:root{
    /* WhatsApp greens — used ONLY for chat/WhatsApp visuals */
    --green:#25D366;
    --green-dark:#128C7E;
    --green-deep:#075E54;
    /* Brand blues — primary UI accent */
    --brand:#2563EB;
    --brand-hover:#1D4ED8;
    --brand-deep:#1E3A8A;
    --brand-light:#60A5FA;
    --teal:#2EC4C6;
    --navy:#0F1F3D;
    --ink:#1B2A47;
    --muted:#5B6B85;
    --line:#E3E8F0;
    --bg:#FFFFFF;
    --bg-soft:#F4F7FB;
    --bg-mint:#EAF9F0;
    --bg-tint:#EEF2FF;
    --radius:16px;
    --shadow:0 10px 30px rgba(15,31,61,.08);
    --max:1140px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
  a{color:inherit;text-decoration:none}
  img{max-width:100%}
  /* Container: centred wrapper that caps content width */
  .wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
  section{padding:88px 0}
  h1,h2,h3{color:var(--navy);line-height:1.15;letter-spacing:-.01em}
  h2{font-size:clamp(28px,3.4vw,40px);margin-bottom:14px}
  .lead{color:var(--muted);font-size:18px;max-width:640px}
  .eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-hover);margin-bottom:12px}
  .center{text-align:center}
  .center .lead{margin:0 auto}

  /* Buttons */
  .btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:999px;font-weight:600;font-size:16px;border:2px solid transparent;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}
  .btn:hover{transform:translateY(-2px)}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.35)}
  .btn-primary:hover{background:var(--brand-hover)}
  .btn-ghost{border-color:var(--line);color:var(--navy);background:#fff}
  .btn-ghost:hover{border-color:var(--navy)}
  .btn-sm{padding:10px 20px;font-size:14px}

  /* Nav */
  header{position:sticky;top:0;z-index:50;background:var(--navy);border-bottom:1px solid rgba(255,255,255,.08);box-shadow:0 4px 20px rgba(15,31,61,.25)}
  header .logo{flex:none}
  header .btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
  header .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1)}
  nav{display:flex;align-items:center;justify-content:space-between;height:88px;gap:28px}
  .logo{display:flex;align-items:center}
  .logo img{height:62px;width:auto;display:block}
  footer .logo img{height:48px}
  .nav-links{display:flex;gap:30px;margin-left:auto;font-weight:700;font-size:15px;color:#fff;white-space:nowrap}
  .nav-links a{opacity:.92}
  .nav-links a:hover{opacity:1;color:var(--brand-light)}
  .nav-cta{display:flex;gap:10px;align-items:center;white-space:nowrap}
  .menu-btn{display:none;background:none;border:0;font-size:26px;cursor:pointer;color:#fff}

  /* Hero */
  .hero{position:relative;overflow:hidden;padding:96px 0 80px;background:radial-gradient(1200px 600px at 85% -10%,var(--bg-tint) 0%,transparent 60%),linear-gradient(180deg,#FFFFFF 0%,var(--bg-soft) 100%)}
  .hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
  .badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;color:var(--brand-deep);margin-bottom:22px;box-shadow:var(--shadow)}
  .badge .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(37,99,235,.2)}
  .hero h1{font-size:clamp(38px,5.2vw,62px);font-weight:800;margin-bottom:20px}
  .hero h1 span{color:var(--brand-hover);position:relative}
  .hero h1 span::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:12px;background:rgba(37,99,235,.28);z-index:-1;border-radius:6px}
  .hero .lead{margin-bottom:32px}
  .hero-actions{display:flex;gap:14px;flex-wrap:wrap}
  .hero-proof{display:flex;gap:28px;flex-wrap:wrap;color:var(--muted);font-size:14px}
  .hero-proof strong{display:block;color:var(--navy);font-size:22px;line-height:1.1}


