:root{--navy:#071b35;--navy2:#0b294d;--red:#ed1c24;--text:#10213a;--muted:#657286;--cream:#f5f2eb;--line:#e6e8ec;--white:#fff;--max:1520px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Segoe UI",Tahoma,Arial,sans-serif;color:var(--text);background:#fff}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(calc(100% - 64px),var(--max));margin:auto}.topbar{background:var(--navy);color:#fff;font-size:13px}.topbar-inner{height:34px;display:flex;align-items:center;justify-content:space-between}.header{height:104px;background:#fff;position:sticky;top:0;z-index:50;border-bottom:1px solid #eef0f3}.nav-wrap{height:100%;display:flex;align-items:center;gap:42px}.brand img{width:112px;height:78px;object-fit:contain}.nav{display:flex;gap:32px;margin-left:auto;font-weight:600}.nav a:hover{color:var(--red)}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 28px;border-radius:4px;font-weight:700;border:1px solid transparent;cursor:pointer}.btn-primary{background:var(--red);color:#fff;box-shadow:0 14px 30px rgba(237,28,36,.18)}.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff}.btn-white{background:#fff;color:var(--navy)}.menu-btn{display:none}.hero{min-height:700px;position:relative;color:#fff;display:flex;align-items:center;overflow:hidden}.hero-media{position:absolute;inset:0;background:url('https://images.unsplash.com/photo-1600566753086-00f18fb6b3ea?auto=format&fit=crop&w=2000&q=88') center/cover}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,16,32,.9) 0%,rgba(3,16,32,.57) 46%,rgba(3,16,32,.08) 100%)}.hero-content{position:relative;padding:76px 0;max-width:1500px}.eyebrow{font-size:14px;letter-spacing:4px;font-weight:800;color:#fff}.eyebrow.dark{color:var(--red)}h1,h2{font-family:"Segoe UI",Tahoma,Arial,sans-serif;font-weight:800;margin:0;line-height:1.06}.hero h1{font-size:clamp(58px,5.7vw,94px);max-width:1020px;margin:26px 0}.hero h1 em{font-style:normal}.hero p{font-size:20px;line-height:1.8;max-width:840px;color:#edf3f9}.hero-actions{display:flex;gap:16px;margin-top:34px}.hero-stats{display:flex;gap:62px;margin-top:54px}.hero-stats strong{font-size:28px;display:block}.hero-stats span{font-size:13px;color:#d7e1ed}.section{padding:110px 0}.grid-2{display:grid;grid-template-columns:1fr 1.1fr;gap:130px;align-items:center}.about-visual{min-height:610px;position:relative}.image{position:absolute;background-size:cover;background-position:center}.image-main{inset:0 20% 10% 0;background-image:url('https://images.unsplash.com/photo-1600607687920-4e2a09cf159d?auto=format&fit=crop&w=1200&q=85')}.image-small{width:48%;height:42%;right:0;bottom:0;border:12px solid #fff;background-image:url('https://images.unsplash.com/photo-1600566753190-17f0baa2a6c3?auto=format&fit=crop&w=900&q=85')}.experience{position:absolute;right:2%;top:8%;background:var(--red);color:#fff;padding:26px}.experience strong{font-size:42px}.section-copy h2,.section-heading h2,.center-heading h2,.contact h2{font-size:clamp(42px,4vw,68px);margin:22px 0}.section-copy p,.section-heading p,.contact p{font-size:18px;line-height:1.85;color:var(--muted)}.check-list{display:grid;gap:15px;margin:28px 0}.check-list span:before{content:"✓";color:var(--red);font-weight:800;margin-right:12px}.text-link{font-weight:800}.services{background:var(--cream)}.section-heading{display:grid;grid-template-columns:1.2fr .8fr;gap:80px;align-items:end;margin-bottom:54px}.service-grid,.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}.service-card{background:#fff;padding:20px 20px 30px}.service-photo{height:310px;background-size:cover;background-position:center}.s1{background-image:url('https://images.unsplash.com/photo-1600566753086-00f18fb6b3ea?auto=format&fit=crop&w=1000&q=85')}.s2{background-image:url('https://images.unsplash.com/photo-1555041469-a586c61ea9bc?auto=format&fit=crop&w=1000&q=85')}.s3{background-image:url('https://images.unsplash.com/photo-1600607688969-a5bfcd646154?auto=format&fit=crop&w=1000&q=85')}.service-card span{position:absolute}.service-card h3,.product-card h3{font-size:22px;margin:22px 0 8px}.service-card p,.product-card p{color:var(--muted);line-height:1.7}.projects{background:var(--navy);color:#fff}.section-heading.light p{color:#d5deea}.project-grid{display:grid;grid-template-columns:2fr 1fr;grid-template-rows:1fr 1fr;gap:22px}.project-card{position:relative;min-height:310px;overflow:hidden}.project-card.large{grid-row:span 2;min-height:642px}.project-photo{position:absolute;inset:0;background-size:cover;background-position:center;transition:.5s}.project-card:hover .project-photo{transform:scale(1.04)}.p1{background-image:url('https://images.unsplash.com/photo-1600607688969-a5bfcd646154?auto=format&fit=crop&w=1400&q=85')}.p2{background-image:url('https://images.unsplash.com/photo-1600210492486-724fe5c67fb0?auto=format&fit=crop&w=1000&q=85')}.p3{background-image:url('https://images.unsplash.com/photo-1497366754035-f200968a6e72?auto=format&fit=crop&w=1000&q=85')}.project-meta{position:absolute;inset:auto 0 0;padding:28px;background:linear-gradient(transparent,rgba(0,0,0,.8));display:flex;justify-content:space-between;align-items:end}.project-meta