:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --background: #f9fafb;
    --text: #1f2937;
    --error: #dc2626;
    --card-bg: #ffffff;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background);
    color: var(--text);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-wrapper {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    width: 100%;
    max-width: 380px;
}

h2 {
    text-align: center;
    margin-bottom: 24px;
    font-size: 24px;
    font-weight: 600;
}

label {
    display: block;
    font-size: 14px;
    margin-bottom: 6px;
    margin-top: 12px;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 10px;
    transition: border-color 0.2s;
}

input[type="text"]:focus,
input[type="password"]:focus {
    border-color: var(--primary);
    outline: none;
}

input[type="submit"] {
    width: 100%;
    background-color: var(--primary);
    color: white;
    padding: 12px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 20px;
    transition: background-color 0.3s ease;
}

input[type="submit"]:hover {
    background-color: var(--primary-dark);
}


.erro {
    background-color: #fee2e2;
    border: 1px solid var(--error);
    color: var(--error);
    padding: 10px 12px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}

@media (max-width: 450px) {
    .login-wrapper {
        padding: 30px 20px;
    }
}