/* Sineth Computers - theme matched to climatrixeng.com
   Fonts: Barlow Condensed (headings, buttons) + Work Sans (body, menu)
   Colours: red #e10b17, navy #00008b, charcoal #1b1d22 */
:root{
  --red:#e10b17;
  --btn:#00008b;
  --btn-hover:#e10b17;
  --dark:#1b1d22;
  --bg:#ffffff;
  --bg-alt:#f4f5f7;
  --card:#ffffff;
  --ink:#16181d;
  --muted:#5f6672;
  --line:#e4e6eb;
  --head:'Barlow Condensed','Arial Narrow',sans-serif;
  --body:'Work Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --shadow:0 10px 30px rgba(0,0,0,.08);
}
[data-theme="dark"]{
  --btn:#3434c9;
  --bg:#12151b;
  --bg-alt:#181c24;
  --card:#1d222b;
  --ink:#e8ebf0;
  --muted:#a3abb8;
  --line:#2a303b;
  --shadow:0 10px 30px rgba(0,0,0,.4);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{font-family:var(--body);color:var(--ink);background:var(--bg);line-height:1.7;transition:background .3s,color .3s}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{width:min(1240px,92%);margin-inline:auto}
h1,h2,h3,h4{font-family:var(--head);text-transform:uppercase;line-height:1.1;font-weight:700;letter-spacing:.3px}

/* Buttons: square, navy, condensed uppercase */
.btn{display:inline-block;padding:14px 30px;background:var(--btn);color:#fff;font-family:var(--head);font-weight:700;font-size:1rem;letter-spacing:1px;text-transform:uppercase;border:0;cursor:pointer;transition:.25s}
.btn:hover{background:var(--btn-hover);color:#fff}
.btn-outline{background:transparent;color:var(--ink);border:2px solid var(--ink)}
.btn-outline:hover{background:var(--btn);border-color:var(--btn);color:#fff}

/* Header */
.topbar{background:var(--dark);color:#c9ced8;font-size:.82rem}
.topbar .container{display:flex;justify-content:space-between;gap:12px;padding:8px 0;flex-wrap:wrap}
.topbar a:hover{color:#fff}
header{position:sticky;top:0;z-index:50;background:var(--bg);box-shadow:0 2px 14px rgba(0,0,0,.08);transition:background .3s}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:100px;gap:20px}
.logo img{height:72px;width:auto}
nav ul{display:flex;gap:38px;align-items:center}
nav a{font-weight:600;font-size:.95rem;letter-spacing:.8px;text-transform:uppercase;transition:color .2s}
nav a:hover,nav a.active{color:var(--red)}
.nav-spacer{width:72px}
.menu-toggle{display:none;background:none;border:0;font-size:1.9rem;color:var(--ink);cursor:pointer}

/* Hero slider (dark) */
.hero{position:relative;background:var(--dark);color:#fff;overflow:hidden}
.hero-slide{display:none;grid-template-columns:1.15fr 1fr;align-items:center;gap:40px;min-height:520px;padding:50px 0}
.hero-slide.active{display:grid;animation:fade .7s both}
@keyframes fade{from{opacity:0;transform:translateX(18px)}to{opacity:1;transform:none}}
.hero .pic img{width:100%;max-height:420px;object-fit:contain}
.hero .sub{font-size:1.05rem;letter-spacing:1.5px;text-transform:uppercase;color:#e6e8ee;margin-bottom:14px}
.hero h1,.hero h2{font-size:clamp(2.4rem,5.2vw,4.4rem);color:#fff;margin-bottom:28px;font-weight:600}
.arrow{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;border:0;background:#7a7d83;color:#111;font-size:1.1rem;cursor:pointer;z-index:5;transition:.25s}
.arrow:hover{background:var(--red);color:#fff}
.arrow.prev{left:26px}
.arrow.next{right:26px}
.dots{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.dots button{width:10px;height:10px;border-radius:50%;border:0;background:#6a6e76;cursor:pointer}
.dots button.active{background:var(--red)}

/* Sections */
section{padding:84px 0}
.alt{background:var(--bg-alt)}
.section-head{text-align:center;max-width:720px;margin:0 auto 50px}
.eyebrow{display:block;color:var(--red);font-family:var(--head);font-weight:700;letter-spacing:3px;font-size:1rem;text-transform:uppercase}
.section-head h2{font-size:clamp(2rem,4vw,3rem);margin:6px 0 12px}
.section-head p{color:var(--muted)}

/* Service cards */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card{background:var(--card);padding:38px 30px;border:1px solid var(--line);border-bottom:4px solid var(--btn);box-shadow:var(--shadow);transition:.3s}
.card:hover{transform:translateY(-8px);border-bottom-color:var(--red)}
.card .icon{font-size:2.2rem;margin-bottom:14px}
.card h3{font-size:1.5rem;margin-bottom:12px}
.card p{color:var(--muted);font-size:.95rem;margin-bottom:18px}
.more{font-family:var(--head);font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--red)}
.more:hover{color:var(--btn)}

/* Banner with image */
.banner{position:relative;color:#fff;text-align:center;padding:110px 0;background:var(--dark) url('../images/111.jpg') center/cover no-repeat}
.banner::before{content:"";position:absolute;inset:0;background:rgba(10,12,20,.72)}
.banner .container{position:relative}
.banner .sub{font-family:var(--head);letter-spacing:4px;font-weight:600;color:#ff5a63;margin-bottom:10px}
.banner h2{font-size:clamp(2rem,4.6vw,3.6rem);max-width:900px;margin:0 auto 28px;color:#fff}

