:root {
  --bg: #ffffff;
  --fg: #111111;
  --muted: #666666;
  --border: #eeeeee;
  --accent-blue: #0070f3;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --fg: #ededed;
    --muted: #a0a0a0;
    --border: #333333;
  }
}

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

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
}

h1, h2, h3 {
  font-weight: 500;
  line-height: 1.2;
}

h1 {
  font-size: 38px;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 18px;
}

h3 {
  font-size: 16px;
}

header {
  padding: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: -0.02em;
}

.logo-icon {
  background: var(--fg);
  width: 24px;
  height: 24px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 4rem 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 2rem;
  text-transform: uppercase;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
  min-height: 70vh;
}

.hero-content p {
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 2.5rem;
  max-width: 540px;
}

.cta-group {
  display: flex;
  gap: 1rem;
}

.btn {
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  display: inline-block;
}

.btn-primary {
  background: var(--fg);
  color: var(--bg);
}

.btn-secondary {
  border: 1px solid var(--border);
  color: var(--fg);
}

.mockup-container {
  display: flex;
  justify-content: center;
}

.phone-mockup {
  width: 280px;
  height: 560px;
  border: 12px solid var(--fg);
  border-radius: 40px;
  background: var(--bg);
  padding: 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.mockup-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: #f0f0f0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  margin-bottom: 1rem;
}

.mockup-name {
  font-weight: 500;
  font-size: 20px;
  margin-bottom: 4px;
}

.mockup-title {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 1.5rem;
}

.mockup-icons {
  display: flex;
  gap: 12px;
  margin-bottom: 2rem;
}

.mockup-icon-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
}

.mockup-btn {
  width: 100%;
  padding: 12px;
  background: var(--fg);
  color: var(--bg);
  border-radius: 8px;
  text-align: center;
  font-size: 13px;
  margin-bottom: 3rem;
}

.mockup-qr {
  width: 100px;
  height: 100px;
  opacity: 0.1;
}

.value-props {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.prop-card {
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.prop-icon {
  width: 24px;
  height: 24px;
  margin-bottom: 1.5rem;
  color: var(--fg);
}

.how-it-works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.step {
  border-left: 2px solid var(--fg);
  padding-left: 1.5rem;
}

.step-title {
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 450px));
  gap: 2rem;
  justify-content: center;
}

.price-card {
  padding: 3rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  position: relative;
}

.price-card.pro {
  border: 2px solid var(--accent-blue);
}

.badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--accent-blue);
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.price-tag {
  font-size: 48px;
  font-weight: 500;
  margin: 1.5rem 0;
}

.price-tag span {
  font-size: 16px;
  color: var(--muted);
}

footer {
  border-top: 1px solid var(--border);
  padding: 4rem 2rem;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
}

.footer-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 720px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }
  .cta-group {
    justify-content: center;
  }
  h1 {
    font-size: 32px;
  }
}