:root {
  --bg-dark: #0A0A0F;
  --bg-card: #16161D;
  --accent: #CAFF00;
  --accent-hover: #D4FF33;
  --text-primary: #FFFFFF;
  --text-secondary: #8A8A99;
  --text-dim: rgba(255,255,255,0.55);
  --border-subtle: rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.14);
  --gradient-accent: linear-gradient(135deg, #CAFF00, #00D4FF);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(20px);
  background: rgba(10, 10, 15, 0.72);
  border-bottom: 1px solid var(--border-subtle);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 800;
}
.logo-dot {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--gradient-accent);
  display: grid;
  place-items: center;
  font-size: 16px;
  color: var(--bg-dark);
}
.header-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.header-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}
.header-links a:hover { color: var(--accent); }
.header-cta {
  padding: 8px 18px;
  border-radius: 22px;
  background: var(--accent);
  color: var(--bg-dark) !important;
  font-weight: 700;
  font-size: 14px;
  transition: transform 0.2s, background 0.2s;
}
.header-cta:hover { background: var(--accent-hover); transform: translateY(-1px); }

/* ---------- Hero ---------- */
.hero {
  padding: 80px 0 100px;
  background:
    radial-gradient(ellipse at 30% 0%, rgba(202,255,0,0.10), transparent 55%),
    radial-gradient(ellipse at 80% 30%, rgba(0,212,255,0.08), transparent 60%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid rgba(202,255,0,0.4);
  background: rgba(202,255,0,0.07);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}
.hero h1 span { background: var(--gradient-accent); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub {
  font-size: clamp(1.05rem, 1.4vw, 1.18rem);
  color: var(--text-dim);
  max-width: 540px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 28px;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  transition: transform 0.2s, background 0.2s, border-color 0.2s;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg-dark);
  box-shadow: 0 10px 32px rgba(202,255,0,0.25);
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); }
.btn-secondary {
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.hero-meta {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  color: var(--text-secondary);
  font-size: 13px;
}
.hero-meta b { color: var(--text-primary); font-weight: 700; }

.hero-screenshot-wrap {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
}
.hero-screenshot-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(202,255,0,0.05));
  pointer-events: none;
}
.hero-screenshot-wrap img {
  width: 100%;
  height: auto;
  display: block;
}
.hero-screenshot-frame {
  background: linear-gradient(180deg, #1F1F28, #16161D);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--border-subtle);
}
.hero-screenshot-frame .dot {
  width: 11px; height: 11px; border-radius: 50%;
  background: rgba(255,255,255,0.15);
}
.hero-screenshot-frame .dot:nth-child(1) { background: #ff5f57; }
.hero-screenshot-frame .dot:nth-child(2) { background: #febc2e; }
.hero-screenshot-frame .dot:nth-child(3) { background: #28c840; }

/* ---------- Section common ---------- */
section.block {
  padding: 80px 0;
}
.section-eyebrow {
  text-align: center;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 14px;
}
.section-title {
  text-align: center;
  font-size: clamp(2rem, 3.8vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.section-lead {
  text-align: center;
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 auto 56px;
}

/* ---------- Features ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 28px 24px;
  transition: border-color 0.25s, transform 0.25s;
}
.feature-card:hover {
  border-color: rgba(202,255,0,0.32);
  transform: translateY(-3px);
}
.feature-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(202,255,0,0.1);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-size: 22px;
  margin-bottom: 18px;
}
.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14.5px;
  color: var(--text-dim);
  line-height: 1.55;
}

/* ---------- How it works ---------- */
.how-block {
  background: linear-gradient(180deg, transparent, rgba(202,255,0,0.025));
}
.how-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 12px;
}
.how-step {
  text-align: center;
  padding: 24px 18px;
}
.how-num {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg-dark);
  font-weight: 800;
  font-size: 16px;
  margin-bottom: 16px;
}
.how-step h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.how-step p {
  font-size: 14px;
  color: var(--text-dim);
}

/* ---------- Tech / privacy block ---------- */
.tech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}
.tech-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.tech-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
}
.tech-list li b { color: var(--accent); font-weight: 700; display: block; margin-bottom: 4px; }
.tech-list li span { color: var(--text-dim); font-size: 14.5px; }
.tech-stat-block {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 32px;
}
.tech-stat-block h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 22px;
}
.tech-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.tech-stat-row:last-child { border-bottom: none; }
.tech-stat-row span:first-child { color: var(--text-dim); font-size: 14.5px; }
.tech-stat-row b { color: var(--accent); font-weight: 700; }

/* ---------- Download CTA ---------- */
.cta-block {
  text-align: center;
  padding: 80px 0 100px;
  background:
    radial-gradient(ellipse at 50% 50%, rgba(202,255,0,0.10), transparent 60%);
}
.cta-block h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.cta-block p {
  color: var(--text-dim);
  font-size: 1.08rem;
  margin-bottom: 32px;
}
.cta-system-req {
  margin-top: 24px;
  color: var(--text-secondary);
  font-size: 13px;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 32px 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 13.5px;
}
.site-footer a {
  color: var(--accent);
  text-decoration: none;
}
.site-footer a:hover { text-decoration: underline; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .hero { padding: 56px 0 72px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .how-grid { grid-template-columns: 1fr 1fr; }
  .tech-grid { grid-template-columns: 1fr; }
  section.block { padding: 64px 0; }
  .header-links a:not(.header-cta) { display: none; }
}
@media (max-width: 560px) {
  .features-grid { grid-template-columns: 1fr; }
  .how-grid { grid-template-columns: 1fr; }
  .container { padding: 0 18px; }
  .hero h1 { font-size: 2rem; }
}