/* ─── Shared styles for Knowledge Center, News, Case Studies pages ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --accent: #E01020;
  --accent-rgb: 224, 16, 32;
  --accent-light: #FF3344;
  --bg: #0a0a0a;
  --surface: rgba(255,255,255,0.03);
  --border: rgba(255,255,255,0.07);
  --text: #ffffff;
  --text-2: rgba(255,255,255,0.55);
  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'Archivo', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}
[data-theme="light"] { --bg: #f4f2ee; --surface: rgba(0,0,0,0.04); --border: rgba(0,0,0,0.09); --text: #111111; --text-2: rgba(0,0,0,0.55); }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--font-body); line-height: 1.7; min-height: 100vh; }
::selection { background: var(--accent); color: #fff; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: linear-gradient(180deg, var(--accent), var(--accent-light)); border-radius: 3px; }
a { color: inherit; text-decoration: none; }

/* Navbar */
nav.kc-nav { position: fixed; top: 12px; left: 0; right: 0; z-index: 100; display: flex; justify-content: center; padding: 0 16px; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; background: rgba(10,10,10,0.78); border: 1px solid var(--border); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-radius: 100px; padding: 10px 24px; width: 100%; max-width: 980px; }
[data-theme="light"] .nav-inner { background: rgba(244,242,238,0.92); }
.nav-back { font-family: var(--font-body); font-size: 0.9rem; color: var(--text-2); transition: color 0.2s; }
.nav-back:hover { color: var(--text); }
.nav-brand-text { font-family: var(--font-head); font-weight: 700; font-size: 1.1rem; letter-spacing: -0.01em; }
.nav-brand-text .jit { color: var(--text); }
.nav-brand-text .pol { color: var(--accent); }
.nav-controls { display: flex; align-items: center; gap: 10px; }
.lang-toggle { display: flex; gap: 4px; background: var(--surface); border-radius: 100px; padding: 3px; }
.lang-toggle button { background: transparent; border: none; color: var(--text-2); font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 1px; padding: 4px 10px; border-radius: 100px; cursor: pointer; transition: all 0.2s; }
.lang-toggle button.active { background: var(--accent); color: #fff; }
.theme-toggle { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 100px; border: 1px solid transparent; background: transparent; color: var(--text-2); cursor: pointer; transition: all 0.2s; }
.theme-toggle:hover { color: var(--text); border-color: var(--border); background: var(--surface); }
.theme-toggle svg { width: 15px; height: 15px; }
.icon-sun { display: none; } .icon-moon { display: block; }
[data-theme="light"] .icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: none; }

main { max-width: 1240px; margin: 0 auto; padding: 130px 32px 80px; }

/* Breadcrumbs */
.breadcrumbs { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 1px; color: var(--text-2); margin-bottom: 32px; }
.breadcrumbs a { color: var(--text-2); transition: color 0.2s; }
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs span { margin: 0 6px; opacity: 0.5; }

/* Hero */
.kc-hero { text-align: center; margin-bottom: 56px; }
.kc-hero-tight { margin-bottom: 40px; }
.kc-eyebrow { display: inline-block; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 3px; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; padding: 4px 14px; border: 1px solid rgba(var(--accent-rgb), 0.35); border-radius: 100px; background: rgba(var(--accent-rgb), 0.06); }
.kc-h1 { font-family: var(--font-head); font-size: clamp(2.0rem, 4.5vw, 3.2rem); font-weight: 700; letter-spacing: -0.025em; line-height: 1.1; max-width: 900px; margin: 0 auto 20px; }
.kc-h1 .pol { color: var(--accent); }
.kc-lead { font-family: var(--font-body); font-size: 1.0rem; color: var(--text-2); max-width: 720px; margin: 0 auto; line-height: 1.6; }
.section-divider { width: 60px; height: 2px; background: linear-gradient(90deg, var(--accent), var(--accent-light)); border-radius: 2px; margin: 24px auto 0; }

