/* === Базовые переменные === */
:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7fa;
  --color-bg-soft: #eef2f7;
  --color-border: #d9e1ec;
  --color-border-soft: #e6ecf3;
  --color-text: #1b2a4e;
  --color-text-muted: #4a5876;
  --color-text-soft: #6b7891;
  --color-primary: #1b3a6e;
  --color-primary-hover: #142b53;
  --color-accent: #2e86c1;
  --color-accent-soft: #eaf3fa;
  --color-graphite: #2c3e50;
  --color-orange: #e97b23;
  --color-green: #4ea64e;
  --color-blue: #2e86c1;
  --shadow-sm: 0 1px 2px rgba(27, 42, 78, 0.05);
  --shadow-md: 0 4px 16px rgba(27, 42, 78, 0.08);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --container: 1200px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-primary);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* === Шапка === */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 24px;
}

.header__logo img {
  height: 44px;
  width: auto;
}

.nav {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav a {
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.15s ease;
}

.nav a:hover {
  color: var(--color-primary);
}

.header__cta {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--color-primary);
  transition: background 0.15s ease;
  white-space: nowrap;
}

.header__cta:hover {
  background: var(--color-primary-hover);
  color: #fff;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  margin: 4px 0;
}

/* === Hero === */
.hero {
  padding: 96px 0 88px;
  background:
    linear-gradient(180deg, #ffffff 0%, #f5f7fa 100%);
  border-bottom: 1px solid var(--color-border-soft);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(27, 58, 110, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 58, 110, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at top right, rgba(0,0,0,0.6), transparent 70%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  max-width: 880px;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding: 6px 12px;
  background: var(--color-accent-soft);
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 48px;
  line-height: 1.15;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero h1 .accent {
  color: var(--color-accent);
}

.hero__lead {
  font-size: 18px;
  color: var(--color-text-muted);
  margin-bottom: 36px;
  max-width: 620px;
}

.hero__cta-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border-soft);
}

.hero__stat-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.hero__stat-label {
  font-size: 13px;
  color: var(--color-text-soft);
  margin-top: 4px;
}

/* === Секции === */
.section {
  padding: 88px 0;
  border-bottom: 1px solid var(--color-border-soft);
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__header {
  max-width: 760px;
  margin-bottom: 48px;
}

.section__eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section h2 {
  font-size: 34px;
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.section__lead {
  font-size: 17px;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* === Сведения об организации === */
.about__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.about__text p + p {
  margin-top: 16px;
}

.about__text p {
  color: var(--color-text-muted);
  font-size: 16px;
  line-height: 1.75;
}

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

.highlight {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.highlight:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.highlight__icon {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
}

.highlight__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.highlight__text {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.5;
}

/* === Реквизиты === */
.requisites {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.requisites__row {
  display: grid;
  grid-template-columns: 320px 1fr;
  border-bottom: 1px solid var(--color-border-soft);
}

.requisites__row:last-child { border-bottom: 0; }

.requisites__row:nth-child(even) {
  background: var(--color-bg-alt);
}

.requisites__label {
  padding: 16px 24px;
  font-size: 14px;
  color: var(--color-text-muted);
  font-weight: 500;
  border-right: 1px solid var(--color-border-soft);
}

.requisites__value {
  padding: 16px 24px;
  font-size: 15px;
  color: var(--color-primary);
  font-weight: 500;
}

.requisites__value .placeholder {
  color: var(--color-text-soft);
  font-style: italic;
  font-weight: 400;
}

/* === Услуги (карточки) === */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.18s ease;
}

.service-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.service-card__icon {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  border-radius: var(--radius-md);
  margin-bottom: 18px;
}

.service-card__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  line-height: 1.35;
}

.service-card__text {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* === Коды видов деятельности === */
.activity-codes {
  margin-top: 56px;
}

.activity-codes__header {
  margin-bottom: 24px;
}

.activity-codes__title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  line-height: 1.3;
}

.activity-codes__intro {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.activity-codes__table-wrap {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #fff;
}

.activity-codes__table {
  width: 100%;
  border-collapse: collapse;
}

.activity-codes__table thead {
  background: var(--color-bg-soft);
}

.activity-codes__table th {
  padding: 14px 20px;
  text-align: left;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}

.activity-codes__table th:first-child {
  width: 120px;
}

.activity-codes__table td {
  padding: 18px 20px;
  font-size: 14px;
  border-bottom: 1px solid var(--color-border-soft);
  vertical-align: top;
  color: var(--color-text);
  line-height: 1.6;
}

.activity-codes__table tbody tr:last-child td {
  border-bottom: 0;
}

.activity-codes__table tbody tr:hover {
  background: var(--color-accent-soft);
}

.code-badge {
  display: inline-block;
  padding: 4px 10px;
  background: var(--color-primary);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
}

/* === Подробное описание услуг === */
.details-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #fff;
  overflow: hidden;
}

