:root{
    --brand:#1E88E5;
    --brand-800:#1565C0;
    --teal:#00ACC1;
    --orange:#FF9800;
    --ink-900:#14181F;
    --ink-700:#3A4150;
    --ink-500:#6B7280;
    --ink-300:#C7CBD1;
    --ink-100:#EEF1F4;
    --ink-50:#F8F9FB;
    --surface:#FFFFFF;
    --font-display:'Space Grotesk', 'Segoe UI', sans-serif;
    --font-body:'Inter', 'Segoe UI', sans-serif;
    --radius:12px;
    --max:1200px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-body);
    color:var(--ink-900);
    background:var(--surface);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3{font-family:var(--font-display); font-weight:600; margin:0; line-height:1.15;}
  p{margin:0;}
  a{text-decoration:none; color:inherit;}
  .wrap{max-width:var(--max); margin:0 auto; padding:0 24px;}
  img,svg{max-width:100%; display:block;}

  /* ---------- Header ---------- */
  header{
    position:sticky; top:0; z-index:50;
    background:rgba(255,255,255,0.92);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--ink-100);
  }
  .nav-row{display:flex; align-items:center; justify-content:space-between; height:72px;}
  .logo{font-family:var(--font-display); font-weight:700; font-size:1.35rem; color:var(--ink-900); display:flex; align-items:center; gap:8px;}
  .logo-dot{width:10px; height:10px; border-radius:50%; background:var(--orange);}
  .logo-img{width:38px; height:38px; border-radius:9px; object-fit:cover; display:block;}
  .logo-img.footer{width:34px; height:34px;}
  nav.primary-nav{display:flex; gap:28px;}
  nav.primary-nav a{font-size:0.925rem; font-weight:500; color:var(--ink-700); padding:8px 0; border-bottom:2px solid transparent; transition:color .15s, border-color .15s;}
  nav.primary-nav a:hover{color:var(--brand-800); border-color:var(--brand-800);}
  .nav-actions{display:flex; align-items:center; gap:12px;}
  .btn{
    display:inline-flex; align-items:center; justify-content:center;
    padding:10px 20px; border-radius:8px; font-weight:600; font-size:0.9rem;
    cursor:pointer; border:1.5px solid transparent; transition:transform .15s, box-shadow .15s, background .15s;
    white-space:nowrap;
  }
  .btn:active{transform:scale(0.98);}
  .btn-ghost{color:var(--ink-700); border-color:var(--ink-300); background:transparent;}
  .btn-ghost:hover{border-color:var(--brand-800); color:var(--brand-800);}
  .btn-primary{background:var(--brand-800); color:#fff;}
  .btn-primary:hover{background:#104e93; box-shadow:0 6px 16px rgba(21,101,192,0.28);}
  .btn-outline-white{border-color:rgba(255,255,255,0.55); color:#fff;}
  .btn-outline-white:hover{background:rgba(255,255,255,0.12);}
  .menu-toggle{display:none; background:none; border:none; cursor:pointer; padding:8px;}
  .menu-toggle span{display:block; width:22px; height:2px; background:var(--ink-900); margin:4px 0; border-radius:2px;}

  /* ---------- Hero ---------- */
  .hero{position:relative; overflow:hidden; background:linear-gradient(180deg, #F5FAFF 0%, #FFFFFF 65%);}
  .hero-inner{
    padding:88px 24px 96px; max-width:var(--max); margin:0 auto;
    display:grid; grid-template-columns:1fr; gap:40px; text-align:center; position:relative; z-index:2;
  }
  .eyebrow{
    display:inline-flex; align-self:center; align-items:center; gap:8px;
    font-size:0.8rem; font-weight:600; letter-spacing:.04em; color:var(--brand-800);
    background:rgba(30,136,229,0.08); border:1px solid rgba(30,136,229,0.25);
    padding:6px 14px; border-radius:999px; margin:0 auto;
  }
  .hero h1{font-size:clamp(2.1rem, 1.6rem + 2.4vw, 3.6rem); max-width:820px; margin:20px auto 0; letter-spacing:-0.01em;}
  .hero h1 .accent{color:var(--brand-800);}
  .hero p.lede{font-size:clamp(1.05rem, 1rem + 0.3vw, 1.2rem); color:var(--ink-700); max-width:640px; margin:20px auto 0;}
  .hero-ctas{display:flex; gap:16px; justify-content:center; margin-top:32px; flex-wrap:wrap;}
  .hero-ctas .btn{padding:14px 26px; font-size:0.95rem;}

