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

body {

    font-family: Arial, Helvetica, sans-serif;

    background: #f4f7fb;

    display: flex;

    justify-content: center;

    align-items: center;

    height: 100vh;

}

.login-container {

    width: 420px;

}

.logo {

    text-align: center;

    margin-bottom: 30px;

}

.logo h1 {

    color: #111;

    font-size: 42px;

    font-weight: 800;

    letter-spacing: 2px;

}

.logo span {

    color: #12a64a;

}

.logo p {

    color: #777;

    margin-top: 8px;

    font-size: 15px;

}

.login-card {

    background: white;

    border-radius: 18px;

    padding: 35px;

    box-shadow: 0 12px 35px rgba(0, 0, 0, .08);

}

.login-card h2 {

    margin-bottom: 25px;

    text-align: center;

    color: #222;

}

input {

    width: 100%;

    height: 48px;

    margin-bottom: 18px;

    padding: 0 15px;

    border: 1px solid #ddd;

    border-radius: 10px;

    font-size: 15px;

    transition: .2s;

}

input:focus {

    outline: none;

    border-color: #12a64a;

    box-shadow: 0 0 0 3px rgba(18, 166, 74, .15);

}

button {

    width: 100%;

    height: 50px;

    border: none;

    border-radius: 10px;

    background: #12a64a;

    color: white;

    font-size: 16px;

    font-weight: bold;

    cursor: pointer;

    transition: .2s;

}

button:hover {

    background: #0f8e3f;

}

.error {

    background: #ffe5e5;

    color: #b00020;

    border: 1px solid #ffbaba;

    border-radius: 10px;

    padding: 12px;

    margin-bottom: 18px;

    text-align: center;

}

.footer {

    text-align: center;

    margin-top: 25px;

    color: #888;

    font-size: 13px;

}