:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e8ed;
  --fg-muted: #8b8b9e;
  --accent: #6c5ce7;
  --accent-light: #a29bfe;
  --accent-glow: rgba(108, 92, 231, 0.15);
  --success: #00d2a0;
  --border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.15;
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-light);
  letter-spacing: 0.5px;
  margin-bottom: 40px;
  background: var(--accent-glow);
}

.hero h1 {
  font-size: clamp(48px, 8vw, 80px);
  letter-spacing: -2px;
  margin-bottom: 28px;
}

.hero .accent {
  background: linear-gradient(135deg, var(--accent-light), var(--success));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lede {
  font-size: 20px;
  color: var(--fg-muted);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.6;
}

.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

/* ============ PROBLEM ============ */
.problem {
  padding: 120px 24px;
  background: var(--bg-elevated);
}

.problem-inner {
  max-width: 900px;
  margin: 0 auto;
}

.problem-label,
.pipeline-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.problem h2 {
  font-size: clamp(32px, 5vw, 48px);
  letter-spacing: -1px;
  margin-bottom: 56px;
}

.strikethrough {
  text-decoration: line-through;
  color: var(--fg-muted);
  text-decoration-color: var(--accent);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
}

.problem-card.new {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(108, 92, 231, 0.08), var(--bg-card));
}

.card-header {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 24px;
}

.problem-card.new .card-header {
  color: var(--accent-light);
}

.problem-card ul {
  list-style: none;
  margin-bottom: 28px;
}

.problem-card ul li {
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
  color: var(--fg-muted);
  font-size: 15px;
}

.problem-card.old ul li::before {
  content: '\00d7';
  position: absolute;
  left: 0;
  color: #ff6b6b;
  font-weight: 700;
}

.problem-card.new ul li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

.problem-card.new ul li {
  color: var(--fg);
}

.card-cost {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  color: var(--fg-muted);
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.problem-card.new .card-cost {
  color: var(--success);
  font-weight: 600;
}

/* ============ PIPELINE ============ */
.pipeline {
  padding: 120px 24px;
}

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

.pipeline h2 {
  font-size: clamp(32px, 5vw, 48px);
  letter-spacing: -1px;
  margin-bottom: 64px;
}

.pipeline-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.step-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.3;
  min-width: 80px;
  line-height: 1;
}

.step-content h3 {
  font-size: 24px;
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 16px;
  line-height: 1.65;
}

.step-connector {
  width: 2px;
  height: 48px;
  background: linear-gradient(180deg, var(--accent), transparent);
  margin-left: 39px;
  opacity: 0.3;
}

/* ============ FEATURES ============ */
.features {
  padding: 100px 24px;
  background: var(--bg-elevated);
}

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

.feature-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature {
  padding: 40px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
}

.feature-icon {
  font-size: 20px;
  color: var(--accent-light);
  margin-bottom: 20px;
}

.feature h3 {
  font-size: 20px;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.feature p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.6;
}

/* ============ CLOSING ============ */
.closing {
  padding: 140px 24px;
  text-align: center;
}

.closing-inner {
  max-width: 640px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(28px, 4.5vw, 44px);
  letter-spacing: -1px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--fg), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.closing-sub {
  color: var(--fg-muted);
  font-size: 18px;
}

/* ============ FOOTER ============ */
.site-footer {
  padding: 48px 24px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.5px;
}

.footer-meta {
  font-size: 14px;
  color: var(--fg-muted);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }

  .feature-row {
    grid-template-columns: 1fr;
  }

  .step {
    gap: 20px;
  }

  .step-number {
    font-size: 36px;
    min-width: 56px;
  }

  .hero {
    min-height: 70vh;
    padding: 100px 20px 60px;
  }

  .hero h1 {
    letter-spacing: -1px;
  }

  .problem,
  .pipeline,
  .features,
  .closing {
    padding: 80px 20px;
  }

  .problem-card {
    padding: 28px 24px;
  }
}