/* ============================================================
   LINZA — светлая аналитическая консоль
   Палитра: белый #FFFFFF / серый #F7F9FC / карточки #FAFBFC
   Акцент: синий #2D6BFF · Успех: #12B76A · Алерт: #E5484D
   Заголовки Manrope 800 · Текст Inter · Цифры JetBrains Mono
   ============================================================ */

:root {
  --bg: #FFFFFF;
  --bg-alt: #F7F9FC;
  --card: #FAFBFC;
  --border: #E4E7EC;
  --ink: #161A2E;
  --ink-2: #667085;
  --ink-3: #AAB4CC;
  --accent: #2D6BFF;
  --accent-hover: #1F54D6;
  --accent-soft: #EEF4FF;
  --green: #12B76A;
  --red: #E5484D;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 14px 36px rgba(22, 26, 46, .06);
  --font-head: 'Manrope', sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.15;
  color: var(--ink);
}

p { color: var(--ink-2); }

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

img, svg { display: block; max-width: 100%; }

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-narrow { max-width: 780px; }

.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }

.section-head { margin-bottom: 40px; }

.kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 10px;
}

.section-title {
  font-size: 32px;
  letter-spacing: -.01em;
}

.section-note {
  margin-top: 32px;
  text-align: center;
  font-size: 15px;
  color: var(--ink-2);
}

/* ---------- Кнопки ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.2;
  border: none;
  cursor: pointer;
  transition: background .15s ease, transform .1s ease, box-shadow .15s ease;
}

.btn-primary {
  background: var(--accent);
  color: #FFFFFF;
  box-shadow: 0 8px 20px rgba(45, 107, 255, .25);
}
.btn-primary:hover { background: var(--accent-hover); box-shadow: 0 10px 24px rgba(45, 107, 255, .32); }

.btn-big { padding: 18px 36px; font-size: 17px; }

.btn-white {
  background: #FFFFFF;
  color: var(--accent);
  box-shadow: 0 10px 28px rgba(9, 30, 66, .18);
}
.btn-white:hover { background: var(--accent-soft); }

/* ---------- HERO ---------- */
.hero {
  background: linear-gradient(180deg, #FFFFFF 0%, #EEF4FF 100%);
  border-bottom: 1px solid var(--border);
  padding: 56px 0 64px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--accent);
  background: rgba(45, 107, 255, .08);
  border: 1px solid rgba(45, 107, 255, .22);
  border-radius: 999px;
  padding: 7px 14px;
  margin-bottom: 22px;
}

.hero-title {
  font-size: 38px;
  letter-spacing: -.02em;
  margin-bottom: 18px;
}

.hero-sub {
  font-size: 17px;
  color: var(--ink-2);
  max-width: 560px;
  margin-bottom: 28px;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-2);
}
.hero-facts span { position: relative; }
.hero-facts span + span::before {
  content: '·';
  position: absolute;
  left: -14px;
  color: var(--ink-3);
}

/* ---------- Карточка-метрика (цифры — герой) ---------- */
.metric-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 24px;
}

.metric-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 22px;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.badge-green { color: var(--green); background: rgba(18, 183, 106, .10); }

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.metric-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--ink);
}

.metric-caption {
  font-size: 13px;
  color: var(--ink-2);
}

/* ---------- Карточки (общее) ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.card:hover { border-color: #CBD5E6; box-shadow: var(--shadow); }

.card-icon {
  width: 26px;
  height: 26px;
  color: var(--accent);
  margin-bottom: 16px;
}

.card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.card p {
  font-size: 15px;
  color: var(--ink-2);
}

/* ---------- Отстрой (акцентная карточка) ---------- */
.card-accent {
  margin-top: 20px;
  background: var(--accent-soft);
  border: 1.5px solid var(--accent);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.accent-head {
  display: flex;
  align-items: center;
  gap: 10px;
}
.accent-head .card-icon { margin-bottom: 0; }

