/* ============================================
   ТОЧКА ОПОРЫ — Animations & Effects
   Scroll reveals, transitions, keyframes
   ============================================ */

/* --- Reveal System (controlled by JS) --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--duration-normal) var(--ease-out-expo),
              transform var(--duration-normal) var(--ease-out-expo);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--left {
  transform: translateX(-60px);
}

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

.reveal--right {
  transform: translateX(60px);
}

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

.reveal--scale {
  transform: scale(0.9);
}

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

.reveal--rotate {
  transform: rotate(-3deg) translateY(30px);
}

.reveal--rotate.is-visible {
  transform: rotate(0) translateY(0);
}

/* Stagger children */
.stagger-children .reveal:nth-child(1) { transition-delay: 0.05s; }
.stagger-children .reveal:nth-child(2) { transition-delay: 0.1s; }
.stagger-children .reveal:nth-child(3) { transition-delay: 0.15s; }
.stagger-children .reveal:nth-child(4) { transition-delay: 0.2s; }
.stagger-children .reveal:nth-child(5) { transition-delay: 0.25s; }
.stagger-children .reveal:nth-child(6) { transition-delay: 0.3s; }
.stagger-children .reveal:nth-child(7) { transition-delay: 0.35s; }
.stagger-children .reveal:nth-child(8) { transition-delay: 0.4s; }

/* --- Magnetic Button Effect --- */
.magnetic {
  transition: transform 0.2s var(--ease-out-expo);
}

/* --- Text Mask Reveal --- */
.text-reveal {
  overflow: hidden;
  display: inline-block;
}

.text-reveal__inner {
  display: inline-block;
  transform: translateY(105%);
  transition: transform 0.8s var(--ease-out-expo);
}

.text-reveal.is-visible .text-reveal__inner {
  transform: translateY(0);
}

/* --- Parallax (controlled by JS) --- */
.parallax {
  will-change: transform;
}

/* --- Float animation --- */
.float {
  animation: float-y 6s ease-in-out infinite;
}

@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-16px); }
}

/* --- Spin slow --- */
.spin-slow {
  animation: spin-slow 20s linear infinite;
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* --- Glow pulse --- */
.glow-pulse {
  animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% {
    box-shadow: 0 0 20px rgba(255, 94, 58, 0.15);
  }
  50% {
    box-shadow: 0 0 40px rgba(255, 94, 58, 0.35);
  }
}

/* --- Shimmer text --- */
.shimmer {
  background: linear-gradient(
    90deg,
    var(--color-cream) 0%,
    var(--color-coral) 25%,
    var(--color-amber) 50%,
    var(--color-coral) 75%,
    var(--color-cream) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}

@keyframes shimmer {
  0%   { background-position: 0% center; }
  100% { background-position: 200% center; }
}

/* --- Count up (number tween visual hint) --- */
.count-up {
  font-variant-numeric: tabular-nums;
}

/* --- Image hover zoom --- */
.img-zoom {
  overflow: hidden;
  border-radius: var(--radius-md);
}

.img-zoom img {
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

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

/* --- Line draw (SVG paths) --- */
.line-draw {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  transition: stroke-dashoffset 2s var(--ease-in-out);
}

.line-draw.is-visible {
  stroke-dashoffset: 0;
}

/* --- Loading screen --- */
.loader {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 99999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

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

.loader__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.loader__logo .dot {
  width: 12px;
  height: 12px;
  background: var(--color-coral);
  border-radius: 50%;
  animation: pulse-dot 1s ease-in-out infinite;
}

.loader__bar {
  width: 200px;
  height: 3px;
  background: var(--color-border);
  border-radius: 3px;
  overflow: hidden;
}

.loader__bar-inner {
  height: 100%;
  background: var(--color-coral);
  border-radius: 3px;
  animation: loader-fill 1.8s var(--ease-out-expo) forwards;
}

@keyframes loader-fill {
  0%   { width: 0%; }
  100% { width: 100%; }
}

/* --- Horizontal scroll progress for timeline --- */
.timeline-progress {
  height: 3px;
  background: var(--color-border);
  border-radius: 3px;
  margin-top: 24px;
  overflow: hidden;
}

.timeline-progress__bar {
  height: 100%;
  background: var(--color-coral);
  border-radius: 3px;
  width: 0%;
  transition: width 0.1s linear;
}

/* --- Hover card tilt (3D effect via JS) --- */
.tilt-card {
  transform-style: preserve-3d;
  perspective: 1000px;
  transition: transform 0.1s ease;
}

.tilt-card__inner {
  transform: translateZ(20px);
}

/* --- Gradient text --- */
.gradient-text {
  background: linear-gradient(135deg, var(--color-coral), var(--color-amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text--cool {
  background: linear-gradient(135deg, var(--color-teal), var(--color-lavender));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Noise overlay keyframe --- */
@keyframes noise-shift {
  0%   { background-position: 0 0; }
  25%  { background-position: 50% 50%; }
  50%  { background-position: 100% 0; }
  75%  { background-position: 50% 100%; }
  100% { background-position: 0 0; }
}