/* cuacongtudong.net.vn – AG Automation */
:root{--ink:#1F2A33;--ink2:#4A5560;--paper:#F4F2EE;--card:#fff;--line:#DEDAD2;--accent:#F2A93B;--accent-ink:#92400E;--dark2:#2B3843;--soft:#E9E5DD}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Be Vietnam Pro',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--paper);font-size:17px;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-ink)}a:hover{color:#B45309}
h1,h2,h3{line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(30px,4.6vw,50px);font-weight:800}
h2{font-size:clamp(25px,3vw,34px);font-weight:800}
h3{font-size:20px;font-weight:700}
p{margin:0 0 1em}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px;background:#fff;padding:8px;z-index:99}
/* header */
.topbar{background:#161E25;color:#C9CED3;font-size:14px}
.topbar .wrap{display:flex;flex-wrap:wrap;gap:6px 22px;justify-content:space-between;padding-top:6px;padding-bottom:6px}
.topbar a{color:#C9CED3;text-decoration:none}
@media (max-width:700px){.topbar .wrap>span:first-child{display:none}}
header.site{background:var(--ink);color:var(--paper);position:sticky;top:0;z-index:50}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--paper)}
.brand .mk{width:44px;height:44px;border-radius:8px;background:var(--accent);color:var(--ink);display:flex;align-items:center;justify-content:center;font-weight:800}
.brand{white-space:nowrap}.brand b{display:block;font-size:17px;letter-spacing:.3px}.brand small{color:#C9CED3;font-size:12px}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;gap:2px;flex-wrap:nowrap}
nav.main a{color:var(--paper);text-decoration:none;font-weight:500;font-size:14.5px;padding:10px 8px;white-space:nowrap;border-radius:6px;display:block}
nav.main a:hover,nav.main a[aria-current=page]{background:#33414C;color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 20px;border-radius:8px;font-weight:700;text-decoration:none;border:0;cursor:pointer;font-size:16px;font-family:inherit}
.btn-accent{background:var(--accent);color:var(--ink)}.btn-accent:hover{background:#E59A26;color:var(--ink)}
.btn-ghost{border:2px solid currentColor;color:var(--paper);background:transparent}
.btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{background:#33414C;color:#fff}
.menu-toggle{display:none}
header.site .call{white-space:nowrap}
@media (max-width:480px){.brand small{display:none}.brand b{font-size:16px}header.site .wrap{gap:8px}}
@media (max-width:1180px){
 nav.main{display:none;position:absolute;left:0;right:0;top:100%;background:var(--ink);border-top:1px solid #33414C}
 nav.main.open{display:block}
 nav.main ul{flex-direction:column;padding:10px 20px 16px}
 .menu-toggle{display:inline-flex;background:transparent;color:var(--paper);border:1px solid #56636E}
 header.site .call{display:none}
}
/* hero */
.hero{background:var(--ink);color:var(--paper)}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;padding-top:60px;padding-bottom:64px}
.hero p.lead{font-size:19px;color:#D7DBDF}
.eyebrow{font-size:14px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;color:var(--accent)}
.hero img{border-radius:14px;aspect-ratio:4/3;object-fit:cover;width:100%}
.ticks{display:flex;flex-wrap:wrap;gap:10px 24px;list-style:none;padding:0;margin:20px 0 0;color:#D7DBDF;font-size:15px}
.ticks li::before{content:"✓";color:var(--accent);font-weight:800;margin-right:8px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
@media (max-width:900px){.hero .wrap{grid-template-columns:minmax(0,1fr)}}
/* page head */
.pagehead{background:var(--ink);color:var(--paper);padding:36px 0 40px}
.pagehead p{color:#D7DBDF;font-size:18px;max-width:780px;margin:0}
.crumbs{font-size:14px;color:#AEB6BD;margin-bottom:10px}.crumbs a{color:#C9CED3}
/* sections */
section.blk{padding:56px 0}
section.soft{background:var(--soft)}
.intro{max-width:780px;color:var(--ink2);font-size:18px}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(270px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}
.card .body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.card.prod img{aspect-ratio:1/1;object-fit:cover}
.card h3{margin:0}.card p{margin:0;color:var(--ink2);font-size:15.5px}
