:root {
  --navy: #0f213c;
  --teal: #2fa3bd;
  --cool-gray: rgb(210, 210, 206);
  --warm: rgb(243, 239, 231);
  --white: #ffffff;
  --text: #1f2b38;
  --muted: #5a6877;
  --line: rgba(15, 33, 60, 0.12);
  --shadow: 0 14px 36px rgba(15, 33, 60, 0.12);
  --radius: 22px;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: var(--warm);
  line-height: 1.7;
}
a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.topbar {
  background: var(--navy);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 0;
}
.logo-wrap { display: flex; flex-direction: column; gap: 3px; }
.logo { font-size: 31px; line-height: 1; font-weight: 800; letter-spacing: -0.03em; color: var(--white); }
.logo .accent { color: #6fc7d7; }
.logo small { font-size: 0.55em; }
.tagline { color: var(--cool-gray); font-size: 14px; letter-spacing: 0.02em; }
.nav { display: flex; flex-wrap: wrap; gap: 14px; font-size: 15px; }
.nav a { color: rgba(255,255,255,0.92); }
.nav a.cta-link { padding: 10px 14px; border-radius: 999px; background: rgba(47,163,189,0.16); border: 1px solid rgba(111,199,215,0.3); }
.hero {
  background: linear-gradient(180deg, var(--navy) 0%, #153056 100%);
  color: var(--white);
  padding: 74px 0 62px;
}
.hero-grid { display: grid; grid-template-columns: minmax(0,1.35fr) minmax(260px,0.85fr); gap: 34px; align-items: start; }
.eyebrow { color: #8dd7e4; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; font-size: 13px; margin-bottom: 14px; }
h1 { margin: 0 0 18px; font-size: clamp(36px, 6vw, 62px); line-height: 1.04; letter-spacing: -0.045em; }
.hero p.lead { font-size: 19px; color: rgba(255,255,255,0.92); max-width: 850px; margin: 0 0 16px; }
.hero p.sublead { font-size: 17px; color: rgba(255,255,255,0.82); margin: 0; }
.hero-card, .card, .article-item, .faq-item, .checklist-box, .info-box {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--white);
  padding: 24px;
}
.hero-card h2 { margin: 0 0 12px; font-size: 24px; color: var(--white); }
.hero-card p { margin: 0 0 12px; color: rgba(255,255,255,0.88); }
.hero-card ul { margin: 0; padding-left: 18px; }
.hero-card li + li { margin-top: 8px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
.button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 20px; border-radius: 999px; font-weight: 700; text-decoration: none; border: 1px solid transparent;
}
.button-primary { background: var(--teal); color: var(--white); }
.button-secondary { color: var(--white); border-color: rgba(255,255,255,0.22); background: rgba(255,255,255,0.04); }
.keyword-strip { background: var(--white); border-bottom: 1px solid var(--line); }
.keyword-strip-inner { display: flex; flex-wrap: wrap; gap: 12px; padding: 18px 0; }
.chip { display: inline-flex; align-items: center; padding: 8px 14px; border-radius: 999px; background: rgba(47,163,189,0.09); color: var(--navy); border: 1px solid rgba(47,163,189,0.16); font-size: 14px; font-weight: 600; }
section { padding: 72px 0; }
.page-hero { background: linear-gradient(180deg, rgba(47,163,189,0.08) 0%, rgba(47,163,189,0.03) 100%); border-bottom: 1px solid rgba(47,163,189,0.12); }
.page-hero-inner { padding: 58px 0 44px; }
.page-hero h1 { color: var(--navy); font-size: clamp(34px, 5vw, 54px); }
.page-hero p { font-size: 18px; color: var(--muted); max-width: 920px; }
.breadcrumb { font-size: 14px; color: var(--muted); margin-bottom: 14px; }
.section-title { max-width: 860px; margin-bottom: 28px; }
.section-title .mini { text-transform: uppercase; letter-spacing: 0.08em; color: var(--teal); font-weight: 700; font-size: 13px; margin-bottom: 10px; }
.section-title h2 { margin: 0 0 14px; font-size: clamp(28px, 4vw, 42px); line-height: 1.1; letter-spacing: -0.04em; color: var(--navy); }
