/* ============================================================
   Awdah AI — Design System
   Calm, instrument-grade wayfinding. Hairlines, one signal accent.
   ============================================================ */
:root{
  --navy:#0A2540;
  --navy-deep:#061826;
  --teal:#0F6E84;
  --teal-deep:#0A4C5C;
  --mint:#19C39A;
  --mint-soft:#8FE3CE;
  --paper:#FFFFFF;
  --paper-2:#F5F8FA;
  --ice:#EAF2F5;
  --ink:#0D1F2B;
  --muted:#55676F;
  --faint:#8496A0;
  --line:#E1E9ED;
  --line-2:#CBD8DF;
  --amber:#A9720C;
  --radius:18px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(6,24,38,.04), 0 8px 22px -14px rgba(6,24,38,.28);
  --shadow-md:0 18px 44px -24px rgba(6,24,38,.45);
  --shadow-lg:0 50px 90px -50px rgba(6,24,38,.7);
  --ease-out:cubic-bezier(.23,1,.32,1);
  --ease-in-out:cubic-bezier(.77,0,.175,1);
  --ease-drawer:cubic-bezier(.32,.72,0,1);
  --maxw:1180px;
  --gutter:clamp(20px,4vw,32px);
  --section-y:clamp(64px,9vw,104px);
  --font-head:"Source Serif 4", Georgia, "Times New Roman", serif;
  --font-body:"Inter", -apple-system, "Segoe UI", system-ui, sans-serif;
  --font-mono:ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

*{box-sizing:border-box; margin:0; padding:0}
html{
  scroll-behavior:smooth;
  scroll-padding-top:96px;
  -webkit-text-size-adjust:100%;
}
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,video{max-width:100%; display:block}
a{color:inherit; text-decoration:none}
ul,ol{list-style:none}
button{font:inherit; color:inherit; background:none; border:none; cursor:pointer}
::selection{background:rgba(25,195,154,.24)}

a:focus-visible,
button:focus-visible{
  outline:2px solid var(--teal);
  outline-offset:3px;
  border-radius:6px;
}

.wrap{max-width:var(--maxw); margin:0 auto; padding:0 var(--gutter)}
section{position:relative}
.section-pad{padding:var(--section-y) 0}
.section-tint{
  background:var(--paper-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

/* ---------- Typography ---------- */
h1,h2,h3,h4{
  color:var(--navy);
  font-weight:600;
  letter-spacing:-.02em;
  text-wrap:balance;
}
h1,h2{font-family:var(--font-head); font-optical-sizing:auto}
h2{font-size:clamp(1.85rem,3.2vw,2.6rem); line-height:1.08; letter-spacing:-.028em}
h3{font-size:1rem; line-height:1.35}
p{text-wrap:pretty}

.label{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--teal-deep);
  margin-bottom:18px;
}
.label-dot{
  width:5px; height:5px;
  border-radius:50%;
  background:var(--mint);
  flex:0 0 auto;
}

.sec-head{max-width:740px; margin-bottom:clamp(32px,4vw,52px)}
.sec-head h2{margin-bottom:16px}
.sec-lead{
  font-size:clamp(1rem,1.25vw,1.075rem);
  line-height:1.62;
  color:var(--muted);
  max-width:64ch;
}
.counter{
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:14.5px;
  letter-spacing:-.01em;
  padding:13px 24px;
  border-radius:12px;
  border:1px solid transparent;
  cursor:pointer;
  transition:
    transform 140ms var(--ease-out),
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    box-shadow 200ms var(--ease-out);
}
.btn-primary{
  color:#fff;
  background:linear-gradient(180deg,#11768D,#0A4C5C);
  border-color:#0A4C5C;
  box-shadow:0 10px 24px -14px rgba(10,76,92,.9), inset 0 1px 0 rgba(255,255,255,.16);
}
.btn-ghost{
  color:var(--navy);
  background:#fff;
  border-color:var(--line-2);
}
.btn-light{
  color:var(--teal-deep);
  background:#fff;
  border-color:#fff;
}
.btn:active{transform:scale(.97)}

/* ---------- Header ---------- */
header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:1000;
  background:rgba(255,255,255,.78);
  backdrop-filter:blur(14px) saturate(150%);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid transparent;
  transition:
    border-color 220ms ease,
    box-shadow 220ms ease,
    background-color 220ms ease;
}
header.scrolled{
  border-color:var(--line);
  background:rgba(255,255,255,.92);
  box-shadow:0 6px 24px -18px rgba(6,24,38,.55);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
}
.brand{display:flex; align-items:center; gap:7px; flex:0 0 auto}
.brand img{width:56px; height:auto; border-radius:6px}
.brand-ai{
  font-family:var(--font-head);
  font-weight:700;
  font-size:20px;
  color:var(--navy);
  letter-spacing:-.01em;
}

