:root {
  --sun: #ff8a3d;
  --sun-deep: #f2701f;
  --teal: #1fb6a6;
  --sky: #5bc8f5;
  --berry: #e8557f;
  --cream: #fff7e8;
  --ink: #3a2e25;
  --ink-soft: #7a6a5c;
  --card: #ffffff;
  --good: #2fae6a;
  --bad: #e0584f;
  --shadow: 0 10px 0 rgba(58, 46, 37, 0.08), 0 18px 40px rgba(58, 46, 37, 0.12);
  --radius: 22px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Nunito", sans-serif;
  color: var(--ink);
  background: var(--cream);
  min-height: 100vh;
  overflow-x: hidden;
}

.sky {
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(circle at 85% -5%, rgba(255, 200, 80, 0.55), transparent 42%),
    radial-gradient(circle at 10% 8%, rgba(91, 200, 245, 0.30), transparent 40%),
    linear-gradient(180deg, #fff8ec 0%, #fdeccf 100%);
}
.sky::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.7) 2px, transparent 2px);
  background-size: 46px 46px; opacity: 0.4;
}

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px clamp(16px, 4vw, 48px);
  max-width: 920px; margin: 0 auto;
}
.logo {
  font-family: "Baloo 2", cursive; font-weight: 800;
  font-size: clamp(20px, 3.5vw, 30px);
  color: var(--sun-deep); background: none; border: none; cursor: pointer;
  letter-spacing: 0.5px;
}
.ghost {
  font-family: "Nunito"; font-weight: 800; font-size: 15px;
  color: var(--ink-soft); background: #fff; border: 2px solid #f0dcbf;
  padding: 9px 16px; border-radius: 999px; cursor: pointer;
}
.ghost:hover { color: var(--ink); }

.app {
  max-width: 920px; margin: 0 auto;
  padding: 12px clamp(16px, 4vw, 48px) 80px;
  animation: pop 0.4s ease;
}
@keyframes pop { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

h1 { font-family: "Baloo 2"; font-weight: 800; font-size: clamp(28px, 6vw, 44px); margin: 14px 0 4px; }
.sub { color: var(--ink-soft); font-weight: 700; font-size: 17px; margin: 0 0 26px; }

/* ---- profile picker ---- */
.profiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 20px; }
.profile {
  background: var(--card); border: none; cursor: pointer;
  border-radius: var(--radius); padding: 30px 22px; text-align: center;
  box-shadow: var(--shadow); transition: transform 0.15s ease;
  border-top: 8px solid var(--accent, var(--sun));
}
.profile:hover { transform: translateY(-6px) rotate(-1deg); }
.profile .face { font-size: 64px; line-height: 1; }
.profile .pname { font-family: "Baloo 2"; font-weight: 700; font-size: 24px; margin-top: 10px; }
.profile .pgrade { color: var(--ink-soft); font-weight: 700; }

/* ---- subject cards / home ---- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 28px; }
.card {
  background: var(--card); border-radius: var(--radius); padding: 22px;
  box-shadow: var(--shadow); display: flex; align-items: center; gap: 14px;
}
.card .ic { font-size: 38px; }
.card .ct { font-family: "Baloo 2"; font-weight: 700; font-size: 20px; }
.card .cc { color: var(--ink-soft); font-weight: 700; font-size: 14px; }

/* ---- big buttons ---- */
.btn {
  font-family: "Baloo 2"; font-weight: 700; font-size: 20px;
  color: #fff; background: var(--sun); border: none; cursor: pointer;
  padding: 16px 30px; border-radius: 999px;
  box-shadow: 0 6px 0 var(--sun-deep); transition: transform 0.1s, box-shadow 0.1s;
}
.btn:active { transform: translateY(4px); box-shadow: 0 2px 0 var(--sun-deep); }
.btn.teal { background: var(--teal); box-shadow: 0 6px 0 #138b7e; }
.btn.big { font-size: 24px; padding: 18px 44px; }
.btn:disabled { opacity: 0.5; cursor: default; }

/* ---- quiz ---- */
.quiz { background: var(--card); border-radius: 28px; padding: clamp(20px, 4vw, 38px); box-shadow: var(--shadow); }
.progress { height: 14px; background: #f0e6d4; border-radius: 999px; overflow: hidden; margin-bottom: 6px; }
.progress > i { display: block; height: 100%; background: linear-gradient(90deg, var(--teal), var(--sky)); transition: width 0.3s; }
.qmeta { display: flex; justify-content: space-between; color: var(--ink-soft); font-weight: 800; font-size: 14px; margin-bottom: 18px; }
.tag { background: #fdeccf; color: var(--sun-deep); padding: 3px 12px; border-radius: 999px; }

.resource { display: inline-flex; gap: 8px; align-items: center; background: #eaf7ff; color: #1779a8;
  font-weight: 800; text-decoration: none; padding: 10px 16px; border-radius: 14px; margin-bottom: 16px; }
.resource:hover { background: #d8f0ff; }

