/* ============================================================
   RYVASYS TECHNOLOGIES — design tokens
   Light body & nav, dark footer band (footer re-scopes these same
   custom properties back to the original dark palette below).
   ============================================================ */
:root{
  --bg:        #ffffff;
  --surface:   #f5f9fb;
  --surface-2: #eaf3f7;
  --line:      #dbe7ee;
  --line-soft: #eef5f8;
  --text:      #0a1420;
  --text-mute: #4c5f70;
  --text-dim:  #8398a8;
  --signal:    #046c87;   /* logo cyan, darkened — AA-safe on white, used for text/links */
  --signal-bright:#12e0ff; /* true logo cyan — decorative use only (glows, dots, gradients), fails text contrast on white */
  --signal-dim:#e3f6fa;
  --flag:      #c65313;   /* amber — CTA / alert accent, darkened for contrast on white */
  --flag-dim:  #fdf0e6;

  --display: 'Space Grotesk', 'Arial Narrow', sans-serif;
  --body:    'Inter', -apple-system, sans-serif;
  --mono:    'IBM Plex Mono', 'SF Mono', monospace;

  --max: 1180px;

  --signal-grad: linear-gradient(120deg, #046c87, #0aa8c9);
  --shadow-color: 4,20,32;
}

::-webkit-scrollbar{width:11px; height:11px;}
::-webkit-scrollbar-track{background:var(--surface);}
::-webkit-scrollbar-thumb{background:var(--line); border-radius:20px; border:3px solid var(--surface);}
::-webkit-scrollbar-thumb:hover{background:var(--signal);}
html{scrollbar-color:var(--line) var(--surface); scrollbar-width:thin;}

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.menu-open{overflow:hidden;}
[id]{scroll-margin-top:96px;}
body::before{
  content:'';
  position:fixed; inset:0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:64px 64px;
  opacity:.35;
  pointer-events:none;
  z-index:0;
}
a{color:inherit; text-decoration:none;}
img{max-width:100%; display:block;}
.wrap{max-width:var(--max); margin:0 auto; padding:0 32px; position:relative; z-index:1;}
section{position:relative; z-index:1;}

::selection{background:var(--signal); color:#ffffff;}
:focus-visible{outline:2px solid var(--signal); outline-offset:3px;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important;}
}

/* ---------- scroll reveal (progressive enhancement, see nav.js) ---------- */
[data-reveal]{opacity:0; transform:translateY(18px); transition:opacity .6s cubic-bezier(.2,.7,.3,1), transform .6s cubic-bezier(.2,.7,.3,1);}
[data-reveal].revealed{opacity:1; transform:none;}
@media (prefers-reduced-motion: reduce){
  [data-reveal]{opacity:1; transform:none;}
}

/* ---------- typography ---------- */
h1,h2,h3,h4{font-family:var(--display); font-weight:600; letter-spacing:-0.01em; color:var(--text);}
h1{font-size:clamp(2.6rem,5.5vw,4.6rem); line-height:1.02; letter-spacing:-0.02em;}
h2{font-size:clamp(1.8rem,3.2vw,2.6rem); line-height:1.1;}
h3{font-size:1.25rem; line-height:1.3;}
p{color:var(--text-mute);}
.eyebrow{
  font-family:var(--mono); font-size:.72rem; letter-spacing:.16em; text-transform:uppercase;
  color:var(--signal); display:flex; align-items:center; gap:10px; margin-bottom:18px;
}
.eyebrow::before{content:''; width:7px; height:7px; background:var(--signal-bright); border-radius:1px; box-shadow:0 0 8px var(--signal-bright);}
.mono{font-family:var(--mono);}

/* ---------- nav ---------- */
header.nav{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.7); backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .4s cubic-bezier(.4,0,.2,1), border-color .4s cubic-bezier(.4,0,.2,1), box-shadow .4s cubic-bezier(.4,0,.2,1);
}
header.nav.scrolled{
  background:rgba(255,255,255,.92); backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px -18px rgba(16,21,31,.12);
}
.nav-inner{max-width:var(--max); margin:0 auto; padding:18px 32px; display:flex; align-items:center; justify-content:space-between;}
.logo{display:flex; align-items:center; transition:filter .25s ease;}
.logo-img{height:36px; width:auto; display:block;}
.logo-img-dark{height:42px;}
.logo:hover{filter:drop-shadow(0 0 12px rgba(18,224,255,.5));}
footer .logo:hover{filter:drop-shadow(0 0 14px rgba(18,224,255,.45));}
nav.links{display:flex; gap:26px; font-size:.9rem; position:relative;}
nav.links a{color:var(--text-mute); transition:color .25s cubic-bezier(.4,0,.2,1); position:relative;}
nav.links a:hover, nav.links a.active{color:var(--text);}
nav.links a.active::after{content:''; position:absolute; left:0; right:0; bottom:-19px; height:2px; background:var(--signal); opacity:.35;}
.nav-indicator{
  position:absolute; left:0; bottom:-19px; height:2px; width:0; opacity:0;
  background:var(--signal); border-radius:2px;
  transition:left .35s cubic-bezier(.4,0,.2,1), width .35s cubic-bezier(.4,0,.2,1), opacity .2s ease;
  pointer-events:none;
}
@media (max-width:920px){ .nav-indicator{display:none;} }