  /* Navy header + hero (matches Visual concept section) */
  header{background:linear-gradient(120deg,#0F1F3D 0%,#132A5C 25%,#0F1F3D 50%,#0B3A5E 75%,#0F1F3D 100%);background-size:300% 300%;animation:heroFlow 22s ease-in-out infinite;border-bottom:1px solid rgba(255,255,255,.12)}
  .nav-links{color:#fff;font-weight:700}
  .nav-links a:hover{color:var(--brand-light)}
  .nav-links.open{background:var(--navy);border-bottom-color:rgba(255,255,255,.12)}
  .menu-btn{color:#fff}
  header .btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
  header .btn-ghost:hover{border-color:#fff}
  /* Animated gradient hero */
  .hero{background:linear-gradient(120deg,#0F1F3D 0%,#132A5C 25%,#0F1F3D 50%,#0B3A5E 75%,#0F1F3D 100%);background-size:300% 300%;animation:heroFlow 22s ease-in-out infinite;isolation:isolate}
  .hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:0;will-change:transform}
  .hero::before{width:640px;height:640px;top:-220px;right:-120px;background:radial-gradient(circle,rgba(37,99,235,.55),rgba(37,99,235,0) 70%);animation:blobA 18s ease-in-out infinite alternate}
  .hero::after{width:560px;height:560px;bottom:-260px;left:-160px;background:radial-gradient(circle,rgba(96,165,250,.32),rgba(96,165,250,0) 70%);animation:blobB 24s ease-in-out infinite alternate}
  .hero .wrap{position:relative;z-index:1}
  @keyframes heroFlow{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
  @keyframes blobA{from{transform:translate(0,0) scale(1)}to{transform:translate(-140px,120px) scale(1.15)}}
  @keyframes blobB{from{transform:translate(0,0) scale(1)}to{transform:translate(180px,-90px) scale(1.1)}}
  @media (prefers-reduced-motion:reduce){header,.hero,.hero::before,.hero::after{animation:none}}
  .hero h1{color:#fff}
  .hero h1 span{color:var(--brand-light)}
  .hero h1 span::after{display:none}
  .hero .lead{color:#fff;font-weight:600}
  .badge{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);color:#fff;box-shadow:none}
  .badge .dot{background:var(--brand-light);box-shadow:0 0 0 4px rgba(96,165,250,.25)}
  .hero .btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
  .hero .btn-ghost:hover{border-color:#fff}
  .hero-proof{color:#C7D2E5;font-weight:600}
  .hero-proof strong{color:#fff}

  /* Phone mock */
  .phone-wrap{position:relative;display:flex;justify-content:center}
  .phone{width:320px;background:#111827;border-radius:40px;padding:14px;box-shadow:0 30px 60px rgba(15,31,61,.25);position:relative}
  .phone::before{content:"";position:absolute;top:14px;left:50%;transform:translateX(-50%);width:110px;height:24px;background:#111827;border-radius:0 0 16px 16px;z-index:2}
  .screen{background:#ECE5DD;border-radius:28px;overflow:hidden;height:560px;display:flex;flex-direction:column}
  .chat-head{background:var(--green-deep);color:#fff;padding:36px 16px 12px;display:flex;align-items:center;gap:10px}
  .avatar{width:34px;height:34px;border-radius:50%;background:var(--green);display:grid;place-items:center;font-weight:700;font-size:14px}
  .chat-head b{display:block;font-size:14px}
  .chat-head small{font-size:11px;opacity:.85}
  .chat-body{flex:1;padding:14px 12px;display:flex;flex-direction:column;gap:8px;overflow:hidden}
  .bubble{max-width:82%;padding:8px 12px;border-radius:12px;font-size:13px;line-height:1.4;box-shadow:0 1px 1px rgba(0,0,0,.08);position:relative}
  .bubble.in{background:#fff;align-self:flex-start;border-top-left-radius:2px}
  .bubble.out{background:#DCF8C6;align-self:flex-end;border-top-right-radius:2px}
  .bubble time{display:block;text-align:right;font-size:10px;color:#7A8A99;margin-top:2px}
  .tag{display:inline-block;font-size:10px;font-weight:700;padding:2px 8px;border-radius:999px;background:var(--bg-mint);color:var(--green-deep);margin-top:6px}
  .float-card{position:absolute;z-index:3;background:#fff;border-radius:14px;padding:12px 16px;box-shadow:var(--shadow);border:1px solid var(--line);font-size:13px}
  .float-card b{display:block;color:var(--navy);font-size:15px}
  .fc1{top:70px;left:-30px;white-space:nowrap}
  .fc2{bottom:70px;right:-10px}
  .float-card .up{color:var(--brand-hover);font-weight:700}