nav.primary-nav ul{display:flex; align-items:center; gap:30px}
nav.primary-nav a{
  position:relative;
  font-size:14px;
  font-weight:500;
  color:var(--muted);
  transition:color 160ms ease;
}
nav.primary-nav a::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-7px;
  height:1.5px;
  background:currentColor;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform 220ms var(--ease-out);
}
.nav-cta{display:flex; align-items:center; gap:10px}
.nav-cta .btn{
  padding:0 18px;
  height:40px;
  font-size:13.5px;
  border-radius:10px;
}
.burger{
  display:none;
  flex-direction:column;
  gap:5px;
  padding:9px 6px;
}
.burger span{
  display:block;
  width:22px; height:2px;
  border-radius:2px;
  background:var(--navy);
  transition:transform 200ms var(--ease-out), opacity 160ms ease;
}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(hover:hover) and (pointer:fine){
  nav.primary-nav a:hover{color:var(--navy)}
  nav.primary-nav a:hover::after{transform:scaleX(1)}
  .btn-primary:hover{
    transform:translateY(-1px);
    box-shadow:0 16px 30px -16px rgba(10,76,92,.95), inset 0 1px 0 rgba(255,255,255,.16);
  }
  .btn-ghost:hover{border-color:var(--teal); color:var(--teal-deep)}
  .btn-light:hover{transform:translateY(-1px); box-shadow:var(--shadow-md)}
}
nav.primary-nav a:focus-visible::after{transform:scaleX(1)}

@media(max-width:900px){
  nav.primary-nav{
    position:fixed;
    top:76px; left:0; right:0;
    display:block;
    padding:14px var(--gutter) 22px;
    background:rgba(255,255,255,.97);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
    opacity:0;
    transform:translateY(-6px);
    visibility:hidden;
    pointer-events:none;
    transition:
      opacity 140ms var(--ease-out),
      transform 140ms var(--ease-out),
      visibility 0s linear 140ms;
  }
  nav.primary-nav.open{
    opacity:1;
    transform:none;
    visibility:visible;
    pointer-events:auto;
    transition:
      opacity 220ms var(--ease-out),
      transform 220ms var(--ease-out),
      visibility 0s;
  }
  nav.primary-nav ul{flex-direction:column; align-items:flex-start; gap:4px}
  nav.primary-nav li{width:100%}
  nav.primary-nav a{display:block; padding:11px 0; font-size:15.5px}
  nav.primary-nav a::after{bottom:8px; right:auto; width:22px}
  .nav-cta .btn-ghost{display:none}
  .burger{display:flex}
}

/* ---------- Hero ---------- */
.hero{
  padding:clamp(120px,14vw,152px) 0 clamp(60px,8vw,88px);
  background:
    radial-gradient(58% 52% at 12% 0%, rgba(15,110,132,.10), transparent 62%),
    radial-gradient(44% 44% at 94% 6%, rgba(25,195,154,.11), transparent 62%),
    var(--paper);
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(to right, rgba(10,37,64,.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10,37,64,.045) 1px, transparent 1px);
  background-size:88px 88px;
  -webkit-mask-image:radial-gradient(68% 62% at 50% 18%, #000, transparent 78%);
  mask-image:radial-gradient(68% 62% at 50% 18%, #000, transparent 78%);
  pointer-events:none;
}
.hero .wrap{position:relative; z-index:1}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:clamp(40px,5vw,72px);
  align-items:center;
}
.hero h1{
  font-size:clamp(2.5rem,5.3vw,4rem);
  line-height:1.02;
  letter-spacing:-.035em;
  font-weight:600;
  margin-top:4px;
}
.hero h1 em{
  font-style:italic;
  color:var(--teal-deep);
}
.hero .lead{
  font-size:clamp(1rem,1.3vw,1.15rem);
  line-height:1.62;
  color:var(--muted);
  max-width:54ch;
  margin-top:22px;
}
.hero-cta{display:flex; flex-wrap:wrap; gap:12px; margin-top:30px}
.hero-cta .btn-primary{padding:13px 22px}

.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  margin-top:clamp(38px,5vw,52px);
  padding-top:24px;
  border-top:1px solid var(--line);
}
.hero-stats dt{
  font-family:var(--font-head);
  font-size:clamp(1.5rem,2.4vw,1.85rem);
  font-weight:600;
  line-height:1.1;
  letter-spacing:-.02em;
  color:var(--navy);
  font-variant-numeric:tabular-nums;
}
.hero-stats dd{
  margin-top:4px;
  font-size:12.5px;
  line-height:1.45;
  color:var(--muted);
  max-width:22ch;
}

