:root {
  /* Updated Color Palette - Purple/Black/White/Blue Theme */
  --primary-purple: #8b5cf6;
  --light-purple: #a78bfa;
  --dark-purple: #7c3aed;
  --accent-blue: #3b82f6;
  --light-blue: #60a5fa;
  --dark-blue: #2563eb;
  --text-white: #ffffff;
  --text-light: #f8fafc;
  --text-muted: #94a3b8;
  --black-primary: #0f0f23;
  --black-secondary: #1e1e3f;
  --black-tertiary: #2d2d5a;
  --accent-green: #10b981;

  /* Background Colors */
  --dark-bg: #0f0f23;
  --darker-bg: #0a0a1a;
  --card-bg: #1e1e3f;
  --card-bg-hover: #2d2d5a;

  /* Gradients */
  --purple-gradient: linear-gradient(145deg, var(--dark-purple), var(--primary-purple), var(--light-purple));
  --blue-gradient: linear-gradient(145deg, var(--dark-blue), var(--accent-blue), var(--light-blue));
  --dark-gradient: linear-gradient(145deg, var(--darker-bg), var(--dark-bg), var(--black-secondary));
  --card-gradient: linear-gradient(145deg, rgba(30, 30, 63, 0.8), rgba(45, 45, 90, 0.9));
  --completed-gradient: linear-gradient(145deg, #065f46, var(--accent-green), #34d399);

  /* Effects */
  --glow-purple: 0 0 15px rgba(139, 92, 246, 0.5);
  --glow-blue: 0 0 15px rgba(59, 130, 246, 0.5);
  --glow-green: 0 0 15px rgba(16, 185, 129, 0.3);

  /* Shadows */
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-inner: inset 0 0 8px rgba(0, 0, 0, 0.4);

  /* Border Radius */
  --border-radius-sm: 6px;
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Poppins", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--dark-gradient);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("https://www.transparenttextures.com/patterns/carbon-fibre.png"), var(--dark-gradient);
  opacity: 0.4;
  z-index: -2;
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background-image: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noise"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noise)" opacity="0.05"/%3E%3C/svg%3E');
  animation: grain 8s steps(10) infinite;
  opacity: 0.15;
  z-index: -1;
  pointer-events: none;
}

@keyframes grain {
  0%,
  100% {
    transform: translate(0, 0);
  }
  10% {
    transform: translate(-5%, -10%);
  }
  20% {
    transform: translate(-15%, 5%);
  }
  30% {
    transform: translate(7%, -25%);
  }
  40% {
    transform: translate(-5%, 25%);
  }
  50% {
    transform: translate(-15%, 10%);
  }
  60% {
    transform: translate(15%, 0%);
  }
  70% {
    transform: translate(0%, 15%);
  }
  80% {
    transform: translate(3%, 35%);
  }
  90% {
    transform: translate(-10%, 10%);
  }
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(15, 15, 35, 0.9);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--dark-purple), var(--primary-purple));
  border-radius: 10px;
  transition: var(--transition);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--primary-purple), var(--light-purple));
}

a {
  text-decoration: none;
  color: var(--primary-purple);
  transition: var(--transition-fast);
  position: relative;
}

a:hover {
  color: var(--light-purple);
  text-shadow: var(--glow-purple);
  transform: translateY(-1px);
}

h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.3;
}

.particles-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.5;
}

.header {
  background: rgba(15, 15, 35, 0.92);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(139, 92, 246, 0.2);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  transition: var(--transition);
}

.header.scroll-down {
  transform: translateY(-100%);
}

.header.scroll-up {
  transform: translateY(0);
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.6);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.8rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 2rem;
  width: 100%;
  justify-content: space-between;
}

.logo-container {
  margin-right: 1.5rem;
  transform: translateZ(0);
  perspective: 1000px;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  display: inline-block;
  transform-style: preserve-3d;
  transition: var(--transition);
}

.logo-text {
  background: linear-gradient(90deg, var(--text-light), var(--primary-purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  transition: var(--transition);
}

.logo:hover .logo-text {
  text-shadow: var(--glow-purple);
  transform: translateZ(5px);
  background-size: 200% auto;
  animation: textShine 3s linear infinite;
}