h3{font-size:25px;margin:7px 0}.products{background:#fff}.product-grid{grid-template-columns:repeat(3,1fr)}.product-card{border:1px solid var(--line);padding:14px}.product-photo{height:330px;background-size:cover;background-position:center}.category-row{display:flex;gap:10px;margin-bottom:30px}.category-row button{border:1px solid var(--line);background:#fff;padding:12px 18px}.category-row .active{background:var(--navy);color:#fff}.process{background:#f8f9fb}.center-heading{text-align:center}.process-line{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:60px}.step{padding:28px;border-top:3px solid var(--red);background:#fff}.step b{color:var(--red)}.step p{color:var(--muted);line-height:1.7}.quote-section{background:var(--red);color:#fff;padding:68px 0}.quote-wrap{display:flex;justify-content:space-between;align-items:center;gap:40px}.quote-wrap h2{font-size:48px;margin:12px 0}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px}.contact-info ul{padding:0;list-style:none}.contact-info li{margin:24px 0}.contact-info strong{display:block;color:var(--red);text-transform:uppercase;letter-spacing:2px;font-size:13px;margin-bottom:8px}.contact-form{background:#f7f8fa;padding:36px;border:1px solid var(--line)}.contact-form label{display:block;font-weight:700;margin-bottom:20px}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}.contact-form input,.contact-form select,.contact-form textarea{width:100%;margin-top:9px;padding:16px;border:1px solid #dce1e8;background:#fff;font:inherit}.footer{background:#03162d;color:#fff;padding:65px 0 26px}.footer-grid{display:grid;grid-template-columns:1.2fr .7fr 1fr;gap:80px}.footer img{width:130px}.footer a,.footer p{color:#d7e0eb;line-height:1.8}.floating{position:fixed;right:24px;bottom:24px;z-index:60;display:grid;gap:10px}.floating a{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:800}.call{background:var(--red)}.zalo{background:#1677df}.news{background:#f6f7f9}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}.article-card{background:#fff;border:1px solid var(--line);overflow:hidden}.article-card img{height:240px;width:100%;object-fit:cover}.article-card div{padding:24px}.article-card h3{font-size:22px}.article-card p{color:var(--muted);line-height:1.65}.article-main{padding:70px 0}.article{max-width:980px}.article-head{text-align:center}.article-head h1{font-size:58px;margin:20px 0}.article-head p{font-size:19px;color:var(--muted);line-height:1.7}.article-cover{width:100%;max-height:560px;object-fit:cover;margin:42px 0}.article-body{font-family:"Segoe UI",Tahoma,Arial,sans-serif;font-size:18px;line-height:1.85;color:#27364b}.article-body h2{font-family:"Segoe UI",Tahoma,Arial,sans-serif;font-size:30px;margin:42px 0 14px}.article-body a{color:var(--red);font-weight:700}.article-cta{margin-top:60px;padding:36px;background:var(--cream)}.admin-body{background:#eef2f7}.admin-shell{display:grid;grid-template-columns:250px 1fr;min-height:100vh}.admin-side{background:var(--navy);color:#fff;padding:24px}.admin-side img{width:120px;margin-bottom:34px}.admin-side button{display:block;width:100%;text-align:left;padding:14px;border:0;background:transparent;color:#fff;font:inherit;cursor:pointer}.admin-side button.active{background:rgba(255,255,255,.12)}.admin-main{padding:34px}.admin-panel{display:none}.admin-panel.active{display:block}.admin-card{background:#fff;padding:24px;border-radius:10px;margin-bottom:20px}.admin-table{width:100%;border-collapse:collapse}.admin-table th,.admin-table td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.admin-form input,.admin-form textarea,.admin-form select{width:100%;padding:12px;margin:6px 0 14px;border:1px solid #ccd4df}.admin-form textarea{min-height:130px}.login-wrap{min-height:100vh;display:grid;place-items:center;background:var(--navy)}.login-box{width:min(420px,calc(100% - 30px));background:#fff;padding:34px}.login-box img{width:130px;margin:auto auto 24px}
@media(max-width:900px){.container{width:min(calc(100% - 32px),var(--max))}.topbar{display:none}.header{height:82px}.brand img{width:86px;height:62px}.menu-btn{display:block;margin-left:auto;border:0;background:none}.menu-btn span{display:block;width:26px;height:2px;background:#111;margin:6px}.nav{display:none;position:absolute;top:82px;left:0;right:0;background:#fff;padding:24px;flex-direction:column}.nav.open{display:flex}.nav-cta{display:none}.hero{min-height:650px}.hero h1{font-size:50px}.hero-stats{gap:22px;flex-wrap:wrap}.grid-2,.section-heading,.contact-grid{grid-template-columns:1fr;gap:44px}.about-visual{min-height:470px}.service-grid,.product-grid,.article-grid{grid-template-columns:1fr}.project-grid{display:block}.project-card,.project-card.large{min-height:380px;margin-bottom:16px}.process-line{grid-template-columns:1fr 1fr}.quote-wrap{display:block}.quote-wrap .btn{margin-top:20px}.field-row{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:24px}.article-head h1{font-size:40px}.admin-shell{display:block}.admin-side{position:relative}.admin-main{padding:18px}.admin-table{font-size:13px}}

