/* DocumentEase — static site styles
   - Dark, neutral, engineering-first
   - No external fonts; system UI stack
*/

:root{
  --bg: #0b1220;
  --panel: #0f1a2e;
  --panel-2: #0c1526;
  --line: rgba(255,255,255,0.10);
  --fg: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.72);
  --muted-2: rgba(255,255,255,0.58);
  --accent: #49c6e5; /* cyan / muted blue accent */
  --accent-2: #2f6fed; /* restrained blue for links */
  --focus: #49c6e5;

  --radius: 14px;
  --radius-sm: 10px;
  --maxw: 1100px;
}

*{box-sizing:border-box}
html{color-scheme: dark;}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
  line-height:1.55;
  background:
    radial-gradient(1100px 500px at 20% 0%, rgba(47,111,237,0.18), transparent 60%),
    radial-gradient(900px 450px at 85% 10%, rgba(73,198,229,0.14), transparent 55%),
    linear-gradient(180deg, #0a1020 0%, var(--bg) 28%, #070c16 100%);
  color: var(--fg);
  position: relative;
}

/* Brand motif: trace lines background (hero areas only) */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 600px;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
}

body > * {
  position: relative;
  z-index: 1;
}

a{color: var(--accent); text-decoration: none;}
a:hover{text-decoration: underline;}
a:focus-visible, button:focus-visible{outline: 2px solid var(--focus); outline-offset: 3px;}

.skip-link{
  position:absolute;
  left:-9999px;
  top:0;
  background: var(--panel);
  color: var(--fg);
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius: var(--radius-sm);
}
.skip-link:focus{left:12px; top:12px; z-index:1000;}

.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7,12,22,0.80);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.container{
  width: min(var(--maxw), calc(100% - 32px));
  margin: 0 auto;
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding: 14px 0;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  white-space: nowrap;
}

.brand a{
  color: var(--fg);
  text-decoration:none;
  font-weight: 600;
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 28px;
  height: 28px;
  display: block;
}

.brand .tag{
  color: var(--muted-2);
  font-size: 0.92rem;
}

.nav{
  display:flex;
  align-items:center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content:flex-end;
}

.nav a{
  color: var(--muted);
  text-decoration:none;
  padding: 8px 10px;
  border-radius: 10px;
  transition: background-color 120ms ease, color 120ms ease;
}

.nav a[aria-current="page"]{
  color: var(--fg);
  background: rgba(255,255,255,0.06);
}

.nav a:hover{
  color: var(--fg);
  background: rgba(255,255,255,0.06);
  text-decoration:none;
}

main{padding: 34px 0 56px;}

.hero{
  padding: 28px 0 18px;
}

.hero-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: start;
}

@media (min-width: 860px){
  .hero-grid{grid-template-columns: 1.2fr 0.8fr; gap: 26px;}
}

.h-eyebrow{
  color: var(--muted-2);
  font-weight: 600;
  letter-spacing: 0.2px;
  text-transform: uppercase;
  font-size: 0.82rem;
}

h1{
  margin: 10px 0 10px;
  font-size: clamp(2.0rem, 2.4vw + 1.2rem, 3.0rem);
  letter-spacing: -0.2px;
  line-height: 1.15;
}

.lede{
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 70ch;
}

.hero-actions{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.04);
  color: var(--fg);
  text-decoration:none;
  transition: background-color 120ms ease, border-color 120ms ease, box-shadow 120ms ease;
  font-weight: 500;
}

.button:hover{
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.16);
  text-decoration:none;
}

.button.primary{
  background: linear-gradient(180deg, rgba(73,198,229,0.18), rgba(47,111,237,0.12));
  border-color: rgba(73,198,229,0.35);
  box-shadow: 0 1px 8px rgba(73,198,229,0.12);
}

.button.primary:hover{
  background: linear-gradient(180deg, rgba(73,198,229,0.24), rgba(47,111,237,0.16));
  border-color: rgba(73,198,229,0.45);
  box-shadow: 0 2px 12px rgba(73,198,229,0.18);
}

.panel{
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.03));
  border-radius: var(--radius);
  padding: 18px;
}

.panel h2, .panel h3{margin-top:0;}

.grid-2{
  display:grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 860px){
  .grid-2{grid-template-columns: 1fr 1fr; gap: 16px;}
}

.grid-3{
  display:grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 860px){
  .grid-3{grid-template-columns: 1fr 1fr 1fr; gap: 16px;}
}

h2{
  font-size: 1.32rem;
  margin: 0 0 10px;
}

h3{
  font-size: 1.08rem;
  margin: 0 0 10px;
}

p{margin: 10px 0; color: var(--muted);}

.kicker{
  color: var(--muted-2);
  font-size: 0.95rem;
}

.list{
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.list li{margin: 6px 0;}

.card{
  border: 1px solid rgba(255,255,255,0.08);
  background: linear-gradient(180deg, rgba(15,26,46,0.55), rgba(12,21,38,0.50));
  border-radius: var(--radius);
  padding: 18px;
}

.card .meta{
  color: var(--muted-2);
  font-size: 0.92rem;
  margin-top: -2px;
}

.card .cta{
  margin-top: 12px;
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Flagship product (SRA) prominence */
.card.flagship {
  border-color: rgba(73,198,229,0.18);
  background: linear-gradient(180deg, rgba(15,26,46,0.75), rgba(12,21,38,0.65));
  box-shadow: 0 2px 12px rgba(73,198,229,0.08);
}

.hr{
  height: 1px;
  background: var(--line);
  margin: 24px 0;
}

.diagram{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow:hidden;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
}

.diagram svg{display:block; width:100%; height:auto;}

.site-footer{
  border-top: 1px solid var(--line);
  padding: 18px 0 30px;
  color: var(--muted-2);
  font-size: 0.95rem;
}

.footer-inner{
  display:flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items:center;
  justify-content:space-between;
}

.small{
  font-size: 0.92rem;
  color: var(--muted-2);
}

.notice{
  border-left: 3px solid rgba(73,198,229,0.35);
  padding: 10px 12px;
  background: rgba(73,198,229,0.06);
  border-radius: 10px;
  color: var(--muted);
}

.code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.94rem;
  color: rgba(255,255,255,0.84);
}