@keyframes textShine {
  0% {
    background-position: 0% center;
  }
  100% {
    background-position: 200% center;
  }
}

.highlight {
  color: var(--primary-purple);
  position: relative;
  display: inline-block;
  z-index: 1;
  transition: var(--transition);
}

.highlight::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--purple-gradient);
  background-size: 200% 100%;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease-out, background-position 0.5s;
}

.logo:hover .highlight {
  color: var(--light-purple);
  text-shadow: var(--glow-purple);
}

.logo:hover .highlight::after {
  transform: scaleX(1);
  transform-origin: left;
  background-position: 100% 0;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-link {
  color: var(--text-light);
  font-weight: 600;
  position: relative;
  padding: 0.5rem 0.3rem;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  transition: var(--transition-fast);
  overflow: hidden;
}

.nav-link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(139, 92, 246, 0.1);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.3s ease-out;
  z-index: -1;
  border-radius: 4px;
}

.nav-link:hover {
  color: var(--primary-purple);
}

.nav-link:hover::before {
  transform: scaleY(1);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--purple-gradient);
  background-size: 200% 100%;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease-out, background-position 0.5s;
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
  background-position: 100% 0;
}

.nav-link.active {
  color: var(--primary-purple);
  text-shadow: 0 0 8px rgba(139, 92, 246, 0.3);
}

.nav-link.active::after {
  transform: scaleX(1);
}

.nav-link i {
  margin-right: 5px;
  transition: var(--transition-fast);
}

.nav-link:hover i {
  transform: translateY(-2px) scale(1.1);
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition-fast);
  padding: 0.3rem;
  border-radius: 6px;
}

.mobile-menu-btn:hover {
  color: var(--primary-purple);
  background: rgba(139, 92, 246, 0.1);
  transform: rotate(90deg);
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 320px;
  height: 100vh;
  background: rgba(15, 15, 35, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 2000;
  padding: 2rem;
  box-shadow: -5px 0 25px rgba(0, 0, 0, 0.5);
  transition: right 0.4s cubic-bezier(0.23, 1, 0.32, 1);
  overflow-y: auto;
  border-left: 1px solid rgba(139, 92, 246, 0.2);
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu-header {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 2rem;
}

.close-menu {
  background: transparent;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
  height: 40px;
  width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.close-menu:hover {
  color: var(--primary-purple);
  transform: rotate(90deg);
  background: rgba(139, 92, 246, 0.1);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-link {
  color: var(--text-light);
  font-size: 1.1rem;
  font-weight: 600;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid rgba(139, 92, 246, 0.1);
  transition: var(--transition);
  display: flex;
  align-items: center;
  border-radius: var(--border-radius-sm);
}

.mobile-nav-link i {
  margin-right: 12px;
  font-size: 1.2rem;
  min-width: 30px;
  text-align: center;
  transition: var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--primary-purple);
  background: rgba(139, 92, 246, 0.1);
  transform: translateX(5px);
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.2);
}

.mobile-nav-link:hover i {
  transform: scale(1.2);
}

.mobile-nav-link.active {
  border-left: 3px solid var(--primary-purple);
  padding-left: calc(1rem - 3px);
}

.challenges-section {
  max-width: 1300px;
  margin: 3rem auto;
  padding: 0 1.5rem;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.2), transparent);
  z-index: 0;
}

.bonus-title {
  position: relative;
  display: inline-block;
  font-size: 2.2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  background: var(--dark-bg);
  padding: 0 2rem;
  z-index: 1;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.bonus-title span {
  position: relative;
  display: inline-block;
  background: linear-gradient(to right, var(--dark-purple), var(--primary-purple), var(--light-purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: textShine 3s linear infinite;
  background-size: 200% auto;
}

.bonus-title span::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--purple-gradient);
  border-radius: 3px;
  box-shadow: var(--glow-purple);
}

.challenges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
  perspective: 1000px;
}

.challenge-card {
  background: var(--card-bg);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid rgba(139, 92, 246, 0.1);
  transform: translateZ(0);
  backface-visibility: hidden;
  position: relative;
  transform-style: preserve-3d;
}

