/* НУ «КАІ» — базовий CSS кафедри (v2, розширений) */
:root {
  --kai-blue: #267CEB;
  --kai-blue-dark: #234597;
  --kai-blue-light: #9EDFFF;
  --kai-blue-soft: #E8F2FE;
  --white: #FFFFFF;
  --ink: #0B1B3B;
  --ink-2: #1F2E52;
  --ink-soft: #4A5772;
  --line: #E3E9F3;
  --bg: #F7F9FC;
  --shadow-sm: 0 2px 8px rgba(11, 27, 59, 0.04);
  --shadow: 0 6px 24px rgba(35, 69, 151, 0.09);
  --shadow-lg: 0 12px 40px rgba(35, 69, 151, 0.14);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 28px;
  --container: 1240px;
  --pad: clamp(20px, 4vw, 40px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: hidden; }
body {
  margin: 0;
  font-family: 'Geologica', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}
main, section, header, footer { max-width: 100vw; overflow-x: clip; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--kai-blue-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font-family: inherit; cursor: pointer; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--pad); width: 100%; box-sizing: border-box; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

.skip-link { position: absolute; left: -9999px; top: 8px; background: var(--kai-blue-dark); color: #fff; padding: 12px 20px; border-radius: var(--radius-sm); z-index: 100; }
.skip-link:focus { left: 8px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.94);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px; gap: 24px;
}
.brand img { height: 40px; width: auto; }
.nav { display: flex; gap: 4px; align-items: center; }
.nav a { color: var(--ink); font-weight: 500; font-size: 15px; padding: 9px 14px; border-radius: var(--radius-sm); transition: background 0.15s, color 0.15s; }
.nav a:hover { background: var(--kai-blue-soft); color: var(--kai-blue-dark); text-decoration: none; }
.nav .cta { background: var(--kai-blue); color: #fff; margin-left: 8px; }
.nav .cta:hover { background: var(--kai-blue-dark); }
.burger { display: none; background: none; border: 0; padding: 8px; width: 44px; height: 44px; }
.burger span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px auto; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #1a58c4 0%, #267CEB 55%, #234597 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
  padding: clamp(72px, 12vw, 132px) 0 clamp(80px, 10vw, 128px);
  max-width: 100vw;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 15% 30%, rgba(158,223,255,0.25), transparent 50%),
    radial-gradient(circle at 85% 80%, rgba(35,69,151,0.6), transparent 45%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: linear-gradient(135deg, rgba(0,0,0,0.5), transparent 70%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.hero-left { min-width: 0; }
.breadcrumb { font-size: 13px; opacity: 0.85; margin-bottom: 20px; display: flex; flex-wrap: wrap; gap: 6px; }
.breadcrumb a { color: #fff; text-decoration: underline; text-decoration-color: rgba(255,255,255,0.4); }
.hero-eyebrow { display: inline-block; padding: 6px 14px; border: 1px solid rgba(255,255,255,0.35); border-radius: 999px; font-size: 13px; font-weight: 500; letter-spacing: 0.08em; margin: 0 0 20px; text-transform: uppercase; }
.hero h1 { font-size: clamp(24px, 3.6vw, 44px); font-weight: 800; line-height: 1.12; margin: 0 0 20px; letter-spacing: -0.015em; }
.hero .lead { font-size: clamp(15px, 1.4vw, 18px); opacity: 0.92; margin: 0 0 28px; max-width: 580px; }

