/* HelixQuest — Cyberpunk Theme */
:root {
  --bg-deep: #0A0A0F;
  --bg-surface: #111118;
  --bg-card: #161622;
  --cyan: #00F0FF;
  --cyan-dim: #00F0FF33;
  --cyan-glow: #00F0FF66;
  --purple: #A020F0;
  --purple-dim: #A020F033;
  --purple-glow: #A020F066;
  --text: #E8E8F0;
  --text-dim: #8888AA;
  --text-muted: #555570;
  --border: #222235;
  --radius: 12px;
}

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

body {
  background: var(--bg-deep);
  color: var(--text);
  font-family: 'Space Grotesk', sans-serif;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Overlays */
.noise-overlay {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

.grid-overlay {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

/* Typography */
.text-glow-cyan { color: var(--cyan); text-shadow: 0 0 20px var(--cyan-glow), 0 0 40px var(--cyan-dim); }
.text-glow-purple { color: var(--purple); text-shadow: 0 0 20px var(--purple-glow), 0 0 40px var(--purple-dim); }

.section-tag {
  display: inline-block;
  font-family: 'Orbitron', monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--cyan);
  border: 1px solid var(--cyan-dim);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
  text-shadow: 0 0 10px var(--cyan-glow);
}

.section-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 540px;
  line-height: 1.7;
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 40px;
  gap: 60px;
  z-index: 1;
}

.helix-glow-left {
  position: absolute;
  top: 10%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--cyan-dim) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(80px);
  animation: pulse-slow 6s ease-in-out infinite;
}

.helix-glow-right {
  position: absolute;
  bottom: 10%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--purple-dim) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(80px);
  animation: pulse-slow 6s ease-in-out infinite 3s;
}

@keyframes pulse-slow {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.1); }
}

.hero-content { max-width: 600px; position: relative; z-index: 2; }

.hero-badge {
  font-family: 'Orbitron', monospace;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--bg-deep);
  background: var(--cyan);
  display: inline-block;
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 32px;
  box-shadow: 0 0 20px var(--cyan-glow), 0 0 40px var(--cyan-dim);
  animation: badge-glow 3s ease-in-out infinite;
}

@keyframes badge-glow {
  0%, 100% { box-shadow: 0 0 20px var(--cyan-glow), 0 0 40px var(--cyan-dim); }
  50% { box-shadow: 0 0 30px var(--cyan-glow), 0 0 60px var(--cyan-dim), 0 0 80px var(--cyan-dim); }
}

.hero-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 24px;
}

.title-line { display: block; }
.title-accent { color: var(--purple); text-shadow: 0 0 30px var(--purple-glow); }

.hero-subtitle {
  color: var(--text-dim);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-stats {
  display: flex;
  gap: 20px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 100px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
  border-color: var(--cyan-dim);
  box-shadow: 0 0 20px var(--cyan-dim);
}

.stat-value {
  font-family: 'Orbitron', monospace;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--cyan);
  text-shadow: 0 0 10px var(--cyan-glow);
}

.stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Helix Visual */
.hero-visual {
  position: relative;
  z-index: 2;
}

.helix-strand {
  position: relative;
  width: 120px;
  height: 400px;
}

.helix-node {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  animation: node-pulse 4s ease-in-out infinite;
}

.node-1 { top: 0; left: 10px; background: var(--cyan); box-shadow: 0 0 15px var(--cyan-glow); animation-delay: 0s; }
.node-2 { top: 80px; right: 10px; background: var(--purple); box-shadow: 0 0 15px var(--purple-glow); animation-delay: 0.5s; }
.node-3 { top: 160px; left: 10px; background: var(--cyan); box-shadow: 0 0 15px var(--cyan-glow); animation-delay: 1s; }
.node-4 { top: 240px; right: 10px; background: var(--purple); box-shadow: 0 0 15px var(--purple-glow); animation-delay: 1.5s; }
.node-5 { top: 320px; left: 10px; background: var(--cyan); box-shadow: 0 0 15px var(--cyan-glow); animation-delay: 2s; }

@keyframes node-pulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.4); opacity: 1; }
}

.helix-connector {
  position: absolute;
  width: 100px;
  height: 2px;
  left: 10px;
  transform-origin: left center;
}

.c-1 { top: 40px; background: linear-gradient(90deg, var(--cyan), var(--purple)); transform: rotate(25deg); box-shadow: 0 0 8px var(--cyan-dim); }
.c-2 { top: 120px; background: linear-gradient(90deg, var(--purple), var(--cyan)); transform: rotate(-25deg); box-shadow: 0 0 8px var(--purple-dim); }
.c-3 { top: 200px; background: linear-gradient(90deg, var(--cyan), var(--purple)); transform: rotate(25deg); box-shadow: 0 0 8px var(--cyan-dim); }
.c-4 { top: 280px; background: linear-gradient(90deg, var(--purple), var(--cyan)); transform: rotate(-25deg); box-shadow: 0 0 8px var(--purple-dim); }

/* FEATURES */
.features {
  position: relative;
  z-index: 1;
  padding: 100px 40px;
  text-align: center;
}

.section-header {
  margin-bottom: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: left;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  border-color: var(--cyan-dim);
  box-shadow: 0 0 30px var(--cyan-dim);
  transform: translateY(-4px);
}

.feature-large {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--bg-card) 0%, #1a1a2e 100%);
  border-color: var(--cyan-dim);
}

