/* ==========================================================================
   Cyber Security Teachers — Main Stylesheet
   ========================================================================== */

:root{
  --navy:#0a1d38;
  --navy-2:#0f2a4d;
  --navy-3:#132f56;
  --orange:#f36a1d;
  --orange-2:#ff8a3d;
  --text:#1b2a41;
  --muted:#5d6b80;
  --line:#e3e8ef;
  --soft:#f5f8fc;
  --white:#fff;
  --radius:14px;
  --shadow:0 10px 30px rgba(10,29,56,.08);
  --shadow-lg:0 24px 60px rgba(10,29,56,.16);
  --container:1200px;
  --font:"DM Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--white);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
h1,h2,h3,h4{line-height:1.2;color:var(--navy);font-weight:700}
h1{font-size:clamp(2rem,4.4vw,3.4rem)}
h2{font-size:clamp(1.6rem,3vw,2.4rem)}
h3{font-size:1.2rem}
p{margin-bottom:1rem}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:76px 0}
.section.soft{background:var(--soft)}
.center{text-align:center}
.eyebrow{display:inline-block;color:var(--orange);font-weight:700;letter-spacing:.16em;text-transform:uppercase;font-size:.78rem;margin-bottom:10px}
.lead{color:var(--muted);font-size:1.05rem;max-width:720px}
.center .lead{margin-left:auto;margin-right:auto}
.sec-head{margin-bottom:40px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;border:2px solid transparent;cursor:pointer;transition:.25s;font-family:var(--font)}
.btn-primary{background:linear-gradient(135deg,var(--orange),var(--orange-2));color:#fff;box-shadow:0 10px 24px rgba(243,106,29,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(243,106,29,.45)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-outline{border-color:var(--navy);color:var(--navy)}
.btn-outline:hover{background:var(--navy);color:#fff}
.btn-block{width:100%}

/* Topbar */
.topbar{background:var(--navy);color:#cfe0f5;font-size:.85rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;padding-top:9px;padding-bottom:9px}
.topbar a:hover{color:var(--orange-2)}
.topbar-right{display:flex;gap:22px;flex-wrap:wrap}

/* Header */
.header{position:sticky;top:0;z-index:200;background:#fff;box-shadow:0 2px 18px rgba(10,29,56,.07)}
.header .container{display:flex;align-items:center;justify-content:space-between;gap:20px;height:78px}
.logo img{height:46px;width:auto}
.nav{display:flex;align-items:center;gap:30px}
.nav a{font-weight:600;font-size:.96rem;color:var(--navy);padding:6px 0;position:relative}
.nav a:hover,.nav a.active{color:var(--orange)}
.nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--orange)}
.has-drop{position:relative}
.has-drop>button{background:none;border:0;font:inherit;font-weight:600;color:var(--navy);cursor:pointer;display:flex;align-items:center;gap:6px}
.has-drop>button:hover{color:var(--orange)}
.drop{position:absolute;top:130%;left:-16px;background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);min-width:290px;padding:10px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s}
.has-drop:hover .drop,.has-drop.open .drop{opacity:1;visibility:visible;transform:translateY(0)}
.drop a{display:block;padding:10px 14px;border-radius:8px;font-size:.92rem}
.drop a:hover{background:var(--soft)}
.burger{display:none;background:none;border:0;font-size:1.6rem;color:var(--navy);cursor:pointer}

