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

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0b3f6f, #126da8, #1c8bc4);
}

.login-box {
    width: 100%;
    max-width: 430px;
    padding: 34px;
    text-align: center;
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 22px 55px rgba(0, 0, 0, 0.24);
}

.logo {
    width: 82px;
    height: 82px;
    margin: 0 auto 16px;
    background-image: url("../img/logo.png");
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
    font-size: 0;
}

.login-box h2 {
    margin-bottom: 28px;
    color: #0f4c81;
    font-size: 20px;
    line-height: 1.4;
}

form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.campo {
    text-align: left;
}

.campo label {
    display: block;
    margin-bottom: 7px;
    color: #334155;
    font-size: 14px;
    font-weight: 700;
}

.campo input {
    width: 100%;
    height: 48px;
    padding: 0 14px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    color: #1e293b;
    background: #ffffff;
    font-size: 15px;
    outline: none;
}

.campo input:focus {
    border-color: #1479b8;
    box-shadow: 0 0 0 3px rgba(20, 121, 184, 0.15);
}

button {
    width: 100%;
    height: 50px;
    margin-top: 4px;
    border: none;
    border-radius: 10px;
    color: #ffffff;
    background: linear-gradient(90deg, #0f5f9e, #167bb7);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: 0.2s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(15, 95, 158, 0.28);
}