  .hero-canvas{position:absolute; inset:0; z-index:1; opacity:0.55;}

  /* ---------- Section shell ---------- */
  section{padding:88px 0;}
  .section-head{max-width:640px; margin:0 auto 48px; text-align:center;}
  .section-head .eyebrow{margin-bottom:16px;}
  .section-head h2{font-size:clamp(1.6rem, 1.4rem + 1vw, 2.35rem);}
  .section-head p{color:var(--ink-700); margin-top:14px; font-size:1.02rem;}

  /* ---------- Ecosystem cards ---------- */
  .ecosystem-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:20px;}
  .eco-card{
    border:1px solid var(--ink-100); border-radius:var(--radius); padding:28px 24px;
    background:var(--surface); position:relative; overflow:hidden;
    transition:transform .2s, box-shadow .2s;
  }
  .eco-card:hover{transform:translateY(-4px); box-shadow:0 16px 32px rgba(20,24,31,0.08);}
  .eco-card::before{content:""; position:absolute; top:0; left:0; right:0; height:4px; background:var(--accent, var(--brand));}
  .eco-card.c-junior{--accent:var(--orange);}
  .eco-card.c-campus{--accent:var(--brand);}
  .eco-card.c-pro{--accent:var(--teal);}
  .eco-card.c-enterprise{--accent:var(--ink-900);}
  .eco-tag{font-size:0.78rem; font-weight:600; color:var(--ink-500); text-transform:uppercase; letter-spacing:.05em;}
  .eco-card h3{font-size:1.2rem; margin-top:8px;}
  .eco-list{list-style:none; padding:0; margin:16px 0 22px; display:flex; flex-wrap:wrap; gap:6px;}
  .eco-list li{font-size:0.78rem; color:var(--ink-700); background:var(--ink-50); padding:4px 10px; border-radius:999px;}
  .eco-card .btn{width:100%; border:1.5px solid var(--ink-100); color:var(--ink-900); background:var(--ink-50); font-size:0.85rem; padding:10px;}
  .eco-card .btn:hover{border-color:var(--accent); color:var(--ink-900); background:#fff;}

  /* ---------- Why KodeBee (feature grid) ---------- */
  .why-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:24px;}
  .why-card{padding:8px 4px;}
  .why-icon{
    width:44px; height:44px; border-radius:10px; background:var(--ink-50);
    display:flex; align-items:center; justify-content:center; margin-bottom:18px;
    border:1px solid var(--ink-100);
  }
  .why-card h3{font-size:1.05rem;}
  .why-card p{color:var(--ink-700); font-size:0.92rem; margin-top:8px;}

  /* ---------- Learning journey timeline ---------- */
  .journey{background:var(--ink-50); border-radius:20px; padding:56px 32px;}
  .journey-track{display:grid; grid-template-columns:repeat(7,1fr); gap:0; position:relative;}
  .journey-track::before{
    content:""; position:absolute; top:19px; left:calc(100%/14); right:calc(100%/14);
    height:2px; background:var(--ink-300); z-index:0;
  }
  .journey-step{position:relative; z-index:1; text-align:center; padding:0 6px;}
  .journey-num{
    width:38px; height:38px; border-radius:50%; background:var(--surface); border:2px solid var(--brand-800);
    color:var(--brand-800); font-family:var(--font-display); font-weight:700; font-size:0.95rem;
    display:flex; align-items:center; justify-content:center; margin:0 auto 14px;
  }
  .journey-step:nth-child(even) .journey-num{border-color:var(--teal); color:var(--teal);}
  .journey-step h4{font-family:var(--font-body); font-weight:600; font-size:0.88rem; color:var(--ink-900);}

