:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e6f0;
  --fg-dim: #9490a8;
  --fg-muted: #5c587a;
  --accent: #c4f53a;
  --accent-dim: rgba(196, 245, 58, 0.3);
  --accent-glow: rgba(196, 245, 58, 0.08);
  --border: rgba(148, 144, 168, 0.12);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

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

/* HERO */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 6rem 2rem 4rem;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at 30% 50%, var(--accent-glow) 0%, transparent 60%);
}

.hero-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-dim);
  max-width: 520px;
  line-height: 1.7;
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  height: 320px;
}

.hero-icon {
  position: relative;
  z-index: 2;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pulse-ring {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 1px solid var(--accent-dim);
  animation: pulse 3s ease-out infinite;
}

.pulse-ring.delay-1 { animation-delay: 1s; }
.pulse-ring.delay-2 { animation-delay: 2s; }

@keyframes pulse {
  0% { transform: scale(0.6); opacity: 0.8; }
  100% { transform: scale(2.2); opacity: 0; }
}

/* PROBLEM */
.problem {
  padding: 6rem 2rem;
  background: var(--bg-elevated);
}

.problem-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 2.5rem;
}

.problem-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.problem-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
}

.problem-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.problem-label {
  color: var(--fg-dim);
  font-size: 0.95rem;
  margin-top: 0.5rem;
  line-height: 1.5;
}

.problem-statement {
  font-size: 1.1rem;
  color: var(--fg-dim);
  max-width: 720px;
  line-height: 1.7;
}

/* HOW IT WORKS */
.how {
  padding: 6rem 2rem;
}

.how-inner {
  max-width: 1000px;
  margin: 0 auto;
}

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

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

.how-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: border-color 0.3s;
}

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

.how-step {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.how-item h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.how-item p {
  color: var(--fg-dim);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* COMPARISON */
.comparison {
  padding: 6rem 2rem;
  background: var(--bg-elevated);
}

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

.comparison h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 2.5rem;
}

.compare-table {
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.compare-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  border-bottom: 1px solid var(--border);
}

.compare-row:last-child {
  border-bottom: none;
}

.compare-row > div {
  padding: 1rem 1.25rem;
  font-size: 0.95rem;
}

.compare-header {
  background: var(--bg);
}

.compare-header > div {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  color: var(--fg-dim);
}

.compare-feature {
  color: var(--fg);
  font-weight: 500;
}

.compare-old {
  color: var(--fg-muted);
}

.compare-new {
  color: var(--accent);
  font-weight: 500;
}

/* CLOSING */
.closing {
  padding: 8rem 2rem;
  text-align: center;
  background: radial-gradient(ellipse at 50% 80%, var(--accent-glow) 0%, transparent 50%);
}

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.closing p {
  font-size: 1.1rem;
  color: var(--fg-dim);
  line-height: 1.7;
  margin-bottom: 3rem;
}

.closing-stats {
  display: flex;
  justify-content: center;
  gap: 4rem;
}

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

.stat-value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--fg-dim);
  margin-top: 0.25rem;
}

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

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
}

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

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 4rem 1.5rem 3rem;
  }

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

  .hero-visual {
    height: 200px;
  }

  .problem-cards {
    grid-template-columns: 1fr;
  }

  .how-grid {
    grid-template-columns: 1fr;
  }

  .compare-row {
    grid-template-columns: 1.2fr 0.8fr 1fr;
  }

  .compare-row > div {
    padding: 0.75rem 0.75rem;
    font-size: 0.85rem;
  }

  .closing-stats {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}

/* CTA BUTTON — used on landing page hero + closing */
.cta-btn {
  display: inline-block;
  background: var(--accent);
  color: #0a0a0f;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 1.75rem;
  border-radius: 100px;
  text-decoration: none;
  transition: opacity 0.15s, transform 0.1s;
  letter-spacing: -0.01em;
}

.cta-btn:hover { opacity: 0.88; transform: translateY(-1px); }
.cta-btn:active { transform: scale(0.97); }