body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: white;
    background: radial-gradient(circle at center, #1a0033 0%, #0a0015 40%, #000000 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    text-align: center;
    max-width: 450px;
    width: 90%;
    padding: 40px 30px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(123, 44, 255, 0.3);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
    position: relative;
}

.circle {
    background: #7b2cff;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
}

.logo span:first-of-type {
    font-size: 28px;
    font-weight: bold;
}

.admin-badge {
    background: rgba(123, 44, 255, 0.2);
    border: 1px solid #7b2cff;
    color: #7b2cff;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: normal;
    margin-left: 10px;
}

h1 {
    font-size: 28px;
    margin-bottom: 10px;
    color: white;
}

.subtitulo {
    color: #aaa;
    font-size: 14px;
    margin-bottom: 30px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 20px;
}

.input-group {
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #ccc;
    font-weight: 500;
}

.input-group input {
    width: 100%;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(123, 44, 255, 0.3);
    border-radius: 10px;
    color: white;
    font-size: 14px;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.input-group input:focus {
    outline: none;
    border-color: #7b2cff;
    background: rgba(123, 44, 255, 0.1);
    box-shadow: 0 0 10px rgba(123, 44, 255, 0.3);
}

.input-group input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.btn-admin-login {
    margin-top: 10px;
    padding: 14px;
    width: 100%;
    border: none;
    border-radius: 10px;
    background: #7b2cff;
    color: white;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-admin-login:hover {
    background: #651ee6;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(123, 44, 255, 0.4);
}

.btn-admin-login:active {
    transform: translateY(0);
}

.back-link {
    display: inline-block;
    margin-top: 20px;
    color: #7b2cff;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: #9b5cff;
    text-decoration: underline;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .container {
        padding: 30px 25px;
        max-width: 400px;
    }

    h1 {
        font-size: 24px;
    }

    .logo span:first-of-type {
        font-size: 24px;
    }

    .circle {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 25px 20px;
        width: 95%;
    }

    h1 {
        font-size: 22px;
    }

    .subtitulo {
        font-size: 13px;
    }

    .input-group input {
        padding: 10px 12px;
        font-size: 13px;
    }

    .btn-admin-login {
        padding: 12px;
        font-size: 15px;
    }

    .admin-badge {
        font-size: 10px;
        padding: 3px 8px;
    }
}