:root {
  --bg: #0D0D0D;
  --surface: #181818;
  --surface2: #222222;
  --fg: #F5F5F5;
  --fg-muted: #999999;
  --accent: #BFFF00;
  --accent-dim: rgba(191, 255, 0, 0.1);
  --accent-dim2: rgba(191, 255, 0, 0.06);
  --radius: 6px;
  --radius-lg: 12px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

/* HERO */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  min-height: 90vh;
  padding: 80px 80px 100px;
  background:
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(191,255,0,0.05) 0%, transparent 70%),
    var(--bg);
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
}

.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-headline {
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  margin-bottom: 24px;
  color: var(--fg);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 460px;
  margin-bottom: 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 28px 32px;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-lg);
  width: fit-content;
}

.stat { display: flex; flex-direction: column; }
.stat-num {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.stat-unit {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.72rem;
  color: var(--fg-muted);
  max-width: 80px;
  line-height: 1.3;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.08);
}

.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-top: 20px;
}

.gear-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-lg);
}

.gear-img-placeholder {
  width: 64px;
  height: 64px;
  background: var(--accent-dim2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.gear-name {
  font-family: 'Syne', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.gear-price {
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
}

.challenge-card {
  position: relative;
  padding: 32px;
  background: linear-gradient(135deg, var(--surface2) 0%, var(--surface) 100%);
  border: 1px solid rgba(191,255,0,0.2);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.challenge-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(191,255,0,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.challenge-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--accent);
  padding: 4px 10px;
  border-radius: 3px;
  margin-bottom: 16px;
}

.challenge-title {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--fg);
  margin-bottom: 8px;
  line-height: 1.1;
}

.challenge-meta {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* PILLARS */
.pillars {
  padding: 100px 80px;
  background: var(--surface);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.pillars-inner { max-width: 1100px; margin: 0 auto; }

.pillars-heading {
  font-size: 2rem;
  margin-bottom: 56px;
  max-width: 500px;
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.pillar {
  padding: 32px;
  background: var(--surface2);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg);
  transition: border-color 0.2s;
}

.pillar:hover { border-color: rgba(191,255,0,0.2); }

.pillar-icon {
  margin-bottom: 20px;
}

.pillar-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.pillar-desc {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* CHALLENGE SECTION */
.challenge-section {
  padding: 100px 80px;
  background: var(--bg);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.challenge-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
}

.section-tag {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.challenge-headline {
  font-size: 2.4rem;
  margin-bottom: 20px;
}

.challenge-desc {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.8;
  margin-bottom: 32px;
}

.challenge-features { display: flex; flex-direction: column; gap: 12px; }

.cf-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
}

.cf-check {
  width: 22px;
  height: 22px;
  background: var(--accent);
  color: var(--bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.challenge-metric-block {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 16px;
}

.metric-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.metric-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--fg-muted);
  width: 80px;
  flex-shrink: 0;
}

.metric-bar {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  overflow: hidden;
}

.metric-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
}

.challenge-stat-bottom {
  font-size: 0.78rem;
  color: var(--fg-muted);
  text-align: center;
  font-style: italic;
}

/* GEAR SECTION */
.gear-section {
  padding: 100px 80px;
  background: var(--surface);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.gear-inner { max-width: 1100px; margin: 0 auto; }

.gear-heading {
  font-size: 2.4rem;
  margin-bottom: 48px;
  max-width: 500px;
}

.gear-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 36px;
}

.gear-product {
  padding: 28px;
  background: var(--surface2);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  text-align: center;
}

.gp-img { margin-bottom: 16px; }

.gp-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 80px;
}

.gp-label {
  font-family: 'Syne', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.gp-price {
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
}

.gear-footer {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--fg-muted);
}

.gf-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
}

/* CLOSING */
.closing { padding: 120px 80px; background: var(--bg); }

.closing-inner { max-width: 900px; margin: 0 auto; }

.closing-headline {
  font-size: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: 28px;
  text-align: center;
}

.closing-sub {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.8;
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.closing-divider {
  width: 60px;
  height: 2px;
  background: var(--accent);
  margin: 0 auto;
}

/* FOOTER */
footer {
  padding: 40px 80px;
  border-top: 1px solid rgba(255,255,255,0.06);
  background: var(--surface);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}

.footer-logo {
  font-family: 'Syne', sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--fg);
  margin-bottom: 6px;
}

.footer-tagline {
  font-size: 0.78rem;
  color: var(--fg-muted);
}

.footer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  font-size: 0.78rem;
  color: var(--fg-muted);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 60px 24px 80px;
    min-height: auto;
  }

  .hero-visual { display: none; }

  .hero-stats { flex-direction: column; align-items: flex-start; gap: 16px; }
  .stat-divider { display: none; }

  .pillars, .challenge-section, .gear-section, .closing { padding: 60px 24px; }
  footer { padding: 32px 24px; }

  .pillar-grid, .gear-grid { grid-template-columns: 1fr; gap: 16px; }
  .challenge-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { flex-direction: column; gap: 20px; align-items: flex-start; }
  .footer-links { align-items: flex-start; }
}