:root {
  /* Dark Mode (Default) */
  --bg-color: #0A0A14;
  --primary-color: #9F55FF;
  --secondary-color: #5D3FD3;
  --accent-color: #00D1FF;
  --text-color: #C0C0D0;
  --header-color: #FFFFFF;
  --glass-bg: rgba(15, 15, 30, 0.6);
  --glass-border: rgba(159, 85, 255, 0.2);
  --glow-shadow: 0 0 20px rgba(159, 85, 255, 0.6), 0 0 35px rgba(93, 63, 211, 0.4);
}

html {
  scroll-behavior: smooth;
}

body.light-mode {
  /* Light Mode */
  --bg-color: #F0F2F5;
  --primary-color: #6A11CB;
  --secondary-color: #2575FC;
  --accent-color: #007BFF;
  --text-color: #333333;
  --header-color: #000000;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.1);
  --glow-shadow: 0 0 20px rgba(106, 17, 203, 0.2);
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: 'Poppins', sans-serif;
  transition: background-color 0.3s, color 0.3s;
  font-synthesis-weight: none;
}

#particles-js {
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: -1;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Space Grotesk', sans-serif;
  color: var(--header-color);
}

.navbar {
  background: var(--glass-bg);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid var(--glass-border);
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.navbar-toggler {
  border-color: var(--primary-color);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(159, 85, 255, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

body.light-mode .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(106, 17, 203, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}


.navbar-brand,
.nav-link {
  color: var(--header-color) !important;
  transition: color 0.3s, text-shadow 0.3s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-color) !important;
  text-shadow: 0 0 10px var(--accent-color);
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  padding: 2.5rem;
  transition: transform 0.3s ease-out, box-shadow 0.3s ease-out, background-color 0.3s;
}

.glass-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: var(--glow-shadow);
}

.btn-primary-web3 {
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border: none;
  color: white;
  padding: 14px 35px;
  border-radius: 50px;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
  transition: transform 0.3s, box-shadow 0.3s;
  box-shadow: 0 0 15px rgba(159, 85, 255, 0.5);
}

body.light-mode .btn-primary-web3 {
  box-shadow: 0 0 15px rgba(106, 17, 203, 0.3);
}

.btn-primary-web3:hover {
  transform: scale(1.05);
  box-shadow: var(--glow-shadow);
  color: white;
}

.hero-left-col h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.2;
}

.hero-left-col h2 {
  font-size: clamp(1rem, 3vw, 1.25rem);
  color: var(--accent-color);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.span-col {
  color: var(--primary-color);
  text-shadow: 0 0 15px var(--primary-color);
}

.heading h2 {
  font-size: clamp(2rem, 5vw, 3rem);
}

.form-control {
  background-color: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  color: var(--text-color);
  padding: 0.75rem 1rem;
}

.form-control:focus {
  background-color: rgba(0, 0, 0, 0.3);
  border-color: var(--primary-color);
  color: var(--header-color);
  box-shadow: 0 0 10px var(--primary-color);
}

.form-control::placeholder {
  color: var(--text-color);
  opacity: 0.7;
}

body.light-mode .form-control {
  background-color: rgba(255, 255, 255, 0.8);
  border-color: #ddd;
  color: #333;
}

body.light-mode .form-control:focus {
  background-color: #fff;
  border-color: var(--primary-color);
  color: #000;
}


.badge {
  font-family: 'Space Grotesk', sans-serif;
  padding: 0.5em 0.9em;
  font-size: 0.8rem;
}

.theme-toggle-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  width: 45px;
  height: 45px;
  padding: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  margin-left: 1rem;
}

.theme-toggle-btn:hover {
  border-color: var(--accent-color);
  transform: rotate(15deg) scale(1.1);
  box-shadow: 0 0 10px var(--accent-color);
}

.theme-toggle-btn svg {
  width: 100%;
  height: 100%;
  color: var(--accent-color);
  transition: transform 0.3s ease-out;
}

#moon-icon {
  display: none;
}

.social-icon {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.social-icon:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
  transform: translateY(-5px) scale(1.1);
  box-shadow: 0 0 15px var(--primary-color);
}

.social-icon svg {
  width: 22px;
  height: 22px;
  color: var(--accent-color);
  transition: color 0.3s ease;
}

