/* Color palette */
:root { --navy:#0a1a2b; --navy-600:#102a44; --gold:#c9a227; --warm-white:#f7f5f2; --ink:#1a1a1a; --muted:#6b7280; }
html{ box-sizing:border-box; scroll-behavior:smooth; }
*,*::before,*::after{ box-sizing:inherit; }
body{ margin:0; font-family: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif; color:var(--ink); background:var(--warm-white); line-height:1.6; }
.container{ width:min(1100px,92%); margin:0 auto; }
.visually-hidden{ position:absolute!important; height:1px;width:1px; overflow:hidden; clip:rect(1px,1px,1px,1px); white-space:nowrap; }
.skip-link{ position:absolute; top:-40px; left:0; background:var(--gold); color:#000; padding:8px 12px; z-index:1000; }
.skip-link:focus{ top:0; }
.site-header{ background:var(--navy); color:#fff; position:sticky; top:0; z-index:100; border-bottom:1px solid rgba(255,255,255,.08); }
.header-inner{ display:flex; align-items:center; justify-content:space-between; padding:12px 0; }
.brand-link{ display:inline-flex; align-items:baseline; gap:10px; color:#fff; text-decoration:none; }
.brand-mark{ display:inline-grid; place-items:center; width:28px;height:28px; background:var(--gold); color:#000; border-radius:3px; font-weight:700; font-size:14px; letter-spacing:.5px; }
.brand-title{ font-weight:700; font-size:18px; }
.est{ color:#cbd5e1; margin-left:12px; font-size:12px; }
.nav-toggle{ display:none; background:transparent; border:0; cursor:pointer; }
.nav-toggle-bar{ display:block; width:22px;height:2px; background:#fff; margin:4px 0; }
.nav-list{ list-style:none; margin:0; padding:0; display:flex; gap:18px; }
.nav-list a{ color:#fff; text-decoration:none; padding:6px 4px; border-radius:3px; }
.nav-list a:hover,.nav-list a:focus{ background:rgba(255,255,255,.08); }
.hero{ background:linear-gradient(180deg,var(--navy) 0%, var(--navy-600) 100%); color:#fff; padding:72px 0 64px; text-align:left; }
.credential{ color:#cbd5e1; font-size:14px; margin:0 0 8px; }
.hero-title{ font-size:clamp(28px,5vw,44px); line-height:1.2; margin:0 0 8px; }
.hero-subtitle{ font-size:clamp(18px,3.4vw,22px); margin:0 0 12px; color:#e2e8f0; }
.motto{ font-style:italic; color:#f1f5f9; margin:0 0 18px; }
.button{ display:inline-block; background:var(--gold); color:#000; text-decoration:none; padding:10px 14px; border-radius:4px; font-weight:600; }
.button.ghost{ background:transparent; color:#fff; border:1px solid rgba(255,255,255,.5); }
.section{ padding:52px 0; }
.section h2{ font-size:26px; margin:0 0 12px; color:var(--navy); }
.section p{ margin:0 0 10px; }
.section ul,.section ol{ padding-left:18px; }
.grid.two{ display:grid; grid-template-columns:1fr 1fr; gap:22px; }
@media (max-width:760px){ .grid.two{ grid-template-columns:1fr; } }
.timeline{ list-style:none; padding:0; margin:0; border-left:2px solid var(--navy); }
.timeline li{ padding:10px 0 10px 16px; position:relative; }
.timeline li::before{ content:""; position:absolute; left:-6px; top:16px; width:10px;height:10px; background:var(--gold); border-radius:50%; }
.timeline time{ font-weight:700; color:var(--navy); margin-right:8px; }
.site-footer{ background:var(--navy); color:#fff; padding:32px 0; margin-top:32px; }
.footer-inner{ display:grid; grid-template-columns:2fr 1fr; gap:20px; }
@media (max-width:760px){ .footer-inner{ grid-template-columns:1fr; } }
.links{ list-style:none; padding:0; margin:0; }
.links a{ color:#fff; text-decoration:none; }
.links a:hover{ text-decoration:underline; }
@media (max-width:880px){ .nav-toggle{ display:block; } .site-nav{ position:absolute; top:56px; right:0; background:var(--navy); width:100%; display:none; } .site-nav.open{ display:block; } .nav-list{ flex-direction:column; padding:10px; gap:0; } .nav-list a{ padding:10px; display:block; } }

/* Research Journal Styles */
.journal-header {
  background: var(--navy);
  color: #fff;
  padding: 40px 0;
  text-align: center;
}

.journal-title {
  font-size: 32px;
  margin: 0 0 16px;
}

.journal-subtitle {
  color: #cbd5e1;
  margin: 0 0 24px;
}

.hashtag-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hashtag {
  display: inline-block;
  background: #f3f4f6;
  color: var(--navy);
  padding: 6px 12px;
  border-radius: 16px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
  cursor: pointer;
}

.hashtag:hover {
  background: var(--gold);
  color: #000;
  transform: translateY(-1px);
}

.journal-content {
  padding: 40px 0;
}

.journal-entry {
  margin: 0 0 32px;
  padding: 24px;
  border-left: 3px solid var(--navy);
  background: #fff;
  border-radius: 0 8px 8px 0;
  transition: all 0.3s ease;
}

.journal-entry.highlighted {
  background: #fef3c7;
  border-left-color: var(--gold);
  transform: translateX(8px);
}

.entry-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 16px;
}

.entry-date {
  font-weight: 700;
  color: var(--navy);
  font-size: 18px;
}

.entry-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.entry-tag {
  background: #e5e7eb;
  color: var(--navy);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.entry-content h3 {
  color: var(--navy);
  margin: 0 0 12px;
  font-size: 20px;
}

.entry-content p {
  margin: 0 0 12px;
  line-height: 1.7;
}

.entry-content ul {
  margin: 12px 0;
  padding-left: 20px;
}

.entry-content li {
  margin: 0 0 6px;
}

@media (max-width: 768px) {
  .hashtag-nav {
    justify-content: flex-start;
    overflow-x: auto;
    padding: 0 20px;
  }
  
  .journal-entry {
    margin: 0 20px 24px;
    padding: 20px;
  }
}




/* Таблицы с данными: используются в Proof of Concept */
table.data{ width:100%; border-collapse:collapse; margin:18px 0; font-size:15px; }
table.data caption{ text-align:left; padding-bottom:8px; font-size:14px; opacity:.75; }
table.data th, table.data td{ text-align:left; padding:8px 10px; border-bottom:1px solid rgba(0,0,0,.12); }
table.data th{ font-weight:600; }
table.data td:not(:first-child), table.data th:not(:first-child){ text-align:right; font-variant-numeric:tabular-nums; }