*{
margin:0;
padding:0;
box-sizing:border-box;
}

html{
scroll-behavior:smooth;
}

body{
font-family:'Inter',sans-serif;
background:#fff;
color:#222;
line-height:1.7;
overflow-x:hidden;
}

.container{
width:90%;
max-width:1250px;
margin:auto;
}

.section{
padding:120px 0;
}

.header{
position:fixed;
top:0;
width:100%;
z-index:999;
transition:0.3s;
background:rgba(0,0,0,0.2);
backdrop-filter:blur(8px);
}

.header.scrolled{
background:#111;
}

.navbar{
display:flex;
justify-content:space-between;
align-items:center;
padding:20px 0;
}

.logo{
font-size:28px;
font-weight:900;
color:#fff;
letter-spacing:2px;
}

.nav-links{
display:flex;
gap:35px;
list-style:none;
}

.nav-links a{
text-decoration:none;
color:#fff;
font-weight:500;
transition:0.3s;
}

.nav-links a:hover{
color:#2f80ff;
}

.btn-primary{
background:#0d6efd;
color:white;
padding:15px 30px;
border-radius:10px;
text-decoration:none;
display:inline-block;
font-weight:700;
transition:0.3s;
border:none;
cursor:pointer;
}

.btn-primary:hover{
transform:translateY(-3px);
background:#005ce6;
}

.btn-outline{
border:2px solid white;
padding:15px 30px;
border-radius:10px;
color:white;
text-decoration:none;
font-weight:700;
}

.hero{
height:100vh;
position:relative;
display:flex;
align-items:center;
overflow:hidden;
}

.hero-slider{
position:absolute;
inset:0;
}

.slide{
position:absolute;
inset:0;
opacity:0;
transition:opacity 1.2s ease-in-out;
background-size:cover;
background-position:center;
transform:scale(1.08);
animation:zoom 10s linear infinite;
}

.slide:nth-child(1){
background-image:url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?q=80&w=1600&auto=format&fit=crop');
}

.slide:nth-child(2){
background-image:url('images/nhaxuong/ceo.jpg');
}

.slide:nth-child(3){
background-image:url('https://images.unsplash.com/photo-1503387762-592deb58ef4e?q=80&w=1600&auto=format&fit=crop');
}

.slide.active{
opacity:1;
}

@keyframes zoom{
from{transform:scale(1.05);}
to{transform:scale(1.15);}
}

.hero-overlay{
position:absolute;
inset:0;
background:rgba(0,0,0,0.6);
z-index:1;
}

.hero-content{
position:relative;
z-index:2;
color:white;
max-width:780px;
}

.hero-badge{
display:inline-block;
background:rgba(255,255,255,0.15);
padding:12px 20px;
border-radius:40px;
margin-bottom:25px;
font-size:14px;
letter-spacing:1px;
backdrop-filter:blur(8px);
}

.hero h1{
font-size:72px;
line-height:1.1;
margin-bottom:25px;
font-weight:900;
}

.hero p{
font-size:20px;
color:#ddd;
margin-bottom:35px;
max-width:700px;
}

.hero-buttons{
display:flex;
gap:20px;
}

.floating-stats{
margin-top:-70px;
position:relative;
z-index:3;
}

.stats-wrapper{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:25px;
}

.stat-box{
background:white;
padding:40px;
border-radius:18px;
text-align:center;
box-shadow:0 20px 50px rgba(0,0,0,0.08);
}

.stat-box h2{
font-size:48px;
color:#0d6efd;
}

.about-grid,
.contact-grid{
display:grid;
grid-template-columns:repeat(2,1fr);
gap:70px;
align-items:center;
}

.about-image-wrapper img{
width:100%;
border-radius:24px;
box-shadow:0 20px 50px rgba(0,0,0,0.1);
}

.section-tag{
display:inline-block;
color:#0d6efd;
font-weight:800;
letter-spacing:2px;
margin-bottom:15px;
}

h2{
font-size:48px;
line-height:1.2;
margin-bottom:25px;
}

.feature-list{
margin:30px 0;
display:grid;
grid-template-columns:repeat(2,1fr);
gap:15px;
}

.feature-item{
background:#f5f7fb;
padding:18px;
border-radius:12px;
font-weight:600;
}

.services{
background:#f7f8fa;
}

.section-header{
text-align:center;
max-width:800px;
margin:auto auto 70px;
}

.services-grid,
.projects-grid,
.blog-grid{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:30px;
}

.service-card{
background:white;
padding:45px;
border-radius:20px;
transition:0.4s;
position:relative;
overflow:hidden;
}

.service-card:hover{
transform:translateY(-10px);
box-shadow:0 20px 50px rgba(0,0,0,0.08);
}

.service-number{
font-size:60px;
font-weight:900;
opacity:0.08;
position:absolute;
top:10px;
right:25px;
}

.project-card{
position:relative;
overflow:hidden;
border-radius:22px;
height:420px;
}

.project-card img{
width:100%;
height:100%;
object-fit:cover;
transition:0.5s;
}

.project-card:hover img{
transform:scale(1.1);
}

.project-overlay{
position:absolute;
inset:0;
background:linear-gradient(to top, rgba(0,0,0,0.75), transparent);
display:flex;
flex-direction:column;
justify-content:flex-end;
padding:30px;
color:white;
}

.parallax-section{
background-image:url('https://images.unsplash.com/photo-1512917774080-9991f1c4c750?q=80&w=1600&auto=format&fit=crop');
background-attachment:fixed;
background-size:cover;
background-position:center;
padding:150px 0;
position:relative;
text-align:center;
color:white;
}

.parallax-overlay{
position:absolute;
inset:0;
background:rgba(0,0,0,0.65);
}

.parallax-content{
position:relative;
z-index:2;
}

.blog-card{
background:white;
padding:35px;
border-radius:18px;
box-shadow:0 10px 30px rgba(0,0,0,0.05);
}

.contact-form{
background:#f7f8fa;
padding:45px;
border-radius:20px;
}

.contact-form input,
.contact-form textarea{
width:100%;
padding:18px;
border:none;
margin-bottom:20px;
border-radius:12px;
font-size:16px;
}

.full-width{
width:100%;
}

.footer{
background:#111;
color:white;
padding:50px 0;
}

.footer-content{
display:flex;
justify-content:space-between;
align-items:center;
}

.floating-contact{
position:fixed;
right:20px;
bottom:20px;
display:flex;
flex-direction:column;
gap:15px;
z-index:999;
}

.floating-contact a{
width:58px;
height:58px;
background:#0d6efd;
display:flex;
justify-content:center;
align-items:center;
border-radius:50%;
color:white;
text-decoration:none;
font-size:22px;
box-shadow:0 10px 30px rgba(0,0,0,0.2);
}

@media(max-width:992px){

.hero h1{
font-size:52px;
}

.about-grid,
.contact-grid,
.services-grid,
.projects-grid,
.blog-grid,
stats-wrapper{
grid-template-columns:1fr;
}

.stats-wrapper{
display:grid;
}

.nav-links{
display:none;
}

.feature-list{
grid-template-columns:1fr;
}

}

@media(max-width:768px){

.section{
padding:80px 0;
}

.hero h1{
font-size:40px;
}

.hero-buttons{
flex-direction:column;
}

h2{
font-size:34px;
}

}