:root {
  --bg: #0d1117;
  --bg-2: #161b22;
  --bg-3: #21262d;
  --fg: #e6edf3;
  --fg-muted: #8b949e;
  --fg-subtle: #484f58;
  --accent: #00e87a;
  --accent-dim: rgba(0, 232, 122, 0.12);
  --accent-2: #58a6ff;
  --border: #30363d;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

*, *::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: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.nav-tagline {
  font-size: 0.875rem;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}

/* HERO */
.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px 64px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 64px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 20px;
}
.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-sub {
  font-size: 1.0625rem;
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 440px;
}

/* LOOP DIAGRAM */
.hero-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
}
.loop-diagram {
  display: grid;
  grid-template-columns: auto auto auto auto auto auto auto auto;
  align-items: center;
  gap: 4px;
}
.loop-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.step-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}
.step-label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
}
.loop-arrow {
  color: var(--fg-subtle);
  flex-shrink: 0;
}
.loop-back {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-left: 4px;
  align-self: center;
}

/* HERO STATS */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  border-top: 1px solid var(--border);
  padding-top: 40px;
}
.stat {
  padding: 0 40px;
}
.stat:first-child { padding-left: 0; }
.stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--fg);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.8125rem;
  color: var(--fg-muted);
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

/* SECTIONS */
.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-headline {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--fg);
  max-width: 600px;
}

/* PROCESS SECTION */
.loop-section {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.loop-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px;
}
.loop-headline-group {
  margin-bottom: 56px;
}
.process-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.process-step {
  display: flex;
  gap: 20px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
}
.process-step:nth-child(odd) { padding-right: 48px; }
.process-step:nth-child(even) { padding-left: 48px; border-left: 1px solid var(--border); }
.process-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
  flex-shrink: 0;
  padding-top: 3px;
}
.process-body h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.process-body p {
  font-size: 0.9375rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* FEATURES */
.features { padding: 80px 0; }
.features-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.features .section-headline { margin-bottom: 48px; }
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.feature-card {
  background: var(--bg-2);
  padding: 32px 28px;
  transition: background 0.2s;
}
.feature-card:hover { background: var(--bg-3); }
.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--accent-dim);
  border: 1px solid rgba(0, 232, 122, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 16px;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.feature-card p {
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* DIFFERENCE */
.difference {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}
.difference-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.difference-header { margin-bottom: 48px; }
.comparison-table {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.comp-header, .comp-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
}
.comp-header {
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
}
.comp-row { border-bottom: 1px solid var(--border); }
.comp-row:last-child { border-bottom: none; }
.comp-col {
  padding: 18px 24px;
  font-size: 0.9rem;
  border-right: 1px solid var(--border);
  display: flex;
  align-items: center;
}
.comp-col:last-child { border-right: none; }
.comp-col-empty { border-right: 1px solid var(--border); }
.comp-col-label { color: var(--fg); font-weight: 500; }
.comp-col:not(.comp-col-label):not(.comp-col-empty) { color: var(--fg-muted); }
.comp-col-reachify { color: var(--fg); }
.comp-x { color: var(--fg-muted); text-decoration: line-through; text-decoration-color: var(--fg-subtle); }
.comp-check {
  color: var(--accent);
  font-weight: 500;
}
.comp-header .comp-col {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
}
.comp-header .comp-col-reachify { color: var(--accent); }

/* CLOSING */
.closing { padding: 96px 0; }
.closing-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--fg);
  max-width: 700px;
  margin-bottom: 20px;
}
.closing-sub {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 40px;
}
.closing-statement {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.01em;
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 8px;
}
.footer-desc {
  font-size: 0.875rem;
  color: var(--fg-muted);
  max-width: 280px;
}
.footer-copy {
  font-size: 0.8125rem;
  color: var(--fg-subtle);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-diagram { display: none; }
  .process-steps { grid-template-columns: 1fr; }
  .process-step:nth-child(odd) { padding-right: 0; }
  .process-step:nth-child(even) { padding-left: 0; border-left: none; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .comp-header, .comp-row { grid-template-columns: 1fr; }
  .comp-col:not(.comp-col-label) { display: none; }
  .comp-col-label { grid-column: 1 / -1; border-right: none; }
}
@media (max-width: 600px) {
  .hero { padding: 48px 20px 40px; }
  .hero-stats { flex-direction: column; gap: 24px; }
  .stat { padding: 0; }
  .stat-divider { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .loop-inner, .features-inner, .difference-inner, .closing-inner { padding: 0 20px; }
  .closing, .features, .difference, .loop-section { padding: 56px 0; }
  .footer-inner { flex-direction: column; }
}