:root{
  --bg:#f7f9fb;--white:#fff;--text:#1C1A32;--muted:#667085;--navy:#1C1A32;--navy2:#252245;
  --blue:#64B8C2;--line:#e5eaf0;--soft:rgba(100,184,194,.12);--gold:#c8a45d;
  --shadow:0 24px 70px rgba(28,26,50,.10);--soft-shadow:0 14px 38px rgba(28,26,50,.07);
}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:"Almarai",Tahoma,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.85}a{text-decoration:none;color:inherit}button,input{font:inherit}.container{width:min(1160px,calc(100% - 32px));margin-inline:auto}.topbar{background:var(--navy);color:#fff;padding:8px 0;font-size:13px}.topbar-inner{display:flex;justify-content:space-between;gap:18px;align-items:center;flex-wrap:wrap}.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{display:flex;align-items:center;gap:13px}.brand-mark{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--navy),var(--blue));display:grid;place-items:center;position:relative}.brand-mark:before{content:"";width:28px;height:17px;border:3px solid var(--blue);border-radius:50%;position:absolute}.brand-mark:after{content:"";width:9px;height:9px;border-radius:50%;background:var(--blue);position:absolute}.brand strong{display:block;font-size:18px}.brand span{display:block;color:var(--muted);font-size:12px}.home-link{display:inline-flex;align-items:center;justify-content:center;padding:11px 18px;border-radius:999px;background:var(--navy);color:#fff;font-weight:800;font-size:13px}.hero{padding:58px 0 36px;background:radial-gradient(circle at 15% 15%,rgba(100,184,194,.17),transparent 27%),radial-gradient(circle at 90% 12%,rgba(100,184,194,.12),transparent 29%),linear-gradient(180deg,#fff,#f7f9fb)}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:38px;align-items:center}.kicker{display:inline-flex;align-items:center;gap:9px;padding:8px 14px;border-radius:999px;background:var(--soft);font-weight:800;font-size:13px;margin-bottom:18px}.kicker:before{content:"";width:8px;height:8px;background:var(--blue);border-radius:50%;box-shadow:0 0 0 7px rgba(100,184,194,.14)}h1{font-size:clamp(34px,5vw,60px);line-height:1.28;letter-spacing:-1px;margin-bottom:16px}.hero h1 span{color:var(--blue)}.hero p{color:var(--muted);font-size:16.5px;max-width:760px}.hero-card{background:var(--navy);border-radius:34px;padding:30px;color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}.hero-card:before{content:"";position:absolute;width:240px;height:240px;border-radius:50%;background:rgba(100,184,194,.17);left:-90px;top:-110px}.hero-card>*{position:relative;z-index:1}.hero-stat{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:18px}.hero-stat div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:14px}.hero-stat strong{display:block;font-size:24px;color:var(--blue)}.hero-card p{color:rgba(255,255,255,.76);font-size:14px}.test-section{padding:38px 0 74px}.test-shell{max-width:900px;margin:auto;background:#fff;border:1px solid var(--line);border-radius:34px;box-shadow:var(--shadow);overflow:hidden}.test-head{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;padding:24px 28px;display:flex;justify-content:space-between;align-items:center;gap:18px}.test-head h2{font-size:24px}.step-chip{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.15);border-radius:999px;padding:7px 12px;font-size:12px;font-weight:800}.progress-wrap{height:7px;background:#e8eef1}.progress-bar{height:100%;width:0;background:linear-gradient(90deg,var(--blue),#95d2d9);transition:.25s}.test-body{padding:30px}.notice{background:#f8fbfc;border:1px solid rgba(100,184,194,.24);border-radius:20px;padding:16px;color:#475467;font-size:14px;margin-bottom:20px}.notice strong{color:var(--navy)}.form-grid{display:grid;gap:16px}.field label{display:block;font-weight:800;margin-bottom:7px}.field input{width:100%;border:1px solid var(--line);border-radius:17px;padding:15px 16px;outline:none;background:#fff;color:var(--navy);font-size:16px}.field input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(100,184,194,.12)}.consent{display:flex;gap:10px;align-items:flex-start;background:#f8fafb;border:1px solid var(--line);border-radius:18px;padding:14px}.consent input{margin-top:6px;width:18px;height:18px;accent-color:var(--blue)}.btn{border:0;border-radius:999px;padding:14px 24px;font-weight:800;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:9px;transition:.2s}.btn-primary{background:var(--blue);color:var(--navy);box-shadow:0 12px 24px rgba(100,184,194,.25)}.btn-primary:hover{transform:translateY(-2px);background:#56aab4}.btn-dark{background:var(--navy);color:#fff}.btn-outline{background:#fff;color:var(--navy);border:1px solid var(--line)}.btn-danger-soft{background:#fff5f5;color:#a32929;border:1px solid #f2caca}.full{width:100%}.hidden{display:none!important}.plate-stage{text-align:center}.plate-title{font-size:22px;margin-bottom:6px}.plate-sub{color:var(--muted);font-size:14px;margin-bottom:18px}.plate-frame{position:relative;width:min(620px,100%);aspect-ratio:1/1;margin:0 auto 20px;border-radius:28px;overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--soft-shadow);touch-action:none;user-select:none}.plate-frame img{width:100%;height:100%;object-fit:contain;display:block;pointer-events:none;user-select:none}.trace-canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;cursor:crosshair}.x-marker{position:absolute;transform:translate(-50%,-50%);width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.94);border:2px