/* About */
.about{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.about img{width:100%;max-height:380px;object-fit:cover;box-shadow:var(--shadow)}
.about h2{font-size:clamp(2rem,4vw,3rem);margin-bottom:16px}
.about p{color:var(--muted);margin-bottom:16px}

/* Training */
.programs{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.program{display:flex;align-items:center;gap:16px;background:var(--card);border:1px solid var(--line);border-left:4px solid var(--red);padding:22px;box-shadow:var(--shadow);font-family:var(--head);font-weight:700;font-size:1.3rem;text-transform:uppercase;letter-spacing:.5px}
.program span{font-size:1.7rem}

/* Software posts */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.post{background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);display:flex;flex-direction:column;transition:.3s}
.post:hover{transform:translateY(-8px)}
.post img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--bg-alt)}
.post .body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:8px;flex:1}
.post .tag{font-family:var(--head);font-weight:700;font-size:.9rem;color:var(--red);text-transform:uppercase;letter-spacing:2px}
.post h3{font-size:1.45rem}
.post p{color:var(--muted);font-size:.94rem;flex:1}
.post .btn{align-self:flex-start;margin-top:8px;padding:10px 24px}

/* CTA band */
.cta-band{background:var(--btn);color:#fff;text-align:center}
.cta-band h2{font-size:clamp(2rem,4vw,3rem);margin-bottom:10px;color:#fff}
.cta-band p{opacity:.92;margin-bottom:26px}
.cta-band .btn{background:#fff;color:var(--btn)}
.cta-band .btn:hover{background:var(--red);color:#fff}

/* Inner page title */
.page-title{background:var(--dark);color:#fff;padding:54px 0}
.page-title .container{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.page-title h1{font-size:clamp(2.2rem,4.4vw,3.4rem);color:#fff}
.page-title a.call{font-family:var(--head);font-size:1.3rem;font-weight:600;letter-spacing:1px;color:#ff5a63}

/* Contact */
.map{width:100%;height:400px;border:0;box-shadow:var(--shadow)}
.contact-wrap{display:grid;grid-template-columns:2fr 1fr;gap:44px;align-items:start;margin-top:44px}
.contact-wrap h2{font-size:2rem;margin-bottom:18px}
form{display:grid;gap:16px;background:var(--bg-alt);padding:32px;border:1px solid var(--line)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.6px;display:block;margin-bottom:4px}
input,textarea{width:100%;padding:14px 16px;border:1px solid var(--line);font:inherit;background:var(--card);color:var(--ink)}
input:focus,textarea:focus{outline:2px solid var(--btn);border-color:transparent}
.form-msg{display:none;padding:14px 18px;font-size:.95rem}
.form-msg.ok{display:block;background:#e6f6ec;color:#176b3a}
.form-msg.err{display:block;background:#fdecea;color:#a12622}
.info li{margin-bottom:18px;color:var(--muted)}
.info b{display:block;color:var(--ink);font-family:var(--head);font-size:1.15rem;text-transform:uppercase;letter-spacing:.5px}
.info a:hover{color:var(--red)}

/* Footer */
footer{background:var(--dark);color:#aeb4c0;padding:64px 0 22px;font-size:.93rem}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:34px;margin-bottom:34px}
footer img{height:60px;width:auto;margin-bottom:14px}
footer h2{color:#fff;font-size:1.3rem;margin-bottom:14px}
footer li{margin-bottom:9px}
footer a:hover{color:#fff}
.copy{text-align:center;border-top:1px solid #2c303a;padding-top:20px;font-size:.84rem}

/* Floating: theme switch + WhatsApp */
.theme-toggle{position:fixed;left:18px;bottom:18px;z-index:60;display:flex;align-items:center;gap:6px;padding:6px;border:0;border-radius:40px;background:#2b3345;cursor:pointer;box-shadow:0 6px 18px rgba(0,0,0,.3)}
.theme-toggle span{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-size:.95rem;color:#cfd6e4}
[data-theme="light"] .theme-toggle .t-sun,:root:not([data-theme]) .theme-toggle .t-sun,[data-theme="dark"] .theme-toggle .t-moon{background:#fff;color:#222}
.whatsapp{position:fixed;right:18px;bottom:18px;z-index:60;width:52px;height:52px;border-radius:50%;background:#25d366;display:grid;place-items:center;box-shadow:0 6px 18px rgba(0,0,0,.3);transition:.25s}
.whatsapp:hover{transform:scale(1.08)}
.whatsapp svg{width:30px;height:30px;fill:#fff}

/* Responsive */
@media (max-width:1000px){
  .grid-3,.programs,.posts{grid-template-columns:repeat(2,1fr)}
  .contact-wrap,.about{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  nav ul{gap:24px}
}
@media (max-width:860px){
  .menu-toggle{display:block}
  .nav-spacer{display:none}
  nav{position:absolute;top:100%;left:0;right:0;background:var(--bg);box-shadow:0 12px 20px rgba(0,0,0,.12);max-height:0;overflow:hidden;transition:max-height .35s}
  nav.open{max-height:420px}
  nav ul{flex-direction:column;padding:18px 0;gap:18px}
  .hero-slide{grid-template-columns:1fr;text-align:center;min-height:0;padding:36px 0 60px}
  .hero-slide .pic{order:-1}
  .arrow{display:none}
}
@media (max-width:560px){
  .grid-3,.programs,.posts,.row2,.foot-grid{grid-template-columns:1fr}
  .topbar .container{justify-content:center;text-align:center}
  .logo img{height:56px}
  section{padding:60px 0}
}