/* Hero slider */
.hero{position:relative;background:var(--navy);overflow:hidden}
.slider{position:relative;min-height:640px}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .9s ease;pointer-events:none}
.slide.active{opacity:1;pointer-events:auto}
.slide-bg{position:absolute;inset:0}
.slide-bg img{width:100%;height:100%;object-fit:cover}
.slide-bg:after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,22,44,.94) 0%,rgba(8,22,44,.86) 45%,rgba(8,22,44,.55) 100%)}
.slide-inner{position:relative;z-index:2;display:flex;align-items:center;min-height:640px;padding:70px 0}
.slide-copy{max-width:640px;color:#fff}
.slide-copy h1,.slide-copy h2{color:#fff}
.badge{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.28);color:#fff;border-radius:999px;padding:7px 16px;font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700;margin-bottom:20px}
.slide-copy p{color:#cfdcee;font-size:1.06rem;max-width:560px}
.slide-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.orange{color:var(--orange-2)}
.slider-nav{position:absolute;bottom:28px;left:0;right:0;z-index:5}
.slider-nav .container{display:flex;align-items:center;gap:14px}
.dots{display:flex;gap:10px}
.dot{width:34px;height:5px;border-radius:99px;background:rgba(255,255,255,.32);border:0;cursor:pointer;transition:.3s}
.dot.active{background:var(--orange);width:52px}
.arrows{margin-left:auto;display:flex;gap:10px}
.arrow{width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.06);color:#fff;font-size:1.1rem;cursor:pointer;transition:.25s;display:flex;align-items:center;justify-content:center}
.arrow:hover{background:var(--orange);border-color:var(--orange)}

/* Stats */
.stats{background:var(--navy-2);color:#fff}
.stats .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:34px 0;text-align:center}
.stat b{display:block;font-size:2rem;color:var(--orange-2)}
.stat span{font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:#bccfe6}

/* Cards / grids */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.28s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:.95rem;margin-bottom:0}
.icon{width:48px;height:48px;border-radius:12px;background:rgba(243,106,29,.12);color:var(--orange);display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:16px}
.course-card{overflow:hidden;padding:0;display:flex;flex-direction:column}
.course-card .thumb{aspect-ratio:16/10;overflow:hidden}
.course-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.course-card:hover .thumb img{transform:scale(1.07)}
.course-card .body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.more{color:var(--orange);font-weight:700;font-size:.92rem;margin-top:auto}

/* Lists */
.ticks li,.list li{position:relative;padding-left:30px;margin-bottom:12px;color:var(--muted)}
.ticks li:before,.list li:before{content:"✓";position:absolute;left:0;top:0;color:var(--orange);font-weight:700}
.list.dots li:before{content:"●";font-size:.6rem;top:5px}
.pill-list{display:flex;flex-wrap:wrap;gap:10px}
.pill{background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:9px 18px;font-size:.9rem;font-weight:600;color:var(--navy)}

/* Form */
.form-card{background:#fff;border-radius:18px;padding:30px;box-shadow:var(--shadow-lg)}
.field{margin-bottom:14px}
.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px;color:var(--navy)}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-family:var(--font);font-size:.95rem;background:#fff;color:var(--text)}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid rgba(243,106,29,.35);border-color:var(--orange)}
.field textarea{min-height:110px;resize:vertical}
.two-col{display:grid;grid-template-columns:130px 1fr;gap:10px}
.form-note{font-size:.78rem;color:var(--muted);margin:10px 0 0}
.form-msg{display:none;margin-top:12px;padding:12px 14px;border-radius:10px;font-size:.9rem}
.form-msg.ok{display:block;background:#e7f7ed;color:#166534}
.form-msg.err{display:block;background:#fdecec;color:#a62121}

/* Testimonial slider */
.tslider{position:relative;overflow:hidden}
.ttrack{display:flex;transition:transform .6s cubic-bezier(.4,0,.2,1)}
.tslide{min-width:33.3333%;padding:0 13px;box-sizing:border-box}
.tcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;height:100%;display:flex;flex-direction:column;gap:14px}
.stars{color:#f5a623;letter-spacing:2px}
.tcard p{color:var(--muted);font-size:.95rem;flex:1}
.tperson{display:flex;align-items:center;gap:12px}
.avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--orange),var(--orange-2));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.tperson b{display:block;color:var(--navy);font-size:.95rem}
.tperson span{font-size:.8rem;color:var(--muted)}
.tnav{display:flex;justify-content:center;align-items:center;gap:12px;margin-top:28px}
.tnav .arrow{border-color:var(--line);background:#fff;color:var(--navy)}
.tnav .arrow:hover{background:var(--orange);color:#fff;border-color:var(--orange)}
.tnav .dot{background:#cfd8e4}
.tnav .dot.active{background:var(--orange)}