/* ---------- services nav dropdown ---------- */
.nav-dropdown{position:relative; display:flex; align-items:center; gap:2px;}
.nav-drop-link{color:var(--text-mute); transition:color .25s cubic-bezier(.4,0,.2,1);}
.nav-drop-link:hover, .nav-drop-link.active{color:var(--text);}
.nav-drop-link.active::after{content:''; position:absolute; left:0; right:0; bottom:-19px; height:2px; background:var(--signal); opacity:.35;}
.nav-drop-toggle{
  display:flex; align-items:center; justify-content:center; width:18px; height:18px; padding:0;
  border:none; background:none; color:var(--text-dim); cursor:pointer; flex-shrink:0;
  transition:color .2s, transform .25s cubic-bezier(.4,0,.2,1);
}
.nav-drop-toggle svg{width:13px; height:13px;}
.nav-dropdown:hover .nav-drop-toggle, .nav-dropdown.open .nav-drop-toggle{color:var(--signal); transform:rotate(180deg);}
.nav-dropdown-menu{
  position:absolute; top:calc(100% + 18px); left:50%; transform:translateX(-50%) translateY(-6px);
  min-width:230px; background:var(--bg); border:1px solid var(--line); border-radius:10px;
  padding:8px; display:flex; flex-direction:column; gap:2px;
  box-shadow:0 20px 40px -18px rgba(4,20,32,.22);
  opacity:0; visibility:hidden; pointer-events:none;
  transition:opacity .2s ease, transform .2s cubic-bezier(.4,0,.2,1), visibility .2s;
  z-index:10;
}
/* Invisible hover-bridge: without this, the cursor exits .nav-dropdown's
   hit area while crossing the gap between the trigger and the flyout
   (the flyout is absolutely positioned, so it doesn't extend the
   parent's box), causing the menu to close before the mouse arrives. */
.nav-dropdown-menu::before{
  content:''; position:absolute; top:-18px; left:0; right:0; height:18px;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu{
  opacity:1; visibility:visible; pointer-events:auto; transform:translateX(-50%) translateY(0);
}
.nav-dropdown-menu a{
  display:block; padding:9px 12px; border-radius:6px; font-size:.86rem; color:var(--text-mute);
  transition:background .15s, color .15s;
}
.nav-dropdown-menu a:hover{background:var(--signal-dim); color:var(--signal);}
.nav-dropdown-menu a.nav-dropdown-all{
  margin-top:4px; padding-top:11px; border-top:1px solid var(--line); border-radius:0 0 6px 6px;
  font-family:var(--mono); font-size:.76rem; color:var(--signal);
}
.nav-cta{
  font-family:var(--mono); font-size:.8rem; padding:9px 18px; border:1px solid var(--signal);
  color:var(--signal); border-radius:5px; transition:all .25s cubic-bezier(.4,0,.2,1); white-space:nowrap;
}
.nav-cta:hover{background:var(--signal); color:#ffffff; transform:translateY(-1px); box-shadow:0 8px 22px -8px rgba(4,108,135,.4);}
.nav-toggle{
  display:none; align-items:center; justify-content:center;
  width:38px; height:38px; border:1px solid var(--line); border-radius:6px;
  background:none; cursor:pointer; flex-shrink:0; padding:0;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:''; display:block; width:18px; height:2px; background:var(--text); position:relative; transition:transform .2s, opacity .2s;
}
.nav-toggle span::before{position:absolute; top:-6px;}
.nav-toggle span::after{position:absolute; top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0; transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0; transform:rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px; font-family:var(--mono); font-size:.85rem;
  padding:13px 24px; border-radius:6px; transition:all .2s cubic-bezier(.4,0,.2,1); cursor:pointer; border:1px solid transparent;
  position:relative; overflow:hidden;
}
.btn-primary{background:var(--signal-grad); color:#ffffff; font-weight:600; box-shadow:0 10px 26px -10px rgba(4,108,135,.45);}
.btn-primary::before{
  content:''; position:absolute; inset:0; transform:translateX(-120%) skewX(-20deg);
  background:linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent);
  transition:transform .55s cubic-bezier(.4,0,.2,1);
}
.btn-primary:hover::before{transform:translateX(120%) skewX(-20deg);}
.btn-primary:hover{transform:translateY(-2px); box-shadow:0 16px 34px -10px rgba(4,108,135,.5), 0 0 26px -6px rgba(18,224,255,.5);}
.btn-primary:active{transform:translateY(0); box-shadow:0 8px 18px -10px rgba(4,108,135,.5);}
.btn-ghost{border-color:var(--line); color:var(--text); background:var(--bg);}
.btn-ghost:hover{border-color:var(--signal); color:var(--signal); transform:translateY(-2px); box-shadow:0 12px 24px -14px rgba(4,108,135,.35);}
.btn-ghost:active{transform:translateY(0);}

