/* ---------------------------------------------------
   RuView — tokens
--------------------------------------------------- */
:root{
  --ink:        #080B10;
  --surface:    #0E141C;
  --surface-2:  #131B25;
  --line:       #223040;
  --line-soft:  #1A2430;
  --text:       #E7EDF3;
  --text-muted: #8CA0B3;
  --text-dim:   #5C6E80;
  --amber:      #FFB020;
  --amber-dim:  #7A5A1C;
  --cyan:       #4FD8E8;
  --danger:     #E8794F;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --wrap: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

h1,h2,h3{ font-family:var(--font-display); font-weight:600; margin:0; color:var(--text); }
p{ margin:0; }
a{ color:inherit; text-decoration:none; }
ul,ol{ margin:0; padding:0; list-style:none; }
.mono{ font-family:var(--font-mono); }

.wrap{ max-width:var(--wrap); margin:0 auto; padding:0 28px; }

:focus-visible{ outline:2px solid var(--amber); outline-offset:3px; }

.skip-link{
  position:absolute; left:16px; top:-60px;
  background:var(--amber); color:#1A1200; font-weight:600;
  padding:10px 18px; border-radius:2px; z-index:3000;
  transition:top 0.15s ease;
}
.skip-link:focus{ top:16px; }

/* faint scanline texture over the whole page, very low opacity */
.scanline-overlay{
  position:fixed; inset:0; pointer-events:none; z-index:2000;
  background:repeating-linear-gradient(
    to bottom, rgba(255,255,255,0.012) 0px, rgba(255,255,255,0.012) 1px,
    transparent 1px, transparent 3px
  );
  mix-blend-mode:overlay;
}

/* ---------------------------------------------------
   Buttons
--------------------------------------------------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:12px 22px;
  font-family:var(--font-body); font-weight:600; font-size:0.95rem;
  border-radius:2px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space:nowrap;
}
.btn-primary{ background:var(--amber); color:#1A1200; }
.btn-primary:hover{ background:#ffc450; }
.btn-outline{ border-color:var(--line); color:var(--text); }
.btn-outline:hover{ border-color:var(--cyan); color:var(--cyan); }
.btn-ghost{ color:var(--text-muted); border:1px solid var(--line-soft); padding:9px 16px; font-size:0.88rem; }
.btn-ghost:hover{ color:var(--text); border-color:var(--line); }
.ext{ font-size:0.85em; opacity:0.7; }

/* ---------------------------------------------------
   Header
--------------------------------------------------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(8,11,16,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{
  display:flex; align-items:center; gap:28px;
  height:68px;
}
.logo{
  display:flex; align-items:center; gap:9px;
  font-family:var(--font-display); font-weight:700; font-size:1.15rem;
  color:var(--text); letter-spacing:-0.01em;
  margin-right:auto;
}
.logo-mark{ color:var(--amber); display:inline-flex; }
.main-nav{ display:flex; gap:26px; }
.main-nav a{ color:var(--text-muted); font-size:0.93rem; font-weight:500; transition:color 0.15s ease; }
.main-nav a:hover{ color:var(--text); }
.header-cta{ display:inline-flex; }
.nav-toggle{
  display:none; flex-direction:column; gap:5px;
  background:none; border:none; cursor:pointer; padding:6px;
}
.nav-toggle span{ width:20px; height:2px; background:var(--text); display:block; }
.mobile-nav{
  display:none; flex-direction:column;
  border-top:1px solid var(--line-soft);
  padding:10px 28px 18px;
}
.mobile-nav a{ padding:12px 0; color:var(--text-muted); border-bottom:1px solid var(--line-soft); font-size:0.95rem; }
.mobile-nav.open{ display:flex; }

@media (max-width:860px){
  .main-nav, .header-cta{ display:none; }
  .nav-toggle{ display:flex; }
}

/* ---------------------------------------------------
   Hero
--------------------------------------------------- */
.hero{
  padding:76px 0 88px;
  border-bottom:1px solid var(--line-soft);
  background:
    radial-gradient(700px 420px at 82% -10%, rgba(79,216,232,0.08), transparent 60%),
    radial-gradient(500px 320px at 5% 110%, rgba(255,176,32,0.06), transparent 60%);
}
.hero-inner{
  display:grid; grid-template-columns:1.05fr 0.95fr; gap:56px; align-items:center;
}
.kicker{
  color:var(--amber); font-size:0.82rem; letter-spacing:0.02em;
  margin-bottom:18px; display:block;
}
h1{
  font-size:clamp(2.5rem, 4.6vw, 3.6rem);
  line-height:1.06; letter-spacing:-0.02em;
  margin-bottom:22px;
}
.accent-text{ color:var(--cyan); }
.hero-sub{
  color:var(--text-muted); font-size:1.08rem; max-width:46ch; margin-bottom:32px;
}
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:22px; }
.hero-fine{ color:var(--text-dim); font-size:0.82rem; }

