/* ========================================
   Data Tech Optimum — Hi-Tech Dark Theme
   ======================================== */

/* 1. Custom Properties */
:root {
  --color-bg: #0A0E17;
  --color-bg-card: #141B2D;
  --color-bg-raised: #1A2340;
  --color-bg-alt: #0F1526;
  --color-accent: #00D4FF;
  --color-accent-hover: #00B8E0;
  --color-accent2: #7B61FF;
  --color-white: #FFFFFF;
  --color-text: #E8ECF4;
  --color-text-secondary: #8892A8;
  --color-text-muted: #5A6580;
  --color-border: rgba(0, 212, 255, 0.12);
  --color-glow: rgba(0, 212, 255, 0.15);

  --font-heading: 'JetBrains Mono', monospace;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --container-max: 1200px;
  --header-h: 96px;
  --transition: 300ms ease;
  --radius: 12px;
  --radius-sm: 8px;
}

/* 2. Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* 3. Layout */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.section { padding: 5rem 0; }
.section--light { background: var(--color-bg-alt); }
.section--dark { background: var(--color-bg); }
.section--deep { background: var(--color-bg); }
.section__title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.section__title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent2));
  margin: 0.75rem auto 0;
  border-radius: 2px;
}

/* 4. Typography */
h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

/* 5. Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  gap: 0.5rem;
}
.btn--primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent2));
  color: var(--color-bg);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--color-glow), 0 0 40px rgba(123, 97, 255, 0.2);
}
.btn--outline {
  border: 1px solid var(--color-border);
  color: var(--color-text);
  backdrop-filter: blur(4px);
}
.btn--outline:hover {
  border-color: var(--color-accent);
  background: rgba(0, 212, 255, 0.05);
  box-shadow: 0 0 20px var(--color-glow);
}

/* ========================================
   6. Header
   ======================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.is-scrolled {
  background: rgba(10, 14, 23, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}
.logo img {
  height: 84px;
  width: auto;
  filter: drop-shadow(0 0 12px rgba(0, 212, 255, 0.3));
}
.nav-menu ul {
  display: flex;
  gap: 2rem;
}
.nav-menu a {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-menu a:hover { color: var(--color-accent); }
.lang-switch {
  display: flex;
  gap: 0.5rem;
}
.lang-switch a {
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-heading);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  transition: all var(--transition);
}
.lang-switch a:hover { color: var(--color-accent); }
.lang-switch a.is-active {
  color: var(--color-accent);
  background: rgba(0, 212, 255, 0.1);
}

/* Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}
.menu-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================================
   7. Hero
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-bg);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: url('assets/bg/bg-3-digital-grid.webp') center/cover no-repeat;
  opacity: 0.15;
  transition: background-image 0.8s ease;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(0, 212, 255, 0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 80%, rgba(123, 97, 255, 0.06) 0%, transparent 50%);
}
.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding-top: var(--header-h);
  padding-left: 2rem;
  padding-right: 2rem;
  padding-bottom: 2rem;
  border: 1px solid rgba(0, 212, 255, 0.25);
  border-radius: 20px;
  background: rgba(10, 14, 23, 0.5);
  backdrop-filter: blur(8px);
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.08), inset 0 0 60px rgba(0, 212, 255, 0.03);
}
.hero__title {
  font-size: 3.5rem;
  color: var(--color-white);
  margin-bottom: 1.5rem;
  line-height: 1.15;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.6), 0 0 40px rgba(0, 212, 255, 0.15);
  font-weight: 700;
}
.hero__title span {
  background: linear-gradient(135deg, #00E5FF, #7B61FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.4));
}
.hero__subtitle {
  font-size: 1.25rem;
  color: var(--color-text);
  margin-bottom: 2.5rem;
  line-height: 1.7;
  max-width: 600px;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.5);
}
.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}
.hero__trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  padding: 1.25rem 1.5rem;
  margin-top: 2rem;
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 12px;
  background: rgba(0, 212, 255, 0.05);
}
.hero__trust-text {
  font-size: 0.8rem;
  color: var(--color-accent);
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
  text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}
.hero__trust-logos {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}
.hero__trust-logos img {
  height: 22px;
  opacity: 0.7;
  filter: brightness(0) invert(1);
  transition: opacity var(--transition);
}
.hero__trust-logos img:hover { opacity: 1; }

