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

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #ffffff;
    color: #111111;
}

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

/* TOP BAR */
.topbar {
    background-color: #f2f2f2;
    font-size: 14px;
    padding: 8px 0;
}

.topbar .container {
    display: flex;
    justify-content: space-between;
}

/* MAIN HEADER */
.main-header {
    background-color: #ffffff;
    border-bottom: 1px solid #e5e5e5;
    padding: 15px 0;
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #ff6a00; /* ATOM Orange */
}

nav a {
    margin-left: 25px;
    text-decoration: none;
    color: #111111;
    font-weight: 500;
}

nav a:hover {
    color: #ff6a00;
}

/* HERO */
.hero {
    background-color: #fafafa;
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 36px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
    margin-bottom: 30px;
    color: #555555;
}

.btn {
    background-color: #ff6a00;
    color: white;
    padding: 14px 28px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 4px;
}

.btn:hover {
    background-color: #e55e00;
}

/* FOOTER */
footer {
    background-color: #111111;
    color: white;
    text-align: center;
    padding: 20px 0;
    margin-top: 60px;
}