  /* Intro */
  .intro{background:#fff}
  .intro .wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
  .intro-points{list-style:none;display:grid;gap:14px;margin-top:24px}
  .intro-points li{display:flex;gap:12px;align-items:flex-start}
  .check{flex:none;width:24px;height:24px;border-radius:50%;background:var(--bg-tint);color:var(--brand-deep);display:grid;place-items:center;font-size:13px;font-weight:800;margin-top:2px}
  .stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .stat{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
  .stat b{display:block;font-size:34px;color:var(--navy);line-height:1}
  .stat span{color:var(--muted);font-size:14px;display:block;margin-top:8px}
  .stat.accent{background:var(--navy);border-color:var(--navy)}
  .stat.accent b{color:var(--brand-light)}
  .stat.accent span{color:#C7D2E5}
  .stat.feature{padding:28px}
  .stat.feature h4{font-size:18px;color:var(--navy);margin-bottom:8px}
  .stat.feature p{color:var(--muted);font-size:14px;line-height:1.55}

  /* Services */
  .services{background:var(--bg-soft)}
  /* Grid: 3-column card layout */
  .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
  .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:44px}
  /* Card: boxed content with padding, border and hover shadow */
  .card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .2s ease,box-shadow .2s ease}
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
  .icon{width:48px;height:48px;border-radius:12px;background:var(--bg-tint);color:var(--brand-deep);display:grid;place-items:center;font-size:22px;margin-bottom:18px}
  .card h3{font-size:19px;margin-bottom:8px}
  .card p{color:var(--muted);font-size:15px}
  /* Services icon boxes: solid navy, raised for a "pop" feel */
  .services .icon{
    width:52px;height:52px;border-radius:14px;background:#163857;color:#fff;
    font-size:26px;box-shadow:0 10px 22px rgba(22,56,87,.4),inset 0 1px 0 rgba(255,255,255,.15);
    transform:scale(1);transition:transform .25s ease,box-shadow .25s ease;
  }
  .services .card:hover .icon{transform:scale(1.12) translateY(-3px);box-shadow:0 16px 30px rgba(22,56,87,.5),inset 0 1px 0 rgba(255,255,255,.2)}
  .services .icon.icon-grey{color:#D6DAE0}

  /* Visual concept */
  .concept{background:var(--navy);color:#fff}
  .concept h2,.concept h3{color:#fff}
  .concept .lead{color:#B8C4DA}
  .concept .eyebrow{color:var(--brand-light)}
  .concept-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;margin-top:44px}
  .concept-visual{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:20px;display:flex;align-items:center;justify-content:center}
  .concept-visual img{width:100%;height:auto;border-radius:12px;display:block}
  .principles{display:grid;gap:18px}
  .principle{display:flex;gap:14px}
  .principle .n{flex:none;width:36px;height:36px;border-radius:10px;background:rgba(96,165,250,.18);color:var(--brand-light);display:grid;place-items:center;font-weight:800}
  .principle p{color:#B8C4DA;font-size:15px}
  .principle h3{font-size:17px;margin-bottom:4px}

  /* Audience */
  .audience{background:#fff}
  .persona{display:flex;gap:16px;align-items:flex-start}
  .persona .icon{margin:0;flex:none}
  .persona h3{font-size:18px;margin-bottom:6px}
  .persona p{color:var(--muted);font-size:15px}

