/* =======================================
   CRRESTA RESEARCH PRIVATE LIMITED
   Premium Corporate Theme
======================================= */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root{
    --primary:#0d1b2a;
    --secondary:#1b263b;
    --accent:#1d4ed8;
    --gold:#fbbf24;
    --white:#ffffff;
    --gray:#f5f7fa;
    --text:#d6d6d6;
    --shadow:0 10px 30px rgba(0,0,0,.25);
}

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

html{
    scroll-behavior:smooth;
}

body{
    font-family:'Poppins',sans-serif;
    background:#08131f;
    color:#fff;
    line-height:1.7;
}

img{
    max-width:100%;
    display:block;
}

a{
    text-decoration:none;
}

ul{
    list-style:none;
}

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

/* ================= HEADER ================= */

header{
    position:fixed;
    width:100%;
    top:0;
    left:0;
    z-index:1000;
    background:rgba(5,15,30,.75);
    backdrop-filter:blur(12px);
    border-bottom:1px solid rgba(255,255,255,.08);
}

header .container{
    display:flex;
    justify-content:space-between;
    align-items:center;
    height:80px;
}

.logo h2{
    color:var(--gold);
    font-size:30px;
    font-weight:800;
    letter-spacing:2px;
}

nav ul{
    display:flex;
    gap:35px;
}

nav a{
    color:#fff;
    transition:.3s;
    font-weight:500;
}

nav a:hover{
    color:var(--gold);
}

/* ================= BUTTONS ================= */

.btn{
    display:inline-block;
    padding:14px 30px;
    background:linear-gradient(45deg,#1d4ed8,#2563eb);
    color:#fff;
    border-radius:40px;
    transition:.3s;
    font-weight:600;
    box-shadow:var(--shadow);
}

.btn:hover{
    transform:translateY(-4px);
}

.btn-outline{
    display:inline-block;
    padding:14px 30px;
    border:2px solid var(--gold);
    color:var(--gold);
    border-radius:40px;
    margin-left:15px;
    transition:.3s;
}

.btn-outline:hover{
    background:var(--gold);
    color:#111;
}

/* ================= HERO ================= */

.hero{
    height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    text-align:center;
    position:relative;
    overflow:hidden;
    background:
    linear-gradient(rgba(0,0,0,.65),rgba(0,0,0,.65)),
    url("https://images.unsplash.com/photo-1520607162513-77705c0f0d4a?auto=format&fit=crop&w=1600&q=80");
    background-size:cover;
    background-position:center;
}

.hero-content{
    position:relative;
    z-index:2;
    max-width:900px;
}

.hero h1{
    font-size:60px;
    margin-bottom:25px;
    font-weight:800;
    line-height:1.2;
}

.hero p{
    font-size:20px;
    color:#ddd;
    margin-bottom:40px;
}

/* ================= SECTION ================= */

section{
    padding:100px 0;
}

section h2{
    text-align:center;
    font-size:40px;
    color:var(--gold);
    margin-bottom:25px;
}

section p{
    color:#d0d0d0;
}

/* ================= CARDS ================= */

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:30px;
    margin-top:50px;
}

.card{
    background:rgba(255,255,255,.05);
    backdrop-filter:blur(15px);
    padding:40px;
    border-radius:20px;
    text-align:center;
    transition:.35s;
    border:1px solid rgba(255,255,255,.08);
}

.card:hover{
    transform:translateY(-10px);
    box-shadow:0 20px 40px rgba(0,0,0,.4);
}

.card i{
    font-size:60px;
    color:var(--gold);
    margin-bottom:20px;
}

.card h3{
    margin-bottom:15px;
}

/* ================= TECHNOLOGY ================= */

.tech{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:30px;
    margin-top:50px;
}

.tech div{
    text-align:center;
    background:#10233e;
    padding:35px;
    border-radius:20px;
    transition:.3s;
}

.tech div:hover{
    background:#17355f;
}

.tech i{
    font-size:55px;
    color:var(--gold);
    margin-bottom:15px;
}

/* ================= STATS ================= */

.stats{
    background:#0d2037;
}

.stats .container{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:30px;
    text-align:center;
}

.stat h2{
    font-size:50px;
    color:var(--gold);
}

.stat p{
    color:#ddd;
}

/* ================= FORM ================= */

form{
    max-width:700px;
    margin:auto;
}

form input,
form textarea{
    width:100%;
    padding:18px;
    margin:15px 0;
    border:none;
    border-radius:10px;
    background:#12263f;
    color:#fff;
    font-size:16px;
}

textarea{
    min-height:180px;
    resize:vertical;
}

form button{
    border:none;
    cursor:pointer;
}

/* ================= FOOTER ================= */

footer{
    background:#06111d;
    padding:40px 0;
    text-align:center;
}

footer h3{
    color:var(--gold);
    margin-bottom:10px;
}

footer p{
    color:#aaa;
    margin-top:8px;
}

/* ================= ANIMATION ================= */

.card,
.tech div,
.btn{
    transition:all .35s ease;
}

/* ================= RESPONSIVE ================= */

@media(max-width:992px){

.hero h1{
    font-size:48px;
}

nav{
    display:none;
}

}

@media(max-width:768px){

.hero h1{
    font-size:38px;
}

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

section h2{
    font-size:32px;
}

header .container{
    height:70px;
}

.btn{
    display:block;
    margin-bottom:15px;
}

.btn-outline{
    display:block;
    margin-left:0;
}

}

@media(max-width:480px){

.hero h1{
    font-size:30px;
}

.logo h2{
    font-size:24px;
}

section{
    padding:70px 0;
}

}