/* ==========================================================================
   مَدار — صفحات: الواجهة، المسارات، الدرس، الاختبار، لوحة التقدّم
   ========================================================================== */

/* ---------- الواجهة ---------- */
.hero { padding-block: clamp(2.6rem, 6vw, 4.6rem) clamp(2rem, 4vw, 3rem); }
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: clamp(1.6rem, 4vw, 3.2rem);
  align-items: center;
}
.hero h1 { margin-top: 1.1rem; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--primary), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__lead {
  margin-top: 1.1rem;
  font-size: clamp(.98rem, 1.3vw, 1.08rem);
  color: var(--text-2);
  max-width: 54ch;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.7rem; }
.hero__note {
  display: flex; align-items: center; gap: .4rem;
  margin-top: 1.1rem; font-size: .82rem; color: var(--text-muted);
}
.hero__note .ico { color: var(--success); }

/* بطاقة جانبية: متابعة التعلّم */
.hero__aside { position: relative; }
.hero__glow {
  position: absolute; inset: 8% -6% -8% 6%;
  background: radial-gradient(60% 60% at 50% 50%, color-mix(in srgb, var(--primary) 24%, transparent), transparent 70%);
  filter: blur(26px); z-index: -1;
}
.continue-card { padding: 1.25rem; box-shadow: var(--shadow-lg); border-radius: var(--r-lg); }
.continue-card__top { display: flex; align-items: center; gap: .7rem; margin-bottom: 1rem; }
.continue-card__top .ibadge { width: 40px; height: 40px; border-radius: 12px; }
.continue-card__top h4 { font-size: .95rem; }
.continue-card__top small { color: var(--text-muted); font-size: .76rem; }
.continue-card__title { font-family: var(--font-head); font-weight: 600; font-size: 1.05rem; margin-bottom: .2rem; }
.continue-card__meta { display: flex; gap: .7rem; color: var(--text-muted); font-size: .78rem; margin-bottom: .9rem; }
.continue-card__actions { display: flex; gap: .5rem; margin-top: 1.1rem; }
.continue-card__actions .btn { flex: 1; }

/* شريط الأرقام */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.stat { background: var(--surface); padding: 1.15rem 1.2rem; }
.stat b {
  display: block;
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 2.4vw, 1.75rem);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.stat span { font-size: .8rem; color: var(--text-muted); }
.stat__ico { display: inline-flex; color: var(--primary); margin-bottom: .35rem; }
.stat__ico .ico { width: 18px; height: 18px; }

/* ---------- شبكات ---------- */
.grid { display: grid; gap: 1.1rem; }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* بطاقة مسار */
.pathcard { display: flex; flex-direction: column; overflow: hidden; }
.pathcard__top {
  position: relative;
  padding: 1.25rem 1.25rem .95rem;
  background:
    radial-gradient(120% 90% at 100% 0%, color-mix(in srgb, var(--c, var(--primary)) 16%, transparent), transparent 62%),
    var(--surface);
  border-bottom: 1px solid var(--border);
}
.pathcard__top .row { justify-content: space-between; align-items: flex-start; }
.pathcard__top .card__icon { background: color-mix(in srgb, var(--c, var(--primary)) 14%, var(--surface)); color: var(--c, var(--primary)); }
.pathcard h3 { margin-top: .85rem; font-size: 1.12rem; }
.pathcard__desc { color: var(--text-muted); font-size: .89rem; margin-top: .35rem; min-height: 3.4em; }
.pathcard__body { padding: 1rem 1.25rem 1.2rem; display: flex; flex-direction: column; gap: .85rem; flex: 1; }
.pathcard__foot { display: flex; align-items: center; justify-content: space-between; gap: .8rem; margin-top: auto; }

.lessoncount {
  display: inline-flex; align-items: center; gap: .3rem;
  font-size: .78rem; color: var(--text-muted);
}
.lessoncount .ico { width: .95em; height: .95em; }

/* شريط تقدّم المسار داخل البطاقة */
.pathcard .progress-row b { font-size: .74rem; }

/* ---------- صفحة كل المسارات ---------- */
.pagehead { padding-block: clamp(1.8rem, 4vw, 2.8rem) 1.2rem; }
.pagehead h1 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); }
.pagehead p { color: var(--text-muted); margin-top: .5rem; max-width: 60ch; }