/* ========================================
   8. Stats
   ======================================== */
.stats {
  padding: 4rem 0;
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}
.stat {
  padding: 1.5rem;
}
.stat__number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.5rem;
}
.stat__label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* ========================================
   9. Services
   ======================================== */
#services {
  position: relative;
  overflow: hidden;
}
#services::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('assets/bg/bg-1-server-corridor.webp') center/cover no-repeat;
  opacity: 0.06;
  z-index: 0;
}
#services > .container {
  position: relative;
  z-index: 1;
}
.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.services__grid .card:last-child {
  grid-column: 1 / -1;
}
.card {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid var(--color-border);
  box-shadow: none;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent2));
  opacity: 0;
  transition: opacity var(--transition);
}
.card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 0 30px var(--color-glow);
  transform: translateY(-2px);
}
.card:hover::before { opacity: 1; }
.card__icon {
  width: 48px;
  height: 48px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.card__icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
}
.card__title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.card__text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}
.card__vendors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.vendor-tag {
  font-size: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 500;
  padding: 0.25rem 0.625rem;
  background: rgba(0, 212, 255, 0.06);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text-secondary);
}
.card__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.card__list li {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  padding-left: 1.25rem;
  position: relative;
}
.card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-glow);
}
.card__list + .card__vendors {
  margin-top: 1rem;
}

/* ========================================
   10. Advantages
   ======================================== */
.advantages__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.advantage {
  text-align: center;
  padding: 1.5rem;
}
.advantage__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.25rem;
  background: rgba(0, 212, 255, 0.06);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.advantage:hover .advantage__icon {
  box-shadow: 0 0 20px var(--color-glow);
  border-color: var(--color-accent);
}
.advantage__icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
}
.advantage__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.advantage__text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ========================================
   11. Cases
   ======================================== */
.cases__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.case-card {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  transition: all var(--transition);
}
.case-card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 0 20px var(--color-glow);
}
.case-card__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid var(--color-border);
  color: var(--color-accent);
  border-radius: 4px;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.case-card__section {
  margin-bottom: 1rem;
}
.case-card__label {
  font-size: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}
.case-card__value {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}
.case-card__result {
  font-weight: 600;
  color: var(--color-accent);
}

/* ========================================
   12. Partners
   ======================================== */
.partners__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
  align-items: center;
  justify-items: center;
  margin-bottom: 2rem;
}
.partner-logo {
  height: 108px;
  width: auto;
  filter: brightness(1.2);
  transition: filter var(--transition), box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  padding: 10px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
}
.partner-logo:hover,
.partner-logo:active {
  filter: brightness(1.4);
  border-color: #FF2D55;
  box-shadow: 0 0 16px rgba(255, 45, 85, 0.5), 0 0 32px rgba(255, 45, 85, 0.2);
  transform: scale(1.1);
}
.partners__text {
  text-align: center;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ========================================
   13. About
   ======================================== */
.about {
  position: relative;
  overflow: hidden;
  background: var(--color-bg);
}
.about__bg {
  position: absolute;
  inset: 0;
  background: url('assets/bg/bg-5-network-lines.webp') center/cover no-repeat;
  opacity: 0.05;
}
.about__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.about__text h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}
.about__text h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent2));
  margin-top: 0.75rem;
  border-radius: 2px;
}
.about__text p {
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  line-height: 1.7;
}
.about__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
}
.about__card-row {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
}
.about__card-row:last-child { border-bottom: none; }
.about__card-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}
.about__card-value {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