.section-title p { margin: 0; color: var(--muted); font-size: 18px; }
.cards, .article-list { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px; }
.two-col, .checklist-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px; }
.card, .article-item, .checklist-box, .info-box { padding: 24px; }
.card h3, .article-item h3, .checklist-box h3, .info-box h3 { margin: 0 0 12px; font-size: 23px; line-height: 1.2; color: var(--navy); }
.card p, .article-item p, .info-box p { margin: 0 0 12px; color: var(--muted); }
.card ul, .article-item ul, .checklist-box ul, .checklist-box ol, .info-box ul { margin: 0; padding-left: 18px; color: var(--muted); }
.card li + li, .article-item li + li, .checklist-box li + li, .info-box li + li { margin-top: 8px; }
.soft-bg { background: linear-gradient(180deg, rgba(47,163,189,0.08) 0%, rgba(47,163,189,0.03) 100%); border-top: 1px solid rgba(47,163,189,0.12); border-bottom: 1px solid rgba(47,163,189,0.12); }
.faq { display: grid; gap: 18px; }
.faq-item { padding: 22px; }
.faq-item h3 { margin: 0 0 10px; font-size: 21px; color: var(--navy); }
.faq-item p { margin: 0; color: var(--muted); }
.cta { background: var(--navy); color: var(--white); border-radius: 28px; padding: 34px; display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: space-between; box-shadow: 0 18px 60px rgba(15,33,60,0.22); }
.cta h2 { margin: 0 0 8px; font-size: clamp(28px, 4vw, 38px); line-height: 1.1; color: var(--white); }
.cta p { margin: 0; max-width: 780px; color: rgba(255,255,255,0.88); font-size: 17px; }
.inline-links { display: flex; flex-wrap: wrap; gap: 12px; }
.inline-links a { display: inline-flex; padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line); background: #fff; }
footer { background: #0b1830; color: rgba(255,255,255,0.84); padding: 36px 0 40px; margin-top: 72px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 22px; align-items: start; }
.footer-grid h3 { margin: 0 0 8px; color: var(--white); font-size: 22px; }
.footer-grid p { margin: 0 0 10px; color: rgba(255,255,255,0.82); }
.footer-meta { font-size: 14px; color: rgba(255,255,255,0.66); margin-top: 16px; }
.cookie-banner {
  position: fixed; left: 20px; right: 20px; bottom: 20px; z-index: 9999; display: none; max-width: 860px; margin: 0 auto; background: rgba(15,33,60,0.97); color: var(--white); border: 1px solid rgba(255,255,255,0.08); border-radius: 24px; box-shadow: 0 24px 80px rgba(0,0,0,0.28); padding: 22px;
}
.cookie-banner h3 { margin: 0 0 8px; font-size: 22px; }
.cookie-banner p { margin: 0; color: rgba(255,255,255,0.88); font-size: 15px; }
.cookie-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 16px; }
.cookie-actions button { appearance: none; border: none; border-radius: 999px; min-height: 46px; padding: 0 18px; cursor: pointer; font-weight: 700; font-size: 15px; }
.cookie-accept { background: var(--teal); color: var(--white); }
.cookie-decline { background: rgba(255,255,255,0.08); color: var(--white); border: 1px solid rgba(255,255,255,0.14); }
.logo-figure { max-width: 460px; margin-top: 18px; border-radius: 16px; overflow: hidden; border: 1px solid rgba(255,255,255,0.12); }
.notice { padding: 14px 18px; border-left: 4px solid var(--teal); background: rgba(47,163,189,0.08); border-radius: 10px; color: var(--navy); }
@media (max-width: 1040px) {
  .hero-grid, .cards, .article-list, .footer-grid, .two-col, .checklist-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .topbar-inner { align-items: flex-start; flex-direction: column; }
  .nav { gap: 10px 14px; }
  .hero { padding-top: 58px; }
  .container { width: min(var(--max), calc(100% - 28px)); }
  section { padding: 58px 0; }
  .cta { padding: 26px; }
  .cookie-banner { left: 12px; right: 12px; bottom: 12px; }
}