.detail-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  padding: 24px 28px;
  border-bottom: 1px solid var(--color-border-soft);
  gap: 20px;
  align-items: start;
}

.detail-item:last-child { border-bottom: 0; }

.detail-item__num {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.detail-item__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.detail-item__text {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* === Таблица стоимости === */
.pricing-wrap {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #fff;
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
}

.pricing-table thead {
  background: var(--color-primary);
  color: #fff;
}

.pricing-table th {
  padding: 16px 20px;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pricing-table th:last-child,
.pricing-table td:last-child {
  text-align: right;
}

.pricing-table td {
  padding: 16px 20px;
  font-size: 15px;
  border-bottom: 1px solid var(--color-border-soft);
  color: var(--color-text);
  vertical-align: top;
}

.pricing-table tbody tr:last-child td {
  border-bottom: 0;
}

.pricing-table tbody tr:hover {
  background: var(--color-accent-soft);
}

.pricing-table td:first-child {
  font-weight: 600;
  color: var(--color-primary);
}

.pricing-table td:last-child {
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.pricing-note {
  margin-top: 20px;
  padding: 16px 20px;
  background: var(--color-bg-soft);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px;
  color: var(--color-text-muted);
}

/* === Информационная карточка ПО === */
.notice-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 32px 36px;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 24px;
  align-items: start;
}

.notice-card__icon {
  width: 56px;
  height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  color: var(--color-primary);
  border-radius: var(--radius-md);
}

.notice-card__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.notice-card__text {
  font-size: 16px;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* === Стек технологий === */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.tech-card {
  padding: 26px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.15s ease;
}

.tech-card:hover {
  border-color: var(--color-accent);
}

.tech-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border-soft);
}

.tech-card__icon {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-radius: var(--radius-sm);
}

.tech-card__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  background: var(--color-bg-soft);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-soft);
  transition: all 0.15s ease;
}

.tag:hover {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-primary);
}

.tag--accent {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.tag--accent:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
}

/* === Контакты === */
.contact-info {
  display: grid;
  gap: 18px;
}

.contact-info--full {
  grid-template-columns: repeat(4, 1fr);
}

.contact-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  align-items: center;
}

.contact-item__icon {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-radius: var(--radius-sm);
}

.contact-item__label {
  font-size: 13px;
  color: var(--color-text-soft);
  margin-bottom: 2px;
}

.contact-item__value {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.45;
}

/* === Подвал === */
.footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.85);
  padding: 48px 0 28px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr repeat(2, 1fr);
  gap: 40px;
  margin-bottom: 32px;
}

.footer__brand img {
  height: 44px;
  margin-bottom: 16px;
  filter: brightness(0) invert(1);
}

.footer__about {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255,255,255,0.7);
  max-width: 360px;
}

.footer__title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: 16px;
}

.footer__links {
  list-style: none;
  display: grid;
  gap: 10px;
}

.footer__links a {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  transition: color 0.15s ease;
}

.footer__links a:hover {
  color: #fff;
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.55);
}

/* === Адаптив === */
@media (max-width: 1024px) {
  .hero h1 { font-size: 40px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .about__grid { grid-template-columns: 1fr; gap: 32px; }
  .contact-info--full { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav { display: none; }
  .menu-toggle { display: block; }

  .nav.is-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 16px 24px;
    gap: 14px;
    align-items: flex-start;
  }

  .header__cta { display: none; }
  .hero { padding: 56px 0; }
  .hero h1 { font-size: 32px; }
  .hero__lead { font-size: 16px; }
  .hero__stats { grid-template-columns: 1fr; gap: 16px; text-align: left; }
  .section { padding: 56px 0; }
  .section h2 { font-size: 26px; }

  .services-grid { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: 1fr; }
  .about__highlights { grid-template-columns: 1fr; }

  .requisites__row { grid-template-columns: 1fr; }
  .requisites__label {
    border-right: 0;
    border-bottom: 1px solid var(--color-border-soft);
    padding: 12px 16px;
    font-size: 13px;
  }
  .requisites__value { padding: 12px 16px; }

  .detail-item { grid-template-columns: 1fr; gap: 8px; padding: 20px; }
  .detail-item__num { font-size: 18px; }

  .pricing-table th,
  .pricing-table td { padding: 12px 14px; font-size: 13px; }

  .activity-codes { margin-top: 40px; }
  .activity-codes__title { font-size: 18px; }
  .activity-codes__table th,
  .activity-codes__table td { padding: 12px 14px; font-size: 13px; }
  .activity-codes__table th:first-child { width: 80px; }
  .code-badge { padding: 3px 8px; font-size: 12px; }

  .contact-info--full { grid-template-columns: 1fr; }

  .footer__inner { grid-template-columns: 1fr; gap: 28px; }
  .notice-card { padding: 22px; grid-template-columns: 1fr; gap: 14px; }
}