/* Flagman — лендинг в стиле BetaRobotics (палитра и шрифт из презентации BetaRobotics_2026) */
:root {
  --bg: #152332;
  --bg-alt: #1a2735;
  --bg-deep: #0b1117;
  --card: #1f2f40;
  --line: #334354;
  --text: #ffffff;
  --muted: #b9c4d0;
  --dim: #596b80;
  --teal: #20dbc2;
  --blue: #1a27c3;
  --pink: #ed35b9;
  --radius: 16px;
  --font: "Segoe UI", "Segoe UI Variable", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -0.01em; line-height: 1.15; }
h1 { font-size: clamp(36px, 5.4vw, 64px); }
h2 { font-size: clamp(28px, 3.6vw, 44px); margin-bottom: 16px; }
h3 { font-size: 20px; margin-bottom: 8px; }
p { margin: 0 0 8px; }

.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.accent { color: var(--teal); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 16px;
  color: var(--teal);
  font-size: 13px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 8px; height: 8px; background: var(--teal); border-radius: 50%; }

/* Кнопки */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 28px;
  border: 2px solid var(--teal); border-radius: 999px;
  background: var(--teal); color: var(--bg-deep);
  font: 600 16px/1 var(--font); text-decoration: none; cursor: pointer;
  transition: transform .15s, background .15s, color .15s;
}
.btn:hover { transform: translateY(-1px); background: #4fe8d3; border-color: #4fe8d3; }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn--ghost:hover { background: transparent; border-color: var(--teal); color: var(--teal); }
.btn--sm { min-height: 40px; padding: 0 18px; font-size: 14px; }
.btn--block { width: 100%; }

/* Шапка */
.hdr {
  position: sticky; top: 0; z-index: 10;
  background: rgba(21, 35, 50, .85);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(51, 67, 84, .6);
}
.hdr__in { display: flex; align-items: center; gap: 32px; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo__name { font-size: 20px; font-weight: 700; letter-spacing: .02em; }
.logo__by { color: var(--dim); font-size: 13px; }
.nav { display: flex; gap: 24px; margin-left: auto; }
.nav a { color: var(--muted); font-size: 15px; text-decoration: none; }
.nav a:hover { color: var(--teal); }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 72px 0 96px; }
.hero__in { display: grid; grid-template-columns: 1.25fr 1fr; gap: 48px; align-items: center; }
.lead { margin: 24px 0 32px; color: var(--muted); font-size: 19px; max-width: 620px; }
.lead b { color: var(--text); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 32px 0 0; padding: 0; list-style: none; }
.chips li {
  padding: 8px 16px; border: 1px solid var(--line); border-radius: 999px;
  color: var(--muted); font-size: 14px;
}
.chips li::before { content: "✓ "; color: var(--teal); }

/* Геометрия как на слайдах BetaRobotics */
.geo {
  display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(3, 1fr);
  width: 100%; max-width: 460px; aspect-ratio: 1; margin-left: auto;
}
.g { display: block; }
.g--q-blue-br { grid-area: 1 / 2; background: var(--blue); border-bottom-left-radius: 100%; }
.g--tri-pink  { grid-area: 1 / 3; background: var(--pink); clip-path: polygon(0 0, 100% 100%, 0 100%); }
.g--q-teal-tr { grid-area: 2 / 2; background: var(--teal); border-top-left-radius: 100%; }
.g--sq-blue   { grid-area: 2 / 3; background: var(--blue); }
.g--half-blue { grid-area: 3 / 1 / 4 / 3; background: var(--blue); border-radius: 100% 100% 0 0 / 200% 200% 0 0; }
.g--q-pink-bl { grid-area: 3 / 3; background: var(--pink); border-bottom-left-radius: 100%; }
/* Секции */
.sec { padding: 96px 0; }
.sec--alt { background: var(--bg-alt); }
.sec__lead { max-width: 780px; margin-bottom: 40px; color: var(--muted); font-size: 18px; }

