/* =====================================================================
   صفحة الدورة — "لوحة تنفيذية"
   هيرو غامق بالنص، وجدول عنوان (كرت الشراء) بيطلع فوق الهيرو وبيلحقك
   مع السكرول، وعالموبايل شريط شراء عائم. الكلاسات بتبلش بـ cd-
   (البيانات والحركة: assets/js/course-page.js)
   ===================================================================== */

.cd {
  --cd-aside: 24rem;
  --cd-gap: clamp(2.5rem, 5vw, 5rem);
}

/* ---------- الهيرو ---------- */
.cd-hero {
  position: relative;
  z-index: 1;
  overflow: hidden;
  isolation: isolate;
  color: #fff;
  background-color: var(--dh-ink);
  background-image: radial-gradient(60% 70% at 85% 10%, rgba(217, 169, 63, 0.1), transparent 65%);
}
.cd-hero__grid,
.cd-hero__glow {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(var(--c) 1px, transparent 1px),
    linear-gradient(90deg, var(--c) 1px, transparent 1px),
    linear-gradient(var(--c2) 1px, transparent 1px),
    linear-gradient(90deg, var(--c2) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px, 16px 16px, 16px 16px;
  background-position: center top;
}
.cd-hero__grid { --c: rgba(217, 235, 235, 0.06); --c2: rgba(217, 235, 235, 0.025); }
.cd-hero__glow {
  --c: rgba(242, 210, 127, 0.4);
  --c2: rgba(242, 210, 127, 0.14);
  opacity: 0;
  transition: opacity 0.5s ease;
  -webkit-mask-image: radial-gradient(circle 220px at var(--mx, 50%) var(--my, 50%), #000, transparent 75%);
  mask-image: radial-gradient(circle 220px at var(--mx, 50%) var(--my, 50%), #000, transparent 75%);
}
.cd-hero.is-lit .cd-hero__glow { opacity: 1; }

.cd-hero__text {
  padding-top: clamp(7rem, 15vw, 9rem);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}
@media (min-width: 1024px) {
  .cd-hero__text {
    max-width: calc(100% - var(--cd-aside) - var(--cd-gap));
    min-height: 33rem;
    padding-bottom: 4rem;
  }
}

/* مسار الصفحة */
.cd-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(217, 235, 235, 0.6);
}
.cd-crumbs a { transition: color 0.3s ease; }
.cd-crumbs a:hover { color: var(--dh-gold-light); }
.cd-crumbs a:focus-visible { outline: 2px solid var(--dh-gold); outline-offset: 3px; }
.cd-crumbs span { opacity: 0.45; }

.cd-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.5rem;
}
.cd-tags .cs-new { position: static; }

.cd-title {
  margin-top: 1.2rem;
  font-size: clamp(2.2rem, 1.2rem + 3.6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.015em;
  unicode-bidi: plaintext;
  text-align: right;
}
.cd-by {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.1rem;
  font-size: 1rem;
  font-weight: 600;
  color: rgba(217, 235, 235, 0.7);
}
.cd-by svg { width: 1.1rem; height: 1.1rem; color: var(--dh-gold); }
.cd-by b { color: var(--dh-gold-light); font-weight: 700; }
.cd-lead {
  margin-top: 1.2rem;
  max-width: 40rem;
  font-size: clamp(1.02rem, 0.95rem + 0.35vw, 1.2rem);
  line-height: 1.9;
  color: rgba(217, 235, 235, 0.78);
}

/* حقائق بشكل جدول لوحة */
.cd-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 2rem;
  max-width: 40rem;
  border: 1px solid rgba(217, 235, 235, 0.16);
}
.cd-facts > div {
  display: flex;
  flex-direction: column-reverse;
  justify-content: flex-end;
  gap: 0.25rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(217, 235, 235, 0.16);
}
.cd-facts > div:nth-child(odd) { border-inline-end: 1px solid rgba(217, 235, 235, 0.16); }
.cd-facts > div:nth-last-child(-n + 2) { border-bottom: 0; }
.cd-facts dt { font-size: 0.78rem; font-weight: 600; color: rgba(217, 235, 235, 0.58); }
.cd-facts dd { font-size: 1.05rem; font-weight: 700; color: #fff; white-space: nowrap; }
.cd-facts dd.m { font-family: var(--dh-mono); font-weight: 500; color: var(--dh-gold-light); }
@media (min-width: 640px) {
  .cd-facts { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .cd-facts > div { border-bottom: 0; border-inline-end: 1px solid rgba(217, 235, 235, 0.16); }
  .cd-facts > div:last-child { border-inline-end: 0; }
}

