:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e8ed;
  --fg-muted: #8a8a9a;
  --accent: #ff4d3a;
  --accent-glow: rgba(255, 77, 58, 0.15);
  --green: #22c55e;
  --green-glow: rgba(34, 197, 94, 0.15);
  --border: rgba(255,255,255,0.06);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-w: 1120px;
  --section-pad: clamp(60px, 10vw, 120px);
}

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

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: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--fg);
}
.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
  box-shadow: 0 0 12px var(--accent);
}

/* HERO */
.hero {
  padding: calc(var(--section-pad) + 60px) 24px var(--section-pad);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative;
}
.hero-label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  max-width: 700px;
  margin-bottom: 24px;
}
.hero-highlight {
  color: var(--accent);
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 540px;
  margin-bottom: 48px;
  line-height: 1.7;
}
.hero-stats {
  display: flex;
  gap: 0;
  align-items: stretch;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 0;
  max-width: 660px;
}
.stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 24px;
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}
.stat-label {
  font-size: 0.82rem;
  color: var(--fg-muted);
  line-height: 1.4;
}
.stat-divider {
  width: 1px;
  background: var(--border);
}

/* PROBLEM */
.problem {
  padding: var(--section-pad) 24px;
  border-top: 1px solid var(--border);
}
.problem-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}
.problem-left h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  position: sticky;
  top: 120px;
}
.scenario {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 16px;
}
.scenario-good {
  border-color: rgba(34, 197, 94, 0.3);
  background: linear-gradient(135deg, var(--bg-elevated), var(--green-glow));
}
.scenario-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.scenario-content h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.scenario-content p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.6;
}
.scenario-content strong {
  color: var(--accent);
}
.scenario-good .scenario-content strong {
  color: var(--green);
}

/* HOW */
.how {
  padding: var(--section-pad) 24px;
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
}
.how-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.how-header {
  margin-bottom: 56px;
}
.section-tag {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  display: block;
  margin-bottom: 12px;
}
.how-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.15;
}
.how-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.how-card {
  padding: 32px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: border-color 0.2s;
}
.how-card:hover {
  border-color: rgba(255, 77, 58, 0.3);
}
.how-num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
  display: block;
}
.how-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.how-card p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* VERTICALS */
.verticals {
  padding: var(--section-pad) 24px;
  border-top: 1px solid var(--border);
}
.verticals-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.verticals-header {
  text-align: center;
  margin-bottom: 48px;
}
.verticals-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  font-weight: 700;
  line-height: 1.2;
  max-width: 560px;
  margin: 0 auto;
}
.verticals-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.vertical-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 28px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 0.2s, transform 0.2s;
}
.vertical-item:hover {
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}
.v-emoji {
  font-size: 2rem;
}
.v-name {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--fg-muted);
}

/* CLOSING */
.closing {
  padding: var(--section-pad) 24px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg) 0%, #0e0e18 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.closing::before {
  content: '';
  position: absolute;
  bottom: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--green-glow) 0%, transparent 70%);
  pointer-events: none;
}
.closing-inner {
  max-width: 680px;
  margin: 0 auto;
  position: relative;
}
.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
}
.closing-accent {
  color: var(--green);
}
.closing-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 48px;
}
.closing-proof {
  display: flex;
  justify-content: center;
  gap: 48px;
}
.proof-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.proof-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 6px;
}
.proof-label {
  font-size: 0.82rem;
  color: var(--fg-muted);
}

/* FOOTER */
.footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 8px;
}
.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-bottom: 4px;
}
.footer-loc {
  font-size: 0.78rem;
  color: var(--fg-muted);
  opacity: 0.6;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero-stats {
    flex-direction: column;
    gap: 0;
  }
  .stat {
    padding: 16px 24px;
  }
  .stat-divider {
    width: 80%;
    height: 1px;
    margin: 0 auto;
  }
  .problem-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .problem-left h2 {
    position: static;
  }
  .how-grid {
    grid-template-columns: 1fr;
  }
  .verticals-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .closing-proof {
    flex-direction: column;
    gap: 24px;
  }
  .scenario {
    flex-direction: column;
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .verticals-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .vertical-item {
    padding: 20px 12px;
  }
}