/* ==========================================================================
   ALENZY · animations.css
   المفاتيح الحركية، الظهور، تقسيم الكلمات، شاشة التحميل، وانتقال الصفحات.
   ========================================================================== */

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-soft); }
  50% { box-shadow: 0 0 0 6px transparent; }
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
html[dir="rtl"] .marquee__track { animation-direction: reverse; }
html[dir="rtl"] .marquee--reverse .marquee__track { animation-direction: normal; }
.marquee--reverse .marquee__track { animation-direction: reverse; animation-duration: 46s; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes markShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}
@keyframes headerIn {
  from { opacity: 0; transform: translateY(-14px); }
  to { opacity: 1; transform: translateY(0); }
}


/* دخول الهيدر بعد رفع الستارة */
html.js:not(.is-loaded) .brand,
html.js:not(.is-loaded) .header-actions { opacity: 0; }
html.is-loaded .brand,
html.is-loaded .header-actions { animation: headerIn 0.85s var(--expo) both; }
html.is-loaded .header-actions { animation-delay: 0.1s; }

/* ---------- الظهور عند التمرير (transform/opacity فقط — بلا filter لأداء عالٍ) ---------- */
html.js [data-reveal] { opacity: 0; transform: translateY(var(--reveal-y)); }
html.js [data-reveal="fade"] { transform: none; }
html.js [data-reveal] {
  transition: opacity 0.9s var(--expo), transform 0.9s var(--expo);
  transition-delay: var(--reveal-delay, 0ms);
}
html.js [data-reveal].is-revealed { opacity: 1; transform: none; }
/* دخول أعمق للبطاقات: انزلاق + تكبير طفيف يوحي بالعمق */
html.js [data-reveal].card { transform: translateY(var(--reveal-y)) scale(0.975); }
html.js [data-reveal].card.is-revealed { transform: none; }

/* كشف بالماسك: قطاعٌ يُكشف من حافّته السفلى (للصور/الكتل) */
html.js [data-reveal="mask"] {
  opacity: 1;
  transform: none;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 1.15s var(--expo);
  transition-delay: var(--reveal-delay, 0ms);
}
html.js [data-reveal="mask"].is-revealed { clip-path: inset(0 0 0 0); }

/* كشف بمنظور: طيّة ثلاثية الأبعاد من الأعلى — يعطي إحساس «استقرار» فاخر */
html.js [data-reveal="flip"] {
  transform: perspective(1100px) rotateX(var(--reveal-tilt)) translateY(18px);
  transform-origin: top center;
}
html.js [data-reveal="flip"].is-revealed { transform: none; }

/* ---------- صفوف تتكشّف متتابعة (تُفعَّل من JS: .row-reveal) ---------- */
html.js .row-reveal > * {
  opacity: 0;
  transform: perspective(1000px) rotateX(-7deg) translateY(24px);
  transform-origin: top center;
  transition: opacity 0.85s var(--expo), transform 0.85s var(--expo);
  transition-delay: var(--reveal-delay, 0ms);
}
html.js .row-reveal.is-revealed > * { opacity: 1; transform: none; }
html.js .row-reveal.is-revealed > *:last-child { transition-delay: var(--reveal-delay, 0ms); }


/* ---------- تقسيم الكلمات (Hero) ---------- */
[data-split] { display: block; }
[data-split] .word {
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
  padding-bottom: 0.2em;
  margin-bottom: -0.2em;
}
[data-split] .word__inner {
  display: inline-block;
  transform: translateY(116%) scale(0.96);
  transform-origin: bottom;
  will-change: transform;
}
html.js [data-split] .word__inner {
  transition: transform 1.15s var(--ease-spring);
  transition-delay: var(--w-delay, 0ms);
  will-change: transform;
}
html.js [data-split].is-split .word__inner { transform: translateY(0) scale(1); }

/* ---------- شاشة التحميل (Preloader بستارة أعمدة) ---------- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: var(--z-preloader);
  display: flex;
  align-items: flex-end;
  background: transparent;
}
.preloader__cols {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
}
.preloader__col {
  flex: 1;
  height: 100%;
  background: var(--bg-inverse);
  transform-origin: top center;
  transition: transform 0.95s var(--expo);
  transition-delay: calc(var(--i) * 55ms);
}
.preloader.is-done .preloader__col { transform: scaleY(0); }
.preloader__inner {
  position: relative;
  z-index: 1;
  width: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: var(--gutter);
  transition: opacity 0.5s var(--ease);
  color: var(--ink);
}
.preloader.is-done .preloader__inner { opacity: 0; }
.preloader__brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.preloader__label {
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.preloader__count {
  font-family: var(--font-display);
  font-size: clamp(3rem, 2rem + 9vw, 11rem);
  line-height: 0.85;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.preloader__bar {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 2px;
  background: var(--inv-line);
  z-index: 1;
}
.preloader__bar span { display: block; height: 100%; width: 0; background: var(--ink); }