/* Featured / card grids */
.featured-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 64px; }
.feat-card { display: flex; flex-direction: column; gap: 12px; padding: 28px 24px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border); transition: all 0.25s; cursor: pointer; }
.feat-card:hover { border-color: rgba(var(--accent-rgb), 0.4); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0,0,0,0.35); }
.feat-card.disabled { cursor: default; opacity: 0.6; }
.feat-card.disabled:hover { transform: none; box-shadow: none; border-color: var(--border); }
.feat-tag { display: inline-block; align-self: flex-start; font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 1.5px; text-transform: uppercase; color: var(--accent); padding: 3px 10px; border: 1px solid rgba(var(--accent-rgb), 0.35); border-radius: 100px; background: rgba(var(--accent-rgb), 0.06); }
.feat-title { font-family: var(--font-head); font-size: 1.05rem; font-weight: 600; line-height: 1.3; letter-spacing: -0.01em; }
.feat-desc { font-size: 0.85rem; color: var(--text-2); flex: 1; line-height: 1.6; }
.feat-link { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 1.5px; text-transform: uppercase; color: var(--accent); margin-top: 4px; }

/* Sector / category sections (industry-applications) */
.sector { margin-bottom: 36px; padding: 28px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border); }
.sector h2 { font-family: var(--font-head); font-size: 1.3rem; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 8px; display: flex; align-items: center; gap: 12px; }
.sector-icon { display: inline-flex; width: 32px; height: 32px; border-radius: 8px; background: rgba(var(--accent-rgb), 0.10); border: 1px solid rgba(var(--accent-rgb), 0.30); align-items: center; justify-content: center; color: var(--accent); }
.sector-icon svg { width: 16px; height: 16px; }
.sector-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 16px; }
.sector-block h3 { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 2px; text-transform: uppercase; color: var(--text-2); margin-bottom: 8px; }
.sector-block p, .sector-block ul { font-size: 0.9rem; color: var(--text); line-height: 1.6; }
.sector-block ul { padding-left: 20px; }
.sector-block li { margin-bottom: 4px; }
.sector-cta { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); display: flex; gap: 12px; flex-wrap: wrap; }

/* CTA */
.kc-cta { text-align: center; padding: 60px 32px; border-radius: 16px; border: 1px solid var(--border); background: linear-gradient(180deg, rgba(var(--accent-rgb),0.06), transparent); margin-top: 24px; }
.kc-cta h2 { font-family: var(--font-head); font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 600; line-height: 1.25; margin-bottom: 12px; max-width: 640px; margin-left: auto; margin-right: auto; }
.kc-cta p { color: var(--text-2); max-width: 540px; margin: 0 auto 28px; font-size: 0.92rem; }
.kc-cta-btns { display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

.btn-primary, .btn-outline { font-family: var(--font-body); font-size: 0.9rem; font-weight: 600; padding: 12px 24px; border-radius: 100px; cursor: pointer; transition: all 0.2s; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; border: 1px solid transparent; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.3); }
.btn-primary:hover { box-shadow: 0 0 28px rgba(var(--accent-rgb), 0.5); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: rgba(var(--accent-rgb), 0.55); color: var(--accent); }