/* دخول الهيرو بعد ما توصل البيانات (قبلها بيبيّن هيكل التحميل) */
.cd.is-ready .cd-up { animation: cd-rise 0.9s var(--dh-ease) both; animation-delay: calc(var(--i, 0) * 90ms); }
.cd.is-ready .cd-title .ds-mask > span { transform: none; }

/* هيكل التحميل */
.cd-skel {
  display: block;
  height: 0.9em;
  margin-block: 0.35em;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(217, 235, 235, 0.08) 0 30%, rgba(217, 235, 235, 0.16) 50%, rgba(217, 235, 235, 0.08) 70%) 0 0 / 300% 100%;
  animation: cd-shimmer 1.6s linear infinite;
}

/* ---------- الجسم: محتوى + جدول العنوان ---------- */
.cd-body {
  position: relative;
  z-index: 2;
}
.cd-layout {
  display: grid;
  gap: 3rem;
  padding-block: 2.5rem clamp(4rem, 8vw, 6rem);
}
@media (min-width: 1024px) {
  .cd-layout {
    grid-template-columns: minmax(0, 1fr) var(--cd-aside);
    gap: var(--cd-gap);
    padding-top: 4rem;
  }
}

/* ---------- كرت الشراء = جدول عنوان اللوحة ---------- */
.cd-aside { order: -1; }
@media (min-width: 1024px) {
  .cd-aside { order: 0; margin-top: var(--cd-lift, 0px); }
}
.cd-card {
  position: relative;
  padding: 0.5rem;
  background: var(--dh-paper);
  box-shadow: 0 40px 80px -40px rgba(5, 20, 20, 0.55), 0 0 0 1px rgba(20, 57, 57, 0.06);
}
@media (min-width: 1024px) {
  .cd-card {
    position: sticky;
    top: 6.25rem;
    transition: top 0.55s var(--dh-ease);
  }
  /* لما النافبار يختفي، الكرت بيطلع لفوق */
  html:has(.nv.is-hidden:not(.is-menu)) .cd-card { top: 1.5rem; }
}
.cd-card .cs-frame i { background: var(--dh-teal); }
.cd-card__in { border: 1px solid var(--dh-line-2); }
.cd-card__art .cs-thumb { aspect-ratio: 16 / 9.5; }
.cd-card__art .cs-thumb--img .cs-veil { clip-path: inset(0 0 0 100%); transition-delay: 0.6s; }
.cd-card:not(.is-visible) .cd-card__art .cs-thumb--img .cs-veil { clip-path: inset(0); }
.cd-card__art .cs-skel-art { aspect-ratio: 16 / 9.5; background: var(--dh-teal-50); border-bottom: 1px solid var(--dh-line-2); }

.cd-card__body { padding: 1.15rem 1.15rem 1.2rem; }
.cd-price {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}
.cd-price > span { font-size: 0.8rem; font-weight: 700; color: var(--dh-muted); padding-bottom: 0.35rem; }
.cd-price strong { display: flex; align-items: center; gap: 0.45rem; }
.cd-price img { width: 1.9rem; height: 1.9rem; }
.cd-price b {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1;
  color: var(--dh-teal);
  font-variant-numeric: tabular-nums;
}

.cd-buyrow {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  margin-top: 1rem;
}
.cd-buy { width: 100%; }
.cd-share {
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  border: 1px solid var(--dh-line-2);
  color: var(--dh-teal);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.cd-share svg { width: 1.2rem; height: 1.2rem; }
.cd-share:hover { background: var(--dh-teal); border-color: var(--dh-teal); color: #fff; }
.cd-share:focus-visible { outline: 2px solid var(--dh-gold); outline-offset: 3px; }

.cd-inc {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem 0.75rem;
  margin-top: 1.15rem;
  padding-top: 1.1rem;
  border-top: 1px dashed var(--dh-line-2);
}
.cd-inc li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--dh-text);
}
.cd-inc svg { width: 1rem; height: 1rem; flex-shrink: 0; color: var(--dh-gold-600); }
.cd-card .cs-tb { grid-template-columns: 1fr 1.3fr 0.8fr; }

