:root {
  --bg: #0a0a0f;
  --bg-subtle: #12121a;
  --fg: #e8e8ed;
  --fg-muted: #8a8a9a;
  --accent: #4ade80;
  --accent-glow: rgba(74, 222, 128, 0.15);
  --accent-dim: #2dd36f;
  --card-bg: #16161f;
  --card-border: #1e1e2a;
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  font-weight: 600;
}

/* ========= HERO ========= */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px 60px;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, var(--accent-glow) 0%, transparent 60%), var(--bg);
}

.hero-inner {
  max-width: 720px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 100px;
  margin-bottom: 32px;
  font-family: var(--font-display);
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
  margin-bottom: 24px;
  color: #fff;
}

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

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-clients {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.hero-clients > span {
  font-size: 0.85rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-display);
}

.client-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.tag {
  padding: 6px 14px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--fg-muted);
  font-family: var(--font-display);
  font-weight: 500;
}

/* ========= PROBLEM ========= */
.problem {
  padding: 100px 24px;
  background: var(--bg-subtle);
}

.problem-inner {
  max-width: 960px;
  margin: 0 auto;
}

.problem h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 48px;
  color: #fff;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.problem-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 32px;
}

.problem-icon {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.problem-card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: #fff;
}

.problem-card p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ========= SERVICES ========= */
.services {
  padding: 100px 24px;
  background: var(--bg);
}

.services-inner {
  max-width: 960px;
  margin: 0 auto;
}

.services h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 48px;
  color: #fff;
}

.services h2 .subtle {
  color: var(--fg-muted);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 36px;
  transition: border-color 0.2s;
}

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

.service-card.card-accent {
  border-color: rgba(74, 222, 128, 0.25);
  background: linear-gradient(135deg, var(--card-bg) 0%, rgba(74, 222, 128, 0.04) 100%);
}

.service-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  color: #fff;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ========= HOW ========= */
.how {
  padding: 100px 24px;
  background: var(--bg-subtle);
}

.how-inner {
  max-width: 720px;
  margin: 0 auto;
}

.how h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 56px;
  color: #fff;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.step-num {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border: 1px solid var(--accent-dim);
  border-radius: 50%;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
}

.step-content h3 {
  font-size: 1.15rem;
  margin-bottom: 6px;
  color: #fff;
}

.step-content p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ========= CLOSING ========= */
.closing {
  padding: 100px 24px;
  background: var(--bg);
  text-align: center;
}

.closing-inner {
  max-width: 760px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin-bottom: 12px;
  color: #fff;
}

.closing-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  margin-bottom: 48px;
}

.closing-stat {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  color: var(--accent);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--card-border);
}

/* ========= FOOTER ========= */
.site-footer {
  padding: 48px 24px;
  background: var(--bg-subtle);
  border-top: 1px solid var(--card-border);
  text-align: center;
}

.footer-inner {
  max-width: 720px;
  margin: 0 auto;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: #fff;
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--fg-muted);
}

/* ========= MOBILE ========= */
@media (max-width: 640px) {
  .problem-grid,
  .services-grid {
    grid-template-columns: 1fr;
  }

  .step {
    flex-direction: column;
    align-items: flex-start;
  }

  .closing-stat {
    flex-direction: column;
    gap: 24px;
  }

  .stat-divider {
    width: 48px;
    height: 1px;
  }

  .hero {
    min-height: auto;
    padding: 60px 20px 48px;
  }
}