/* Article-page elements */
.article-meta {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: center;
  margin: 28px auto 0;
}
.article-meta > span:not(.dot) {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 14px; border-radius: 100px;
  background: var(--surface); border: 1px solid var(--border);
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--text-2);
  transition: border-color 0.2s, color 0.2s;
}
.article-meta > span:not(.dot)::before {
  content: ''; display: inline-block; width: 12px; height: 12px;
  background-color: currentColor; flex-shrink: 0;
  -webkit-mask: var(--meta-icon) center / contain no-repeat;
          mask: var(--meta-icon) center / contain no-repeat;
}
.article-meta > span:nth-of-type(1) { --meta-icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'><circle cx='12' cy='12' r='10'/><polyline points='12 6 12 12 16 14'/></svg>"); }
.article-meta > span:nth-of-type(2) {
  --meta-icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'><path d='M20.59 13.41l-7.17 7.17a2 2 0 0 1-2.83 0L2 12V2h10l8.59 8.59a2 2 0 0 1 0 2.82z'/><circle cx='7' cy='7' r='1.5' fill='currentColor'/></svg>");
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.06);
  border-color: rgba(var(--accent-rgb), 0.30);
}
.article-meta > span:nth-of-type(3) { --meta-icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'><rect x='3' y='4' width='18' height='18' rx='2'/><line x1='16' y1='2' x2='16' y2='6'/><line x1='8' y1='2' x2='8' y2='6'/><line x1='3' y1='10' x2='21' y2='10'/></svg>"); }
.article-meta .dot { display: none; }
.toc { padding: 20px 24px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; margin-bottom: 40px; }
.toc h4 { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 2px; text-transform: uppercase; color: var(--text-2); margin-bottom: 10px; }
.toc ul { padding-left: 20px; }
.toc li { margin-bottom: 6px; font-size: 0.9rem; }
.toc a { color: var(--text); transition: color 0.2s; }
.toc a:hover { color: var(--accent); }
.article-body { max-width: 820px; margin: 0 auto; }
.article-body h2 { font-family: var(--font-head); font-size: clamp(1.3rem, 2.5vw, 1.7rem); font-weight: 600; letter-spacing: -0.015em; margin: 48px 0 14px; line-height: 1.25; scroll-margin-top: 100px; }
.article-body h3 { font-family: var(--font-head); font-size: 1.05rem; font-weight: 600; margin: 28px 0 10px; }
.article-body p, .article-body li { font-size: 0.95rem; color: var(--text); line-height: 1.75; }
.article-body p { margin-bottom: 14px; }
.article-body ul { padding-left: 22px; margin-bottom: 16px; }
.article-body li { margin-bottom: 6px; }
.article-body strong { font-weight: 600; }
.article-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.compare-table { width: 100%; border-collapse: collapse; margin: 20px 0 28px; font-size: 0.85rem; }
.compare-table th, .compare-table td { padding: 12px 14px; border: 1px solid var(--border); text-align: left; vertical-align: top; }
.compare-table th { background: var(--surface); font-family: var(--font-head); font-weight: 600; font-size: 0.85rem; }
.compare-table td { color: var(--text); }
.disclaimer { padding: 18px 22px; border-radius: 10px; background: rgba(var(--accent-rgb), 0.04); border: 1px solid rgba(var(--accent-rgb), 0.30); font-size: 0.85rem; color: var(--text-2); line-height: 1.6; margin: 32px 0; }
.disclaimer strong { color: var(--accent); }
.related-systems { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); }
.related-systems h3 { font-family: var(--font-head); font-size: 1.05rem; margin-bottom: 16px; }
.related-systems-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.related-systems-grid a { padding: 16px 18px; border-radius: 10px; background: var(--surface); border: 1px solid var(--border); transition: all 0.25s; display: block; }
.related-systems-grid a:hover { border-color: rgba(var(--accent-rgb), 0.4); transform: translateY(-1px); }
.related-systems-grid h4 { font-family: var(--font-head); font-size: 0.95rem; margin-bottom: 4px; }
.related-systems-grid p { font-size: 0.8rem; color: var(--text-2); line-height: 1.5; }

