:root {
  --ink-950: #04060c;
  --ink-900: #0a0d16;
  --ink-850: #111520;
  --ink-800: #161a26;
  --ink-700: #1e2333;
  --ink-600: #2d3348;
  --ink-500: #4a5070;
  --ink-400: #6b7194;
  --ink-300: #949ab8;
  --ink-200: #c4c8d6;
  --ink-100: #e4e6ed;
  --amber-600: #92400e;
  --amber-500: #d97706;
  --amber-400: #f59e0b;
  --amber-300: #fbbf24;
  --amber-200: #fcd34d;
  --amber-100: #fde68a;
  --signal: #6ae3a1;

  --f-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --f-body: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --container: 1160px;
}

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

html {
  background: var(--ink-950);
  color: var(--ink-200);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  background: radial-gradient(
      ellipse 70% 50% at 50% 0%,
      rgba(217, 119, 6, 0.04) 0%,
      transparent 100%
    ), radial-gradient(ellipse 40% 40% at 80% 60%, rgba(245, 158, 11, 0.03) 0%, transparent 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  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: 64px 64px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 0%, black 30%, transparent 70%);
}

a {
  color: var(--amber-400);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--amber-300);
}

code {
  font-family: var(--f-mono);
  font-size: 0.85em;
}

/* Nav */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4, 6, 12, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-inner {
  width: 100%;
  max-width: var(--container);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: baseline;
  font-family: var(--f-display);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--ink-100);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.logo span {
  color: var(--amber-400);
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  color: var(--ink-400);
  transition: color 0.2s;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.nav-links a:hover {
  color: var(--ink-100);
}

.nav-cta {
  color: var(--amber-400) !important;
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 6px 16px;
  transition: all 0.2s;
}

.nav-cta:hover {
  background: rgba(245, 158, 11, 0.08);
  color: var(--amber-300) !important;
  border-color: rgba(245, 158, 11, 0.5);
}

/* Status pill */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--signal);
}

.status-dot {
  width: 7px;
  height: 7px;
  background: var(--signal);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

/* Layout */
main {
  position: relative;
  z-index: 1;
}

section {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

/* Hero */
.hero {
  padding-top: 160px;
  padding-bottom: 96px;
  text-align: center;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

.hero h1 {
  font-family: var(--f-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.12;
  color: var(--ink-100);
  letter-spacing: -0.02em;

  margin-bottom: 20px;
}

.hero h1 em {
  font-style: italic;
  color: var(--amber-400);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--ink-400);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

/* Install block */
.install-block {
  position: relative;
  max-width: 540px;
  margin: 0 auto;
  text-align: left;
  background: var(--ink-850);
  border: 1px solid var(--ink-700);
  overflow: hidden;
}

.install-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--ink-900);
  border-bottom: 1px solid var(--ink-700);
}

.install-label span {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: var(--ink-500);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.copy-btn {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--amber-400);
  background: none;
  border: 1px solid rgba(245, 158, 11, 0.25);
  padding: 3px 10px;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.02em;
}

.copy-btn:hover {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.4);
}

.copy-btn.copied {
  color: var(--signal);
  border-color: rgba(106, 227, 161, 0.4);
}

.install-block pre {
  padding: 18px 20px;
  margin: 0;
  overflow-x: auto;
  font-family: var(--f-mono);
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--ink-200);
  background: transparent;
}

.install-block pre .prompt {
  color: var(--ink-500);
  user-select: none;
}
.install-block pre .cmd {
  color: var(--ink-100);
}
.install-block pre .flag {
  color: var(--amber-300);
}
.install-block pre .arg {
  color: var(--ink-300);
}
.install-block pre .comment {
  color: var(--ink-500);
  font-style: italic;
}

/* Flow visualization */
.flow-viz {
  height: 160px;
  margin-bottom: 60px;
  position: relative;
  overflow: hidden;
}

.flow-viz canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.section-dot {
  width: 8px;
  height: 8px;
  background: var(--amber-400);
  border-radius: 50%;
  display: inline-block;
}

.section-title {
  font-family: var(--f-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--ink-100);
  letter-spacing: -0.01em;

  margin-bottom: 16px;
}

.section-title em {
  font-style: normal;
  color: var(--amber-400);
}

/* Section dividers */
.section-divider {
  border-top: 1px solid var(--ink-800);
  margin: 0;
}
.section-divider-mark {
  display: block;
  max-width: var(--container);
  margin: 0 auto;
  padding: 12px 28px 0;
  text-align: right;
  font-family: var(--f-mono);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ink-800);
}

.section-sub {
  color: var(--ink-400);
  max-width: 560px;
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 40px;
}

/* How it works */
.how {
  padding: 100px 0;
}

.flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.flow-step {
  background: var(--ink-850);
  border: 1px solid var(--ink-700);
  padding: 28px 24px;
  transition: border-color 0.2s, transform 0.2s;
}

.flow-step:hover {
  border-color: var(--ink-600);
  transform: translateY(-2px);
}

.flow-step .num {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--amber-400);
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.flow-step h3 {
  font-family: var(--f-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink-100);
  margin-bottom: 8px;
}

.flow-step p {
  font-size: 0.88rem;
  color: var(--ink-400);
  line-height: 1.6;
}

/* CLI section */
.cli {
  padding: 100px 0;
}

.cli-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.cli-card {
  background: var(--ink-850);
  border: 1px solid var(--ink-700);
  padding: 20px 22px;
}