.filters { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1.4rem; }
.chip {
  padding: .38rem .85rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: .84rem;
  font-weight: 500;
  color: var(--text-2);
  transition: all .18s var(--ease);
}
.chip:hover { border-color: var(--border-strong); }
.chip.is-active { background: var(--text); color: var(--bg); border-color: var(--text); font-weight: 600; }

/* ---------- صفحة المسار ---------- */
.crumbs {
  display: flex; align-items: center; flex-wrap: wrap; gap: .35rem;
  font-size: .8rem; color: var(--text-muted);
  padding-top: 1.4rem;
}
.crumbs a:hover { color: var(--primary); }
.crumbs .ico { width: .9em; height: .9em; opacity: .6; }

.pathhero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 1.6rem;
  align-items: start;
  padding-block: 1.4rem 1.2rem;
}
.pathhero h1 { font-size: clamp(1.7rem, 3.4vw, 2.45rem); margin-top: .8rem; }
.pathhero__desc { color: var(--text-2); margin-top: .7rem; max-width: 58ch; }
.pathhero__tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 1rem; }

.pathhero__side { padding: 1.2rem; }
.pathhero__side .ring { --size: 76px; }
.pathhero__side .ring b { font-size: .95rem; }
.pathhero__side-row { display: flex; align-items: center; gap: .9rem; }
.pathhero__side small { display: block; color: var(--text-muted); font-size: .78rem; }
.pathhero__side strong { font-family: var(--font-head); font-size: 1rem; }
.pathhero__side .btn { margin-top: 1rem; }
.pathhero__side dl { display: flex; gap: 1.4rem; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.pathhero__side dt { font-size: .74rem; color: var(--text-muted); }
.pathhero__side dd { font-family: var(--font-head); font-weight: 600; font-size: .92rem; }

/* قائمة دروس المسار */
.lessonlist { display: flex; flex-direction: column; gap: .5rem; margin-top: 1.3rem; }
.lessonrow {
  display: flex; align-items: center; gap: .9rem;
  padding: .85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: border-color .2s, transform .2s var(--ease), box-shadow .2s;
}
.lessonrow:hover { border-color: color-mix(in srgb, var(--primary) 34%, var(--border)); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.lessonrow__n {
  display: grid; place-items: center;
  width: 30px; height: 30px; flex: none;
  border-radius: 9px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-family: var(--font-head); font-size: .78rem; font-weight: 600;
  color: var(--text-muted);
}
.lessonrow.is-done .lessonrow__n { background: var(--success-soft); border-color: transparent; color: var(--success); }
.lessonrow__main { flex: 1; min-width: 0; }
.lessonrow__main strong { display: block; font-size: .95rem; font-weight: 600; }
.lessonrow__main small { color: var(--text-muted); font-size: .78rem; }
.lessonrow__end { display: flex; align-items: center; gap: .7rem; flex: none; }
.lessonrow__end .meta { font-size: .76rem; }

/* ---------- صفحة الدرس ---------- */
.lesson-layout {
  display: grid;
  grid-template-columns: 272px minmax(0, 1fr);
  gap: clamp(1.2rem, 3vw, 2.4rem);
  align-items: start;
  padding-block: 1.3rem 2rem;
}
.lesson-side {
  position: sticky;
  top: calc(var(--nav-h) + 1.2rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
}
.lesson-side__head { display: flex; align-items: center; gap: .6rem; padding-bottom: .8rem; border-bottom: 1px solid var(--border); }
.lesson-side__head strong { font-size: .9rem; font-family: var(--font-head); }
.lesson-side__head small { display: block; color: var(--text-muted); font-size: .72rem; }
.lesson-side__list { display: flex; flex-direction: column; gap: 2px; margin-top: .7rem; max-height: 58vh; overflow-y: auto; }
.lesson-side__list a {
  display: flex; align-items: center; gap: .55rem;
  padding: .5rem .55rem;
  border-radius: 9px;
  font-size: .855rem;
  color: var(--text-2);
  transition: background .15s, color .15s;
}
.lesson-side__list a:hover { background: var(--surface-2); color: var(--text); }
.lesson-side__list a.is-active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.lesson-side__list a .ico { width: 15px; height: 15px; opacity: .75; }
.lesson-side__list a.done .ico { color: var(--success); opacity: 1; }
.lesson-side__list a span { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* جسم الدرس */
.lesson-main { min-width: 0; }
.lesson-head { padding-bottom: 1.2rem; border-bottom: 1px solid var(--border); margin-bottom: 1.4rem; }
.lesson-head h1 { font-size: clamp(1.55rem, 3vw, 2.15rem); margin-top: .6rem; }
.lesson-head .meta { margin-top: .7rem; flex-wrap: wrap; }