/* شبكة الخطوط العمودية */
.grid-lines {
  position: fixed;
  inset: 0;
  z-index: 0;
  display: flex;
  justify-content: space-between;
  padding-inline: var(--gutter);
  pointer-events: none;
}
.grid-lines__line {
  width: 1px;
  height: 100%;
  background: var(--line);
  transform-origin: top center;
}

/* ---------- انتقال الصفحات (ستارة أعمدة متتابعة) ---------- */
.page-transition {
  position: fixed;
  inset: 0;
  z-index: 950;
  display: grid;
  place-items: center;
  overflow: hidden;
  pointer-events: none;
  background: transparent;
}
.page-transition__panel {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(var(--i) * 100% / var(--cols, 5));
  width: calc(100% / var(--cols, 5));
  background: var(--bg-inverse);
  transform: translateY(0);
  transition: transform var(--dur-slow) var(--expo);
  transition-delay: calc(var(--i) * 62ms);
}
.page-transition.is-away .page-transition__panel { transform: translateY(101%); }
/* الخروج أسرع من الدخول — الانتقال لا يعطّل التصفّح أبداً */
.page-transition.is-leaving .page-transition__panel {
  transition-duration: 0.42s;
  transition-delay: calc(var(--i) * 34ms);
}
.page-transition__ring {
  position: absolute;
  inset: 0;
  margin: auto;
  inline-size: min(62vmin, 24rem);
  block-size: min(62vmin, 24rem);
  border: 1px dashed var(--inv-line-2);
  border-radius: 50%;
  animation: spin 14s linear infinite;
  transition: opacity 0.35s var(--ease);
}
.page-transition__mark {
  position: relative;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 1rem + 7vw, 6rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  color: var(--ink);
  transition: opacity 0.35s var(--ease), transform 0.6s var(--expo);
}
.page-transition.is-away .page-transition__ring,
.page-transition.is-away .page-transition__mark { opacity: 0; }
.page-transition.is-away .page-transition__mark { transform: translateY(-14px); }


/* ---------- لمسات حيّة ---------- */
.brand__mark { will-change: transform; }
.brand:hover .brand__mark { transform: rotate(-6deg); }

/* ---------- حركة مرتبطة بالتمرير: خط رأس القسم يُرسم تدريجياً ---------- */
@keyframes shLine { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.section-head { position: relative; }
.section-head::after,
.principle::before {
  content: "";
  position: absolute;
  height: 1px;
  background: var(--accent);
  transform-origin: inline-start;
  transform: scaleX(var(--sh-progress, 0));
}
.section-head::after { inset-inline: 0; bottom: -1px; }
.principle::before { inset-inline: 0; top: -1px; }
/* المتصفحات الداعمة ترسم الخط عبر timeline؛ والبقية تتولّاه GSAP على --sh-progress */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .section-head::after,
    .principle::before {
      transform: scaleX(0);
      animation: shLine linear both;
      animation-timeline: view();
      animation-range: entry 8% cover 30%;
    }
  }
}
@media (prefers-reduced-motion: reduce) {
  .section-head::after, .principle::before { transform: scaleX(1); }
}

/* ---------- تجاوب مع تقليل الحركة ---------- */
@media (prefers-reduced-motion: reduce) {
  html.js [data-reveal] { opacity: 1 !important; transform: none !important; clip-path: none !important; }
  html.js .row-reveal > * { opacity: 1 !important; transform: none !important; }
  [data-split] .word__inner { transform: none !important; }
  .marquee__track { animation: none; }
  .orb__svg { animation: none; }
  .badge__dot { animation: none; }
  .page-transition { transition: none; }
  .page-transition__ring { animation: none; }
  .page-transition__panel { transition: none; transition-delay: 0ms; }
  .aurora { animation: none; }
  .preloader__col { transition: none; }
  .project-preview { display: none; }
  .site-footer__mark span { animation: none; }
  .brand, .header-actions { animation: none; }
  html.is-loaded .brand, html.is-loaded .header-actions { animation: none; }
  .site-nav__list li, .site-nav__meta > div { transition: none; }
  .cursor { display: none !important; }
}
html:not(.js) .preloader { background: var(--bg-inverse); }