.social-icon:hover svg {
  color: white;
}

.hero-socials {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2.5rem;
}

/* Smooth reveal animations */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s cubic-bezier(.22, .61, .36, 1), transform 0.6s cubic-bezier(.22, .61, .36, 1);
  will-change: opacity, transform;
}

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

/* Global media assets */
img,
video {
  max-width: 100%;
  height: auto;
}

/* Accessibility focus styles */
a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.form-control:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Section spacing helpers */
section {
  scroll-margin-top: 90px;
}

/* Mobile-first refinements */
@media (max-width: 991.98px) {
  .navbar {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(15, 15, 30, 0.85);
  }

  .glass-card {
    padding: 1.5rem;
  }

  .hero-socials {
    gap: 0.75rem;
  }

  .btn-primary-web3 {
    padding: 12px 28px;
  }
}

@media (max-width: 575.98px) {
  .btn-primary-web3 {
    width: 100%;
  }

  .social-icon {
    width: 40px;
    height: 40px;
  }

  .glass-card:hover {
    transform: translateY(-6px) scale(1.01);
  }
}

/* Reduce motion preference */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* Button ripple micro-interaction */
.btn-primary-web3 {
  position: relative;
  overflow: hidden;
}

.btn-primary-web3 .ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  animation: ripple 650ms ease-out;
  background: rgba(255, 255, 255, 0.35);
  pointer-events: none;
  width: 20px;
  height: 20px;
  opacity: 0.8;
}

@keyframes ripple {
  to {
    transform: scale(12);
    opacity: 0;
  }
}

.btn-primary-web3:active {
  transform: scale(0.97);
}

/* Skeleton loader */
.skeleton-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  padding: 1.5rem;
}

.skeleton {
  display: block;
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 8px;
}

.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
  animation: shimmer 1.25s infinite;
}

@keyframes shimmer {
  100% {
    transform: translateX(100%);
  }
}

.skeleton-title {
  height: 22px;
  width: 60%;
  margin-bottom: 12px;
}

.skeleton-text {
  height: 14px;
  width: 100%;
  margin-bottom: 8px;
}

.skeleton-badge {
  height: 20px;
  width: 80px;
  margin-right: 8px;
  display: inline-block;
  border-radius: 999px;
}

/* 3D Mobile Hamburger */
.navbar-toggler {
  position: relative;
  border: none;
  background: transparent;
  box-shadow: none;
  padding: 0;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  margin-left: 12px;
}

.navbar-toggler:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 209, 255, 0.3);
}

.hamburger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  width: 26px;
  height: 18px;
  perspective: 400px;
}

.hamburger .bar {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--primary-color);
  border-radius: 3px;
  transition: transform 0.35s cubic-bezier(.2, .8, .2, 1), opacity 0.25s ease, background 0.3s;
  transform-origin: center;
  box-shadow: 0 0 12px rgba(159, 85, 255, 0.6);
}

/* Expanded state (turn into cross) */
.navbar-toggler[aria-expanded="true"] .hamburger .bar:nth-child(1) {
  transform: translateZ(2px) translateY(8px) rotate(45deg);
}

.navbar-toggler[aria-expanded="true"] .hamburger .bar:nth-child(2) {
  opacity: 0;
  transform: translateZ(0px) scaleX(0.6);
}

.navbar-toggler[aria-expanded="true"] .hamburger .bar:nth-child(3) {
  transform: translateZ(2px) translateY(-8px) rotate(-45deg);
}

/* Light mode adjustments */
body.light-mode .navbar-toggler {
  background: transparent;
}

body.light-mode .hamburger .bar {
  background: var(--secondary-color);
  box-shadow: 0 0 10px rgba(106, 17, 203, 0.35);
}

/* Ad placeholder */
.ad-slot {
  border: 1px dashed var(--glass-border);
  border-radius: 12px;
  padding: 24px;
  background: rgba(0, 0, 0, 0.15);
  text-align: center;
  color: var(--text-color);
  min-height: 120px;
}

body.light-mode .ad-slot {
  background: rgba(0, 0, 0, 0.05);
}

/* Subscribe form */
.subscribe-card {
  display: block;
}

.subscribe-input {
  height: 48px;
}

#subscribeMessage {
  display: inline-block;
  margin-top: 6px;
  color: var(--accent-color);
}

/* Share button group */
.share-group {
  display: flex;
  gap: 10px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--header-color);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}

.share-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-shadow);
  border-color: var(--primary-color);
  color: #fff;
}