/* ---------- أقسام المحتوى ---------- */
.cd-sec + .cd-sec { margin-top: clamp(3.5rem, 7vw, 5rem); }
.cd-sec .ds-head { margin-bottom: 1.75rem; }
.cd-sec .ds-title { margin-top: 0.9rem; font-size: clamp(1.7rem, 1.2rem + 1.5vw, 2.4rem); }

/* ملاحظات اللوحة (الوصف) */
.cd-notes { counter-reset: cdn; }
.cd-note {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.1rem;
  padding: 1.25rem 0;
}
.cd-note::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 1px;
  background: var(--dh-line-2);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 1s var(--dh-ease) calc(var(--reveal-delay, 0ms) + 0.1s);
}
.cd-note.is-visible::before { transform: none; }
.cd-note:last-child { border-bottom: 1px solid var(--dh-line-2); }
.cd-note__no {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  border: 1px solid var(--dh-line-2);
  font-family: var(--dh-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--dh-gold-600);
  background: var(--dh-paper);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.cd-note p {
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.12rem);
  line-height: 1.95;
  color: var(--dh-text);
}
.cd-note:hover .cd-note__no { background: var(--dh-teal); border-color: var(--dh-teal); color: var(--dh-gold-light); }

/* جدول الأقسام (متل جدول الكميات) */
.cd-sched {
  border: 1px solid var(--dh-line-2);
  background: var(--dh-paper);
}
.cd-row {
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr) auto;
  align-items: center;
  min-height: 3.4rem;
  border-bottom: 1px solid var(--dh-line-2);
  transition: background-color 0.3s ease;
}
.cd-row > * { padding: 0.75rem 1rem; }
.cd-row > * + * { border-inline-start: 1px solid var(--dh-line); }
.cd-row:hover { background: var(--dh-teal-50); }
.cd-row--head {
  min-height: 2.6rem;
  background: var(--dh-teal-50);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--dh-muted);
}
.cd-row__no { font-family: var(--dh-mono); font-size: 0.8rem; color: var(--dh-gold-600); text-align: center; }
.cd-row__t { font-weight: 700; color: var(--dh-teal); unicode-bidi: plaintext; text-align: right; }
.cd-row__lock {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--dh-muted);
  white-space: nowrap;
}
.cd-row__lock svg { width: 0.95rem; height: 0.95rem; color: var(--dh-gold-600); }
.cd-row--foot {
  min-height: 3rem;
  border-bottom: 0;
  background: var(--dh-teal);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
}
.cd-row--foot:hover { background: var(--dh-teal); }
.cd-row--foot > * + * { border-color: rgba(217, 235, 235, 0.16); }
.cd-row--foot b { font-family: var(--dh-mono); font-weight: 500; color: var(--dh-gold-light); }
.cd-empty-row { padding: 1.5rem 1rem; text-align: center; color: var(--dh-muted); font-weight: 600; }
@media (max-width: 479px) {
  .cd-row { grid-template-columns: 2.6rem minmax(0, 1fr); }
  .cd-row__lock { grid-column: 2; border-inline-start: 1px solid var(--dh-line); padding-top: 0 !important; }
  .cd-row--head .cd-row__lock { display: none; }
  .cd-row--foot { grid-template-columns: 2.6rem minmax(0, 1fr) auto; }
}

