:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #2f81f7;
  --accent-hover: #58a6ff;
  --danger: #f85149;
  --warning: #d29922;
  --success: #3fb950;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

/* NAV */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.5px;
  cursor: pointer;
}
.nav-logo:hover { color: var(--text); opacity: 0.8; }

.nav-logo span { color: var(--accent); }

.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a { color: var(--muted); font-size: 0.9rem; }
.nav-links a:hover { color: var(--text); }

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 0.6rem 1.4rem;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
  border: none;
}
.btn:hover { opacity: 0.85; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-lg { padding: 0.8rem 2rem; font-size: 1.05rem; }

/* SECTIONS */
section { padding: 5rem 2rem; }
.container { max-width: 900px; margin: 0 auto; }

/* HERO */
.hero {
  text-align: center;
  padding: 6rem 2rem 4rem;
  background: linear-gradient(180deg, #0d1117 0%, #111827 100%);
}

.hero .eyebrow {
  display: inline-block;
  background: rgba(47, 129, 247, 0.15);
  color: var(--accent);
  border: 1px solid rgba(47, 129, 247, 0.3);
  border-radius: 20px;
  padding: 0.25rem 0.9rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -1px;
}

.hero h1 em { color: var(--accent); font-style: normal; }

.hero p {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.hero-cta { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* PROBLEM */
.problem { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.problem h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 1rem; }
.problem .lead { color: var(--muted); font-size: 1.05rem; margin-bottom: 2.5rem; max-width: 650px; }

.pain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.pain-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
}

.pain-card .icon { font-size: 1.4rem; margin-bottom: 0.5rem; }
.pain-card h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.4rem; color: var(--danger); }
.pain-card p { font-size: 0.875rem; color: var(--muted); }

/* SOLUTION */
.solution h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 1rem; }
.solution .lead { color: var(--muted); font-size: 1.05rem; margin-bottom: 2.5rem; max-width: 650px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
}

.feature-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--accent-hover); }
.feature-card p { font-size: 0.875rem; color: var(--muted); }

/* DEMO CTA */
.demo-cta {
  text-align: center;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.demo-cta h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 1rem; }
.demo-cta p { color: var(--muted); font-size: 1.05rem; margin-bottom: 2rem; }

/* PRICING PREVIEW */
.pricing-preview { text-align: center; }
.pricing-preview h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 0.75rem; }
.pricing-preview p { color: var(--muted); margin-bottom: 2rem; }

/* PRICING PAGE */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.pricing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s, transform 0.15s;
  cursor: pointer;
  color: var(--text);
  text-decoration: none;
}
.pricing-card:hover { border-color: var(--accent-hover); transform: translateY(-2px); }
.pricing-card .btn { display: block; text-align: center; margin-top: auto; }

.pricing-card.featured {
  border-color: var(--accent);
  border-width: 2px;
}

.pricing-card .badge {
  display: inline-block;
  align-self: flex-start;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.8rem;
  border-radius: 20px;
  white-space: nowrap;
  margin-bottom: 0.75rem;
}

.pricing-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.pricing-card .price { font-size: 2.2rem; font-weight: 800; margin: 0.75rem 0 0.25rem; }
.pricing-card .price span { font-size: 1rem; font-weight: 400; color: var(--muted); }
.pricing-card .desc { color: var(--muted); font-size: 0.875rem; margin-bottom: 1.5rem; }

.pricing-card ul { list-style: none; margin-bottom: 2rem; flex: 1; }
.pricing-card ul li { font-size: 0.875rem; padding: 0.35rem 0; color: var(--muted); }
.pricing-card ul li::before { content: "✓ "; color: var(--success); font-weight: 700; }

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

footer a { color: var(--muted); }
footer a:hover { color: var(--text); }

/* FORM */
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 600; margin-bottom: 0.4rem; color: var(--muted); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.9rem;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

/* PAGE HERO (inner pages) */
.page-hero { padding: 4rem 2rem 3rem; }
.page-hero h1 { font-size: 2rem; font-weight: 800; margin-bottom: 0.5rem; }
.page-hero p { color: var(--muted); font-size: 1.05rem; }

/* RESPONSIVE */
@media (max-width: 640px) {
  nav { padding: 1rem; }
  .nav-links { gap: 1rem; }
  section { padding: 3rem 1.25rem; }
  .hero { padding: 4rem 1.25rem 3rem; }
}