/* ============================================================
   Awdah AI — Design System
   ============================================================ */
:root{
  --navy:#0B2545;
  --navy-deep:#071A33;
  --teal:#13718A;
  --teal-d:#0C4E5E;
  --mint:#1FC8A6;
  --mint-d:#149478;
  --ice:#EAF2F7;
  --ice-2:#F4F9FB;
  --emph:#D7F0E8;
  --ink:#10202C;
  --grey:#5B6B7B;
  --grey-l:#8C9BAA;
  --amber:#B8740B;
  --amber-bg:#FBF1DD;
  --line:#E3ECF1;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(11,37,69,.06);
  --shadow-md:0 12px 32px rgba(11,37,69,.10);
  --shadow-lg:0 24px 60px rgba(11,37,69,.16);
  --maxw:1140px;
  --font-head:"Source Serif 4", Georgia, "Times New Roman", serif;
  --font-body:"Inter", -apple-system, "Segoe UI", system-ui, sans-serif;
}

*{box-sizing:border-box; margin:0; padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  color:var(--ink);
  line-height:1.65;
  background:#fff;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,video{max-width:100%; display:block}
a{color:inherit}
ul{list-style:none}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 24px}
section{position:relative}
.section-pad{padding:96px 0}
@media(max-width:760px){ .section-pad{padding:64px 0} }

.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:12.5px; font-weight:700; letter-spacing:.06em; text-transform:uppercase;
  color:var(--teal-d); background:var(--emph); border:1px solid rgba(19,113,138,.25);
  border-radius:30px; padding:7px 16px; margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--mint)}

h1,h2,h3,h4{font-family:var(--font-head); color:var(--navy); font-weight:700; letter-spacing:-.01em}
h2.section-title{font-size:clamp(28px,4vw,38px); margin-bottom:14px}
p.section-lead{font-size:17px; color:var(--grey); max-width:680px; margin-bottom:44px}
.center{text-align:center; margin-left:auto; margin-right:auto}

.btn{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-body); font-weight:700; font-size:15px;
  padding:14px 28px; border-radius:12px; text-decoration:none;
  cursor:pointer; border:none; transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--teal),var(--teal-d)); color:#fff; box-shadow:var(--shadow-md)}
.btn-primary:hover{transform:translateY(-2px); box-shadow:var(--shadow-lg)}
.btn-ghost{background:transparent; color:var(--navy); border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--teal); color:var(--teal-d); transform:translateY(-2px)}
.btn-light{background:#fff; color:var(--teal-d)}
.btn-light:hover{transform:translateY(-2px); box-shadow:var(--shadow-md)}

/* ---------- Header ---------- */
header{
  position:fixed; top:0; left:0; right:0; z-index:1000;
  backdrop-filter:blur(10px); background:rgba(255,255,255,.82);
  border-bottom:1px solid transparent; transition:border-color .25s, box-shadow .25s, background .25s;
}
header.scrolled{border-color:var(--line); box-shadow:0 4px 24px rgba(11,37,69,.06)}
header .wrap{display:flex; align-items:center; justify-content:space-between; height:72px}
.logo{font-family:var(--font-head); font-weight:800; font-size:21px; color:var(--navy); display:flex; align-items:center; gap:8px; text-decoration:none}
.logo .mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--teal),var(--mint));
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;color:#fff;font-family:var(--font-body);font-weight:800;
}
.logo span{color:var(--mint-d)}
nav.primary-nav ul{display:flex; gap:28px; align-items:center}
nav.primary-nav a{font-size:14.5px; font-weight:600; color:var(--grey); text-decoration:none; transition:color .15s; position:relative}
nav.primary-nav a:hover{color:var(--teal-d)}
.nav-cta{display:flex; align-items:center; gap:18px}
.nav-cta .btn-primary{padding:10px 20px; font-size:14px}
.burger{display:none; flex-direction:column; gap:5px; cursor:pointer; background:none; border:none; padding:6px}
.burger span{width:24px;height:2px;background:var(--navy);border-radius:2px;transition:.2s}