.prose { font-size: 1rem; color: var(--text-2); line-height: 1.9; }
.prose > * + * { margin-top: 1.05rem; }
.prose h2 { font-size: 1.3rem; color: var(--text); margin-top: 2rem; }
.prose h3 { font-size: 1.06rem; color: var(--text); margin-top: 1.5rem; }
.prose strong { color: var(--text); font-weight: 600; }
.prose a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.prose ul, .prose ol { display: flex; flex-direction: column; gap: .45rem; }
.prose ul li { position: relative; padding-inline-start: 1.15rem; }
.prose ul li::before {
  content: ""; position: absolute; inset-inline-start: .1rem; top: .72em;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary); opacity: .55;
}
.prose ol { counter-reset: li; }
.prose ol li { position: relative; padding-inline-start: 1.5rem; counter-increment: li; }
.prose ol li::before {
  content: counter(li);
  position: absolute; inset-inline-start: 0; top: .15em;
  font-family: var(--font-head); font-size: .78rem; font-weight: 600;
  color: var(--primary);
}
.prose :not(pre) > code {
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .05em .38em;
  font-size: .88em;
  color: var(--text);
  direction: ltr;
  display: inline-block;
}

/* كتلة كود */
.codeblock {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--surface-2);
  direction: ltr;
  text-align: left;
}
.codeblock__head {
  display: flex; align-items: center; justify-content: space-between;
  padding: .4rem .5rem .4rem .8rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.codeblock__head span {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.codeblock__copy {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .2rem .5rem;
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: .72rem;
  color: var(--text-muted);
  transition: background .15s, color .15s;
}
.codeblock__copy:hover { background: var(--surface-2); color: var(--text); }
.codeblock__copy .ico { width: 13px; height: 13px; }
.codeblock pre {
  margin: 0; padding: .9rem 1rem;
  overflow-x: auto;
  font-size: .82rem;
  line-height: 1.75;
  color: var(--text);
  font-family: var(--font-mono);
  tab-size: 2;
}

/* ملاحظة داخل الدرس */
.note {
  display: flex; gap: .75rem;
  padding: .9rem 1rem;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: .9rem;
  line-height: 1.75;
}
.note .ico { width: 18px; height: 18px; margin-top: 3px; flex: none; color: var(--primary); }
.note strong { display: block; font-size: .82rem; color: var(--text); margin-bottom: .15rem; }
.note--tip { background: var(--success-soft); border-color: transparent; }
.note--tip .ico { color: var(--success); }
.note--warn { background: var(--accent-soft); border-color: transparent; }
.note--warn .ico { color: color-mix(in srgb, var(--accent) 75%, var(--text)); }

/* جدول مقارنة */
.prose .table-wrap { border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden; }
.prose table { width: 100%; border-collapse: collapse; font-size: .88rem; background: var(--surface); }
.prose th, .prose td { padding: .6rem .85rem; text-align: start; border-bottom: 1px solid var(--border); }
.prose th { background: var(--surface-2); font-family: var(--font-head); font-size: .8rem; font-weight: 600; color: var(--text); }
.prose tr:last-child td { border-bottom: 0; }