/* scope / radar visual frame, reused for demo iframe */
.scope-frame{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  aspect-ratio:4/3.1;
  overflow:hidden;
}
.scope-frame canvas{ display:block; width:100%; height:100%; }
.corner{
  position:absolute; width:16px; height:16px;
  border-color:var(--amber); border-style:solid; border-width:0;
  opacity:0.85; pointer-events:none;
}
.corner.tl{ top:-1px; left:-1px; border-top-width:2px; border-left-width:2px; }
.corner.tr{ top:-1px; right:-1px; border-top-width:2px; border-right-width:2px; }
.corner.bl{ bottom:-1px; left:-1px; border-bottom-width:2px; border-left-width:2px; }
.corner.br{ bottom:-1px; right:-1px; border-bottom-width:2px; border-right-width:2px; }

.scope-readout{
  position:absolute; left:14px; right:14px; bottom:12px;
  display:flex; justify-content:space-between;
  font-size:0.72rem; letter-spacing:0.03em; color:var(--cyan);
  text-shadow:0 0 8px rgba(79,216,232,0.5);
}

@media (max-width:900px){
  .hero-inner{ grid-template-columns:1fr; }
  .hero{ padding:52px 0 60px; }
}

/* ---------------------------------------------------
   Sections
--------------------------------------------------- */
.section{ padding:88px 0; border-bottom:1px solid var(--line-soft); }
.section:last-of-type{ border-bottom:none; }
.section-head{ max-width:640px; margin-bottom:48px; }
.section-head h2{ font-size:clamp(1.7rem, 3vw, 2.3rem); letter-spacing:-0.01em; margin-bottom:14px; }
.section-lede{ color:var(--text-muted); font-size:1.02rem; }

@media (max-width:640px){
  .section{ padding:60px 0; }
}

/* ---------------------------------------------------
   Live demo panel
--------------------------------------------------- */
.demo-frame{
  position:relative;
  border:1px solid var(--line);
  background:var(--surface);
}
.demo-frame-bar{
  display:flex; align-items:center; gap:9px;
  padding:11px 16px;
  border-bottom:1px solid var(--line-soft);
  color:var(--text-dim); font-size:0.78rem;
}
.demo-frame-bar .dot{
  width:7px; height:7px; border-radius:50%; background:var(--amber);
  box-shadow:0 0 6px rgba(255,176,32,0.7);
}
.iframe-wrap{ position:relative; width:100%; aspect-ratio:16/10; background:#000; }
.iframe-wrap iframe{ position:absolute; inset:0; width:100%; height:100%; border:0; }
.demo-fallback{ margin-top:16px; color:var(--text-dim); font-size:0.88rem; }
.demo-fallback a{ color:var(--cyan); }
.demo-fallback a:hover{ text-decoration:underline; }

@media (max-width:640px){
  .iframe-wrap{ aspect-ratio:4/5; }
}

/* ---------------------------------------------------
   Stat strip
--------------------------------------------------- */
.stats-section{ padding:44px 0; }
.stat-strip{
  display:grid; grid-template-columns:repeat(6,1fr);
  border-top:1px solid var(--line-soft); border-left:1px solid var(--line-soft);
}
.stat-strip li{
  border-right:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft);
  padding:22px 18px;
  display:flex; flex-direction:column; gap:8px;
}
.stat-num{ color:var(--amber); font-size:1.35rem; }
.stat-label{ color:var(--text-dim); font-size:0.8rem; line-height:1.35; }

@media (max-width:900px){
  .stat-strip{ grid-template-columns:repeat(3,1fr); }
}
@media (max-width:520px){
  .stat-strip{ grid-template-columns:repeat(2,1fr); }
}

/* ---------------------------------------------------
   Pipeline (how it works)
--------------------------------------------------- */
.pipeline{
  display:flex; flex-direction:column;
  border-left:1px solid var(--line);
  margin-left:6px;
}
.pipeline li{
  display:flex; gap:26px;
  padding:26px 0 26px 30px;
  position:relative;
}
.pipeline li::before{
  content:""; position:absolute; left:-5px; top:32px;
  width:9px; height:9px; background:var(--ink); border:2px solid var(--amber); border-radius:50%;
}
.pipeline-index{ color:var(--text-dim); font-size:0.85rem; padding-top:2px; min-width:24px; }
.pipeline h3{ font-size:1.15rem; margin-bottom:8px; }
.pipeline p{ color:var(--text-muted); max-width:56ch; }