@media(max-width:860px){
  nav.primary-nav{position:fixed; top:72px; left:0; right:0; background:#fff; border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md); padding:18px 24px 24px; transform:translateY(-8px); opacity:0; pointer-events:none; transition:.22s}
  nav.primary-nav.open{transform:translateY(0); opacity:1; pointer-events:auto}
  nav.primary-nav ul{flex-direction:column; align-items:flex-start; gap:14px; width:100%}
  .nav-cta .btn-ghost{display:none}
  .burger{display:flex}
}

/* ---------- Hero ---------- */
.hero{
  padding:168px 0 90px; position:relative; overflow:hidden;
  background:radial-gradient(circle at 18% 18%, rgba(19,113,138,.08), transparent 45%),
             radial-gradient(circle at 85% 0%, rgba(31,200,166,.10), transparent 40%),
             #fff;
}
.hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:56px; align-items:center}
@media(max-width:900px){ .hero-grid{grid-template-columns:1fr} }
.hero h1{font-size:clamp(34px,5vw,54px); line-height:1.1; max-width:640px}
.hero h1 .accent{color:var(--teal)}
.hero p.sub{font-size:19px; color:var(--grey); margin-top:20px; max-width:540px}
.hero-cta{display:flex; gap:14px; margin-top:32px; flex-wrap:wrap}
.hero-stats{display:flex; gap:34px; margin-top:48px; flex-wrap:wrap}
.hero-stat b{display:block; font-family:var(--font-head); font-size:26px; color:var(--navy)}
.hero-stat span{font-size:12.5px; color:var(--grey)}

.hero-visual{position:relative}
.phone-mock{
  position:relative; width:100%; max-width:300px; margin:0 auto;
  aspect-ratio:9/18; border-radius:34px; background:linear-gradient(160deg,#0E2C3D,#08151F);
  border:7px solid #0A1B26; box-shadow:var(--shadow-lg); overflow:hidden;
}
.phone-mock .screen{position:absolute; inset:0; display:flex; flex-direction:column; justify-content:flex-end; padding:18px}
.phone-mock .hud{background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.15); border-radius:10px; padding:10px 12px; margin-bottom:14px; backdrop-filter:blur(4px)}
.phone-mock .hud b{color:#FFD166; font-size:13px}
.phone-mock .hud small{color:#cfe8e0; display:block; font-size:11px; margin-top:2px}
.cue-trail{display:flex; flex-direction:column; align-items:center; gap:10px; margin-bottom:18px}
.cue-arrow{width:0;height:0; border-left:13px solid transparent; border-right:13px solid transparent; border-bottom:20px solid var(--mint); opacity:.55; animation:floatUp 2.2s ease-in-out infinite}
.cue-arrow:nth-child(1){animation-delay:0s; opacity:.95}
.cue-arrow:nth-child(2){animation-delay:.2s; opacity:.78}
.cue-arrow:nth-child(3){animation-delay:.4s; opacity:.6}
.cue-arrow:nth-child(4){animation-delay:.6s; opacity:.4}
@keyframes floatUp{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.phone-mock .progress{height:7px; background:rgba(255,255,255,.15); border-radius:6px; overflow:hidden}
.phone-mock .progress i{display:block; height:100%; width:64%; background:linear-gradient(90deg,var(--mint),#00E0B8); border-radius:6px}
.float-badge{
  position:absolute; background:#fff; border:1px solid var(--line); border-radius:14px;
  padding:10px 14px; box-shadow:var(--shadow-md); font-size:12.5px; font-weight:700; color:var(--navy);
  display:flex; align-items:center; gap:8px;
}
.float-badge .ico{width:8px;height:8px;border-radius:50%;background:var(--mint)}
.badge-1{top:6%; left:-6%}
.badge-2{bottom:10%; right:-8%}
@media(max-width:520px){ .float-badge{display:none} }

/* ---------- Marquee / trust strip ---------- */
.trust-strip{border-top:1px solid var(--line); border-bottom:1px solid var(--line); background:var(--ice-2); padding:22px 0}
.trust-strip .wrap{display:flex; flex-wrap:wrap; gap:28px; justify-content:center; align-items:center}
.trust-strip span{font-size:13px; color:var(--grey); font-weight:600; display:flex; align-items:center; gap:8px}
.trust-strip span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal)}

