:root {
  --bg-dark: #0a0a0f;
  --bg-card: #12121a;
  --accent: #00e5a0;
  --accent-dim: rgba(0, 229, 160, 0.12);
  --accent-glow: rgba(0, 229, 160, 0.24);
  --text-primary: #f0f0f5;
  --text-secondary: #9090a8;
  --text-muted: #66667d;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "DM Sans", sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.grid-overlay {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
  z-index: 0;
}

.glow {
  position: fixed;
  border-radius: 999px;
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}

.glow-hero {
  top: 0;
  left: 50%;
  width: 620px;
  height: 320px;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
}

.glow-lower {
  right: -10%;
  bottom: 8%;
  width: 420px;
  height: 280px;
  background: radial-gradient(circle, rgba(0, 229, 160, 0.12) 0%, transparent 72%);
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0;
}

.brand {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-cta,
.button {
  border-radius: 12px;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.nav-cta {
  color: var(--bg-dark);
  background: var(--accent);
  padding: 12px 20px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 22px;
}

.button:hover,
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 30px rgba(0, 229, 160, 0.18);
}

.button-primary {
  color: var(--bg-dark);
  background: var(--accent);
}

.button-secondary {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.button-full {
  width: 100%;
  border: 0;
  cursor: pointer;
}

.hero {
  padding: 72px 0 88px;
}

.pill,
.section-kicker,
.panel-label,
.engine-chip {
  color: var(--accent);
}

.pill {
  display: inline-flex;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--accent-dim);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 32px;
  align-items: start;
}

.hero h1,
.section-head h2,
.engine-header h3,
.stack-card h3,
.feature-card h3,
.payment-card h3,
.cta-copy h2 {
  font-family: "Space Grotesk", sans-serif;
}

.hero h1 {
  font-size: clamp(1.25rem, 3.5vw, 3.75rem);
  line-height: 1.3;
  letter-spacing: -0.05em;
  margin: 0 0 24px;
  max-width: 760px;
}

.hero h1 span {
  color: var(--accent);
  display: block;
}

.hero-sub {
  max-width: 620px;
  font-size: 1.12rem;
  color: var(--text-secondary);
  margin: 0 0 34px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 40px;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}

.stat {
  padding-right: 18px;
}

.stat-number {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  color: var(--accent);
  font-size: 1.15rem;
  font-weight: 700;
}

.stat-label {
  display: block;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 6px;
}

.hero-panel,
.engine-side {
  display: grid;
  gap: 18px;
}

.panel-card,
.feature-card,
.engine-card,
.side-card,
.stack-card,
.payment-card,
.lead-form {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.panel-card,
.engine-card,
.side-card,
.stack-card,
.payment-card {
  padding: 24px;
}

.spotlight {
  padding: 28px;
}

.panel-label,
.section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  font-weight: 700;
}

.receipt-line {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 16px;
}

.receipt-line.muted {
  color: var(--text-secondary);
}

.receipt-line.total {
  padding-top: 18px;
  margin-top: 22px;
  border-top: 1px solid var(--border);
  font-size: 1.05rem;
}

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

.payment-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.payment-tags span,
.checkbox-row span,
.engine-chip {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  padding: 8px 12px;
  font-size: 0.82rem;
}

.mini p,
.feature-card p,
.stack-card p,
.payment-card p,
.side-card p,
.lead-form label {
  color: var(--text-secondary);
}

.section {
  padding: 92px 0;
}

.section-head {
  display: grid;
  gap: 16px;
  margin-bottom: 34px;
  max-width: 760px;
}

.section-head.split {
  max-width: none;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: end;
}

.section-head h2,
.cta-copy h2 {
  margin: 0;
  font-size: clamp(2rem, 3.5vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.section-head p {
  margin: 0;
  color: var(--text-secondary);
  max-width: 680px;
}

.feature-grid,
.stack-grid,
.payments-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.feature-card {
  padding: 26px;
}