/* ---------- ambient depth (glows) ---------- */
.hero, .page-hero{position:relative; overflow:hidden;}
.hero::before, .page-hero::before{
  content:''; position:absolute; z-index:0; pointer-events:none;
  top:-220px; left:50%; width:900px; height:560px; transform:translateX(-38%);
  background:
    radial-gradient(closest-side, rgba(4,108,135,.1), transparent 70%),
    radial-gradient(closest-side at 70% 60%, rgba(198,83,19,.07), transparent 65%);
  filter:blur(10px);
  animation:driftGlow 16s ease-in-out infinite;
}
.page-hero::before{width:700px; height:420px; top:-180px;}
.hero > *, .page-hero > *{position:relative; z-index:1;}
@keyframes driftGlow{
  0%, 100%{transform:translateX(-38%) translateY(0);}
  50%{transform:translateX(-34%) translateY(18px);}
}
@media (prefers-reduced-motion: reduce){
  .hero::before, .page-hero::before{animation:none;}
}

/* gradient emphasis text */
.grad-text, .hero h1 .cy{
  background:linear-gradient(120deg, var(--signal), var(--signal-bright));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hstat b, .case-impact b{
  background:linear-gradient(120deg, var(--signal-bright), var(--flag));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}

/* ---------- hero ---------- */
.hero{padding:120px 0 90px; position:relative;}
.hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:60px; align-items:center;}
.hero h1{margin-bottom:22px;}
.hero p.lead{font-size:1.15rem; max-width:520px; margin-bottom:36px;}
.hero-actions{display:flex; gap:14px; margin-bottom:56px;}
.hero-stats{display:flex; gap:36px; padding-top:28px; border-top:1px solid var(--line);}
.hstat{display:flex; flex-direction:column; gap:6px; padding-right:36px; border-right:1px solid var(--line-soft);}
.hstat:last-child{padding-right:0; border-right:none;}
.hstat b{font-family:var(--mono); font-size:1.6rem; line-height:1.1; color:var(--signal); display:block; white-space:nowrap;}
.hstat span{font-size:.74rem; color:var(--text-dim); text-transform:uppercase; letter-spacing:.06em; line-height:1.4; max-width:12ch;}

/* signature: signal path visual */
.signal-scope{
  background:linear-gradient(165deg, var(--surface-2), var(--surface));
  border:1px solid var(--line); border-radius:12px; padding:26px;
  font-family:var(--mono); font-size:.78rem; position:relative;
  box-shadow:0 30px 60px -30px rgba(16,21,31,.18), 0 0 0 1px rgba(4,108,135,.04);
  transition:box-shadow .3s ease, border-color .3s ease;
}
.signal-scope:hover{border-color:rgba(18,224,255,.4); box-shadow:0 34px 68px -28px rgba(16,21,31,.22), 0 0 0 1px rgba(18,224,255,.12), 0 0 44px -10px rgba(18,224,255,.35);}
.scope-head{display:flex; justify-content:space-between; color:var(--text-dim); margin-bottom:18px; font-size:.7rem; letter-spacing:.08em;}
.scope-dot{width:8px; height:8px; border-radius:50%; background:var(--flag); display:inline-block; margin-right:6px; animation:blink 1.6s infinite;}
@keyframes blink{50%{opacity:.25;}}
.path{display:flex; flex-direction:column; gap:0;}
.path-node{display:flex; align-items:center; gap:14px; padding:13px 0; position:relative;}
.path-node .dot{width:10px; height:10px; border-radius:50%; background:var(--surface-2); border:2px solid var(--line); flex-shrink:0; z-index:1;}
.path-node.on .dot{border-color:var(--signal-bright); background:var(--signal-bright); box-shadow:0 0 10px var(--signal-bright);}
.path-node:not(:last-child)::before{
  content:''; position:absolute; left:4px; top:24px; bottom:-13px; width:1px; background:var(--line);
}
.path-node .lbl{color:var(--text-mute);}
.path-node.on .lbl{color:var(--text);}
.path-node .tag{margin-left:auto; color:var(--text-dim); font-size:.68rem;}
.path-node.on .tag{color:var(--flag);}