.grid { display: grid; gap: 20px; }
.grid--feat { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  display: flex; flex-direction: column;
  padding: 28px; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--card);
}
.card p { color: var(--muted); }
.card--accent { justify-content: flex-end; background: var(--blue); border-color: var(--blue); }
.card--accent p { color: #dfe3ff; }
.card__big { margin-bottom: 4px; color: var(--teal) !important; font-size: 44px; font-weight: 700; line-height: 1.1; }
.card__foot { margin-top: auto; padding-top: 16px; color: var(--text) !important; font-weight: 600; }
.card__foot--accent { color: var(--teal) !important; }

.ico {
  display: grid; place-items: center;
  width: 48px; height: 48px; margin-bottom: 20px; border-radius: 12px;
}
.ico svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.ico--teal { background: rgba(32, 219, 194, .14); color: var(--teal); }
.ico--blue { background: rgba(26, 39, 195, .35); color: #8f97ff; }
.ico--pink { background: rgba(237, 53, 185, .16); color: var(--pink); }

.tag {
  align-self: flex-start; margin-bottom: 16px;
  color: var(--teal); font-size: 12px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
}
.tag--pink { color: var(--pink); }

/* Для кого */
.who { padding: 28px 0 0; border-top: 2px solid var(--teal); }
.who:nth-child(2) { border-color: var(--blue); }
.who:nth-child(3) { border-color: var(--pink); }
.who:nth-child(4) { border-color: var(--muted); }
.who__n { display: block; margin-bottom: 12px; color: var(--dim); font-size: 14px; font-weight: 600; }
.who p { color: var(--muted); }

/* Шаги */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 40px 0 0; padding: 0; list-style: none; }
.step { position: relative; padding: 32px 28px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--line); overflow: hidden; }
.step::after {
  content: ""; position: absolute; right: -40px; top: -40px; width: 110px; height: 110px;
  background: var(--teal); border-bottom-left-radius: 100%; opacity: .9;
}
.step:nth-child(2)::after { background: var(--blue); }
.step:nth-child(3)::after { background: var(--pink); clip-path: polygon(0 0, 100% 0, 100% 100%); border-radius: 0; }
.step__n { display: block; margin-bottom: 20px; color: var(--teal); font-size: 13px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }
.step p { color: var(--muted); }

.ticks { margin: 8px 0 0; padding: 0; list-style: none; }
.ticks li { position: relative; padding: 4px 0 4px 26px; color: var(--muted); }
.ticks li::before { content: ""; position: absolute; left: 2px; top: 13px; width: 12px; height: 6px; border-left: 2px solid var(--teal); border-bottom: 2px solid var(--teal); transform: rotate(-45deg); }

/* Тарифы */
.plans { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.plan {
  display: flex; flex-direction: column;
  padding: 36px; border: 1px solid var(--line); border-radius: 20px; background: var(--card);
}
.plan--pro { border: 2px solid var(--teal); background: linear-gradient(160deg, #1d3346 0%, var(--card) 60%); }
.plan h3 { font-size: 26px; }
.plan__dev { margin-bottom: 16px; color: var(--muted); font-size: 18px; }
.incl { margin: 24px 0; padding: 16px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.incl div { display: flex; justify-content: space-between; gap: 16px; padding: 6px 0; }
.incl dt { color: var(--muted); }
.incl dd { margin: 0; color: var(--teal); font-weight: 600; white-space: nowrap; }
.plan__price { margin: 0; font-size: 32px; font-weight: 700; }
.plan__sub { margin-bottom: 20px; color: var(--muted); }
.plan__hint { color: var(--muted); font-size: 15px; }
.plan__hint b { color: var(--text); }
.plan .btn { margin-top: auto; }
.plan .plan__hint:last-of-type { margin-bottom: 24px; }