/* ---------- Device / AR visual ---------- */
.hero-visual{
  position:relative;
  display:flex;
  justify-content:center;
  padding:10px 0;
}
.device{
  position:relative;
  width:min(296px,100%);
  aspect-ratio:9/18;
  padding:9px;
  border-radius:46px;
  background:linear-gradient(160deg,#17323E,#050F16 62%);
  box-shadow:
    0 50px 90px -50px rgba(6,24,38,.75),
    0 0 0 1px rgba(6,24,38,.5),
    inset 0 0 0 1px rgba(255,255,255,.08);
}
.device-screen{
  position:relative;
  height:100%;
  border-radius:38px;
  overflow:hidden;
  background:radial-gradient(120% 80% at 50% 0%, #133642 0%, #06141C 58%, #041017 100%);
}
.device-screen::before{
  content:"";
  position:absolute;
  top:10px; left:50%;
  transform:translateX(-50%);
  width:64px; height:15px;
  border-radius:99px;
  background:#040C11;
  z-index:4;
}
.device-screen::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(to right, rgba(143,227,206,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(143,227,206,.06) 1px, transparent 1px);
  background-size:34px 34px;
  pointer-events:none;
}

.hud{
  position:absolute;
  top:34px; left:14px; right:14px;
  z-index:3;
  display:flex;
  flex-direction:column;
  gap:3px;
  padding:12px 14px;
  border-radius:14px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.hud-kicker{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:9.5px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mint-soft);
}
.live-dot{
  width:5px; height:5px;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 0 3px rgba(25,195,154,.16);
}
.hud strong{
  font-size:14px;
  font-weight:600;
  letter-spacing:-.01em;
  color:#fff;
}
.hud-meta{font-size:10px; color:#A6C4CD; letter-spacing:.01em}

.ar-trail{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  z-index:2;
}
.ar-path,
.ar-path-shadow{
  fill:none;
  stroke-linecap:round;
  stroke-dasharray:600;
  stroke-dashoffset:600;
}
.ar-path-shadow{
  stroke:rgba(25,195,154,.18);
  stroke-width:15;
  animation:drawTrail 1.9s var(--ease-out) 250ms forwards;
}
.ar-path{
  stroke:var(--mint);
  stroke-width:4;
  filter:drop-shadow(0 0 6px rgba(25,195,154,.45));
  animation:drawTrail 1.9s var(--ease-out) 250ms forwards;
}
@keyframes drawTrail{
  to{stroke-dashoffset:0}
}

.ar-chev path{
  fill:none;
  stroke:var(--mint);
  stroke-width:5;
  stroke-linecap:round;
  stroke-linejoin:round;
  opacity:.18;
  animation:chevPulse 3.4s var(--ease-in-out) infinite;
  animation-delay:calc(900ms + var(--i) * 300ms);
}
@keyframes chevPulse{
  0%,72%,100%{opacity:.16}
  26%{opacity:.95}
}

.origin-ring{
  fill:none;
  stroke:#FFD166;
  stroke-width:2.5;
  opacity:.85;
  transform-box:fill-box;
  transform-origin:center;
  animation:originPing 2.8s var(--ease-out) 1.4s infinite;
}
.origin-core{fill:#FFD166}
.origin-label{
  fill:#FFD166;
  font-family:var(--font-body);
  font-size:10px;
  font-weight:700;
  letter-spacing:.22em;
}
@keyframes originPing{
  0%{transform:scale(1); opacity:.85}
  55%{transform:scale(1.45); opacity:.15}
  100%{transform:scale(1.45); opacity:0}
}

.screen-foot{
  position:absolute;
  left:14px; right:14px; bottom:22px;
  z-index:3;
}
.screen-progress{
  height:4px;
  border-radius:99px;
  background:rgba(255,255,255,.14);
  overflow:hidden;
}
.screen-progress i{
  display:block;
  height:100%;
  width:100%;
  border-radius:99px;
  background:linear-gradient(90deg,#19C39A,#5BE0C0);
  transform:scaleX(.64);
  transform-origin:left center;
  animation:fillBar 1.6s var(--ease-out) 500ms both;
}
@keyframes fillBar{
  from{transform:scaleX(0)}
  to{transform:scaleX(.64)}
}
.screen-legend{
  display:flex;
  justify-content:space-between;
  gap:10px;
  margin-top:8px;
  font-size:9.5px;
  letter-spacing:.05em;
  color:#9FBFC8;
  font-variant-numeric:tabular-nums;
}

.readout{
  position:absolute;
  z-index:5;
  display:flex;
  flex-direction:column;
  gap:1px;
  padding:9px 14px;
  border-radius:12px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--line);
  box-shadow:var(--shadow-md);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  animation:readoutIn 620ms var(--ease-out) both;
}
.readout-k{
  font-size:9.5px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--faint);
}
.readout b{
  font-size:13px;
  font-weight:700;
  color:var(--navy);
  font-variant-numeric:tabular-nums;
}
.readout-a{top:15%; left:-4%; animation-delay:1s}
.readout-b{bottom:13%; right:-4%; animation-delay:1.15s}
@keyframes readoutIn{
  from{opacity:0; transform:translateY(6px)}
  to{opacity:1; transform:none}
}