/* ذيل الدرس */
.lesson-note-done {
  display: flex; align-items: center; gap: .8rem;
  margin-top: 1.8rem; padding: 1rem 1.15rem;
  border-radius: var(--r-md);
  background: var(--success-soft);
  color: var(--success);
  font-size: .89rem; font-weight: 600;
}
.lesson-note-done .ico { width: 20px; height: 20px; }
.lesson-actions {
  display: flex; flex-wrap: wrap; align-items: center; gap: .6rem;
  margin-top: 1.8rem; padding-top: 1.4rem;
  border-top: 1px solid var(--border);
}
.lesson-actions .spacer { flex: 1; }
.lesson-nav { display: flex; gap: .6rem; margin-top: 1.2rem; }
.lesson-nav a { flex: 1; padding: .8rem 1rem; border-radius: var(--r-md); border: 1px solid var(--border); background: var(--surface); transition: border-color .2s, transform .2s; }
.lesson-nav a:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.lesson-nav small { display: block; font-size: .72rem; color: var(--text-muted); }
.lesson-nav strong { font-size: .9rem; font-family: var(--font-head); }
.lesson-nav a.next { text-align: end; }

/* ---------- الاختبار ---------- */
.quiz-wrap { max-width: 760px; margin-inline: auto; padding-block: 2rem 3rem; }
.quiz-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.4rem; }
.quiz-head h1 { font-size: clamp(1.4rem, 2.6vw, 1.85rem); }
.quiz-head small { color: var(--text-muted); font-size: .82rem; }

.qcard { padding: 1.4rem; animation: fadeUp .35s var(--ease-out) both; }
.qcard__n {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .74rem; font-weight: 600; color: var(--primary);
  background: var(--primary-soft);
  padding: .22rem .6rem; border-radius: var(--r-pill);
}
.qcard h2 { font-size: 1.12rem; margin-top: .8rem; line-height: 1.6; }
.qopts { display: flex; flex-direction: column; gap: .55rem; margin-top: 1.15rem; }
.qopt {
  display: flex; align-items: center; gap: .75rem;
  width: 100%; text-align: start;
  padding: .8rem .9rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
  font-size: .93rem;
  color: var(--text-2);
  transition: border-color .18s, background .18s, transform .18s var(--ease);
}
.qopt:hover:not(:disabled) { border-color: var(--primary); background: var(--primary-soft); transform: translateY(-1px); }
.qopt__k {
  display: grid; place-items: center;
  width: 26px; height: 26px; flex: none;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-family: var(--font-head); font-size: .76rem; font-weight: 600;
  color: var(--text-muted);
}
.qopt__t { flex: 1; }
.qopt__i { width: 18px; height: 18px; opacity: 0; transition: opacity .2s; flex: none; }
.qopt.is-correct { border-color: var(--success); background: var(--success-soft); color: var(--success); font-weight: 600; }
.qopt.is-correct .qopt__k { background: var(--success); border-color: transparent; color: #fff; }
.qopt.is-correct .qopt__i { opacity: 1; color: var(--success); }
.qopt.is-wrong { border-color: var(--danger); background: var(--danger-soft); color: var(--danger); font-weight: 600; }
.qopt.is-wrong .qopt__k { background: var(--danger); border-color: transparent; color: #fff; }
.qopt.is-wrong .qopt__i { opacity: 1; color: var(--danger); }
.qopt:disabled { cursor: default; }
.qopt.is-muted { opacity: .55; }

.qwhy {
  display: flex; gap: .6rem;
  margin-top: 1rem; padding: .8rem .95rem;
  border-radius: var(--r-sm);
  background: var(--surface-2);
  font-size: .87rem; color: var(--text-2);
  animation: fadeUp .3s var(--ease-out) both;
}
.qwhy .ico { width: 17px; height: 17px; color: var(--primary); margin-top: 2px; flex: none; }

.quiz-foot { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 1.2rem; }
.quiz-dots { display: flex; gap: .3rem; }
.quiz-dots i { width: 26px; height: 4px; border-radius: 99px; background: var(--surface-3); }
.quiz-dots i.ok { background: var(--success); }
.quiz-dots i.no { background: var(--danger); }
.quiz-dots i.now { background: var(--primary); }

.quiz-result { padding: 2rem 1.6rem; text-align: center; }
.quiz-result .ring { --size: 108px; margin-inline: auto; }
.quiz-result .ring b { font-size: 1.3rem; }
.quiz-result h2 { margin-top: 1.1rem; }
.quiz-result p { color: var(--text-muted); margin-top: .4rem; }
.quiz-result__actions { display: flex; gap: .6rem; justify-content: center; flex-wrap: wrap; margin-top: 1.4rem; }