.prompt { font-family: "Baloo 2"; font-weight: 700; font-size: clamp(24px, 5vw, 34px); margin: 6px 0 22px; line-height: 1.25; }

.choices { display: grid; gap: 12px; }
.choice {
  text-align: left; font-family: "Nunito"; font-weight: 800; font-size: 19px;
  background: #fff; border: 3px solid #efe2cc; color: var(--ink);
  padding: 16px 20px; border-radius: 16px; cursor: pointer; transition: 0.12s;
}
.choice:hover { border-color: var(--sky); }
.choice.sel { border-color: var(--teal); background: #effbf9; }
.choice.right { border-color: var(--good); background: #e9f9f0; }
.choice.wrong { border-color: var(--bad); background: #fdeceb; }

.numwrap { display: flex; gap: 12px; align-items: center; }
.numwrap input {
  font-family: "Baloo 2"; font-weight: 700; font-size: 30px; width: 200px;
  padding: 12px 18px; border: 3px solid #efe2cc; border-radius: 16px; color: var(--ink);
}
.numwrap input:focus { outline: none; border-color: var(--sky); }

.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-top: 24px; }
.hintbtn {
  width: 52px; height: 52px; border-radius: 50%; border: 3px solid #f0dcbf; background: #fff;
  font-size: 24px; cursor: pointer; color: var(--sun-deep); font-weight: 800;
}
.hintbtn:hover { background: #fff3e0; }
.hint { background: #fff7e6; border-left: 5px solid var(--sun); padding: 12px 16px; border-radius: 10px;
  font-weight: 700; margin-top: 16px; }
.feedback { font-family: "Baloo 2"; font-weight: 700; font-size: 22px; margin-top: 18px; }
.feedback.good { color: var(--good); }
.feedback.bad { color: var(--bad); }

/* ---- done ---- */
.done { text-align: center; background: var(--card); border-radius: 28px; padding: 46px 28px; box-shadow: var(--shadow); }
.done .big-emoji { font-size: 84px; }
.score-ring { font-family: "Baloo 2"; font-weight: 800; font-size: 60px; color: var(--teal); }
.points { font-family: "Baloo 2"; font-weight: 800; font-size: 26px; color: var(--sun-deep); }

/* ---- parent ---- */
.panel { background: var(--card); border-radius: 24px; padding: 28px; box-shadow: var(--shadow); max-width: 560px; }
.panel input[type=password], .panel input[type=date] {
  font-family: "Nunito"; font-weight: 700; font-size: 18px; padding: 12px 16px;
  border: 2px solid #e7d9c1; border-radius: 12px; width: 100%; margin: 8px 0 4px;
}
.err { color: var(--bad); font-weight: 800; margin-top: 8px; }

.kidcard { background: var(--card); border-radius: 22px; padding: 22px 24px; box-shadow: var(--shadow);
  margin-bottom: 18px; border-left: 8px solid var(--accent, var(--teal)); }
.kidhead { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.kidhead .nm { font-family: "Baloo 2"; font-weight: 700; font-size: 24px; }
.kidhead .acc { margin-left: auto; font-family: "Baloo 2"; font-weight: 800; font-size: 22px; }
table { width: 100%; border-collapse: collapse; margin-top: 10px; }
th, td { text-align: left; padding: 9px 8px; font-weight: 700; border-bottom: 1px solid #f1e7d6; }
th { color: var(--ink-soft); font-size: 13px; text-transform: uppercase; letter-spacing: 0.4px; }
td.n { font-variant-numeric: tabular-nums; }
.muted { color: var(--ink-soft); font-weight: 700; }

/* ---- streaks, points & rewards ---- */
.banner { background: linear-gradient(120deg, #fff3df, #fff); border: 2px solid #f2e2c6;
  border-radius: 20px; padding: 16px 18px; margin: 4px 0 18px; box-shadow: var(--shadow); }
.badges { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.badge { font-family: "Baloo 2"; font-weight: 700; font-size: 17px; padding: 7px 15px; border-radius: 999px; }
.badge.streak { background: #ffe7d6; color: var(--sun-deep); }
.badge.coins { background: #fff2c2; color: #a6791a; }
.reward-row { display: flex; justify-content: space-between; font-weight: 800; color: var(--ink-soft);
  font-size: 14px; margin-bottom: 6px; }
.progress.small { height: 12px; }
.progress.small > i { background: linear-gradient(90deg, var(--sun), var(--berry)); }

.streak-line { font-family: "Baloo 2"; font-weight: 700; font-size: 22px; color: var(--sun-deep); margin: 10px 0; }
.done-reward { max-width: 360px; margin: 16px auto 0; text-align: left; }

.chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0; }
.chip { background: #f3ece0; color: var(--ink); font-weight: 800; font-size: 13px;
  padding: 5px 12px; border-radius: 999px; }

