:root {
  --bg: #f0f4f8;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --primary: #1d4ed8;
  --primary-hover: #1e40af;
  --accent-bg: #eef2ff;
  --dark-bg: #0f172a;
  --border: #cbd5e1;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(15,23,42,.07);
}

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

body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container { width: min(1140px, 92%); margin: 0 auto; }

/* NAV */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-row { display: flex; align-items: center; gap: 1.5rem; padding: .9rem 0; }
.logo { font-weight: 800; font-size: 1.15rem; }
.logo span { color: var(--primary); }
.nav-links { display: flex; gap: 1.4rem; margin-left: auto; }
.nav-links a { color: var(--muted); text-decoration: none; font-weight: 500; font-size: .95rem; }
.nav-links a:hover { color: var(--text); }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  text-decoration: none; border: none; border-radius: var(--radius);
  background: var(--primary); color: #fff;
  padding: .72rem 1.3rem; font-weight: 600; font-size: .95rem; cursor: pointer;
  transition: background .15s;
}
.btn:hover { background: var(--primary-hover); }
.btn-sm { padding: .5rem 1rem; font-size: .9rem; }
.btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--accent-bg); }

/* HERO */
.hero { padding: 3rem 0 1rem; text-align: center; }
.badge {
  display: inline-block; background: var(--accent-bg); color: var(--primary);
  padding: .35rem .85rem; border-radius: 99px; font-size: .85rem; font-weight: 600; margin-bottom: 1rem;
}
.hero h1 { font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.15; margin-bottom: 1rem; }
.lead { color: var(--muted); max-width: 58ch; margin: 0 auto 1.4rem; font-size: 1.05rem; }
.hero-actions { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }
.hero-image { margin-top: 2.5rem; }
.hero-image img {
  width: 100%; max-width: 960px; height: 420px; object-fit: cover;
  border-radius: 16px; border: 1px solid var(--border); box-shadow: var(--shadow);
}

/* STATS */
.stats-bar { padding: 1.6rem 0; background: var(--surface); border-bottom: 1px solid var(--border); }
.stats-row { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 1rem; text-align: center; }
.stat strong { display: block; font-size: 1.5rem; color: var(--primary); }
.stat span { color: var(--muted); font-size: .9rem; }

/* SECTIONS */
.section { padding: 3.5rem 0; }
.section-header { text-align: center; margin-bottom: 2rem; }
.section-header h2 { font-size: 1.8rem; margin-bottom: .4rem; }
.section-header p { color: var(--muted); }

/* FEATURES */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.feature {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.2rem; box-shadow: var(--shadow);
}
.feature-icon { font-size: 1.6rem; margin-bottom: .5rem; }
.feature h3 { margin-bottom: .35rem; font-size: 1.05rem; }
.feature p { color: var(--muted); font-size: .93rem; margin: 0; }

/* PRICING */
.section-dark { background: var(--dark-bg); color: #e2e8f0; }
.section-dark h3 { color: #fff; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; padding: 1rem 0; }
.plan {
  background: #1e293b; border: 1px solid #334155; border-radius: var(--radius);
  padding: 1.5rem; position: relative;
}
.plan-featured { border-color: var(--primary); background: #1e293b; }
.plan-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: #fff; padding: .22rem .8rem; border-radius: 99px;
  font-size: .78rem; font-weight: 700;
}
.price { font-size: 2.2rem; font-weight: 800; color: #fff; margin: .6rem 0 1rem; }
.price span { font-size: .9rem; font-weight: 400; color: #94a3b8; }
.plan ul { list-style: none; display: grid; gap: .45rem; }
.plan li { color: #cbd5e1; font-size: .93rem; }
.plan li::before { content: "✓ "; color: #22d3ee; font-weight: 700; }

/* ABOUT */
.about-split { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start; }
.about-split p { color: var(--muted); margin-top: .6rem; }
.testimonial-stack { display: grid; gap: 1rem; }
blockquote {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.2rem; box-shadow: var(--shadow);
  font-size: .95rem; color: var(--text);
}
cite { display: block; margin-top: .6rem; color: var(--muted); font-style: normal; font-size: .88rem; }

/* REGISTER */
.section-accent { background: var(--accent-bg); border-top: 1px solid var(--border); }
.register-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start; }
.register-info h2 { margin-bottom: .5rem; }
.register-info p { color: var(--muted); margin-bottom: 1rem; }
.check-list { list-style: none; display: grid; gap: .4rem; }
.check-list li::before { content: "✓ "; color: var(--primary); font-weight: 700; }
.register-form {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem; display: grid; gap: .55rem;
  box-shadow: var(--shadow);
}
.register-form label { font-size: .9rem; font-weight: 600; }
.register-form input, .register-form select {
  width: 100%; border: 1px solid var(--border); border-radius: 10px;
  padding: .65rem .75rem; font-size: .95rem;
}
.register-form button {
  margin-top: .4rem; border: 0; border-radius: 10px;
  background: var(--primary); color: #fff; padding: .72rem; font-weight: 700; cursor: pointer;
  transition: background .15s;
}
.register-form button:hover { background: var(--primary-hover); }
.form-note { font-size: .82rem; color: var(--muted); margin-top: .3rem; }
.form-note a { color: var(--primary); }

/* FOOTER */
.site-footer { background: var(--dark-bg); color: #94a3b8; padding: 2.5rem 0 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2rem; }
.footer-grid .logo { color: #fff; }
.footer-tagline { color: #64748b; margin-top: .3rem; font-size: .9rem; }
.footer-grid h4 { color: #e2e8f0; margin-bottom: .5rem; font-size: .9rem; }
.footer-grid a { display: block; color: #94a3b8; text-decoration: none; font-size: .9rem; margin-bottom: .3rem; }
.footer-grid a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid #1e293b; margin-top: 2rem; padding-top: 1rem; }
.footer-bottom p { font-size: .85rem; }

@media (max-width: 860px) {
  .feature-grid, .pricing-grid, .about-split, .register-layout, .footer-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hero-image img { height: 260px; }
  .stats-row { gap: 1.5rem; }
}