.hero-right { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; min-width: 0; }
.hero-tile { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18); border-radius: var(--radius); padding: 20px 18px; backdrop-filter: blur(8px); }
.hero-tile strong { display: block; font-size: 15px; margin-bottom: 6px; }
.hero-tile span, .hero-tile a { display: block; font-size: 14px; color: rgba(255,255,255,0.85); }
.hero-tile a { color: #fff; text-decoration: underline; text-decoration-color: rgba(255,255,255,0.4); }
.hero-tile--accent { background: #fff; color: var(--ink); border-color: #fff; }
.hero-tile--accent strong { color: var(--kai-blue-dark); }
.hero-tile--accent a { color: var(--kai-blue-dark); font-weight: 600; }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; max-width: 100%; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 26px; border-radius: 999px; font-weight: 600; font-size: 15px; transition: transform 0.15s, background 0.15s; border: 2px solid transparent; white-space: nowrap; }
.btn:hover { text-decoration: none; }
.btn-primary { background: #fff; color: var(--kai-blue-dark); }
.btn-primary:hover { background: var(--kai-blue-light); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.5); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); }
.btn-outline { background: transparent; color: var(--kai-blue-dark); border-color: var(--kai-blue-dark); }
.btn-outline:hover { background: var(--kai-blue-dark); color: #fff; }

/* Sections */
section { padding: clamp(64px, 8vw, 112px) 0; }
.section-alt { background: #fff; }
.section-dark { background: var(--ink); color: rgba(255,255,255,0.88); }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-head { max-width: 820px; margin-bottom: 48px; }
.section-head--light p { color: rgba(255,255,255,0.75); }
.eyebrow { color: var(--kai-blue-dark); font-size: 13px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; margin: 0 0 14px; }
.eyebrow--light { color: var(--kai-blue-light); }
.section-head h2 { font-size: clamp(26px, 3.6vw, 44px); font-weight: 800; margin: 0 0 16px; line-height: 1.1; letter-spacing: -0.01em; }
.section-head p { color: var(--ink-soft); font-size: 17px; margin: 0; }
.subhead { font-size: 14px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); margin: 40px 0 20px; }

/* Stats section */
.stats-section { padding: 40px 0; background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; }
@media (max-width: 900px) { .stats-row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; } }
@media (max-width: 400px) { .stats-row { grid-template-columns: 1fr; gap: 16px; } }
.stat-big { text-align: left; }
.stat-big strong { display: block; font-size: clamp(30px, 3.4vw, 48px); font-weight: 800; color: var(--kai-blue-dark); line-height: 1; letter-spacing: -0.02em; }
.stat-big span { display: block; margin-top: 8px; color: var(--ink-soft); font-size: 14px; font-weight: 500; }

/* Prose */
.prose { max-width: 840px; }
.prose p { font-size: 17px; margin: 0 0 18px; color: var(--ink); }

/* Pillars */
.pillars { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; margin-top: 56px; }
@media (max-width: 900px) { .pillars { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 500px) { .pillars { grid-template-columns: 1fr; } }
.pillar { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; }
.pillar-num { display: inline-block; font-size: 13px; font-weight: 700; color: var(--kai-blue); background: var(--kai-blue-soft); padding: 3px 10px; border-radius: 999px; margin-bottom: 12px; }
.pillar h3 { margin: 0 0 8px; font-size: 18px; }
.pillar p { color: var(--ink-soft); font-size: 15px; margin: 0; }

/* Grid & cards */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 900px) {
  .grid-2, .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; box-shadow: var(--shadow-sm); transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s; }
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--kai-blue-light); }
.card h3 { margin: 0 0 10px; font-size: 18px; font-weight: 700; color: var(--ink); }
.card p { margin: 0 0 12px; color: var(--ink-soft); font-size: 15px; line-height: 1.55; }
.tag { display: inline-block; background: var(--kai-blue-soft); color: var(--kai-blue-dark); padding: 5px 12px; border-radius: 999px; font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 14px; }

/* Program cards */
.program-card { display: flex; flex-direction: column; }
.prog-meta { display: grid; grid-template-columns: 1fr; gap: 8px; margin: 12px 0 16px; padding: 12px 0; border-top: 1px dashed var(--line); border-bottom: 1px dashed var(--line); }
.prog-meta > div { display: flex; justify-content: space-between; font-size: 14px; }
.prog-meta dt { color: var(--ink-soft); margin: 0; }
.prog-meta dd { margin: 0; color: var(--ink); font-weight: 600; }
.prog-note { font-size: 14px; color: var(--ink-soft); margin: 0; }
.programs-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }

