/* Noraviix — базовий шар документних сторінок */

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

:root {
  --nv-slate: #1f2d44;
  --nv-steel: #34527d;
  --nv-cyan: #3fc6e8;
  --nv-cyan-soft: #d3f0f9;
  --nv-mist: #f2f5f8;
  --nv-ink: #17202e;
  --nv-grey: #5f6c7e;
  --nv-line: #dbe3ec;
  --nv-card: #ffffff;
  --nv-font: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  --nv-display: "Futura", "Century Gothic", "Trebuchet MS", sans-serif;
  --nv-r1: 10px;
  --nv-r2: 18px;
  --nv-r3: 26px;
  --nv-sh1: 0 4px 14px rgba(31, 45, 68, 0.07);
  --nv-sh2: 0 12px 30px rgba(31, 45, 68, 0.12);
  --nv-sh3: 0 22px 52px rgba(31, 45, 68, 0.18);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--nv-font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--nv-ink);
  background:
    radial-gradient(
      ellipse at 50% -10%,
      rgba(63, 198, 232, 0.16),
      transparent 55%
    ),
    linear-gradient(180deg, #ffffff 0%, #f2f5f8 100%);
}

a {
  color: var(--nv-steel);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: var(--nv-cyan);
}

/* ---------- шапка ---------- */
.nv--topbar {
  position: sticky;
  top: 0;
  z-index: 90;
  padding: 15px 20px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--nv-line);
}
.nv--topbar-inner {
  max-width: 1120px;
  margin: 0 auto;
  text-align: center;
}
.nv--topbar-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--nv-display);
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--nv-slate);
}
.nv--topbar-brand span {
  color: var(--nv-cyan);
}
.nv--topbar-brand:hover {
  color: var(--nv-steel);
}

/* ---------- широкий герой документа ---------- */
.nv--doc-hero {
  background: linear-gradient(112deg, var(--nv-slate) 0%, var(--nv-steel) 100%);
  color: #fff;
  padding: 0;
}
.nv--doc-hero-inner {
  max-width: 1060px;
  margin: 0 auto;
  padding: 54px 20px 50px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 34px;
  align-items: center;
}
.nv--doc-kicker {
  display: inline-block;
  margin-bottom: 14px;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid rgba(63, 198, 232, 0.55);
  background: rgba(63, 198, 232, 0.12);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--nv-cyan-soft);
}
.nv--doc-title {
  font-family: var(--nv-display);
  font-size: clamp(28px, 4.4vw, 46px);
  line-height: 1.12;
  font-weight: 700;
  margin-bottom: 14px;
}
.nv--doc-sub {
  max-width: 640px;
  font-size: 16.5px;
  line-height: 1.75;
  color: rgba(242, 245, 248, 0.78);
}
.nv--doc-date {
  flex: none;
  text-align: center;
  padding: 20px 26px;
  border-radius: var(--nv-r2);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(4px);
}
.nv--doc-date-big {
  font-family: var(--nv-display);
  font-size: 54px;
  line-height: 1;
  font-weight: 700;
  color: var(--nv-cyan);
}
.nv--doc-date-small {
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(242, 245, 248, 0.66);
}
@media (max-width: 800px) {
  .nv--doc-hero-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px 20px 38px;
  }
  .nv--doc-date {
    justify-self: start;
    padding: 14px 20px;
  }
  .nv--doc-date-big {
    font-size: 40px;
  }
}

/* ---------- підвал ---------- */
.nv--footer {
  margin-top: 52px;
  padding: 28px 20px 22px;
  background: var(--nv-slate);
  text-align: center;
}
.nv--footer-inner {
  max-width: 900px;
  margin: 0 auto;
}
.nv--footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 22px;
  margin-bottom: 14px;
}
.nv--footer-nav a {
  color: var(--nv-cyan-soft);
  font-size: 12px;
}
.nv--footer-nav a:hover {
  color: #fff;
  text-decoration: underline;
}
.nv--footer-note {
  max-width: 790px;
  margin: 0 auto 12px;
  font-size: 11px;
  line-height: 1.8;
  color: rgba(242, 245, 248, 0.6);
}
.nv--footer-copy {
  font-size: 11px;
  color: rgba(242, 245, 248, 0.45);
}