/* المدرّب */
.cd-teacher {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem 1.5rem;
  align-items: center;
  padding: 1.5rem;
  border: 1px solid var(--dh-line-2);
  background: var(--dh-paper);
}
.cd-avatar {
  position: relative;
  display: grid;
  place-items: center;
  width: 5.5rem;
  height: 5.5rem;
}
.cd-avatar svg { position: absolute; inset: 0; width: 100%; height: 100%; color: var(--dh-gold-600); }
.cd-avatar svg .ring { animation: cd-spin 24s linear infinite; transform-origin: 50% 50%; }
.cd-avatar span {
  display: grid;
  place-items: center;
  width: 4.1rem;
  height: 4.1rem;
  border-radius: 50%;
  background: var(--dh-teal);
  color: var(--dh-gold-light);
  font-size: 1.15rem;
  font-weight: 800;
}
.cd-teacher__role { font-size: 0.78rem; font-weight: 700; color: var(--dh-gold-600); }
.cd-teacher__name { margin-top: 0.2rem; font-size: 1.35rem; font-weight: 800; color: var(--dh-teal); }
.cd-teacher__meta { margin-top: 0.2rem; font-size: 0.9rem; color: var(--dh-muted); }
.cd-teacher__list {
  grid-column: 1 / -1;
  display: grid;
  border-top: 1px dashed var(--dh-line-2);
  padding-top: 0.5rem;
}
.cd-teacher__list a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.9rem;
  padding: 0.75rem 0.25rem;
  border-bottom: 1px solid var(--dh-line);
  transition: color 0.3s ease, padding 0.4s var(--dh-ease);
}
.cd-teacher__list li:last-child a { border-bottom: 0; }
.cd-teacher__list .m { font-family: var(--dh-mono); font-size: 0.75rem; color: var(--dh-gold-600); }
.cd-teacher__list .t { font-weight: 700; color: var(--dh-teal); unicode-bidi: plaintext; text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cd-teacher__list svg { width: 1rem; height: 1rem; color: var(--dh-teal); transition: transform 0.4s var(--dh-ease); }
.cd-teacher__list a:hover { padding-inline-start: 0.6rem; }
.cd-teacher__list a:hover svg { transform: translateX(-4px); }
.cd-teacher__list a:focus-visible { outline: 2px solid var(--dh-gold); outline-offset: 2px; }

/* دورات مشابهة */
.cd-related { border-top: 1px solid var(--dh-line); }
.cd-related .ds-head { margin-bottom: clamp(2.5rem, 5vw, 3.5rem); }

/* ---------- ما في دورة ---------- */
.cd-missing { display: none; }
.cd.is-missing .cd-missing { display: block; }
.cd.is-missing .cd-hero__text > :not(.cd-missing):not(.cd-crumbs),
.cd.is-missing .cd-body,
.cd.is-missing .cd-related,
.cd.is-missing .cd-cta { display: none; }
.cd.is-missing .cd-hero__text { min-height: 72svh; }
.cd.is-missing .cd-crumbs > :nth-last-child(-n + 2) { display: none; }
.cd-missing h1 { margin-top: 1.5rem; font-size: clamp(2.2rem, 1.4rem + 3vw, 3.6rem); font-weight: 900; }
.cd-missing p { margin-top: 1rem; max-width: 32rem; line-height: 1.85; color: rgba(217, 235, 235, 0.75); }
.cd-missing .ds-btn { margin-top: 2rem; }

/* ---------- شريط الشراء العائم (موبايل/تابلت) ---------- */
.cd-bar {
  position: fixed;
  inset-inline: 0.75rem;
  bottom: calc(0.75rem + env(safe-area-inset-bottom, 0px));
  z-index: 45;
  transform: translateY(calc(100% + 1.5rem));
  transition: transform 0.6s var(--dh-ease);
  pointer-events: none;
}
.cd-bar.is-on { transform: none; pointer-events: auto; }
.cd-bar__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  max-width: 34rem;
  margin-inline: auto;
  padding: 0.45rem 0.45rem 0.45rem 0.45rem;
  padding-inline-start: 1.1rem;
  border: 1px solid rgba(217, 235, 235, 0.14);
  border-radius: 999px;
  background: rgba(14, 43, 43, 0.86);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  box-shadow: 0 18px 40px -16px rgba(5, 20, 20, 0.6);
  color: #fff;
}
.cd-bar__info { min-width: 0; display: grid; }
.cd-bar__title { font-size: 0.78rem; font-weight: 600; color: rgba(217, 235, 235, 0.7); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; unicode-bidi: plaintext; text-align: right; }
.cd-bar__price { display: flex; align-items: center; gap: 0.35rem; font-size: 1.15rem; font-weight: 800; }
.cd-bar__price img { width: 1.2rem; height: 1.2rem; }
.cd-bar .ds-btn { height: 2.9rem; padding-inline: 1.3rem; border-radius: 999px; font-size: 0.92rem; flex-shrink: 0; }
@media (min-width: 1024px) { .cd-bar { display: none; } }

@keyframes cd-shimmer { from { background-position: 100% 0; } to { background-position: -50% 0; } }
@keyframes cd-spin { to { transform: rotate(360deg); } }
@keyframes cd-rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  .cd-note::before, .cd-card, .cd-bar, .cd-hero__glow { transition: none; }
  .cd.is-ready .cd-up { animation: none; }
  .cd-note::before { transform: none; }
  .cd-skel, .cd-avatar svg .ring { animation: none; }
}