:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #1a1a25;
  --fg: #e8e8ed;
  --fg-muted: #8888a0;
  --accent: #00E676;
  --accent-dim: #00c864;
  --accent-glow: rgba(0, 230, 118, 0.15);
  --border: #2a2a3a;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

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

/* ===== HERO ===== */
.hero {
  min-height: 90vh;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 4rem;
  padding: 6rem 8% 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(0, 230, 118, 0.25);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 2rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

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

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 480px;
  line-height: 1.7;
}

/* Wallet visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.wallet-stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
}

.wallet-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.2rem 1.6rem;
  min-width: 300px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.wallet-card:hover {
  transform: translateX(8px);
  border-color: var(--accent);
}

.wallet-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.wallet-1 .wallet-icon { background: #1a4d2e; color: #00E676; }
.wallet-2 .wallet-icon { background: #2d1a4d; color: #bb86fc; }
.wallet-3 .wallet-icon { background: #1a3d4d; color: #40c4ff; }

.wallet-name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.95rem;
  flex: 1;
}

.wallet-bal {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--fg);
}

.transfer-arrow {
  position: absolute;
  right: -50px;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent-glow);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.3); }
  50% { box-shadow: 0 0 0 12px rgba(0, 230, 118, 0); }
}

/* ===== PROBLEM ===== */
.problem {
  padding: 8rem 8%;
  background: var(--bg-elevated);
}

.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 3.5rem;
}

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

.problem-card {
  padding: 2rem;
  border-left: 2px solid var(--accent);
}

.problem-num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

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

/* ===== FEATURES ===== */
.features {
  padding: 8rem 8%;
}

.features-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}

.feature-block {
  padding: 2.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: border-color 0.3s ease;
}

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

.feature-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.feature-block h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

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

/* ===== HOW IT WORKS ===== */
.how {
  padding: 8rem 8%;
  background: var(--bg-elevated);
}

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

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 3.5rem;
  text-align: center;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.step {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.step-number {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent-glow);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--accent);
  flex-shrink: 0;
}

.step-content h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

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

/* ===== CLOSING ===== */
.closing {
  padding: 10rem 8%;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.closing-text {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.8;
  max-width: 550px;
  margin: 0 auto;
}

/* ===== CTA BUTTON (landing page) ===== */
.cta-btn {
  display: inline-block;
  margin-top: 2rem;
  padding: 0.9rem 2rem;
  background: var(--accent);
  color: #0a0a0f;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 10px;
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: background 0.2s ease, transform 0.15s ease;
}
.cta-btn:hover {
  background: var(--accent-dim);
  transform: translateY(-2px);
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 3rem 8%;
  border-top: 1px solid var(--border);
}

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

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
}

.footer-tagline {
  color: var(--fg-muted);
  font-size: 0.9rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 5rem 6% 3rem;
    gap: 3rem;
  }
  .hero-visual { order: -1; }
  .transfer-arrow { right: -40px; }
  .wallet-card { min-width: 260px; }
  .problem-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .features-inner { grid-template-columns: 1fr; gap: 1.5rem; }
  .closing { padding: 6rem 6%; }
}

@media (max-width: 480px) {
  body { font-size: 15px; }
  .hero { padding: 3.5rem 5% 2rem; }
  .hero h1 { font-size: 2.2rem; }
  .wallet-card { min-width: 220px; padding: 1rem 1.2rem; }
  .wallet-icon { width: 36px; height: 36px; font-size: 0.9rem; }
  .problem { padding: 5rem 5%; }
  .features { padding: 5rem 5%; }
  .how { padding: 5rem 5%; }
  .feature-block { padding: 1.8rem; }
  .step { gap: 1.2rem; }
  .step-number { width: 42px; height: 42px; font-size: 1rem; }
  .footer-inner { flex-direction: column; gap: 0.5rem; text-align: center; }
}