:root{
  --navy:#10204f;
  --blue:#2563ff;
  --blue2:#5b3dff;
  --orange:#ff8a00;
  --text:#111827;
  --muted:#657084;
  --bg:#f5f7ff;
  --card:#ffffff;
  --line:#e8ecf7;
  --shadow:0 22px 60px rgba(16,32,79,.10);
  --radius:24px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Arial, Helvetica, sans-serif;
  color:var(--text);
  background:#fff;
  line-height:1.55;
}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
.container{
  width:min(1180px, calc(100% - 40px));
  margin:0 auto;
}
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.navbar{
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.logo img{
  height:60px;
  width:auto;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:24px;
  font-weight:700;
  font-size:14px;
}
.nav-links a{color:#1f2a44}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  padding:13px 22px;
  font-weight:800;
  border:1px solid transparent;
  cursor:pointer;
  transition:.2s ease;
}
.btn-primary{
  color:#fff!important;
  background:linear-gradient(90deg,var(--blue),var(--blue2));
  box-shadow:0 12px 28px rgba(37,99,255,.26);
}
.btn-light{
  background:#fff;
  color:var(--blue)!important;
  border-color:#d7dfff;
}
.btn:hover{transform:translateY(-2px)}
.mobile-toggle{display:none}

.hero{
  overflow:hidden;
  background:radial-gradient(circle at 85% 10%, #e7edff 0, transparent 34%), linear-gradient(180deg,#fff,#f7f9ff);
  padding:88px 0 74px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:center;
}
.badge{
  display:inline-flex;
  padding:9px 14px;
  border-radius:999px;
  background:#eef3ff;
  color:var(--blue);
  font-weight:800;
  font-size:13px;
  margin-bottom:22px;
}
h1,h2,h3,h4{color:var(--navy);line-height:1.08;margin:0}
h1{font-size:58px;letter-spacing:-2px}
h2{font-size:42px;letter-spacing:-1px}
h3{font-size:24px}
.lead{
  color:var(--muted);
  font-size:19px;
  margin:24px 0 0;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:30px;
}
.trust-row{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  margin-top:24px;
  color:#334155;
  font-size:14px;
  font-weight:700;
}
.trust-row span:before{
  content:"✓";
  color:#16a34a;
  margin-right:7px;
}
.hero-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:30px;
  padding:16px;
  box-shadow:var(--shadow);
}
.hero-card img{
  border-radius:22px;
}

.section{padding:86px 0}
.section-soft{background:var(--bg)}
.center{text-align:center}
.section-title{
  max-width:820px;
  margin:0 auto 42px;
}
.section-title p{
  color:var(--muted);
  font-size:17px;
}

.problem-grid,
.module-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:0 16px 45px rgba(16,32,79,.06);
}
.card h3,.card h4{margin-bottom:12px}
.card p{color:var(--muted);margin:0 0 16px}
.icon{
  width:42px;
  height:42px;
  border-radius:14px;
  display:grid;
  place-items:center;
  background:#edf2ff;
  color:var(--blue);
  font-weight:900;
  margin-bottom:18px;
}

.deep-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.deep-card{
  min-height:100%;
}
.deep-card ul{
  padding-left:18px;
  color:var(--muted);
}
.deep-card li{margin-bottom:8px}
.image-card{
  padding:0;
  overflow:hidden;
}
.image-card .image-caption{
  padding:24px 28px 30px;
}

.showcase-grid{
  display:grid;
  grid-template-columns:.95fr 1.05fr;
  gap:64px;
  align-items:center;
}
.showcase-img{
  background:#fff;
  padding:14px;
  border-radius:28px;
  box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.check-list{
  list-style:none;
  padding:0;
  margin:26px 0 0;
}
.check-list li{
  margin-bottom:12px;
  color:#334155;
  font-weight:700;
}
.check-list li:before{
  content:"✓";
  color:#16a34a;
  margin-right:10px;
}

.stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.stat{
  background:#fff;
  border-radius:24px;
  padding:30px;
  text-align:center;
  box-shadow:0 14px 40px rgba(16,32,79,.06);
  border:1px solid var(--line);
}
.stat strong{
  display:block;
  color:var(--blue);
  font-size:32px;
  margin-bottom:6px;
}
.cta{
  border-radius:34px;
  padding:56px;
  background:linear-gradient(115deg,#102d8f,#324dff 55%,#ff7a1a);
  color:#fff;
  box-shadow:var(--shadow);
}
.cta h2{color:#fff}
.cta-grid{
  display:grid;
  grid-template-columns:1.5fr .5fr;
  gap:30px;
  align-items:center;
}