/* Guarantor / head */
.person-big {
  display: grid; grid-template-columns: 160px 1fr; gap: 32px; align-items: center;
  background: linear-gradient(135deg, var(--kai-blue-soft), #fff);
  border: 1px solid var(--kai-blue-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  margin-bottom: 40px;
}
.avatar { width: 128px; height: 128px; border-radius: 50%; background: linear-gradient(135deg, var(--kai-blue), var(--kai-blue-dark)); color: #fff; display: grid; place-items: center; font-size: 40px; font-weight: 700; flex-shrink: 0; }
.person-big .eyebrow { margin-bottom: 8px; }
.person-big h3 { font-size: 24px; margin: 0 0 6px; }
.person-big p { margin: 0 0 16px; color: var(--ink-soft); font-size: 16px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: 13px; color: var(--ink); }

/* Teacher cards */
.teachers-grid { margin-top: 24px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 900px) { .teachers-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 500px) { .teachers-grid { grid-template-columns: 1fr; } }
.teacher-card { text-align: center; padding: 32px 20px; }
.teacher-card .avatar { width: 84px; height: 84px; font-size: 28px; margin: 0 auto 16px; }
.teacher-card h3 { font-size: 16px; margin: 0 0 6px; }
.teacher-card p { font-size: 13px; color: var(--ink-soft); margin: 0; }
.soft-note { background: var(--kai-blue-soft); border-left: 4px solid var(--kai-blue); border-radius: var(--radius-sm); padding: 20px 24px; font-size: 15px; color: var(--ink); margin-top: 24px; }

/* Doc / opp cards with SVG icons */
.icon-square {
  width: 44px; height: 44px; border-radius: 12px;
  display: inline-grid; place-items: center; margin-bottom: 16px;
  background: var(--kai-blue-soft); color: var(--kai-blue-dark);
  flex-shrink: 0;
}
.icon-square svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.doc-card, .opp-card { display: flex; flex-direction: column; align-items: flex-start; }
.opp-card { text-decoration: none; color: inherit; }
.opp-card:hover { text-decoration: none; }

/* Research cards (dark section) */
.research-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 900px) { .research-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .research-grid { grid-template-columns: 1fr; } }
.research-card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius); padding: 28px 24px; }
.research-card__num { color: var(--kai-blue-light); font-size: 13px; font-weight: 700; letter-spacing: 0.14em; }
.research-card h3 { font-size: 17px; margin: 12px 0 8px; color: #fff; }
.research-card p { color: rgba(255,255,255,0.68); font-size: 14px; margin: 0; }

/* Partners */
.partner-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 900px) { .partner-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 600px) { .partner-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.partner { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 20px 18px; text-align: center; color: var(--ink); font-weight: 600; font-size: 14px; min-height: 88px; display: grid; place-items: center; }
.lab-card { border-top: 3px solid var(--kai-blue); }

/* Opportunities */
.opps-grid { margin-top: 20px; }

/* ============================================
   DOCUMENTS SECTION — accreditation materials
   Integrated with site palette; understated but findable.
   ============================================ */
.btn-docs {
  background: var(--kai-blue);
  color: #fff;
  border-color: var(--kai-blue);
  font-weight: 600;
}
.btn-docs:hover { background: var(--kai-blue-dark); color: #fff; }

.nav-docs {
  background: var(--kai-blue-soft) !important;
  color: var(--kai-blue-dark) !important;
  font-weight: 600 !important;
}
.nav-docs:hover { background: var(--kai-blue-light) !important; }

