:root {
  --color-primary: #0d2b5e;
  --color-accent: #1771f1;
  --color-accent-hover: #1260d4;
  --color-bg: #f5f7fa;
  --color-white: #ffffff;
  --color-text: #1a1a2e;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;
  --shadow-sm: 0 2px 8px rgba(13, 43, 94, 0.06);
  --shadow-md: 0 8px 24px rgba(13, 43, 94, 0.1);
  --shadow-lg: 0 16px 48px rgba(13, 43, 94, 0.12);
  --radius: 12px;
  --radius-lg: 16px;
  --max-width: 1200px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Manrope", "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 16px;
}

.logo {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-primary);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.logo span {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.nav a {
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
}

.nav a:hover {
  color: var(--color-accent);
  background: var(--color-bg);
}

.nav__it-link {
  color: var(--color-accent) !important;
  font-weight: 600;
}

.nav__it-link:hover {
  background: rgba(23, 113, 241, 0.08) !important;
  color: var(--color-accent) !important;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn--outline:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn--ghost {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.6);
}

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

/* Hero */
.hero {
  background: url("assets/images/hero-production.jpg") center/cover no-repeat;
  color: var(--color-white);
  padding: 88px 0 100px;
  position: relative;
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    rgba(13, 43, 94, 0.88) 0%,
    rgba(13, 43, 94, 0.72) 50%,
    rgba(13, 43, 94, 0.55) 100%
  );
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.85;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.0625rem;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 520px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero__image img {
  width: 100%;
  height: 100%;
  min-height: 340px;
  object-fit: cover;
  display: block;
}

/* Screenshots gallery */
.screenshots-section {
  margin: 40px 0 56px;
}

.screenshots-section h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 24px;
  text-align: center;
}

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

.screenshot-card {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.screenshot-card img {
  width: 100%;
  height: 220px;
  object-fit: contain;
  object-position: center top;
  background: #eef1f6;
  border-bottom: 1px solid var(--color-border);
  padding: 8px;
}

.screenshot-card figcaption {
  padding: 14px 16px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.4;
}

.screenshot-card p {
  padding: 0 16px 14px;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Sections */
.section {
  padding: 80px 0;
}

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

.section--services {
  position: relative;
  background: url("assets/images/services-bg.jpg") center/cover no-repeat;
  overflow: hidden;
}

.section--services::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(13, 43, 94, 0.78) 0%,
    rgba(23, 113, 241, 0.35) 100%
  );
}

.section--services .container {
  position: relative;
  z-index: 1;
}

.section--services .section__title {
  color: var(--color-white);
}

.section--services .section__subtitle {
  color: rgba(255, 255, 255, 0.88);
}

.section--services .section__label {
  color: rgba(255, 255, 255, 0.9);
}

.section--services .service-card {
  background: var(--color-white);
  box-shadow: var(--shadow-md);
}

.section__header {
  text-align: center;
  margin-bottom: 56px;
}

.section__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section__title {
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section__subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto;
}

.section__heading {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 24px;
  text-align: center;
}

/* Advantages */
.advantages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: -48px;
  position: relative;
  z-index: 2;
}

.advantage-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.advantage-card__icon {
  width: 48px;
  height: 48px;
  background: var(--color-bg);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  margin-bottom: 16px;
  color: var(--color-accent);
}

.advantage-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.advantage-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.service-card__code {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  background: rgba(23, 113, 241, 0.08);
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 12px;
}

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.service-card ul {
  list-style: none;
  padding: 0;
  flex: 1;
}

.service-card li {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding: 4px 0 4px 20px;
  position: relative;
}

.service-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.service-card__price {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.3;
}

.service-card__price span {
  display: block;
  margin-top: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

/* Product / MarkingCI */
.product-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 56px;
}

.product-intro__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.product-intro__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  min-height: 380px;
  padding: 48px 32px;
  background: var(--color-white);
}

.product-intro__logo {
  width: 200px;
  height: 200px;
  object-fit: contain;
}

.product-intro__name {
  font-size: 2.5rem;
  font-weight: 800;
  color: #2c3340;
  letter-spacing: 0.02em;
  line-height: 1;
}

.product-intro h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.product-intro p {
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.product-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}