/* ---------- section shell ---------- */
.section{padding:96px 0;}
.section.alt{background:var(--surface); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
.section-head{max-width:640px; margin-bottom:56px;}
.section-head p{font-size:1.05rem;}

/* ---------- fit: industries + technology ---------- */
.fit-heading{font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color:var(--text-dim); margin-bottom:24px;}
.fit-heading:not(:first-child){margin-top:56px;}

.fit-industries{display:grid; grid-template-columns:repeat(6,1fr); gap:20px;}
.fit-tile{display:flex; flex-direction:column; align-items:center; text-align:center; gap:14px;}
.fit-icon{
  width:80px; height:80px; border-radius:20px; flex-shrink:0;
  display:flex; align-items:center; justify-content:center; overflow:hidden;
  transition:transform .25s cubic-bezier(.4,0,.2,1), border-color .25s, background .25s, color .25s;
}
.fit-icon img{width:100%; height:100%; object-fit:cover; display:block;}
.fit-icon.placeholder{
  background:var(--surface); border:1.5px dashed var(--line); color:var(--text-dim);
}
.fit-icon.placeholder svg{width:28px; height:28px;}
.fit-tile:hover .fit-icon.placeholder{
  border-color:var(--signal); border-style:solid; color:var(--signal); background:var(--signal-dim);
  transform:translateY(-3px); box-shadow:0 0 0 1px rgba(18,224,255,.25), 0 10px 22px -14px rgba(18,224,255,.5);
}
.fit-tile span{font-size:.86rem; color:var(--text); font-weight:500; line-height:1.35;}

.fit-tech{display:flex; flex-wrap:wrap; gap:56px;}
.tech-group{min-width:240px;}
.tech-label{display:block; font-family:var(--mono); font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; color:var(--text-dim); margin-bottom:12px;}
.tech-badges{display:flex; flex-wrap:wrap; gap:10px;}
.badge{
  font-family:var(--mono); font-size:.8rem; padding:7px 14px; border:1px solid var(--line);
  border-radius:20px; color:var(--text-mute); background:var(--bg); transition:all .2s;
}
.badge:hover{border-color:var(--signal); color:var(--signal); background:var(--signal-dim);}

@media (max-width:920px){
  .fit-industries{grid-template-columns:repeat(3,1fr); row-gap:32px;}
}
@media (max-width:560px){
  .fit-industries{grid-template-columns:repeat(2,1fr); row-gap:28px;}
  .fit-icon{width:64px; height:64px; border-radius:16px;}
}

/* ---------- case study library ---------- */
.cs-jump{display:flex; flex-wrap:wrap; gap:10px; margin-bottom:8px;}
.cs-jump a{font-family:var(--mono); font-size:.78rem; padding:7px 14px; border:1px solid var(--line); border-radius:20px; color:var(--text-mute); transition:all .2s;}
.cs-jump a:hover{border-color:var(--signal); color:var(--signal); background:var(--signal-dim);}

.cs-list{display:flex; flex-direction:column; gap:28px;}
.case-block{
  background:var(--bg); border:1px solid var(--line); border-radius:16px; padding:34px 36px;
  box-shadow:0 24px 48px -30px rgba(16,21,31,.14); transition:border-color .25s, box-shadow .25s, transform .25s cubic-bezier(.4,0,.2,1);
}
.section.alt .case-block{background:var(--surface-2);}
.case-block:hover{border-color:var(--signal); box-shadow:0 34px 60px -28px rgba(4,20,32,.24), 0 0 30px -14px rgba(18,224,255,.4); transform:translateY(-3px);}

