:root {
  --paper: #f7f3ec;
  --card: #ffffff;
  --ink: #1f2430;
  --ink-soft: #5d6578;
  --line: #e2dbd0;
  --accent: #0f766e;
  --accent-soft: #d7efec;
  --right: #157f4a;
  --right-soft: #dcf3e6;
  --wrong: #b3261e;
  --wrong-soft: #fae3e1;
  --shadow: 0 1px 2px rgba(31, 36, 48, .06), 0 12px 32px -18px rgba(31, 36, 48, .35);
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #15181f;
    --card: #1d212b;
    --ink: #eef1f6;
    --ink-soft: #9ba4b7;
    --line: #2e3442;
    --accent: #5eead4;
    --accent-soft: #1b3b39;
    --right: #6ee7a8;
    --right-soft: #16331f;
    --wrong: #fca5a0;
    --wrong-soft: #3a1c1b;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 16px 40px -20px rgba(0, 0, 0, .8);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 2rem 1.25rem 3rem;
  background: var(--paper);
  color: var(--ink);
  font-family: "Heebo", -apple-system, "Arial Hebrew", "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app { max-width: 42rem; margin: 0 auto; }

/* ---------- כותרת וסטטיסטיקה ---------- */
.brand {
  font-family: "Frank Ruhl Libre", "Heebo", serif;
  font-size: 1.45rem;
  font-weight: 700;
  margin: 0 0 1rem;
  letter-spacing: -.01em;
}
.brand span { color: var(--accent); font-weight: 500; }

.stats {
  display: flex;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
}
.stats dt {
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--ink-soft);
  text-transform: none;
}
.stats dd {
  margin: .1rem 0 0;
  font-size: 1.3rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.mastery-bar {
  margin: .85rem 0 1.5rem;
  height: 5px;
  border-radius: 99px;
  background: var(--line);
  overflow: hidden;
}
.mastery-bar span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width .45s cubic-bezier(.2, .7, .3, 1);
}

/* ---------- כרטיס השאלה ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.6rem 1.5rem 1.4rem;
}

.kicker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 .6rem;
  font-size: .78rem;
  color: var(--ink-soft);
}

.pips { display: inline-flex; gap: 4px; }
.pips i {
  width: 6px; height: 6px; border-radius: 99px;
  background: var(--line);
  display: block;
}
.pips i.on { background: var(--accent); }

/* לוח המסלולים: היכן התלמיד נמצא בכל מסלול, וכמה נותר עד הפרק הבא. */
.tracks { margin: .85rem 0 0; display: grid; gap: .5rem; }
.track-head {
  display: flex;
  align-items: baseline;
  gap: .45rem;
  flex-wrap: wrap;
  font-size: .85rem;
  color: var(--ink-soft);
}
.track-head b { color: var(--ink); font-weight: 600; }
.track-section { color: var(--ink); }
.track-head .tag { font-weight: 500; font-size: .8rem; opacity: .75; }
.track-count { margin-inline-start: auto; font-variant-numeric: tabular-nums; }
.track-bar {
  margin-top: .28rem;
  height: 4px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
}
.track-bar span {
  display: block;
  height: 100%;
  background: var(--accent);
  transition: width .3s ease;
}

.kicker-section { color: var(--ink-soft); }

.actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.refresh {
  font: inherit;
  padding: .45rem .9rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
}
.refresh:hover:not(:disabled) { color: var(--ink); border-color: var(--ink-soft); }
.refresh:disabled { opacity: .55; cursor: default; }
.appver { margin: .5rem 0 0; font-size: .85rem; color: var(--ink-soft); }

/* הודעת פתיחת פרק: מופיעה אחרי תשובה, ולכן בולטת יותר מההסבר. */
.unlocked {
  margin: .7rem 0 0;
  padding: .6rem .8rem;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--ink);
  font-weight: 600;
}

.prompt {
  font-family: "Frank Ruhl Libre", "Heebo", serif;
  font-size: 1.75rem;
  font-weight: 500;
  line-height: 1.35;
  margin: 0;
}

