pri-soft); }
.kid-page { padding-top: 8px; }
.dots { display: flex; gap: 6px; justify-content: center; margin: 12px 0 6px; } .dots span { width: 12px; height: 12px; border-radius: 50%; background: var(--line); transition: transform .2s ease, background .2s ease; } .dots .done { background: var(--ok); } .dots .now { background: var(--pri); transform: scale(1.35); }
.qlabel { text-align: center; color: var(--mut); font-weight: 700; margin-bottom: 8px; }
.qbig { background: var(--card); border: 1px solid var(--line); border-radius: 26px; padding: 26px 18px 22px; box-shadow: inset 0 6px 0 var(--pri), var(--shadow); }
.srcline { color: var(--mut); font-size: .85rem; margin-bottom: 8px; text-align: center; }
.qline { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 18px; }
.qtext { flex: 1; font-size: clamp(1.5rem, 6vw, 2.3rem); font-weight: 800; line-height: 1.25; }
.speak { flex: none; display: grid; place-items: center; width: 58px; height: 58px; border: 0; border-radius: 50%; background: var(--pri-soft); color: var(--pri); cursor: pointer; transition: transform .1s ease; } .speak:active { transform: scale(.94); } .speak svg { width: 28px; height: 28px; }
.options { display: grid; gap: 12px; grid-template-columns: 1fr; } @media (min-width: 700px) { .options { grid-template-columns: 1fr 1fr; } } .options.two { grid-template-columns: 1fr 1fr; }
.option { min-height: 68px; padding: 12px 16px; border: 2px solid var(--line); border-radius: 20px; background: var(--card); color: var(--ink); font: inherit; font-size: 1.25rem; font-weight: 800; cursor: pointer; transition: transform .08s ease, border-color .15s ease, background .15s ease; }
.option:active:not(:disabled) { transform: scale(.985); }
.options:not(.two) { counter-reset: opt; }
.options:not(.two) .option { counter-increment: opt; display: flex; align-items: center; gap: 12px; text-align: left; }
.options:not(.two) .option::before { content: counter(opt, upper-alpha); flex: none; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--pri-soft); color: var(--pri); font-weight: 800; font-size: 1rem; }
.option:hover:not(:disabled) { border-color: var(--pri); background: var(--pri-soft); }
.option.ok { border-color: var(--ok); background: var(--ok-soft); color: var(--ok); } .option.bad { border-color: var(--bad); background: var(--bad-soft); color: var(--bad); } .option.dim { opacity: .45; }
.typed { display: flex; flex-direction: column; gap: 12px; } .typed input { min-height: 64px; font-size: 1.5rem; border-radius: 18px; text-align: center; }
.feedback { display: flex; align-items: center; gap: 12px; margin: 18px 0 12px; padding: 14px 16px; border-radius: 18px; font-size: 1.15rem; animation: rise .25s ease both; }
.feedback.ok { background: var(--ok-soft); color: var(--ok); } .feedback.bad { background: var(--bad-soft); color: var(--bad); } .feedback b { color: var(--ink); font-size: 1.3rem; }
.fb-icon svg { width: 32px; height: 32px; } .next { width: 100%; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.stars { display: flex; justify-content: center; gap: 8px; margin: 6px 0; } .star svg { width: 60px; height: 60px; color: var(--line); } .star.on svg { color: var(--sun); filter: drop-shadow(0 4px 8px rgba(245, 179, 1, .35)); animation: pop .5s cubic-bezier(.2, 1.6, .4, 1) both; }
.star:nth-child(2).on svg { animation-delay: .12s; } .star:nth-child(3).on svg { animation-delay: .24s; }
@keyframes pop { from { opacity: 0; transform: scale(.3) rotate(-25deg); } to { opacity: 1; transform: none; } }
.redo { text-align: left; margin: 16px 0; } .redo ul { padding-left: 20px; } .redo li { margin: 6px 0; } .redo b { color: var(--ok); }

/* ---- toast and dialog ---- */
#toast { position: fixed; left: 50%; bottom: calc(90px + env(safe-area-inset-bottom)); transform: translate(-50%, 20px); max-width: min(92vw, 520px); padding: 12px 18px; border-radius: 14px; background: #1f1b3d; color: #fff; font-weight: 700; opacity: 0; pointer-events: none; transition: .2s; z-index: 80; text-align: center; box-shadow: 0 10px 28px rgba(0, 0, 0, .3); }
#toast.show { opacity: 1; transform: translate(-50%, 0); }
#modal .backdrop { position: fixed; inset: 0; z-index: 90; display: grid; place-items: center; padding: 16px; background: rgba(14, 10, 40, .58); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); }
.dialog { width: min(100%, 440px); max-height: 90vh; overflow: auto; background: var(--card); border-radius: 22px; padding: 22px; box-shadow: 0 24px 60px rgba(0, 0, 0, .35); animation: rise .2s ease both; }
.dlg-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; margin-top: 14px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .spinner { animation: spin 3s linear infinite !important; }
}