.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:70px;
  align-items:center;
}
.contact-info{
  margin-top:28px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.contact-info-item{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1rem;
}
.contact-icon{
  font-size:1.2rem;
  width:28px;
  text-align:center;
}
.contact-info-item a{
  color:var(--text);
  text-decoration:none;
  font-weight:500;
}
.contact-info-item a:hover{
  color:var(--primary);
}
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:28px;
  padding:34px;
  box-shadow:var(--shadow);
}
input,textarea,button{
  font:inherit;
}
.form-control{
  width:100%;
  border:1px solid #dfe5f3;
  border-radius:14px;
  padding:14px 16px;
  margin-bottom:14px;
  outline:none;
}
.form-control:focus{
  border-color:var(--blue);
  box-shadow:0 0 0 4px rgba(37,99,255,.12);
}
button.btn-primary{
  width:100%;
  border:none;
}

.site-footer{
  background:#0c173c;
  color:#cbd5e1;
  padding:54px 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr auto;
  gap:30px;
}
.site-footer h3{color:#fff}
.footer-links{
  display:flex;
  gap:20px;
  flex-wrap:wrap;
}
.footer-links a{color:#e2e8f0}

.page-hero{
  padding:82px 0 46px;
  background:linear-gradient(180deg,#fff,#f5f7ff);
}
.page-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.content-section{
  padding:58px 0 90px;
}
.content-box{
  background:#fff;
  border:1px solid var(--line);
  border-radius:28px;
  padding:38px;
  box-shadow:0 16px 45px rgba(16,32,79,.06);
}
.content-box h2{font-size:32px;margin:26px 0 16px}
.content-box p,.content-box li{color:#475569}
.blog-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}

/* === Slider (schools + testimonials) === */
.slider-wrap{
  display:flex;
  align-items:center;
  gap:10px;
}
.slider-viewport{
  overflow:hidden;
  flex:1;
  min-width:0;
}
.slider-track{
  display:flex;
  transition:transform .45s cubic-bezier(.4,0,.2,1);
  will-change:transform;
}
.slider-btn{
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid var(--line);
  background:#fff;
  color:var(--navy);
  font-size:20px;
  cursor:pointer;
  flex-shrink:0;
  box-shadow:0 4px 14px rgba(16,32,79,.08);
  transition:.2s ease;
  display:flex;
  align-items:center;
  justify-content:center;
  line-height:1;
}
.slider-btn:hover{
  background:var(--blue);
  color:#fff;
  border-color:var(--blue);
  transform:none;
}
.slider-dots{
  display:flex;
  justify-content:center;
  gap:8px;
  margin-top:22px;
}
.slider-dot{
  width:8px;
  height:8px;
  border-radius:4px;
  background:var(--line);
  border:none;
  cursor:pointer;
  padding:0;
  transition:.3s ease;
}
.slider-dot.active{
  background:var(--blue);
  width:24px;
}

/* Schools items */
.schools-item{
  min-width:20%;
  flex-shrink:0;
  padding:8px;
  box-sizing:border-box;
}
.school-logo-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:18px 16px;
  display:flex;
  align-items:center;
  justify-content:center;
  height:80px;
  box-shadow:0 8px 24px rgba(16,32,79,.05);
  transition:.2s ease;
}
.school-logo-card:hover{
  box-shadow:0 14px 36px rgba(16,32,79,.11);
  transform:translateY(-2px);
}
.schools-item img{
  height:44px;
  width:100%;
  object-fit:contain;
  filter:grayscale(35%);
  opacity:.82;
  transition:.2s ease;
}
.schools-item:hover img{
  filter:grayscale(0%);
  opacity:1;
}

/* Testimonial items */
.testi-item{
  min-width:33.333%;
  flex-shrink:0;
  padding:0 10px;
  box-sizing:border-box;
}

/* === Testimonials === */
.testi-card{
  display:flex;
  flex-direction:column;
}
.testi-stars{
  color:#f59e0b;
  font-size:20px;
  margin-bottom:14px;
  letter-spacing:3px;
}
.testi-quote{
  color:var(--muted);
  font-style:italic;
  flex:1;
  margin:0 0 22px;
  line-height:1.75;
}
.testi-author{
  display:flex;
  align-items:center;
  gap:14px;
}
.testi-photo{
  width:50px;
  height:50px;
  border-radius:50%;
  object-fit:cover;
  flex-shrink:0;
  border:2px solid var(--line);
}
.testi-author-info strong{
  display:block;
  color:var(--navy);
  font-size:15px;
}
.testi-author-info span{
  font-size:13px;
  color:var(--muted);
}

