/*
Theme Name: ITStack Professional
Theme URI: https://itstack.in/
Author: ITStack
Description: Professional WordPress theme for ITStack.in — Data Center, Networking, Cybersecurity, Technical Presales and AI for IT.
Version: 1.0.0
License: GPL-2.0-or-later
Text Domain: itstack
*/
:root{--navy:#0b1736;--blue:#1677ff;--cyan:#16b9c8;--ink:#172033;--muted:#5f6b7a;--light:#f5f8fc;--white:#fff;--line:#e5eaf1;--radius:16px;--shadow:0 12px 32px rgba(11,23,54,.08)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.65}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
.container{width:min(1160px,92%);margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:74px;gap:24px}
.brand{font-size:25px;font-weight:800;letter-spacing:-.5px;color:var(--navy)}
.brand span{color:var(--blue)}
.main-nav{display:flex;align-items:center;gap:22px;font-size:14px;font-weight:650}
.main-nav a:hover{color:var(--blue)}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 11px;font-size:18px}
.hero{background:linear-gradient(135deg,var(--navy),#102a58 60%,#0b5670);color:#fff;padding:92px 0 86px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:center}
.eyebrow{display:inline-block;text-transform:uppercase;letter-spacing:1.5px;font-size:12px;font-weight:800;color:#8ee8ef;margin-bottom:12px}
.hero h1{font-size:clamp(38px,5vw,62px);line-height:1.05;margin:0 0 20px;letter-spacing:-1.5px}
.hero p{font-size:19px;color:#d9e5f5;max-width:680px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-block;padding:12px 19px;border-radius:10px;font-weight:750;border:1px solid transparent}
.btn-primary{background:#fff;color:var(--navy)}
.btn-secondary{border-color:rgba(255,255,255,.35);color:#fff}
.btn-blue{background:var(--blue);color:#fff}
.hero-card{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);padding:28px;border-radius:20px;box-shadow:0 20px 50px rgba(0,0,0,.12)}
.hero-card h3{margin-top:0}
.hero-card ul{margin:0;padding-left:20px;color:#d9e5f5}
.section{padding:72px 0}
.section.alt{background:var(--light)}
.section-title{text-align:center;max-width:760px;margin:0 auto 36px}
.section-title h2{font-size:34px;line-height:1.15;margin:0 0 12px;color:var(--navy)}
.section-title p{color:var(--muted);margin:0}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:var(--shadow)}
.card h3{margin:0 0 8px;color:var(--navy)}
.card p{color:var(--muted);margin:0 0 15px}
.card a{color:var(--blue);font-weight:750}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-top:34px}
.stat{padding:22px;border:1px solid var(--line);border-radius:14px;background:#fff;text-align:center}
.stat strong{display:block;font-size:28px;color:var(--navy)}
.stat span{font-size:13px;color:var(--muted)}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff}
.post-card .post-body{padding:20px}
.post-card h3{font-size:19px;line-height:1.3;margin:0 0 8px}
.post-meta{font-size:12px;color:var(--muted)}
.cta{background:linear-gradient(135deg,#eef6ff,#eafafa);border:1px solid #dcecff;border-radius:22px;padding:42px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.cta h2{margin:0;color:var(--navy)}
.site-footer{background:#08132c;color:#c9d4e5;padding:52px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:30px}
.site-footer h3{color:#fff;margin-top:0}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:35px;padding-top:20px;font-size:13px;color:#8fa0b9}
.single-wrap{padding:65px 0}
.content{max-width:820px;margin:auto}
.content h1{font-size:42px;line-height:1.15;color:var(--navy)}
.content h2,.content h3{color:var(--navy)}
.content p,.content li{color:#3f4b5b}
.content img{border-radius:14px}
.archive-header{padding:55px 0 25px;background:var(--light)}
.archive-header h1{color:var(--navy);font-size:40px;margin:0}
.pagination{margin-top:35px}
.widget-area{margin-top:35px}
.screen-reader-text{position:absolute;left:-9999px}
@media(max-width:900px){
 .main-nav{display:none;position:absolute;left:0;right:0;top:74px;background:#fff;padding:18px 4%;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start}
 .main-nav.open{display:flex}
 .menu-toggle{display:block}
 .hero-grid{grid-template-columns:1fr}
 .cards,.post-grid{grid-template-columns:1fr 1fr}
 .stats{grid-template-columns:1fr 1fr}
 .footer-grid{grid-template-columns:1fr 1fr}
 .cta{flex-direction:column;align-items:flex-start}
}
@media(max-width:600px){
 .hero{padding:64px 0}
 .section{padding:52px 0}
 .cards,.post-grid,.stats,.footer-grid{grid-template-columns:1fr}
 .hero h1{font-size:42px}
 .content h1{font-size:34px}
}