@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&family=Orbitron:wght@500;700;900&family=Space+Grotesk:wght@500;700&display=swap');

:root {
  /* Color Tokens */
  --bg-dark: #07090e;
  --bg-card: rgba(15, 22, 36, 0.75);
  --bg-card-hover: rgba(22, 32, 52, 0.85);
  --bg-header: rgba(11, 15, 25, 0.85);
  
  --solana-purple: #9945FF;
  --solana-green: #14F195;
  --solana-cyan: #00F0FF;
  --gold-accent: #FFB800;
  --danger-red: #FF4D4D;
  --muted-text: #94A3B8;
  --light-text: #F8FAFC;
  
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glow-purple: rgba(153, 69, 255, 0.35);
  --border-glow-green: rgba(20, 241, 149, 0.35);
  
  --font-main: 'Inter', system-ui, sans-serif;
  --font-heading: 'Orbitron', sans-serif;
  --font-subheading: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --shadow-neon-purple: 0 0 25px rgba(153, 69, 255, 0.25);
  --shadow-neon-green: 0 0 25px rgba(20, 241, 149, 0.25);
  --shadow-gold: 0 0 25px rgba(255, 184, 0, 0.3);
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
}

/* Light theme overrides (optional contrast mode) */
[data-theme="light"] {
  --bg-dark: #F1F5F9;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: rgba(255, 255, 255, 1);
  --bg-header: rgba(255, 255, 255, 0.95);
  --light-text: #0F172A;
  --muted-text: #475569;
  --border-glass: rgba(15, 23, 42, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(153, 69, 255, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(20, 241, 149, 0.10) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(0, 240, 255, 0.05) 0%, transparent 60%);
  background-attachment: fixed;
  color: var(--light-text);
  font-family: var(--font-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Typography Utilities */
h1, h2, h3, .font-heading {
  font-family: var(--font-heading);
  letter-spacing: 0.03em;
}

.gradient-text-solana {
  background: linear-gradient(135deg, var(--solana-purple) 0%, var(--solana-cyan) 50%, var(--solana-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.gradient-text-gold {
  background: linear-gradient(135deg, #FFF 0%, var(--gold-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.mono {
  font-family: var(--font-mono);
}

/* Header & Nav */
header.cyber-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-header);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  padding: 1rem 1.5rem;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--light-text);
  font-weight: 700;
  font-size: 1.35rem;
}

.logo-img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid var(--border-glow-purple);
  box-shadow: var(--shadow-neon-purple);
  transition: transform 0.25s ease;
}

.logo-brand:hover .logo-img {
  transform: scale(1.08) rotate(-3deg);
  box-shadow: 0 0 25px rgba(20, 241, 149, 0.4);
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--solana-purple), var(--solana-green));
  display: grid;
  place-items: center;
  color: #000;
  font-size: 1.2rem;
  box-shadow: var(--shadow-neon-purple);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.cyber-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.cyber-btn-primary {
  background: linear-gradient(135deg, var(--solana-purple), #7928CA);
  color: #FFF;
  box-shadow: var(--shadow-neon-purple);
}

.cyber-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(153, 69, 255, 0.45);
}

.cyber-btn-accent {
  background: linear-gradient(135deg, #10B981, var(--solana-green));
  color: #052e16;
  font-weight: 700;
  box-shadow: var(--shadow-neon-green);
}

.cyber-btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(20, 241, 149, 0.5);
}

.cyber-btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: var(--light-text);
  border: 1px solid var(--border-glass);
}

.cyber-btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.cyber-btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.glass-card:hover {
  border-color: rgba(153, 69, 255, 0.3);
}

.glass-card-active {
  border: 1px solid var(--solana-green);
  box-shadow: var(--shadow-neon-green);
}

/* Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-badge-active {
  background: rgba(20, 241, 149, 0.15);
  color: var(--solana-green);
  border: 1px solid rgba(20, 241, 149, 0.4);
}

.status-badge-solved {
  background: rgba(255, 77, 77, 0.15);
  color: var(--danger-red);
  border: 1px solid rgba(255, 77, 77, 0.4);
}

.status-badge-pending {
  background: rgba(255, 184, 0, 0.15);
  color: var(--gold-accent);
  border: 1px solid rgba(255, 184, 0, 0.4);
}

.dot-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
  100% { opacity: 1; transform: scale(1); }
}

/* Layout Containers */
main.main-content {
  flex: 1;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.hero-section {
  text-align: center;
  padding: 2.5rem 1rem 1rem;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.2rem;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--muted-text);
  max-width: 720px;
  margin: 0 auto 2rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.2rem;
  margin-top: 1.5rem;
}

.stat-card {
  text-align: center;
  padding: 1.2rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--solana-green);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--muted-text);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Security Alert Banner */
.security-alert {
  background: rgba(255, 77, 77, 0.1);
  border: 1px solid rgba(255, 77, 77, 0.35);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 14px;
}

.security-alert-icon {
  font-size: 1.5rem;
  color: var(--danger-red);
}

/* FAQ & Accordion */
.accordion-item {
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  margin-bottom: 0.8rem;
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
}

.accordion-header {
  width: 100%;
  padding: 1.2rem 1.5rem;
  background: transparent;
  border: none;
  color: var(--light-text);
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.accordion-header:hover {
  background: rgba(255, 255, 255, 0.04);
}

.accordion-content {
  padding: 0 1.5rem 1.2rem;
  color: var(--muted-text);
  display: none;
}

.accordion-item.active .accordion-content {
  display: block;
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-icon {
  transition: transform 0.3s ease;
}

/* Image & Media */
.puzzle-img-wrapper {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--border-glass);
  margin: 1.5rem 0;
  background: #000;
}

.puzzle-img-wrapper img {
  width: 100%;
  max-width: 700px;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: var(--radius-md);
  transition: transform 0.3s ease;
}

.watermark-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  user-select: none;
}

.watermark-text {
  transform: rotate(-30deg);
  color: rgba(255, 255, 255, 0.15);
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 3vw, 2.2rem);
  font-weight: 900;
  text-align: center;
  line-height: 1.4;
}

/* Copy box */
.copy-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 0.8rem 1.2rem;
  gap: 12px;
  word-break: break-all;
}

.copy-text {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--solana-green);
}

/* Footer */
footer.cyber-footer {
  border-top: 1px solid var(--border-glass);
  background: var(--bg-header);
  padding: 2rem 1.5rem;
  margin-top: auto;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

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

.social-link {
  color: var(--muted-text);
  font-size: 1.3rem;
  transition: color 0.2s;
}

.social-link:hover {
  color: var(--solana-green);
}

/* Toast Notice */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #10B981;
  color: #000;
  padding: 12px 20px;
  border-radius: 10px;
  font-weight: 700;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  z-index: 1000;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
  pointer-events: none;
}

.toast-notice.show {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  main.main-content {
    padding: 1.5rem 1rem;
  }
  
  .header-container {
    flex-direction: column;
    gap: 12px;
  }
  
  .footer-container {
    flex-direction: column;
    text-align: center;
  }
}