:root {
  --paper: #fbfcfe;
  --paper-dim: #eef3f8;
  --ink: #16202b;
  --muted: #5d6b7a;
  --accent: #0284c7;
  --accent-dark: #0369a1;
  --dark: #101820;
  --line: #dce5ee;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, Menlo, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--paper);
  background-image: radial-gradient(rgba(22, 32, 43, 0.05) 1px, transparent 1px);
  background-size: 22px 22px;
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent); }
a:hover { color: var(--accent-dark); }

h1, h2 {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.08;
}

.kicker {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.kicker-light { color: #7dd3fc; }

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1160px;
  margin: 0 auto;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--ink);
  text-decoration: none;
}

.brand img { width: 30px; height: 30px; border-radius: 7px; }

.topbar nav { display: flex; align-items: center; gap: 26px; }

.topbar nav a {
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
}

.topbar nav a:hover { color: var(--ink); }
.topbar nav a.nav-gh { color: var(--accent); }
.topbar nav a.nav-gh:hover { color: var(--accent-dark); }

/* Buttons */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #f4f9fd;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border: 2px solid var(--ink);
  border-radius: 6px;
  box-shadow: 4px 4px 0 var(--ink);
  text-decoration: none;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.btn:hover {
  color: #f4f9fd;
  background: var(--accent-dark);
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
}

.btn-ghost:hover {
  background: var(--paper-dim);
  color: var(--ink);
}

/* Hero */
.hero {
  max-width: 1160px;
  margin: 0 auto;
  padding: 88px 28px 96px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.4rem);
  margin-bottom: 24px;
}

.lead {
  font-size: 1.12rem;
  color: var(--muted);
  max-width: 470px;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.hero-meta {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.hero-shot { text-align: center; }

.hero-shot img {
  width: auto;
  max-height: 580px;
  margin: 0 auto;
  border: 2px solid var(--ink);
  border-radius: 18px;
  box-shadow: 10px 10px 0 rgba(16, 24, 32, 0.18);
  transform: rotate(1.6deg);
}

/* Features */
.features {
  max-width: 1160px;
  margin: 0 auto;
  padding: 80px 28px 96px;
  border-top: 1px solid var(--line);
}

.features h2 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  max-width: 620px;
  margin-bottom: 56px;
}

.feature-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 72px;
}

.feature-list li {
  display: flex;
  gap: 22px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.feature-list .num {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  padding-top: 3px;
}

.feature-list h3 {
  font-family: var(--serif);
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.feature-list p {
  color: var(--muted);
  font-size: 0.95rem;
}

/* Screenshots */
.screenshots {
  background: var(--dark);
  color: #eef4fa;
  padding: 88px 28px 104px;
}

.screenshots-head,
.shots {
  max-width: 1160px;
  margin-left: auto;
  margin-right: auto;
}

.screenshots h2 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  margin-bottom: 64px;
}

.shots {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  align-items: start;
}

.shots figure { text-align: center; }

.shots img {
  width: auto;
  max-width: 100%;
  max-height: 500px;
  margin: 0 auto 16px;
  border: 2px solid #2c3a47;
  border-radius: 16px;
}

.shots figcaption {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: #8b99a8;
}

/* Setup */
.setup {
  max-width: 1160px;
  margin: 0 auto;
  padding: 96px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.setup h2 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  margin-bottom: 32px;
}

.steps {
  list-style: none;
  counter-reset: step;
  margin-bottom: 36px;
}

.steps li {
  counter-increment: step;
  position: relative;
  padding: 12px 0 12px 44px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 14px;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--accent);
}

.terminal {
  background: var(--dark);
  border: 2px solid var(--ink);
  border-radius: 12px;
  box-shadow: 8px 8px 0 rgba(16, 24, 32, 0.18);
  overflow: hidden;
}

.terminal-bar {
  display: flex;
  gap: 7px;
  padding: 12px 16px;
  border-bottom: 1px solid #2c3a47;
}

.terminal-bar i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #2c3a47;
}

.terminal-bar i:first-child { background: var(--accent); }

.terminal pre {
  padding: 24px 26px 28px;
  overflow-x: auto;
}

.terminal code {
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.8;
  color: #eef4fa;
}

.term-dim { color: #8b99a8; }

/* Store links */
.stores {
  max-width: 1160px;
  margin: 0 auto;
  padding: 80px 28px 96px;
  border-top: 1px solid var(--line);
  text-align: center;
}

.stores h2 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  margin-bottom: 40px;
}

.store-badges {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--dark);
  color: #eef4fa;
  padding: 12px 24px;
  border: 2px solid var(--ink);
  border-radius: 10px;
  box-shadow: 4px 4px 0 var(--ink);
  text-decoration: none;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.store-badge:hover {
  color: #eef4fa;
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.store-badge svg {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.store-badge span {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.2;
}

.store-badge small {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #8b99a8;
}

.stores-note {
  color: var(--muted);
  font-size: 0.9rem;
}

/* Donate */
.donate {
  max-width: 1160px;
  margin: 0 auto;
  padding: 80px 28px 104px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 72px;
  align-items: center;
}

.donate h2 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  margin-bottom: 24px;
}

.donate-lead {
  color: var(--muted);
  max-width: 480px;
  margin-bottom: 32px;
}

.donate-address {
  display: inline-block;
  background: var(--paper-dim);
  border: 2px solid var(--ink);
  border-radius: 10px;
  box-shadow: 4px 4px 0 var(--ink);
  padding: 16px 20px;
}

.donate-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.donate-address code {
  font-family: var(--mono);
  font-size: 0.85rem;
  word-break: break-all;
  color: var(--ink);
}

.donate-qr { text-align: center; }

.donate-qr img {
  width: 240px;
  height: auto;
  margin: 0 auto 14px;
  background: #fff;
  padding: 14px;
  border: 2px solid var(--ink);
  border-radius: 16px;
  box-shadow: 8px 8px 0 rgba(16, 24, 32, 0.18);
  transform: rotate(-1.6deg);
}

.donate-qr figcaption {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

/* Footer */
.footer {
  max-width: 1160px;
  margin: 0 auto;
  padding: 28px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.88rem;
}

/* Responsive */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 56px; padding: 64px 28px 72px; }
  .hero-shot img { transform: none; }
  .setup { grid-template-columns: 1fr; gap: 48px; }
  .donate { grid-template-columns: 1fr; gap: 48px; }
  .donate-qr img { transform: none; }
  .shots { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 640px) {
  .feature-list { grid-template-columns: 1fr; }
  .topbar nav { gap: 16px; }
  .topbar nav a:not(.nav-gh) { display: none; }
}