.feature-step {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--accent-dim);
  color: var(--accent);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  margin-bottom: 20px;
}

.engine-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 20px;
}

.engine-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: start;
}

.engine-header h3 {
  margin: 8px 0 0;
  font-size: 1.5rem;
}

.slider-group {
  margin-top: 28px;
}

.slider-group label {
  display: block;
  margin-bottom: 10px;
  font-weight: 700;
}

.slider-group input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.slider-meta {
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.engine-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.metric-label {
  display: block;
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 8px;
}

.bullet-list {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--text-secondary);
}

.bullet-list li + li {
  margin-top: 10px;
}

.payment-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 62px;
  padding: 10px 14px;
  border-radius: 14px;
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-shell {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 26px;
  padding: 30px;
  background: linear-gradient(145deg, rgba(0, 229, 160, 0.08), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(0, 229, 160, 0.16);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.lead-form {
  display: grid;
  gap: 14px;
  padding: 24px;
}

.lead-form label {
  display: grid;
  gap: 8px;
  font-size: 0.95rem;
}

.lead-form input,
.lead-form select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(10, 10, 15, 0.86);
  color: var(--text-primary);
  padding: 14px 16px;
  font: inherit;
}

.lead-summary p {
  margin: 0;
  color: var(--text-secondary);
}

.checkbox-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.signup-page {
  padding-bottom: 72px;
}

.signup-shell {
  padding-top: 56px;
}

.signup-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: start;
}

.signup-form {
  padding: 26px;
}

.wallet-panel {
  display: grid;
  gap: 14px;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.wallet-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 16px;
}

.wallet-copy {
  margin: 0;
  color: var(--text-secondary);
}

.wallet-button {
  border: 1px solid var(--border);
  cursor: pointer;
}

.wallet-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.wallet-status {
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(0, 229, 160, 0.18);
  background: rgba(0, 229, 160, 0.08);
  color: var(--text-primary);
}

.wallet-status[data-state="error"] {
  border-color: rgba(255, 141, 87, 0.22);
  background: rgba(255, 141, 87, 0.1);
}

.wallet-install {
  display: grid;
  gap: 10px;
}

.wallet-install-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.wallet-install-links a {
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  padding: 10px 14px;
  color: var(--text-primary);
}

.rail-fieldset {
  border: 0;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.rail-fieldset legend {
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.checkbox-option {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
}

.signup-result {
  min-height: 240px;
}

.api-key-block {
  display: block;
  margin: 12px 0;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--accent);
  font-family: "Space Grotesk", sans-serif;
  overflow-wrap: anywhere;
}

.integration-steps {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.steps-list {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--text-secondary);
}

.steps-list li + li {
  margin-top: 8px;
}

.consulting-box {
  margin-top: 18px;
  padding: 16px;
  border-radius: 16px;
  background: rgba(0, 229, 160, 0.08);
  border: 1px solid rgba(0, 229, 160, 0.16);
}

.consulting-box p {
  margin: 0;
}

.consulting-box p + p {
  margin-top: 10px;
  color: var(--text-secondary);
}

.footer {
  padding: 0 0 46px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
}

.footer .brand {
  padding-top: 24px;
}

.footer p {
  padding-top: 24px;
  margin: 0;
  max-width: 420px;
  text-align: right;
}

@media (max-width: 980px) {
  .hero-grid,
  .section-head.split,
  .engine-grid,
  .cta-shell,
  .signup-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .stack-grid,
  .payments-grid,
  .stats-row,
  .engine-metrics {
    grid-template-columns: 1fr;
  }

  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .footer {
    flex-direction: column;
  }

  .footer p {
    text-align: left;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .hero {
    padding-top: 44px;
  }

  .hero h1 {
    font-size: clamp(2.2rem, 10vw, 3.2rem);
  }

  .hero-actions,
  .slider-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-shell {
    padding: 22px;
  }

  .wallet-panel-head {
    flex-direction: column;
  }
}