/* AtlasEngine Software — optimized stylesheet */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0a0e1a;--bg2:#0f1626;--surface:#131c30;--line:#1f2b45;
  --txt:#e6ecf5;--muted:#9fb0c9;--cyan:#00e0ff;--blue:#3b82f6;--gold:#ffc83d;
  --grad:linear-gradient(120deg,#00e0ff,#3b82f6);--radius:16px;--max:1140px;
  font-family:"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.15;font-weight:800;letter-spacing:-.02em}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px}

/* Buttons */
.btn{display:inline-block;padding:14px 26px;border-radius:50px;font-weight:700;font-size:.98rem;transition:transform .2s,box-shadow .2s,background .2s;cursor:pointer;border:none}
.btn-primary{background:var(--grad);color:#04111f;box-shadow:0 8px 30px rgba(0,224,255,.25)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 40px rgba(0,224,255,.4)}
.btn-ghost{border:1px solid var(--line);color:var(--txt)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(10,14,26,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.18rem}
.brand-accent{color:var(--cyan)}
.nav-links{display:flex;gap:26px;list-style:none;align-items:center}
.nav-links a{color:var(--muted);font-weight:600;font-size:.95rem;transition:color .2s}
.nav-links a:hover{color:var(--txt)}
.nav-cta{background:var(--grad);color:#04111f!important;padding:9px 18px;border-radius:50px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.nav-toggle span{width:24px;height:2px;background:var(--txt);border-radius:2px}

/* Hero */
.hero{position:relative;padding:110px 0 90px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0;background:
  radial-gradient(60% 60% at 20% 10%,rgba(59,130,246,.22),transparent 60%),
  radial-gradient(50% 50% at 90% 20%,rgba(0,224,255,.18),transparent 55%),
  radial-gradient(40% 40% at 70% 90%,rgba(255,200,61,.10),transparent 60%)}
.hero-inner{position:relative;z-index:1;max-width:820px}
.hero-eyebrow{color:var(--cyan);font-weight:700;font-size:.9rem;letter-spacing:.04em;margin-bottom:18px}
.hero h1{font-size:clamp(2.1rem,5.5vw,3.7rem);background:linear-gradient(120deg,#fff,#9fc8ff);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:20px}
.hero-sub{font-size:1.12rem;color:var(--muted);max-width:660px;margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:42px}
.hero-stats{display:flex;gap:38px;list-style:none;flex-wrap:wrap;color:var(--muted);font-size:.92rem}
.hero-stats span{display:block;font-size:1.6rem;font-weight:800;color:var(--txt)}

/* Sections */
.section{padding:84px 0}
.section-alt{background:var(--bg2)}
.section-head{max-width:720px;margin:0 auto 50px;text-align:center}
.section-eyebrow{color:var(--cyan);font-weight:700;text-transform:uppercase;letter-spacing:.12em;font-size:.78rem;margin-bottom:12px}
.section-head h2{font-size:clamp(1.7rem,3.8vw,2.5rem);margin-bottom:14px}
.section-lead{color:var(--muted)}

/* Grids */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* Cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:transform .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-6px);border-color:var(--cyan);box-shadow:0 18px 50px rgba(0,0,0,.4)}
.card-icon{font-size:2rem;margin-bottom:16px}
.card h3{font-size:1.18rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.96rem}

/* Features */
.feature{padding:26px 22px;border-left:2px solid var(--line);transition:border-color .25s}
.feature:hover{border-color:var(--cyan)}
.feature-num{font-size:1.7rem;font-weight:800;color:var(--cyan);margin-bottom:10px;opacity:.85}
.feature h3{font-size:1.1rem;margin-bottom:8px}
.feature p{color:var(--muted);font-size:.94rem}

/* Tech */
.tech-grid{list-style:none;display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.tech{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);padding:12px 20px;border-radius:50px;font-weight:600;font-size:.95rem;transition:transform .2s,border-color .2s}
.tech:hover{transform:translateY(-4px);border-color:var(--cyan)}
.tech-dot{width:11px;height:11px;border-radius:50%;background:var(--c,#fff);box-shadow:0 0 10px var(--c,#fff)}

/* Portfolio */
.portfolio-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s,box-shadow .25s}
.portfolio-card:hover{transform:translateY(-6px);box-shadow:0 18px 50px rgba(0,0,0,.4)}
.portfolio-card img{width:100%;height:200px;object-fit:cover;background:linear-gradient(135deg,#16223a,#0f1626)}
.portfolio-body{padding:22px}
.tag{display:inline-block;background:rgba(0,224,255,.12);color:var(--cyan);font-size:.72rem;font-weight:700;padding:4px 12px;border-radius:50px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px}
.portfolio-body h3{font-size:1.1rem;margin-bottom:6px}
.portfolio-body p{color:var(--muted);font-size:.92rem}

