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

:root {
  --bg: #000000;
  --surface: #0A0A0A;
  --divider: #1A1A1A;
  --text: #39FF14;
  --text-secondary: #666666;
  --alert: #FF3B30;
  --max-width: 640px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'SF Mono', SFMono-Regular, ui-monospace, 'Cascadia Code', 'Fira Code', Menlo, monospace;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--text); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Nav ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(0,0,0,0.9);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--divider);
}
nav .nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
nav .logo {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
nav .nav-links { display: flex; align-items: center; gap: 1.5rem; }
nav .nav-links a {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
nav .nav-links a:hover { color: var(--text); text-decoration: none; }

/* ── Hero ── */
.hero {
  padding: 7rem 1.5rem 3rem;
  text-align: center;
  max-width: var(--max-width);
  margin: 0 auto;
}
.hero h1 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1.3;
  margin-bottom: 1.5rem;
}
.hero .tagline {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

/* ── Receipt mockup ── */
.receipt {
  background: var(--surface);
  border: 1px solid var(--divider);
  padding: 2rem 1.5rem;
  max-width: 320px;
  margin: 0 auto 2.5rem;
  text-align: left;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.receipt .receipt-header {
  text-align: center;
  font-weight: 700;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  letter-spacing: 0.1em;
}
.receipt .receipt-divider {
  border: none;
  border-top: 1px dashed var(--divider);
  margin: 1rem 0;
}
.receipt .receipt-row {
  display: flex;
  justify-content: space-between;
  padding: 0.25rem 0;
  color: var(--text-secondary);
}
.receipt .receipt-row .value { color: var(--text); font-weight: 500; }
.receipt .receipt-status {
  text-align: center;
  font-weight: 700;
  font-size: 1rem;
  padding: 1rem 0 0.5rem;
  letter-spacing: 0.15em;
}
.receipt .receipt-status.pass { color: var(--text); }
.receipt .receipt-status.fail { color: var(--alert); }
.receipt .receipt-footer {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.625rem;
  margin-top: 1rem;
  letter-spacing: 0.1em;
}

/* ── App Store badge ── */
.store-badge {
  display: inline-block;
  height: 44px;
  transition: opacity 0.2s;
}
.store-badge:hover { opacity: 0.8; }
.store-badge img { height: 44px; }

/* ── Features ── */
.features {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--divider);
  border: 1px solid var(--divider);
}
.feature {
  background: var(--bg);
  padding: 1.5rem;
}
.feature h3 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}
.feature p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.6;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* ── Section ── */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}
.section h2 {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

/* ── Steps ── */
.steps { display: flex; flex-direction: column; gap: 1.5rem; }
.step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}
.step-number {
  flex-shrink: 0;
  width: 1.5rem; height: 1.5rem;
  border: 1px solid var(--text);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}
.step-content h3 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}
.step-content p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* ── Privacy banner ── */
.privacy-banner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}
.privacy-banner-inner {
  border: 1px solid var(--divider);
  padding: 2rem;
  text-align: center;
}
.privacy-banner-inner h2 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}
.privacy-banner-inner p {
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--divider);
  padding: 1.5rem;
  text-align: center;
}
footer .footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
footer .footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.75rem;
}
footer .footer-links a {
  color: var(--text-secondary);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
footer .footer-links a:hover { color: var(--text); }
footer .copyright {
  font-size: 0.625rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Legal pages ── */
.legal {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 1.5rem 3rem;
}
.legal h1 {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}
.legal .meta {
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2rem;
}
.legal h2 {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}
.legal h3 {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}
.legal p, .legal li {
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  line-height: 1.7;
}
.legal ul, .legal ol {
  padding-left: 1.25rem;
  margin-bottom: 1rem;
}
.legal table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.75rem;
}
.legal th, .legal td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--divider);
}
.legal th {
  color: var(--text);
  font-weight: 700;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.legal td { color: var(--text-secondary); }
.legal hr {
  border: none;
  border-top: 1px solid var(--divider);
  margin: 1.5rem 0;
}
.legal a { color: var(--text); }
.legal strong { color: var(--text); font-weight: 700; }
.legal em { color: var(--text-secondary); font-style: italic; }

/* ── Responsive ── */
@media (max-width: 600px) {
  .features { grid-template-columns: 1fr; }
  .hero { padding: 6rem 1.25rem 2rem; }
  .receipt { max-width: 280px; }
  .section, .privacy-banner, .legal { padding-left: 1.25rem; padding-right: 1.25rem; }
}