/* ===== RESET ===== */
*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:'Montserrat',sans-serif;
scroll-behavior:smooth;
}

body{
background:#ffffff;
color:#222;
line-height:1.7;
}

a{
text-decoration:none;
color:inherit;
}

.container{
width:90%;
max-width:1200px;
margin:auto;
}

/* ===== HEADER ===== */
header{
background:#ffffff;
box-shadow:0 2px 15px rgba(0,0,0,.05);
position:fixed;
width:100%;
top:0;
z-index:999;
}

header .container{
display:flex;
justify-content:space-between;
align-items:center;
padding:15px 0;
}

.logo{
display:flex;
align-items:center;
font-weight:800;
font-size:20px;
color:#ff8c00;
}

.logo-img{
width:40px;
margin-right:10px;
}

@media(max-width:768px){

/* Ẩn menu mặc định */
.nav-menu{
position:fixed;
top:0;
right:-100%;
width:75%;
height:100vh;
background:#ffffff;
box-shadow:-5px 0 20px rgba(0,0,0,.1);
transition:0.4s ease;
padding-top:80px;
z-index:1000;
}

/* Khi bấm sẽ trượt vào */
.nav-menu.active{
right:0;
}

/* Menu dọc */
.nav-menu ul{
display:flex;
flex-direction:column;
padding-left:25px;
}

.nav-menu li{
margin:20px 0;
}

.nav-menu a{
font-size:18px;
font-weight:600;
color:#333;
}

/* Hiện nút hamburger */
.menu-toggle{
display:flex;
z-index:1100;
}

/* Ẩn menu desktop khi mobile */
header .nav-menu{
display:block;
}

}



/* ===== HERO IMAGE RESPONSIVE ===== */

.hero{
position:relative;
width:100%;
min-height:90vh;
display:flex;
align-items:center;
justify-content:center;
overflow:hidden;
}

.hero-img{
width:100%;
height:auto;
object-fit:cover;
display:block;
}



/* Nội dung */
.hero-content{
position:absolute;
text-align:center;
color:white;
max-width:800px;
padding:20px;
}

.hero-content h1{
font-size:42px;
font-weight:800;
margin-bottom:20px;
}

.hero-content p{
font-size:18px;
margin-bottom:30px;
}

/* Mobile */
@media(max-width:768px){

.hero{
min-height:auto;
}

.hero-img{
height:auto;
}

.hero-content h1{
font-size:26px;
}

.hero-content p{
font-size:15px;
}

}

/* BUTTON */
.btn-primary{
background:linear-gradient(45deg,#ff8c00,#ff6a00);
color:white;
padding:14px 30px;
border-radius:40px;
font-weight:600;
display:inline-block;
transition:.3s;
}

.btn-primary:hover{
transform:translateY(-4px);
box-shadow:0 8px 25px rgba(255,140,0,.4);
}

/* ===== SECTION ===== */
section{
padding:90px 0;
}

.section-title{
text-align:center;
font-size:32px;
font-weight:800;
color:#ff8c00;
margin-bottom:40px;
}

/* ALT BACKGROUND */
.section-alt{
background:#fff8f0;
}

/* GRID */
.product-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
gap:30px;
}

/* CARD */
.product-card{
background:white;
padding:30px;
border-radius:16px;
box-shadow:0 8px 25px rgba(0,0,0,.05);
transition:.3s;
}

.product-card:hover{
transform:translateY(-8px);
box-shadow:0 12px 30px rgba(255,140,0,.2);
}

.product-card h3{
color:#ff8c00;
margin-bottom:15px;
}

/* ===== CONTACT SECTION ===== */
.btn-main{
background:#ff8c00;
color:white;
padding:14px 30px;
border-radius:40px;
display:inline-block;
margin-top:20px;
transition:.3s;
}

.btn-main:hover{
background:#ff6a00;
}

/* ===== SOCIAL LEFT ===== */
.social-icons{
position:fixed;
left:15px;
top:50%;
transform:translateY(-50%);
display:flex;
flex-direction:column;
gap:15px;
z-index:999;
}

.icon{
width:45px;
height:45px;
border-radius:50%;
display:flex;
align-items:center;
justify-content:center;
color:white;
font-size:18px;
transition:.3s;
}

.facebook{background:#3b5998;}
.youtube{background:#ff0000;}
.tiktok{background:#000;}
.zalo{background:#0084ff;}

.icon:hover{
transform:scale(1.1);
}

/* ===== FLOATING CONTACT ===== */
.fixed-contact{
position:fixed;
right:20px;
bottom:30px;
display:flex;
flex-direction:column;
gap:15px;
z-index:999;
}

.neon-btn{
width:55px;
height:55px;
border-radius:50%;
display:flex;
align-items:center;
justify-content:center;
background:linear-gradient(45deg,#ff8c00,#ff6a00);
box-shadow:0 0 15px rgba(255,140,0,.6);
animation:pulse 2s infinite;
}

@keyframes pulse{
0%{box-shadow:0 0 0 0 rgba(255,140,0,.6);}
70%{box-shadow:0 0 0 20px rgba(255,140,0,0);}
100%{box-shadow:0 0 0 0 rgba(255,140,0,0);}
}

.neon-btn img{
width:28px;
}

/* ===== FOOTER ===== */
footer{
background:#111;
color:#ccc;
padding:60px 0 30px;
}

.footer-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:30px;
margin-bottom:30px;
}

footer h3{
color:#ff8c00;
margin-bottom:15px;
}

copyright{
text-align:center;
font-size:14px;
}

/* ===== FADE EFFECT ===== */
.fade-in{
opacity:0;
transform:translateY(20px);
animation:fadeUp 1s forwards;
}

@keyframes fadeUp{
to{
opacity:1;
transform:translateY(0);
}
}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){

.nav-menu{
position:absolute;
top:70px;
left:-100%;
background:white;
width:100%;
transition:.4s;
}

.nav-menu ul{
flex-direction:column;
padding:20px;
}

.nav-menu li{
margin:15px 0;
}

.nav-menu.active{
left:0;
}

.menu-toggle{
display:flex;
}

.hero h1{
font-size:28px;
}

.social-icons{
display:none;
}

}
/* Icon social */
.social-icons{
position:fixed;
left:15px;
top:50%;
transform:translateY(-50%);
display:flex;
flex-direction:column;
gap:15px;
z-index:999;
}

.social-icons .icon{
width:50px;
height:50px;
background:#fff;
border-radius:50%;
display:flex;
align-items:center;
justify-content:center;
box-shadow:0 6px 15px rgba(0,0,0,.1);
transition:.3s;
}

.social-icons .icon img{
width:26px;
height:26px;
object-fit:contain;
}

.social-icons .icon:hover{
transform:scale(1.1);
}