* {
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, sans-serif;
}

body {
    margin: 0;
    height: 100vh;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: #fff;
    border-radius: 12px;
    padding: 30px 25px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
    text-align: center;
}

.logo img {
    width: 120px;
    margin-bottom: 15px;
    opacity: 0.9;
}

h2 {
    margin-bottom: 20px;
    color: #1e3c72;
}

label {
    display: block;
    text-align: left;
    font-size: 14px;
    margin-bottom: 5px;
    color: #333;
}

input {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #ccc;
    margin-bottom: 15px;
    font-size: 14px;
}

input:focus {
    outline: none;
    border-color: #2a5298;
}

button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    border: none;
    border-radius: 6px;
    color: #fff;
    font-size: 15px;
    cursor: pointer;
    font-weight: bold;
}

button:hover {
    opacity: 0.9;
}

.error {
    background: #ffe5e5;
    color: #c0392b;
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 15px;
    font-size: 14px;
}

.footer {
    margin-top: 20px;
    font-size: 12px;
    color: #777;
}