/* ===== LOADING SCREEN ===== */
.loader {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-sm);
  transition: opacity var(--duration-slow) var(--ease-in-out),
              visibility var(--duration-slow);
}

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

.loader__logo {
  font-family: var(--font-accent);
  font-size: var(--text-5xl);
  letter-spacing: 0.4em;
  color: var(--color-text);
  animation: loader-pulse 1.5s ease-in-out infinite;
}

.loader__bar {
  width: 120px; height: 1px;
  background: var(--color-surface-3);
  position: relative;
  overflow: hidden;
}

.loader__bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-primary);
  transform: translateX(-100%);
  animation: loader-bar 1s var(--ease-out-expo) 200ms forwards;
}

@keyframes loader-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.35; }
}

@keyframes loader-bar {
  to { transform: translateX(0); }
}

/* ===== SCROLL ANIMATIONS ===== */
.animate-fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
  will-change: transform, opacity;
}

.animate-fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-fade-in {
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out-expo);
}

.animate-fade-in.is-visible { opacity: 1; }

.animate-slide-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
  will-change: transform, opacity;
}

.animate-slide-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.animate-slide-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
  will-change: transform, opacity;
}

.animate-slide-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger delays */
.animate-delay-1 { transition-delay: 100ms; }
.animate-delay-2 { transition-delay: 200ms; }
.animate-delay-3 { transition-delay: 300ms; }
.animate-delay-4 { transition-delay: 400ms; }
.animate-delay-5 { transition-delay: 500ms; }

/* ===== HERO TITLE SPLIT ===== */
.hero__title-char {
  display: inline-block;
  overflow: hidden;
}

.hero__title-char span {
  display: inline-block;
  transform: translateY(110%);
  transition: transform var(--duration-xslow) var(--ease-out-expo);
}

.hero__title-char.is-revealed span { transform: translateY(0); }

/* ===== LINE DRAW ===== */
.line-draw {
  position: relative;
  overflow: hidden;
}

.line-draw::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--color-primary);
  transition: width var(--duration-slow) var(--ease-out-expo);
}

.line-draw.is-visible::after { width: 100%; }

/* ===== SCROLL INDICATOR ===== */
@keyframes scroll-line {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50%       { opacity: 0.3; transform: scaleY(0.6); }
}