@media(max-width:1080px){
  .readout{display:none}
}

/* ---------- Trust strip ---------- */
.trust{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--paper-2);
}
.trust ul{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:14px 32px;
  padding:20px 0;
}
.trust li{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:12.5px;
  font-weight:500;
  color:var(--muted);
}
.trust li::before{
  content:"";
  flex:0 0 5px;
  width:5px; height:5px;
  border-radius:50%;
  background:var(--mint);
}

/* ---------- Gallery ---------- */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:16px;
}
.shot{
  aspect-ratio:4/3;
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--ice);
  box-shadow:var(--shadow-sm);
}
html.js .shot.reveal-pending{transform:none}
.shot img{
  width:100%;
  height:100%;
  object-fit:cover;
  clip-path:inset(0);
  transition:
    clip-path 700ms var(--ease-out),
    transform 520ms var(--ease-out);
}
html.js .shot.reveal-pending img{clip-path:inset(0 0 100% 0)}
@media(hover:hover) and (pointer:fine){
  .shot:hover img{transform:scale(1.035)}
}

/* ---------- Dark sections ---------- */
.section-dark{
  background:var(--navy-deep);
  overflow:hidden;
}
.section-dark::before{
  content:"";
  position:absolute;
  top:-260px; right:-220px;
  width:640px; height:640px;
  background:radial-gradient(circle, rgba(25,195,154,.16), transparent 70%);
  pointer-events:none;
}
.section-dark .wrap{position:relative; z-index:1}
.section-dark h2{color:#fff}
.section-dark .label{color:var(--mint-soft)}
.section-dark .sec-lead{color:#A9BDCC}

.video-frame{
  max-width:900px;
  margin:0 auto;
  border-radius:18px;
  overflow:hidden;
  background:#000;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 40px 90px -40px rgba(0,0,0,.85);
}
.video-frame video{width:100%; background:#000}
.video-caption{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px 24px;
  max-width:900px;
  margin:18px auto 0;
  font-size:13px;
  color:#9FB4C4;
}

/* ---------- Steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(20px,3vw,32px);
}
.step{
  border-top:1px solid var(--line-2);
  padding-top:18px;
}
.step .n{
  display:block;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.14em;
  color:var(--teal-deep);
  margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}
.step h3{
  font-family:var(--font-body);
  font-size:16px;
  font-weight:700;
  color:var(--navy);
  margin-bottom:6px;
  letter-spacing:-.012em;
}
.step p{font-size:14px; color:var(--muted); line-height:1.6}
@media(max-width:900px){
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:560px){
  .steps{grid-template-columns:1fr; gap:24px}
}

/* ---------- Download ---------- */
.download-panel{
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:clamp(32px,4vw,56px);
  align-items:center;
  padding:clamp(24px,4vw,48px);
  border:1px solid var(--line);
  border-radius:24px;
  background:linear-gradient(160deg, #F7FAFB, #fff 62%);
  box-shadow:var(--shadow-sm);
}
.download-panel h2{
  font-size:clamp(1.6rem,2.8vw,2.15rem);
  margin-bottom:12px;
}
.download-panel .sec-lead{margin-bottom:22px; max-width:52ch}
.download-points{display:grid; gap:10px; margin-bottom:28px}
.download-points li{
  display:flex;
  gap:11px;
  align-items:flex-start;
  font-size:14px;
  color:var(--muted);
}
.download-points .tick{
  flex:0 0 18px;
  width:18px; height:18px;
  margin-top:3px;
  border-radius:50%;
  background:var(--ice);
  color:var(--teal-deep);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:10px;
  font-weight:800;
}
.download-actions{display:flex; flex-wrap:wrap; align-items:center; gap:16px}
.download-btn{padding:14px 26px}
.download-btn > span{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  line-height:1.2;
}
.dl-meta{
  font-size:10.5px;
  font-weight:500;
  letter-spacing:.05em;
  opacity:.8;
  margin-top:2px;
}
.download-note{
  font-size:12.5px;
  line-height:1.55;
  color:var(--faint);
  max-width:230px;
}

.qr-card{
  padding:26px 22px;
  text-align:center;
  border:1px solid var(--line);
  border-radius:20px;
  background:#fff;
  box-shadow:var(--shadow-md);
}
.qr-frame{
  display:inline-block;
  line-height:0;
  padding:12px;
  margin-bottom:14px;
  border:1px solid var(--line);
  border-radius:14px;
  background:#fff;
}
.qr-frame svg{width:180px; height:180px; display:block}
.qr-card h3{
  font-family:var(--font-head);
  font-size:18px;
  font-weight:600;
  color:var(--navy);
  margin-bottom:6px;
}
.qr-card p{font-size:13px; color:var(--muted); margin-bottom:10px}
.qr-card strong{color:var(--navy); font-weight:600}
.qr-url{
  display:block;
  font-family:var(--font-mono);
  font-size:10.5px;
  color:var(--faint);
  word-break:break-all;
}
.qr-fallback{font-size:13px; color:var(--muted)}

