/* ═══════════════════════════════════════════════════
   QELNIX — animations.css
   Keyframes · Reveal utilities · GSAP helpers
═══════════════════════════════════════════════════ */

/* CSS failsafe: if GSAP never loads, reveal everything after 4s */
@keyframes css-fallback-reveal {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Base reveal state — GSAP will animate these */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  animation: css-fallback-reveal 0.8s ease forwards;
  animation-delay: 4s;
}

/* Hero-specific fallbacks */
.hero-line-inner {
  animation: css-fallback-reveal 0.8s ease forwards;
  animation-delay: 4s;
}
.hero-sub,
.hero-actions,
.hero-eyebrow,
.nav-logo,
.nav-links,
.nav-cta-wrap {
  animation: css-fallback-reveal 0.6s ease forwards;
  animation-delay: 4s;
}

[data-reveal="left"] {
  transform: translateX(-32px);
}

[data-reveal="right"] {
  transform: translateX(32px);
}

[data-reveal="scale"] {
  transform: scale(0.92);
}

[data-reveal="none"] {
  transform: none;
}

/* Split text — each char/word wrapped by JS */
.split-char,
.split-word {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
}

.split-char-inner,
.split-word-inner {
  display: inline-block;
  transform: translateY(110%);
}

/* Floating keyframes */
@keyframes float-a {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33%  { transform: translateY(-12px) rotate(1deg); }
  66%  { transform: translateY(-6px) rotate(-1deg); }
}

@keyframes float-b {
  0%, 100% { transform: translateY(-8px) rotate(0deg); }
  50%  { transform: translateY(8px) rotate(-2deg); }
}

@keyframes float-c {
  0%, 100% { transform: translateY(0) scale(1); }
  50%  { transform: translateY(-16px) scale(1.02); }
}

/* Glow pulse */
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(0,212,255,0.3); }
  50%       { box-shadow: 0 0 50px rgba(0,212,255,0.6); }
}

/* Gradient shift */
@keyframes grad-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Grid scan line */
@keyframes scan {
  0%   { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

/* Blink */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%  { opacity: 0; }
}

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

.shimmer-text {
  background: linear-gradient(90deg, var(--c-white-40) 0%, var(--c-white) 40%, var(--c-cyan) 60%, var(--c-white-40) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}

/* Spin */
@keyframes spin-slow {
  to { transform: rotate(360deg); }
}

/* Particle drift */
@keyframes drift {
  0%   { transform: translateY(100vh) translateX(0) scale(0); opacity: 0; }
  10%  { opacity: 0.7; }
  90%  { opacity: 0.3; }
  100% { transform: translateY(-100px) translateX(30px) scale(1.5); opacity: 0; }
}

/* Scan line overlay on hero */
.scan-line {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, rgba(0,212,255,0.15) 50%, transparent 100%);
  pointer-events: none;
  animation: scan 6s linear infinite;
  z-index: 1;
}

/* Number ticker */
.ticker {
  font-variant-numeric: tabular-nums;
  transition: opacity 0.3s;
}

/* Horizontal scroll track progress */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-cyan));
  z-index: 600;
  transform-origin: left;
  transform: scaleX(0);
  box-shadow: 0 0 8px var(--c-cyan);
}

/* Magnetic button effect helper */
.magnetic {
  display: inline-block;
  transition: transform var(--t-mid) var(--ease-out);
}

/* Tilt card helper */
.tilt {
  transform-style: preserve-3d;
  perspective: 1000px;
}

/* Highlight underline on hover */
.hover-underline {
  position: relative;
  display: inline-block;
}

.hover-underline::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 100%; height: 1px;
  background: var(--c-cyan);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--t-mid) var(--ease-out);
}

.hover-underline:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Stagger helper classes */
.stagger-1 { transition-delay: 0.05s; }
.stagger-2 { transition-delay: 0.10s; }
.stagger-3 { transition-delay: 0.15s; }
.stagger-4 { transition-delay: 0.20s; }
.stagger-5 { transition-delay: 0.25s; }
.stagger-6 { transition-delay: 0.30s; }