/* Testimonials */
.quote{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.quote blockquote{color:var(--txt);font-style:italic;margin-bottom:18px}
.quote figcaption{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:.9rem}
.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--grad);color:#04111f;font-weight:800}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
.contact-list{list-style:none;margin:24px 0;display:grid;gap:14px}
.contact-list li{display:flex;align-items:center;gap:12px;font-size:1.02rem}
.contact-list a:hover{color:var(--cyan)}
.ci{font-size:1.2rem}
.map-wrap{margin-top:10px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.map-wrap iframe{width:100%;height:240px;border:0;display:block}
.contact-form{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px;display:grid;gap:16px}
.contact-form label{display:grid;gap:6px;font-size:.88rem;font-weight:600;color:var(--muted)}
.contact-form input,.contact-form select,.contact-form textarea{
  background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--txt);font:inherit;font-size:.95rem;transition:border-color .2s}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:none;border-color:var(--cyan)}
.form-note{font-size:.8rem;color:var(--muted)}
.form-note a{color:var(--cyan)}

/* Footer */
.site-footer{background:var(--bg2);border-top:1px solid var(--line);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
.footer-desc{color:var(--muted);font-size:.92rem;margin-top:12px;max-width:300px}
.site-footer h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;color:var(--cyan);margin-bottom:14px}
.site-footer ul{list-style:none;display:grid;gap:9px}
.site-footer a{color:var(--muted);font-size:.92rem}
.site-footer a:hover{color:var(--txt)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;border-top:1px solid var(--line);margin-top:46px;padding-top:22px;padding-bottom:26px;color:var(--muted);font-size:.85rem}
.footer-bottom a:hover{color:var(--cyan)}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* Responsive */
@media(max-width:900px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .nav-toggle{display:flex}
  .nav-links{position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:var(--bg2);border-bottom:1px solid var(--line);padding:0;max-height:0;overflow:hidden;transition:max-height .3s}
  .nav-links.open{max-height:340px;padding:10px 0}
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:13px 22px}
  .grid-3,.grid-4{grid-template-columns:1fr}
  .hero{padding:70px 0 60px}
  .hero-stats{gap:24px}
  .section{padding:60px 0}
}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ===== Blog ===== */
.blog-hero{padding:90px 0 30px;position:relative;background:
  radial-gradient(60% 60% at 20% 0%,rgba(59,130,246,.18),transparent 60%),
  radial-gradient(50% 50% at 90% 10%,rgba(0,224,255,.14),transparent 55%)}
.blog-hero h1{font-size:clamp(1.9rem,4.5vw,3rem);margin:14px 0;max-width:820px}
.blog-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s,border-color .25s,box-shadow .25s}
.blog-card:hover{transform:translateY(-6px);border-color:var(--cyan);box-shadow:0 18px 50px rgba(0,0,0,.4)}
.blog-card-link{display:block;padding:26px}
.blog-card h2{font-size:1.15rem;margin:10px 0;line-height:1.3}
.blog-card p{color:var(--muted);font-size:.92rem;margin-bottom:14px}
.read-more{color:var(--cyan);font-weight:700;font-size:.9rem}

/* Single post */
.post-main{padding-top:30px}
.post{max-width:760px;padding-top:24px;padding-bottom:40px}
.breadcrumb{font-size:.82rem;color:var(--muted);margin-bottom:18px}
.breadcrumb a{color:var(--cyan)}
.breadcrumb span{margin:0 6px;opacity:.6}
.post h1{font-size:clamp(1.7rem,4vw,2.6rem);margin:14px 0}
.post-meta{color:var(--muted);font-size:.85rem;margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.post-body{font-size:1.05rem;line-height:1.8}
.post-body h2{font-size:1.4rem;margin:34px 0 12px;color:var(--txt)}
.post-body p{margin-bottom:16px;color:#cdd8ea}
.post-body ul,.post-body ol{margin:0 0 18px 22px;color:#cdd8ea}
.post-body li{margin-bottom:8px}
.post-body strong{color:var(--txt)}
.cta-box{background:linear-gradient(120deg,rgba(0,224,255,.1),rgba(59,130,246,.1));border:1px solid var(--line);border-radius:var(--radius);padding:32px;margin:40px 0 30px;text-align:center}
.cta-box h2{font-size:1.4rem;margin-bottom:10px}
.cta-box p{color:var(--muted);margin-bottom:20px}
.related{margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.related h2{font-size:1.3rem;margin-bottom:14px}
.related ul{list-style:none;display:grid;gap:10px}
.related a{color:var(--cyan);font-weight:600}
.related a:hover{text-decoration:underline}