body.site {
  background: #f4f7fb;
  color: #0f172a;
}
body.site a:not(.btn) {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: #fff;
  border-bottom: 1px solid #e6edf5;
}
.site-bar {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #0f172a;
  font-weight: 700;
  letter-spacing: -0.04em;
  font-size: 16px;
  margin-right: auto;
}
.mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: #1d4ed8;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
}
.site-links { display: flex; align-items: center; gap: 2px; }
.site-links a {
  color: #3e4c63;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 8px;
}
.site-links a.active { color: #0f172a; font-weight: 650; box-shadow: inset 0 -2px 0 #1d4ed8; border-radius: 0; }
.site-links a:hover { color: #0f172a; }
.site-actions { display: flex; align-items: center; gap: 16px; }
.site-login { color: #0f172a; font-weight: 600; font-size: 14px; }
.site-login-mobile { display: none; }
.nav-check { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid #e6edf5;
  border-radius: 10px;
  background: #fff;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-burger span, .nav-burger span:before, .nav-burger span:after {
  display: block; width: 16px; height: 1.5px; background: #0f172a; position: relative;
}
.nav-burger span:before, .nav-burger span:after { content: ""; position: absolute; left: 0; }
.nav-burger span:before { top: -5px; }
.nav-burger span:after { top: 5px; }

.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.hero {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 56px;
  align-items: center;
  padding: 72px 0 36px;
}
.kicker {
  margin: 0 0 12px;
  color: #64748b;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero h1, .page-hero h1 {
  margin: 0 0 16px;
  color: #0f172a;
  font-weight: 700;
  letter-spacing: -0.045em;
}
.hero h1 { font-size: clamp(40px, 5vw, 60px); line-height: 1.02; }
.deck { max-width: 520px; margin: 0 0 26px; color: #475569; font-size: 18px; line-height: 1.6; }
.row-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.facts { display: flex; flex-wrap: wrap; gap: 28px; margin: 32px 0 0; padding: 0; list-style: none; }
.facts strong { display: block; font-size: 15px; }
.facts span { color: #64748b; font-size: 13px; }

.sheet-preview {
  background: #fff;
  border: 1px solid #e6edf5;
  border-radius: 20px;
  box-shadow: 0 30px 70px rgba(15, 23, 42, 0.08);
  padding: 22px 22px 18px;
}
.sheet-preview header { display: flex; justify-content: space-between; gap: 12px; color: #64748b; font-size: 12px; }
.sheet-preview h2 { margin: 18px 0 14px; text-align: center; font-size: 14px; letter-spacing: 0.08em; }
.mini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.mini-grid div { border: 1px solid #e6edf5; border-radius: 12px; padding: 12px; font-size: 14px; }
.mini-grid b { display: block; margin-bottom: 3px; color: #64748b; font-size: 11px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }

.section { padding: 20px 0 72px; }
.section h2 { margin: 0 0 10px; font-size: clamp(28px, 3vw, 36px); letter-spacing: -0.04em; }
.intro { max-width: 620px; margin: 0 0 22px; color: #475569; font-size: 16px; line-height: 1.6; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.panel {
  background: #fff;
  border: 1px solid #e6edf5;
  border-radius: 16px;
  padding: 20px;
  height: 100%;
}
.panel h3 { margin: 0 0 8px; font-size: 16px; }
.panel p, .panel li { color: #475569; font-size: 14.5px; line-height: 1.6; }
.panel ul { margin: 8px 0 0; padding-left: 18px; }

.split { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 28px; align-items: start; }
.price-box { background: #0f172a; color: #fff; border-radius: 20px; padding: 32px; }
.price-box h2 { margin: 8px 0; color: #fff; font-size: 44px; letter-spacing: -0.04em; }
.price-box p { color: #cbd5e1; }
.price-box .btn { background: #fff; color: #0f172a; border-color: #fff; }

.steps { display: grid; gap: 10px; }
.step { display: grid; grid-template-columns: 44px 1fr; gap: 14px; background: #fff; border: 1px solid #e6edf5; border-radius: 16px; padding: 16px 18px; }
.num { width: 44px; height: 44px; border-radius: 12px; background: #f4f7fb; color: #0f172a; display: flex; align-items: center; justify-content: center; font-weight: 700; }
.step h3 { margin: 2px 0 4px; font-size: 16px; }
.step p { margin: 0; color: #475569; }

