/* ============================================================
   SOLANTIR TECHNOLOGIES — animations.css
   Keyframes, scroll-reveal, ambient effects
   ============================================================ */

/* ── Keyframes ── */

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

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

@keyframes fadeDown {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Hero gradient ambient pulse */
@keyframes gradientPulse {
  0%   { opacity: 0.30; transform: scale(1)    rotate(0deg); }
  50%  { opacity: 0.50; transform: scale(1.08) rotate(4deg); }
  100% { opacity: 0.30; transform: scale(1)    rotate(0deg); }
}

@keyframes gradientPulse2 {
  0%   { opacity: 0.20; transform: scale(1)    rotate(0deg); }
  50%  { opacity: 0.38; transform: scale(1.05) rotate(-3deg); }
  100% { opacity: 0.20; transform: scale(1)    rotate(0deg); }
}

/* Floating dot / particle ambient */
@keyframes floatDot {
  0%   { transform: translateY(0px)  translateX(0px);  opacity: 0.4; }
  33%  { transform: translateY(-12px) translateX(6px); opacity: 0.7; }
  66%  { transform: translateY(-6px)  translateX(-4px); opacity: 0.5; }
  100% { transform: translateY(0px)  translateX(0px);  opacity: 0.4; }
}

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

/* Orange underline expand */
@keyframes expandLine {
  from { width: 0; }
  to   { width: 100%; }
}

/* ── Scroll-Reveal Base States ── */
/* Elements start invisible; JS adds .is-visible to trigger animation */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity  var(--duration-slower) var(--ease-out),
    transform var(--duration-slower) var(--ease-out);
  will-change: opacity, transform;
}

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

/* Staggered children — JS sets --delay on each child */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity  var(--duration-slower) var(--ease-out),
    transform var(--duration-slower) var(--ease-out);
  transition-delay: var(--delay, 0ms);
  will-change: opacity, transform;
}

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

/* Fade only (for backgrounds, overlays) */
.reveal-fade {
  opacity: 0;
  transition: opacity var(--duration-slower) var(--ease-out);
  will-change: opacity;
}

.reveal-fade.is-visible {
  opacity: 1;
}

/* Scale in */
.reveal-scale {
  opacity: 0;
  transform: scale(0.97);
  transition:
    opacity   var(--duration-slower) var(--ease-out),
    transform var(--duration-slower) var(--ease-out);
  will-change: opacity, transform;
}

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

/* Slide from left */
.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition:
    opacity   var(--duration-slower) var(--ease-out),
    transform var(--duration-slower) var(--ease-out);
  will-change: opacity, transform;
}

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

/* Slide from right */
.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition:
    opacity   var(--duration-slower) var(--ease-out),
    transform var(--duration-slower) var(--ease-out);
  will-change: opacity, transform;
}

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

/* ── Hero Ambient Background ── */
.hero-ambient {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.hero-ambient__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
}

.hero-ambient__orb--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(44, 95, 138, 0.16) 0%, transparent 70%);
  top: -15%;
  right: -8%;
  animation: gradientPulse 12s ease-in-out infinite;
}

.hero-ambient__orb--2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(22, 20, 19, 0.07) 0%, transparent 70%);
  bottom: 0%;
  left: -5%;
  animation: gradientPulse2 15s ease-in-out infinite;
}

.hero-ambient__orb--3 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(160, 114, 52, 0.10) 0%, transparent 70%);
  top: 40%;
  left: 30%;
  animation: gradientPulse 18s ease-in-out infinite reverse;
}

/* Ambient dots grid */
.hero-ambient__dots {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(51,47,47,0.08) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 0%, transparent 100%);
}

/* ── Division Section Ambient ── */
.division-ambient {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.division-ambient__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
}

.division-ambient__orb--1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(44, 95, 138, 0.10) 0%, transparent 70%);
  top: -10%;
  right: 5%;
  animation: gradientPulse 14s ease-in-out infinite;
}

.division-ambient__orb--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(160, 114, 52, 0.06) 0%, transparent 70%);
  bottom: 0;
  left: 10%;
  animation: gradientPulse2 17s ease-in-out infinite;
}

/* ── Hero Text Entrance ── */
.hero-headline--line {
  display: block;
  overflow: hidden;
}

.hero-headline--line span {
  display: block;
  animation: fadeUp var(--duration-slower) var(--ease-out) both;
}

.hero-headline--line:nth-child(1) span { animation-delay: 100ms; }
.hero-headline--line:nth-child(2) span { animation-delay: 220ms; }
.hero-headline--line:nth-child(3) span { animation-delay: 340ms; }

.hero-sub {
  animation: fadeUp var(--duration-slower) var(--ease-out) 500ms both;
}

.hero-ctas {
  animation: fadeUp var(--duration-slower) var(--ease-out) 660ms both;
}

/* ── Page Transition Fade ── */
.page-fade {
  animation: fadeIn 400ms var(--ease-out) both;
}

/* ── Hover micro-interactions ── */
.hover-lift {
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.10);
}

/* Orange line underline reveal on link hover */
.hover-underline {
  position: relative;
  display: inline-block;
}

.hover-underline::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1.5px;
  background: var(--signal);
  transition: width var(--duration-base) var(--ease-out);
}

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

/* Mobile — reduce ambient animations */
@media (max-width: 768px) {
  .hero-ambient__orb--1 { width: 350px; height: 350px; }
  .hero-ambient__orb--2 { width: 280px; height: 280px; }
  .hero-ambient__orb--3 { display: none; }
}