/* Logos strip */
.marquee{overflow:hidden}
.marquee-track{display:flex;gap:52px;animation:scroll 26s linear infinite;width:max-content}
.marquee-track span{font-weight:700;color:#94a3b8;font-size:1.1rem;white-space:nowrap}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* Page hero */
.page-hero{background:var(--navy);color:#fff;padding:70px 0;position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(243,106,29,.28),transparent 55%)}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{color:#fff;max-width:900px}
.page-hero p{color:#c6d6ea;max-width:760px;margin-top:12px}
.crumb{font-size:.85rem;color:#9fb6d2;margin-bottom:14px}
.crumb a:hover{color:var(--orange-2)}

/* Content typography */
.prose h2{margin:34px 0 14px}
.prose h3{margin:24px 0 10px;color:var(--navy)}
.prose p{color:#42536b}
.prose ul{margin:0 0 18px}
.prose li{position:relative;padding-left:26px;margin-bottom:10px;color:#42536b}
.prose li:before{content:"▸";position:absolute;left:0;color:var(--orange);font-weight:700}
.prose ol{padding-left:20px;margin-bottom:18px;color:#42536b}
.prose ol li{padding-left:6px}
.prose ol li:before{content:none}
.prose img{border-radius:var(--radius);margin:22px 0}
.layout{display:grid;grid-template-columns:1fr 360px;gap:44px;align-items:start}
.sticky{position:sticky;top:100px}
.side-card{background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:22px}
.side-card h3{margin-bottom:12px}
.side-card a.side-link{display:block;padding:10px 0;border-bottom:1px dashed var(--line);font-weight:600;font-size:.93rem}
.side-card a.side-link:last-child{border:0}
.side-card a.side-link:hover{color:var(--orange)}

/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:#fff;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:0;padding:18px 22px;font:inherit;font-weight:700;color:var(--navy);cursor:pointer;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq-q span{color:var(--orange);font-size:1.3rem;line-height:1;transition:.25s}
.faq-item.open .faq-q span{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 18px;color:var(--muted);margin:0}

/* Blog */
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.28s}
.post-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.post-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.post-card .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--orange)}
.post-card h3{font-size:1.08rem}
.post-card p{color:var(--muted);font-size:.9rem;margin:0}
.meta{font-size:.8rem;color:#8794a7;margin-top:auto}

/* CTA band */
.cta{background:linear-gradient(120deg,var(--navy) 0%,var(--navy-3) 100%);color:#fff;text-align:center;padding:66px 0;position:relative;overflow:hidden}
.cta:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 120%,rgba(243,106,29,.35),transparent 60%)}
.cta .container{position:relative;z-index:2}
.cta h2{color:#fff;margin-bottom:10px}
.cta p{color:#c6d6ea;max-width:640px;margin:0 auto 24px}

/* Footer */
.footer{background:var(--navy);color:#b9cbe2;padding:64px 0 0;font-size:.93rem}
.footer h4{color:#fff;font-size:1rem;margin-bottom:16px}
.footer .grid{display:grid;grid-template-columns:1.6fr 1fr 1.4fr;gap:40px}
.footer a:hover{color:var(--orange-2)}
.footer li{margin-bottom:10px}
.footer .logo img{height:46px;background:#fff;border-radius:8px;padding:4px;margin-bottom:16px}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:20px 0;text-align:center;font-size:.85rem;color:#8ba4c2}

/* Floating buttons */
.floats{position:fixed;right:18px;bottom:18px;z-index:300;display:flex;flex-direction:column;gap:12px}
.float{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:var(--shadow-lg);font-size:1.25rem;transition:.25s}
.float:hover{transform:scale(1.08)}
.float.wa{background:#25d366}
.float.call{background:var(--orange)}

