:root {
  --bg: #0a0e17;
  --bg-elevated: #111827;
  --bg-card: #161d2e;
  --fg: #e8ecf4;
  --fg-muted: #8892a6;
  --fg-dim: #5a6478;
  --accent: #00e5c7;
  --accent-dim: rgba(0, 229, 199, 0.12);
  --accent-glow: rgba(0, 229, 199, 0.25);
  --border: rgba(255, 255, 255, 0.06);
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, 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;
}

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

/* ======= HERO ======= */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem 2rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-grid { position: relative; z-index: 1; }

.hero-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  max-width: 800px;
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 540px;
  line-height: 1.7;
}

.hero-metrics {
  display: flex;
  gap: 3rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.metric { display: flex; flex-direction: column; gap: 0.3rem; }

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

.metric-label {
  font-size: 0.85rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ======= PROBLEM ======= */
.problem {
  padding: 6rem 2rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.problem-tag,
.features-tag,
.data-tag {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
}

.problem-stat {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1rem;
  line-height: 1;
}

.problem-card p {
  color: var(--fg-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* ======= FEATURES ======= */
.features {
  padding: 6rem 2rem;
}

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

.features-header {
  margin-bottom: 4rem;
}

.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
  transition: border-color 0.3s ease;
}

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

.feature-number {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 1.2rem;
  letter-spacing: 0.05em;
}

.feature h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

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

/* ======= DATA ======= */
.data {
  padding: 6rem 2rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.data-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.data-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.data-text p {
  color: var(--fg-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.data-highlight {
  color: var(--fg) !important;
  font-weight: 500;
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
  margin-top: 1.5rem !important;
}

.data-visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.data-bar-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.data-bar-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.data-bar {
  height: 8px;
  background: var(--bg-card);
  border-radius: 4px;
  overflow: hidden;
}

.data-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), rgba(0, 229, 199, 0.5));
  border-radius: 4px;
  transition: width 1s ease;
}

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

.closing-inner {
  max-width: 800px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.closing-text {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto;
}

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

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--fg-dim);
}

.footer-sub {
  font-size: 0.8rem;
  color: var(--fg-dim);
}

/* ======= RESPONSIVE ======= */
@media (max-width: 768px) {
  .hero { min-height: auto; padding: 4rem 1.5rem 3rem; }
  .hero-metrics { flex-direction: column; gap: 1.5rem; }
  .problem { padding: 4rem 1.5rem; }
  .problem-grid { grid-template-columns: 1fr; }
  .features { padding: 4rem 1.5rem; }
  .features-grid { grid-template-columns: 1fr; }
  .data { padding: 4rem 1.5rem; }
  .data-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .closing { padding: 5rem 1.5rem; }
  .footer-inner { flex-direction: column; gap: 0.5rem; text-align: center; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2.2rem; }
  .problem-stat { font-size: 2.5rem; }
}