@media(max-width:880px){
  .download-panel{grid-template-columns:1fr; gap:32px; padding:28px}
  .qr-card{order:-1}
}
@media(max-width:520px){
  .download-panel{padding:22px}
  .download-actions{flex-direction:column; align-items:stretch}
  .download-note{max-width:none}
  .qr-frame svg{width:160px; height:160px}
}

/* ---------- Use cases ---------- */
.usecase-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:16px;
}
.card{
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
  transition:
    transform 200ms var(--ease-out),
    box-shadow 200ms var(--ease-out),
    border-color 200ms ease;
}
.card .icon{
  display:flex;
  align-items:center;
  justify-content:center;
  width:42px; height:42px;
  margin-bottom:16px;
  border-radius:12px;
  background:var(--ice);
  color:var(--teal-deep);
}
.card .icon svg{width:22px; height:22px}
.card h3{
  font-family:var(--font-body);
  font-size:15.5px;
  font-weight:700;
  color:var(--navy);
  letter-spacing:-.012em;
  margin-bottom:8px;
}
.card p{font-size:14px; color:var(--muted); line-height:1.6}

@media(hover:hover) and (pointer:fine){
  .card:hover{
    transform:translateY(-3px);
    box-shadow:var(--shadow-md);
    border-color:var(--line-2);
  }
}

.card--feature{
  grid-column:1 / -1;
  position:relative;
  display:grid;
  grid-template-columns:56px minmax(0,1fr);
  gap:0 24px;
  align-items:center;
  padding:clamp(24px,3vw,34px);
  border-color:transparent;
  background:linear-gradient(150deg,#0B2A45,#071A2B);
  overflow:hidden;
}
.card--feature::after{
  content:"";
  position:absolute;
  top:-120px; right:-80px;
  width:320px; height:320px;
  background:radial-gradient(circle, rgba(25,195,154,.22), transparent 70%);
  pointer-events:none;
}
.card--feature > *{position:relative; z-index:1}
.card--feature .icon{
  grid-row:span 2;
  width:56px; height:56px;
  margin-bottom:0;
  border-radius:14px;
  background:rgba(25,195,154,.14);
  color:var(--mint);
}
.card--feature h3{
  font-family:var(--font-head);
  font-size:clamp(1.05rem,1.6vw,1.3rem);
  font-weight:600;
  color:#fff;
  letter-spacing:-.02em;
  margin-bottom:6px;
}
.card--feature p{color:#A8BFCD; max-width:72ch}
@media(hover:hover) and (pointer:fine){
  .card--feature:hover{transform:none; box-shadow:none; border-color:transparent}
}
@media(max-width:600px){
  .card--feature{grid-template-columns:1fr; gap:14px}
  .card--feature .icon{grid-row:auto}
}

/* ---------- Team ---------- */
.team-wrap{
  display:grid;
  grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);
  gap:clamp(32px,5vw,64px);
  align-items:start;
  margin-top:clamp(28px,4vw,44px);
}
.monogram{
  position:relative;
  aspect-ratio:1;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  gap:8px;
  padding:28px;
  border-radius:20px;
  overflow:hidden;
  background:linear-gradient(155deg,#11768D,#0A2540 72%);
  box-shadow:var(--shadow-md);
}
.monogram::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(70% 60% at 82% 0%, rgba(25,195,154,.35), transparent 68%);
  pointer-events:none;
}
.monogram-initials{
  position:relative;
  font-family:var(--font-head);
  font-size:clamp(40px,6vw,58px);
  font-weight:600;
  line-height:1;
  letter-spacing:-.02em;
  color:#fff;
}
.monogram-caption{
  position:relative;
  font-size:11px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:#9FE0CE;
}
.team-name{
  font-family:var(--font-head);
  font-size:clamp(1.35rem,2.2vw,1.55rem);
  font-weight:600;
  color:var(--navy);
  letter-spacing:-.02em;
  margin-bottom:4px;
}
.team-role{
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--teal-deep);
  margin-bottom:18px;
}
.team-bio p{font-size:14.5px; color:var(--muted); line-height:1.65; margin-bottom:14px}
.chip-row{display:flex; flex-wrap:wrap; gap:8px; margin-top:18px}
.chip{
  padding:5px 11px;
  border:1px solid var(--line-2);
  border-radius:99px;
  background:#fff;
  font-size:11.5px;
  font-weight:600;
  color:var(--teal-deep);
}
.team-stats{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:26px;
  padding-top:20px;
  border-top:1px solid var(--line);
}
.team-stats div b{
  display:block;
  font-family:var(--font-head);
  font-size:22px;
  font-weight:600;
  color:var(--navy);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.team-stats div span{font-size:12px; color:var(--muted)}
@media(max-width:880px){
  .team-wrap{grid-template-columns:1fr}
  .monogram{max-width:320px}
}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  padding:clamp(36px,6vw,64px);
  border-radius:24px;
  background:linear-gradient(140deg,#0B2A45,#061826);
  text-align:center;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-40%; left:50%;
  transform:translateX(-50%);
  width:560px; height:420px;
  background:radial-gradient(circle, rgba(25,195,154,.18), transparent 70%);
  pointer-events:none;
}
.cta-band > *{position:relative; z-index:1}
.cta-band h2{
  color:#fff;
  font-size:clamp(1.7rem,3.4vw,2.5rem);
  margin-bottom:12px;
}
.cta-band p{
  max-width:56ch;
  margin:0 auto 26px;
  font-size:15.5px;
  color:#A8BFCD;
}