  /* ---------- Success stories (empty state, per no-fake-content rule) ---------- */
  .empty-slot{
    border:1.5px dashed var(--ink-300); border-radius:var(--radius);
    padding:40px 28px; text-align:center; background:var(--ink-50);
  }
  .empty-slot .icon{
    width:40px; height:40px; border-radius:50%; background:var(--surface); border:1px solid var(--ink-300);
    display:flex; align-items:center; justify-content:center; margin:0 auto 16px; color:var(--ink-500); font-size:1.1rem;
  }
  .empty-slot h3{font-size:1rem; color:var(--ink-700);}
  .empty-slot p{font-size:0.88rem; color:var(--ink-500); margin-top:6px; max-width:420px; margin-left:auto; margin-right:auto;}

  /* ---------- CTA band ---------- */
  .cta-band{
    background:linear-gradient(135deg, var(--brand-800), var(--teal));
    border-radius:24px; padding:56px 40px; text-align:center; color:#fff;
  }
  .cta-band h2{font-size:clamp(1.5rem,1.3rem + 1vw,2.1rem); color:#fff;}
  .cta-band p{color:rgba(255,255,255,0.85); margin-top:12px; max-width:520px; margin-left:auto; margin-right:auto;}
  .cta-band .hero-ctas{margin-top:28px;}

  /* ---------- Footer ---------- */
  footer{background:var(--ink-900); color:var(--ink-300); padding:64px 0 28px;}
  .footer-grid{display:grid; grid-template-columns:1.4fr repeat(3,1fr); gap:32px; padding-bottom:40px; border-bottom:1px solid rgba(255,255,255,0.1);}
  footer h4{color:#fff; font-family:var(--font-body); font-size:0.85rem; font-weight:600; margin-bottom:16px; text-transform:uppercase; letter-spacing:.04em;}
  footer ul{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:10px;}
  footer a{font-size:0.88rem; color:var(--ink-300); transition:color .15s;}
  footer a:hover{color:#fff;}
  .footer-bottom{display:flex; justify-content:space-between; align-items:center; padding-top:24px; flex-wrap:wrap; gap:12px;}
  .footer-bottom span{font-size:0.8rem; color:var(--ink-500);}
  .footer-legal{display:flex; gap:20px;}
  .footer-legal a{font-size:0.8rem;}

  /* ---------- Scroll reveal ---------- */
  .reveal{opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease;}
  .reveal.is-visible{opacity:1; transform:translateY(0);}
  @media (prefers-reduced-motion: reduce){
    .reveal{opacity:1; transform:none; transition:none;}
    html{scroll-behavior:auto;}
  }

  /* ---------- Responsive ---------- */
  @media (max-width:960px){
    .ecosystem-grid, .why-grid{grid-template-columns:repeat(2,1fr);}
    .journey-track{grid-template-columns:repeat(4,1fr); row-gap:32px;}
    .journey-track::before{display:none;}
    .footer-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:720px){
    nav.primary-nav, .nav-actions .btn-ghost{display:none;}
    .menu-toggle{display:block;}
    .ecosystem-grid, .why-grid{grid-template-columns:1fr;}
    .journey-track{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr; gap:24px;}
  }

  /* ---------- Sub-page hero (shorter than homepage hero) ---------- */
  .page-hero{background:linear-gradient(180deg, #F5FAFF 0%, #FFFFFF 65%); padding:64px 0 72px;}
  .page-hero .wrap{text-align:center;}
  .page-hero h1{font-size:clamp(1.9rem, 1.5rem + 2vw, 3rem); max-width:760px; margin:18px auto 0;}
  .page-hero p.lede{font-size:clamp(1rem, 0.95rem + 0.3vw, 1.15rem); color:var(--ink-700); max-width:600px; margin:18px auto 0;}
  .page-hero .hero-ctas{margin-top:28px;}

  /* ---------- Overview strip (bulleted highlights) ---------- */
  .overview-strip{display:grid; grid-template-columns:repeat(4,1fr); gap:20px;}
  .overview-item{border:1px solid var(--ink-100); border-radius:var(--radius); padding:22px; text-align:center;}
  .overview-item .num{font-family:var(--font-display); font-weight:700; color:var(--brand-800); font-size:1.4rem;}
  .overview-item p{font-size:0.85rem; color:var(--ink-700); margin-top:6px;}