button,input,select,textarea{font-family:"Segoe UI",Tahoma,Arial,sans-serif}
.nav,.btn,.eyebrow,.topbar,.service-card,.product-card,.article-card,
.contact-form,.footer,.admin-body,.admin-shell,.admin-main,.admin-side,
.login-box,.article-main{font-family:"Segoe UI",Tahoma,Arial,sans-serif}
h1,h2,h3,h4,h5,h6{font-family:"Segoe UI",Tahoma,Arial,sans-serif}

/* NHAT TRUONG ADMIN LOGIN FINAL */
.login-wrap {
    min-height: 100vh !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 32px 16px !important;
    background:
        radial-gradient(circle at 80% 15%, rgba(237,28,36,.15), transparent 30%),
        linear-gradient(145deg, #03162d, #0b294d) !important;
}

.login-box {
    display: block !important;
    width: 100% !important;
    max-width: 430px !important;
    padding: 42px !important;
    margin: 0 !important;
    background: #fff !important;
    border: 0 !important;
    border-radius: 18px !important;
    box-shadow: 0 28px 80px rgba(0,0,0,.32) !important;
}

.login-box img {
    display: block !important;
    width: 145px !important;
    height: 105px !important;
    object-fit: contain !important;
    margin: 0 auto 25px !important;
}

.login-box h2 {
    display: block !important;
    margin: 0 0 28px !important;
    text-align: center !important;
    color: #071b35 !important;
    font: 800 28px/1.3 Arial, Helvetica, sans-serif !important;
}

.login-box label {
    display: block !important;
    width: 100% !important;
    margin: 0 0 18px !important;
    color: #17263b !important;
    font: 700 15px/1.4 Arial, Helvetica, sans-serif !important;
}

.login-box input {
    display: block !important;
    width: 100% !important;
    height: 52px !important;
    margin: 9px 0 0 !important;
    padding: 0 15px !important;
    border: 1px solid #d5dce5 !important;
    border-radius: 8px !important;
    background: #fff !important;
    color: #17263b !important;
    font: 400 16px Arial, Helvetica, sans-serif !important;
    outline: none !important;
}

.login-box input:focus {
    border-color: #ed1c24 !important;
    box-shadow: 0 0 0 3px rgba(237,28,36,.12) !important;
}

.login-box button {
    display: flex !important;
    width: 100% !important;
    height: 54px !important;
    margin: 6px 0 0 !important;
    border: 0 !important;
    border-radius: 8px !important;
    font: 700 17px Arial, Helvetica, sans-serif !important;
}

#loginMsg {
    display: block !important;
    min-height: 22px !important;
    margin: 17px 0 0 !important;
    color: #d71920 !important;
    text-align: center !important;
    font: 400 14px/1.5 Arial, Helvetica, sans-serif !important;
}