/* ===========================
   STR Enterprise Website
=========================== */

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

html{
    scroll-behavior:smooth;
}

body{
    font-family:'Poppins',sans-serif;
    color:#333;
    background:#f8fbff;
    line-height:1.7;
}

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

/* Header */

header{
    position:fixed;
    width:100%;
    top:0;
    left:0;
    background:#ffffff;
    box-shadow:0 2px 10px rgba(0,0,0,.08);
    z-index:999;
}

.nav{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:18px 0;
}

.logo h2{
    color:#0b74c8;
    font-size:28px;
}

.logo p{
    font-size:13px;
    color:#666;
}

nav ul{
    display:flex;
    list-style:none;
}

nav ul li{
    margin-left:28px;
}

nav ul li a{
    color:#333;
    text-decoration:none;
    font-weight:500;
    transition:.3s;
}

nav ul li a:hover{
    color:#0b74c8;
}

/* Hero */

.hero{
    height:100vh;
    background:url("images/hero.jpg") center center/cover no-repeat;
    display:flex;
    justify-content:center;
    align-items:center;
    position:relative;
}

.overlay{
    position:absolute;
    width:100%;
    height:100%;
    background:rgba(0,52,89,.60);
}

.hero-content{
    position:relative;
    text-align:center;
    color:white;
    max-width:850px;
    padding:20px;
}

.hero h1{
    font-size:58px;
    margin-bottom:20px;
}

.hero p{
    font-size:21px;
    margin-bottom:35px;
}

.btn{
    display:inline-block;
    background:#0b74c8;
    color:white;
    padding:15px 34px;
    border-radius:50px;
    text-decoration:none;
    transition:.3s;
    font-weight:600;
}

.btn:hover{
    background:#095da0;
    transform:translateY(-3px);
}

/* Sections */

.section{
    padding:90px 0;
}

.section-title{
    text-align:center;
    font-size:38px;
    color:#0b74c8;
    margin-bottom:50px;
}

/* Product Cards */

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:35px;
}

.card{
    background:white;
    border-radius:15px;
    overflow:hidden;
    box-shadow:0 12px 25px rgba(0,0,0,.08);
    transition:.4s;
}

.card:hover{
    transform:translateY(-10px);
}

.card img{
    width:100%;
    height:230px;
    object-fit:cover;
}

.card h3{
    padding:20px 20px 10px;
    color:#0b74c8;
}

.card p{
    padding:0 20px 25px;
}

/* Why Us */

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

.features div{
    background:white;
    padding:30px;
    border-radius:12px;
    box-shadow:0 10px 20px rgba(0,0,0,.08);
}

.features h3{
    color:#0b74c8;
    margin-bottom:15px;
}

/* Contact */

.contact-box{
    max-width:700px;
    margin:auto;
    background:white;
    padding:45px;
    border-radius:15px;
    box-shadow:0 12px 30px rgba(0,0,0,.08);
}

.contact-box p{
    margin-bottom:22px;
}

.contact-box a{
    color:#0b74c8;
    text-decoration:none;
}

/* Footer */

footer{
    background:#0b74c8;
    color:white;
    text-align:center;
    padding:25px 0;
}

/* WhatsApp */

.whatsapp{
    position:fixed;
    right:25px;
    bottom:25px;
    width:65px;
    height:65px;
    background:#25D366;
    color:white;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    text-decoration:none;
    font-size:30px;
    box-shadow:0 10px 20px rgba(0,0,0,.3);
    transition:.3s;
}

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

/* Mobile */

@media(max-width:900px){

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

.hero p{
    font-size:18px;
}

.nav{
    flex-direction:column;
}

nav ul{
    margin-top:15px;
    flex-wrap:wrap;
    justify-content:center;
}

nav ul li{
    margin:8px;
}

.section-title{
    font-size:30px;
}

.contact-box{
    padding:30px;
}

}
/* Contact Form */

.contact-form{

max-width:850px;

margin:auto;

background:white;

padding:45px;

border-radius:15px;

box-shadow:0 12px 30px rgba(0,0,0,.08);

}

.form-row{

display:flex;

gap:20px;

margin-bottom:20px;

}

.contact-form input,

.contact-form textarea,

.contact-form select{

width:100%;

padding:16px;

border:1px solid #ddd;

border-radius:8px;

font-family:Poppins;

font-size:15px;

margin-bottom:20px;

}

.contact-form button{

border:none;

cursor:pointer;

}

@media(max-width:768px){

.form-row{

flex-direction:column;

gap:0;

}

}