* {
    box-sizing: border-box;
}
body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: #f4f6f9;
    color: #333;
}
.container {
    max-width: 960px;
    margin: auto;
    padding: 1em;
}
header {
    text-align: center;
    padding: 2em 0;
}
header h1 {
    margin-bottom: 0.2em;
    color: #2c3e50;
}
header p {
    color: #638B33;
}
.main-img {
    width: 100%;
    max-width: 600px;
    margin-top: 1em;
}
ul {
    padding-left: 1.2em;
}
.button {
    display: inline-block;
    margin-top: 1em;
    padding: 0.6em 1.2em;
    background: #638B33;
    color: white;
    text-decoration: none;
    border-radius: 5px;
}
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1em;
}
.card {
    background: white;
    padding: 1.2em;
    border-radius: 8px;
    box-shadow: 0 0 8px rgba(0,0,0,0.1);
}
.card h2 {
    margin-top: 0;
}
footer {
    text-align: center;
    padding: 2em 0;
    font-size: 0.9em;
    color: #888;
}
.login-container {
    max-width: 400px;
    margin: 10vh auto;
    padding: 2em;
    background: white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.login-container h2 {
    text-align: center;
}
.login-container form {
    display: flex;
    flex-direction: column;
}
.login-container input {
    padding: 0.8em;
    margin-bottom: 1em;
    border: 1px solid #ccc;
    border-radius: 5px;
}
.login-container button {
    padding: 0.8em;
    background: #638B33;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}