.feature-icon {
  position: relative;
  margin-bottom: 20px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-glow {
  position: absolute;
  inset: -8px;
  background: radial-gradient(circle, var(--cyan-dim) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(8px);
}

.icon-glow-purple {
  background: radial-gradient(circle, var(--purple-dim) 0%, transparent 70%);
}

.feature-card h3 {
  font-family: 'Orbitron', monospace;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.feature-card p {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.6;
}

.feature-xp {
  display: inline-block;
  margin-top: 16px;
  font-family: 'Orbitron', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--cyan);
  background: var(--cyan-dim);
  padding: 6px 14px;
  border-radius: 100px;
  text-shadow: 0 0 8px var(--cyan-glow);
}

/* QUESTS */
.quests {
  position: relative;
  z-index: 1;
  padding: 100px 40px;
}

.quests-layout {
  display: flex;
  gap: 60px;
  max-width: 1000px;
  margin: 0 auto;
  align-items: flex-start;
}

.quests-info { flex: 1; }

.quest-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}

.quest-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: border-color 0.3s;
}

.quest-item:hover { border-color: var(--cyan-dim); }

.quest-badge {
  font-family: 'Orbitron', monospace;
  font-size: 0.55rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  padding: 4px 10px;
  border-radius: 6px;
  white-space: nowrap;
}

.quest-daily { background: var(--cyan-dim); color: var(--cyan); }
.quest-weekly { background: var(--purple-dim); color: var(--purple); }
.quest-epic { background: linear-gradient(135deg, var(--cyan-dim), var(--purple-dim)); color: #fff; }

.quest-details { display: flex; flex-direction: column; gap: 2px; }
.quest-name { font-size: 0.9rem; font-weight: 500; }
.quest-reward { font-family: 'Orbitron', monospace; font-size: 0.65rem; color: var(--text-muted); letter-spacing: 0.05em; }

/* Avatar Preview */
.quests-visual { flex: 0 0 300px; }

.avatar-preview { position: relative; }

.avatar-frame {
  background: var(--bg-card);
  border: 2px solid var(--purple-dim);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.avatar-glow {
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, var(--purple-dim) 0%, transparent 70%);
  filter: blur(40px);
}

.avatar-body {
  position: relative;
  z-index: 1;
  padding: 40px 0 20px;
}

.avatar-level {
  font-family: 'Orbitron', monospace;
  font-size: 2rem;
  font-weight: 900;
  color: var(--purple);
  text-shadow: 0 0 20px var(--purple-glow);
  margin-bottom: 4px;
}

.avatar-name {
  font-family: 'Orbitron', monospace;
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.2em;
}

.xp-bar {
  position: relative;
  height: 8px;
  background: var(--bg-deep);
  border-radius: 100px;
  margin-top: 20px;
  overflow: hidden;
}

.xp-fill {
  height: 100%;
  width: 84.5%;
  background: linear-gradient(90deg, var(--purple), var(--cyan));
  border-radius: 100px;
  box-shadow: 0 0 10px var(--cyan-glow);
  animation: xp-shimmer 3s ease-in-out infinite;
}

@keyframes xp-shimmer {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; }
}

.xp-text {
  display: block;
  margin-top: 8px;
  font-family: 'Orbitron', monospace;
  font-size: 0.6rem;
  color: var(--text-muted);
  text-align: right;
}

.loot-items {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  justify-content: center;
}

.loot-item {
  font-family: 'Orbitron', monospace;
  font-size: 0.55rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 8px;
  letter-spacing: 0.05em;
}

.loot-rare { background: var(--cyan-dim); color: var(--cyan); border: 1px solid var(--cyan-dim); }
.loot-epic { background: var(--purple-dim); color: var(--purple); border: 1px solid var(--purple-dim); }
.loot-legendary { background: linear-gradient(135deg, #FFD700 0%, #FF6B00 100%); color: #0A0A0F; }

/* CLOSING */
.closing {
  position: relative;
  z-index: 1;
  padding: 120px 40px;
  text-align: center;
}

.closing-content {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.closing-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, var(--cyan-dim) 0%, var(--purple-dim) 40%, transparent 70%);
  filter: blur(80px);
  opacity: 0.3;
}

.closing-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 24px;
  position: relative;
}

.closing-text {
  color: var(--text-dim);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 32px;
  position: relative;
}

.closing-disclaimer {
  font-family: 'Orbitron', monospace;
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  position: relative;
}

/* FOOTER */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 40px;
}

.footer-content {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand { display: flex; flex-direction: column; gap: 4px; }

.footer-logo {
  font-family: 'Orbitron', monospace;
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.15em;
}

.footer-logo-accent { color: var(--cyan); text-shadow: 0 0 10px var(--cyan-glow); }

.footer-tagline {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.footer-links { font-size: 0.75rem; color: var(--text-muted); }
.footer-link { letter-spacing: 0.03em; }
.footer-copy { font-size: 0.7rem; color: var(--text-muted); }

/* MOBILE */
@media (max-width: 768px) {
  .hero {
    flex-direction: column;
    padding: 60px 24px;
    text-align: center;
    min-height: auto;
  }
  .hero-subtitle { margin: 0 auto 40px; }
  .hero-stats { justify-content: center; flex-wrap: wrap; }
  .hero-visual { display: none; }
  .features { padding: 60px 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-large { grid-column: span 1; }
  .quests { padding: 60px 24px; }
  .quests-layout { flex-direction: column; }
  .quests-visual { flex: auto; width: 100%; }
  .closing { padding: 80px 24px; }
  .footer-content { flex-direction: column; text-align: center; }
}