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

:root {
  --bg: #0a0a0a;
  --bg2: #111111;
  --bg3: #1a1a1a;
  --border: #222;
  --text: #f0f0f0;
  --muted: #888;
  --accent: #c8f135;
  --accent2: #a8d420;
  --font: 'Inter', sans-serif;
  --mono: 'JetBrains Mono', monospace;
}

html { scroll-behavior: smooth; }

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

a { color: inherit; text-decoration: none; }

/* NAV */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  z-index: 100;
}

.logo {
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

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

.btn-nav {
  background: var(--accent);
  color: #000;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.5rem 1.1rem;
  border-radius: 6px;
  transition: background 0.15s;
}
.btn-nav:hover { background: var(--accent2); }

/* HERO */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  max-width: 1100px;
  margin: 0 auto;
  padding: 6rem 2rem 5rem;
}

.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.3rem 0.7rem;
  border-radius: 4px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.03em;
}

.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 480px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  font-weight: 700;
  padding: 0.85rem 1.75rem;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: background 0.15s, transform 0.1s;
}
.btn-primary:hover { background: var(--accent2); transform: translateY(-1px); }

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 0.85rem 1.5rem;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: border-color 0.15s, color 0.15s;
}
.btn-ghost:hover { border-color: #555; color: var(--text); }

.social-proof {
  font-size: 0.8rem;
  color: #555;
  font-family: var(--mono);
}

/* PHONE FRAME */
.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-frame {
  border: 2px solid var(--border);
  border-radius: 36px;
  overflow: hidden;
  width: 240px;
  box-shadow: 0 0 60px rgba(200, 241, 53, 0.08), 0 20px 60px rgba(0,0,0,0.5);
}

.phone-frame img {
  width: 100%;
  display: block;
}

/* PROBLEM */
.problem {
  text-align: center;
  padding: 4rem 2rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
}

.problem-text {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.4;
  max-width: 600px;
  margin: 0 auto;
}

.problem-text em {
  font-style: normal;
  color: var(--accent);
}

/* HOW */
.how {
  max-width: 1100px;
  margin: 0 auto;
  padding: 6rem 2rem;
}

.how h2, .features h2, .who h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 4rem;
}

.step {
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg2);
}

.step-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 1rem;
}

.step h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.step p { color: var(--muted); font-size: 0.9rem; line-height: 1.6; }

.desktop-screenshot {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.desktop-screenshot img { width: 100%; display: block; }

/* FEATURES */
.features {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 6rem 2rem;
}

.features > * {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.features h2 { max-width: 1100px; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 1100px;
}

.feature {
  padding: 1.75rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg3);
}

.feat-icon { font-size: 1.5rem; display: block; margin-bottom: 0.75rem; }

.feature h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.4rem; }
.feature p { color: var(--muted); font-size: 0.85rem; line-height: 1.6; }

/* WHO */
.who {
  max-width: 700px;
  margin: 0 auto;
  padding: 6rem 2rem;
  text-align: center;
}

.who p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

blockquote {
  font-size: 1rem;
  color: var(--text);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.5rem;
  text-align: left;
  background: var(--bg2);
  border-radius: 0 8px 8px 0;
  font-style: italic;
}

/* BUY */
.buy {
  padding: 6rem 2rem;
  display: flex;
  justify-content: center;
  background: var(--bg2);
  border-top: 1px solid var(--border);
}

.buy-card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  max-width: 420px;
  width: 100%;
  background: var(--bg3);
  box-shadow: 0 0 80px rgba(200, 241, 53, 0.06);
}

.buy-header { margin-bottom: 1.5rem; }

.buy-header h2 {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--muted);
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.price {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--muted);
}

.buy-features {
  list-style: none;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.buy-features li {
  font-size: 0.9rem;
  color: var(--muted);
  padding-left: 1.25rem;
  position: relative;
}

.buy-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.btn-buy {
  display: block;
  text-align: center;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  font-size: 1rem;
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  transition: background 0.15s;
}
.btn-buy:hover { background: var(--accent2); }

.buy-note {
  text-align: center;
  font-size: 0.75rem;
  color: #555;
  font-family: var(--mono);
}

/* FOOTER */
footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: #555;
}
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }

/* RESPONSIVE */
@media (max-width: 768px) {
  nav { padding: 1rem 1.25rem; }
  .hero { grid-template-columns: 1fr; gap: 3rem; padding: 3rem 1.25rem; }
  .hero-visual { order: -1; }
  .phone-frame { width: 200px; }
  .steps { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .how, .who { padding: 4rem 1.25rem; }
  .buy { padding: 4rem 1.25rem; }
}

@media (max-width: 480px) {
  .features-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-ghost { text-align: center; }
}