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

body {
    font-family: 'Inter', sans-serif;
    background-color: #0f1115;
    color: #fff;
    line-height: 1.6;
}

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

header {
    background: rgba(0,0,0,0.8);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 22px;
    font-weight: 700;
}

.logo span {
    color: #ff7a00;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

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

nav a:hover {
    color: #ff7a00;
}

.btn-nav {
    background: #ff7a00;
    padding: 8px 16px;
    border-radius: 5px;
}

.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.8)),
                url('../images/mining-bg.jpg') center/cover no-repeat;
}

.hero h1 {
    font-size: 42px;
    margin-bottom: 20px;
    font-family: 'Orbitron', sans-serif;
}

.hero p {
    margin-bottom: 30px;
    color: #ccc;
}

.btn-primary {
    background: #ff7a00;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    color: #fff;
    transition: 0.3s;
}

.btn-primary:hover {
    background: #ff9a30;
}

.btn-secondary {
    border: 2px solid #ff7a00;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    color: #ff7a00;
    margin-left: 10px;
}

.solutions {
    padding: 100px 0;
    background: #161a20;
}

.solutions h2 {
    text-align: center;
    margin-bottom: 50px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.card {
    background: #1e232b;
    padding: 25px;
    border-radius: 8px;
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-8px);
    background: #242a33;
}

.technology,
.sustainability,
.contact {
    padding: 100px 0;
    text-align: center;
}

.contact form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 500px;
    margin: auto;
}

.contact input,
.contact textarea {
    padding: 12px;
    border: none;
    border-radius: 5px;
}

footer {
    background: #0b0d11;
    text-align: center;
    padding: 20px 0;
    font-size: 14px;
    color: #aaa;
}

/* Responsive */
@media(max-width:768px){
    .hero h1 {
        font-size: 28px;
    }
}