.group { margin-bottom: 26px; }
.group h3 { margin: 0 0 8px; font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; color: #64748b; }
.list { background: #fff; border: 1px solid #e6edf5; border-radius: 16px; overflow: hidden; }
.list article { display: grid; grid-template-columns: 56px 1fr; gap: 8px; padding: 14px 16px; border-bottom: 1px solid #f1f5f9; }
.list article:last-child { border-bottom: 0; }
.tag { color: #0f172a; font-size: 12px; font-weight: 700; }
.list p { margin: 2px 0 0; color: #64748b; font-size: 13px; }

.faq details { background: #fff; border: 1px solid #e6edf5; border-radius: 14px; padding: 16px 18px; margin-bottom: 8px; }
.faq summary { font-weight: 650; cursor: pointer; }
.faq p { margin: 8px 0 0; color: #475569; line-height: 1.6; }
.faq a { color: #1d4ed8; font-weight: 600; }

.seat { display: flex; align-items: center; gap: 12px; margin: 18px 0; }
.seat button { width: 40px; height: 40px; border-radius: 10px; border: 1px solid #e6edf5; background: #fff; font-size: 18px; }
.seat b { min-width: 120px; text-align: center; }
.examples { display: grid; gap: 10px; }
.example { display: flex; justify-content: space-between; gap: 12px; background: #fff; border: 1px solid #e6edf5; border-radius: 14px; padding: 16px 18px; }

.cta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 72px;
  padding: 28px;
  background: #fff;
  border: 1px solid #e6edf5;
  border-radius: 20px;
}
.page-hero { padding: 56px 0 12px; }
.page-hero h1 { margin: 0 0 12px; font-size: clamp(34px, 4vw, 48px); letter-spacing: -0.045em; }
.page-hero p { max-width: 640px; color: #475569; font-size: 17px; line-height: 1.6; }
.section h2 { letter-spacing: -0.04em; }

.site-footer { background: #0f172a; color: #cbd5e1; padding: 48px 0 28px; }
.foot { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; }
.foot .site-logo { color: #fff; margin: 0 0 12px; }
.foot .mark { background: #2563eb; }
.foot h4 { margin: 0 0 12px; color: #94a3b8; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; }
.foot a, .foot p { display: block; margin: 0 0 8px; color: #cbd5e1; font-size: 14px; line-height: 1.5; }
.foot a:hover { color: #fff; }
.legal { margin-top: 28px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,0.08); color: #94a3b8; font-size: 12px; }

.auth-page { padding: 48px 0 72px; }
.auth-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 40px; align-items: start; }
.auth-copy h1 { margin: 0 0 12px; font-size: clamp(32px, 4vw, 44px); letter-spacing: -0.045em; }
.auth-copy p { color: #475569; font-size: 16px; line-height: 1.6; max-width: 420px; }
.auth-points { margin: 22px 0 0; padding: 0; list-style: none; }
.auth-points li { padding: 12px 0; border-top: 1px solid #e6edf5; color: #334155; font-size: 14px; }
.auth-points strong { display: block; color: #0f172a; margin-bottom: 2px; }
.auth-form {
  background: #fff;
  border: 1px solid #e6edf5;
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.04);
}
.auth-form h2 { margin: 0 0 18px; font-size: 22px; letter-spacing: -0.03em; }
.auth-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
.auth-fields .full { grid-column: 1 / -1; }
.auth-switch { margin: 16px 0 0; color: #64748b; font-size: 14px; }
.auth-switch a { color: #0f172a; font-weight: 650; }

@media (max-width: 980px) {
  .hero, .split, .grid-3 { grid-template-columns: 1fr; }
  .grid-3, .foot { grid-template-columns: 1fr 1fr; }
  .hero { padding-top: 40px; }
  .cta { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 760px) {
  .site-links { display: none; }
  .site-login { display: none; }
  .nav-burger { display: flex; }
  .nav-check:checked ~ .site-links {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    left: 0;
    right: 0;
    top: 72px;
    padding: 8px 16px 16px;
    background: #fff;
    border-bottom: 1px solid #e6edf5;
  }
  .site-bar { position: relative; width: min(1180px, calc(100% - 24px)); }
  .site-login-mobile { display: block; margin-top: 6px; font-weight: 650; }
  .grid-2, .grid-3, .foot, .mini-grid, .auth-grid, .auth-fields { grid-template-columns: 1fr; }
  .auth-fields .full { grid-column: auto; }
  .list article { grid-template-columns: 1fr; }
  .facts { gap: 16px; }
}