.case-head{display:flex; align-items:flex-start; justify-content:space-between; gap:24px; flex-wrap:wrap; margin-bottom:14px;}
.case-title{display:flex; align-items:baseline; gap:14px;}
.case-index{font-family:var(--mono); font-size:.78rem; color:var(--text-dim);}
.case-head h3{font-size:1.3rem;}
.case-context{font-family:var(--mono); font-size:.74rem; color:var(--text-dim); white-space:nowrap;}

.case-summary{
  font-size:1.03rem; color:var(--text); line-height:1.65; max-width:760px; margin-bottom:24px;
  padding-left:18px; border-left:3px solid var(--signal);
}

.case-layers{display:flex; flex-wrap:wrap; gap:8px; margin-bottom:26px;}
.case-layers .badge{background:var(--surface); font-size:.74rem; padding:5px 12px;}
.section.alt .case-layers .badge{background:var(--bg);}

.split-kicker{display:flex; align-items:center; gap:8px; margin:22px 0 -2px; font-family:var(--mono); font-size:.68rem; letter-spacing:.12em; text-transform:uppercase; color:var(--text-dim);}
.split-kicker::before{content:''; width:14px; height:1px; background:var(--line);}
.case-split{display:grid; grid-template-columns:1fr 1fr; gap:18px; padding-top:26px; border-top:1px solid var(--line);}
.case-panel{border-radius:12px; padding:20px 22px 22px; border:1px solid var(--line); transition:border-color .2s;}
.case-panel.case-ai{background:var(--signal-dim); border-color:rgba(4,108,135,.3);}
.case-panel.case-human{background:var(--surface);}
.section.alt .case-panel.case-human{background:var(--bg);}
.case-block:hover .case-panel.case-ai{border-color:var(--signal);}

.case-panel h4{
  display:flex; align-items:center; gap:8px; font-family:var(--mono); font-size:.7rem; letter-spacing:.07em;
  text-transform:uppercase; margin-bottom:14px; font-weight:600;
}
.case-panel h4 .h4-icon{
  width:22px; height:22px; border-radius:6px; display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.case-panel h4 .h4-icon svg{width:13px; height:13px;}
.case-ai h4{color:var(--signal);}
.case-ai h4 .h4-icon{background:rgba(4,108,135,.16); color:var(--signal);}
.case-human h4{color:var(--text-dim);}
.case-human h4 .h4-icon{background:rgba(16,21,31,.06); color:var(--text-dim);}

.case-panel ul{list-style:none; display:flex; flex-direction:column; gap:10px;}
.case-panel li{font-size:.86rem; color:var(--text-mute); padding-left:24px; position:relative; line-height:1.45;}
.case-panel li::before{
  content:'✓'; position:absolute; left:0; top:1px; width:16px; height:16px; border-radius:50%;
  display:flex; align-items:center; justify-content:center; font-size:.6rem; font-weight:700;
}
.case-ai li::before{background:rgba(4,108,135,.18); color:var(--signal);}
.case-human li::before{background:rgba(16,21,31,.07); color:var(--text-dim);}

.case-impact{
  display:flex; flex-wrap:wrap; align-items:baseline; gap:14px 36px; margin-top:26px; padding-top:22px; border-top:1px solid var(--line);
}
.case-impact .case-stat{display:flex; align-items:baseline; gap:12px;}
.case-impact b{font-family:var(--mono); font-size:1.6rem; color:var(--signal);}
.case-impact span{font-size:.82rem; color:var(--text-dim); max-width:220px;}

/* ---------- mini case cards (service pages: proven-in-the-field) ---------- */
.mini-case{
  background:var(--bg); border:1px solid var(--line); border-radius:14px; padding:26px 28px;
  transition:border-color .25s, box-shadow .25s, transform .25s cubic-bezier(.4,0,.2,1);
}
.section.alt .mini-case{background:var(--surface-2);}
.mini-case:hover{border-color:var(--signal); box-shadow:0 20px 34px -22px rgba(4,20,32,.24), 0 0 24px -14px rgba(18,224,255,.35); transform:translateY(-3px);}
.mini-case .case-index{display:block; margin-bottom:6px;}
.mini-case h4{font-size:1.05rem; margin-bottom:8px; font-family:var(--display);}
.mini-case .case-context{display:block; font-size:.72rem; margin-bottom:12px; white-space:normal;}
.mini-case p{font-size:.88rem; line-height:1.55; margin-bottom:16px;}
.mini-case .case-impact{margin-top:16px; padding-top:16px;}
.mini-case .case-impact b{font-size:1.3rem;}
.case-link{
  display:inline-flex; align-items:center; gap:6px; font-family:var(--mono); font-size:.78rem;
  color:var(--signal); margin-top:14px; transition:gap .2s;
}
.case-link:hover{gap:10px;}