solid var(--navy);display:grid;place-items:center;font-size:25px;font-weight:800;line-height:1;color:#111;box-shadow:0 4px 12px rgba(0,0,0,.15);pointer-events:none}.answers{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:680px;margin:0 auto}.answer-btn{min-height:64px;border:1px solid rgba(100,184,194,.25);background:#fff;border-radius:20px;color:var(--navy);font-size:22px;font-weight:800;cursor:pointer;box-shadow:0 10px 24px rgba(28,26,50,.05);transition:.18s}.answer-btn:hover{border-color:var(--blue);transform:translateY(-2px);background:#f8fcfc}.answer-btn:disabled{opacity:.55;cursor:wait}.trace-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:680px;margin:0 auto}.trace-help{max-width:680px;margin:0 auto 14px;padding:13px 15px;background:#f8fbfc;border:1px solid rgba(100,184,194,.22);border-radius:18px;color:#475467;font-size:13px}.trace-status{font-size:13px;color:var(--muted);margin-top:9px;min-height:24px}.complete-card{text-align:center;padding:12px 0}.complete-icon{width:82px;height:82px;border-radius:28px;background:linear-gradient(135deg,var(--navy),var(--blue));display:grid;place-items:center;color:#fff;font-size:34px;margin:0 auto 18px;box-shadow:0 18px 38px rgba(100,184,194,.24)}.email-box{direction:ltr;text-align:center;background:#f7f9fb;border:1px solid var(--line);border-radius:18px;padding:14px;margin:16px auto 20px;font-weight:800;max-width:520px;word-break:break-all}.success-message{background:#ecfff7;border:1px solid #bfead8;color:#07613c;border-radius:18px;padding:15px;font-weight:800}.error-box{background:#fff3f3;border:1px solid #f0c5c5;color:#9d2424;border-radius:18px;padding:14px;margin-bottom:16px;font-weight:700}.seo-section{padding:76px 0;background:#fff;border-top:1px solid var(--line)}.section-title{text-align:center;max-width:840px;margin:0 auto 38px}.section-title .small{color:var(--blue);font-weight:800}.section-title h2{font-size:clamp(30px,4vw,48px);line-height:1.3;margin:8px 0 12px}.section-title p{color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:var(--soft-shadow)}.card h3{font-size:20px;margin-bottom:8px}.card p{color:var(--muted);font-size:14.5px}.faq{display:grid;gap:12px;max-width:900px;margin:auto}.faq details{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px 20px}.faq summary{cursor:pointer;font-weight:800}.faq p{color:var(--muted);margin-top:10px;font-size:14.5px}.footer{background:var(--navy);color:#fff;padding:40px 0 24px}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:28px}.footer p,.footer a{color:rgba(255,255,255,.72);font-size:13.5px}.footer h3{font-size:22px;margin-bottom:7px}.footer-links{display:grid;gap:8px}.footer-bottom{margin-top:24px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.55);font-size:12px}.spinner{width:18px;height:18px;border-radius:50%;border:3px solid rgba(28,26,50,.22);border-top-color:var(--navy);animation:spin .75s linear infinite}.btn-dark .spinner{border-color:rgba(255,255,255,.25);border-top-color:#fff}@keyframes spin{to{transform:rotate(360deg)}}
@media(max-width:850px){.hero-grid{grid-template-columns:1fr}.cards{grid-template-columns:1fr}.hero-card{padding:24px}.test-body{padding:24px}.answers{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.answer-btn{font-size:clamp(15px,2.7vw,19px);min-height:56px;padding:8px 5px;line-height:1.35}.trace-actions{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}}
@media(max-width:620px){.topbar{display:none}.nav{min-height:74px}.brand-mark{width:42px;height:42px}.brand strong{font-size:14px}.brand span{font-size:10px}.home-link{padding:9px 13px}.hero{padding:34px 0 24px}h1{font-size:34px}.test-section{padding-top:22px}.test-shell{border-radius:26px}.test-head{padding:18px;align-items:flex-start}.test-head h2{font-size:20px}.test-body{padding:18px}.plate-frame{border-radius:20px}.x-marker{width:30px;height:30px;font-size:22px}.hero-stat{grid-template-columns:1fr 1fr}.seo-section{padding:58px 0}.container{width:min(100% - 22px,1160px)}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
/* Mobile test optimization: keep the plate and all three number choices visible together. */
@media(max-width:620px){
  .test-section{padding-top:14px;padding-bottom:44px}
  .test-head{padding:13px 14px;align-items:center}
  .test-head h2{font-size:17px;line-height:1.35}
  .step-chip{padding:5px 9px;font-size:11px}
  .test-body{padding:12px}
  .plate-title{font-size:18px;line-height:1.35;margin-bottom:2px}
  .plate-sub{font-size:12px;line-height:1.55;margin-bottom:8px}
  .plate-frame{
    width:min(100%,48svh,390px);
    margin:0 auto 10px;
    border-radius:18px;
  }
  .answers{
    width:100%;
    max-width:100%;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:7px;
    margin:0 auto;
  }
  .answer-btn{
    min-width:0;
    min-height:50px;
    padding:7px 3px;
    border-radius:15px;
    font-size:clamp(13px,4vw,17px);
    line-height:1.3;
    overflow-wrap:anywhere;
  }
  .trace-help{
    margin:0 auto 8px;
    padding:9px 11px;
    font-size:12px;
    line-height:1.55;
  }
  .trace-actions{
    grid-template-columns:1fr 1fr;
    gap:7px;
  }
  .trace-actions .btn{
    min-height:48px;
    padding:9px 8px;
    font-size:13px;
    line-height:1.35;
  }
}