/* ========================================
   14. Contacts
   ======================================== */
.contacts__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.contact-card {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.contact-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 25px var(--color-glow);
  transform: translateY(-2px);
}
.contact-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  background: rgba(0, 212, 255, 0.06);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-card__icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
}
.contact-card__label {
  font-size: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}
.contact-card__value {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
}
.contact-card__value a {
  color: var(--color-text);
  transition: color var(--transition);
}
.contact-card__value a:hover { color: var(--color-accent); }
.contacts__address {
  text-align: center;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ========================================
   15. Footer
   ======================================== */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  padding: 3rem 0 1.5rem;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer__logo img { height: 66px; width: auto; margin-bottom: 0.75rem; }
.footer__tagline {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}
.footer__heading {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}
.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.footer__links a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--color-accent); }
.footer__contact-item {
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}
.footer__contact-item a {
  color: var(--color-text-secondary);
  transition: color var(--transition);
}
.footer__contact-item a:hover { color: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}
.footer-bottom .lang-switch a {
  color: var(--color-text-muted);
  font-size: 0.75rem;
}
.footer-bottom .lang-switch a:hover { color: var(--color-accent); }
.footer-bottom .lang-switch a.is-active { color: var(--color-accent); background: rgba(0, 212, 255, 0.1); }

/* ========================================
   16. Responsive
   ======================================== */
@media (max-width: 1023px) {
  .hero__title { font-size: 2.25rem; }
  .section__title { font-size: 1.75rem; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .services__grid { grid-template-columns: 1fr; }
  .services__grid .card:last-child { grid-column: auto; }
  .advantages__grid { grid-template-columns: repeat(2, 1fr); }
  .cases__grid { grid-template-columns: 1fr; }
  .about__inner { grid-template-columns: 1fr; }
  .contacts__grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .partners__grid { grid-template-columns: repeat(3, 1fr); }
  .logo img { height: 63px; }
  .footer__logo img { height: 57px; }
  .hero__trust-logos { gap: 1rem; }
}

@media (max-width: 767px) {
  :root { --header-h: 72px; }
  .section { padding: 3rem 0; }
  .section__title { font-size: 1.5rem; margin-bottom: 2rem; }
  .hero { min-height: auto; padding: 6rem 0 3rem; }
  .hero__title { font-size: 1.75rem; }
  .hero__subtitle { font-size: 0.9375rem; }
  .hero__actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .hero__trust { flex-direction: column; gap: 0.75rem; align-items: center; text-align: center; }
  .hero__trust-logos {
    display: grid;
    grid-template-columns: repeat(4, auto);
    gap: 0.75rem 1rem;
    align-items: center;
    justify-content: center;
  }
  .hero__trust-logos img { height: 16px; }
  .stat__number { font-size: 2rem; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .advantages__grid { grid-template-columns: 1fr; }
  .partners__grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
  .partner-logo { height: 84px; padding: 14px; }
  .footer-bottom { flex-direction: column; gap: 0.75rem; text-align: center; }
  .logo img { height: 54px; }
  .footer__logo { text-align: center; }
  .footer__logo img { height: 48px; margin: 0 auto 0.75rem; }

  /* Card compact on mobile */
  .card { padding: 1.5rem; }
  .card__title { font-size: 1rem; }
  .card__text { font-size: 0.875rem; }

  /* About card */
  .about__card-row { flex-direction: column; gap: 0.25rem; }

  /* Contacts */
  .contact-card { padding: 1.5rem; }

  /* Mobile menu */
  .menu-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(12px);
    padding: 1.5rem;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
    border-bottom: 1px solid var(--color-border);
  }
  .nav-menu.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-menu ul {
    flex-direction: column;
    gap: 1rem;
  }
  .nav-menu a { font-size: 1rem; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 1.5rem; }
  .hero__subtitle { font-size: 0.875rem; line-height: 1.6; }
  .hero__trust-logos {
    grid-template-columns: repeat(3, auto);
    gap: 0.5rem 0.75rem;
  }
  .hero__trust-logos img { height: 14px; }
  .stat__number { font-size: 1.75rem; }
  .stat__label { font-size: 0.75rem; }
  .partners__grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
  .partner-logo { height: 72px; padding: 12px; }
  .section__title { font-size: 1.25rem; }
  .case-card { padding: 1.25rem; }
  .case-card__value { font-size: 0.8125rem; }
  .advantage__text { font-size: 0.8125rem; }
  .logo img { height: 48px; }
}

/* ========================================
   17. Animations
   ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}