:root {
  --bg: #0a0a0a;
  --fg: #f0f0f0;
  --fg-muted: #8a8a8a;
  --accent: #c8ff00;
  --accent-dim: #a3cc00;
  --surface: #141414;
  --surface-light: #1e1e1e;
  --border: #2a2a2a;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(200, 255, 0, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.hero-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2rem;
  padding: 0.4rem 1rem;
  border: 1px solid rgba(200, 255, 0, 0.25);
  border-radius: 2px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 900px;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-sub {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--fg-muted);
  max-width: 520px;
  margin-top: 1.8rem;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.hero-stat h3 {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
}

.hero-stat p {
  font-size: 0.85rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.3rem;
}

/* ===== PROBLEM SECTION ===== */
.problem {
  padding: 6rem 2rem;
  background: var(--surface);
}

.problem-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.problem-text h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.problem-text h2 .accent {
  color: var(--accent);
}

.problem-text p {
  color: var(--fg-muted);
  margin-top: 1.5rem;
  font-size: 1.05rem;
  line-height: 1.75;
}

.problem-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.problem-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: border-color 0.3s;
}

.problem-card:hover {
  border-color: var(--accent);
}

.problem-card h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.problem-card p {
  color: var(--fg-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ===== VERTICALS ===== */
.verticals {
  padding: 6rem 2rem;
}

.verticals-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.verticals h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  text-align: center;
  letter-spacing: -0.02em;
}

.verticals h2 .accent {
  color: var(--accent);
}

.verticals-subtitle {
  text-align: center;
  color: var(--fg-muted);
  max-width: 500px;
  margin: 1rem auto 3.5rem;
  font-size: 1.05rem;
}

.verticals-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.vertical-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
  text-align: center;
  transition: transform 0.3s, border-color 0.3s;
}

.vertical-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.vertical-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.vertical-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.vertical-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ===== HOW IT WORKS ===== */
.how {
  padding: 6rem 2rem;
  background: var(--surface);
}

.how-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  text-align: center;
  letter-spacing: -0.02em;
  margin-bottom: 3.5rem;
}

.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.how-step {
  position: relative;
  padding: 2rem;
}

.step-number {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.25;
  line-height: 1;
  margin-bottom: 1rem;
}

.how-step h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.how-step p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== CLOSING ===== */
.closing {
  padding: 8rem 2rem;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(200, 255, 0, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 .accent {
  color: var(--accent);
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.1rem;
  max-width: 480px;
  margin: 1.5rem auto 0;
  line-height: 1.7;
}

/* ===== FOOTER ===== */
footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.footer-brand .accent {
  color: var(--accent);
}

footer p {
  color: var(--fg-muted);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.footer-social {
  margin-top: 1.25rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--fg-muted);
  font-size: 0.85rem;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.social-link svg {
  flex-shrink: 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero { padding: 4rem 1.5rem 3rem; min-height: auto; }
  .hero-stats { flex-direction: column; gap: 1.5rem; }
  .problem-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .verticals-grid { grid-template-columns: 1fr 1fr; }
  .how-steps { grid-template-columns: 1fr; gap: 1rem; }
  .closing { padding: 5rem 1.5rem; }
}

@media (max-width: 480px) {
  .hero { padding: 3rem 1.25rem 2.5rem; }
  .verticals-grid { grid-template-columns: 1fr; }
}