/* ---------- Footer ---------- */
footer{
  padding:60px 0 30px;
  background:var(--navy-deep);
  color:#A9BDCC;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:40px;
}
footer h4{
  color:#fff;
  font-family:var(--font-body);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  margin-bottom:16px;
}
footer a{
  display:block;
  margin-bottom:10px;
  font-size:14px;
  color:#A9BDCC;
  transition:color 160ms ease;
}
@media(hover:hover) and (pointer:fine){
  footer a:hover{color:var(--mint)}
}
.footer-logo{
  display:flex;
  align-items:baseline;
  gap:6px;
  margin-bottom:12px;
  font-family:var(--font-head);
  font-size:20px;
  font-weight:600;
  color:#fff;
}
.footer-logo span{color:var(--mint); font-size:15px}
.footer-blurb{
  max-width:320px;
  margin-bottom:14px;
  font-size:14px;
  line-height:1.6;
  color:#93AAB9;
}
.patent-note{
  font-size:12.5px;
  font-style:italic;
  color:#D9A24A;
  line-height:1.55;
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:40px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:12.5px;
  color:#7E94A5;
}
@media(max-width:760px){
  .footer-grid{grid-template-columns:1fr; gap:28px}
}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed;
  right:24px; bottom:24px;
  z-index:900;
  display:flex;
  align-items:center;
  justify-content:center;
  width:44px; height:44px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.14);
  background:var(--navy);
  color:#fff;
  box-shadow:var(--shadow-md);
  opacity:0;
  transform:translateY(8px);
  pointer-events:none;
  transition:
    opacity 200ms ease,
    transform 200ms var(--ease-out),
    background-color 160ms ease;
}
.to-top.show{opacity:1; transform:none; pointer-events:auto}
@media(hover:hover) and (pointer:fine){
  .to-top:hover{background:var(--teal-deep)}
}

/* ---------- Scroll reveal ----------
   Visible by default. JS only marks elements that start below the fold,
   then removes the class when they enter — so content never gets stuck
   invisible if JS fails or the element is already on screen. */
.reveal{
  transition:
    opacity 520ms var(--ease-out),
    transform 520ms var(--ease-out);
  transition-delay:var(--reveal-delay,0ms);
}
html.js .reveal.reveal-pending{
  opacity:0;
  transform:translateY(14px);
}
html.js .shot.reveal-pending{transform:none}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr; gap:48px}
  .hero-visual{order:2}
  .hero .lead{max-width:60ch}
}
@media(max-width:560px){
  .hero h1{font-size:clamp(2.15rem,8.4vw,2.6rem)}
  .hero-stats{grid-template-columns:1fr; gap:16px}
  .hero-stats dd{max-width:none}
  .hero .btn{width:100%}
  .hero-cta .btn-primary{justify-content:center}
  .trust ul{justify-content:flex-start; gap:12px 20px}
}

/* ---------- Interactive Engine / Trajectory Reconstruction (§5.15) ---------- */
.engine-card{
  background:var(--navy-deep);
  border:1px solid rgba(255,255,255,.1);
  border-radius:24px;
  padding:clamp(20px,3.5vw,36px);
  box-shadow:var(--shadow-lg);
  color:#fff;
  overflow:hidden;
}
.engine-controls{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:16px;
  margin-bottom:20px;
}
.engine-toggles{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.btn-toggle{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:30px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.05);
  color:#A9BDCC;
  font-size:12.5px;
  font-weight:600;
  transition:background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}
.btn-toggle:hover{
  background:rgba(255,255,255,.1);
  color:#fff;
}
.btn-toggle.active{
  background:rgba(25,195,154,.15);
  border-color:var(--mint);
  color:#fff;
}
.toggle-dot{
  width:8px; height:8px;
  border-radius:50%;
  flex:0 0 auto;
}
.dot-cyan{background:var(--mint)}
.dot-mint{background:#8FE3CE}
.dot-amber{background:#E6953B}
.btn-replay{
  padding:8px 16px;
  font-size:12.5px;
  color:#A9BDCC;
  border-color:rgba(255,255,255,.16);
}
.btn-replay:hover{
  color:#fff;
  border-color:var(--mint);
}