  /* ---------- Lab / module grid (icon cards) ---------- */
  .lab-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px;}
  .lab-card{border:1px solid var(--ink-100); border-radius:var(--radius); padding:22px 20px; transition:transform .2s, box-shadow .2s;}
  .lab-card:hover{transform:translateY(-3px); box-shadow:0 14px 28px rgba(20,24,31,0.07);}
  .lab-card .why-icon{margin-bottom:14px;}
  .lab-card h3{font-size:0.98rem;}
  .lab-card p{font-size:0.85rem; color:var(--ink-700); margin-top:6px;}

  /* ---------- Module list (Teacher Academy) ---------- */
  .module-list{display:grid; grid-template-columns:repeat(3,1fr); gap:16px;}
  .module-item{display:flex; align-items:flex-start; gap:14px; padding:18px; border-radius:var(--radius); background:var(--surface); border:1px solid var(--ink-100);}
  .module-check{width:28px; height:28px; border-radius:50%; background:rgba(0,172,193,0.12); color:var(--teal); display:flex; align-items:center; justify-content:center; font-weight:700; flex-shrink:0; font-size:0.85rem;}
  .module-item span.label{font-size:0.92rem; font-weight:600; color:var(--ink-900);}

  /* ---------- Pricing ---------- */
  .pricing-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:20px; align-items:stretch;}
  .price-card{border:1px solid var(--ink-100); border-radius:var(--radius); padding:28px 24px; display:flex; flex-direction:column; background:var(--surface);}
  .price-card.featured{border-color:var(--brand-800); box-shadow:0 16px 32px rgba(21,101,192,0.12); position:relative;}
  .price-card.featured::after{
    content:"Most popular"; position:absolute; top:-13px; left:50%; transform:translateX(-50%);
    background:var(--brand-800); color:#fff; font-size:0.7rem; font-weight:700; padding:4px 12px; border-radius:999px;
    letter-spacing:.03em; text-transform:uppercase;
  }
  .price-card .eco-tag{margin-bottom:4px;}
  .price-card h3{font-size:1.15rem; margin-top:6px;}
  .price-slot{
    margin:18px 0 20px; padding:14px; border:1.5px dashed var(--ink-300); border-radius:8px;
    text-align:center; color:var(--ink-500); font-size:0.85rem; background:var(--ink-50);
  }
  .price-card ul.feature-list{list-style:none; padding:0; margin:0 0 24px; flex:1; display:flex; flex-direction:column; gap:10px;}
  .price-card ul.feature-list li{font-size:0.86rem; color:var(--ink-700); padding-left:20px; position:relative;}
  .price-card ul.feature-list li::before{content:"✓"; position:absolute; left:0; color:var(--teal); font-weight:700;}
  .price-card .btn{width:100%;}

  /* ---------- FAQ accordion ---------- */
  .faq-list{max-width:760px; margin:0 auto; display:flex; flex-direction:column; gap:12px;}
  .faq-item{border:1px solid var(--ink-100); border-radius:10px; overflow:hidden; background:var(--surface);}
  .faq-item summary{
    cursor:pointer; padding:18px 22px; font-weight:600; font-size:0.95rem; color:var(--ink-900);
    list-style:none; display:flex; justify-content:space-between; align-items:center;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{content:"+"; font-size:1.2rem; color:var(--ink-500); font-weight:400;}
  .faq-item[open] summary::after{content:"–";}
  .faq-item .faq-body{padding:0 22px 20px; font-size:0.88rem; color:var(--ink-700); line-height:1.65;}

  @media (max-width:960px){
    .overview-strip, .lab-grid, .module-list, .pricing-grid{grid-template-columns:repeat(2,1fr);}
  }
  @media (max-width:720px){
    .overview-strip, .lab-grid, .module-list, .pricing-grid{grid-template-columns:1fr;}
    .price-card.featured{order:-1;}
  }