/* ============================================================
   DUMINDA CONSTRUCTIONS � SMOOTH ANIMATIONS LAYER
   animations.css � imported by all HTML pages
   ============================================================ */

/* --- 1. CSS Custom Properties -------------------------------- */
:root {
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast: 0.35s;
  --dur-base: 0.55s;
  --dur-slow: 0.85s;
}

/* --- 2. Preloader smooth fade-out ---------------------------- */
#preloader {
  transition: opacity 0.6s var(--ease-out-expo),
              visibility 0.6s var(--ease-out-expo);
}
#preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* --- 3. Header slide-down on load ---------------------------- */
#header {
  animation: headerSlideDown 0.7s var(--ease-out-expo) both;
}
@keyframes headerSlideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to   { transform: translateY(0);     opacity: 1; }
}

/* Navbar link underline sweep */
#navbar li a {
  position: relative;
}
#navbar li a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background: #f8b526;
  transition: width 0.35s var(--ease-out-expo);
}
#navbar li a:hover::after,
#navbar li a.active::after {
  width: 100%;
}

/* --- 4. WhatsApp Button pulse ring --------------------------- */
#WAButton i {
  animation: waPulse 2.8s ease-in-out infinite;
}
@keyframes waPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(248,181,38,0.6), 1px 2px 10px rgba(0,0,0,0.3); }
  50%       { box-shadow: 0 0 0 14px rgba(248,181,38,0), 1px 2px 10px rgba(0,0,0,0.3); }
}

/* --- 5. Hero / Welcome Section ------------------------------- */
.overlay h4 {
  animation: heroTitle 1s var(--ease-out-expo) 0.4s both;
}
.overlay h3 {
  animation: heroSub 1s var(--ease-out-expo) 0.7s both;
}
@keyframes heroTitle {
  from { opacity: 0; transform: translateY(40px); filter: blur(6px); }
  to   { opacity: 1; transform: translateY(0);    filter: blur(0); }
}
@keyframes heroSub {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: translateX(0); }
}
.overlay .square-frame img {
  animation: frameFadeIn 1.2s var(--ease-out-expo) 0.2s both;
}
@keyframes frameFadeIn {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* --- 6. Scroll-Reveal Base Classes --------------------------- */
.reveal {
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease-out-expo),
              transform var(--dur-slow) var(--ease-out-expo),
              filter var(--dur-slow) var(--ease-out-expo);
  will-change: opacity, transform;
}
.reveal.reveal-visible {
  opacity: 1 !important;
  transform: none !important;
  filter: none !important;
}
.reveal-up    { transform: translateY(50px); }
.reveal-down  { transform: translateY(-50px); }
.reveal-left  { transform: translateX(-60px); }
.reveal-right { transform: translateX(60px); }
.reveal-scale { transform: scale(0.88); }
.reveal-blur  { filter: blur(8px); transform: translateY(30px); }

/* Stagger delays */
.reveal-stagger > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger > *:nth-child(2) { transition-delay: 0.15s; }
.reveal-stagger > *:nth-child(3) { transition-delay: 0.25s; }
.reveal-stagger > *:nth-child(4) { transition-delay: 0.35s; }
.reveal-stagger > *:nth-child(5) { transition-delay: 0.45s; }
.reveal-stagger > *:nth-child(6) { transition-delay: 0.55s; }

/* --- 7. Advantage Cards -------------------------------------- */
.adv-grid .card {
  transition: transform 0.4s var(--ease-spring),
              box-shadow 0.4s ease,
              background-color 0.3s ease !important;
}
.adv-grid .card:hover {
  transform: translateY(-8px) scale(1.03) !important;
  box-shadow: 0 16px 40px rgba(0,0,0,0.35) !important;
  background-color: #3d3d3d !important;
}
.adv-grid .card .square {
  transition: transform 0.4s var(--ease-spring), background-color 0.3s ease;
}
.adv-grid .card:hover .square {
  transform: rotate(45deg) scale(1.3);
  background-color: #f8b526;
}

/* --- 8. About Intro Section ---------------------------------- */
.aboutblock .pic1 {
  transition: transform 0.6s var(--ease-out-expo), box-shadow 0.4s ease;
}
.aboutblock .pic1:hover {
  transform: scale(1.03);
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}
.aboutblock .lm {
  transition: background-color 0.3s ease,
              transform 0.35s var(--ease-spring),
              box-shadow 0.3s ease !important;
}
.aboutblock .lm:hover {
  transform: translateY(-3px) scale(1.06) !important;
  box-shadow: 0 8px 24px rgba(248,181,38,0.4) !important;
}
.exp {
  transition: transform 0.4s var(--ease-spring), box-shadow 0.4s ease;
}
.exp:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.3);
}

/* --- 9. Buttons -------------------------------------------- */
.btn {
  transition: background-color 0.3s ease,
              transform 0.35s var(--ease-spring),
              box-shadow 0.3s ease !important;
  overflow: hidden;
  position: relative;
}
.btn:hover {
  transform: translateY(-3px) scale(1.04) !important;
  box-shadow: 0 8px 24px rgba(248,181,38,0.35) !important;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.12);
  transform: translateX(-101%);
  transition: transform 0.4s var(--ease-out-expo);
}
.btn:hover::before {
  transform: translateX(0);
}

/* --- 10. Services Carousel items ---------------------------- */
.services-item {
  transition: transform 0.45s var(--ease-spring),
              opacity 0.45s ease,
              box-shadow 0.4s ease !important;
}
.services-item:not(.center):hover {
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}
.services-item.center:hover {
  transform: scale(1.05) !important;
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
}

/* --- 11. Footer links & icons ------------------------------- */
.section-footer a {
  transition: color 0.3s ease, transform 0.3s ease;
  display: inline-block;
}
.section-footer a:hover {
  color: #f8b526;
  transform: translateX(4px);
}
.section-footer .col:first-child p a i {
  transition: transform 0.35s var(--ease-spring), color 0.3s ease;
  display: inline-block;
}
.section-footer .col:first-child p a:hover i {
  transform: scale(1.3) rotate(-5deg);
  color: #f8b526;
}

/* --- 12. Navbar contact button ------------------------------ */
#navbar button {
  overflow: hidden;
  position: relative;
}
#navbar button::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.18);
  border-radius: inherit;
  transform: scale(0);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.5s var(--ease-out-expo), opacity 0.4s ease;
}
#navbar button:active::after {
  transform: scale(2.5);
  opacity: 1;
  transition: none;
}

/* --- 13. Shimmer text effect -------------------------------- */
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}
.shimmer-text {
  background: linear-gradient(90deg, #f8b526 25%, #ffe08a 50%, #f8b526 75%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 2.5s linear infinite;
}

/* --- 14. Smooth scroll -------------------------------------- */
html {
  scroll-behavior: smooth;
}

/* --- 15. Reduced motion fallback ---------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; filter: none; }
}