:root {
  --blue: #1a56db;
  --blue-dark: #0f3a8a;
  --blue-light: #e8f0fe;
  --red: #e02424;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-600: #4b5563;
  --gray-900: #111827;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  --radius: 12px;
}

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

body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--gray-900);
  line-height: 1.6;
  background: #fff;
  font-size: 16px;
}

img { max-width: 100%; height: auto; }
a { color: var(--blue); }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
main { display: block; }

/* ---------- header ---------- */
.site-header { border-bottom: 1px solid var(--gray-200); background: #fff; position: sticky; top: 0; z-index: 10; }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; gap: 16px; flex-wrap: wrap;
}
.logo { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 1.4rem; color: var(--blue); text-decoration: none; }
.logo img { width: 42px; height: 42px; border-radius: 10px; }
.nav-links { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.nav-links a { text-decoration: none; color: var(--gray-600); font-weight: 500; }
.nav-links a:hover { color: var(--blue); }
.nav-links a[aria-current="page"] { color: var(--gray-900); }
.nav-links .btn-primary { color: #fff; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; padding: 12px 24px; border-radius: 8px; font-weight: 600;
  text-decoration: none; transition: all 0.2s; border: 2px solid transparent; cursor: pointer; font: inherit; font-weight: 600;
  text-align: center;
}
.btn-primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); transform: translateY(-1px); color: #fff; }
.btn-outline { border: 2px solid var(--blue); color: var(--blue); background: transparent; }
.btn-outline:hover { background: var(--blue-light); }
.btn-secondary { border: 2px solid var(--blue); color: var(--blue); background: transparent; }
.btn-secondary:hover { background: var(--blue-light); }
.btn-small { padding: 6px 12px; font-size: 0.9rem; }
.btn-row { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.btn-white { background: #fff; color: var(--blue); border-color: #fff; }
.btn-white:hover { background: var(--gray-100); color: var(--blue-dark); }

/* ---------- sections ---------- */
section { padding: 80px 0; }
section.alt { background: var(--gray-50); }
h1, h2, h3 { line-height: 1.15; }
h2 { font-size: 2.4rem; font-weight: 800; text-align: center; margin-bottom: 16px; letter-spacing: -0.02em; }
.section-sub { text-align: center; color: var(--gray-600); font-size: 1.15rem; max-width: 640px; margin: 0 auto 48px; }
.lead { font-size: 1.25rem; color: var(--gray-600); max-width: 680px; }
.muted { color: var(--gray-600); }

/* ---------- hero ---------- */
.hero {
  padding: 80px 0 60px;
  background: linear-gradient(180deg, var(--blue-light) 0%, #fff 100%);
  text-align: center;
}
.hero h1 { font-size: 3.4rem; font-weight: 800; line-height: 1.1; margin: 20px 0; letter-spacing: -0.02em; }
.hero h1 span { color: var(--blue); }
.hero p.lead { font-size: 1.25rem; color: var(--gray-600); max-width: 680px; margin: 0 auto 32px; }
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-logo { width: 84px; height: 84px; border-radius: 18px; margin: 0 auto; }
.hero-image { margin-top: 48px; border-radius: 16px; box-shadow: var(--shadow); max-width: 100%; height: auto; }

/* ---------- problem / split ---------- */
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.problem-text h3 { font-size: 1.6rem; margin-bottom: 12px; }
.problem-text p + p { margin-top: 16px; }
.comparison-img { border-radius: 12px; max-width: 100%; box-shadow: var(--shadow); }

/* ---------- feature cards ---------- */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 28px; }
.feature-card { background: var(--gray-50); border-radius: var(--radius); padding: 28px; border: 1px solid var(--gray-200); }
.feature-card h3 { margin: 12px 0 8px; font-size: 1.25rem; }
.feature-card p + p { margin-top: 12px; }
.feature-card.center { text-align: center; }
.icon { font-size: 2rem; }
.features.narrow { max-width: 800px; margin: 0 auto; }

/* ---------- steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; text-align: center; }
.step-num {
  width: 48px; height: 48px; background: var(--blue); color: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-weight: 700; margin: 0 auto 16px; font-size: 1.25rem;
}
.steps h3 { margin-bottom: 8px; }
.steps-image { max-width: min(720px, 100%); }

