:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #1a1a26;
  --fg: #e8e8ef;
  --fg-muted: #8888a0;
  --accent: #00e5a0;
  --accent-glow: rgba(0, 229, 160, 0.15);
  --accent-secondary: #7b61ff;
  --gradient: linear-gradient(135deg, #00e5a0 0%, #7b61ff 100%);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --radius: 16px;
  --radius-sm: 8px;
}

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

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === HERO === */
.hero {
  position: relative;
  padding: 140px 0 100px;
  text-align: center;
  overflow: hidden;
}

.hero-bg-shapes { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; }
.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
}
.shape-1 { width: 500px; height: 500px; background: var(--accent); top: -200px; right: -100px; }
.shape-2 { width: 400px; height: 400px; background: var(--accent-secondary); bottom: -150px; left: -100px; }
.shape-3 { width: 300px; height: 300px; background: #ff6b6b; top: 50%; left: 50%; transform: translate(-50%, -50%); opacity: 0.15; }

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background: var(--accent-glow);
  border: 1px solid rgba(0, 229, 160, 0.3);
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  position: relative;
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #00e5a0 0%, #7b61ff 100%);
  color: #000;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 100px;
  text-decoration: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  box-shadow: 0 8px 32px rgba(0, 229, 160, 0.25);
}

.hero-cta:hover {
  opacity: 0.92;
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 229, 160, 0.35);
}

.hero-cta-ghost {
  display: inline-flex;
  align-items: center;
  color: var(--fg-muted);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  padding: 14px 24px;
  border-radius: 100px;
  border: 1px solid rgba(255,255,255,0.1);
  transition: all 0.18s ease;
}

.hero-cta-ghost:hover {
  border-color: rgba(255,255,255,0.25);
  color: var(--fg);
}

/* === PROBLEM === */
.problem {
  padding: 100px 0;
  background: var(--bg-elevated);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.problem-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.problem-text p {
  color: var(--fg-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.problem-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.stack-item {
  padding: 16px 24px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  color: var(--fg-muted);
  position: relative;
}

.stack-item.crossed {
  text-decoration: line-through;
  opacity: 0.5;
}

.stack-item.highlight {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  opacity: 1;
  box-shadow: 0 0 30px rgba(0, 229, 160, 0.1);
}

/* === FEATURES === */
.features {
  padding: 100px 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 600;
  text-align: center;
  margin-bottom: 60px;
  letter-spacing: -0.02em;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 40px 36px;
  transition: border-color 0.3s;
}

.feature-card:hover {
  border-color: rgba(0, 229, 160, 0.3);
}

.feature-card.feature-large {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 229, 160, 0.05) 100%);
  border-color: rgba(0, 229, 160, 0.15);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border-radius: 12px;
  font-size: 1.4rem;
  margin-bottom: 20px;
  color: var(--accent);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

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

/* === HOW === */
.how {
  padding: 100px 0;
  background: var(--bg-elevated);
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
}

.step {
  flex: 1;
  text-align: center;
  padding: 0 24px;
  max-width: 320px;
}

.step-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 20px;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.step p {
  color: var(--fg-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.step-line {
  width: 60px;
  height: 2px;
  background: var(--gradient);
  margin-top: 36px;
  flex-shrink: 0;
  opacity: 0.5;
}

/* === CLOSING === */
.closing {
  padding: 120px 0;
  text-align: center;
}

.closing-content {
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 48px;
}

.closing-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid rgba(0, 229, 160, 0.15);
  border-radius: var(--radius);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  color: var(--fg-muted);
  font-size: 0.95rem;
}

/* === FOOTER === */
.footer {
  padding: 60px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-tagline {
  color: var(--fg-muted);
  font-size: 0.85rem;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero { padding: 100px 0 70px; }
  .problem-grid { grid-template-columns: 1fr; gap: 40px; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card.feature-large { grid-column: 1; }
  .steps { flex-direction: column; align-items: center; gap: 32px; }
  .step-line { width: 2px; height: 40px; }
  .step { padding: 0; }
  .closing-stat { padding: 24px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2.2rem; }
  .hero-sub { font-size: 1rem; }
  .feature-card { padding: 28px 24px; }
  .section-title { font-size: 1.6rem; }
}