/* ---- parent tabs & tools ---- */
.ptabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.ptab { font-family: "Baloo 2"; font-weight: 700; font-size: 16px; background: #fff; color: var(--ink-soft);
  border: 2px solid #f0dcbf; padding: 9px 16px; border-radius: 999px; cursor: pointer; }
.ptab.on { background: var(--teal); color: #fff; border-color: var(--teal); }
.ptab:hover:not(.on) { color: var(--ink); }
.dateline { display: inline-block; font-weight: 800; color: var(--ink-soft); margin-bottom: 14px; }
.dateline input { font-family: "Nunito"; font-weight: 700; font-size: 16px; padding: 8px 12px;
  border: 2px solid #e7d9c1; border-radius: 10px; margin-left: 8px; }
.danger { color: var(--bad); border-color: #f3c9c5; }
.danger:hover { background: #fdeceb; }

/* week grid */
.weeknav { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px;
  font-family: "Baloo 2"; font-size: 18px; }
.wgrid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-top: 12px; }
.wcell { border-radius: 12px; padding: 8px 4px; text-align: center; background: #f6efe2; min-height: 64px; }
.wcell.hi { background: #e9f9f0; }
.wcell.lo { background: #fdeecc; }
.wcell.empty { background: #f3ece0; opacity: 0.7; }
.wd { font-weight: 800; font-size: 11px; color: var(--ink-soft); }
.wscore { font-family: "Baloo 2"; font-weight: 700; font-size: 17px; margin-top: 4px; }
.wpts { font-size: 11px; color: var(--sun-deep); font-weight: 800; }
.wdash { font-size: 20px; color: #c9b89c; margin-top: 8px; }

/* books manager */
.books { margin-bottom: 18px; }
.bookrow { background: var(--card); border-radius: 16px; box-shadow: var(--shadow); padding: 14px 18px;
  margin-bottom: 10px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.addbook h3 { font-family: "Baloo 2"; margin: 0 0 12px; font-size: 20px; }
.formgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.formgrid label, .addbook > label { display: block; font-weight: 800; color: var(--ink-soft); font-size: 14px; }
.addbook > label { margin-bottom: 12px; }
.formgrid input, .formgrid select, .addbook input {
  width: 100%; font-family: "Nunito"; font-weight: 700; font-size: 16px;
  padding: 10px 12px; border: 2px solid #e7d9c1; border-radius: 10px; margin-top: 4px; }
@media (max-width: 520px) { .formgrid { grid-template-columns: 1fr; } .wd { font-size: 10px; } .wscore { font-size: 14px; } }
.chapchip { background: #eaf3ff; color: #1779a8; font-weight: 800; font-size: 12px;
  padding: 3px 9px; border-radius: 999px; margin-right: 6px; white-space: nowrap; }

/* ---- hub: clickable subject cards ---- */
.hubcards .card { width: 100%; cursor: pointer; border: 3px solid transparent; font-family: inherit;
  text-align: left; transition: transform .12s, border-color .12s; }
.hubcards .card.go:hover { transform: translateY(-3px); border-color: var(--sky); }
.hubcards .card.done { opacity: .72; cursor: default; background: #eef7ef; }
.cardtext .tick { color: var(--good); font-weight: 800; }
.hubcards .card .cc { color: var(--ink-soft); font-weight: 700; font-size: 14px; }

/* ---- prominent reading card ---- */
.readcard { display: flex; gap: 16px; align-items: center; background: linear-gradient(120deg,#fff3df,#ffffff);
  border: 3px solid var(--sun); border-radius: 22px; padding: 18px 20px; margin: 4px 0 18px; box-shadow: var(--shadow); }
.rc-icon { font-size: 46px; line-height: 1; }
.rc-icon.big { font-size: 70px; text-align: center; }
.rc-label { font-weight: 800; color: var(--sun-deep); font-size: 13px; text-transform: uppercase; letter-spacing: .5px; }
.rc-title { font-family: "Baloo 2"; font-weight: 800; font-size: 24px; line-height: 1.1; margin-top: 2px; }
.rc-author { color: var(--ink-soft); font-weight: 700; }
.rc-ch { margin-top: 6px; font-weight: 800; color: var(--ink); }

/* ---- section intro / learn-first ---- */
.intro { text-align: center; background: var(--card); border-radius: 28px; padding: 36px 24px; box-shadow: var(--shadow); }
.row.center { justify-content: center; }
.learnlinks { display: flex; flex-direction: column; gap: 12px; max-width: 420px; margin: 18px auto; }
.learnlink { display: block; background: #eaf7ff; color: #1779a8; font-weight: 800; text-decoration: none;
  padding: 16px 20px; border-radius: 16px; border: 2px solid #cfecfb; font-size: 18px; }
.learnlink:hover { background: #d8f0ff; }

/* ---- JSON import control ---- */
.addbook input[type="file"] { font-family: "Nunito"; font-weight: 700; font-size: 14px;
  padding: 10px; border: 2px dashed #cdb98f; border-radius: 12px; width: 100%; background: #fffaf0; cursor: pointer; }