.cli-card-label {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--ink-500);
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}

.cli-card code {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--ink-200);
  line-height: 1.7;
  display: block;
  word-break: break-all;
}

.cli-card code .hl {
  color: var(--amber-300);
}
.cli-card code .dim {
  color: var(--ink-500);
}

/* USDC section */
.usdc {
  padding: 100px 0;
}

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

.usdc-card {
  background: var(--ink-850);
  border: 1px solid var(--ink-700);
  padding: 28px;
}

.field-note {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--ink-500);
  margin-left: 8px;
}

.usdc-card .field {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--ink-500);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.usdc-address-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-mono);
  font-size: 0.82rem;
  color: var(--ink-200);
  word-break: break-all;
  line-height: 1.6;
}

.usdc-address-row code {
  font-family: var(--f-mono);
  color: var(--amber-300);
}

.usdc-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--ink-700);
}

.usdc-meta dt {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--ink-500);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.usdc-meta dd {
  font-size: 0.9rem;
  color: var(--ink-200);
}

.usdc-meta dd strong {
  color: var(--amber-400);
  font-weight: 500;
}

/* Hub */
.hub {
  padding: 100px 0;
}

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

.hub-card {
  background: var(--ink-850);
  border: 1px solid var(--ink-700);
  padding: 28px 24px;
  transition: border-color 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
}

.hub-card:hover {
  border-color: var(--ink-600);
  transform: translateY(-2px);
}

.hub-card-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--ink-400);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.hub-card h3 {
  font-family: var(--f-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink-100);
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.hub-card > p {
  font-size: 0.9rem;
  color: var(--ink-400);
  line-height: 1.65;
  margin-bottom: 18px;
}

.hub-meta {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.hub-meta div {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 12px;
  align-items: baseline;
}

.hub-meta dt {
  font-family: var(--f-mono);
  font-size: 0.68rem;
  color: var(--ink-500);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hub-meta dd {
  font-size: 0.85rem;
  color: var(--ink-200);
  word-break: break-all;
}

.hub-meta code {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--amber-300);
}

.hub-code {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  line-height: 1.75;
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
  padding: 14px 16px;
  margin-bottom: 18px;
  overflow-x: auto;
  color: var(--ink-200);
}

.hub-code .cmd {
  color: var(--ink-100);
}
.hub-code .arg {
  color: var(--ink-300);
}
.hub-code .flag {
  color: var(--amber-300);
}
.hub-code .comment {
  color: var(--ink-500);
  font-style: italic;
}

.hub-link {
  margin-top: auto;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--amber-400);
  letter-spacing: 0.04em;
}

.hub-link:hover {
  color: var(--amber-300);
}

/* Features grid */
.features {
  padding: 100px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--ink-850);
  border: 1px solid var(--ink-700);
  padding: 24px;
}

.feature-card h3 {
  font-family: var(--f-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink-100);
  margin-bottom: 6px;
}

.feature-card p {
  font-size: 0.86rem;
  color: var(--ink-400);
  line-height: 1.6;
}

/* Bottom install */
.bottom-install {
  padding: 100px 28px 80px;
  margin-bottom: -60px;
  text-align: center;
  background: var(--amber-500);
  position: relative;
  z-index: 2;
}

.bottom-install .section-title {
  color: var(--ink-950);
  font-size: clamp(3rem, 8vw, 6rem);
  letter-spacing: -0.03em;
  margin-bottom: 40px;
}

.bottom-install .install-block {
  text-align: left;
  max-width: 640px;
  border-color: rgba(4, 6, 12, 0.15);
}

.bottom-install .install-label {
  background: var(--ink-950);
}

.bottom-install .install-label span {
  color: var(--ink-200);
}

.bottom-install .copy-btn {
  color: var(--ink-200);
  border-color: var(--ink-700);
}

.bottom-install .copy-btn:hover {
  background: var(--ink-800);
}

/* Footer */
.footer-upper {
  border-top: 1px solid var(--ink-800);
  padding: 160px 0 48px;
  background: var(--ink-900);
  position: relative;
  z-index: 1;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.footer-logo {
  font-family: var(--f-display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--ink-100);
  margin-bottom: 12px;
}

.footer-logo span {
  color: var(--amber-400);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.footer-col h4 {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-500);
  margin-bottom: 10px;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-400);
  padding: 3px 0;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--ink-100);
}

.footer-giant {
  border-top: 1px solid var(--ink-800);
  padding: 36px 0;
  text-align: center;
  font-family: var(--f-display);
  font-size: clamp(5rem, 14vw, 12rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 1;
  color: var(--ink-800);
  user-select: none;
  overflow: hidden;
}

.footer-bottom {
  border-top: 1px solid var(--ink-800);
  max-width: var(--container);
  margin: 0 auto;
  padding: 20px 28px;
  display: flex;
  justify-content: space-between;
  font-family: var(--f-mono);
  font-size: 0.68rem;
  color: var(--ink-500);
  letter-spacing: 0.02em;
}

/* Responsive */
@media (max-width: 768px) {
  .flow {
    grid-template-columns: 1fr;
  }
  .cli-grid {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .usdc-meta {
    grid-template-columns: 1fr;
  }
  .token-grid {
    grid-template-columns: 1fr;
  }
  .hub-grid {
    grid-template-columns: 1fr;
  }
  .nav-links a:not(.nav-cta) {
    display: none;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}