/* ---------- service overview cards (services.html index) ---------- */
.svc-card{
  background:var(--surface); border-radius:14px; padding:32px 30px; position:relative;
  border:1px solid var(--line); transition:transform .25s cubic-bezier(.4,0,.2,1), box-shadow .25s, border-color .25s;
}
.svc-card:hover{transform:translateY(-4px); border-color:var(--signal); box-shadow:0 24px 40px -26px rgba(4,20,32,.28), 0 0 26px -14px rgba(18,224,255,.4);}
.svc-card h3{margin:14px 0 10px;}
.svc-card p{font-size:.92rem; margin-bottom:0;}
.card-link, .svc-card .case-link{margin-top:18px;}

@media (max-width:768px){
  .case-split{grid-template-columns:1fr; gap:20px;}
  .case-block{padding:26px 22px;}
  .case-context{white-space:normal;}
}

/* ---------- cards / grid ---------- */
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:12px; overflow:hidden; box-shadow:0 24px 48px -28px rgba(16,21,31,.12);}
.grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:12px; overflow:hidden; box-shadow:0 24px 48px -28px rgba(16,21,31,.12);}
.card{background:var(--surface); padding:34px 30px; position:relative; transition:background .25s, transform .25s cubic-bezier(.4,0,.2,1), box-shadow .25s;}
.card::before{
  content:''; position:absolute; top:0; left:0; right:0; height:2px; transform:scaleX(0); transform-origin:left;
  background:linear-gradient(90deg, var(--signal-bright), var(--flag)); transition:transform .25s ease;
}
.card:hover::before{transform:scaleX(1);}
.card:hover{background:var(--surface-2); transform:translateY(-4px); box-shadow:0 20px 34px -22px rgba(4,20,32,.28), 0 0 24px -14px rgba(18,224,255,.4); z-index:2;}
.section.alt .card{background:var(--bg);}
.section.alt .card:hover{background:var(--surface);}
.tagline{
  font-family:var(--mono); font-size:.7rem; color:var(--signal); letter-spacing:.1em; margin-bottom:16px;
  display:inline-flex; align-items:center; gap:10px;
}
.tagline svg{
  width:32px; height:32px; flex-shrink:0; padding:8px; box-sizing:border-box;
  background:var(--signal-dim); border-radius:9px; transition:transform .25s cubic-bezier(.4,0,.2,1), background .25s;
}
.card:hover .tagline svg{transform:scale(1.08) rotate(-4deg); background:var(--signal); color:#ffffff;}
.grid-2.bare{background:none; border:none; box-shadow:none; gap:60px;}
.grid-2.bare .card{padding:0;}
.card h3{margin-bottom:12px;}
.card p{font-size:.94rem;}
.card ul{list-style:none; margin-top:16px; display:flex; flex-direction:column; gap:8px;}
.card ul li{font-size:.85rem; color:var(--text-mute); padding-left:16px; position:relative;}
.card ul li::before{content:'▸'; position:absolute; left:0; color:var(--signal);}

/* ---------- process strip ---------- */
.flow{display:flex; align-items:stretch; border:1px solid var(--line); border-radius:12px; overflow:hidden; background:var(--surface); box-shadow:0 24px 48px -28px rgba(16,21,31,.12);}
.flow-step{flex:1; padding:26px 22px; border-right:1px solid var(--line); position:relative; transition:background .2s;}
.flow-step::before{
  content:''; position:absolute; top:0; left:0; right:0; height:2px; transform:scaleX(0); transform-origin:left;
  background:linear-gradient(90deg, var(--flag), var(--signal-bright)); transition:transform .3s ease;
}
.flow-step:hover::before{transform:scaleX(1);}
.flow-step:hover{background:var(--surface-2);}
.flow-step:last-child{border-right:none;}
.flow-step .fk{font-family:var(--mono); font-size:.68rem; color:var(--flag); letter-spacing:.1em; margin-bottom:10px; display:block;}
.flow-step h4{font-size:.98rem; margin-bottom:6px; font-family:var(--display);}
.flow-step p{font-size:.82rem; margin:0;}