.hero-tile--docs {
  grid-column: 1 / -1;
  background: rgba(255, 255, 255, 0.14) !important;
  color: #fff !important;
  border: 1px solid rgba(255, 255, 255, 0.28) !important;
  text-decoration: none !important;
  display: block;
  padding: 18px 22px !important;
  transition: transform 0.15s, background 0.15s;
}
.hero-tile--docs:hover { background: rgba(255, 255, 255, 0.22) !important; transform: translateY(-2px); }
.hero-tile--docs strong { color: #fff !important; font-size: 17px !important; margin-bottom: 4px !important; letter-spacing: 0.01em; }
.hero-tile--docs span { color: rgba(255,255,255,0.85) !important; font-weight: 500; font-size: 14px; }

.documents-section {
  background: #FFFFFF;
  border-top: 1px solid var(--line);
  padding: clamp(48px, 6vw, 80px) 0;
}

.documents-banner {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 40px;
}

.documents-banner__title {
  font-size: clamp(26px, 3.6vw, 44px);
  font-weight: 800;
  line-height: 1.1;
  margin: 0 0 22px;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.documents-banner__ctas {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
}
.documents-banner__ctas .btn-primary {
  background: var(--kai-blue); color: #fff; border-color: var(--kai-blue);
  font-size: 15px; padding: 12px 22px;
}
.documents-banner__ctas .btn-primary:hover { background: var(--kai-blue-dark); color: #fff; }
.documents-banner__ctas .btn-outline {
  color: var(--kai-blue-dark); border-color: var(--kai-blue-dark); font-size: 15px; padding: 12px 22px;
}
.documents-banner__ctas .btn-outline:hover { background: var(--kai-blue-dark); color: #fff; }

.documents-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
@media (max-width: 980px) { .documents-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .documents-grid { grid-template-columns: 1fr; } }

.doc-group-card {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 22px 18px;
  display: flex; flex-direction: column;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
  scroll-margin-top: 90px;
}
.doc-group-card:hover {
  transform: translateY(-2px);
  border-color: var(--kai-blue-light);
  box-shadow: var(--shadow);
}
.doc-group-card:target {
  border-color: var(--kai-blue);
  box-shadow: 0 0 0 4px var(--kai-blue-soft), var(--shadow);
}
.doc-group-card__head {
  display: flex; align-items: flex-start; gap: 14px;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.doc-group-card__icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: var(--kai-blue-soft); color: var(--kai-blue-dark);
  border-radius: 10px;
  display: inline-grid; place-items: center;
}
.doc-group-card__icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.doc-group-card h3 {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.25;
}
.doc-group-card__sub {
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.45;
}
.doc-group-card__list {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  flex: 1;
}
.doc-group-card__list li {
  position: relative;
  padding: 7px 0 7px 22px;
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.45;
  border-bottom: 1px solid var(--line);
}
.doc-group-card__list li:last-child { border-bottom: 0; }
.doc-group-card__list li::before {
  content: '';
  position: absolute;
  left: 0; top: 13px;
  width: 10px; height: 6px;
  border-left: 2px solid var(--kai-blue);
  border-bottom: 2px solid var(--kai-blue);
  transform: rotate(-45deg);
}
.doc-group-card__link {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--kai-blue-dark);
  color: #fff !important;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none !important;
  transition: background 0.15s, transform 0.15s;
  align-self: flex-start;
}
.doc-group-card__link:hover { background: var(--kai-blue); transform: translateX(3px); }
.doc-group-card__link svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }

.documents-note {
  margin-top: 32px;
  display: flex; align-items: flex-start; gap: 18px;
  background: var(--kai-blue-soft);
  border: 1px solid var(--kai-blue-light);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 22px 26px;
}
.documents-note__icon {
  width: 48px; height: 48px; flex-shrink: 0;
  background: var(--kai-blue);
  border-radius: 12px;
  display: inline-grid; place-items: center;
}
.documents-note__icon svg { width: 24px; height: 24px; fill: none; stroke: #fff; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.documents-note strong { display: block; font-size: 16px; margin-bottom: 4px; color: var(--kai-blue-dark); }
.documents-note p { margin: 0; font-size: 14.5px; color: var(--ink-soft); line-height: 1.55; }
.documents-note a { color: var(--kai-blue-dark); text-decoration: underline; font-weight: 600; }