.product-feature {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.product-feature img {
  width: 100%;
  height: 220px;
  object-fit: contain;
  object-position: top center;
  background: #eef1f6;
}

.product-feature__body {
  padding: 20px;
}

.product-feature h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.product-feature p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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

.module-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.module-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.module-card h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  flex: 1;
}

.module-card__price {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-accent);
  white-space: nowrap;
}

.module-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Tech stack */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.tech-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.tech-card__icon {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.tech-card h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.tech-card p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* About company */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.stat-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--color-border);
  text-align: center;
}

.stat-card__value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 4px;
  word-break: break-all;
}

.stat-card__label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.about-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.about-text__short-name {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 16px !important;
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.requisites-list {
  list-style: none;
  margin-top: 24px;
}

.requisites-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
}

.requisites-list li strong {
  display: inline-block;
  min-width: 120px;
  color: var(--color-primary);
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info__item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-info__icon {
  width: 48px;
  height: 48px;
  background: rgba(23, 113, 241, 0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-info h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.contact-info p,
.contact-info a {
  font-size: 1rem;
  color: var(--color-text);
}

.contact-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  border: 1px solid var(--color-border);
}

.contact-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.contact-card p {
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

/* Footer */
.footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  padding: 48px 0 24px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer__brand {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer p {
  font-size: 0.875rem;
  line-height: 1.7;
}

.footer h4 {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 16px;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 8px;
}

.footer a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.875rem;
}

.footer a:hover {
  color: var(--color-white);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
}

/* Legal / IT page */
.legal-page {
  padding: 48px 0 80px;
}

.legal-page__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  color: var(--color-accent);
  margin-bottom: 32px;
}

.legal-page h1 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.legal-page__intro {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  margin-bottom: 48px;
  max-width: 800px;
}

.legal-section {
  margin-bottom: 48px;
}

.legal-section h2 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
}

.legal-section h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 24px 0 12px;
}

.legal-section p {
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.legal-section ul {
  padding-left: 24px;
  margin-bottom: 12px;
}

.legal-section li {
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.requisites-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
}

.requisites-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
  vertical-align: top;
}

.requisites-table td:first-child {
  font-weight: 600;
  color: var(--color-primary);
  width: 240px;
  white-space: nowrap;
}

.it-code-block {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  border-left: 4px solid var(--color-accent);
}

.it-code-block__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.it-code-block__code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 4px 12px;
  border-radius: 6px;
}

.it-code-block__title {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.9375rem;
}

.it-code-block__official {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
  line-height: 1.6;
}

.it-code-block__company {
  font-size: 0.875rem;
  color: var(--color-text);
  background: var(--color-white);
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.price-table-wrap {
  overflow-x: auto;
  margin-bottom: 24px;
}

.price-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.price-table th,
.price-table td {
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  text-align: left;
}

.price-table th {
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
}

.price-table tr:nth-child(even) td {
  background: var(--color-bg);
}

.price-table td:last-child {
  font-weight: 600;
  white-space: nowrap;
}

.notice-box {
  background: rgba(23, 113, 241, 0.06);
  border: 1px solid rgba(23, 113, 241, 0.15);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 24px;
}

.notice-box p {
  color: var(--color-text);
  font-size: 0.9375rem;
  margin: 0;
}

.placeholder-doc {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-bg);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 16px 24px;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  cursor: default;
}

/* Privacy page */
.privacy-content h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 32px 0 12px;
}

.privacy-content p,
.privacy-content li {
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.privacy-content ul {
  padding-left: 24px;
  margin-bottom: 16px;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--color-primary);
  font-size: 1.5rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero__inner,
  .product-intro,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero__image {
    display: none;
  }

  .advantages {
    grid-template-columns: 1fr;
    margin-top: 0;
  }

  .product-features {
    grid-template-columns: 1fr;
  }

  .screenshots-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

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

  .nav-toggle {
    display: block;
  }

  .nav.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 16px;
    box-shadow: var(--shadow-md);
  }

  .header__inner {
    position: relative;
  }

  .services-grid,
  .modules-grid {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

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

  .screenshots-grid {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 60px 0 80px;
  }

  .section {
    padding: 60px 0;
  }
}