.engine-canvas-wrap{
  position:relative;
  border-radius:18px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  background:#071826;
}
.engine-svg{
  width:100%;
  height:auto;
  display:block;
  aspect-ratio:900/420;
}
.engine-legend{
  display:flex;
  flex-wrap:wrap;
  gap:18px 28px;
  padding:14px 20px;
  background:rgba(6,24,38,.85);
  border-top:1px solid rgba(255,255,255,.08);
  font-size:12px;
  color:#8DA4B5;
}
.legend-item{display:inline-flex; align-items:center; gap:8px}
.leg-swatch{width:12px; height:3px; border-radius:2px; display:inline-block}
.leg-mint{background:var(--mint)}
.leg-amber{background:#E6953B}
.leg-reject{
  width:8px; height:8px;
  border-radius:50%;
  background:none;
  border:1.5px solid #FF5C5C;
}

.engine-metrics-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:20px;
  margin-top:28px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.1);
}
.metric-cell{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.metric-k{
  font-size:11px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--mint-soft);
}
.metric-v{
  font-family:var(--font-head);
  font-size:clamp(1.15rem,1.8vw,1.45rem);
  font-weight:600;
  color:#fff;
  letter-spacing:-.01em;
}
.metric-desc{
  font-size:12.5px;
  line-height:1.55;
  color:#8DA4B5;
  margin-top:4px;
}

/* ---------- Cognitive Assistance Profile Stage (§5.16) ---------- */
.profile-tabs{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:16px;
  margin-bottom:28px;
}
.profile-tab{
  padding:20px 22px;
  text-align:left;
  border:1px solid var(--line);
  border-radius:18px;
  background:#fff;
  transition:
    border-color 180ms ease,
    background-color 180ms ease,
    box-shadow 200ms var(--ease-out),
    transform 160ms var(--ease-out);
}
.profile-tab:hover{
  border-color:var(--line-2);
  transform:translateY(-2px);
  box-shadow:var(--shadow-sm);
}
.profile-tab.active{
  border-color:var(--teal);
  background:linear-gradient(160deg,#F0F8FA,#fff);
  box-shadow:var(--shadow-md);
}
.tab-profile-tag{
  display:block;
  font-size:10.5px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--teal-deep);
  margin-bottom:4px;
}
.profile-tab strong{
  display:block;
  font-family:var(--font-body);
  font-size:15.5px;
  font-weight:700;
  color:var(--navy);
  margin-bottom:4px;
}
.tab-cue-type{
  display:block;
  font-size:12.5px;
  color:var(--muted);
}

.profile-display-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:24px;
  padding:clamp(22px,3.5vw,36px);
  box-shadow:var(--shadow-md);
}
.profile-view-wrap{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(28px,4vw,52px);
  align-items:center;
}
@media(max-width:860px){
  .profile-view-wrap{grid-template-columns:1fr}
}
.profile-mock-screen{
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--navy-deep);
  background:#091926;
  box-shadow:var(--shadow-md);
  aspect-ratio:16/10;
  position:relative;
}
.profile-camera-view{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  padding:18px;
  background:
    radial-gradient(120% 80% at 50% 100%, #112F40 0%, #071520 70%);
}
.camera-hud-top{
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:10.5px;
  font-weight:700;
  letter-spacing:.12em;
  color:#A9BDCC;
  z-index:2;
}
.cam-badge{
  background:rgba(25,195,154,.15);
  border:1px solid rgba(25,195,154,.3);
  color:var(--mint-soft);
  padding:4px 10px;
  border-radius:20px;
}
.cam-dist{color:#FFD166}

.ar-cues-stage{
  position:relative;
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
  perspective:500px;
}

/* Perspective floor for AR cues */
.cues-ground{
  position:relative;
  width:100%;
  height:100%;
  transform:rotateX(42deg);
  display:flex;
  flex-direction:column-reverse;
  align-items:center;
  justify-content:space-evenly;
  padding-bottom:10px;
}

/* Footprints cues (Autism) */
.footprint-pair{
  display:flex;
  gap:22px;
  animation:stepGlow 2.4s ease-in-out infinite alternate;
}
.footprint-pair:nth-child(1){opacity:1}
.footprint-pair:nth-child(2){opacity:0.8; transform:scale(0.85)}
.footprint-pair:nth-child(3){opacity:0.6; transform:scale(0.7)}
.foot-step{
  width:16px;
  height:26px;
  border-radius:10px 10px 8px 8px;
  background:var(--mint);
  box-shadow:0 0 12px rgba(25,195,154,.6);
  position:relative;
}
.foot-step::after{
  content:"";
  position:absolute;
  top:-6px; left:2px;
  width:12px; height:5px;
  border-radius:50%;
  background:var(--mint);
}
.step-left{transform:rotate(-6deg)}
.step-right{transform:rotate(6deg); margin-top:-8px}