/* ---------- لوحة التقدّم ---------- */
.dash-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1rem; padding-block: 1.8rem .6rem; }
.dash-head h1 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); }
.dash-head p { color: var(--text-muted); font-size: .92rem; margin-top: .3rem; }

.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: .9rem; margin-top: 1.4rem; }
.kpi { padding: 1.1rem 1.15rem; }
.kpi__top { display: flex; align-items: center; justify-content: space-between; gap: .5rem; }
.kpi__label { font-size: .78rem; color: var(--text-muted); }
.kpi b { display: block; font-family: var(--font-head); font-size: clamp(1.35rem, 2.3vw, 1.65rem); line-height: 1.3; margin-top: .35rem; font-variant-numeric: tabular-nums; }
.kpi small { font-size: .74rem; color: var(--text-muted); }

.dash-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 1.1rem; margin-top: 1.1rem; align-items: start; }
.dash-card { padding: 1.2rem 1.25rem; }
.dash-card__head { display: flex; align-items: center; justify-content: space-between; gap: .8rem; margin-bottom: 1rem; }
.dash-card__head h2 { font-size: 1.02rem; }

.pathline { display: flex; align-items: center; gap: .85rem; padding: .7rem 0; border-bottom: 1px solid var(--border); }
.pathline:last-child { border-bottom: 0; padding-bottom: 0; }
.pathline__main { flex: 1; min-width: 0; }
.pathline__main strong { display: block; font-size: .9rem; font-weight: 600; }
.pathline__main small { color: var(--text-muted); font-size: .76rem; }
.pathline__main .progress { margin-top: .4rem; }

/* رسم أعمدة النشاط */
.bars { display: flex; align-items: flex-end; gap: .5rem; height: 118px; padding-top: .4rem; }
.bars div { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: .4rem; height: 100%; }
.bars i {
  display: block; width: 100%; max-width: 26px;
  border-radius: 5px 5px 3px 3px;
  background: linear-gradient(180deg, var(--primary), color-mix(in srgb, var(--primary) 55%, var(--violet)));
  min-height: 4px;
  transition: height .5s var(--ease-out);
}
.bars i.is-zero { background: var(--surface-3); }
.bars span { font-size: .68rem; color: var(--text-muted); }

.activity { display: flex; flex-direction: column; gap: .55rem; }
.activity__row { display: flex; align-items: center; gap: .65rem; font-size: .86rem; }
.activity__row .ico { width: 15px; height: 15px; color: var(--success); }
.activity__row div { flex: 1; min-width: 0; }
.activity__row strong { font-weight: 600; }
.activity__row small { display: block; color: var(--text-muted); font-size: .74rem; }

/* حالة فراغ */
.empty { text-align: center; padding: 3rem 1.2rem; }
.empty__ico { display: grid; place-items: center; width: 54px; height: 54px; margin: 0 auto 1rem; border-radius: 16px; background: var(--surface-2); color: var(--text-muted); }
.empty__ico .ico { width: 24px; height: 24px; }
.empty h3 { font-size: 1.05rem; }
.empty p { color: var(--text-muted); font-size: .89rem; margin-top: .35rem; }
.empty .btn { margin-top: 1.2rem; }

/* ---------- استجابة الصفحات ---------- */
@media (max-width: 1080px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .dash-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__aside { order: 2; }
  .pathhero { grid-template-columns: 1fr; }
  .lesson-layout { grid-template-columns: 1fr; }
  .lesson-side { position: static; order: 2; }
  .lesson-side__list { max-height: none; }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid--3, .grid--2, .grid--4 { grid-template-columns: 1fr; }
  .kpis { grid-template-columns: 1fr 1fr; }
  .hero__actions .btn { flex: 1; }
  .lessonrow { flex-wrap: wrap; }
  .lessonrow__end { width: 100%; justify-content: space-between; padding-inline-start: 2.4rem; }
  .quiz-head { flex-direction: column; align-items: flex-start; }
  .quiz-foot { flex-direction: column-reverse; align-items: stretch; }
  .quiz-result__actions .btn { flex: 1; }
  .dash-head { flex-direction: column; align-items: flex-start; }
}