/* ============================================
   Varuna Sentinels - Site-wide Animations v1.0
   Auto-applied via vs-animations.js
   Theme: #335596 (navy), #74c5b5 (teal)
   ============================================ */

/* ===== Reduced motion: disable ALL animations ===== */
@media (prefers-reduced-motion: reduce) {
  .vs-anim, .vs-anim-done,
  .vs-hover-lift, .vs-hover-glow,
  .vs-stagger-item {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ===== Scroll-triggered entrance states ===== */
.vs-anim {
  opacity: 0;
  will-change: opacity, transform;
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.vs-anim-done {
  opacity: 1 !important;
  transform: translate(0, 0) scale(1) !important;
}

/* Directional starting positions */
.vs-anim-up    { transform: translateY(40px); }
.vs-anim-down  { transform: translateY(-40px); }
.vs-anim-left  { transform: translateX(-50px); }
.vs-anim-right { transform: translateX(50px); }
.vs-anim-scale { transform: scale(0.92); }
.vs-anim-fade  { transform: translateY(15px); }

/* Slower variant for hero / large sections */
.vs-anim-slow {
  transition-duration: 1s;
}

/* ===== Staggered children ===== */
.vs-stagger-item {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.vs-stagger-item.vs-anim-done {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Hover enhancements (auto-applied) ===== */

/* Card lift on hover */
.vs-hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.vs-hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 36px rgba(51, 85, 150, 0.15);
}

/* Image zoom on hover */
.vs-hover-zoom {
  overflow: hidden;
}
.vs-hover-zoom img {
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.vs-hover-zoom:hover img {
  transform: scale(1.06);
}

/* Link underline slide */
.vs-hover-underline {
  position: relative;
  display: inline-block;
}
.vs-hover-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #335596, #74c5b5);
  transition: width 0.35s ease;
  border-radius: 1px;
}
.vs-hover-underline:hover::after {
  width: 100%;
}

/* Button press effect */
.vs-hover-press {
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.vs-hover-press:active {
  transform: scale(0.97);
}

/* ===== Navbar scroll animation ===== */
header.vs-nav-scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15) !important;
  transition: box-shadow 0.3s ease;
}
header.vs-nav-scrolled .navbar {
  padding-top: 6px !important;
  padding-bottom: 6px !important;
  transition: padding 0.3s ease;
}

/* ===== Footer reveal ===== */
footer.vs-anim {
  transform: translateY(30px);
}

/* ===== Heading underline animation ===== */
.vs-heading-line {
  position: relative;
  display: inline-block;
}
.vs-heading-line::after {
  content: '';
  display: block;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, #74c5b5, #335596);
  margin-top: 10px;
  border-radius: 2px;
  transition: width 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.vs-heading-line.vs-anim-done::after {
  width: 60px;
}

/* ===== Counter number animation ===== */
.vs-counter {
  display: inline-block;
  transition: opacity 0.4s ease;
}

/* ===== Blog card / content card hover ===== */
.blog-card,
.card {
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.blog-card:hover,
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(51, 85, 150, 0.12);
}

/* ===== Image card entrance ===== */
.card-image img,
.blog-card img {
  transition: transform 0.5s ease, filter 0.5s ease;
}
.blog-card:hover .card-image img,
.blog-card:hover img {
  transform: scale(1.04);
}

/* ===== Footer link hover ===== */
footer a {
  transition: color 0.25s ease, transform 0.25s ease;
}
footer a:hover {
  color: #74c5b5 !important;
}

/* ===== Social icon pulse on hover ===== */
footer ul.social li a,
.contact-social-section ul.social li a {
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}
footer ul.social li a:hover,
.contact-social-section ul.social li a:hover {
  transform: translateY(-4px) scale(1.08);
}

/* ===== Smooth scroll indicator ===== */
@keyframes vs-scroll-hint {
  0%, 100% { transform: translateY(0); opacity: 0.6; }
  50% { transform: translateY(8px); opacity: 1; }
}

/* ===== Subtle background parallax for sections ===== */
.vs-parallax-bg {
  transition: background-position 0.1s linear;
}

/* ===== Loading skeleton shimmer ===== */
@keyframes vs-shimmer-load {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.vs-shimmer {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: vs-shimmer-load 1.5s ease infinite;
}

/* ===== Page load fade-in ===== */
@keyframes vs-page-enter {
  from { opacity: 0; }
  to   { opacity: 1; }
}
body {
  animation: vs-page-enter 0.4s ease-out;
}

/* ===== Focus ring for accessibility ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid #74c5b5;
  outline-offset: 2px;
  border-radius: 4px;
}