@media (max-width: 620px) {
  .documents-note { flex-direction: column; padding: 20px; }
  .doc-group-card__head { flex-direction: column; }
  .doc-group-card__icon { margin-bottom: 4px; }
}

/* Final CTA */
.cta-final { background: linear-gradient(135deg, var(--kai-blue-dark), var(--kai-blue)); color: #fff; padding: clamp(64px, 8vw, 100px) 0; text-align: center; }
.cta-final h2 { font-size: clamp(28px, 3.6vw, 42px); margin: 8px 0 16px; color: #fff; letter-spacing: -0.01em; }
.cta-final p { font-size: 17px; opacity: 0.92; margin: 0 auto 28px; max-width: 640px; }
.cta-final .cta-row { justify-content: center; }

/* Footer */
.site-footer { background: var(--ink); color: rgba(255,255,255,0.85); padding: 72px 0 32px; font-size: 14px; }
.site-footer .container { display: grid; gap: 32px; grid-template-columns: 1.6fr 1fr 1fr 1fr; }
.footer-brand img { filter: brightness(0) invert(1); height: 40px; }
.footer-brand p { max-width: 280px; margin: 16px 0 0; }
.site-footer h4 { color: #fff; margin: 0 0 16px; font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 700; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 10px; }
.site-footer a { color: rgba(255,255,255,0.85); }
.site-footer a:hover { color: var(--kai-blue-light); }
.footer-bottom { grid-column: 1 / -1; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; font-size: 13px; color: rgba(255,255,255,0.6); }
.socials { display: flex; gap: 12px; margin-top: 20px; }
.socials a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.08); display: grid; place-items: center; color: #fff; }
.socials a:hover { background: var(--kai-blue); }
.socials svg { width: 18px; height: 18px; fill: currentColor; }

/* Mobile */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-right { grid-template-columns: 1fr 1fr; }
  .site-footer .container { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .nav { display: none; position: absolute; top: 100%; right: 0; left: 0; flex-direction: column; align-items: stretch; padding: 12px; background: #fff; border-bottom: 1px solid var(--line); }
  .nav.open { display: flex; }
  .nav a { padding: 12px 16px; }
  .nav .cta { margin-left: 0; text-align: center; }
  .burger { display: block; }
  .site-header { position: relative; }
  .person-big { grid-template-columns: 1fr; text-align: center; padding: 28px 20px; }
  .person-big .avatar { margin: 0 auto; }
  .chip-row { justify-content: center; }
}
@media (max-width: 600px) {
  .hero { padding: 48px 0 56px; }
  .hero-right { grid-template-columns: 1fr; }
  .hero-tile { padding: 16px; }
  .cta-row { flex-direction: column; align-items: stretch; }
  .cta-row .btn { width: 100%; max-width: 100%; justify-content: center; box-sizing: border-box; white-space: normal; }
  .site-footer .container { grid-template-columns: 1fr; }
  .btn { padding: 12px 18px; font-size: 14px; }
  .card { padding: 22px 20px; }
  .stats-row { gap: 20px; }
  .partner-grid { grid-template-columns: 1fr 1fr; }
  .hero-inner { padding-left: var(--pad); padding-right: var(--pad); }
}
@media (max-width: 420px) {
  :root { --pad: 16px; }
  .hero h1 { font-size: 24px; line-height: 1.15; }
  .section-head h2 { font-size: 22px; }
  .hero .lead { font-size: 14px; }
  .prose p { font-size: 15px; }
  .hero-eyebrow { font-size: 11px; letter-spacing: 0.06em; padding: 5px 12px; }
  .breadcrumb { font-size: 12px; }
  .avatar { width: 96px; height: 96px; font-size: 30px; }
  .stat-big strong { font-size: 30px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}