/* ---------------------------------------------------
   Learn / glossary
--------------------------------------------------- */
.learn-grid{
  display:grid; grid-template-columns:1.3fr 1fr; gap:52px; align-items:start;
}
.learn-copy p{ color:var(--text-muted); margin-bottom:18px; max-width:60ch; }
.learn-copy p:last-child{ margin-bottom:0; }
.learn-copy strong{ color:var(--text); font-weight:600; }

.glossary{
  border-top:1px solid var(--line-soft);
}
.glossary-item{
  padding:18px 0; border-bottom:1px solid var(--line-soft);
}
.glossary-item dt{
  font-family:var(--font-mono); color:var(--amber); font-size:0.85rem; margin-bottom:8px;
}
.glossary-item dd{ margin:0; color:var(--text-muted); font-size:0.92rem; }

@media (max-width:860px){
  .learn-grid{ grid-template-columns:1fr; gap:36px; }
}

/* ---------------------------------------------------
   Panel grid (capabilities)
--------------------------------------------------- */
.panel-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
  background:var(--line-soft);
  border:1px solid var(--line-soft);
}
.panel{
  position:relative;
  background:var(--surface);
  padding:28px 26px;
}
.panel .corner{ border-color:var(--line); opacity:1; }
.panel:hover .corner{ border-color:var(--amber); }
.panel h3{ font-size:1.05rem; margin-bottom:10px; }
.panel p{ color:var(--text-muted); font-size:0.94rem; }

@media (max-width:900px){ .panel-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .panel-grid{ grid-template-columns:1fr; } }

/* ---------------------------------------------------
   Use cases
--------------------------------------------------- */
.case-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:32px; }
.case{ border-top:2px solid var(--amber); padding-top:18px; }
.case h3{ font-size:1.08rem; margin-bottom:10px; }
.case p{ color:var(--text-muted); font-size:0.95rem; }

@media (max-width:760px){ .case-grid{ grid-template-columns:1fr; gap:28px; } }

/* ---------------------------------------------------
   Caution panel
--------------------------------------------------- */
.caution-panel{
  border-left:2px solid var(--danger);
  background:var(--surface);
  padding:28px 32px;
}
.caution-panel h3{ font-size:1.1rem; margin-bottom:16px; }
.caution-panel ul{ display:flex; flex-direction:column; gap:11px; }
.caution-panel li{ color:var(--text-muted); font-size:0.94rem; padding-left:18px; position:relative; }
.caution-panel li::before{ content:"—"; position:absolute; left:0; color:var(--danger); }

/* ---------------------------------------------------
   FAQ
--------------------------------------------------- */
.faq-list{ border-top:1px solid var(--line-soft); }
.faq-item{ border-bottom:1px solid var(--line-soft); }
.faq-item summary{
  cursor:pointer; list-style:none;
  display:flex; align-items:center; justify-content:space-between; gap:20px;
  padding:20px 4px;
  font-family:var(--font-display); font-weight:600; font-size:1.02rem;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-icon{ position:relative; width:14px; height:14px; flex:none; }
.faq-icon::before,.faq-icon::after{
  content:""; position:absolute; background:var(--amber);
  top:50%; left:50%; transform:translate(-50%,-50%);
}
.faq-icon::before{ width:14px; height:2px; }
.faq-icon::after{ width:2px; height:14px; transition:transform 0.15s ease; }
.faq-item[open] .faq-icon::after{ transform:translate(-50%,-50%) rotate(90deg) scaleX(0); }
.faq-item p{ color:var(--text-muted); padding:0 4px 22px; max-width:64ch; font-size:0.96rem; }

/* ---------------------------------------------------
   Footer
--------------------------------------------------- */
.site-footer{ padding:56px 0 0; }
.footer-inner{
  display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap;
  padding-bottom:44px;
}
.footer-brand p{ color:var(--text-dim); font-size:0.88rem; margin-top:12px; max-width:32ch; }
.footer-links{ display:flex; gap:56px; }
.footer-links h4{ font-family:var(--font-mono); font-weight:400; color:var(--text-dim); font-size:0.78rem; margin-bottom:14px; }
.footer-links a{ display:block; color:var(--text-muted); font-size:0.92rem; padding:5px 0; }
.footer-links a:hover{ color:var(--text); }
.footer-bottom{
  border-top:1px solid var(--line-soft);
  padding:20px 28px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px;
  color:var(--text-dim); font-size:0.78rem;
}

@media (max-width:560px){
  .footer-inner{ flex-direction:column; gap:28px; }
}