.challenge-card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--purple-gradient);
  background-size: 300% 300%;
  z-index: -1;
  border-radius: calc(var(--border-radius-lg) + 2px);
  opacity: 0;
  transition: var(--transition);
  animation: gradientShift 6s linear infinite;
}

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

.challenge-card:hover {
  transform: translateY(-8px) scale(1.02) rotateX(2deg) rotateY(2deg);
  box-shadow: var(--shadow-lg), var(--glow-purple);
  background: var(--card-bg-hover);
}

.challenge-card:hover::before {
  opacity: 1;
}

.challenge-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
  position: relative;
  filter: saturate(0.8) contrast(1.1);
}

.challenge-card:hover .challenge-image {
  transform: scale(1.05);
  filter: brightness(1.1) saturate(1.1) contrast(1.1);
}

.challenge-content {
  padding: 1.5rem;
  position: relative;
}

.challenge-content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 10%;
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.3), transparent);
}

.challenge-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--primary-purple);
  letter-spacing: 0.5px;
  transition: var(--transition-fast);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.challenge-card:hover .challenge-title {
  transform: translateX(3px);
  text-shadow: var(--glow-purple);
}

.challenge-provider {
  color: rgba(248, 250, 252, 0.7);
  font-size: 0.95rem;
  margin-bottom: 1.2rem;
  font-style: italic;
}

.challenge-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
  background: rgba(15, 15, 35, 0.5);
  padding: 1rem;
  border-radius: var(--border-radius);
  border: 1px solid rgba(139, 92, 246, 0.1);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  transition: var(--transition);
}

.challenge-card:hover .challenge-details {
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transform: translateY(-5px);
}

.challenge-detail {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.detail-label {
  font-size: 0.8rem;
  color: rgba(248, 250, 252, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.detail-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-light);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
  transition: var(--transition);
}

.challenge-card:hover .detail-value {
  color: var(--light-purple);
}

.challenge-reward {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 1.5rem 0;
  padding: 1rem;
  background: rgba(59, 130, 246, 0.1);
  border-radius: var(--border-radius);
  border: 1px solid rgba(59, 130, 246, 0.2);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.challenge-reward::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, rgba(59, 130, 246, 0) 0%, rgba(59, 130, 246, 0.1) 50%, rgba(59, 130, 246, 0) 100%);
  z-index: 0;
  animation: shimmer 2s infinite;
}

.challenge-card:hover .challenge-reward {
  transform: scale(1.03);
  box-shadow: var(--glow-blue);
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.reward-label {
  font-size: 0.9rem;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
  z-index: 1;
}

.reward-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-blue);
  text-shadow: var(--glow-blue);
  z-index: 1;
  transition: var(--transition);
}

.challenge-card:hover .reward-value {
  transform: scale(1.1);
  text-shadow: 0 0 15px rgba(59, 130, 246, 0.6);
}

.challenge-btn {
  display: block;
  width: 100%;
  padding: 1rem;
  background: var(--blue-gradient);
  color: white;
  text-align: center;
  font-weight: 700;
  border-radius: var(--border-radius);
  letter-spacing: 1px;
  position: relative;
  overflow: hidden;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  font-size: 0.95rem;
  box-shadow: var(--shadow-sm), var(--glow-blue);
}

.challenge-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-slow);
}

.challenge-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), 0 0 15px rgba(59, 130, 246, 0.5);
  color: white;
  text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
}

.challenge-btn:hover::before {
  animation: shimmerBtn 1.5s infinite;
}

@keyframes shimmerBtn {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

.challenge-btn:active {
  transform: translateY(1px);
  box-shadow: var(--shadow-sm);
}

.winner-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: rgba(16, 185, 129, 0.1);
  border-radius: var(--border-radius);
  border: 1px solid rgba(16, 185, 129, 0.2);
  transition: var(--transition);
}

.challenge-card:hover .winner-info {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(16, 185, 129, 0.2);
}

.winner-label {
  font-size: 0.9rem;
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
}

.winner-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-green);
  text-shadow: 0 0 8px rgba(16, 185, 129, 0.3);
}