/* ---------- comparison ---------- */
.compare{border:1px solid var(--line); border-radius:12px; overflow:hidden; box-shadow:0 24px 48px -28px rgba(16,21,31,.12);}
.compare table{width:100%; border-collapse:collapse; font-size:.92rem;}
.compare th, .compare td{padding:16px 22px; text-align:left; border-bottom:1px solid var(--line);}
.compare th{font-family:var(--mono); font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; color:var(--text-dim); background:var(--surface);}
.compare tr:last-child td{border-bottom:none;}
.compare td.us{color:var(--signal); font-weight:500;}
.compare td.them{color:var(--text-dim);}
.compare tbody tr:nth-child(odd) td{background:rgba(16,21,31,.015);}
.compare tbody tr{transition:background .15s;}
.compare tbody tr:hover td{background:rgba(4,108,135,.06);}

/* ---------- quote / cta band ---------- */
.band{
  padding:80px 0; text-align:center; border-top:1px solid var(--line); position:relative; overflow:hidden;
  background:
    radial-gradient(600px 260px at 50% 0%, rgba(4,108,135,.06), transparent 70%),
    linear-gradient(180deg, var(--surface), var(--bg));
}
.band h2{max-width:680px; margin:0 auto 30px;}
.band-actions{display:flex; gap:14px; justify-content:center;}

/* ---------- footer (dark band, re-scopes palette regardless of page theme) ---------- */
footer{
  --bg:        #04162e;
  --surface:   #0a2340;
  --surface-2: #102c4d;
  --line:      #1c3a5c;
  --line-soft: #16304f;
  --text:      #eef4fa;
  --text-mute: #93a8bf;
  --text-dim:  #5b7089;
  --signal:    #12e0ff;
  --signal-dim:#0a3a4a;
  --flag:      #ff7a45;
  --flag-dim:  #4a2a18;

  color:var(--text);
  border-top:1px solid var(--line); padding:56px 0 34px; position:relative;
  background:linear-gradient(180deg, var(--bg), var(--surface) 400%);
}
footer::before{
  content:''; position:absolute; top:-1px; left:0; right:0; height:1px;
  background:linear-gradient(90deg, transparent, var(--signal), transparent);
  opacity:.5;
}
.foot-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; margin-bottom:48px;}
.foot-col h5{font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color:var(--text-dim); margin-bottom:16px;}
.foot-col a, .foot-col p{display:block; font-size:.88rem; color:var(--text-mute); margin-bottom:10px;}
.foot-col a:hover{color:var(--signal);}
.foot-bottom{display:flex; justify-content:space-between; align-items:center; gap:20px; padding-top:28px; border-top:1px solid var(--line); font-size:.78rem; color:var(--text-dim); font-family:var(--mono);}
.foot-legal a{color:var(--text-dim); transition:color .2s;}
.foot-legal a:hover{color:var(--signal);}
.placeholder-flag{
  background:var(--flag-dim); border:1px solid var(--flag); color:var(--flag);
  font-family:var(--mono); font-size:.72rem; padding:3px 10px; border-radius:4px; margin-left:10px;
}

/* ---------- page hero (inner pages) ---------- */
.page-hero{padding:76px 0 60px; border-bottom:1px solid var(--line);}
.page-hero h1{font-size:clamp(2.2rem,4.2vw,3.2rem);}
.page-hero p.lead{max-width:600px; font-size:1.05rem; margin-top:18px;}

/* ---------- responsive ---------- */

/* tablet */
@media (max-width:920px){
  .wrap{padding:0 24px;}
  .hero{padding:64px 0 56px;}
  .hero-grid{grid-template-columns:1fr; gap:44px;}
  .hero p.lead{max-width:none;}
  .hero-stats{flex-wrap:wrap; row-gap:18px;}
  .hstat{padding-right:24px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .grid-2{grid-template-columns:1fr;}
  .section{padding:64px 0;}

  .nav-inner{padding:16px 24px; flex-wrap:wrap; row-gap:10px;}
  .nav-toggle{display:flex;}
  .nav-cta{padding:8px 14px; font-size:.76rem;}
  nav.links{
    display:flex; flex-direction:column; gap:0;
    position:fixed; top:0; right:0; height:100vh; width:min(78vw,320px);
    background:var(--surface); border-left:1px solid var(--line);
    padding:88px 28px 28px; z-index:60; overflow-y:auto;
    transform:translateX(100%); transition:transform .25s ease;
  }
  nav.links.open{transform:translateX(0);}
  nav.links > a{padding:16px 0; border-bottom:1px solid var(--line-soft); font-size:1.05rem;}
  nav.links a.active::after{display:none;}
  nav.links a.active{color:var(--signal);}