/* === Excel farewell section === */
.excel-section{
  background:var(--navy);
  padding:90px 0;
}
.excel-intro{
  text-align:center;
  margin-bottom:56px;
}
.excel-eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:800;
  letter-spacing:2.5px;
  text-transform:uppercase;
  color:#60a5fa;
  margin-bottom:16px;
}
.excel-intro h2{
  color:#fff;
  margin-bottom:14px;
}
.excel-intro p{
  color:#94a3b8;
  font-size:17px;
  max-width:600px;
  margin:0 auto;
}
.excel-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
  margin-bottom:52px;
}
.excel-col{
  border-radius:var(--radius);
  padding:34px;
}
.excel-before{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
}
.excel-after{
  background:rgba(37,99,255,.15);
  border:1px solid rgba(37,99,255,.3);
}
.excel-col-label{
  font-size:12px;
  font-weight:800;
  letter-spacing:2px;
  text-transform:uppercase;
  margin-bottom:22px;
}
.excel-before .excel-col-label{color:#94a3b8}
.excel-after .excel-col-label{color:#60a5fa}
.excel-list{
  list-style:none;
  padding:0;
  margin:0;
}
.excel-list li{
  padding:11px 0;
  border-bottom:1px solid rgba(255,255,255,.07);
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:15px;
}
.excel-list li:last-child{border-bottom:none}
.excel-before .excel-list li{color:#94a3b8}
.excel-after .excel-list li{color:#e2e8f0}
.excel-before .excel-list li::before{content:"✕";color:#f87171;flex-shrink:0;font-weight:900}
.excel-after .excel-list li::before{content:"✓";color:#4ade80;flex-shrink:0;font-weight:900}
.excel-cta{
  text-align:center;
}

@media(max-width:980px){
  .container{width:min(100% - 28px, 1180px)}
  .mobile-toggle{
    display:inline-flex;
    border:0;
    background:#eef3ff;
    border-radius:12px;
    padding:10px 12px;
    color:var(--navy);
    font-weight:900;
  }
  .nav-links{
    display:none;
    position:absolute;
    left:14px;
    right:14px;
    top:76px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:20px;
    padding:18px;
    box-shadow:var(--shadow);
    flex-direction:column;
    align-items:flex-start;
  }
  .nav-links.open{display:flex}
  .hero{padding:44px 0 56px}
  .hero-grid,
  .showcase-grid,
  .contact-grid,
  .page-grid{
    grid-template-columns:1fr;
    gap:34px;
  }
  .hero-grid{display:flex;flex-direction:column}
  .hero-copy{order:1;text-align:center}
  .hero-media{order:2}
  h1{font-size:39px;letter-spacing:-1px}
  h2{font-size:32px}
  .lead{font-size:16px}
  .hero-actions,.trust-row{justify-content:center}
  .problem-grid,.module-grid,.deep-grid,.stats,.blog-grid{
    grid-template-columns:1fr;
  }
  .section{padding:58px 0}
  .cta{padding:34px 24px}
  .cta-grid{grid-template-columns:1fr;text-align:center}
  .footer-grid{grid-template-columns:1fr}
  .excel-grid{grid-template-columns:1fr}
  .slider-btn{width:36px;height:36px;font-size:16px}
}
@media(max-width:600px){
  .excel-section{padding:58px 0}
  .excel-col{padding:24px}
}

/* Social icons */
.footer-social{display:flex;gap:12px;margin-top:8px}
.footer-social a{color:#8892b0;transition:color .2s}
.footer-social a:hover{color:#fff}

/* FAQ */
.faq-list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{background:#f8f9ff;border-radius:14px;padding:24px 28px;border-left:4px solid var(--blue)}
.faq-item h3{font-size:18px;color:var(--navy);margin-bottom:8px}
.faq-item p{font-size:16px;color:#5d6785;line-height:1.7;margin:0}

/* Blog content */
.content-box h2{font-size:24px;color:var(--navy);margin:32px 0 12px}
.content-box p,.content-box li{font-size:17px;line-height:1.8;color:#3d4560}
.content-box ul{padding-left:20px;margin:12px 0 20px}
.content-box li{margin-bottom:6px}