/* =====================================================================
   CHAVANS — SOLUTIONS PAGE ANIMATIONS
   sol-animations.css
   All animation base states and transitions for the solutions page.
===================================================================== */

/* ── Progress bar ───────────────────────────────────────────────── */
.sol-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, #ffffff 0%, rgba(255,255,255,0.6) 100%);
  z-index: 9999;
  pointer-events: none;
  transition: width 0.1s linear;
}

/* ── Sticky Nav ─────────────────────────────────────────────────── */
.page-sol .nav {
  transition: background 0.4s ease, backdrop-filter 0.4s ease, box-shadow 0.4s ease;
}
.page-sol .nav.sol-nav--sticky {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.08);
  z-index: 100;
}
/* Push hero body down when nav becomes sticky */
.page-sol .nav.sol-nav--sticky ~ .s-hero .hero-body {
  padding-top: 80px;
}

/* ── Frame rule draw animation (How to Read section) ────────────── */
.sol-rule-grow {
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 1.4s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
  opacity: 1;
}
.sol-rule-grow.is-visible {
  transform: scaleY(1);
}

/* ── Fade-up base state ─────────────────────────────────────────── */
[data-sol-anim="fade-up"] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-sol-anim="fade-up"].sol-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Card rise (hero card) ──────────────────────────────────────── */
[data-sol-anim="card-rise"] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.15s,
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.15s;
}
[data-sol-anim="card-rise"].sol-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Card stagger (situations grid) ────────────────────────────── */
[data-sol-anim="card-stagger"] {
  opacity: 0;
  transform: translateY(28px) scale(0.98);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.65s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s ease;
}
[data-sol-anim="card-stagger"].sol-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* ── Card hover glow (situations tiles) ────────────────────────── */
.s-situations .card {
  cursor: default;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.s-situations .card:hover {
  transform: translateY(-6px);
}
.s-situations a.card { cursor: pointer; }
.s-situations .card-tile {
  position: relative;
  overflow: hidden;
  border-radius: inherit;
}
.s-situations .card-tile::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 40%, rgba(255,255,255,0.08) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.s-situations .card:hover .card-tile::after {
  opacity: 1;
}

/* ── CTA button hover effect ────────────────────────────────────── */
.cta-btn {
  position: relative;
  overflow: hidden;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.25s ease,
              background 0.25s ease;
}
.cta-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.06);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.cta-btn:hover::before {
  transform: scaleX(1);
}
.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
}
.cta-btn--light:hover {
  box-shadow: 0 8px 24px rgba(255,255,255,0.12);
}
.cta-btn svg {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.cta-btn:hover svg {
  transform: translateX(5px);
}

/* ── Two-col bracket draw ───────────────────────────────────────── */
.two-col .brk {
  opacity: 0;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1) 0.1s,
              opacity 0.3s ease;
}
.two-col.sol-visible .brk {
  opacity: 1;
  transform: scaleY(1);
}

/* ── Footer link hover underline ────────────────────────────────── */
.foot-col a {
  position: relative;
  display: inline-block;
}
.foot-col a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: #fff;
  transition: width 0.3s ease;
}
.foot-col a:hover::after {
  width: 100%;
}

/* ── Hero title character shimmer ───────────────────────────────── */
.hero-title {
  background: linear-gradient(135deg, #ffffff 0%, #d8d8d8 50%, #ffffff 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: heroTitleShimmer 6s ease-in-out infinite;
}

@keyframes heroTitleShimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ── Pill hover transitions ─────────────────────────────────────── */
.pill {
  transition: background 0.22s ease, border-color 0.22s ease, transform 0.2s ease !important;
}
.pill:hover {
  transform: translateY(-1px);
}

/* ── Search icon pulse ──────────────────────────────────────────── */
.search {
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.search:hover {
  transform: scale(1.12);
  opacity: 0.8;
}

/* ── Hero bg subtle parallax ────────────────────────────────────── */
.hero-bg {
  will-change: transform;
  transition: transform 0.1s linear;
}

/* ── Cursor glow for CTA section ────────────────────────────────── */
.s-cta {
  position: relative;
  overflow: hidden;
}
.sol-cta-glow {
  position: absolute !important;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.04) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
  z-index: 0;
}
.s-cta .cta-title,
.s-cta .cta-sub,
.s-cta .cta-btns { position: relative; z-index: 1; }

/* ── Reduced motion: turn off all animations ────────────────────── */
@media (prefers-reduced-motion: reduce) {
  [data-sol-anim], .sol-rule-grow,
  .hero-title, .two-col .brk,
  .cta-btn, .s-situations .card { transition: none !important; animation: none !important; }
  [data-sol-anim], .sol-rule-grow { opacity: 1 !important; transform: none !important; }
}