a.card{text-decoration:none;color:var(--ink)}a.card:hover{border-color:var(--accent)}
.more{font-weight:700;color:var(--accent-ink);margin-top:auto}
.price{font-weight:800;font-size:19px;color:var(--ink)}
.price small{display:block;font-weight:500;font-size:13px;color:var(--ink2)}
.tag{display:inline-block;font-size:12px;font-weight:700;padding:3px 8px;border-radius:20px;background:#FFF1DB;color:var(--accent-ink);align-self:flex-start}
.tag.it{background:#E3EEF9;color:#1F4E79}
.steps{counter-reset:s;display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.step{background:var(--ink);color:var(--paper);border-radius:12px;padding:20px}
.step b{display:block;font-size:30px;color:var(--accent);line-height:1}
.step h3{font-size:17px;margin:8px 0 4px}.step p{font-size:14.5px;color:#D7DBDF;margin:0}
.tbl{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:12px}
table{width:100%;border-collapse:collapse;font-size:15.5px;min-width:620px}
th,td{padding:12px 16px;text-align:left;vertical-align:top;border-top:1px solid #ECE8E0}
thead th{background:var(--ink);color:var(--paper);border-top:0}
.prose{max-width:820px}
.prose h2{margin-top:1.6em;font-size:clamp(23px,2.6vw,29px)}
.prose h3{margin-top:1.3em}
.prose ul,.prose ol{padding-left:22px;margin:0 0 1em}.prose li{margin-bottom:.35em}
.prose figure{margin:1.4em 0}.prose figure img{border-radius:10px}
.prose figcaption{font-size:14px;color:var(--ink2);margin-top:6px}
.note{background:#FFF6E6;border:1px solid #F3D9A8;border-radius:10px;padding:14px 18px;margin:1em 0}
.split{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:40px;align-items:start}
.split aside{position:sticky;top:90px}
@media (max-width:980px){.split{grid-template-columns:minmax(0,1fr)}.split aside{position:static}}
.box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}
.box.dark{background:var(--ink);color:var(--paper);border:0}.box.dark a{color:var(--accent)}
details.faq{background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px 20px;margin-bottom:10px}
details.faq summary{font-weight:700;cursor:pointer;font-size:17px}
details.faq p{margin:10px 0 0;color:var(--ink2)}
.gallery{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.gallery img{border-radius:10px;aspect-ratio:4/3;object-fit:cover;width:100%}
/* form */
form.lead{display:grid;gap:12px}
form.lead label{display:grid;gap:5px;font-size:15px;font-weight:600}
form.lead input,form.lead select,form.lead textarea{min-height:46px;border-radius:8px;border:1px solid #9AA3AB;padding:8px 12px;font-size:16px;font-family:inherit;background:#fff;color:var(--ink)}
form.lead textarea{min-height:90px}
.hp{position:absolute;left:-9999px}
.cta{background:var(--ink);color:var(--paper)}
.cta .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;padding-top:56px;padding-bottom:56px}
.cta p{color:#D7DBDF}.cta a{color:var(--accent)}
.cta form.lead{background:var(--dark2);padding:24px;border-radius:12px}
.cta form.lead label{color:var(--paper)}
@media (max-width:900px){.cta .wrap{grid-template-columns:minmax(0,1fr)}}
/* footer */
footer.site{background:#161E25;color:#AEB6BD;font-size:15px}
footer.site .wrap{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px;padding-top:40px;padding-bottom:28px}
footer.site a{color:#D7DBDF;text-decoration:none}footer.site a:hover{color:var(--accent)}
footer.site ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
footer.site h3{color:#fff;font-size:16px}
.copy{border-top:1px solid #2B3843;padding:14px 0 90px;font-size:13px}
@media (max-width:800px){footer.site .wrap{grid-template-columns:1fr}}
/* mobile call bar */
.callbar{position:fixed;left:0;right:0;bottom:0;display:none;z-index:60;box-shadow:0 -2px 10px rgba(0,0,0,.2)}
.callbar a{flex:1;text-align:center;padding:14px 6px;font-weight:800;text-decoration:none;font-size:16px}
.callbar .c1{background:var(--accent);color:var(--ink)}.callbar .c2{background:#0068FF;color:#fff}.callbar .c3{background:var(--ink);color:#fff}
@media (max-width:800px){.callbar{display:flex}.copy{padding-bottom:70px}}
@media (min-width:801px){.copy{padding-bottom:14px}}