:root {
  --bg: #0b0d12;
  --bg-alt: #11141b;
  --surface: #161a23;
  --border: #232936;
  --text: #e8ecf3;
  --muted: #9aa3b2;
  --accent: #22c55e;
  --accent-red: #ef4444;
  --radius: 12px;
  --max-width: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 13, 18, 0.85);
  backdrop-filter: saturate(150%) blur(12px);
  -webkit-backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--muted);
  font-size: 14px;
  transition: color 0.15s ease;
}

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

/* Hero */
.hero {
  padding: 120px 0 100px;
  text-align: center;
  background: radial-gradient(ellipse at top, rgba(34, 197, 94, 0.08), transparent 60%);
}

.eyebrow {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 16px;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 60px);
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin: 0 0 24px;
  font-weight: 700;
}

.lede {
  font-size: 18px;
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 40px;
}

.cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background: #fff;
  transform: translateY(-1px);
}

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

.btn-ghost:hover {
  border-color: var(--muted);
  background: var(--surface);
}

/* Sections */
.section {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.section-alt {
  background: var(--bg-alt);
}

.section h2 {
  font-size: 32px;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  font-weight: 600;
}

.section h3 {
  font-size: 18px;
  margin: 0 0 16px;
  font-weight: 600;
}

.section p {
  color: var(--muted);
  font-size: 16px;
  max-width: 620px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: start;
}

@media (max-width: 760px) {
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .nav-links {
    gap: 18px;
  }
  .hero {
    padding: 80px 0 60px;
  }
}

.check-list, .feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--muted);
}

.check-list li, .feature-list li {
  position: relative;
  padding: 8px 0 8px 28px;
  font-size: 15px;
}

.check-list li::before, .feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 16px;
  height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2322c55e' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-size: contain;
}

/* Product card */
.product-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  margin-top: 24px;
}

.product-icon {
  width: 80px;
  height: 80px;
  border-radius: 18px;
  background: linear-gradient(135deg, #1f2937, #0f172a);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}

.product-body h3 {
  font-size: 24px;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.link-arrow {
  display: inline-block;
  margin-top: 12px;
  color: var(--accent);
  font-weight: 500;
  font-size: 15px;
  transition: transform 0.15s ease;
}

.link-arrow:hover {
  transform: translateX(2px);
}

/* Store buttons */
.store-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  background: #000;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  color: #fff;
  text-decoration: none;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
  min-width: 170px;
  height: 54px;
  box-sizing: border-box;
}

.store-btn:hover {
  border-color: rgba(255, 255, 255, 0.28);
  transform: translateY(-1px);
}

.store-btn svg {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}

.store-btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.1;
  text-align: left;
}

.store-btn-pre {
  font-size: 10px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.store-btn-name {
  font-size: 16px;
  font-weight: 600;
  margin-top: 3px;
  letter-spacing: -0.01em;
}

.store-btn-web {
  background: linear-gradient(135deg, #1e3a8a, #1e40af);
  border-color: rgba(96, 165, 250, 0.25);
}

.store-btn-web:hover {
  border-color: rgba(96, 165, 250, 0.5);
}

@media (max-width: 600px) {
  .product-card {
    grid-template-columns: 1fr;
    padding: 24px;
  }
}

/* Contact */
.contact {
  text-align: center;
}

.contact p {
  margin: 0 auto 28px;
}

.email {
  display: inline-block;
  font-size: 20px;
  font-weight: 500;
  color: var(--accent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

.email:hover {
  border-bottom-color: var(--accent);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: var(--bg);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-row p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

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