/* ---------- CTA band ---------- */
.cta-section {
  background: var(--blue); color: #fff; text-align: center; border-radius: 20px; padding: 64px 40px;
}
.cta-section h2 { color: #fff; }
.cta-section p { color: rgba(255, 255, 255, 0.9); margin-bottom: 28px; font-size: 1.15rem; }
.cta-section .fine { margin: 20px 0 0; font-size: 0.95rem; opacity: 0.85; }

/* ---------- footer ---------- */
.site-footer { background: var(--gray-900); color: #9ca3af; padding: 48px 0 24px; text-align: center; }
.site-footer a { color: #9ca3af; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-brand { display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 16px; }
.footer-brand img { width: 36px; height: 36px; border-radius: 8px; }
.footer-brand strong { color: #fff; font-size: 1.2rem; }
.site-footer p + p { margin-top: 8px; }

/* ---------- inner pages ---------- */
.page { padding: 64px 0; }
.page-narrow { max-width: 640px; margin: 0 auto; }
.stack > * + * { margin-top: 16px; }
.flash { padding: 12px 16px; border-radius: 8px; margin: 24px 0 0; }
.flash-ok { background: #e6f6ec; color: #17663a; }
.flash-error { background: #fdecec; color: #9b1c1c; }
.card { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 24px; }
.card p + p { margin-top: 12px; }
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.price-grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin-top: 24px; }
.price-card { display: flex; flex-direction: column; text-align: left; }
.price-card .icon { text-align: center; }
.pricing-three { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .pricing-three { grid-template-columns: 1fr; } }
.price-card .btn { margin-top: auto; text-align: center; }
.feature-card .btn { margin-top: 8px; }
.price { font-size: 2rem; font-weight: 800; margin: 8px 0; }
.price small { font-size: 0.95rem; color: var(--gray-600); font-weight: 500; }
.price-card ul { padding-left: 18px; margin: 12px 0 20px; color: var(--gray-600); }
.price-card .btn { margin-top: auto; }
.note { font-size: 0.9rem; color: var(--gray-600); margin-top: 16px; }

.step-list { counter-reset: step; list-style: none; }
.step-list li { counter-increment: step; position: relative; padding: 0 0 24px 44px; }
.step-list li::before {
  content: counter(step); position: absolute; left: 0; top: 0; width: 30px; height: 30px; border-radius: 50%;
  background: var(--blue); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 0.9rem;
}
.step-list h3 { margin-bottom: 4px; }

.form { display: grid; gap: 12px; max-width: 420px; }
label { font-weight: 600; }
input[type="email"], input[type="text"] {
  width: 100%; padding: 12px; border-radius: 8px; border: 1px solid var(--gray-200); font: inherit; color: var(--gray-900);
}
input:focus { outline: 2px solid var(--blue); outline-offset: 1px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 8px; border-bottom: 1px solid var(--gray-200); vertical-align: top; }
th { font-size: 0.8rem; color: var(--gray-600); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.8rem; font-weight: 600; background: var(--gray-100); }
.badge-ok { background: #e6f6ec; color: #17663a; }
.badge-off { background: #fdecec; color: #9b1c1c; }

/* ---------- phones ---------- */
@media (max-width: 900px) {
  .problem-grid, .steps { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .hero { padding: 48px 0 40px; }
  .hero h1 { font-size: 2.2rem; }
  h2 { font-size: 1.85rem; }
  section { padding: 56px 0; }
  .nav { flex-wrap: wrap; gap: 12px; }
  .nav-links { gap: 14px 20px; justify-content: center; width: 100%; }
  .cta-section { padding: 44px 24px; }
  .btn-row .btn, .hero-buttons .btn { width: 100%; }
}

.roi-card { max-width: 880px; margin: 0 auto; }
.roi-inputs { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.roi-inputs label { display: grid; gap: 6px; font-size: 0.95rem; }
.roi-inputs input { width: 100%; padding: 10px; border-radius: 8px; border: 1px solid var(--gray-200); font: inherit; }
.roi-results { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--gray-200); }
.roi-results div { display: grid; gap: 4px; }
.roi-results strong { font-size: 1.5rem; font-weight: 800; color: var(--blue); }

.bench-table td:last-child { font-weight: 700; }