/* ---------- Cards / grid ---------- */
.grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); gap:20px}
.card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:26px;
  transition:transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover{transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:transparent}
.card .icon{width:44px;height:44px;border-radius:12px; display:flex; align-items:center; justify-content:center; margin-bottom:16px; background:var(--emph); color:var(--teal-d); font-size:20px}
.card h3{font-size:17.5px; color:var(--teal-d); margin-bottom:8px; font-family:var(--font-body); font-weight:700}
.card p{font-size:14.5px; color:var(--grey)}
.card.highlight{background:linear-gradient(160deg,var(--emph),#fff); border-color:rgba(19,113,138,.25)}
.card.dark{background:var(--navy); border-color:var(--navy)}
.card.dark h3{color:#fff}
.card.dark p{color:#B9CBDA}

/* ---------- Scroll-reveal (progressive enhancement: visible by default, only
   hidden once JS confirms it can animate the element back in) ---------- */
.reveal{opacity:1; transform:none; transition:opacity .6s ease, transform .6s ease}
html.js .reveal.pending{opacity:0; transform:translateY(24px)}
html.js .reveal.pending.in{opacity:1; transform:translateY(0)}

/* ---------- How it works steps ---------- */
.steps{display:grid; grid-template-columns:repeat(auto-fit,minmax(210px,1fr)); gap:28px; margin-top:8px; position:relative}
.step{position:relative; padding-left:2px}
.step .n{
  display:inline-flex; width:42px;height:42px;border-radius:50%;
  background:linear-gradient(135deg,var(--teal),var(--teal-d)); color:#fff;
  align-items:center; justify-content:center; font-weight:800; font-family:var(--font-head); margin-bottom:14px;
  box-shadow:0 6px 16px rgba(19,113,138,.3);
}
.step h3{font-size:16.5px; color:var(--navy); margin-bottom:6px; font-weight:700}
.step p{font-size:14px; color:var(--grey)}

/* ---------- Demo video ---------- */
.demo-section{background:var(--navy-deep); color:#fff; position:relative; overflow:hidden}
.demo-section::before{content:"";position:absolute; width:520px;height:520px; background:radial-gradient(circle,rgba(31,200,166,.18),transparent 70%); top:-160px; right:-160px}
.demo-section h2, .demo-section .eyebrow{color:#fff}
.demo-section .eyebrow{background:rgba(255,255,255,.1); border-color:rgba(255,255,255,.25); color:#CFEFE6}
.demo-section p.section-lead{color:#A9BDCC}
.video-frame{
  position:relative; border-radius:20px; overflow:hidden; border:1px solid rgba(255,255,255,.12);
  box-shadow:0 30px 80px rgba(0,0,0,.45); background:#000; max-width:880px; margin:0 auto;
}
.video-frame video{width:100%; display:block; background:#000}
.video-caption{display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; margin-top:18px; max-width:880px; margin-left:auto; margin-right:auto; color:#9FB4C4; font-size:13.5px}

/* ---------- Tech / stats ---------- */
.stat-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(190px,1fr)); gap:18px; margin:38px 0 44px}
.stat-card{background:var(--ice-2); border:1px solid var(--line); border-radius:var(--radius); padding:24px; text-align:left}
.stat-card .stat{font-family:var(--font-head); font-size:clamp(26px,3vw,34px); font-weight:800; color:var(--teal); line-height:1}
.stat-card .stat-l{font-size:13px; color:var(--grey); margin-top:8px}

.tech-flow{margin-top:18px}
.tech-explain{background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:28px; margin-top:10px}
.tech-explain h4{font-size:15px; color:var(--navy); margin-bottom:10px}
.tech-explain p{font-size:14.5px; color:var(--grey)}

.flow-toggle{display:flex; gap:10px; margin-bottom:24px; flex-wrap:wrap}
.flow-toggle button{
  font-family:var(--font-body); font-weight:700; font-size:13.5px; padding:9px 18px; border-radius:30px;
  border:1.5px solid var(--line); background:#fff; color:var(--grey); cursor:pointer; transition:.15s;
}
.flow-toggle button.active{background:var(--navy); color:#fff; border-color:var(--navy)}