@media(max-width:380px){
  .plate-frame{width:min(100%,45svh,330px)}
  .answer-btn{font-size:13px;min-height:48px}
}

/* Desktop test optimization: keep the plate and all answer buttons in the visible viewport. */
#testCard{scroll-margin-top:92px}

@media(min-width:851px){
  #screenTest[data-phase="numbers"] .plate-frame{
    width:min(520px,calc(100vh - 350px),100%);
    width:min(520px,calc(100dvh - 350px),100%);
  }

  #screenTest[data-phase="trace"] .plate-frame{
    width:min(480px,calc(100vh - 410px),100%);
    width:min(480px,calc(100dvh - 410px),100%);
  }

  .trace-actions{
    grid-template-columns:repeat(3,minmax(0,1fr));
    max-width:820px;
  }
}

@media(min-width:851px) and (max-height:900px){
  .test-section{padding-top:18px;padding-bottom:50px}
  .test-head{padding:15px 22px}
  .test-head h2{font-size:20px}
  .step-chip{padding:5px 10px;font-size:11px}
  .test-body{padding:14px 22px 18px}
  .plate-title{font-size:19px;line-height:1.35;margin-bottom:2px}
  .plate-sub{font-size:13px;line-height:1.5;margin-bottom:8px}

  #screenTest[data-phase="numbers"] .plate-frame{
    width:clamp(300px,calc(100vh - 350px),500px);
    width:clamp(300px,calc(100dvh - 350px),500px);
    margin-bottom:9px;
    border-radius:22px;
  }

  #screenTest[data-phase="trace"] .plate-frame{
    width:clamp(280px,calc(100vh - 420px),440px);
    width:clamp(280px,calc(100dvh - 420px),440px);
    margin-bottom:9px;
    border-radius:22px;
  }

  .answers{gap:9px}
  .answer-btn{min-height:52px;padding:8px 10px;font-size:18px;border-radius:17px}
  .trace-help{margin-bottom:7px;padding:8px 11px;font-size:11.5px;line-height:1.55}
  .trace-actions{gap:8px}
  .trace-actions .btn{min-height:46px;padding:9px 10px;font-size:12.5px;line-height:1.35}
  .trace-status{margin-top:5px;min-height:20px;font-size:12px}
}

@media(min-width:851px) and (max-height:700px){
  .test-head{padding:12px 20px}
  .test-body{padding:10px 20px 14px}
  .plate-title{font-size:18px}
  .plate-sub{margin-bottom:5px}

  #screenTest[data-phase="numbers"] .plate-frame{
    width:clamp(260px,calc(100dvh - 320px),380px);
    margin-bottom:7px;
  }

  #screenTest[data-phase="trace"] .plate-frame{
    width:clamp(240px,calc(100dvh - 385px),340px);
    margin-bottom:7px;
  }

  .answer-btn{min-height:48px;font-size:17px}
}