.accent-label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
}

.accent-text {
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  max-width: 760px;
}

/* ---------- Шаги ---------- */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
}

.step-num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
  flex-shrink: 0;
}

.step h3 {
  font-size: 17px;
  font-weight: 700;
  padding-top: 3px;
}

/* ---------- Возможности (скриншоты в рамке браузера) ---------- */
.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.feature h3 {
  font-size: 19px;
  margin: 18px 0 8px;
}

.feature p {
  font-size: 15px;
  color: var(--ink-2);
  max-width: 460px;
}

.browser {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #FFFFFF;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}

.browser-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.browser-dot:nth-child(1) { background: #FF5F57; }
.browser-dot:nth-child(2) { background: #FEBC2E; }
.browser-dot:nth-child(3) { background: #28C840; }

.browser-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
}

.browser-shot {
  aspect-ratio: 16 / 10;
  background:
    linear-gradient(var(--bg-alt), var(--bg-alt)) padding-box,
    repeating-linear-gradient(90deg, transparent 0 47px, var(--border) 47px 48px),
    repeating-linear-gradient(0deg, transparent 0 47px, var(--border) 47px 48px);
  background-blend-mode: normal;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.shot-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--ink-3);
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  text-align: center;
}

/* ---------- Результат ---------- */
.results {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.result {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
}

.result-mono {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
}

.result-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}

.result-arrow {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex-shrink: 0;
}

/* ---------- Оффер альфы ---------- */
.offer-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 44px 28px;
  text-align: center;
}

.offer-title {
  font-size: 30px;
  margin-bottom: 16px;
}

.offer-text {
  font-size: 16px;
  color: var(--ink-2);
  max-width: 640px;
  margin: 0 auto 18px;
}

.offer-limit {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-3);
  margin-bottom: 28px;
}

/* ---------- FAQ ---------- */
.faq {
  border-top: 1px solid var(--border);
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 4px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  transition: color .15s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent); }

.faq-item summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 500;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform .15s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }

.faq-item p {
  padding: 0 4px 22px;
  font-size: 15px;
  color: var(--ink-2);
  max-width: 660px;
}

/* ---------- Финальный CTA ---------- */
.section-cta {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-hover) 100%);
  padding: 72px 0;
}

.cta-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.cta-title {
  font-size: 34px;
  color: #FFFFFF;
}

.cta-text {
  font-size: 16px;
  color: rgba(255, 255, 255, .85);
  margin-bottom: 10px;
}

/* ---------- Футер ---------- */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-size: 14px;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 14px;
}

.footer-col .footer-logo {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink);
}

.footer-col p {
  font-size: 14px;
  color: var(--ink-2);
  max-width: 320px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }

.footer-col ul.req {
  font-size: 14px;
  color: var(--ink-2);
}
.footer-col ul.req li { margin-bottom: 5px; }
.footer-col ul.req em { font-style: normal; color: var(--ink-3); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  font-size: 13px;
  color: var(--ink-3);
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s ease, transform .5s ease;
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   Адаптив
   ============================================================ */
@media (min-width: 640px) {
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .features { grid-template-columns: 1fr 1fr; gap: 24px; }
}

@media (min-width: 900px) {
  .section { padding: 96px 0; }
  .section-title { font-size: 38px; }
  .hero { padding: 88px 0 96px; }
  .hero-inner {
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
    gap: 64px;
  }
  .hero-title { font-size: 52px; }
  .hero-sub { font-size: 19px; }
  .cards-grid.pains { grid-template-columns: repeat(4, 1fr); }
  .cards-grid.solution { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .step { flex-direction: column; gap: 12px; padding: 26px 22px; }
  .step-num { font-size: 26px; }
  .offer-card { padding: 60px 48px; }
  .offer-title { font-size: 36px; }
  .cta-title { font-size: 42px; }
  .section-cta { padding: 96px 0; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; }
}