.cmp__title { margin: 64px 0 20px; font-size: 26px; }
.cmp { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.cmp table { width: 100%; min-width: 560px; border-collapse: collapse; }
.cmp th, .cmp td { padding: 16px 24px; text-align: left; border-bottom: 1px solid var(--line); }
.cmp tbody tr:last-child > * { border-bottom: 0; }
.cmp thead th { background: var(--bg-alt); color: var(--teal); font-size: 13px; letter-spacing: .1em; text-transform: uppercase; }
.cmp tbody th { color: var(--muted); font-weight: 400; }
.cmp td { font-weight: 600; }

.note { margin-top: 20px; color: var(--dim); font-size: 14px; }

/* Дорожная карта */
.road h3 { font-size: 22px; }
.badge {
  align-self: flex-start; margin-bottom: 20px; padding: 6px 12px; border-radius: 999px;
  background: rgba(237, 53, 185, .16); color: var(--pink);
  font-size: 12px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
}

/* О компании */
.about__in { display: grid; grid-template-columns: 1.6fr 1fr; gap: 48px; align-items: center; }
.stats { display: grid; grid-template-columns: repeat(2, minmax(0, 260px)); gap: 32px 48px; margin: 8px 0 32px; }
.stats b { display: block; color: var(--teal); font-size: 56px; line-height: 1.1; }
.stats span { color: var(--text); font-size: 18px; }
.creds { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; list-style: none; }
.creds li { padding: 8px 14px; border: 1px solid var(--line); border-radius: 8px; color: var(--muted); font-size: 14px; }
.about__art { display: grid; place-items: center; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(26, 39, 195, .45), transparent 70%); }
.about__art img { width: 55%; height: auto; }

/* Контакты */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.person { padding: 24px 0 0; border-top: 2px solid var(--teal); max-width: 420px; }
.person p { margin-bottom: 6px; }
.person__name { font-size: 22px; font-weight: 700; }
.person__role { color: var(--muted); margin-bottom: 16px !important; }
.person a { color: var(--teal); text-decoration: none; font-size: 18px; }
.person a:hover { text-decoration: underline; }

.form { display: grid; gap: 16px; padding: 32px; border-radius: 20px; background: var(--card); border: 1px solid var(--line); }
.form label { display: grid; gap: 6px; color: var(--muted); font-size: 14px; }
.form input, .form select {
  width: 100%; min-height: 48px; padding: 0 16px;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg); color: var(--text); font: 16px var(--font);
}
.form input::placeholder { color: var(--dim); }
.form input:focus, .form select:focus { outline: none; border-color: var(--teal); }
.form input.err { border-color: var(--pink); }
.form__note { margin: 0; color: var(--dim); font-size: 13px; }

.ftr { padding: 32px 0; background: var(--bg-deep); color: var(--dim); font-size: 14px; }
.ftr__in { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }

/* Адаптив */
@media (max-width: 1000px) {
  .nav { display: none; }
  .hdr__in { justify-content: space-between; }
  .grid--feat, .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); gap: 32px 20px; }
  .steps { grid-template-columns: 1fr; }
  .hero__in { grid-template-columns: 1fr; }
  .geo { max-width: 300px; margin: 0; }
  .hero__art { order: -1; }
  .about__in, .contact { grid-template-columns: 1fr; }
  .about__art { display: none; }
}
@media (max-width: 680px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .logo__by { display: none; }
  .hero { padding: 40px 0 64px; }
  .geo { max-width: 200px; }
  .sec { padding: 64px 0; }
  .grid--feat, .grid--3, .grid--2, .grid--4, .plans { grid-template-columns: 1fr; }
  .plan, .form { padding: 24px; }
  .stats { gap: 24px; }
  .stats b { font-size: 40px; }
  .hero__cta .btn { flex: 1 1 100%; }
  .cmp table { min-width: 0; font-size: 14px; }
  .cmp th, .cmp td { padding: 12px 10px; }
  .cmp thead th { font-size: 11px; }
}