/* ==========================================================================
   ELLWEN PAINTS — Animations & Transitions
   Scroll-reveal, fade-in, counters, parallax, hover effects, page transitions
   ========================================================================== */

/* ── Page Loader ─────────────────────────────────────────────────────────── */

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loader__spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--color-light-grey);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Scroll Reveal ───────────────────────────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Reveal variants */
.reveal--left {
  transform: translateX(-40px);
}

.reveal--left.revealed {
  transform: translateX(0);
}

.reveal--right {
  transform: translateX(40px);
}

.reveal--right.revealed {
  transform: translateX(0);
}

.reveal--scale {
  transform: scale(0.95);
}

.reveal--scale.revealed {
  transform: scale(1);
}

/* Staggered reveal — children delay */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.revealed > *:nth-child(2) { transition-delay: 100ms; }
.reveal-stagger.revealed > *:nth-child(3) { transition-delay: 200ms; }
.reveal-stagger.revealed > *:nth-child(4) { transition-delay: 300ms; }
.reveal-stagger.revealed > *:nth-child(5) { transition-delay: 400ms; }
.reveal-stagger.revealed > *:nth-child(6) { transition-delay: 500ms; }
.reveal-stagger.revealed > *:nth-child(7) { transition-delay: 600ms; }
.reveal-stagger.revealed > *:nth-child(8) { transition-delay: 700ms; }

.reveal-stagger.revealed > * {
  opacity: 1;
  transform: translateY(0);
}

/* ── Fade Animations ─────────────────────────────────────────────────────── */

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ── Hover Effects ───────────────────────────────────────────────────────── */

.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.hover-grow {
  transition: transform var(--transition-base);
}

.hover-grow:hover {
  transform: scale(1.03);
}

/* Image zoom on hover (within overflow:hidden container) */
.hover-zoom {
  overflow: hidden;
}

.hover-zoom img {
  transition: transform 0.6s ease;
}

.hover-zoom:hover img {
  transform: scale(1.08);
}

/* ── Button Hover ────────────────────────────────────────────────────────── */

.btn {
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(-100%);
  transition: transform var(--transition-slow);
}

.btn:hover::after {
  transform: translateX(0);
}

/* ── Counter Animation ───────────────────────────────────────────────────── */

.counter-value {
  font-variant-numeric: tabular-nums;
}

/* ── Parallax (via JS) ───────────────────────────────────────────────────── */

.parallax-container {
  overflow: hidden;
  position: relative;
}

.parallax-bg {
  position: absolute;
  inset: -20% 0;
  width: 100%;
  height: 140%;
  object-fit: cover;
  will-change: transform;
}

/* ── Pulse Animation (for floating buttons) ──────────────────────────────── */

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(var(--color-brand-accent-rgb), 0.4);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(var(--color-brand-accent-rgb), 0);
  }
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* ── Underline Slide ─────────────────────────────────────────────────────── */

.underline-slide {
  position: relative;
  display: inline-block;
}

.underline-slide::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-brand-accent);
  transition: width var(--transition-base);
}

.underline-slide:hover::after {
  width: 100%;
}

/* ── Decorative Paint Stroke ─────────────────────────────────────────────── */

.paint-stroke {
  position: relative;
  display: inline-block;
}

.paint-stroke::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: -4px;
  right: -4px;
  height: 12px;
  background: rgba(var(--color-brand-accent-rgb), 0.2);
  z-index: -1;
  border-radius: 2px;
  transform: skewX(-3deg);
}

/* ── Smooth Transitions for Page Elements ────────────────────────────────── */

.animate-in {
  animation: fadeInUp 0.7s ease both;
}

.animate-in--delay-1 { animation-delay: 100ms; }
.animate-in--delay-2 { animation-delay: 200ms; }
.animate-in--delay-3 { animation-delay: 300ms; }
.animate-in--delay-4 { animation-delay: 400ms; }
.animate-in--delay-5 { animation-delay: 500ms; }

/* ── Gradient Text (accent) ──────────────────────────────────────────────── */

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ── Reduced Motion Override ─────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .reveal-stagger > * {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hover-lift:hover {
    transform: none;
  }

  .hover-zoom:hover img {
    transform: none;
  }

  .parallax-bg {
    position: absolute;
    inset: 0;
    height: 100%;
  }

  .pulse {
    animation: none;
  }
}