/* Cartoon arrows / markers (Child) */
.child-cues{
  display:flex;
  flex-direction:column-reverse;
  align-items:center;
  gap:16px;
}
.star-marker{
  width:32px; height:32px;
  background:#FFD166;
  clip-path:polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
  box-shadow:0 0 16px rgba(255,209,102,.7);
  animation:bounceCue 1.8s ease-in-out infinite alternate;
}
.star-marker:nth-child(2){transform:scale(0.85); opacity:0.85}
.star-marker:nth-child(3){transform:scale(0.7); opacity:0.7}
@keyframes bounceCue{
  0%{transform:translateY(0)}
  100%{transform:translateY(-8px)}
}

/* Enlarged panels (Elderly) */
.elderly-cues{
  display:flex;
  flex-direction:column-reverse;
  align-items:center;
  gap:14px;
  width:80%;
}
.big-panel{
  width:100%;
  padding:10px 16px;
  background:#E6953B;
  color:#10202C;
  font-family:var(--font-body);
  font-weight:800;
  font-size:13px;
  letter-spacing:.08em;
  text-align:center;
  border-radius:8px;
  border:2px solid #FFF;
  box-shadow:0 4px 18px rgba(230,149,59,.5);
}
.big-panel:nth-child(2){transform:scale(0.88); opacity:0.85}
.big-panel:nth-child(3){transform:scale(0.75); opacity:0.7}

.camera-hud-bottom{
  z-index:2;
}
.cue-direction-tip{
  background:rgba(0,0,0,.6);
  border:1px solid rgba(255,255,255,.1);
  padding:8px 12px;
  border-radius:10px;
  font-size:11.5px;
  color:#E0EDF5;
  text-align:center;
}

.profile-details-pane .p-eyebrow{
  display:block;
  font-size:11px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--teal-deep);
  margin-bottom:8px;
}
.profile-details-pane h3{
  font-family:var(--font-head);
  font-size:clamp(1.35rem,2.2vw,1.75rem);
  font-weight:600;
  color:var(--navy);
  margin-bottom:12px;
  letter-spacing:-.015em;
}
.profile-details-pane p{
  font-size:14.5px;
  line-height:1.65;
  color:var(--muted);
  margin-bottom:20px;
}
.profile-spec-list{
  display:grid;
  gap:10px;
}
.profile-spec-list li{
  display:flex;
  flex-direction:column;
  padding:10px 14px;
  border-radius:12px;
  background:var(--paper-2);
  border:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.profile-spec-list li strong{
  color:var(--navy);
  font-size:12.5px;
  margin-bottom:2px;
}

/* ---------- Patent Diagrams Grid ---------- */
.patent-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:20px;
}
.patent-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:
    transform 200ms var(--ease-out),
    box-shadow 200ms var(--ease-out),
    border-color 200ms ease;
}
@media(hover:hover) and (pointer:fine){
  .patent-card:hover{
    transform:translateY(-3px);
    box-shadow:var(--shadow-md);
    border-color:var(--line-2);
  }
}
.patent-img-wrap{
  aspect-ratio:16/10;
  background:#F5F9FA;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:12px;
  overflow:hidden;
}
.patent-img-wrap img{
  max-width:100%;
  max-height:100%;
  object-fit:contain;
  mix-blend-mode:multiply;
  transition:transform 300ms var(--ease-out);
}
@media(hover:hover) and (pointer:fine){
  .patent-card:hover .patent-img-wrap img{
    transform:scale(1.04);
  }
}
.patent-card figcaption{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.fig-tag{
  font-family:var(--font-mono);
  font-size:10.5px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--teal-deep);
}
.patent-card h4{
  font-family:var(--font-body);
  font-size:15px;
  font-weight:700;
  color:var(--navy);
  letter-spacing:-.01em;
}
.patent-card p{
  font-size:13px;
  color:var(--muted);
  line-height:1.55;
}

/* ---------- Reduced motion overrides for new components ---------- */
@media(prefers-reduced-motion:reduce){
  .star-marker,
  .footprint-pair{animation:none}
  .btn-toggle,
  .profile-tab,
  .patent-card{transition-duration:1ms}
}
   Fewer and gentler, not zero. Movement and loops stop; opacity stays. */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .ar-path-shadow,
  .ar-path{animation:none; stroke-dashoffset:0}
  .ar-chev path{animation:none; opacity:.6}
  .origin-ring{animation:none; opacity:.7}
  .screen-progress i{animation:none}
  .readout{animation:none}
  .reveal{transition:opacity 200ms ease}
  html.js .reveal.reveal-pending{transform:none}
  html.js .shot.reveal-pending img{clip-path:inset(0)}
  .btn,
  .card,
  .shot img,
  .to-top{transition-duration:1ms}
  .btn:active{transform:none}
}