.flow-diagram{display:none; gap:14px}
.flow-diagram.active{display:flex; flex-direction:column}
.flow-row{display:flex; align-items:stretch; gap:10px; flex-wrap:wrap}
.flow-box{
  flex:1; min-width:150px; background:#fff; border:1.5px solid var(--line); border-radius:12px;
  padding:14px 16px; font-size:13px; color:var(--ink); display:flex; flex-direction:column; gap:3px;
}
.flow-box b{font-size:13.5px; color:var(--navy)}
.flow-box.accent{border-color:var(--teal); background:var(--emph)}
.flow-box.cloud{border-color:var(--mint); background:#fff; box-shadow:var(--shadow-sm)}
.flow-arrow{display:flex; align-items:center; justify-content:center; color:var(--grey-l); font-size:18px; min-width:24px}
@media(max-width:700px){ .flow-arrow{transform:rotate(90deg)} }

/* ---------- Profile-adaptive cues ---------- */
.cue-compare{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:22px; margin-top:30px}
.cue-card{background:#10202C; border-radius:var(--radius); padding:22px; text-align:center; color:#fff}
.cue-screen{
  background:#1A2C38; border-radius:14px; height:230px; display:flex; flex-direction:column;
  align-items:center; justify-content:flex-end; gap:10px; padding:16px; margin-bottom:14px; border:1px solid rgba(255,255,255,.08);
}
.cue-card h4{font-size:14.5px; margin-bottom:4px}
.cue-card span{font-size:12.5px; color:#9FB4C4}
.footprint{width:16px;height:22px;border-radius:50% 50% 50% 50% / 60% 60% 40% 40%; background:var(--mint); opacity:.4; transform:rotate(8deg)}
.footprint:nth-child(odd){transform:rotate(-8deg) translateX(6px)}
.footprint.f1{opacity:1}.footprint.f2{opacity:.8}.footprint.f3{opacity:.6}.footprint.f4{opacity:.4}
.cartoon-pin{width:20px;height:20px;border-radius:50% 50% 50% 0; background:#FFC93C; transform:rotate(45deg); opacity:.5}
.cartoon-pin.c1{opacity:1}.cartoon-pin.c2{opacity:.75}.cartoon-pin.c3{opacity:.5}
.panel{width:90%; height:34px; background:var(--amber); border-radius:8px; display:flex; align-items:center; justify-content:center; color:#1a1305; font-weight:800; opacity:.55}
.panel.p1{opacity:1}.panel.p2{opacity:.6}

/* ---------- Use cases ---------- */
.usecase-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:20px}
.usecase-grid .card.featured{grid-column:span 2}
@media(max-width:700px){ .usecase-grid .card.featured{grid-column:span 1} }

/* ---------- Safety net ---------- */
.safety-wrap{display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center}
@media(max-width:880px){ .safety-wrap{grid-template-columns:1fr} }
.safety-diagram{background:var(--ice-2); border:1px solid var(--line); border-radius:var(--radius); padding:30px; position:relative}
.geofence{
  width:100%; aspect-ratio:1.4; border:3px dashed var(--mint-d); border-radius:50%;
  position:relative; display:flex; align-items:center; justify-content:center;
}
.geofence .origin{width:16px;height:16px;border-radius:50%;background:var(--teal-d); box-shadow:0 0 0 6px rgba(19,113,138,.15)}
.geofence .subject{
  position:absolute; top:14%; right:10%; width:14px;height:14px;border-radius:50%; background:var(--amber);
  box-shadow:0 0 0 6px rgba(184,116,11,.18);
}
.geofence .link-line{position:absolute; top:50%; left:50%; width:46%; height:2px; background:var(--amber); transform-origin:left center; transform:rotate(-32deg)}
.safety-list{display:flex; flex-direction:column; gap:18px; margin-top:24px}
.safety-item{display:flex; gap:14px; align-items:flex-start}
.safety-item .num{flex:0 0 auto; width:30px;height:30px;border-radius:50%; background:var(--emph); color:var(--teal-d); display:flex; align-items:center; justify-content:center; font-weight:800; font-size:13px}
.safety-item p{font-size:14.5px; color:var(--grey); margin-top:2px}
.safety-item b{color:var(--navy); font-size:15px}