  .nav-dropdown{flex-direction:row; flex-wrap:wrap; border-bottom:1px solid var(--line-soft); padding:6px 0;}
  .nav-drop-link{padding:10px 0; font-size:1.05rem; flex:1;}
  .nav-drop-toggle{width:44px; height:44px;}
  .nav-drop-toggle svg{width:16px; height:16px;}
  .nav-dropdown-menu{
    position:static; transform:none; opacity:1; visibility:visible; pointer-events:auto;
    min-width:0; width:100%; box-shadow:none; border:none; padding:0; border-radius:0;
    max-height:0; overflow:hidden; transition:max-height .3s cubic-bezier(.4,0,.2,1);
  }
  .nav-dropdown-menu::before{content:none;}
  .nav-dropdown.open .nav-dropdown-menu{max-height:340px;}
  .nav-dropdown-menu a{padding:12px 0 12px 14px; font-size:.94rem; border-radius:0;}
  .nav-dropdown-menu a.nav-dropdown-all{border-top:1px solid var(--line-soft); border-radius:0;}
  .nav-scrim{
    display:none; position:fixed; inset:0; background:rgba(4,6,10,.6); z-index:55;
  }
  .nav-scrim.open{display:block;}

  .foot-grid{grid-template-columns:1fr 1fr; row-gap:32px;}
  .flow{flex-direction:column;}
  .flow-step{border-right:none; border-bottom:1px solid var(--line);}

  .compare{overflow-x:auto;}
  .compare table{min-width:560px;}
}

/* mobile */
@media (max-width:560px){
  .wrap{padding:0 18px;}
  h1{font-size:clamp(2.1rem,9vw,2.8rem);}
  .hero{padding:48px 0 44px;}
  .hero-actions{flex-direction:column; align-items:stretch;}
  .hero-actions .btn{width:100%; justify-content:center;}
  .hero-stats{gap:24px;}
  .grid-3{grid-template-columns:1fr;}
  .section-head{margin-bottom:36px;}
  .section{padding:48px 0;}

  .logo-img{height:30px;}
  .logo-img-dark{height:34px;}

  .band{padding:56px 0;}
  .band-actions{flex-direction:column; align-items:stretch;}
  .band-actions .btn{width:100%; justify-content:center;}

  .foot-grid{grid-template-columns:1fr; row-gap:28px;}
  .foot-bottom{flex-direction:column; gap:8px; align-items:flex-start;}

  .page-hero{padding:52px 0 40px;}
}

/* ---------- Interactive motion layer ---------- */

/* scroll reveal */
.reveal{opacity:0; transform:translateY(22px); transition:opacity .6s cubic-bezier(.4,0,.2,1), transform .6s cubic-bezier(.4,0,.2,1);}
.reveal.in{opacity:1; transform:translateY(0);}

/* card cursor glow + tilt */
.tilt-card{
  --mx:50%; --my:50%; --rx:0deg; --ry:0deg;
  transform:perspective(900px) rotateX(var(--rx)) rotateY(var(--ry)) translateY(0);
  transition:transform .35s cubic-bezier(.4,0,.2,1), background .25s, box-shadow .25s;
  will-change:transform;
}
.tilt-card::after{
  content:''; position:absolute; inset:0; border-radius:inherit; pointer-events:none; opacity:0;
  background:radial-gradient(220px circle at var(--mx) var(--my), rgba(18,224,255,.16), transparent 70%);
  transition:opacity .3s ease;
}
.tilt-card:hover::after{opacity:1;}
.card.tilt-card:hover{transform:perspective(900px) rotateX(var(--rx)) rotateY(var(--ry)) translateY(-4px);}
.fit-tile.tilt-card{position:relative;}
.fit-tile.tilt-card:hover .fit-icon{transform:scale(1.06);}

/* hero trace pulse */
@keyframes trace-pulse{
  0%{ stroke-dashoffset:var(--len, 300); opacity:0; }
  8%{ opacity:1; }
  85%{ opacity:1; }
  100%{ stroke-dashoffset:var(--len-end, -40); opacity:0; }
}

/* sequential build-trace highlight pulse */
.path-node{transition:background .3s ease;}
.path-node.pulse-on{background:linear-gradient(90deg, var(--signal-dim), transparent);}
.path-node.pulse-on .dot{border-color:var(--signal-bright); background:var(--signal-bright); box-shadow:0 0 12px var(--signal-bright);}
.path-node.pulse-on .lbl{color:var(--text);}

/* animated stat counters */
.hstat b{display:inline-block; font-variant-numeric:tabular-nums;}

@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1 !important; transform:none !important; transition:none !important;}
  .tilt-card{transform:none !important; transition:none !important;}
}