/* ============================================
   ANIMATIONS.CSS — Keyframes & Motion Systems
   ============================================ */

/* ============================================
   KEYFRAMES
   ============================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

@keyframes pulse-ring {
  0% {
    opacity: 0.8;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(1.6);
  }
}

@keyframes scanline {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

@keyframes glitch {
  0% { clip-path: inset(0 0 95% 0); transform: translate(-3px, 0); }
  10% { clip-path: inset(40% 0 50% 0); transform: translate(3px, 0); }
  20% { clip-path: inset(80% 0 5% 0); transform: translate(-3px, 0); }
  30% { clip-path: inset(20% 0 70% 0); transform: translate(0px, 0); }
  40% { clip-path: inset(60% 0 30% 0); transform: translate(3px, 0); }
  50% { clip-path: inset(0 0 95% 0); transform: translate(-3px, 0); }
  60% { clip-path: inset(0 0 0 0); transform: translate(0, 0); }
  100% { clip-path: inset(0 0 0 0); transform: translate(0, 0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes beam {
  0% { transform: translateX(-100%) skewX(-20deg); opacity: 0; }
  20% { opacity: 1; }
  100% { transform: translateX(400%) skewX(-20deg); opacity: 0; }
}

@keyframes borderGlow {
  0%, 100% { border-color: rgba(0,240,255,0.1); }
  50% { border-color: rgba(0,240,255,0.4); }
}

@keyframes gridMove {
  0% { background-position: 0 0; }
  100% { background-position: 60px 60px; }
}

/* ============================================
   HERO ANIMATIONS
   ============================================ */
.hero {
  animation: fadeIn 0.5s ease;
}

.hero__label { animation: fadeInUp 0.6s ease 0.1s both; }
.hero__headline { animation: fadeInUp 0.8s cubic-bezier(0.16,1,0.3,1) 0.2s both; }
.hero__sub { animation: fadeInUp 0.6s ease 0.4s both; }
.hero__flow { animation: fadeInUp 0.6s ease 0.5s both; }
.hero__ctas { animation: fadeInUp 0.6s ease 0.6s both; }

/* ============================================
   SCROLL REVEAL
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1),
              transform 0.7s cubic-bezier(0.16,1,0.3,1);
}

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

.reveal--left {
  transform: translateX(-30px);
}

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

.reveal--right {
  transform: translateX(30px);
}

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

.reveal--scale {
  transform: scale(0.94);
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.16,1,0.3,1);
}

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

/* Stagger delays */
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }
.reveal-d5 { transition-delay: 0.5s; }

/* ============================================
   BACKGROUND EFFECTS
   ============================================ */
.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black, transparent);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black, transparent);
}

.hero__glow-1 {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,240,255,0.08) 0%, transparent 70%);
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  animation: float 8s ease-in-out infinite;
}

.hero__glow-2 {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,85,255,0.06) 0%, transparent 70%);
  bottom: -100px;
  right: 10%;
  animation: float 12s ease-in-out infinite reverse;
}

/* Scanline effect on hero */
.hero__scanline {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    transparent 0%,
    rgba(0,240,255,0.02) 50%,
    transparent 100%
  );
  background-size: 100% 4px;
  pointer-events: none;
}

/* ============================================
   HOVER EFFECTS
   ============================================ */
.hover-lift {
  transition: transform var(--t2), box-shadow var(--t2);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.4);
}

.hover-glow {
  transition: box-shadow var(--t3);
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(0,240,255,0.15);
}

/* ============================================
   BEAM / SHIMMER
   ============================================ */
.shimmer {
  position: relative;
  overflow: hidden;
}

.shimmer::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 60px;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255,255,255,0.08),
    transparent
  );
  animation: beam 4s ease infinite 2s;
}

/* ============================================
   TEXT EFFECTS
   ============================================ */
.text-gradient {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-subtle {
  background: linear-gradient(160deg, #f0f0f0 40%, rgba(240,240,240,0.5) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Cursor blink */
.cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--cyan);
  vertical-align: middle;
  animation: pulse-dot 1s ease-in-out infinite;
  margin-left: 2px;
}

/* ============================================
   PAGE TRANSITIONS
   ============================================ */
.page-enter {
  animation: fadeInUp 0.5s cubic-bezier(0.16,1,0.3,1) both;
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ============================================
   STEP 2 — MICRO-INTERACTION HOOKS
   ============================================ */

/* Section entered — subtle fade-up for non-reveal sections */
section,
header.page-header {
  opacity: 1;
}

/* Card glow layer — CSS fallback (JS injects inline styles) */
.card-glow-layer {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  pointer-events: none;
  z-index: 0;
  transition: opacity 0.3s ease;
  will-change: background;
}

/* Ensure card content sits above glow layer */
.card > *,
.system-card > *,
.contact-link > *,
.pathway-card > * {
  position: relative;
  z-index: 1;
}

/* Prevent border-trace from blocking card content */
.system-card {
  isolation: isolate;
}

/* Magnetic button — smooth snap-back handled by JS */
.btn--primary,
.nav__cta {
  will-change: transform;
}

/* Hero content — 3D tilt prep */
.hero__content {
  transform-style: preserve-3d;
  will-change: transform;
}

/* Flow label — enhanced active transition */
.flow__label {
  transition: color var(--t2), border-color var(--t2), background var(--t2), transform 0.2s ease;
}

.flow__label.active {
  transform: translateY(-2px);
}

/* Section entered utility */
.section--entered > .container {
  animation: fadeInUp 0.5s cubic-bezier(0.16,1,0.3,1) both;
}