/* Global Resets & Layout */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  overflow-x: hidden !important;
  width: 100%;
  position: relative;
  margin: 0;
  padding: 0;
  background-color: #004d40;
}

/* --- Minimalist Custom Scrollbar --- */
::-webkit-scrollbar {
  width: 6px; /* Thinner */
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2); /* Subtle light thumb on dark BG */
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.4);
}

/* For Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

body {
  background-color: var(--clr-white);
  color: var(--clr-text-main);
  font-family: var(--font-body);
  font-size: clamp(14px, 1vw, 16px);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  opacity: 1; /* Ensure immediate visibility */
  
  /* Disabling text selection */
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

/* Re-enabling selection for form inputs */
input,
textarea,
select {
  user-select: text;
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
}

body.is-loaded {
  opacity: 1;
}

html.is-loading,
body.is-loading {
  overflow: hidden !important;
  height: 100vh !important;
}

body.reveal-active #loader-overlay {
  pointer-events: none;
}


h1,
h2,
h3,
h4,
.font-heading {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--clr-text-main);
}

/* Typography Helpers */
.text-muted {
  color: var(--clr-text-muted);
}
.text-accent {
  color: var(--clr-accent);
}
.text-xs {
  font-size: 0.825rem;
}

/* Layout Utilities */
.section-padding {
  padding: clamp(var(--space-lg), 12vw, var(--space-xl)) 0;
}

body:not(.home-page):not(.elearning-dashboard-body) main {
  padding-top: clamp(100px, 15vh, 140px);
}

body:not(.home-page) main > section.section-padding:first-child,
body:not(.home-page) main > section.leaderboard-header:first-child {
  padding-top: 0 !important;
}

.container-fluid-custom {
  padding: 0 clamp(1.5rem, 8vw, 6rem);
}

.transition-premium {
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

img,
svg {
  max-width: 100%;
  height: auto;
}

@media (max-width: 576px) {
  .section-padding {
    padding: var(--space-lg) 0;
  }
}

/* --- Scroll Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(60px) scale(0.96);
  transition:
    opacity 1.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.4s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

.reveal-left {
  opacity: 0;
  transform: translateX(-100px) scale(0.98);
  transition:
    opacity 1.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.4s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

.reveal-right {
  opacity: 0;
  transform: translateX(100px) scale(0.98);
  transition:
    opacity 1.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.4s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

.reveal-zoom {
  opacity: 0;
  transform: scale(0.9) translateY(40px);
  transition:
    opacity 1.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.4s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

.reveal.active,
.reveal-left.active,
.reveal-right.active,
.reveal-zoom.active,
.reveal-up.active {
  opacity: 1;
  transform: translate(0, 0) scale(1);
}

.reveal-up {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 1.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Staggered Delay Helpers */
.reveal-delay-1 {
  transition-delay: 150ms !important;
}
.reveal-delay-2 {
  transition-delay: 300ms !important;
}
.reveal-delay-3 {
  transition-delay: 450ms !important;
}

/* Cinematic Fade-In for Hero Elements */
@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.hero-content {
  opacity: 0;
  transform: translateY(40px);
  transition: all 1.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Section to Section Transition (Smooth Flow) */
section {
  position: relative;
  overflow: hidden;
}

section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle at center,
    rgba(255, 255, 255, 0.03) 0%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 1;
}

@media (min-width: 992px) {
  .col-lg-2-4 {
    flex: 0 0 20% !important;
    max-width: 20% !important;
  }
}