/* Filters — shared segmented-control pill (used by knowledge-center & news pages) */
.kc-controls { display: flex; flex-direction: column; gap: 18px; align-items: center; margin: 8px 0 40px; width: 100%; }
.kc-filters {
  display: inline-flex; flex-wrap: wrap; gap: 6px; justify-content: center;
  padding: 6px; max-width: 100%;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015));
  border: 1px solid var(--border); border-radius: 100px;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04), 0 1px 0 rgba(0,0,0,0.25);
}
[data-theme="light"] .kc-filters { background: linear-gradient(180deg, rgba(0,0,0,0.025), rgba(0,0,0,0.01)); box-shadow: inset 0 1px 0 rgba(255,255,255,0.6), 0 1px 0 rgba(0,0,0,0.04); }
.kc-filter-btn {
  font-family: var(--font-mono); font-size: 0.68rem; font-weight: 500;
  letter-spacing: 1.4px; text-transform: uppercase;
  padding: 9px 16px; border-radius: 100px;
  /* Inactive state: subtle but visibly clickable */
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  color: var(--text-2);
  cursor: pointer; white-space: nowrap;
  transition: color 0.2s ease, background 0.25s ease, border-color 0.2s ease, box-shadow 0.25s ease, transform 0.15s ease;
}
[data-theme="light"] .kc-filter-btn { background: rgba(0,0,0,0.04); border-color: rgba(0,0,0,0.10); }
.kc-filter-btn:hover { color: var(--text); background: rgba(var(--accent-rgb), 0.10); border-color: rgba(var(--accent-rgb), 0.35); transform: translateY(-1px); }
.kc-filter-btn:focus-visible { outline: none; box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.45); }
.kc-filter-btn:active { transform: translateY(0); }
.kc-filter-btn.active {
  background: linear-gradient(180deg, var(--accent-light), var(--accent));
  color: #fff; border-color: rgba(var(--accent-rgb), 0.55);
  box-shadow: 0 6px 18px rgba(var(--accent-rgb), 0.35), inset 0 1px 0 rgba(255,255,255,0.22);
}
/* Mobile: horizontal scroll instead of wrap (clearer affordance for many filters) */
@media (max-width: 640px) {
  .kc-controls { width: 100%; align-items: stretch; }
  .kc-filters {
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    padding: 5px 6px;
    gap: 5px;
    border-radius: 100px;
    /* Subtle gradient mask hint that there's more to scroll on the right */
    -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 14px, #000 calc(100% - 14px), transparent 100%);
            mask-image: linear-gradient(90deg, transparent 0, #000 14px, #000 calc(100% - 14px), transparent 100%);
  }
  .kc-filters::-webkit-scrollbar { display: none; }
  .kc-filters { -ms-overflow-style: none; scrollbar-width: none; }
  .kc-filter-btn { padding: 8px 14px; font-size: 0.62rem; letter-spacing: 1.1px; flex: 0 0 auto; scroll-snap-align: start; }
}

/* Editable / template labels */
.placeholder-label { display: inline-block; padding: 4px 10px; border-radius: 4px; background: rgba(255, 200, 0, 0.12); border: 1px dashed rgba(255, 200, 0, 0.5); color: rgba(255, 200, 0, 0.95); font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 1px; margin-bottom: 12px; }
[data-theme="light"] .placeholder-label { background: rgba(180, 130, 0, 0.10); border-color: rgba(180, 130, 0, 0.45); color: rgba(140, 100, 0, 1); }

footer { border-top: 1px solid var(--border); padding: 24px 32px; margin-top: 60px; text-align: center; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 1px; color: var(--text-2); }

/* Responsive */
@media (max-width: 980px)  { .featured-grid { grid-template-columns: repeat(2, 1fr); } .related-systems-grid { grid-template-columns: 1fr; } .sector-grid { grid-template-columns: 1fr; } }
@media (max-width: 640px)  { main { padding: 120px 20px 60px; } .featured-grid { grid-template-columns: 1fr; } .nav-inner { gap: 12px; padding: 8px 16px; } .nav-back { display: none; } .sector { padding: 22px 18px; } }

/* ─── Scroll-to-top button (injected by kc-shared.js) ─── */
#kcBackToTop {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(224,16,32,0.12);
  border: 1px solid rgba(224,16,32,0.35);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  z-index: 8000;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s, box-shadow 0.2s;
  pointer-events: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
#kcBackToTop svg { width: 16px; height: 16px; }
#kcBackToTop.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
#kcBackToTop:hover { background: rgba(224,16,32,0.22); box-shadow: 0 0 18px rgba(224,16,32,0.3); }