.gloss { margin: .55rem 0 0; color: var(--ink-soft); }

/* הערת הגייה: נלווית לשאלה, ולכן שקטה יותר מהמשמעות. */
.say { margin: .3rem 0 0; color: var(--ink-soft); font-size: .9rem; opacity: .85; }

.lat {
  direction: ltr;
  unicode-bidi: isolate;
  font-weight: 700;
  letter-spacing: .01em;
}
.note .lat { color: var(--accent); }
.note {
  margin: .7rem 0 0;
  padding: .55rem .75rem;
  border-inline-start: 3px solid var(--accent);
  background: var(--accent-soft);
  color: var(--ink);
  border-radius: 8px;
  border-start-start-radius: 0;
  border-end-start-radius: 0;
  font-size: .92rem;
}

/* ---------- תשובות ---------- */
.options {
  display: grid;
  gap: .55rem;
  margin: 1.25rem 0 0;
}
.option {
  display: flex;
  align-items: center;
  gap: .75rem;
  width: 100%;
  text-align: start;
  font: inherit;
  font-size: 1.12rem;
  color: inherit;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: .7rem .85rem;
  cursor: pointer;
  transition: border-color .12s, background .12s, transform .12s;
}
.option:hover:not(:disabled) { border-color: var(--accent); transform: translateX(-2px); }
.option:disabled { cursor: default; }
.option .num {
  flex: 0 0 1.45rem;
  height: 1.45rem;
  display: grid;
  place-items: center;
  border-radius: 7px;
  background: var(--paper);
  border: 1px solid var(--line);
  font-size: .78rem;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}
.option .txt { flex: 1; }
.option[data-dir="ltr"] .txt { direction: ltr; text-align: left; unicode-bidi: isolate; }

.option.is-right { border-color: var(--right); background: var(--right-soft); }
.option.is-right .num { border-color: var(--right); color: var(--right); }
.option.is-wrong { border-color: var(--wrong); background: var(--wrong-soft); }
.option.is-wrong .num { border-color: var(--wrong); color: var(--wrong); }
.option.is-dim { opacity: .5; }

.pattern {
  direction: ltr;
  text-align: left;
  margin: .7rem 0 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--accent);
}

.feedback { margin: 1rem 0 0; font-weight: 500; }
.feedback.ok { color: var(--right); }
.feedback.no { color: var(--wrong); }
.feedback b { font-weight: 700; }

.next {
  margin: 1.1rem 0 0;
  font: inherit;
  font-weight: 500;
  background: var(--accent);
  color: var(--paper);
  border: 0;
  border-radius: 10px;
  padding: .6rem 1.1rem;
  cursor: pointer;
}
@media (prefers-color-scheme: dark) { .next { color: #10211f; } }
.next:hover { filter: brightness(1.07); }

/* ---------- בקרות ---------- */
.controls { margin-top: 1.5rem; }
.modes {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .6rem .9rem .85rem;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem 1.25rem;
}
.modes legend { font-size: .75rem; color: var(--ink-soft); padding: 0 .3rem; }
.modes label { display: inline-flex; align-items: center; gap: .4rem; font-size: .95rem; }
.modes input { accent-color: var(--accent); width: 1rem; height: 1rem; }

.reset {
  margin-top: .9rem;
  font: inherit;
  font-size: .88rem;
  color: var(--ink-soft);
  background: none;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: .4rem .8rem;
  cursor: pointer;
}
.reset:hover { color: var(--wrong); border-color: var(--wrong); }

.tip { font-size: .82rem; color: var(--ink-soft); margin: .9rem 0 0; }
kbd {
  font: inherit;
  font-size: .78em;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 0 .3em;
  background: var(--card);
}

.empty { color: var(--ink-soft); }

@media (max-width: 30rem) {
  .prompt { font-size: 1.45rem; }
  .stats { gap: 1.1rem; }
  .stats dd { font-size: 1.1rem; }
}