/* UM Digital — minimal */

:root {
  --bg: #fafaf7;
  --surface: #ffffff;
  --fg: #0a0a0a;
  --muted: #6b6b6b;
  --line: #e6e3dc;
  --line-strong: #c8c5be;
  --brand: #1A4FA8;
  --max: 1120px;
  --mono: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 80px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

a { color: inherit; text-decoration: none; }
a:hover { opacity: 0.7; }

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

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
}

/* NAV */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: rgba(250,250,247,0.88);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
  z-index: 100;
  transform: translateZ(0);
  will-change: transform;
}

.nav__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  color: var(--brand);
  line-height: 0;
}
.nav__logo { transition: color .2s; }
.nav__logo:hover { opacity: 1; color: #143F88; }

.logo-mark {
  width: auto;
  height: 60px;
  display: block;
  fill: currentColor;
  overflow: visible;
}
.logo-mark--sm { height: 48px; }
.logo-mark__um {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 900;
  font-size: 110px;
  letter-spacing: -7px;
  fill: var(--brand);
}
.logo-mark__sub {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 800;
  font-size: 44px;
  letter-spacing: -1.2px;
  fill: var(--brand);
}

.nav__links {
  display: flex;
  gap: 32px;
}

.nav__link {
  font-size: 14px;
  color: var(--muted);
  font-weight: 400;
  transition: color 0.2s;
}
.nav__link:hover { color: var(--fg); opacity: 1; }

.nav__lang {
  display: flex;
  gap: 4px;
}
.lang-btn {
  background: none;
  border: none;
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: color 0.2s, background 0.2s;
}
.lang-btn:hover { color: var(--fg); }
.lang-btn.active { color: var(--fg); background: #f2f2f2; }

.nav__burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 4px;
}
.nav__burger span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--fg);
}

.nav__mobile {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--line);
  padding: 16px 32px;
  background: var(--bg);
}
.nav__mobile.open { display: flex; }
.nav__mobile .nav__link {
  padding: 12px 0;
  font-size: 15px;
}

/* HERO */
.hero {
  padding: 180px 0 120px;
  border-bottom: 1px solid var(--line);
}
.hero__title {
  font-size: clamp(40px, 5.4vw, 76px);
  font-weight: 600;
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: 32px;
}
.hero__sub {
  font-size: 18px;
  color: var(--muted);
  max-width: 480px;
  margin-bottom: 40px;
}
.link-arrow {
  font-size: 15px;
  font-weight: 500;
  border-bottom: 1px solid var(--fg);
  padding-bottom: 2px;
  display: inline-block;
}
.link-arrow:hover { opacity: 1; border-bottom-color: var(--muted); }

/* SECTIONS */
.section {
  padding: 120px 0;
  border-bottom: 1px solid var(--line);
}
.section-label {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--muted);
  margin-bottom: 56px;
}
.section-label::before {
  content: "—— ";
  color: var(--line-strong);
}

/* ABOUT */
.about__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 96px;
}
.about__text p {
  font-size: 17px;
  margin-bottom: 16px;
  max-width: 580px;
  color: #1a1a1a;
}
.about__stats {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.stat {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.stat__num {
  font-family: var(--mono);
  font-size: 48px;
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 10px;
}
.stat__label {
  font-size: 13px;
  color: var(--muted);
}

/* PROJECTS */
.projects__list {
  display: flex;
  flex-direction: column;
}
.project {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  padding: 40px 0;
  border-top: 1px solid var(--line);
}
.project:last-child { border-bottom: 1px solid var(--line); }

.project__meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.project__name {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.project__tags {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: -0.01em;
}
.project__title {
  font-size: 22px;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
  max-width: 640px;
}
.project__desc {
  font-size: 16px;
  color: var(--muted);
  max-width: 640px;
  line-height: 1.6;
}

/* PARTNERS */
.partners__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.partner {
  border-top: 1px solid var(--fg);
  padding: 24px 0 0;
}
.partner__name {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}
.partner__role {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

/* CONTACTS */
.contacts__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 96px;
}
.contact-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 24px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.contact-row:last-of-type { border-bottom: 1px solid var(--line); }
.contact-row__label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0;
}
.contact-row__value {
  font-size: 16px;
}
.contact-row__value a {
  border-bottom: 1px solid var(--line-strong);
}
.contact-row__value a:hover { border-bottom-color: var(--fg); opacity: 1; }

.map-embed { margin-top: 32px; }
.map-embed iframe {
  border: 1px solid var(--line);
  border-radius: 4px;
  display: block;
}
.map-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  color: var(--muted);
}

/* FORM */
.form__title {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}
.form__group { margin-bottom: 20px; }
.form__label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}
.form__input {
  width: 100%;
  font: inherit;
  font-size: 15px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg);
  color: var(--fg);
  transition: border-color 0.2s;
}
.form__input:focus { outline: none; border-color: var(--fg); }
.form__textarea {
  resize: vertical;
  min-height: 120px;
  font-family: inherit;
}
.btn {
  display: inline-block;
  font: inherit;
  font-size: 15px;
  font-weight: 500;
  padding: 12px 24px;
  background: var(--fg);
  color: var(--bg);
  border: 1px solid var(--fg);
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.btn:hover { background: #1a1a1a; opacity: 1; }
.btn--small { padding: 8px 16px; font-size: 14px; }

.form__success {
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  background: #f2f2f2;
  border-radius: 4px;
  font-size: 14px;
}
.form__success.visible { display: block; }

/* FOOTER */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}
.footer__brand,
.footer__logo { color: var(--brand); display: inline-flex; align-items: center; }
.footer__legal {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.footer__legal a { font-size: 13px; color: var(--muted); }
.footer__copy { font-size: 13px; color: var(--muted); }

/* COOKIE */
.cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  max-width: 560px;
  margin: 0 auto;
  background: var(--fg);
  color: var(--bg);
  padding: 16px 20px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 200;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}
.cookie-banner.hidden { display: none; }
.cookie-banner__text { font-size: 13px; flex: 1; line-height: 1.5; }
.cookie-banner__text a { text-decoration: underline; }
.cookie-banner .btn {
  background: var(--bg);
  color: var(--fg);
  border-color: var(--bg);
}

/* REVEAL */
.reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .container { padding: 0 24px; }
  .nav__inner { padding: 14px 24px; }
  .nav__links { display: none; }
  .nav__burger { display: flex; }
  .nav__lang { margin-left: auto; margin-right: 4px; }

  .hero { padding: 140px 0 80px; }
  .logo-mark { height: 48px; }
  .section { padding: 80px 0; }
  .section-label { margin-bottom: 40px; }

  .about__grid,
  .contacts__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .about__stats {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 24px;
  }
  .stat { flex: 1; min-width: 120px; }

  .project {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 32px 0;
  }

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

  .contact-row {
    grid-template-columns: 80px 1fr;
    gap: 16px;
  }

  .footer__inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .container { padding: 0 20px; }
  .nav__inner { padding: 12px 20px; }
  .hero__title { font-size: 36px; }
  .cookie-banner {
    flex-direction: column;
    align-items: stretch;
    left: 16px;
    right: 16px;
    bottom: 16px;
  }
}