.completed-challenges {
  margin-top: 5rem;
}

.completed-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: var(--completed-gradient);
  color: white;
  padding: 0.5rem 1rem;
  font-weight: 700;
  font-size: 0.8rem;
  border-radius: 30px;
  letter-spacing: 1px;
  z-index: 10;
  box-shadow: var(--shadow-sm), var(--glow-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    box-shadow: var(--shadow-sm), var(--glow-green);
  }
  50% {
    transform: scale(1.05);
    box-shadow: var(--shadow-sm), 0 0 15px rgba(16, 185, 129, 0.5);
  }
  100% {
    transform: scale(1);
    box-shadow: var(--shadow-sm), var(--glow-green);
  }
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  background: rgba(15, 15, 35, 0.6);
  border-radius: var(--border-radius-lg);
  border: 1px dashed rgba(139, 92, 246, 0.2);
}

.empty-state i {
  font-size: 3rem;
  color: rgba(139, 92, 246, 0.6);
  margin-bottom: 1rem;
  display: block;
  animation: floatIcon 3s ease-in-out infinite;
}

@keyframes floatIcon {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.empty-state h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--primary-purple);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.empty-state p {
  color: rgba(248, 250, 252, 0.7);
}

.footer {
  background: rgba(15, 15, 35, 0.97);
  border-top: 1px solid rgba(139, 92, 246, 0.2);
  padding: 3rem 0 2rem;
  position: relative;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--primary-purple), transparent);
  opacity: 0.3;
}

.footer-content {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
}

.footer-links-column {
  min-width: 160px;
}

.footer-links-column h3 {
  color: var(--primary-purple);
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

.footer-links-column h3::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--purple-gradient);
  border-radius: 2px;
}

.footer-link {
  display: block;
  color: rgba(248, 250, 252, 0.7);
  margin-bottom: 1rem;
  transition: var(--transition-fast);
  font-size: 0.95rem;
}

.footer-link:hover {
  color: var(--primary-purple);
  transform: translateX(5px);
}

.footer-link i {
  margin-right: 8px;
  transition: var(--transition-fast);
}

.footer-link:hover i {
  transform: scale(1.2);
  color: var(--primary-purple);
}

.gamble-aware {
  margin: 2rem 0;
  padding: 1.5rem;
  border-radius: var(--border-radius);
  background: rgba(139, 92, 246, 0.05);
  border: 1px solid rgba(139, 92, 246, 0.1);
}

.gamble-aware-text {
  color: rgba(248, 250, 252, 0.7);
  font-size: 0.9rem;
  text-align: center;
}

.gamble-aware-link {
  color: var(--primary-purple);
  font-weight: 600;
  text-decoration: underline;
}

.footer-text {
  text-align: center;
  color: rgba(248, 250, 252, 0.5);
  font-size: 0.9rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(139, 92, 246, 0.1);
}

/* ======= RESPONSIVE STYLES ======= */

@media (max-width: 1200px) {
  .challenges-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
  }

  .footer-links {
    gap: 2rem;
  }
}

@media (max-width: 992px) {
  .nav-links {
    gap: 1rem;
  }

  .nav-link {
    font-size: 0.9rem;
  }

  .bonus-title {
    font-size: 1.8rem;
  }

  .challenges-section {
    margin: 2rem auto;
  }

  .section-title {
    margin-bottom: 2rem;
  }
}

@media (max-width: 768px) {
  .nav-container {
    padding: 0.8rem 1.5rem;
  }

  .logo {
    font-size: 1.5rem;
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .challenges-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.2rem;
  }

  .challenge-title {
    font-size: 1.3rem;
  }

  .challenge-details {
    padding: 0.8rem;
  }

  .detail-value {
    font-size: 1rem;
  }

  .reward-value {
    font-size: 1.5rem;
  }

  .challenge-btn {
    padding: 0.9rem;
    font-size: 0.85rem;
  }

  .footer-links {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-links-column {
    width: 100%;
  }
}

@media (max-width: 576px) {
  .challenges-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .bonus-title {
    font-size: 1.5rem;
    padding: 0 1rem;
  }

  .section-title {
    margin-bottom: 1.5rem;
  }

  .challenge-content {
    padding: 1.2rem;
  }

  .challenge-reward {
    padding: 0.8rem;
  }

  .footer {
    padding: 2rem 0 1.5rem;
  }

  .footer-content {
    padding: 0 1.5rem;
  }

  .gamble-aware {
    padding: 1.2rem;
  }
}