.term-grid { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap:22px; }
.term-card { background: var(--white); border:1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding:24px; }
.term-card h3 { margin:0 0 10px; font-size:22px; line-height:1.2; color: var(--navy); }
.term-card p { margin:0; color: var(--muted); }
.sketch-wrap { background: var(--white); border:1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding:18px; }
.sketch-wrap img { width:100%; height:auto; border-radius:14px; }
.content-grid { display:grid; grid-template-columns: minmax(0,1.2fr) minmax(260px,0.8fr); gap:24px; align-items:start; }
.sticky-box { position: sticky; top: 100px; }
.toc { background: var(--white); border:1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding:22px; }
.toc h3 { margin:0 0 12px; font-size:20px; color: var(--navy); }
.toc ul { margin:0; padding-left:18px; color: var(--muted); }
.toc li + li { margin-top:8px; }
.definition-list { display:grid; gap:18px; }
.note-link { margin-top: 12px; display:inline-block; font-weight:700; }
@media (max-width: 1040px) {
  .term-grid, .content-grid { grid-template-columns: 1fr; }
  .sticky-box { position: static; }
}


.pravus-banner { background: linear-gradient(135deg, #0f213c 0%, #16345d 100%); color: var(--white); border-radius: 28px; padding: 34px; display: grid; grid-template-columns: minmax(240px, 340px) minmax(0,1fr); gap: 30px; align-items: center; box-shadow: 0 18px 60px rgba(15,33,60,0.22); }
.pravus-banner-logo { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: 22px; padding: 22px; display: flex; align-items: center; justify-content: center; }
.pravus-banner-logo img { max-width: 100%; height: auto; display: block; }
.pravus-banner h2 { margin: 0 0 8px; font-size: clamp(28px, 4vw, 38px); line-height: 1.1; color: var(--white); }
.pravus-banner p { margin: 0 0 12px; color: rgba(255,255,255,0.88); font-size: 17px; }
.pravus-banner .mini { text-transform: uppercase; letter-spacing: 0.08em; color: #8dd7e4; font-weight: 700; font-size: 13px; margin-bottom: 10px; }
@media (max-width: 1040px) { .pravus-banner { grid-template-columns: 1fr; } }



.faq-accordion {
  display: grid;
  gap: 16px;
}

.faq-accordion details {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.faq-accordion summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 56px 22px 22px;
  position: relative;
  font-size: 21px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.35;
}

.faq-accordion summary::-webkit-details-marker {
  display: none;
}

.faq-accordion summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 28px;
  line-height: 1;
  color: var(--teal);
  font-weight: 500;
}

.faq-accordion details[open] summary::after {
  content: "−";
}

.faq-accordion .faq-answer {
  padding: 0 22px 22px 22px;
  color: var(--muted);
  font-size: 16px;
}

.faq-accordion .faq-answer p {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 760px) {
  .faq-accordion summary {
    font-size: 18px;
    padding-right: 48px;
  }
}



/* FAQ accordion fix */
.faq-accordion details > .faq-answer { display: none; }
.faq-accordion details[open] > .faq-answer { display: block; }
.faq-accordion details { margin: 0; }
.faq-accordion summary { display: block; }



.explainer-box {
  margin: 28px 0 34px;
  background: #f8fafc;
  border: 1px solid rgba(15,33,60,0.12);
  border-radius: 20px;
  padding: 22px 24px;
}
.explainer-box .label {
  display: inline-block;
  margin-bottom: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(47,163,189,0.10);
  color: #0f213c;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.explainer-box h2,
.explainer-box h3,
.explainer-box h4 {
  margin: 0 0 10px;
  color: #0f213c;
  font-size: 24px;
  line-height: 1.25;
}
.explainer-box p {
  margin: 0;
  color: #576574;
}



.nav .has-submenu { position: relative; }
.nav .has-submenu > a::after {
  content: "▾";
  font-size: 12px;
  margin-left: 6px;
}
.nav .submenu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 280px;
  padding: 10px;
  border-radius: 16px;
  background: #ffffff;
  border: 1px solid rgba(15,33,60,0.12);
  box-shadow: 0 18px 50px rgba(15,33,60,0.16);
  z-index: 80;
}
.nav .submenu a {
  display: block;
  color: #0f213c;
  padding: 10px 12px;
  border-radius: 10px;
  text-decoration: none;
  white-space: nowrap;
}
.nav .submenu a:hover {
  background: rgba(47,163,189,0.10);
  text-decoration: none;
}
.nav .has-submenu:hover .submenu,
.nav .has-submenu:focus-within .submenu {
  display: block;
}
@media (max-width: 760px) {
  .nav .has-submenu { width: 100%; }
  .nav .submenu {
    position: static;
    display: block;
    min-width: 100%;
    margin-top: 8px;
    background: rgba(255,255,255,0.04);
    border-color: rgba(255,255,255,0.14);
    box-shadow: none;
    padding: 6px 0 0;
  }
  .nav .submenu a {
    color: rgba(255,255,255,0.92);
    padding-left: 0;
  }
  .nav .submenu a:hover {
    background: transparent;
    text-decoration: underline;
  }
}