  /* Demo */
  .demo{background:linear-gradient(180deg,var(--bg-soft),#fff)}
  .demo-shell{margin-top:44px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);overflow:hidden;display:grid;grid-template-columns:260px 1fr 300px;min-height:520px}
  .demo-side{border-right:1px solid var(--line);background:#FAFBFD}
  .demo-side .side-head{padding:16px;border-bottom:1px solid var(--line);font-weight:700;color:var(--navy);display:flex;justify-content:space-between;align-items:center}
  .pill{font-size:11px;background:var(--brand);color:#fff;border-radius:999px;padding:2px 8px}
  .conv{padding:12px 16px;border-bottom:1px solid var(--line);cursor:pointer;display:flex;gap:10px;align-items:center}
  .conv:hover,.conv.active{background:var(--bg-tint)}
  .conv .avatar{background:#CBD5E1;color:var(--navy);font-size:12px;width:32px;height:32px}
  .conv.active .avatar{background:var(--brand);color:#fff}
  .conv b{display:block;font-size:13px;color:var(--navy)}
  .conv span{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;max-width:150px}
  .demo-main{display:flex;flex-direction:column;background:#ECE5DD}
  .demo-main .chat-head{padding:14px 18px;background:#fff;color:var(--navy);border-bottom:1px solid var(--line)}
  .demo-main .chat-head small{color:var(--muted)}
  .demo-main .chat-body{padding:18px;overflow-y:auto;max-height:340px}
  .composer{display:flex;gap:10px;padding:14px;background:#fff;border-top:1px solid var(--line)}
  .composer input{flex:1;border:1px solid var(--line);border-radius:999px;padding:12px 16px;font-size:14px;font-family:inherit;outline:none}
  .composer input:focus{border-color:var(--brand)}
  .demo-info{border-left:1px solid var(--line);padding:18px;background:#FAFBFD;font-size:14px}
  .demo-info h4{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:14px 0 8px}
  .demo-info h4:first-child{margin-top:0}
  .kv{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px dashed var(--line)}
  .kv span:last-child{font-weight:600;color:var(--navy)}
  .stage{display:flex;gap:6px;flex-wrap:wrap}
  .stage button{font-size:12px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 10px;cursor:pointer;font-family:inherit}
  .stage button.on{background:var(--navy);color:#fff;border-color:var(--navy)}
  .quick{display:grid;gap:6px}
  .quick button{text-align:left;font-size:13px;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 10px;cursor:pointer;font-family:inherit;color:var(--ink)}
  .quick button:hover{border-color:var(--brand);background:var(--bg-tint)}
  .typing{align-self:flex-start;background:#fff;padding:8px 14px;border-radius:12px;font-size:13px;color:var(--muted);display:none}
  .typing.show{display:block}
  .demo-note{margin-top:16px;text-align:center;color:var(--muted);font-size:14px}

  /* CTA + footer */
  .cta{background:var(--brand-deep);color:#fff;text-align:center;padding:72px 0}
  .cta h2{color:#fff}
  .cta p{color:#C7D2FE;max-width:560px;margin:0 auto 28px}
  footer{background:var(--navy);color:#B8C4DA;padding:40px 0;font-size:14px}
  footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
  footer nav{height:auto;gap:22px}
  footer a:hover{color:#fff}

  /* Responsive */
  @media (max-width:960px){
    .hero .wrap,.intro .wrap,.concept-grid{grid-template-columns:1fr}
    .grid-3{grid-template-columns:1fr 1fr}
    .grid-2{grid-template-columns:1fr 1fr}
    .demo-shell{grid-template-columns:1fr}
    .demo-side,.demo-info{display:none}
    .float-card{display:none}
    .hero{padding:64px 0}
  }
  @media (max-width:640px){
    section{padding:64px 0}
    .nav-links,.nav-cta .btn-ghost{display:none}
    .menu-btn{display:block}
    .nav-links.open{display:flex;position:absolute;top:88px;left:0;right:0;flex-direction:column;background:var(--navy);padding:20px 24px;border-bottom:1px solid rgba(255,255,255,.1);gap:16px}
    .grid-3,.stat-grid,.grid-2{grid-template-columns:1fr 1fr}
    .grid-3{grid-template-columns:1fr}
    .logo img{height:40px}
    .phone{width:280px}
    .screen{height:500px}
  }