:root {
  --bg: #0a0a0b;
  --bg-elevated: #141416;
  --bg-card: #1a1a1e;
  --fg: #e8e8ec;
  --fg-muted: #8a8a96;
  --accent: #b5ff4d;
  --accent-dim: rgba(181, 255, 77, 0.12);
  --accent-glow: rgba(181, 255, 77, 0.25);
  --red: #ff6b6b;
  --green: #b5ff4d;
  --border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
  --radius-sm: 8px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'DM Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
}

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

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

/* HERO */
.hero {
  min-height: 90vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 6rem 2rem 4rem;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(181, 255, 77, 0.2);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: clamp(2.8rem, 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-muted);
  max-width: 480px;
  line-height: 1.7;
}

/* HERO CTA */
.hero-cta {
  display: inline-block;
  margin-top: 2rem;
  background: var(--accent);
  color: #0a0a0b;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: opacity 0.15s, transform 0.1s;
}
.hero-cta:hover { opacity: 0.88; transform: translateY(-1px); }
.hero-cta:active { transform: translateY(0); }

/* TAX CARD */
.hero-visual {
  display: flex;
  justify-content: center;
}

.tax-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 0 60px rgba(181, 255, 77, 0.06), 0 20px 40px rgba(0,0,0,0.4);
}

.tax-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.tax-card-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
  letter-spacing: 0.03em;
}

.tax-card-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
}

.tax-card-amount {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.tax-card-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-muted);
  padding: 0.5rem 0;
  border-top: 1px solid var(--border);
}

.breakdown-row .income {
  color: var(--fg);
}

.breakdown-row.deduction span:last-child {
  color: var(--accent);
}

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

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

.problem h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
  max-width: 600px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

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

.problem-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.problem-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

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

/* PLATFORMS */
.platforms {
  padding: 4rem 2rem;
  overflow: hidden;
}

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

.platforms-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
  text-align: center;
  margin-bottom: 1.5rem;
}

.platform-marquee {
  overflow: hidden;
  position: relative;
}

.platform-marquee::before,
.platform-marquee::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 80px;
  z-index: 2;
}

.platform-marquee::before {
  left: 0;
  background: linear-gradient(to right, var(--bg), transparent);
}

.platform-marquee::after {
  right: 0;
  background: linear-gradient(to left, var(--bg), transparent);
}

.platform-track {
  display: flex;
  gap: 1rem;
  animation: scroll 25s linear infinite;
  width: max-content;
}

@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.platform-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.5rem 1.2rem;
  border-radius: 100px;
  white-space: nowrap;
  flex-shrink: 0;
}

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

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

.features h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.feature-item {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border: 1px solid rgba(181, 255, 77, 0.15);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent);
}

.feature-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.feature-content p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 560px;
}

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

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

.closing h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.closing-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* FOOTER */
.site-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-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
}

/* MOBILE */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 4rem 1.5rem 3rem;
    gap: 3rem;
  }

  .hero-visual {
    order: -1;
  }

  .tax-card {
    max-width: 100%;
  }

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

  .problem {
    padding: 4rem 1.5rem;
  }

  .features {
    padding: 4rem 1.5rem;
  }

  .feature-item {
    flex-direction: column;
    gap: 1rem;
  }

  .closing {
    padding: 5rem 1.5rem;
  }

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