/* Responsive */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .layout{grid-template-columns:1fr}
  .tslide{min-width:50%}
  .footer .grid{grid-template-columns:1fr 1fr}
}
@media(max-width:820px){
  .burger{display:block}
  .nav{position:fixed;inset:0 0 0 auto;width:280px;background:#fff;flex-direction:column;align-items:flex-start;padding:90px 24px;gap:6px;transform:translateX(100%);transition:.3s;box-shadow:var(--shadow-lg);overflow-y:auto}
  .nav.open{transform:translateX(0)}
  .nav a,.has-drop>button{width:100%;padding:12px 0;border-bottom:1px solid var(--line)}
  .drop{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;padding:0 0 0 10px;display:none}
  .has-drop.open .drop{display:block}
  .grid-2,.grid-3,.grid-4,.stats .grid{grid-template-columns:1fr}
  .stats .grid{grid-template-columns:1fr 1fr}
  .tslide{min-width:100%}
  .slider,.slide-inner{min-height:560px}
  .footer .grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .topbar-right{gap:14px}
}

/* Image banner slider (home) */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.hero-banner{background:#f4f6fa}
.hero-banner .slider{min-height:0;aspect-ratio:1600/608}
.hero-banner .slide{position:absolute;inset:0}
.hero-banner .slide img{width:100%;height:100%;object-fit:cover;display:block}
.hero-banner .slider-nav{bottom:16px}
.hero-banner .dot{background:rgba(8,22,44,.25)}
.hero-banner .dot.active{background:var(--orange)}
.hero-banner .arrow{background:rgba(255,255,255,.82);border-color:rgba(8,22,44,.15);color:var(--navy)}
.hero-banner .arrow:hover{background:var(--orange);color:#fff;border-color:var(--orange)}
@media(max-width:640px){.hero-banner .slider{aspect-ratio:1600/760}.hero-banner .slider-nav{bottom:8px}}
.course-card .thumb{aspect-ratio:1600/608}
.prose img{width:100%;height:auto;display:block}


/* Footer social media icons */
.footer-social {
  margin-top: 24px;
}
.footer-social h4 {
  margin-bottom: 12px;
}
.social-icons {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.social-icons a {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  transition: transform .2s ease, opacity .2s ease, box-shadow .2s ease;
}
.social-icons a:hover {
  transform: translateY(-3px);
  opacity: .92;
  box-shadow: 0 7px 18px rgba(0,0,0,.18);
}
.social-icons svg {
  width: 21px;
  height: 21px;
  fill: currentColor;
}
.social-youtube { background: #ff0000; }
.social-linkedin { background: #0a66c2; }
.social-x { background: #111; }
.social-instagram {
  background: linear-gradient(135deg,#833ab4,#fd1d1d,#fcb045);
}
.social-facebook { background: #1877f2; }

@media (max-width: 480px) {
  .social-icons a {
    width: 40px;
    height: 40px;
  }
}

/* Course-page brochure and video banner */
.course-hero-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(360px,.8fr);gap:48px;align-items:center}
.course-hero-copy{min-width:0}
.course-video{position:relative;aspect-ratio:16/9;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius);overflow:hidden;background:#050b14;box-shadow:var(--shadow-lg)}
.course-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.btn-download{background:#fff;color:var(--navy);border:2px solid #fff}
.btn-download:hover{background:var(--orange);border-color:var(--orange);color:#fff;transform:translateY(-2px)}
@media(max-width:980px){.course-hero-grid{grid-template-columns:1fr;gap:30px}.course-video{width:100%;max-width:720px}}
@media(max-width:640px){.course-hero-grid{gap:24px}.course-video{min-height:210px}.course-hero .slide-actions{align-items:stretch}.course-hero .slide-actions .btn{width:100%;text-align:center}}