/* ---------- Research ---------- */
.research-card{background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:32px}
.paper-meta{display:flex; flex-wrap:wrap; gap:10px; margin-bottom:16px}
.paper-meta span{font-size:12px; font-weight:700; padding:6px 12px; border-radius:30px; background:var(--ice); color:var(--teal-d)}
.research-card h3{font-size:21px; color:var(--navy); margin-bottom:10px}
.research-card .authors{font-size:14px; color:var(--grey); margin-bottom:16px}
.research-card .abstract{font-size:14.5px; color:var(--grey); border-left:3px solid var(--mint); padding-left:16px; margin-bottom:20px}
.result-table{width:100%; border-collapse:collapse; margin-top:8px; font-size:13.5px}
.result-table th, .result-table td{text-align:left; padding:10px 12px; border-bottom:1px solid var(--line)}
.result-table th{color:var(--grey); font-weight:700; font-size:12px; text-transform:uppercase; letter-spacing:.04em}
.result-table td.method{font-weight:700; color:var(--navy)}
.result-table tr.best td{color:var(--teal-d); font-weight:700}
.result-table tr.best{background:var(--emph)}

/* ---------- Counter numbers ---------- */
.counter{font-family:var(--font-head); font-weight:800}

/* ---------- Team ---------- */
.team-wrap{display:grid; grid-template-columns:.8fr 1.2fr; gap:48px; align-items:start}
@media(max-width:880px){ .team-wrap{grid-template-columns:1fr} }
.team-photo{
  width:100%; aspect-ratio:1; border-radius:var(--radius); background:linear-gradient(160deg,var(--teal),var(--navy));
  display:flex; align-items:center; justify-content:center; color:#fff; font-family:var(--font-head); font-size:64px; font-weight:800;
  box-shadow:var(--shadow-md);
}
.team-name{font-size:23px; color:var(--navy); margin-bottom:4px}
.team-role{font-size:14px; color:var(--teal-d); font-weight:700; margin-bottom:18px}
.team-bio p{font-size:14.5px; color:var(--grey); margin-bottom:14px}
.chip-row{display:flex; flex-wrap:wrap; gap:8px; margin-top:18px}
.chip{font-size:12px; font-weight:700; color:var(--teal-d); background:var(--ice); padding:6px 12px; border-radius:30px}
.team-stats{display:flex; gap:28px; margin-top:22px; flex-wrap:wrap}
.team-stats div b{display:block; font-family:var(--font-head); font-size:22px; color:var(--navy)}
.team-stats div span{font-size:12px; color:var(--grey)}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--teal-d),var(--navy)); border-radius:24px; padding:56px;
  color:#fff; text-align:center; margin:0 auto; max-width:var(--maxw);
}
.cta-band h2{color:#fff}
.cta-band p{color:#CFE3EC; max-width:560px; margin:0 auto 28px}

/* ---------- Footer ---------- */
footer{background:var(--navy-deep); color:#A9BDCC; padding:60px 0 30px}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:40px}
@media(max-width:760px){ .footer-grid{grid-template-columns:1fr; gap:28px} }
footer h4{color:#fff; font-size:14px; margin-bottom:14px; font-family:var(--font-body)}
footer a{color:#A9BDCC; text-decoration:none; font-size:14px; display:block; margin-bottom:10px; transition:.15s}
footer a:hover{color:var(--mint)}
.footer-logo{font-family:var(--font-head); font-weight:800; font-size:20px; color:#fff; margin-bottom:12px}
.footer-logo span{color:var(--mint)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1); margin-top:40px; padding-top:22px; display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; font-size:12.5px; color:#7E94A5}
.patent-note{font-style:italic; color:var(--amber); font-size:12.5px}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed; bottom:26px; right:26px; width:46px;height:46px;border-radius:50%;
  background:var(--navy); color:#fff; display:flex; align-items:center; justify-content:center;
  cursor:pointer; opacity:0; transform:translateY(10px); pointer-events:none; transition:.25s; z-index:900;
  box-shadow:var(--shadow-md); border:none; font-size:18px;
}
.to-top.show{opacity:1; transform:translateY(0); pointer-events:auto}

/* ---------- Misc ---------- */
.divider-line{height:1px; background:var(--line); margin:0}
.tag-amber{color:var(--amber); background:var(--amber-bg); font-size:12px; font-weight:700; padding:5px 12px; border-radius:30px; display:inline-flex; align-items:center; gap:6px}