/* ════════════════════════════════════════════════════════════════
   Preloader — wave draws → calligraphy → letters → split exit
   ════════════════════════════════════════════════════════════════ */

.preloader {
  position: fixed;
  inset: 0;
  z-index: var(--z-preloader);
  background: var(--color-navy-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: opacity 0.6s ease;
}

.preloader-wave-pattern {
  position: absolute;
  inset: 0;
  background-image: url("../images/pattern-wave.svg");
  background-size: 600px;
  opacity: 0.06;
  animation: pattern-drift 30s linear infinite;
}

@keyframes pattern-drift {
  from { background-position: 0 0; }
  to   { background-position: 600px 600px; }
}

.preloader-content {
  position: relative;
  text-align: center;
  z-index: 1;
}

.preloader-wave {
  width: 200px;
  height: 60px;
  margin: 0 auto var(--space-md);
}

.wave-path {
  stroke-dasharray: 400;
  stroke-dashoffset: 400;
  animation: draw-wave 1.2s ease-out forwards;
}

@keyframes draw-wave {
  to { stroke-dashoffset: 0; }
}

.wave-dot {
  opacity: 0;
  animation: dot-appear 0.3s ease-out 1.2s forwards;
}

@keyframes dot-appear { to { opacity: 1; } }

.preloader-arabic {
  font-family: var(--font-arabic-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-cream);
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  opacity: 0;
  transform: translateY(10px);
  animation: fade-up 0.8s ease-out 1.2s forwards;
}

@keyframes fade-up {
  to { opacity: 1; transform: translateY(0); }
}

.preloader-english {
  font-family: var(--font-numeric);
  font-size: 0.875rem;
  letter-spacing: 0.4em;
  color: var(--color-bronze);
  margin: 0 0 var(--space-lg);
  font-weight: 500;
  direction: ltr;
}

.preloader-english span {
  display: inline-block;
  opacity: 0;
  transform: translateY(8px);
  animation: letter-reveal 0.04s ease-out forwards;
}

@keyframes letter-reveal {
  to { opacity: 1; transform: translateY(0); }
}

.preloader-progress {
  width: 200px;
  height: 2px;
  margin: 0 auto;
  background: rgba(245, 241, 234, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.preloader-progress-bar {
  width: 0;
  height: 100%;
  background: var(--color-bronze);
  animation: progress-fill 3s ease-in-out forwards;
}

@keyframes progress-fill {
  to { width: 100%; }
}

/* Exit animation — split apart */
.preloader.exit { pointer-events: none; }

.preloader.exit::before,
.preloader.exit::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 50%;
  background: var(--color-navy-deep);
  /* Kept in sync with the 500ms setTimeout in preloader.js so the
     split fully completes before .hidden gets applied. */
  transition: transform 0.5s cubic-bezier(0.76, 0, 0.24, 1);
}

.preloader.exit::before {
  top: 0;
  transform: translateY(-100%);
}

.preloader.exit::after {
  bottom: 0;
  transform: translateY(100%);
}

.preloader.exit .preloader-content,
.preloader.exit .preloader-wave-pattern {
  opacity: 0;
  transition: opacity 0.3s;
}

.preloader.hidden { display: none; }